6463 lines
214 KiB
PHP
6463 lines
214 KiB
PHP
<?php
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/**
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* A PHP class to provide the basic functionality to create a pdf document without
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* any requirement for additional modules.
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*
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* Extended by Orion Richardson to support Unicode / UTF-8 characters using
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* TCPDF and others as a guide.
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*
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* @author Wayne Munro <pdf@ros.co.nz>
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* @author Orion Richardson <orionr@yahoo.com>
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* @author Helmut Tischer <htischer@weihenstephan.org>
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* @author Ryan H. Masten <ryan.masten@gmail.com>
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* @author Brian Sweeney <eclecticgeek@gmail.com>
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* @author Fabien Ménager <fabien.menager@gmail.com>
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* @license Public Domain http://creativecommons.org/licenses/publicdomain/
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* @package Cpdf
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*/
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namespace Dompdf;
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use FontLib\Exception\FontNotFoundException;
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use FontLib\Font;
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use FontLib\BinaryStream;
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class Cpdf
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{
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const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
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const ACROFORM_SIG_APPENDONLY = 0x0002;
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const ACROFORM_FIELD_BUTTON = 'Btn';
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const ACROFORM_FIELD_TEXT = 'Tx';
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const ACROFORM_FIELD_CHOICE = 'Ch';
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const ACROFORM_FIELD_SIG = 'Sig';
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const ACROFORM_FIELD_READONLY = 0x0001;
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const ACROFORM_FIELD_REQUIRED = 0x0002;
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const ACROFORM_FIELD_TEXT_MULTILINE = 0x1000;
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const ACROFORM_FIELD_TEXT_PASSWORD = 0x2000;
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const ACROFORM_FIELD_TEXT_RICHTEXT = 0x10000;
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const ACROFORM_FIELD_CHOICE_COMBO = 0x20000;
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const ACROFORM_FIELD_CHOICE_EDIT = 0x40000;
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const ACROFORM_FIELD_CHOICE_SORT = 0x80000;
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const ACROFORM_FIELD_CHOICE_MULTISELECT = 0x200000;
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const XOBJECT_SUBTYPE_FORM = 'Form';
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/**
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* @var integer The current number of pdf objects in the document
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*/
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public $numObj = 0;
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/**
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* @var array This array contains all of the pdf objects, ready for final assembly
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*/
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public $objects = [];
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/**
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* @var integer The objectId (number within the objects array) of the document catalog
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*/
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public $catalogId;
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/**
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* @var integer The objectId (number within the objects array) of indirect references (Javascript EmbeddedFiles)
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*/
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protected $indirectReferenceId = 0;
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/**
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* @var integer The objectId (number within the objects array)
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*/
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protected $embeddedFilesId = 0;
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/**
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* AcroForm objectId
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*
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* @var integer
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*/
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public $acroFormId;
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/**
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* @var int
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*/
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public $signatureMaxLen = 5000;
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/**
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* @var array Array carrying information about the fonts that the system currently knows about
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* Used to ensure that a font is not loaded twice, among other things
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*/
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public $fonts = [];
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/**
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* @var string The default font metrics file to use if no other font has been loaded.
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* The path to the directory containing the font metrics should be included
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*/
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public $defaultFont = './fonts/Helvetica.afm';
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/**
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* @string A record of the current font
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*/
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public $currentFont = '';
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/**
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* @var string The current base font
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*/
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public $currentBaseFont = '';
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/**
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* @var integer The number of the current font within the font array
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*/
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public $currentFontNum = 0;
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/**
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* @var integer
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*/
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public $currentNode;
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/**
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* @var integer Object number of the current page
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*/
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public $currentPage;
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/**
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* @var integer Object number of the currently active contents block
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*/
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public $currentContents;
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/**
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* @var integer Number of fonts within the system
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*/
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public $numFonts = 0;
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/**
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* @var integer Number of graphic state resources used
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*/
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private $numStates = 0;
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/**
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* @var array Number of graphic state resources used
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*/
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private $gstates = [];
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/**
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* @var array Current color for fill operations, defaults to inactive value,
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* all three components should be between 0 and 1 inclusive when active
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*/
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public $currentColor = null;
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/**
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* @var array Current color for stroke operations (lines etc.)
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*/
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public $currentStrokeColor = null;
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/**
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* @var string Fill rule (nonzero or evenodd)
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*/
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public $fillRule = "nonzero";
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/**
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* @var string Current style that lines are drawn in
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*/
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public $currentLineStyle = '';
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/**
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* @var array Current line transparency (partial graphics state)
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*/
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public $currentLineTransparency = ["mode" => "Normal", "opacity" => 1.0];
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/**
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* array Current fill transparency (partial graphics state)
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*/
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public $currentFillTransparency = ["mode" => "Normal", "opacity" => 1.0];
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/**
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* @var array An array which is used to save the state of the document, mainly the colors and styles
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* it is used to temporarily change to another state, then change back to what it was before
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*/
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public $stateStack = [];
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/**
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* @var integer Number of elements within the state stack
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*/
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public $nStateStack = 0;
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/**
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* @var integer Number of page objects within the document
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*/
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public $numPages = 0;
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/**
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* @var array Object Id storage stack
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*/
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public $stack = [];
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/**
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* @var integer Number of elements within the object Id storage stack
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*/
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public $nStack = 0;
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/**
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* an array which contains information about the objects which are not firmly attached to pages
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* these have been added with the addObject function
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*/
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public $looseObjects = [];
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/**
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* array contains information about how the loose objects are to be added to the document
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*/
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public $addLooseObjects = [];
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/**
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* @var integer The objectId of the information object for the document
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* this contains authorship, title etc.
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*/
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public $infoObject = 0;
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/**
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* @var integer Number of images being tracked within the document
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*/
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public $numImages = 0;
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/**
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* @var array An array containing options about the document
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* it defaults to turning on the compression of the objects
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*/
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public $options = ['compression' => true];
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/**
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* @var integer The objectId of the first page of the document
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*/
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public $firstPageId;
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/**
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* @var integer The object Id of the procset object
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*/
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public $procsetObjectId;
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/**
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* @var array Store the information about the relationship between font families
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* this used so that the code knows which font is the bold version of another font, etc.
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* the value of this array is initialised in the constructor function.
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*/
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public $fontFamilies = [];
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/**
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* @var string Folder for php serialized formats of font metrics files.
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* If empty string, use same folder as original metrics files.
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* This can be passed in from class creator.
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* If this folder does not exist or is not writable, Cpdf will be **much** slower.
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* Because of potential trouble with php safe mode, folder cannot be created at runtime.
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*/
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public $fontcache = '';
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/**
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* @var integer The version of the font metrics cache file.
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* This value must be manually incremented whenever the internal font data structure is modified.
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*/
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public $fontcacheVersion = 6;
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/**
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* @var string Temporary folder.
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* If empty string, will attempt system tmp folder.
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* This can be passed in from class creator.
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*/
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public $tmp = '';
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/**
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* @var string Track if the current font is bolded or italicised
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*/
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public $currentTextState = '';
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/**
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* @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
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*/
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public $messages = '';
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/**
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* @var string The encryption array for the document encryption is stored here
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*/
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public $arc4 = '';
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/**
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* @var integer The object Id of the encryption information
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*/
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public $arc4_objnum = 0;
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/**
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* @var string The file identifier, used to uniquely identify a pdf document
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*/
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public $fileIdentifier = '';
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/**
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* @var boolean A flag to say if a document is to be encrypted or not
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*/
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public $encrypted = false;
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/**
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* @var string The encryption key for the encryption of all the document content (structure is not encrypted)
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*/
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public $encryptionKey = '';
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/**
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* @var array Array which forms a stack to keep track of nested callback functions
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*/
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public $callback = [];
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/**
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* @var integer The number of callback functions in the callback array
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*/
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public $nCallback = 0;
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/**
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* @var array Store label->id pairs for named destinations, these will be used to replace internal links
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* done this way so that destinations can be defined after the location that links to them
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*/
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public $destinations = [];
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/**
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* @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
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* publiciables within the class, so that the user can rollback at will (from each 'start' command)
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* note that this includes the objects array, so these can be large.
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*/
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public $checkpoint = '';
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/**
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* @var array Table of Image origin filenames and image labels which were already added with o_image().
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* Allows to merge identical images
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*/
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public $imagelist = [];
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/**
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* @var boolean Whether the text passed in should be treated as Unicode or just local character set.
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*/
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public $isUnicode = false;
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/**
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* @var string the JavaScript code of the document
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*/
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public $javascript = '';
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/**
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* @var boolean whether the compression is possible
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*/
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protected $compressionReady = false;
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/**
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* @var array Current page size
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*/
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protected $currentPageSize = ["width" => 0, "height" => 0];
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/**
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* @var array All the chars that will be required in the font subsets
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*/
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protected $stringSubsets = [];
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/**
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* @var string The target internal encoding
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*/
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protected static $targetEncoding = 'Windows-1252';
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/**
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* @var array
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*/
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protected $byteRange = array();
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/**
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* @var array The list of the core fonts
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*/
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protected static $coreFonts = [
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'courier',
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'courier-bold',
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'courier-oblique',
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'courier-boldoblique',
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'helvetica',
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'helvetica-bold',
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'helvetica-oblique',
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'helvetica-boldoblique',
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'times-roman',
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'times-bold',
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'times-italic',
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'times-bolditalic',
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'symbol',
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'zapfdingbats'
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];
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/**
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* Class constructor
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* This will start a new document
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*
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* @param array $pageSize Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
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* @param boolean $isUnicode Whether text will be treated as Unicode or not.
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* @param string $fontcache The font cache folder
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* @param string $tmp The temporary folder
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*/
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function __construct($pageSize = [0, 0, 612, 792], $isUnicode = false, $fontcache = '', $tmp = '')
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{
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$this->isUnicode = $isUnicode;
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$this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
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$this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
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$this->newDocument($pageSize);
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$this->compressionReady = function_exists('gzcompress');
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if (in_array('Windows-1252', mb_list_encodings())) {
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self::$targetEncoding = 'Windows-1252';
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}
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// also initialize the font families that are known about already
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$this->setFontFamily('init');
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}
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/**
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* Document object methods (internal use only)
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*
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* There is about one object method for each type of object in the pdf document
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* Each function has the same call list ($id,$action,$options).
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* $id = the object ID of the object, or what it is to be if it is being created
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* $action = a string specifying the action to be performed, though ALL must support:
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* 'new' - create the object with the id $id
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* 'out' - produce the output for the pdf object
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* $options = optional, a string or array containing the various parameters for the object
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*
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* These, in conjunction with the output function are the ONLY way for output to be produced
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* within the pdf 'file'.
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*/
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/**
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* Destination object, used to specify the location for the user to jump to, presently on opening
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*
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* @param $id
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* @param $action
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* @param string $options
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* @return string|null
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*/
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protected function o_destination($id, $action, $options = '')
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{
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switch ($action) {
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case 'new':
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$this->objects[$id] = ['t' => 'destination', 'info' => []];
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$tmp = '';
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switch ($options['type']) {
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case 'XYZ':
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/** @noinspection PhpMissingBreakStatementInspection */
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case 'FitR':
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$tmp = ' ' . $options['p3'] . $tmp;
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case 'FitH':
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case 'FitV':
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case 'FitBH':
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/** @noinspection PhpMissingBreakStatementInspection */
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case 'FitBV':
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$tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
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case 'Fit':
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case 'FitB':
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$tmp = $options['type'] . $tmp;
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$this->objects[$id]['info']['string'] = $tmp;
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$this->objects[$id]['info']['page'] = $options['page'];
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}
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break;
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case 'out':
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$o = &$this->objects[$id];
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$tmp = $o['info'];
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$res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
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return $res;
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}
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return null;
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}
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/**
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* set the viewer preferences
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*
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* @param $id
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* @param $action
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* @param string|array $options
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* @return string|null
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*/
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protected function o_viewerPreferences($id, $action, $options = '')
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{
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switch ($action) {
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case 'new':
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$this->objects[$id] = ['t' => 'viewerPreferences', 'info' => []];
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break;
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case 'add':
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$o = &$this->objects[$id];
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foreach ($options as $k => $v) {
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switch ($k) {
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// Boolean keys
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case 'HideToolbar':
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case 'HideMenubar':
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case 'HideWindowUI':
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case 'FitWindow':
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case 'CenterWindow':
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case 'DisplayDocTitle':
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case 'PickTrayByPDFSize':
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$o['info'][$k] = (bool)$v;
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break;
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// Integer keys
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case 'NumCopies':
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$o['info'][$k] = (int)$v;
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break;
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// Name keys
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case 'ViewArea':
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case 'ViewClip':
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case 'PrintClip':
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case 'PrintArea':
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$o['info'][$k] = (string)$v;
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break;
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// Named with limited valid values
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case 'NonFullScreenPageMode':
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if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
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break;
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}
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$o['info'][$k] = $v;
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break;
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case 'Direction':
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if (!in_array($v, ['L2R', 'R2L'])) {
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break;
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}
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$o['info'][$k] = $v;
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break;
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case 'PrintScaling':
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if (!in_array($v, ['None', 'AppDefault'])) {
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break;
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}
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$o['info'][$k] = $v;
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break;
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case 'Duplex':
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if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
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break;
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}
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$o['info'][$k] = $v;
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break;
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// Integer array
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case 'PrintPageRange':
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// Cast to integer array
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foreach ($v as $vK => $vV) {
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$v[$vK] = (int)$vV;
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}
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$o['info'][$k] = array_values($v);
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break;
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}
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}
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break;
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case 'out':
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$o = &$this->objects[$id];
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$res = "\n$id 0 obj\n<< ";
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foreach ($o['info'] as $k => $v) {
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if (is_string($v)) {
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$v = '/' . $v;
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} elseif (is_int($v)) {
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$v = (string) $v;
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} elseif (is_bool($v)) {
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$v = ($v ? 'true' : 'false');
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} elseif (is_array($v)) {
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$v = '[' . implode(' ', $v) . ']';
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}
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$res .= "\n/$k $v";
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}
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$res .= "\n>>\nendobj";
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return $res;
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}
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return null;
|
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}
|
|
|
|
/**
|
|
* define the document catalog, the overall controller for the document
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string|array $options
|
|
* @return string|null
|
|
*/
|
|
protected function o_catalog($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'catalog', 'info' => []];
|
|
$this->catalogId = $id;
|
|
break;
|
|
|
|
case 'acroform':
|
|
case 'outlines':
|
|
case 'pages':
|
|
case 'openHere':
|
|
case 'names':
|
|
$o['info'][$action] = $options;
|
|
break;
|
|
|
|
case 'viewerPreferences':
|
|
if (!isset($o['info']['viewerPreferences'])) {
|
|
$this->numObj++;
|
|
$this->o_viewerPreferences($this->numObj, 'new');
|
|
$o['info']['viewerPreferences'] = $this->numObj;
|
|
}
|
|
|
|
$vp = $o['info']['viewerPreferences'];
|
|
$this->o_viewerPreferences($vp, 'add', $options);
|
|
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n<< /Type /Catalog";
|
|
|
|
foreach ($o['info'] as $k => $v) {
|
|
switch ($k) {
|
|
case 'outlines':
|
|
$res .= "\n/Outlines $v 0 R";
|
|
break;
|
|
|
|
case 'pages':
|
|
$res .= "\n/Pages $v 0 R";
|
|
break;
|
|
|
|
case 'viewerPreferences':
|
|
$res .= "\n/ViewerPreferences $v 0 R";
|
|
break;
|
|
|
|
case 'openHere':
|
|
$res .= "\n/OpenAction $v 0 R";
|
|
break;
|
|
|
|
case 'names':
|
|
$res .= "\n/Names $v 0 R";
|
|
break;
|
|
|
|
case 'acroform':
|
|
$res .= "\n/AcroForm $v 0 R";
|
|
break;
|
|
}
|
|
}
|
|
|
|
$res .= " >>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* object which is a parent to the pages in the document
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return string|null
|
|
*/
|
|
protected function o_pages($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'pages', 'info' => []];
|
|
$this->o_catalog($this->catalogId, 'pages', $id);
|
|
break;
|
|
|
|
case 'page':
|
|
if (!is_array($options)) {
|
|
// then it will just be the id of the new page
|
|
$o['info']['pages'][] = $options;
|
|
} else {
|
|
// then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
|
|
// and pos is either 'before' or 'after', saying where this page will fit.
|
|
if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
|
|
$i = array_search($options['rid'], $o['info']['pages']);
|
|
if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
|
|
|
|
// then there is a match
|
|
// make a space
|
|
switch ($options['pos']) {
|
|
case 'before':
|
|
$k = $i;
|
|
break;
|
|
|
|
case 'after':
|
|
$k = $i + 1;
|
|
break;
|
|
|
|
default:
|
|
$k = -1;
|
|
break;
|
|
}
|
|
|
|
if ($k >= 0) {
|
|
for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
|
|
$o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
|
|
}
|
|
|
|
$o['info']['pages'][$k] = $options['id'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'procset':
|
|
$o['info']['procset'] = $options;
|
|
break;
|
|
|
|
case 'mediaBox':
|
|
$o['info']['mediaBox'] = $options;
|
|
// which should be an array of 4 numbers
|
|
$this->currentPageSize = ['width' => $options[2], 'height' => $options[3]];
|
|
break;
|
|
|
|
case 'font':
|
|
$o['info']['fonts'][] = ['objNum' => $options['objNum'], 'fontNum' => $options['fontNum']];
|
|
break;
|
|
|
|
case 'extGState':
|
|
$o['info']['extGStates'][] = ['objNum' => $options['objNum'], 'stateNum' => $options['stateNum']];
|
|
break;
|
|
|
|
case 'xObject':
|
|
$o['info']['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
|
|
break;
|
|
|
|
case 'out':
|
|
if (count($o['info']['pages'])) {
|
|
$res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
|
|
foreach ($o['info']['pages'] as $v) {
|
|
$res .= "$v 0 R\n";
|
|
}
|
|
|
|
$res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
|
|
|
|
if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
|
|
isset($o['info']['procset']) ||
|
|
(isset($o['info']['extGStates']) && count($o['info']['extGStates']))
|
|
) {
|
|
$res .= "\n/Resources <<";
|
|
|
|
if (isset($o['info']['procset'])) {
|
|
$res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
|
|
}
|
|
|
|
if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
|
|
$res .= "\n/Font << ";
|
|
foreach ($o['info']['fonts'] as $finfo) {
|
|
$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
|
|
}
|
|
$res .= "\n>>";
|
|
}
|
|
|
|
if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
|
|
$res .= "\n/XObject << ";
|
|
foreach ($o['info']['xObjects'] as $finfo) {
|
|
$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
|
|
}
|
|
$res .= "\n>>";
|
|
}
|
|
|
|
if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
|
|
$res .= "\n/ExtGState << ";
|
|
foreach ($o['info']['extGStates'] as $gstate) {
|
|
$res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
|
|
}
|
|
$res .= "\n>>";
|
|
}
|
|
|
|
$res .= "\n>>";
|
|
if (isset($o['info']['mediaBox'])) {
|
|
$tmp = $o['info']['mediaBox'];
|
|
$res .= "\n/MediaBox [" . sprintf(
|
|
'%.3F %.3F %.3F %.3F',
|
|
$tmp[0],
|
|
$tmp[1],
|
|
$tmp[2],
|
|
$tmp[3]
|
|
) . ']';
|
|
}
|
|
}
|
|
|
|
$res .= "\n >>\nendobj";
|
|
} else {
|
|
$res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* define the outlines in the doc, empty for now
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return string|null
|
|
*/
|
|
protected function o_outlines($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'outlines', 'info' => ['outlines' => []]];
|
|
$this->o_catalog($this->catalogId, 'outlines', $id);
|
|
break;
|
|
|
|
case 'outline':
|
|
$o['info']['outlines'][] = $options;
|
|
break;
|
|
|
|
case 'out':
|
|
if (count($o['info']['outlines'])) {
|
|
$res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
|
|
foreach ($o['info']['outlines'] as $v) {
|
|
$res .= "$v 0 R ";
|
|
}
|
|
|
|
$res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
|
|
} else {
|
|
$res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* an object to hold the font description
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string|array $options
|
|
* @return string|null
|
|
* @throws FontNotFoundException
|
|
*/
|
|
protected function o_font($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = [
|
|
't' => 'font',
|
|
'info' => [
|
|
'name' => $options['name'],
|
|
'fontFileName' => $options['fontFileName'],
|
|
'SubType' => 'Type1',
|
|
'isSubsetting' => $options['isSubsetting']
|
|
]
|
|
];
|
|
$fontNum = $this->numFonts;
|
|
$this->objects[$id]['info']['fontNum'] = $fontNum;
|
|
|
|
// deal with the encoding and the differences
|
|
if (isset($options['differences'])) {
|
|
// then we'll need an encoding dictionary
|
|
$this->numObj++;
|
|
$this->o_fontEncoding($this->numObj, 'new', $options);
|
|
$this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
|
|
} else {
|
|
if (isset($options['encoding'])) {
|
|
// we can specify encoding here
|
|
switch ($options['encoding']) {
|
|
case 'WinAnsiEncoding':
|
|
case 'MacRomanEncoding':
|
|
case 'MacExpertEncoding':
|
|
$this->objects[$id]['info']['encoding'] = $options['encoding'];
|
|
break;
|
|
|
|
case 'none':
|
|
break;
|
|
|
|
default:
|
|
$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
|
|
break;
|
|
}
|
|
} else {
|
|
$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
|
|
}
|
|
}
|
|
|
|
if ($this->fonts[$options['fontFileName']]['isUnicode']) {
|
|
// For Unicode fonts, we need to incorporate font data into
|
|
// sub-sections that are linked from the primary font section.
|
|
// Look at o_fontGIDtoCID and o_fontDescendentCID functions
|
|
// for more information.
|
|
//
|
|
// All of this code is adapted from the excellent changes made to
|
|
// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
|
|
|
|
$toUnicodeId = ++$this->numObj;
|
|
$this->o_toUnicode($toUnicodeId, 'new');
|
|
$this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
|
|
|
|
$cidFontId = ++$this->numObj;
|
|
$this->o_fontDescendentCID($cidFontId, 'new', $options);
|
|
$this->objects[$id]['info']['cidFont'] = $cidFontId;
|
|
}
|
|
|
|
// also tell the pages node about the new font
|
|
$this->o_pages($this->currentNode, 'font', ['fontNum' => $fontNum, 'objNum' => $id]);
|
|
break;
|
|
|
|
case 'add':
|
|
$font_options = $this->processFont($id, $o['info']);
|
|
|
|
if ($font_options !== false) {
|
|
foreach ($font_options as $k => $v) {
|
|
switch ($k) {
|
|
case 'BaseFont':
|
|
$o['info']['name'] = $v;
|
|
break;
|
|
case 'FirstChar':
|
|
case 'LastChar':
|
|
case 'Widths':
|
|
case 'FontDescriptor':
|
|
case 'SubType':
|
|
$this->addMessage('o_font ' . $k . " : " . $v);
|
|
$o['info'][$k] = $v;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// pass values down to descendent font
|
|
if (isset($o['info']['cidFont'])) {
|
|
$this->o_fontDescendentCID($o['info']['cidFont'], 'add', $font_options);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'out':
|
|
if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
|
|
// For Unicode fonts, we need to incorporate font data into
|
|
// sub-sections that are linked from the primary font section.
|
|
// Look at o_fontGIDtoCID and o_fontDescendentCID functions
|
|
// for more information.
|
|
//
|
|
// All of this code is adapted from the excellent changes made to
|
|
// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
|
|
|
|
$res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
|
|
$res .= "/BaseFont /" . $o['info']['name'] . "\n";
|
|
|
|
// The horizontal identity mapping for 2-byte CIDs; may be used
|
|
// with CIDFonts using any Registry, Ordering, and Supplement values.
|
|
$res .= "/Encoding /Identity-H\n";
|
|
$res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
|
|
$res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
|
|
$res .= ">>\n";
|
|
$res .= "endobj";
|
|
} else {
|
|
$res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
|
|
$res .= "/Name /F" . $o['info']['fontNum'] . "\n";
|
|
$res .= "/BaseFont /" . $o['info']['name'] . "\n";
|
|
|
|
if (isset($o['info']['encodingDictionary'])) {
|
|
// then place a reference to the dictionary
|
|
$res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
|
|
} else {
|
|
if (isset($o['info']['encoding'])) {
|
|
// use the specified encoding
|
|
$res .= "/Encoding /" . $o['info']['encoding'] . "\n";
|
|
}
|
|
}
|
|
|
|
if (isset($o['info']['FirstChar'])) {
|
|
$res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
|
|
}
|
|
|
|
if (isset($o['info']['LastChar'])) {
|
|
$res .= "/LastChar " . $o['info']['LastChar'] . "\n";
|
|
}
|
|
|
|
if (isset($o['info']['Widths'])) {
|
|
$res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
|
|
}
|
|
|
|
if (isset($o['info']['FontDescriptor'])) {
|
|
$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
|
|
}
|
|
|
|
$res .= ">>\n";
|
|
$res .= "endobj";
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected function getFontSubsettingTag(array $font): string
|
|
{
|
|
// convert font num to hexavigesimal numeral system letters A - Z only
|
|
$base_26 = strtoupper(base_convert($font['fontNum'], 10, 26));
|
|
for ($i = 0; $i < strlen($base_26); $i++) {
|
|
$char = $base_26[$i];
|
|
if ($char <= "9") {
|
|
$base_26[$i] = chr(65 + intval($char));
|
|
} else {
|
|
$base_26[$i] = chr(ord($char) + 10);
|
|
}
|
|
}
|
|
|
|
return 'SUB' . str_pad($base_26, 3 , 'A', STR_PAD_LEFT);
|
|
}
|
|
|
|
/**
|
|
* @param int $fontObjId
|
|
* @param array $object_info
|
|
* @return array|false
|
|
* @throws FontNotFoundException
|
|
*/
|
|
private function processFont(int $fontObjId, array $object_info)
|
|
{
|
|
$fontFileName = $object_info['fontFileName'];
|
|
if (!isset($this->fonts[$fontFileName])) {
|
|
return false;
|
|
}
|
|
|
|
$font = &$this->fonts[$fontFileName];
|
|
|
|
$fileSuffix = $font['fileSuffix'];
|
|
$fileSuffixLower = strtolower($font['fileSuffix']);
|
|
$fbfile = "$fontFileName.$fileSuffix";
|
|
$isTtfFont = $fileSuffixLower === 'ttf';
|
|
$isPfbFont = $fileSuffixLower === 'pfb';
|
|
|
|
$this->addMessage('selectFont: checking for - ' . $fbfile);
|
|
|
|
if (!$fileSuffix) {
|
|
$this->addMessage(
|
|
'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
|
|
);
|
|
|
|
return false;
|
|
} else {
|
|
$adobeFontName = isset($font['PostScriptName']) ? $font['PostScriptName'] : $font['FontName'];
|
|
// $fontObj = $this->numObj;
|
|
$this->addMessage("selectFont: adding font file - $fbfile - $adobeFontName");
|
|
|
|
// find the array of font widths, and put that into an object.
|
|
$firstChar = -1;
|
|
$lastChar = 0;
|
|
$widths = [];
|
|
$cid_widths = [];
|
|
|
|
foreach ($font['C'] as $num => $d) {
|
|
if (intval($num) > 0 || $num == '0') {
|
|
if (!$font['isUnicode']) {
|
|
// With Unicode, widths array isn't used
|
|
if ($lastChar > 0 && $num > $lastChar + 1) {
|
|
for ($i = $lastChar + 1; $i < $num; $i++) {
|
|
$widths[] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
$widths[] = $d;
|
|
|
|
if ($font['isUnicode']) {
|
|
$cid_widths[$num] = $d;
|
|
}
|
|
|
|
if ($firstChar == -1) {
|
|
$firstChar = $num;
|
|
}
|
|
|
|
$lastChar = $num;
|
|
}
|
|
}
|
|
|
|
// also need to adjust the widths for the differences array
|
|
if (isset($object['differences'])) {
|
|
foreach ($object['differences'] as $charNum => $charName) {
|
|
if ($charNum > $lastChar) {
|
|
if (!$object['isUnicode']) {
|
|
// With Unicode, widths array isn't used
|
|
for ($i = $lastChar + 1; $i <= $charNum; $i++) {
|
|
$widths[] = 0;
|
|
}
|
|
}
|
|
|
|
$lastChar = $charNum;
|
|
}
|
|
|
|
if (isset($font['C'][$charName])) {
|
|
$widths[$charNum - $firstChar] = $font['C'][$charName];
|
|
if ($font['isUnicode']) {
|
|
$cid_widths[$charName] = $font['C'][$charName];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($font['isUnicode']) {
|
|
$font['CIDWidths'] = $cid_widths;
|
|
}
|
|
|
|
$this->addMessage('selectFont: FirstChar = ' . $firstChar);
|
|
$this->addMessage('selectFont: LastChar = ' . $lastChar);
|
|
|
|
$widthid = -1;
|
|
|
|
if (!$font['isUnicode']) {
|
|
// With Unicode, widths array isn't used
|
|
|
|
$this->numObj++;
|
|
$this->o_contents($this->numObj, 'new', 'raw');
|
|
$this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
|
|
$widthid = $this->numObj;
|
|
}
|
|
|
|
$missing_width = 500;
|
|
$stemV = 70;
|
|
|
|
if (isset($font['MissingWidth'])) {
|
|
$missing_width = $font['MissingWidth'];
|
|
}
|
|
if (isset($font['StdVW'])) {
|
|
$stemV = $font['StdVW'];
|
|
} else {
|
|
if (isset($font['Weight']) && preg_match('!(bold|black)!i', $font['Weight'])) {
|
|
$stemV = 120;
|
|
}
|
|
}
|
|
|
|
// load the pfb file, and put that into an object too.
|
|
// note that pdf supports only binary format type 1 font files, though there is a
|
|
// simple utility to convert them from pfa to pfb.
|
|
if (!$font['isSubsetting']) {
|
|
$data = file_get_contents($fbfile);
|
|
} else {
|
|
$adobeFontName = $this->getFontSubsettingTag($font) . '+' . $adobeFontName;
|
|
$this->stringSubsets[$fontFileName][] = 32; // Force space if not in yet
|
|
|
|
$subset = $this->stringSubsets[$fontFileName];
|
|
sort($subset);
|
|
|
|
// Load font
|
|
$font_obj = Font::load($fbfile);
|
|
$font_obj->parse();
|
|
|
|
// Define subset
|
|
$font_obj->setSubset($subset);
|
|
$font_obj->reduce();
|
|
|
|
// Write new font
|
|
$tmp_name = $this->tmp . "/" . basename($fbfile) . ".tmp." . uniqid();
|
|
touch($tmp_name);
|
|
$font_obj->open($tmp_name, BinaryStream::modeReadWrite);
|
|
$font_obj->encode(["OS/2"]);
|
|
$font_obj->close();
|
|
|
|
// Parse the new font to get cid2gid and widths
|
|
$font_obj = Font::load($tmp_name);
|
|
|
|
// Find Unicode char map table
|
|
$subtable = null;
|
|
foreach ($font_obj->getData("cmap", "subtables") as $_subtable) {
|
|
if ($_subtable["platformID"] == 0 || $_subtable["platformID"] == 3 && $_subtable["platformSpecificID"] == 1) {
|
|
$subtable = $_subtable;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($subtable) {
|
|
$glyphIndexArray = $subtable["glyphIndexArray"];
|
|
$hmtx = $font_obj->getData("hmtx");
|
|
|
|
unset($glyphIndexArray[0xFFFF]);
|
|
|
|
$cidtogid = str_pad('', max(array_keys($glyphIndexArray)) * 2 + 1, "\x00");
|
|
$font['CIDWidths'] = [];
|
|
foreach ($glyphIndexArray as $cid => $gid) {
|
|
if ($cid >= 0 && $cid < 0xFFFF && $gid) {
|
|
$cidtogid[$cid * 2] = chr($gid >> 8);
|
|
$cidtogid[$cid * 2 + 1] = chr($gid & 0xFF);
|
|
}
|
|
|
|
$width = $font_obj->normalizeFUnit(isset($hmtx[$gid]) ? $hmtx[$gid][0] : $hmtx[0][0]);
|
|
$font['CIDWidths'][$cid] = $width;
|
|
}
|
|
|
|
$font['CIDtoGID'] = base64_encode(gzcompress($cidtogid));
|
|
$font['CIDtoGID_Compressed'] = true;
|
|
|
|
$data = file_get_contents($tmp_name);
|
|
} else {
|
|
$data = file_get_contents($fbfile);
|
|
}
|
|
|
|
$font_obj->close();
|
|
unlink($tmp_name);
|
|
}
|
|
|
|
// create the font descriptor
|
|
$this->numObj++;
|
|
$fontDescriptorId = $this->numObj;
|
|
|
|
$this->numObj++;
|
|
$pfbid = $this->numObj;
|
|
|
|
// determine flags (more than a little flakey, hopefully will not matter much)
|
|
$flags = 0;
|
|
|
|
if ($font['ItalicAngle'] != 0) {
|
|
$flags += pow(2, 6);
|
|
}
|
|
|
|
if ($font['IsFixedPitch'] === 'true') {
|
|
$flags += 1;
|
|
}
|
|
|
|
$flags += pow(2, 5); // assume non-sybolic
|
|
$list = [
|
|
'Ascent' => 'Ascender',
|
|
'CapHeight' => 'Ascender', //FIXME: php-font-lib is not grabbing this value, so we'll fake it and use the Ascender value // 'CapHeight'
|
|
'MissingWidth' => 'MissingWidth',
|
|
'Descent' => 'Descender',
|
|
'FontBBox' => 'FontBBox',
|
|
'ItalicAngle' => 'ItalicAngle'
|
|
];
|
|
$fdopt = [
|
|
'Flags' => $flags,
|
|
'FontName' => $adobeFontName,
|
|
'StemV' => $stemV
|
|
];
|
|
|
|
foreach ($list as $k => $v) {
|
|
if (isset($font[$v])) {
|
|
$fdopt[$k] = $font[$v];
|
|
}
|
|
}
|
|
|
|
if ($isPfbFont) {
|
|
$fdopt['FontFile'] = $pfbid;
|
|
} elseif ($isTtfFont) {
|
|
$fdopt['FontFile2'] = $pfbid;
|
|
}
|
|
|
|
$this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
|
|
|
|
// embed the font program
|
|
$this->o_contents($this->numObj, 'new');
|
|
$this->objects[$pfbid]['c'] .= $data;
|
|
|
|
// determine the cruicial lengths within this file
|
|
if ($isPfbFont) {
|
|
$l1 = strpos($data, 'eexec') + 6;
|
|
$l2 = strpos($data, '00000000') - $l1;
|
|
$l3 = mb_strlen($data, '8bit') - $l2 - $l1;
|
|
$this->o_contents(
|
|
$this->numObj,
|
|
'add',
|
|
['Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3]
|
|
);
|
|
} elseif ($isTtfFont) {
|
|
$l1 = mb_strlen($data, '8bit');
|
|
$this->o_contents($this->numObj, 'add', ['Length1' => $l1]);
|
|
}
|
|
|
|
// tell the font object about all this new stuff
|
|
$options = [
|
|
'BaseFont' => $adobeFontName,
|
|
'MissingWidth' => $missing_width,
|
|
'Widths' => $widthid,
|
|
'FirstChar' => $firstChar,
|
|
'LastChar' => $lastChar,
|
|
'FontDescriptor' => $fontDescriptorId
|
|
];
|
|
|
|
if ($isTtfFont) {
|
|
$options['SubType'] = 'TrueType';
|
|
}
|
|
|
|
$this->addMessage("adding extra info to font.($fontObjId)");
|
|
|
|
foreach ($options as $fk => $fv) {
|
|
$this->addMessage("$fk : $fv");
|
|
}
|
|
}
|
|
|
|
return $options;
|
|
}
|
|
|
|
/**
|
|
* A toUnicode section, needed for unicode fonts
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @return null|string
|
|
*/
|
|
protected function o_toUnicode($id, $action)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = [
|
|
't' => 'toUnicode'
|
|
];
|
|
break;
|
|
case 'add':
|
|
break;
|
|
case 'out':
|
|
$ordering = 'UCS';
|
|
$registry = 'Adobe';
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$ordering = $this->ARC4($ordering);
|
|
$registry = $this->filterText($this->ARC4($registry), false, false);
|
|
}
|
|
|
|
$stream = <<<EOT
|
|
/CIDInit /ProcSet findresource begin
|
|
12 dict begin
|
|
begincmap
|
|
/CIDSystemInfo
|
|
<</Registry ($registry)
|
|
/Ordering ($ordering)
|
|
/Supplement 0
|
|
>> def
|
|
/CMapName /Adobe-Identity-UCS def
|
|
/CMapType 2 def
|
|
1 begincodespacerange
|
|
<0000> <FFFF>
|
|
endcodespacerange
|
|
1 beginbfrange
|
|
<0000> <FFFF> <0000>
|
|
endbfrange
|
|
endcmap
|
|
CMapName currentdict /CMap defineresource pop
|
|
end
|
|
end
|
|
EOT;
|
|
|
|
$res = "\n$id 0 obj\n";
|
|
$res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
|
|
$res .= "stream\n" . $stream . "\nendstream" . "\nendobj";;
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* a font descriptor, needed for including additional fonts
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_fontDescriptor($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'fontDescriptor', 'info' => $options];
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
|
|
foreach ($o['info'] as $label => $value) {
|
|
switch ($label) {
|
|
case 'Ascent':
|
|
case 'CapHeight':
|
|
case 'Descent':
|
|
case 'Flags':
|
|
case 'ItalicAngle':
|
|
case 'StemV':
|
|
case 'AvgWidth':
|
|
case 'Leading':
|
|
case 'MaxWidth':
|
|
case 'MissingWidth':
|
|
case 'StemH':
|
|
case 'XHeight':
|
|
case 'CharSet':
|
|
if (mb_strlen($value, '8bit')) {
|
|
$res .= "/$label $value\n";
|
|
}
|
|
|
|
break;
|
|
case 'FontFile':
|
|
case 'FontFile2':
|
|
case 'FontFile3':
|
|
$res .= "/$label $value 0 R\n";
|
|
break;
|
|
|
|
case 'FontBBox':
|
|
$res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
|
|
break;
|
|
|
|
case 'FontName':
|
|
$res .= "/$label /$value\n";
|
|
break;
|
|
}
|
|
}
|
|
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* the font encoding
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_fontEncoding($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
// the options array should contain 'differences' and maybe 'encoding'
|
|
$this->objects[$id] = ['t' => 'fontEncoding', 'info' => $options];
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n<< /Type /Encoding\n";
|
|
if (!isset($o['info']['encoding'])) {
|
|
$o['info']['encoding'] = 'WinAnsiEncoding';
|
|
}
|
|
|
|
if ($o['info']['encoding'] !== 'none') {
|
|
$res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
|
|
}
|
|
|
|
$res .= "/Differences \n[";
|
|
|
|
$onum = -100;
|
|
|
|
foreach ($o['info']['differences'] as $num => $label) {
|
|
if ($num != $onum + 1) {
|
|
// we cannot make use of consecutive numbering
|
|
$res .= "\n$num /$label";
|
|
} else {
|
|
$res .= " /$label";
|
|
}
|
|
|
|
$onum = $num;
|
|
}
|
|
|
|
$res .= "\n]\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* a descendent cid font, needed for unicode fonts
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string|array $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_fontDescendentCID($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'fontDescendentCID', 'info' => $options];
|
|
|
|
// we need a CID system info section
|
|
$cidSystemInfoId = ++$this->numObj;
|
|
$this->o_cidSystemInfo($cidSystemInfoId, 'new');
|
|
$this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
|
|
|
|
// and a CID to GID map
|
|
$cidToGidMapId = ++$this->numObj;
|
|
$this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
|
|
$this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
|
|
break;
|
|
|
|
case 'add':
|
|
foreach ($options as $k => $v) {
|
|
switch ($k) {
|
|
case 'BaseFont':
|
|
$o['info']['name'] = $v;
|
|
break;
|
|
|
|
case 'FirstChar':
|
|
case 'LastChar':
|
|
case 'MissingWidth':
|
|
case 'FontDescriptor':
|
|
case 'SubType':
|
|
$this->addMessage("o_fontDescendentCID $k : $v");
|
|
$o['info'][$k] = $v;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// pass values down to cid to gid map
|
|
$this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n";
|
|
$res .= "<</Type /Font\n";
|
|
$res .= "/Subtype /CIDFontType2\n";
|
|
$res .= "/BaseFont /" . $o['info']['name'] . "\n";
|
|
$res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
|
|
// if (isset($o['info']['FirstChar'])) {
|
|
// $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
|
|
// }
|
|
|
|
// if (isset($o['info']['LastChar'])) {
|
|
// $res.= "/LastChar ".$o['info']['LastChar']."\n";
|
|
// }
|
|
if (isset($o['info']['FontDescriptor'])) {
|
|
$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
|
|
}
|
|
|
|
if (isset($o['info']['MissingWidth'])) {
|
|
$res .= "/DW " . $o['info']['MissingWidth'] . "\n";
|
|
}
|
|
|
|
if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
|
|
$cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
|
|
$w = '';
|
|
foreach ($cid_widths as $cid => $width) {
|
|
$w .= "$cid [$width] ";
|
|
}
|
|
$res .= "/W [$w]\n";
|
|
}
|
|
|
|
$res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
|
|
$res .= ">>\n";
|
|
$res .= "endobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* CID system info section, needed for unicode fonts
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @return null|string
|
|
*/
|
|
protected function o_cidSystemInfo($id, $action)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = [
|
|
't' => 'cidSystemInfo'
|
|
];
|
|
break;
|
|
case 'add':
|
|
break;
|
|
case 'out':
|
|
$ordering = 'UCS';
|
|
$registry = 'Adobe';
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$ordering = $this->ARC4($ordering);
|
|
$registry = $this->ARC4($registry);
|
|
}
|
|
|
|
|
|
$res = "\n$id 0 obj\n";
|
|
|
|
$res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
|
|
$res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
|
|
$res .= "/Supplement 0\n"; // The supplement number of the character collection.
|
|
$res .= ">>";
|
|
|
|
$res .= "\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* a font glyph to character map, needed for unicode fonts
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_fontGIDtoCIDMap($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'fontGIDtoCIDMap', 'info' => $options];
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n";
|
|
$fontFileName = $o['info']['fontFileName'];
|
|
$tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
|
|
|
|
$compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
|
|
$this->fonts[$fontFileName]['CIDtoGID_Compressed'];
|
|
|
|
if (!$compressed && isset($o['raw'])) {
|
|
$res .= $tmp;
|
|
} else {
|
|
$res .= "<<";
|
|
|
|
if (!$compressed && $this->compressionReady && $this->options['compression']) {
|
|
// then implement ZLIB based compression on this content stream
|
|
$compressed = true;
|
|
$tmp = gzcompress($tmp, 6);
|
|
}
|
|
if ($compressed) {
|
|
$res .= "\n/Filter /FlateDecode";
|
|
}
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$tmp = $this->ARC4($tmp);
|
|
}
|
|
|
|
$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
|
|
}
|
|
|
|
$res .= "\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* the document procset, solves some problems with printing to old PS printers
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_procset($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'procset', 'info' => ['PDF' => 1, 'Text' => 1]];
|
|
$this->o_pages($this->currentNode, 'procset', $id);
|
|
$this->procsetObjectId = $id;
|
|
break;
|
|
|
|
case 'add':
|
|
// this is to add new items to the procset list, despite the fact that this is considered
|
|
// obsolete, the items are required for printing to some postscript printers
|
|
switch ($options) {
|
|
case 'ImageB':
|
|
case 'ImageC':
|
|
case 'ImageI':
|
|
$o['info'][$options] = 1;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n[";
|
|
foreach ($o['info'] as $label => $val) {
|
|
$res .= "/$label ";
|
|
}
|
|
$res .= "]\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* define the document information
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_info($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->infoObject = $id;
|
|
$date = 'D:' . @date('Ymd');
|
|
$this->objects[$id] = [
|
|
't' => 'info',
|
|
'info' => [
|
|
'Producer' => 'CPDF (dompdf)',
|
|
'CreationDate' => $date
|
|
]
|
|
];
|
|
break;
|
|
case 'Title':
|
|
case 'Author':
|
|
case 'Subject':
|
|
case 'Keywords':
|
|
case 'Creator':
|
|
case 'Producer':
|
|
case 'CreationDate':
|
|
case 'ModDate':
|
|
case 'Trapped':
|
|
$this->objects[$id]['info'][$action] = $options;
|
|
break;
|
|
|
|
case 'out':
|
|
$encrypted = $this->encrypted;
|
|
if ($encrypted) {
|
|
$this->encryptInit($id);
|
|
}
|
|
|
|
$res = "\n$id 0 obj\n<<\n";
|
|
$o = &$this->objects[$id];
|
|
foreach ($o['info'] as $k => $v) {
|
|
$res .= "/$k (";
|
|
|
|
// dates must be outputted as-is, without Unicode transformations
|
|
if ($k !== 'CreationDate' && $k !== 'ModDate') {
|
|
$v = $this->filterText($v, true, false);
|
|
}
|
|
|
|
if ($encrypted) {
|
|
$v = $this->ARC4($v);
|
|
}
|
|
|
|
$res .= $v;
|
|
$res .= ")\n";
|
|
}
|
|
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* an action object, used to link to URLS initially
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_action($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
if (is_array($options)) {
|
|
$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => $options['type']];
|
|
} else {
|
|
// then assume a URI action
|
|
$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => 'URI'];
|
|
}
|
|
break;
|
|
|
|
case 'out':
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
}
|
|
|
|
$res = "\n$id 0 obj\n<< /Type /Action";
|
|
switch ($o['type']) {
|
|
case 'ilink':
|
|
if (!isset($this->destinations[(string)$o['info']['label']])) {
|
|
break;
|
|
}
|
|
|
|
// there will be an 'label' setting, this is the name of the destination
|
|
$res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
|
|
break;
|
|
|
|
case 'URI':
|
|
$res .= "\n/S /URI\n/URI (";
|
|
if ($this->encrypted) {
|
|
$res .= $this->filterText($this->ARC4($o['info']), false, false);
|
|
} else {
|
|
$res .= $this->filterText($o['info'], false, false);
|
|
}
|
|
|
|
$res .= ")";
|
|
break;
|
|
}
|
|
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* an annotation object, this will add an annotation to the current page.
|
|
* initially will support just link annotations
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_annotation($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
// add the annotation to the current page
|
|
$pageId = $this->currentPage;
|
|
$this->o_page($pageId, 'annot', $id);
|
|
|
|
// and add the action object which is going to be required
|
|
switch ($options['type']) {
|
|
case 'link':
|
|
$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
|
|
$this->numObj++;
|
|
$this->o_action($this->numObj, 'new', $options['url']);
|
|
$this->objects[$id]['info']['actionId'] = $this->numObj;
|
|
break;
|
|
|
|
case 'ilink':
|
|
// this is to a named internal link
|
|
$label = $options['label'];
|
|
$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
|
|
$this->numObj++;
|
|
$this->o_action($this->numObj, 'new', ['type' => 'ilink', 'label' => $label]);
|
|
$this->objects[$id]['info']['actionId'] = $this->numObj;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n<< /Type /Annot";
|
|
switch ($o['info']['type']) {
|
|
case 'link':
|
|
case 'ilink':
|
|
$res .= "\n/Subtype /Link";
|
|
break;
|
|
}
|
|
$res .= "\n/A " . $o['info']['actionId'] . " 0 R";
|
|
$res .= "\n/Border [0 0 0]";
|
|
$res .= "\n/H /I";
|
|
$res .= "\n/Rect [ ";
|
|
|
|
foreach ($o['info']['rect'] as $v) {
|
|
$res .= sprintf("%.4F ", $v);
|
|
}
|
|
|
|
$res .= "]";
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* a page object, it also creates a contents object to hold its contents
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_page($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->numPages++;
|
|
$this->objects[$id] = [
|
|
't' => 'page',
|
|
'info' => [
|
|
'parent' => $this->currentNode,
|
|
'pageNum' => $this->numPages,
|
|
'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
|
|
]
|
|
];
|
|
|
|
if (is_array($options)) {
|
|
// then this must be a page insertion, array should contain 'rid','pos'=[before|after]
|
|
$options['id'] = $id;
|
|
$this->o_pages($this->currentNode, 'page', $options);
|
|
} else {
|
|
$this->o_pages($this->currentNode, 'page', $id);
|
|
}
|
|
|
|
$this->currentPage = $id;
|
|
//make a contents object to go with this page
|
|
$this->numObj++;
|
|
$this->o_contents($this->numObj, 'new', $id);
|
|
$this->currentContents = $this->numObj;
|
|
$this->objects[$id]['info']['contents'] = [];
|
|
$this->objects[$id]['info']['contents'][] = $this->numObj;
|
|
|
|
$match = ($this->numPages % 2 ? 'odd' : 'even');
|
|
foreach ($this->addLooseObjects as $oId => $target) {
|
|
if ($target === 'all' || $match === $target) {
|
|
$this->objects[$id]['info']['contents'][] = $oId;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'content':
|
|
$o['info']['contents'][] = $options;
|
|
break;
|
|
|
|
case 'annot':
|
|
// add an annotation to this page
|
|
if (!isset($o['info']['annot'])) {
|
|
$o['info']['annot'] = [];
|
|
}
|
|
|
|
// $options should contain the id of the annotation dictionary
|
|
$o['info']['annot'][] = $options;
|
|
break;
|
|
|
|
case 'out':
|
|
$res = "\n$id 0 obj\n<< /Type /Page";
|
|
if (isset($o['info']['mediaBox'])) {
|
|
$tmp = $o['info']['mediaBox'];
|
|
$res .= "\n/MediaBox [" . sprintf(
|
|
'%.3F %.3F %.3F %.3F',
|
|
$tmp[0],
|
|
$tmp[1],
|
|
$tmp[2],
|
|
$tmp[3]
|
|
) . ']';
|
|
}
|
|
$res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
|
|
|
|
if (isset($o['info']['annot'])) {
|
|
$res .= "\n/Annots [";
|
|
foreach ($o['info']['annot'] as $aId) {
|
|
$res .= " $aId 0 R";
|
|
}
|
|
$res .= " ]";
|
|
}
|
|
|
|
$count = count($o['info']['contents']);
|
|
if ($count == 1) {
|
|
$res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
|
|
} else {
|
|
if ($count > 1) {
|
|
$res .= "\n/Contents [\n";
|
|
|
|
// reverse the page contents so added objects are below normal content
|
|
//foreach (array_reverse($o['info']['contents']) as $cId) {
|
|
// Back to normal now that I've got transparency working --Benj
|
|
foreach ($o['info']['contents'] as $cId) {
|
|
$res .= "$cId 0 R\n";
|
|
}
|
|
$res .= "]";
|
|
}
|
|
}
|
|
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* the contents objects hold all of the content which appears on pages
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string|array $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_contents($id, $action, $options = '')
|
|
{
|
|
if ($action !== 'new') {
|
|
$o = &$this->objects[$id];
|
|
}
|
|
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'contents', 'c' => '', 'info' => []];
|
|
if (mb_strlen($options, '8bit') && intval($options)) {
|
|
// then this contents is the primary for a page
|
|
$this->objects[$id]['onPage'] = $options;
|
|
} else {
|
|
if ($options === 'raw') {
|
|
// then this page contains some other type of system object
|
|
$this->objects[$id]['raw'] = 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'add':
|
|
// add more options to the declaration
|
|
foreach ($options as $k => $v) {
|
|
$o['info'][$k] = $v;
|
|
}
|
|
|
|
case 'out':
|
|
$tmp = $o['c'];
|
|
$res = "\n$id 0 obj\n";
|
|
|
|
if (isset($this->objects[$id]['raw'])) {
|
|
$res .= $tmp;
|
|
} else {
|
|
$res .= "<<";
|
|
if ($this->compressionReady && $this->options['compression']) {
|
|
// then implement ZLIB based compression on this content stream
|
|
$res .= " /Filter /FlateDecode";
|
|
$tmp = gzcompress($tmp, 6);
|
|
}
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$tmp = $this->ARC4($tmp);
|
|
}
|
|
|
|
foreach ($o['info'] as $k => $v) {
|
|
$res .= "\n/$k $v";
|
|
}
|
|
|
|
$res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
|
|
}
|
|
|
|
$res .= "\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param $id
|
|
* @param $action
|
|
* @return string|null
|
|
*/
|
|
protected function o_embedjs($id, $action)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = [
|
|
't' => 'embedjs',
|
|
'info' => [
|
|
'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
|
|
]
|
|
];
|
|
break;
|
|
|
|
case 'out':
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<< ";
|
|
foreach ($o['info'] as $k => $v) {
|
|
$res .= "\n/$k $v";
|
|
}
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $code
|
|
* @return null|string
|
|
*/
|
|
protected function o_javascript($id, $action, $code = '')
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = [
|
|
't' => 'javascript',
|
|
'info' => [
|
|
'S' => '/JavaScript',
|
|
'JS' => '(' . $this->filterText($code, true, false) . ')',
|
|
]
|
|
];
|
|
break;
|
|
|
|
case 'out':
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<< ";
|
|
|
|
foreach ($o['info'] as $k => $v) {
|
|
$res .= "\n/$k $v";
|
|
}
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* an image object, will be an XObject in the document, includes description and data
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_image($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
// make the new object
|
|
$this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
|
|
|
|
$info =& $this->objects[$id]['info'];
|
|
|
|
$info['Type'] = '/XObject';
|
|
$info['Subtype'] = '/Image';
|
|
$info['Width'] = $options['iw'];
|
|
$info['Height'] = $options['ih'];
|
|
|
|
if (isset($options['masked']) && $options['masked']) {
|
|
$info['SMask'] = ($this->numObj - 1) . ' 0 R';
|
|
}
|
|
|
|
if (!isset($options['type']) || $options['type'] === 'jpg') {
|
|
if (!isset($options['channels'])) {
|
|
$options['channels'] = 3;
|
|
}
|
|
|
|
switch ($options['channels']) {
|
|
case 1:
|
|
$info['ColorSpace'] = '/DeviceGray';
|
|
break;
|
|
case 4:
|
|
$info['ColorSpace'] = '/DeviceCMYK';
|
|
break;
|
|
default:
|
|
$info['ColorSpace'] = '/DeviceRGB';
|
|
break;
|
|
}
|
|
|
|
if ($info['ColorSpace'] === '/DeviceCMYK') {
|
|
$info['Decode'] = '[1 0 1 0 1 0 1 0]';
|
|
}
|
|
|
|
$info['Filter'] = '/DCTDecode';
|
|
$info['BitsPerComponent'] = 8;
|
|
} else {
|
|
if ($options['type'] === 'png') {
|
|
$info['Filter'] = '/FlateDecode';
|
|
$info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
|
|
|
|
if ($options['isMask']) {
|
|
$info['ColorSpace'] = '/DeviceGray';
|
|
} else {
|
|
if (mb_strlen($options['pdata'], '8bit')) {
|
|
$tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
|
|
$this->numObj++;
|
|
$this->o_contents($this->numObj, 'new');
|
|
$this->objects[$this->numObj]['c'] = $options['pdata'];
|
|
$tmp .= $this->numObj . ' 0 R';
|
|
$tmp .= ' ]';
|
|
$info['ColorSpace'] = $tmp;
|
|
|
|
if (isset($options['transparency'])) {
|
|
$transparency = $options['transparency'];
|
|
switch ($transparency['type']) {
|
|
case 'indexed':
|
|
$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
|
|
$info['Mask'] = $tmp;
|
|
break;
|
|
|
|
case 'color-key':
|
|
$tmp = ' [ ' .
|
|
$transparency['r'] . ' ' . $transparency['r'] .
|
|
$transparency['g'] . ' ' . $transparency['g'] .
|
|
$transparency['b'] . ' ' . $transparency['b'] .
|
|
' ] ';
|
|
$info['Mask'] = $tmp;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
if (isset($options['transparency'])) {
|
|
$transparency = $options['transparency'];
|
|
|
|
switch ($transparency['type']) {
|
|
case 'indexed':
|
|
$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
|
|
$info['Mask'] = $tmp;
|
|
break;
|
|
|
|
case 'color-key':
|
|
$tmp = ' [ ' .
|
|
$transparency['r'] . ' ' . $transparency['r'] . ' ' .
|
|
$transparency['g'] . ' ' . $transparency['g'] . ' ' .
|
|
$transparency['b'] . ' ' . $transparency['b'] .
|
|
' ] ';
|
|
$info['Mask'] = $tmp;
|
|
break;
|
|
}
|
|
}
|
|
$info['ColorSpace'] = '/' . $options['color'];
|
|
}
|
|
}
|
|
|
|
$info['BitsPerComponent'] = $options['bitsPerComponent'];
|
|
}
|
|
}
|
|
|
|
// assign it a place in the named resource dictionary as an external object, according to
|
|
// the label passed in with it.
|
|
$this->o_pages($this->currentNode, 'xObject', ['label' => $options['label'], 'objNum' => $id]);
|
|
|
|
// also make sure that we have the right procset object for it.
|
|
$this->o_procset($this->procsetObjectId, 'add', 'ImageC');
|
|
break;
|
|
|
|
case 'out':
|
|
$o = &$this->objects[$id];
|
|
$tmp = &$o['data'];
|
|
$res = "\n$id 0 obj\n<<";
|
|
|
|
foreach ($o['info'] as $k => $v) {
|
|
$res .= "\n/$k $v";
|
|
}
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$tmp = $this->ARC4($tmp);
|
|
}
|
|
|
|
$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* graphics state object
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_extGState($id, $action, $options = "")
|
|
{
|
|
static $valid_params = [
|
|
"LW",
|
|
"LC",
|
|
"LC",
|
|
"LJ",
|
|
"ML",
|
|
"D",
|
|
"RI",
|
|
"OP",
|
|
"op",
|
|
"OPM",
|
|
"Font",
|
|
"BG",
|
|
"BG2",
|
|
"UCR",
|
|
"TR",
|
|
"TR2",
|
|
"HT",
|
|
"FL",
|
|
"SM",
|
|
"SA",
|
|
"BM",
|
|
"SMask",
|
|
"CA",
|
|
"ca",
|
|
"AIS",
|
|
"TK"
|
|
];
|
|
|
|
switch ($action) {
|
|
case "new":
|
|
$this->objects[$id] = ['t' => 'extGState', 'info' => $options];
|
|
|
|
// Tell the pages about the new resource
|
|
$this->numStates++;
|
|
$this->o_pages($this->currentNode, 'extGState', ["objNum" => $id, "stateNum" => $this->numStates]);
|
|
break;
|
|
|
|
case "out":
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<< /Type /ExtGState\n";
|
|
|
|
foreach ($o["info"] as $k => $v) {
|
|
if (!in_array($k, $valid_params)) {
|
|
continue;
|
|
}
|
|
$res .= "/$k $v\n";
|
|
}
|
|
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param integer $id
|
|
* @param string $action
|
|
* @param mixed $options
|
|
* @return string
|
|
*/
|
|
protected function o_xobject($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'xobject', 'info' => $options, 'c' => ''];
|
|
break;
|
|
|
|
case 'procset':
|
|
$this->objects[$id]['procset'] = $options;
|
|
break;
|
|
|
|
case 'font':
|
|
$this->objects[$id]['fonts'][$options['fontNum']] = [
|
|
'objNum' => $options['objNum'],
|
|
'fontNum' => $options['fontNum']
|
|
];
|
|
break;
|
|
|
|
case 'xObject':
|
|
$this->objects[$id]['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
|
|
break;
|
|
|
|
case 'out':
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<< /Type /XObject\n";
|
|
|
|
foreach ($o["info"] as $k => $v) {
|
|
switch($k)
|
|
{
|
|
case 'Subtype':
|
|
$res .= "/Subtype /$v\n";
|
|
break;
|
|
case 'bbox':
|
|
$res .= "/BBox [";
|
|
foreach ($v as $value) {
|
|
$res .= sprintf("%.4F ", $value);
|
|
}
|
|
$res .= "]\n";
|
|
break;
|
|
default:
|
|
$res .= "/$k $v\n";
|
|
break;
|
|
}
|
|
}
|
|
$res .= "/Matrix[1.0 0.0 0.0 1.0 0.0 0.0]\n";
|
|
|
|
$res .= "/Resources <<";
|
|
if (isset($o['procset'])) {
|
|
$res .= "\n/ProcSet " . $o['procset'] . " 0 R";
|
|
} else {
|
|
$res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
|
|
}
|
|
if (isset($o['fonts']) && count($o['fonts'])) {
|
|
$res .= "\n/Font << ";
|
|
foreach ($o['fonts'] as $finfo) {
|
|
$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
|
|
}
|
|
$res .= "\n>>";
|
|
}
|
|
if (isset($o['xObjects']) && count($o['xObjects'])) {
|
|
$res .= "\n/XObject << ";
|
|
foreach ($o['xObjects'] as $finfo) {
|
|
$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
|
|
}
|
|
$res .= "\n>>";
|
|
}
|
|
$res .= "\n>>\n";
|
|
|
|
$tmp = $o["c"];
|
|
if ($this->compressionReady && $this->options['compression']) {
|
|
// then implement ZLIB based compression on this content stream
|
|
$res .= " /Filter /FlateDecode\n";
|
|
$tmp = gzcompress($tmp, 6);
|
|
}
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$tmp = $this->ARC4($tmp);
|
|
}
|
|
|
|
$res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
|
|
$res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";;
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_acroform($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case "new":
|
|
$this->o_catalog($this->catalogId, 'acroform', $id);
|
|
$this->objects[$id] = array('t' => 'acroform', 'info' => $options);
|
|
break;
|
|
|
|
case 'addfield':
|
|
$this->objects[$id]['info']['Fields'][] = $options;
|
|
break;
|
|
|
|
case 'font':
|
|
$this->objects[$id]['fonts'][$options['fontNum']] = [
|
|
'objNum' => $options['objNum'],
|
|
'fontNum' => $options['fontNum']
|
|
];
|
|
break;
|
|
|
|
case "out":
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<<";
|
|
|
|
foreach ($o["info"] as $k => $v) {
|
|
switch($k) {
|
|
case 'Fields':
|
|
$res .= " /Fields [";
|
|
foreach ($v as $i) {
|
|
$res .= "$i 0 R ";
|
|
}
|
|
$res .= "]\n";
|
|
break;
|
|
default:
|
|
$res .= "/$k $v\n";
|
|
}
|
|
}
|
|
|
|
$res .= "/DR <<\n";
|
|
if (isset($o['fonts']) && count($o['fonts'])) {
|
|
$res .= "/Font << \n";
|
|
foreach ($o['fonts'] as $finfo) {
|
|
$res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
|
|
}
|
|
$res .= ">>\n";
|
|
}
|
|
$res .= ">>\n";
|
|
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param $id
|
|
* @param $action
|
|
* @param mixed $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_field($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case "new":
|
|
$this->o_page($options['pageid'], 'annot', $id);
|
|
$this->o_acroform($this->acroFormId, 'addfield', $id);
|
|
$this->objects[$id] = ['t' => 'field', 'info' => $options];
|
|
break;
|
|
|
|
case 'set':
|
|
$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
|
|
break;
|
|
|
|
case "out":
|
|
$o = &$this->objects[$id];
|
|
$res = "\n$id 0 obj\n<< /Type /Annot /Subtype /Widget \n";
|
|
|
|
$encrypted = $this->encrypted;
|
|
if ($encrypted) {
|
|
$this->encryptInit($id);
|
|
}
|
|
|
|
foreach ($o["info"] as $k => $v) {
|
|
switch ($k) {
|
|
case 'pageid':
|
|
$res .= "/P $v 0 R\n";
|
|
break;
|
|
case 'value':
|
|
if ($encrypted) {
|
|
$v = $this->filterText($this->ARC4($v), false, false);
|
|
}
|
|
$res .= "/V ($v)\n";
|
|
break;
|
|
case 'refvalue':
|
|
$res .= "/V $v 0 R\n";
|
|
break;
|
|
case 'da':
|
|
if ($encrypted) {
|
|
$v = $this->filterText($this->ARC4($v), false, false);
|
|
}
|
|
$res .= "/DA ($v)\n";
|
|
break;
|
|
case 'options':
|
|
$res .= "/Opt [\n";
|
|
foreach ($v as $opt) {
|
|
if ($encrypted) {
|
|
$opt = $this->filterText($this->ARC4($opt), false, false);
|
|
}
|
|
$res .= "($opt)\n";
|
|
}
|
|
$res .= "]\n";
|
|
break;
|
|
case 'rect':
|
|
$res .= "/Rect [";
|
|
foreach ($v as $value) {
|
|
$res .= sprintf("%.4F ", $value);
|
|
}
|
|
$res .= "]\n";
|
|
break;
|
|
case 'appearance':
|
|
$res .= "/AP << ";
|
|
foreach ($v as $a => $ref) {
|
|
$res .= "/$a $ref 0 R ";
|
|
}
|
|
$res .= ">>\n";
|
|
break;
|
|
case 'T':
|
|
if($encrypted) {
|
|
$v = $this->filterText($this->ARC4($v), false, false);
|
|
}
|
|
$res .= "/T ($v)\n";
|
|
break;
|
|
default:
|
|
$res .= "/$k $v\n";
|
|
}
|
|
|
|
}
|
|
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return null|string
|
|
*/
|
|
protected function o_sig($id, $action, $options = '')
|
|
{
|
|
$sign_maxlen = $this->signatureMaxLen;
|
|
|
|
switch ($action) {
|
|
case "new":
|
|
$this->objects[$id] = array('t' => 'sig', 'info' => $options);
|
|
$this->byteRange[$id] = ['t' => 'sig'];
|
|
break;
|
|
|
|
case 'byterange':
|
|
$o = &$this->objects[$id];
|
|
$content =& $options['content'];
|
|
$content_len = strlen($content);
|
|
$pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
|
|
$len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
|
|
$rangeStartPos = $pos + $len + 1 + 10; // before '<'
|
|
$content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos ), $len, ' ', STR_PAD_RIGHT), $pos, $len);
|
|
|
|
$fuid = uniqid();
|
|
$tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
|
|
$tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
|
|
|
|
if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
|
|
throw new \Exception("Unable to write temporary file for signing.");
|
|
}
|
|
if (file_put_contents($tmpInput, substr($content, $rangeStartPos + 2 + $sign_maxlen),
|
|
FILE_APPEND) === false) {
|
|
throw new \Exception("Unable to write temporary file for signing.");
|
|
}
|
|
|
|
if (openssl_pkcs7_sign($tmpInput, $tmpOutput,
|
|
$o['info']['SignCert'],
|
|
array($o['info']['PrivKey'], $o['info']['Password']),
|
|
array(), PKCS7_BINARY | PKCS7_DETACHED) === false) {
|
|
throw new \Exception("Failed to prepare signature.");
|
|
}
|
|
|
|
$signature = file_get_contents($tmpOutput);
|
|
|
|
unlink($tmpInput);
|
|
unlink($tmpOutput);
|
|
|
|
$sign = substr($signature, (strpos($signature, "%%EOF\n\n------") + 13));
|
|
list($head, $signature) = explode("\n\n", $sign);
|
|
|
|
$signature = base64_decode(trim($signature));
|
|
|
|
$signature = current(unpack('H*', $signature));
|
|
$signature = str_pad($signature, $sign_maxlen, '0');
|
|
$siglen = strlen($signature);
|
|
if (strlen($signature) > $sign_maxlen) {
|
|
throw new \Exception("Signature length ($siglen) exceeds the $sign_maxlen limit.");
|
|
}
|
|
|
|
$content = substr_replace($content, $signature, $rangeStartPos + 1, $sign_maxlen);
|
|
break;
|
|
|
|
case "out":
|
|
$res = "\n$id 0 obj\n<<\n";
|
|
|
|
$encrypted = $this->encrypted;
|
|
if ($encrypted) {
|
|
$this->encryptInit($id);
|
|
}
|
|
|
|
$res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
|
|
$res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
|
|
$res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
|
|
$res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
|
|
|
|
$date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
|
|
if ($encrypted) {
|
|
$date = $this->ARC4($date);
|
|
}
|
|
|
|
$res .= "/M ($date)\n";
|
|
$res .= "/Prop_Build << /App << /Name /DomPDF >> /Filter << /Name /Adobe.PPKLite >> >>\n";
|
|
|
|
$o = &$this->objects[$id];
|
|
foreach ($o['info'] as $k => $v) {
|
|
switch($k) {
|
|
case 'Name':
|
|
case 'Location':
|
|
case 'Reason':
|
|
case 'ContactInfo':
|
|
if ($v !== null && $v !== '') {
|
|
$res .= "/$k (" .
|
|
($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
$res .= ">>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* encryption object.
|
|
*
|
|
* @param $id
|
|
* @param $action
|
|
* @param string $options
|
|
* @return string|null
|
|
*/
|
|
protected function o_encryption($id, $action, $options = '')
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
// make the new object
|
|
$this->objects[$id] = ['t' => 'encryption', 'info' => $options];
|
|
$this->arc4_objnum = $id;
|
|
break;
|
|
|
|
case 'keys':
|
|
// figure out the additional parameters required
|
|
$pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
|
|
. chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
|
|
. chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
|
|
. chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
|
|
|
|
$info = $this->objects[$id]['info'];
|
|
|
|
$len = mb_strlen($info['owner'], '8bit');
|
|
|
|
if ($len > 32) {
|
|
$owner = substr($info['owner'], 0, 32);
|
|
} else {
|
|
if ($len < 32) {
|
|
$owner = $info['owner'] . substr($pad, 0, 32 - $len);
|
|
} else {
|
|
$owner = $info['owner'];
|
|
}
|
|
}
|
|
|
|
$len = mb_strlen($info['user'], '8bit');
|
|
if ($len > 32) {
|
|
$user = substr($info['user'], 0, 32);
|
|
} else {
|
|
if ($len < 32) {
|
|
$user = $info['user'] . substr($pad, 0, 32 - $len);
|
|
} else {
|
|
$user = $info['user'];
|
|
}
|
|
}
|
|
|
|
$tmp = $this->md5_16($owner);
|
|
$okey = substr($tmp, 0, 5);
|
|
$this->ARC4_init($okey);
|
|
$ovalue = $this->ARC4($user);
|
|
$this->objects[$id]['info']['O'] = $ovalue;
|
|
|
|
// now make the u value, phew.
|
|
$tmp = $this->md5_16(
|
|
$user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
|
|
);
|
|
|
|
$ukey = substr($tmp, 0, 5);
|
|
$this->ARC4_init($ukey);
|
|
$this->encryptionKey = $ukey;
|
|
$this->encrypted = true;
|
|
$uvalue = $this->ARC4($pad);
|
|
$this->objects[$id]['info']['U'] = $uvalue;
|
|
// initialize the arc4 array
|
|
break;
|
|
|
|
case 'out':
|
|
$o = &$this->objects[$id];
|
|
|
|
$res = "\n$id 0 obj\n<<";
|
|
$res .= "\n/Filter /Standard";
|
|
$res .= "\n/V 1";
|
|
$res .= "\n/R 2";
|
|
$res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
|
|
$res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
|
|
// and the p-value needs to be converted to account for the twos-complement approach
|
|
$o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
|
|
$res .= "\n/P " . ($o['info']['p']);
|
|
$res .= "\n>>\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected function o_indirect_references($id, $action, $options = null)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
case 'add':
|
|
if ($id === 0) {
|
|
$id = ++$this->numObj;
|
|
$this->o_catalog($this->catalogId, 'names', $id);
|
|
$this->objects[$id] = ['t' => 'indirect_references', 'info' => $options];
|
|
$this->indirectReferenceId = $id;
|
|
} else {
|
|
$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
|
|
}
|
|
break;
|
|
case 'out':
|
|
$res = "\n$id 0 obj << ";
|
|
|
|
foreach($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
|
|
$res .= "/$referenceObjName $referenceObjId 0 R ";
|
|
}
|
|
|
|
$res .= ">> endobj";
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected function o_names($id, $action, $options = null)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
case 'add':
|
|
if ($id === 0) {
|
|
$id = ++$this->numObj;
|
|
$this->objects[$id] = ['t' => 'names', 'info' => [$options]];
|
|
$this->o_indirect_references($this->indirectReferenceId, 'add', ['EmbeddedFiles' => $id]);
|
|
$this->embeddedFilesId = $id;
|
|
} else {
|
|
$this->objects[$id]['info'][] = $options;
|
|
}
|
|
break;
|
|
case 'out':
|
|
$info = &$this->objects[$id]['info'];
|
|
$res = '';
|
|
if (count($info) > 0) {
|
|
$res = "\n$id 0 obj << /Names [ ";
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
}
|
|
|
|
foreach ($info as $entry) {
|
|
if ($this->encrypted) {
|
|
$filename = $this->ARC4($entry['filename']);
|
|
} else {
|
|
$filename = $entry['filename'];
|
|
}
|
|
|
|
$res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
|
|
}
|
|
|
|
$res .= "] >> endobj";
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected function o_embedded_file_dictionary($id, $action, $options = null)
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$embeddedFileId = ++$this->numObj;
|
|
$options['embedded_reference'] = $embeddedFileId;
|
|
$this->objects[$id] = ['t' => 'embedded_file_dictionary', 'info' => $options];
|
|
$this->o_embedded_file($embeddedFileId, 'new', $options);
|
|
$options['dict_reference'] = $id;
|
|
$this->o_names($this->embeddedFilesId, 'add', $options);
|
|
break;
|
|
case 'out':
|
|
$info = &$this->objects[$id]['info'];
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$filename = $this->ARC4($info['filename']);
|
|
$description = $this->ARC4($info['description']);
|
|
} else {
|
|
$filename = $info['filename'];
|
|
$description = $info['description'];
|
|
}
|
|
|
|
$res = "\n$id 0 obj <</Type /Filespec /EF";
|
|
$res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
|
|
$res .= " /F ($filename) /UF ($filename) /Desc ($description)";
|
|
$res .= " >> endobj";
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected function o_embedded_file($id, $action, $options = null): ?string
|
|
{
|
|
switch ($action) {
|
|
case 'new':
|
|
$this->objects[$id] = ['t' => 'embedded_file', 'info' => $options];
|
|
break;
|
|
case 'out':
|
|
$info = &$this->objects[$id]['info'];
|
|
|
|
if ($this->compressionReady) {
|
|
$filepath = $info['filepath'];
|
|
$checksum = md5_file($filepath);
|
|
$f = fopen($filepath, "rb");
|
|
|
|
$file_content_compressed = '';
|
|
$deflateContext = deflate_init(ZLIB_ENCODING_DEFLATE, ['level' => 6]);
|
|
while (($block = fread($f, 8192))) {
|
|
$file_content_compressed .= deflate_add($deflateContext, $block, ZLIB_NO_FLUSH);
|
|
}
|
|
$file_content_compressed .= deflate_add($deflateContext, '', ZLIB_FINISH);
|
|
$file_size_uncompressed = ftell($f);
|
|
fclose($f);
|
|
} else {
|
|
$file_content = file_get_contents($info['filepath']);
|
|
$file_size_uncompressed = mb_strlen($file_content, '8bit');
|
|
$checksum = md5($file_content);
|
|
}
|
|
|
|
if ($this->encrypted) {
|
|
$this->encryptInit($id);
|
|
$checksum = $this->ARC4($checksum);
|
|
$file_content_compressed = $this->ARC4($file_content_compressed);
|
|
}
|
|
$file_size_compressed = mb_strlen($file_content_compressed, '8bit');
|
|
|
|
$res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
|
|
" /Type/EmbeddedFile /Filter/FlateDecode" .
|
|
" /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
|
|
|
|
return $res;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* ARC4 functions
|
|
* A series of function to implement ARC4 encoding in PHP
|
|
*/
|
|
|
|
/**
|
|
* calculate the 16 byte version of the 128 bit md5 digest of the string
|
|
*
|
|
* @param $string
|
|
* @return string
|
|
*/
|
|
function md5_16($string)
|
|
{
|
|
$tmp = md5($string);
|
|
$out = '';
|
|
for ($i = 0; $i <= 30; $i = $i + 2) {
|
|
$out .= chr(hexdec(substr($tmp, $i, 2)));
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* initialize the encryption for processing a particular object
|
|
*
|
|
* @param $id
|
|
*/
|
|
function encryptInit($id)
|
|
{
|
|
$tmp = $this->encryptionKey;
|
|
$hex = dechex($id);
|
|
if (mb_strlen($hex, '8bit') < 6) {
|
|
$hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
|
|
}
|
|
$tmp .= chr(hexdec(substr($hex, 4, 2)))
|
|
. chr(hexdec(substr($hex, 2, 2)))
|
|
. chr(hexdec(substr($hex, 0, 2)))
|
|
. chr(0)
|
|
. chr(0)
|
|
;
|
|
$key = $this->md5_16($tmp);
|
|
$this->ARC4_init(substr($key, 0, 10));
|
|
}
|
|
|
|
/**
|
|
* initialize the ARC4 encryption
|
|
*
|
|
* @param string $key
|
|
*/
|
|
function ARC4_init($key = '')
|
|
{
|
|
$this->arc4 = '';
|
|
|
|
// setup the control array
|
|
if (mb_strlen($key, '8bit') == 0) {
|
|
return;
|
|
}
|
|
|
|
$k = '';
|
|
while (mb_strlen($k, '8bit') < 256) {
|
|
$k .= $key;
|
|
}
|
|
|
|
$k = substr($k, 0, 256);
|
|
for ($i = 0; $i < 256; $i++) {
|
|
$this->arc4 .= chr($i);
|
|
}
|
|
|
|
$j = 0;
|
|
|
|
for ($i = 0; $i < 256; $i++) {
|
|
$t = $this->arc4[$i];
|
|
$j = ($j + ord($t) + ord($k[$i])) % 256;
|
|
$this->arc4[$i] = $this->arc4[$j];
|
|
$this->arc4[$j] = $t;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ARC4 encrypt a text string
|
|
*
|
|
* @param $text
|
|
* @return string
|
|
*/
|
|
function ARC4($text)
|
|
{
|
|
$len = mb_strlen($text, '8bit');
|
|
$a = 0;
|
|
$b = 0;
|
|
$c = $this->arc4;
|
|
$out = '';
|
|
for ($i = 0; $i < $len; $i++) {
|
|
$a = ($a + 1) % 256;
|
|
$t = $c[$a];
|
|
$b = ($b + ord($t)) % 256;
|
|
$c[$a] = $c[$b];
|
|
$c[$b] = $t;
|
|
$k = ord($c[(ord($c[$a]) + ord($c[$b])) % 256]);
|
|
$out .= chr(ord($text[$i]) ^ $k);
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* functions which can be called to adjust or add to the document
|
|
*/
|
|
|
|
/**
|
|
* add a link in the document to an external URL
|
|
*
|
|
* @param $url
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $x1
|
|
* @param $y1
|
|
*/
|
|
function addLink($url, $x0, $y0, $x1, $y1)
|
|
{
|
|
$this->numObj++;
|
|
$info = ['type' => 'link', 'url' => $url, 'rect' => [$x0, $y0, $x1, $y1]];
|
|
$this->o_annotation($this->numObj, 'new', $info);
|
|
}
|
|
|
|
/**
|
|
* add a link in the document to an internal destination (ie. within the document)
|
|
*
|
|
* @param $label
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $x1
|
|
* @param $y1
|
|
*/
|
|
function addInternalLink($label, $x0, $y0, $x1, $y1)
|
|
{
|
|
$this->numObj++;
|
|
$info = ['type' => 'ilink', 'label' => $label, 'rect' => [$x0, $y0, $x1, $y1]];
|
|
$this->o_annotation($this->numObj, 'new', $info);
|
|
}
|
|
|
|
/**
|
|
* set the encryption of the document
|
|
* can be used to turn it on and/or set the passwords which it will have.
|
|
* also the functions that the user will have are set here, such as print, modify, add
|
|
*
|
|
* @param string $userPass
|
|
* @param string $ownerPass
|
|
* @param array $pc
|
|
*/
|
|
function setEncryption($userPass = '', $ownerPass = '', $pc = [])
|
|
{
|
|
$p = bindec("11000000");
|
|
|
|
$options = ['print' => 4, 'modify' => 8, 'copy' => 16, 'add' => 32];
|
|
|
|
foreach ($pc as $k => $v) {
|
|
if ($v && isset($options[$k])) {
|
|
$p += $options[$k];
|
|
} else {
|
|
if (isset($options[$v])) {
|
|
$p += $options[$v];
|
|
}
|
|
}
|
|
}
|
|
|
|
// implement encryption on the document
|
|
if ($this->arc4_objnum == 0) {
|
|
// then the block does not exist already, add it.
|
|
$this->numObj++;
|
|
if (mb_strlen($ownerPass) == 0) {
|
|
$ownerPass = $userPass;
|
|
}
|
|
|
|
$this->o_encryption($this->numObj, 'new', ['user' => $userPass, 'owner' => $ownerPass, 'p' => $p]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* should be used for internal checks, not implemented as yet
|
|
*/
|
|
function checkAllHere()
|
|
{
|
|
}
|
|
|
|
/**
|
|
* return the pdf stream as a string returned from the function
|
|
*
|
|
* @param bool $debug
|
|
* @return string
|
|
*/
|
|
function output($debug = false)
|
|
{
|
|
if ($debug) {
|
|
// turn compression off
|
|
$this->options['compression'] = false;
|
|
}
|
|
|
|
if ($this->javascript) {
|
|
$this->numObj++;
|
|
|
|
$js_id = $this->numObj;
|
|
$this->o_embedjs($js_id, 'new');
|
|
$this->o_javascript(++$this->numObj, 'new', $this->javascript);
|
|
|
|
$id = $this->catalogId;
|
|
|
|
$this->o_indirect_references($this->indirectReferenceId, 'add', ['JavaScript' => $js_id]);
|
|
}
|
|
|
|
if ($this->fileIdentifier === '') {
|
|
$tmp = implode('', $this->objects[$this->infoObject]['info']);
|
|
$this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
|
|
}
|
|
|
|
if ($this->arc4_objnum) {
|
|
$this->o_encryption($this->arc4_objnum, 'keys');
|
|
$this->ARC4_init($this->encryptionKey);
|
|
}
|
|
|
|
$this->checkAllHere();
|
|
|
|
$xref = [];
|
|
$content = '%PDF-1.7';
|
|
$pos = mb_strlen($content, '8bit');
|
|
|
|
// pre-process o_font objects before output of all objects
|
|
foreach ($this->objects as $k => $v) {
|
|
if ($v['t'] === 'font') {
|
|
$this->o_font($k, 'add');
|
|
}
|
|
}
|
|
|
|
foreach ($this->objects as $k => $v) {
|
|
$tmp = 'o_' . $v['t'];
|
|
$cont = $this->$tmp($k, 'out');
|
|
$content .= $cont;
|
|
$xref[] = $pos + 1; //+1 to account for \n at the start of each object
|
|
$pos += mb_strlen($cont, '8bit');
|
|
}
|
|
|
|
$content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
|
|
|
|
foreach ($xref as $p) {
|
|
$content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
|
|
}
|
|
|
|
$content .= "trailer\n<<\n" .
|
|
'/Size ' . (count($xref) + 1) . "\n" .
|
|
'/Root 1 0 R' . "\n" .
|
|
'/Info ' . $this->infoObject . " 0 R\n"
|
|
;
|
|
|
|
// if encryption has been applied to this document then add the marker for this dictionary
|
|
if ($this->arc4_objnum > 0) {
|
|
$content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
|
|
}
|
|
|
|
$content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
|
|
|
|
// account for \n added at start of xref table
|
|
$pos++;
|
|
|
|
$content .= ">>\nstartxref\n$pos\n%%EOF\n";
|
|
|
|
if (count($this->byteRange) > 0) {
|
|
foreach ($this->byteRange as $k => $v) {
|
|
$tmp = 'o_' . $v['t'];
|
|
$this->$tmp($k, 'byterange', ['content' => &$content]);
|
|
}
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* initialize a new document
|
|
* if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
|
|
* this function is called automatically by the constructor function
|
|
*
|
|
* @param array $pageSize
|
|
*/
|
|
private function newDocument($pageSize = [0, 0, 612, 792])
|
|
{
|
|
$this->numObj = 0;
|
|
$this->objects = [];
|
|
|
|
$this->numObj++;
|
|
$this->o_catalog($this->numObj, 'new');
|
|
|
|
$this->numObj++;
|
|
$this->o_outlines($this->numObj, 'new');
|
|
|
|
$this->numObj++;
|
|
$this->o_pages($this->numObj, 'new');
|
|
|
|
$this->o_pages($this->numObj, 'mediaBox', $pageSize);
|
|
$this->currentNode = 3;
|
|
|
|
$this->numObj++;
|
|
$this->o_procset($this->numObj, 'new');
|
|
|
|
$this->numObj++;
|
|
$this->o_info($this->numObj, 'new');
|
|
|
|
$this->numObj++;
|
|
$this->o_page($this->numObj, 'new');
|
|
|
|
// need to store the first page id as there is no way to get it to the user during
|
|
// startup
|
|
$this->firstPageId = $this->currentContents;
|
|
}
|
|
|
|
/**
|
|
* open the font file and return a php structure containing it.
|
|
* first check if this one has been done before and saved in a form more suited to php
|
|
* note that if a php serialized version does not exist it will try and make one, but will
|
|
* require write access to the directory to do it... it is MUCH faster to have these serialized
|
|
* files.
|
|
*
|
|
* @param $font
|
|
*/
|
|
private function openFont($font)
|
|
{
|
|
// assume that $font contains the path and file but not the extension
|
|
$name = basename($font);
|
|
$dir = dirname($font) . '/';
|
|
|
|
$fontcache = $this->fontcache;
|
|
if ($fontcache == '') {
|
|
$fontcache = rtrim($dir, DIRECTORY_SEPARATOR."/\\");
|
|
}
|
|
|
|
//$name filename without folder and extension of font metrics
|
|
//$dir folder of font metrics
|
|
//$fontcache folder of runtime created php serialized version of font metrics.
|
|
// If this is not given, the same folder as the font metrics will be used.
|
|
// Storing and reusing serialized versions improves speed much
|
|
|
|
$this->addMessage("openFont: $font - $name");
|
|
|
|
if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
|
|
$metrics_name = "$name.afm";
|
|
} else {
|
|
$metrics_name = "$name.ufm";
|
|
}
|
|
|
|
$cache_name = "$metrics_name.php";
|
|
$this->addMessage("metrics: $metrics_name, cache: $cache_name");
|
|
|
|
if (file_exists($fontcache . '/' . $cache_name)) {
|
|
$this->addMessage("openFont: php file exists $fontcache/$cache_name");
|
|
$this->fonts[$font] = require($fontcache . '/' . $cache_name);
|
|
|
|
if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_'] != $this->fontcacheVersion) {
|
|
// if the font file is old, then clear it out and prepare for re-creation
|
|
$this->addMessage('openFont: clear out, make way for new version.');
|
|
$this->fonts[$font] = null;
|
|
unset($this->fonts[$font]);
|
|
}
|
|
} else {
|
|
$old_cache_name = "php_$metrics_name";
|
|
if (file_exists($fontcache . '/' . $old_cache_name)) {
|
|
$this->addMessage(
|
|
"openFont: php file doesn't exist $fontcache/$cache_name, creating it from the old format"
|
|
);
|
|
$old_cache = file_get_contents($fontcache . '/' . $old_cache_name);
|
|
file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . $old_cache . ';');
|
|
|
|
$this->openFont($font);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!isset($this->fonts[$font]) && file_exists($dir . $metrics_name)) {
|
|
// then rebuild the php_<font>.afm file from the <font>.afm file
|
|
$this->addMessage("openFont: build php file from $dir$metrics_name");
|
|
$data = [];
|
|
|
|
// 20 => 'space'
|
|
$data['codeToName'] = [];
|
|
|
|
// Since we're not going to enable Unicode for the core fonts we need to use a font-based
|
|
// setting for Unicode support rather than a global setting.
|
|
$data['isUnicode'] = (strtolower(substr($metrics_name, -3)) !== 'afm');
|
|
|
|
$cidtogid = '';
|
|
if ($data['isUnicode']) {
|
|
$cidtogid = str_pad('', 256 * 256 * 2, "\x00");
|
|
}
|
|
|
|
$file = file($dir . $metrics_name);
|
|
|
|
foreach ($file as $rowA) {
|
|
$row = trim($rowA);
|
|
$pos = strpos($row, ' ');
|
|
|
|
if ($pos) {
|
|
// then there must be some keyword
|
|
$key = substr($row, 0, $pos);
|
|
switch ($key) {
|
|
case 'FontName':
|
|
case 'FullName':
|
|
case 'FamilyName':
|
|
case 'PostScriptName':
|
|
case 'Weight':
|
|
case 'ItalicAngle':
|
|
case 'IsFixedPitch':
|
|
case 'CharacterSet':
|
|
case 'UnderlinePosition':
|
|
case 'UnderlineThickness':
|
|
case 'Version':
|
|
case 'EncodingScheme':
|
|
case 'CapHeight':
|
|
case 'XHeight':
|
|
case 'Ascender':
|
|
case 'Descender':
|
|
case 'StdHW':
|
|
case 'StdVW':
|
|
case 'StartCharMetrics':
|
|
case 'FontHeightOffset': // OAR - Added so we can offset the height calculation of a Windows font. Otherwise it's too big.
|
|
$data[$key] = trim(substr($row, $pos));
|
|
break;
|
|
|
|
case 'FontBBox':
|
|
$data[$key] = explode(' ', trim(substr($row, $pos)));
|
|
break;
|
|
|
|
//C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
|
|
case 'C': // Found in AFM files
|
|
$bits = explode(';', trim($row));
|
|
$dtmp = ['C' => null, 'N' => null, 'WX' => null, 'B' => []];
|
|
|
|
foreach ($bits as $bit) {
|
|
$bits2 = explode(' ', trim($bit));
|
|
if (mb_strlen($bits2[0], '8bit') == 0) {
|
|
continue;
|
|
}
|
|
|
|
if (count($bits2) > 2) {
|
|
$dtmp[$bits2[0]] = [];
|
|
for ($i = 1; $i < count($bits2); $i++) {
|
|
$dtmp[$bits2[0]][] = $bits2[$i];
|
|
}
|
|
} else {
|
|
if (count($bits2) == 2) {
|
|
$dtmp[$bits2[0]] = $bits2[1];
|
|
}
|
|
}
|
|
}
|
|
|
|
$c = (int)$dtmp['C'];
|
|
$n = $dtmp['N'];
|
|
$width = floatval($dtmp['WX']);
|
|
|
|
if ($c >= 0) {
|
|
if (!ctype_xdigit($n) || $c != hexdec($n)) {
|
|
$data['codeToName'][$c] = $n;
|
|
}
|
|
$data['C'][$c] = $width;
|
|
} elseif (isset($n)) {
|
|
$data['C'][$n] = $width;
|
|
}
|
|
|
|
if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
|
|
$data['MissingWidth'] = $width;
|
|
}
|
|
|
|
break;
|
|
|
|
// U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
|
|
case 'U': // Found in UFM files
|
|
if (!$data['isUnicode']) {
|
|
break;
|
|
}
|
|
|
|
$bits = explode(';', trim($row));
|
|
$dtmp = ['G' => null, 'N' => null, 'U' => null, 'WX' => null];
|
|
|
|
foreach ($bits as $bit) {
|
|
$bits2 = explode(' ', trim($bit));
|
|
if (mb_strlen($bits2[0], '8bit') === 0) {
|
|
continue;
|
|
}
|
|
|
|
if (count($bits2) > 2) {
|
|
$dtmp[$bits2[0]] = [];
|
|
for ($i = 1; $i < count($bits2); $i++) {
|
|
$dtmp[$bits2[0]][] = $bits2[$i];
|
|
}
|
|
} else {
|
|
if (count($bits2) == 2) {
|
|
$dtmp[$bits2[0]] = $bits2[1];
|
|
}
|
|
}
|
|
}
|
|
|
|
$c = (int)$dtmp['U'];
|
|
$n = $dtmp['N'];
|
|
$glyph = $dtmp['G'];
|
|
$width = floatval($dtmp['WX']);
|
|
|
|
if ($c >= 0) {
|
|
// Set values in CID to GID map
|
|
if ($c >= 0 && $c < 0xFFFF && $glyph) {
|
|
$cidtogid[$c * 2] = chr($glyph >> 8);
|
|
$cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
|
|
}
|
|
|
|
if (!ctype_xdigit($n) || $c != hexdec($n)) {
|
|
$data['codeToName'][$c] = $n;
|
|
}
|
|
$data['C'][$c] = $width;
|
|
} elseif (isset($n)) {
|
|
$data['C'][$n] = $width;
|
|
}
|
|
|
|
if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
|
|
$data['MissingWidth'] = $width;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'KPX':
|
|
break; // don't include them as they are not used yet
|
|
//KPX Adieresis yacute -40
|
|
/*$bits = explode(' ', trim($row));
|
|
$data['KPX'][$bits[1]][$bits[2]] = $bits[3];
|
|
break;*/
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($this->compressionReady && $this->options['compression']) {
|
|
// then implement ZLIB based compression on CIDtoGID string
|
|
$data['CIDtoGID_Compressed'] = true;
|
|
$cidtogid = gzcompress($cidtogid, 6);
|
|
}
|
|
$data['CIDtoGID'] = base64_encode($cidtogid);
|
|
$data['_version_'] = $this->fontcacheVersion;
|
|
$this->fonts[$font] = $data;
|
|
|
|
//Because of potential trouble with php safe mode, expect that the folder already exists.
|
|
//If not existing, this will hit performance because of missing cached results.
|
|
if (is_dir($fontcache) && is_writable($fontcache)) {
|
|
file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . var_export($data, true) . ';');
|
|
}
|
|
$data = null;
|
|
}
|
|
|
|
if (!isset($this->fonts[$font])) {
|
|
$this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
|
|
}
|
|
|
|
//pre_r($this->messages);
|
|
}
|
|
|
|
/**
|
|
* if the font is not loaded then load it and make the required object
|
|
* else just make it the current font
|
|
* the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
|
|
* note that encoding='none' will need to be used for symbolic fonts
|
|
* and 'differences' => an array of mappings between numbers 0->255 and character names.
|
|
*
|
|
* @param $fontName
|
|
* @param string $encoding
|
|
* @param bool $set
|
|
* @param bool $isSubsetting
|
|
* @return int
|
|
* @throws FontNotFoundException
|
|
*/
|
|
function selectFont($fontName, $encoding = '', $set = true, $isSubsetting = true)
|
|
{
|
|
$ext = substr($fontName, -4);
|
|
if ($ext === '.afm' || $ext === '.ufm') {
|
|
$fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
|
|
}
|
|
|
|
if (!isset($this->fonts[$fontName])) {
|
|
$this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
|
|
|
|
// load the file
|
|
$this->openFont($fontName);
|
|
|
|
if (isset($this->fonts[$fontName])) {
|
|
$this->numObj++;
|
|
$this->numFonts++;
|
|
|
|
$font = &$this->fonts[$fontName];
|
|
|
|
$name = basename($fontName);
|
|
$options = ['name' => $name, 'fontFileName' => $fontName, 'isSubsetting' => $isSubsetting];
|
|
|
|
if (is_array($encoding)) {
|
|
// then encoding and differences might be set
|
|
if (isset($encoding['encoding'])) {
|
|
$options['encoding'] = $encoding['encoding'];
|
|
}
|
|
|
|
if (isset($encoding['differences'])) {
|
|
$options['differences'] = $encoding['differences'];
|
|
}
|
|
} else {
|
|
if (mb_strlen($encoding, '8bit')) {
|
|
// then perhaps only the encoding has been set
|
|
$options['encoding'] = $encoding;
|
|
}
|
|
}
|
|
|
|
$this->o_font($this->numObj, 'new', $options);
|
|
|
|
if (file_exists("$fontName.ttf")) {
|
|
$fileSuffix = 'ttf';
|
|
} elseif (file_exists("$fontName.TTF")) {
|
|
$fileSuffix = 'TTF';
|
|
} elseif (file_exists("$fontName.pfb")) {
|
|
$fileSuffix = 'pfb';
|
|
} elseif (file_exists("$fontName.PFB")) {
|
|
$fileSuffix = 'PFB';
|
|
} else {
|
|
$fileSuffix = '';
|
|
}
|
|
|
|
$font['fileSuffix'] = $fileSuffix;
|
|
|
|
$font['fontNum'] = $this->numFonts;
|
|
$font['isSubsetting'] = $isSubsetting && $font['isUnicode'] && strtolower($fileSuffix) === 'ttf';
|
|
|
|
// also set the differences here, note that this means that these will take effect only the
|
|
//first time that a font is selected, else they are ignored
|
|
if (isset($options['differences'])) {
|
|
$font['differences'] = $options['differences'];
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($set && isset($this->fonts[$fontName])) {
|
|
// so if for some reason the font was not set in the last one then it will not be selected
|
|
$this->currentBaseFont = $fontName;
|
|
|
|
// the next lines mean that if a new font is selected, then the current text state will be
|
|
// applied to it as well.
|
|
$this->currentFont = $this->currentBaseFont;
|
|
$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
|
|
}
|
|
|
|
return $this->currentFontNum;
|
|
}
|
|
|
|
/**
|
|
* sets up the current font, based on the font families, and the current text state
|
|
* note that this system is quite flexible, a bold-italic font can be completely different to a
|
|
* italic-bold font, and even bold-bold will have to be defined within the family to have meaning
|
|
* This function is to be called whenever the currentTextState is changed, it will update
|
|
* the currentFont setting to whatever the appropriate family one is.
|
|
* If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
|
|
* This function will change the currentFont to whatever it should be, but will not change the
|
|
* currentBaseFont.
|
|
*/
|
|
private function setCurrentFont()
|
|
{
|
|
// if (strlen($this->currentBaseFont) == 0){
|
|
// // then assume an initial font
|
|
// $this->selectFont($this->defaultFont);
|
|
// }
|
|
// $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
|
|
// if (strlen($this->currentTextState)
|
|
// && isset($this->fontFamilies[$cf])
|
|
// && isset($this->fontFamilies[$cf][$this->currentTextState])){
|
|
// // then we are in some state or another
|
|
// // and this font has a family, and the current setting exists within it
|
|
// // select the font, then return it
|
|
// $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
|
|
// $this->selectFont($nf,'',0);
|
|
// $this->currentFont = $nf;
|
|
// $this->currentFontNum = $this->fonts[$nf]['fontNum'];
|
|
// } else {
|
|
// // the this font must not have the right family member for the current state
|
|
// // simply assume the base font
|
|
$this->currentFont = $this->currentBaseFont;
|
|
$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
|
|
// }
|
|
}
|
|
|
|
/**
|
|
* function for the user to find out what the ID is of the first page that was created during
|
|
* startup - useful if they wish to add something to it later.
|
|
*
|
|
* @return int
|
|
*/
|
|
function getFirstPageId()
|
|
{
|
|
return $this->firstPageId;
|
|
}
|
|
|
|
/**
|
|
* add content to the currently active object
|
|
*
|
|
* @param $content
|
|
*/
|
|
private function addContent($content)
|
|
{
|
|
$this->objects[$this->currentContents]['c'] .= $content;
|
|
}
|
|
|
|
/**
|
|
* sets the color for fill operations
|
|
*
|
|
* @param $color
|
|
* @param bool $force
|
|
*/
|
|
function setColor($color, $force = false)
|
|
{
|
|
$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
|
|
|
|
if (!$force && $this->currentColor == $new_color) {
|
|
return;
|
|
}
|
|
|
|
if (isset($new_color[3])) {
|
|
$this->currentColor = $new_color;
|
|
$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F k", $this->currentColor));
|
|
} else {
|
|
if (isset($new_color[2])) {
|
|
$this->currentColor = $new_color;
|
|
$this->addContent(vsprintf("\n%.3F %.3F %.3F rg", $this->currentColor));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* sets the color for fill operations
|
|
*
|
|
* @param $fillRule
|
|
*/
|
|
function setFillRule($fillRule)
|
|
{
|
|
if (!in_array($fillRule, ["nonzero", "evenodd"])) {
|
|
return;
|
|
}
|
|
|
|
$this->fillRule = $fillRule;
|
|
}
|
|
|
|
/**
|
|
* sets the color for stroke operations
|
|
*
|
|
* @param $color
|
|
* @param bool $force
|
|
*/
|
|
function setStrokeColor($color, $force = false)
|
|
{
|
|
$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
|
|
|
|
if (!$force && $this->currentStrokeColor == $new_color) {
|
|
return;
|
|
}
|
|
|
|
if (isset($new_color[3])) {
|
|
$this->currentStrokeColor = $new_color;
|
|
$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F K", $this->currentStrokeColor));
|
|
} else {
|
|
if (isset($new_color[2])) {
|
|
$this->currentStrokeColor = $new_color;
|
|
$this->addContent(vsprintf("\n%.3F %.3F %.3F RG", $this->currentStrokeColor));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the graphics state for compositions
|
|
*
|
|
* @param $parameters
|
|
*/
|
|
function setGraphicsState($parameters)
|
|
{
|
|
// Create a new graphics state object if necessary
|
|
if (($gstate = array_search($parameters, $this->gstates)) === false) {
|
|
$this->numObj++;
|
|
$this->o_extGState($this->numObj, 'new', $parameters);
|
|
$gstate = $this->numStates;
|
|
$this->gstates[$gstate] = $parameters;
|
|
}
|
|
$this->addContent("\n/GS$gstate gs");
|
|
}
|
|
|
|
/**
|
|
* Set current blend mode & opacity for lines.
|
|
*
|
|
* Valid blend modes are:
|
|
*
|
|
* Normal, Multiply, Screen, Overlay, Darken, Lighten,
|
|
* ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
|
|
* Exclusion
|
|
*
|
|
* @param string $mode the blend mode to use
|
|
* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
|
|
*/
|
|
function setLineTransparency($mode, $opacity)
|
|
{
|
|
static $blend_modes = [
|
|
"Normal",
|
|
"Multiply",
|
|
"Screen",
|
|
"Overlay",
|
|
"Darken",
|
|
"Lighten",
|
|
"ColorDogde",
|
|
"ColorBurn",
|
|
"HardLight",
|
|
"SoftLight",
|
|
"Difference",
|
|
"Exclusion"
|
|
];
|
|
|
|
if (!in_array($mode, $blend_modes)) {
|
|
$mode = "Normal";
|
|
}
|
|
|
|
// Only create a new graphics state if required
|
|
if ($mode === $this->currentLineTransparency["mode"] &&
|
|
$opacity == $this->currentLineTransparency["opacity"]
|
|
) {
|
|
return;
|
|
}
|
|
|
|
$this->currentLineTransparency["mode"] = $mode;
|
|
$this->currentLineTransparency["opacity"] = $opacity;
|
|
|
|
$options = [
|
|
"BM" => "/$mode",
|
|
"CA" => (float)$opacity
|
|
];
|
|
|
|
$this->setGraphicsState($options);
|
|
}
|
|
|
|
/**
|
|
* Set current blend mode & opacity for filled objects.
|
|
*
|
|
* Valid blend modes are:
|
|
*
|
|
* Normal, Multiply, Screen, Overlay, Darken, Lighten,
|
|
* ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
|
|
* Exclusion
|
|
*
|
|
* @param string $mode the blend mode to use
|
|
* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
|
|
*/
|
|
function setFillTransparency($mode, $opacity)
|
|
{
|
|
static $blend_modes = [
|
|
"Normal",
|
|
"Multiply",
|
|
"Screen",
|
|
"Overlay",
|
|
"Darken",
|
|
"Lighten",
|
|
"ColorDogde",
|
|
"ColorBurn",
|
|
"HardLight",
|
|
"SoftLight",
|
|
"Difference",
|
|
"Exclusion"
|
|
];
|
|
|
|
if (!in_array($mode, $blend_modes)) {
|
|
$mode = "Normal";
|
|
}
|
|
|
|
if ($mode === $this->currentFillTransparency["mode"] &&
|
|
$opacity == $this->currentFillTransparency["opacity"]
|
|
) {
|
|
return;
|
|
}
|
|
|
|
$this->currentFillTransparency["mode"] = $mode;
|
|
$this->currentFillTransparency["opacity"] = $opacity;
|
|
|
|
$options = [
|
|
"BM" => "/$mode",
|
|
"ca" => (float)$opacity,
|
|
];
|
|
|
|
$this->setGraphicsState($options);
|
|
}
|
|
|
|
/**
|
|
* draw a line from one set of coordinates to another
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $x2
|
|
* @param $y2
|
|
* @param bool $stroke
|
|
*/
|
|
function line($x1, $y1, $x2, $y2, $stroke = true)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F m %.3F %.3F l", $x1, $y1, $x2, $y2));
|
|
|
|
if ($stroke) {
|
|
$this->addContent(' S');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* draw a bezier curve based on 4 control points
|
|
*
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $x2
|
|
* @param $y2
|
|
* @param $x3
|
|
* @param $y3
|
|
*/
|
|
function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
|
|
{
|
|
// in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
|
|
// as the control points for the curve.
|
|
$this->addContent(
|
|
sprintf("\n%.3F %.3F m %.3F %.3F %.3F %.3F %.3F %.3F c S", $x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* draw a part of an ellipse
|
|
*
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $astart
|
|
* @param $afinish
|
|
* @param $r1
|
|
* @param int $r2
|
|
* @param int $angle
|
|
* @param int $nSeg
|
|
*/
|
|
function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8)
|
|
{
|
|
$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, false);
|
|
}
|
|
|
|
/**
|
|
* draw a filled ellipse
|
|
*
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $r1
|
|
* @param int $r2
|
|
* @param int $angle
|
|
* @param int $nSeg
|
|
* @param int $astart
|
|
* @param int $afinish
|
|
*/
|
|
function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360)
|
|
{
|
|
$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, true, true);
|
|
}
|
|
|
|
/**
|
|
* @param $x
|
|
* @param $y
|
|
*/
|
|
function lineTo($x, $y)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F l", $x, $y));
|
|
}
|
|
|
|
/**
|
|
* @param $x
|
|
* @param $y
|
|
*/
|
|
function moveTo($x, $y)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F m", $x, $y));
|
|
}
|
|
|
|
/**
|
|
* draw a bezier curve based on 4 control points
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $x2
|
|
* @param $y2
|
|
* @param $x3
|
|
* @param $y3
|
|
*/
|
|
function curveTo($x1, $y1, $x2, $y2, $x3, $y3)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F %.3F %.3F c", $x1, $y1, $x2, $y2, $x3, $y3));
|
|
}
|
|
|
|
/**
|
|
* draw a bezier curve based on 4 control points
|
|
*/
|
|
function quadTo($cpx, $cpy, $x, $y)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F v", $cpx, $cpy, $x, $y));
|
|
}
|
|
|
|
function closePath()
|
|
{
|
|
$this->addContent(' h');
|
|
}
|
|
|
|
function endPath()
|
|
{
|
|
$this->addContent(' n');
|
|
}
|
|
|
|
/**
|
|
* draw an ellipse
|
|
* note that the part and filled ellipse are just special cases of this function
|
|
*
|
|
* draws an ellipse in the current line style
|
|
* centered at $x0,$y0, radii $r1,$r2
|
|
* if $r2 is not set, then a circle is drawn
|
|
* from $astart to $afinish, measured in degrees, running anti-clockwise from the right hand side of the ellipse.
|
|
* nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
|
|
* pretty crappy shape at 2, as we are approximating with bezier curves.
|
|
*
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $r1
|
|
* @param int $r2
|
|
* @param int $angle
|
|
* @param int $nSeg
|
|
* @param int $astart
|
|
* @param int $afinish
|
|
* @param bool $close
|
|
* @param bool $fill
|
|
* @param bool $stroke
|
|
* @param bool $incomplete
|
|
*/
|
|
function ellipse(
|
|
$x0,
|
|
$y0,
|
|
$r1,
|
|
$r2 = 0,
|
|
$angle = 0,
|
|
$nSeg = 8,
|
|
$astart = 0,
|
|
$afinish = 360,
|
|
$close = true,
|
|
$fill = false,
|
|
$stroke = true,
|
|
$incomplete = false
|
|
) {
|
|
if ($r1 == 0) {
|
|
return;
|
|
}
|
|
|
|
if ($r2 == 0) {
|
|
$r2 = $r1;
|
|
}
|
|
|
|
if ($nSeg < 2) {
|
|
$nSeg = 2;
|
|
}
|
|
|
|
$astart = deg2rad((float)$astart);
|
|
$afinish = deg2rad((float)$afinish);
|
|
$totalAngle = $afinish - $astart;
|
|
|
|
$dt = $totalAngle / $nSeg;
|
|
$dtm = $dt / 3;
|
|
|
|
if ($angle != 0) {
|
|
$a = -1 * deg2rad((float)$angle);
|
|
|
|
$this->addContent(
|
|
sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
|
|
);
|
|
|
|
$x0 = 0;
|
|
$y0 = 0;
|
|
}
|
|
|
|
$t1 = $astart;
|
|
$a0 = $x0 + $r1 * cos($t1);
|
|
$b0 = $y0 + $r2 * sin($t1);
|
|
$c0 = -$r1 * sin($t1);
|
|
$d0 = $r2 * cos($t1);
|
|
|
|
if (!$incomplete) {
|
|
$this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
|
|
}
|
|
|
|
for ($i = 1; $i <= $nSeg; $i++) {
|
|
// draw this bit of the total curve
|
|
$t1 = $i * $dt + $astart;
|
|
$a1 = $x0 + $r1 * cos($t1);
|
|
$b1 = $y0 + $r2 * sin($t1);
|
|
$c1 = -$r1 * sin($t1);
|
|
$d1 = $r2 * cos($t1);
|
|
|
|
$this->addContent(
|
|
sprintf(
|
|
"\n%.3F %.3F %.3F %.3F %.3F %.3F c",
|
|
($a0 + $c0 * $dtm),
|
|
($b0 + $d0 * $dtm),
|
|
($a1 - $c1 * $dtm),
|
|
($b1 - $d1 * $dtm),
|
|
$a1,
|
|
$b1
|
|
)
|
|
);
|
|
|
|
$a0 = $a1;
|
|
$b0 = $b1;
|
|
$c0 = $c1;
|
|
$d0 = $d1;
|
|
}
|
|
|
|
if (!$incomplete) {
|
|
if ($fill) {
|
|
$this->addContent(' f');
|
|
}
|
|
|
|
if ($stroke) {
|
|
if ($close) {
|
|
$this->addContent(' s'); // small 's' signifies closing the path as well
|
|
} else {
|
|
$this->addContent(' S');
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($angle != 0) {
|
|
$this->addContent(' Q');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* this sets the line drawing style.
|
|
* width, is the thickness of the line in user units
|
|
* cap is the type of cap to put on the line, values can be 'butt','round','square'
|
|
* where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
|
|
* end of the line.
|
|
* join can be 'miter', 'round', 'bevel'
|
|
* dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
|
|
* on and off dashes.
|
|
* (2) represents 2 on, 2 off, 2 on , 2 off ...
|
|
* (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
|
|
* phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
|
|
*
|
|
* @param int $width
|
|
* @param string $cap
|
|
* @param string $join
|
|
* @param string $dash
|
|
* @param int $phase
|
|
*/
|
|
function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0)
|
|
{
|
|
// this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
|
|
$string = '';
|
|
|
|
if ($width > 0) {
|
|
$string .= "$width w";
|
|
}
|
|
|
|
$ca = ['butt' => 0, 'round' => 1, 'square' => 2];
|
|
|
|
if (isset($ca[$cap])) {
|
|
$string .= " $ca[$cap] J";
|
|
}
|
|
|
|
$ja = ['miter' => 0, 'round' => 1, 'bevel' => 2];
|
|
|
|
if (isset($ja[$join])) {
|
|
$string .= " $ja[$join] j";
|
|
}
|
|
|
|
if (is_array($dash)) {
|
|
$string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
|
|
}
|
|
|
|
$this->currentLineStyle = $string;
|
|
$this->addContent("\n$string");
|
|
}
|
|
|
|
/**
|
|
* draw a polygon, the syntax for this is similar to the GD polygon command
|
|
*
|
|
* @param $p
|
|
* @param $np
|
|
* @param bool $f
|
|
*/
|
|
function polygon($p, $np, $f = false)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
|
|
|
|
for ($i = 2; $i < $np * 2; $i = $i + 2) {
|
|
$this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
|
|
}
|
|
|
|
if ($f) {
|
|
$this->addContent(' f');
|
|
} else {
|
|
$this->addContent(' S');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* a filled rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
|
|
* the coordinates of the upper-right corner
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $width
|
|
* @param $height
|
|
*/
|
|
function filledRectangle($x1, $y1, $width, $height)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re f", $x1, $y1, $width, $height));
|
|
}
|
|
|
|
/**
|
|
* draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
|
|
* the coordinates of the upper-right corner
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $width
|
|
* @param $height
|
|
*/
|
|
function rectangle($x1, $y1, $width, $height)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re S", $x1, $y1, $width, $height));
|
|
}
|
|
|
|
/**
|
|
* draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
|
|
* the coordinates of the upper-right corner
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $width
|
|
* @param $height
|
|
*/
|
|
function rect($x1, $y1, $width, $height)
|
|
{
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re", $x1, $y1, $width, $height));
|
|
}
|
|
|
|
function stroke()
|
|
{
|
|
$this->addContent("\nS");
|
|
}
|
|
|
|
function fill()
|
|
{
|
|
$this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
|
|
}
|
|
|
|
function fillStroke()
|
|
{
|
|
$this->addContent("\nb" . ($this->fillRule === "evenodd" ? "*" : ""));
|
|
}
|
|
|
|
/**
|
|
* @param string $subtype
|
|
* @param integer $x
|
|
* @param integer $y
|
|
* @param integer $w
|
|
* @param integer $h
|
|
* @return int
|
|
*/
|
|
function addXObject($subtype, $x, $y, $w, $h)
|
|
{
|
|
$id = ++$this->numObj;
|
|
$this->o_xobject($id, 'new', ['Subtype' => $subtype, 'bbox' => [$x, $y, $w, $h]]);
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* @param integer $numXObject
|
|
* @param string $type
|
|
* @param array $options
|
|
*/
|
|
function setXObjectResource($numXObject, $type, $options)
|
|
{
|
|
if (in_array($type, ['procset', 'font', 'xObject'])) {
|
|
$this->o_xobject($numXObject, $type, $options);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* add signature
|
|
*
|
|
* $fieldSigId = $cpdf->addFormField(Cpdf::ACROFORM_FIELD_SIG, 'Signature1', 0, 0, 0, 0, 0);
|
|
*
|
|
* $signatureId = $cpdf->addSignature([
|
|
* 'signcert' => file_get_contents('dompdf.crt'),
|
|
* 'privkey' => file_get_contents('dompdf.key'),
|
|
* 'password' => 'password',
|
|
* 'name' => 'DomPDF DEMO',
|
|
* 'location' => 'Home',
|
|
* 'reason' => 'First Form',
|
|
* 'contactinfo' => 'info'
|
|
* ]);
|
|
* $cpdf->setFormFieldValue($fieldSigId, "$signatureId 0 R");
|
|
*
|
|
* @param string $signcert
|
|
* @param string $privkey
|
|
* @param string $password
|
|
* @param string|null $name
|
|
* @param string|null $location
|
|
* @param string|null $reason
|
|
* @param string|null $contactinfo
|
|
* @return int
|
|
*/
|
|
function addSignature($signcert, $privkey, $password = '', $name = null, $location = null, $reason = null, $contactinfo = null) {
|
|
$sigId = ++$this->numObj;
|
|
$this->o_sig($sigId, 'new', [
|
|
'SignCert' => $signcert,
|
|
'PrivKey' => $privkey,
|
|
'Password' => $password,
|
|
'Name' => $name,
|
|
'Location' => $location,
|
|
'Reason' => $reason,
|
|
'ContactInfo' => $contactinfo
|
|
]);
|
|
|
|
return $sigId;
|
|
}
|
|
|
|
/**
|
|
* add field to form
|
|
*
|
|
* @param string $type ACROFORM_FIELD_*
|
|
* @param string $name
|
|
* @param $x0
|
|
* @param $y0
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param integer $ff Field Flag ACROFORM_FIELD_*_*
|
|
* @param float $size
|
|
* @param array $color
|
|
* @return int
|
|
*/
|
|
public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
|
|
{
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
$color = implode(' ', $color) . ' rg';
|
|
|
|
$currentFontNum = $this->currentFontNum;
|
|
$font = array_filter($this->objects[$this->currentNode]['info']['fonts'],
|
|
function($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; });
|
|
|
|
$this->o_acroform($this->acroFormId, 'font',
|
|
['objNum' => $font[0]['objNum'], 'fontNum' => $font[0]['fontNum']]);
|
|
|
|
$fieldId = ++$this->numObj;
|
|
$this->o_field($fieldId, 'new', [
|
|
'rect' => [$x0, $y0, $x1, $y1],
|
|
'F' => 4,
|
|
'FT' => "/$type",
|
|
'T' => $name,
|
|
'Ff' => $ff,
|
|
'pageid' => $this->currentPage,
|
|
'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
|
|
]);
|
|
|
|
return $fieldId;
|
|
}
|
|
|
|
/**
|
|
* set Field value
|
|
*
|
|
* @param integer $numFieldObj
|
|
* @param string $value
|
|
*/
|
|
public function setFormFieldValue($numFieldObj, $value)
|
|
{
|
|
$this->o_field($numFieldObj, 'set', ['value' => $value]);
|
|
}
|
|
|
|
/**
|
|
* set Field value (reference)
|
|
*
|
|
* @param integer $numFieldObj
|
|
* @param integer $numObj Object number
|
|
*/
|
|
public function setFormFieldRefValue($numFieldObj, $numObj)
|
|
{
|
|
$this->o_field($numFieldObj, 'set', ['refvalue' => $numObj]);
|
|
}
|
|
|
|
/**
|
|
* set Field Appearanc (reference)
|
|
*
|
|
* @param integer $numFieldObj
|
|
* @param integer $normalNumObj
|
|
* @param integer|null $rolloverNumObj
|
|
* @param integer|null $downNumObj
|
|
*/
|
|
public function setFormFieldAppearance($numFieldObj, $normalNumObj, $rolloverNumObj = null, $downNumObj = null)
|
|
{
|
|
$appearance['N'] = $normalNumObj;
|
|
|
|
if ($rolloverNumObj !== null) {
|
|
$appearance['R'] = $rolloverNumObj;
|
|
}
|
|
|
|
if ($downNumObj !== null) {
|
|
$appearance['D'] = $downNumObj;
|
|
}
|
|
|
|
$this->o_field($numFieldObj, 'set', ['appearance' => $appearance]);
|
|
}
|
|
|
|
/**
|
|
* set Choice Field option values
|
|
*
|
|
* @param integer $numFieldObj
|
|
* @param array $value
|
|
*/
|
|
public function setFormFieldOpt($numFieldObj, $value)
|
|
{
|
|
$this->o_field($numFieldObj, 'set', ['options' => $value]);
|
|
}
|
|
|
|
/**
|
|
* add form to document
|
|
*
|
|
* @param integer $sigFlags
|
|
* @param boolean $needAppearances
|
|
*/
|
|
public function addForm($sigFlags = 0, $needAppearances = false)
|
|
{
|
|
$this->acroFormId = ++$this->numObj;
|
|
$this->o_acroform($this->acroFormId, 'new', [
|
|
'NeedAppearances' => $needAppearances ? 'true' : 'false',
|
|
'SigFlags' => $sigFlags
|
|
]);
|
|
}
|
|
|
|
/**
|
|
* save the current graphic state
|
|
*/
|
|
function save()
|
|
{
|
|
// we must reset the color cache or it will keep bad colors after clipping
|
|
$this->currentColor = null;
|
|
$this->currentStrokeColor = null;
|
|
$this->addContent("\nq");
|
|
}
|
|
|
|
/**
|
|
* restore the last graphic state
|
|
*/
|
|
function restore()
|
|
{
|
|
// we must reset the color cache or it will keep bad colors after clipping
|
|
$this->currentColor = null;
|
|
$this->currentStrokeColor = null;
|
|
$this->addContent("\nQ");
|
|
}
|
|
|
|
/**
|
|
* draw a clipping rectangle, all the elements added after this will be clipped
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $width
|
|
* @param $height
|
|
*/
|
|
function clippingRectangle($x1, $y1, $width, $height)
|
|
{
|
|
$this->save();
|
|
$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re W n", $x1, $y1, $width, $height));
|
|
}
|
|
|
|
/**
|
|
* draw a clipping rounded rectangle, all the elements added after this will be clipped
|
|
*
|
|
* @param $x1
|
|
* @param $y1
|
|
* @param $w
|
|
* @param $h
|
|
* @param $rTL
|
|
* @param $rTR
|
|
* @param $rBR
|
|
* @param $rBL
|
|
*/
|
|
function clippingRectangleRounded($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
|
|
{
|
|
$this->save();
|
|
|
|
// start: top edge, left end
|
|
$this->addContent(sprintf("\n%.3F %.3F m ", $x1, $y1 - $rTL + $h));
|
|
|
|
// line: bottom edge, left end
|
|
$this->addContent(sprintf("\n%.3F %.3F l ", $x1, $y1 + $rBL));
|
|
|
|
// curve: bottom-left corner
|
|
$this->ellipse($x1 + $rBL, $y1 + $rBL, $rBL, 0, 0, 8, 180, 270, false, false, false, true);
|
|
|
|
// line: right edge, bottom end
|
|
$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w - $rBR, $y1));
|
|
|
|
// curve: bottom-right corner
|
|
$this->ellipse($x1 + $w - $rBR, $y1 + $rBR, $rBR, 0, 0, 8, 270, 360, false, false, false, true);
|
|
|
|
// line: right edge, top end
|
|
$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w, $y1 + $h - $rTR));
|
|
|
|
// curve: bottom-right corner
|
|
$this->ellipse($x1 + $w - $rTR, $y1 + $h - $rTR, $rTR, 0, 0, 8, 0, 90, false, false, false, true);
|
|
|
|
// line: bottom edge, right end
|
|
$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rTL, $y1 + $h));
|
|
|
|
// curve: top-right corner
|
|
$this->ellipse($x1 + $rTL, $y1 + $h - $rTL, $rTL, 0, 0, 8, 90, 180, false, false, false, true);
|
|
|
|
// line: top edge, left end
|
|
$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rBL, $y1));
|
|
|
|
// Close & clip
|
|
$this->addContent(" W n");
|
|
}
|
|
|
|
/**
|
|
* ends the last clipping shape
|
|
*/
|
|
function clippingEnd()
|
|
{
|
|
$this->restore();
|
|
}
|
|
|
|
/**
|
|
* scale
|
|
*
|
|
* @param float $s_x scaling factor for width as percent
|
|
* @param float $s_y scaling factor for height as percent
|
|
* @param float $x Origin abscissa
|
|
* @param float $y Origin ordinate
|
|
*/
|
|
function scale($s_x, $s_y, $x, $y)
|
|
{
|
|
$y = $this->currentPageSize["height"] - $y;
|
|
|
|
$tm = [
|
|
$s_x,
|
|
0,
|
|
0,
|
|
$s_y,
|
|
$x * (1 - $s_x),
|
|
$y * (1 - $s_y)
|
|
];
|
|
|
|
$this->transform($tm);
|
|
}
|
|
|
|
/**
|
|
* translate
|
|
*
|
|
* @param float $t_x movement to the right
|
|
* @param float $t_y movement to the bottom
|
|
*/
|
|
function translate($t_x, $t_y)
|
|
{
|
|
$tm = [
|
|
1,
|
|
0,
|
|
0,
|
|
1,
|
|
$t_x,
|
|
-$t_y
|
|
];
|
|
|
|
$this->transform($tm);
|
|
}
|
|
|
|
/**
|
|
* rotate
|
|
*
|
|
* @param float $angle angle in degrees for counter-clockwise rotation
|
|
* @param float $x Origin abscissa
|
|
* @param float $y Origin ordinate
|
|
*/
|
|
function rotate($angle, $x, $y)
|
|
{
|
|
$y = $this->currentPageSize["height"] - $y;
|
|
|
|
$a = deg2rad($angle);
|
|
$cos_a = cos($a);
|
|
$sin_a = sin($a);
|
|
|
|
$tm = [
|
|
$cos_a,
|
|
-$sin_a,
|
|
$sin_a,
|
|
$cos_a,
|
|
$x - $sin_a * $y - $cos_a * $x,
|
|
$y - $cos_a * $y + $sin_a * $x,
|
|
];
|
|
|
|
$this->transform($tm);
|
|
}
|
|
|
|
/**
|
|
* skew
|
|
*
|
|
* @param float $angle_x
|
|
* @param float $angle_y
|
|
* @param float $x Origin abscissa
|
|
* @param float $y Origin ordinate
|
|
*/
|
|
function skew($angle_x, $angle_y, $x, $y)
|
|
{
|
|
$y = $this->currentPageSize["height"] - $y;
|
|
|
|
$tan_x = tan(deg2rad($angle_x));
|
|
$tan_y = tan(deg2rad($angle_y));
|
|
|
|
$tm = [
|
|
1,
|
|
-$tan_y,
|
|
-$tan_x,
|
|
1,
|
|
$tan_x * $y,
|
|
$tan_y * $x,
|
|
];
|
|
|
|
$this->transform($tm);
|
|
}
|
|
|
|
/**
|
|
* apply graphic transformations
|
|
*
|
|
* @param array $tm transformation matrix
|
|
*/
|
|
function transform($tm)
|
|
{
|
|
$this->addContent(vsprintf("\n %.3F %.3F %.3F %.3F %.3F %.3F cm", $tm));
|
|
}
|
|
|
|
/**
|
|
* add a new page to the document
|
|
* this also makes the new page the current active object
|
|
*
|
|
* @param int $insert
|
|
* @param int $id
|
|
* @param string $pos
|
|
* @return int
|
|
*/
|
|
function newPage($insert = 0, $id = 0, $pos = 'after')
|
|
{
|
|
// if there is a state saved, then go up the stack closing them
|
|
// then on the new page, re-open them with the right setings
|
|
|
|
if ($this->nStateStack) {
|
|
for ($i = $this->nStateStack; $i >= 1; $i--) {
|
|
$this->restoreState($i);
|
|
}
|
|
}
|
|
|
|
$this->numObj++;
|
|
|
|
if ($insert) {
|
|
// the id from the ezPdf class is the id of the contents of the page, not the page object itself
|
|
// query that object to find the parent
|
|
$rid = $this->objects[$id]['onPage'];
|
|
$opt = ['rid' => $rid, 'pos' => $pos];
|
|
$this->o_page($this->numObj, 'new', $opt);
|
|
} else {
|
|
$this->o_page($this->numObj, 'new');
|
|
}
|
|
|
|
// if there is a stack saved, then put that onto the page
|
|
if ($this->nStateStack) {
|
|
for ($i = 1; $i <= $this->nStateStack; $i++) {
|
|
$this->saveState($i);
|
|
}
|
|
}
|
|
|
|
// and if there has been a stroke or fill color set, then transfer them
|
|
if (isset($this->currentColor)) {
|
|
$this->setColor($this->currentColor, true);
|
|
}
|
|
|
|
if (isset($this->currentStrokeColor)) {
|
|
$this->setStrokeColor($this->currentStrokeColor, true);
|
|
}
|
|
|
|
// if there is a line style set, then put this in too
|
|
if (mb_strlen($this->currentLineStyle, '8bit')) {
|
|
$this->addContent("\n$this->currentLineStyle");
|
|
}
|
|
|
|
// the call to the o_page object set currentContents to the present page, so this can be returned as the page id
|
|
return $this->currentContents;
|
|
}
|
|
|
|
/**
|
|
* Streams the PDF to the client.
|
|
*
|
|
* @param string $filename The filename to present to the client.
|
|
* @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
|
|
*/
|
|
function stream($filename = "document.pdf", $options = [])
|
|
{
|
|
if (headers_sent()) {
|
|
die("Unable to stream pdf: headers already sent");
|
|
}
|
|
|
|
if (!isset($options["compress"])) $options["compress"] = true;
|
|
if (!isset($options["Attachment"])) $options["Attachment"] = true;
|
|
|
|
$debug = !$options['compress'];
|
|
$tmp = ltrim($this->output($debug));
|
|
|
|
header("Cache-Control: private");
|
|
header("Content-Type: application/pdf");
|
|
header("Content-Length: " . mb_strlen($tmp, "8bit"));
|
|
|
|
$filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
|
|
$attachment = $options["Attachment"] ? "attachment" : "inline";
|
|
|
|
$encoding = mb_detect_encoding($filename);
|
|
$fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
|
|
$fallbackfilename = str_replace("\"", "", $fallbackfilename);
|
|
$encodedfilename = rawurlencode($filename);
|
|
|
|
$contentDisposition = "Content-Disposition: $attachment; filename=\"$fallbackfilename\"";
|
|
if ($fallbackfilename !== $filename) {
|
|
$contentDisposition .= "; filename*=UTF-8''$encodedfilename";
|
|
}
|
|
header($contentDisposition);
|
|
|
|
echo $tmp;
|
|
flush();
|
|
}
|
|
|
|
/**
|
|
* return the height in units of the current font in the given size
|
|
*
|
|
* @param $size
|
|
* @return float|int
|
|
*/
|
|
function getFontHeight($size)
|
|
{
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
$font = $this->fonts[$this->currentFont];
|
|
|
|
// for the current font, and the given size, what is the height of the font in user units
|
|
if (isset($font['Ascender']) && isset($font['Descender'])) {
|
|
$h = $font['Ascender'] - $font['Descender'];
|
|
} else {
|
|
$h = $font['FontBBox'][3] - $font['FontBBox'][1];
|
|
}
|
|
|
|
// have to adjust by a font offset for Windows fonts. unfortunately it looks like
|
|
// the bounding box calculations are wrong and I don't know why.
|
|
if (isset($font['FontHeightOffset'])) {
|
|
// For CourierNew from Windows this needs to be -646 to match the
|
|
// Adobe native Courier font.
|
|
//
|
|
// For FreeMono from GNU this needs to be -337 to match the
|
|
// Courier font.
|
|
//
|
|
// Both have been added manually to the .afm and .ufm files.
|
|
$h += (int)$font['FontHeightOffset'];
|
|
}
|
|
|
|
return $size * $h / 1000;
|
|
}
|
|
|
|
/**
|
|
* @param $size
|
|
* @return float|int
|
|
*/
|
|
function getFontXHeight($size)
|
|
{
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
$font = $this->fonts[$this->currentFont];
|
|
|
|
// for the current font, and the given size, what is the height of the font in user units
|
|
if (isset($font['XHeight'])) {
|
|
$xh = $font['Ascender'] - $font['Descender'];
|
|
} else {
|
|
$xh = $this->getFontHeight($size) / 2;
|
|
}
|
|
|
|
return $size * $xh / 1000;
|
|
}
|
|
|
|
/**
|
|
* return the font descender, this will normally return a negative number
|
|
* if you add this number to the baseline, you get the level of the bottom of the font
|
|
* it is in the pdf user units
|
|
*
|
|
* @param $size
|
|
* @return float|int
|
|
*/
|
|
function getFontDescender($size)
|
|
{
|
|
// note that this will most likely return a negative value
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
//$h = $this->fonts[$this->currentFont]['FontBBox'][1];
|
|
$h = $this->fonts[$this->currentFont]['Descender'];
|
|
|
|
return $size * $h / 1000;
|
|
}
|
|
|
|
/**
|
|
* filter the text, this is applied to all text just before being inserted into the pdf document
|
|
* it escapes the various things that need to be escaped, and so on
|
|
*
|
|
* @access private
|
|
*
|
|
* @param $text
|
|
* @param bool $bom
|
|
* @param bool $convert_encoding
|
|
* @return string
|
|
*/
|
|
function filterText($text, $bom = true, $convert_encoding = true)
|
|
{
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
if ($convert_encoding) {
|
|
$cf = $this->currentFont;
|
|
if (isset($this->fonts[$cf]) && $this->fonts[$cf]['isUnicode']) {
|
|
$text = $this->utf8toUtf16BE($text, $bom);
|
|
} else {
|
|
//$text = html_entity_decode($text, ENT_QUOTES);
|
|
$text = mb_convert_encoding($text, self::$targetEncoding, 'UTF-8');
|
|
}
|
|
} else if ($bom) {
|
|
$text = $this->utf8toUtf16BE($text, $bom);
|
|
}
|
|
|
|
// the chr(13) substitution fixes a bug seen in TCPDF (bug #1421290)
|
|
return strtr($text, [')' => '\\)', '(' => '\\(', '\\' => '\\\\', chr(13) => '\r']);
|
|
}
|
|
|
|
/**
|
|
* return array containing codepoints (UTF-8 character values) for the
|
|
* string passed in.
|
|
*
|
|
* based on the excellent TCPDF code by Nicola Asuni and the
|
|
* RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
|
|
*
|
|
* @access private
|
|
* @author Orion Richardson
|
|
* @since January 5, 2008
|
|
*
|
|
* @param string $text UTF-8 string to process
|
|
*
|
|
* @return array UTF-8 codepoints array for the string
|
|
*/
|
|
function utf8toCodePointsArray(&$text)
|
|
{
|
|
$length = mb_strlen($text, '8bit'); // http://www.php.net/manual/en/function.mb-strlen.php#77040
|
|
$unicode = []; // array containing unicode values
|
|
$bytes = []; // array containing single character byte sequences
|
|
$numbytes = 1; // number of octets needed to represent the UTF-8 character
|
|
|
|
for ($i = 0; $i < $length; $i++) {
|
|
$c = ord($text[$i]); // get one string character at time
|
|
if (count($bytes) === 0) { // get starting octect
|
|
if ($c <= 0x7F) {
|
|
$unicode[] = $c; // use the character "as is" because is ASCII
|
|
$numbytes = 1;
|
|
} elseif (($c >> 0x05) === 0x06) { // 2 bytes character (0x06 = 110 BIN)
|
|
$bytes[] = ($c - 0xC0) << 0x06;
|
|
$numbytes = 2;
|
|
} elseif (($c >> 0x04) === 0x0E) { // 3 bytes character (0x0E = 1110 BIN)
|
|
$bytes[] = ($c - 0xE0) << 0x0C;
|
|
$numbytes = 3;
|
|
} elseif (($c >> 0x03) === 0x1E) { // 4 bytes character (0x1E = 11110 BIN)
|
|
$bytes[] = ($c - 0xF0) << 0x12;
|
|
$numbytes = 4;
|
|
} else {
|
|
// use replacement character for other invalid sequences
|
|
$unicode[] = 0xFFFD;
|
|
$bytes = [];
|
|
$numbytes = 1;
|
|
}
|
|
} elseif (($c >> 0x06) === 0x02) { // bytes 2, 3 and 4 must start with 0x02 = 10 BIN
|
|
$bytes[] = $c - 0x80;
|
|
if (count($bytes) === $numbytes) {
|
|
// compose UTF-8 bytes to a single unicode value
|
|
$c = $bytes[0];
|
|
for ($j = 1; $j < $numbytes; $j++) {
|
|
$c += ($bytes[$j] << (($numbytes - $j - 1) * 0x06));
|
|
}
|
|
if ((($c >= 0xD800) and ($c <= 0xDFFF)) or ($c >= 0x10FFFF)) {
|
|
// The definition of UTF-8 prohibits encoding character numbers between
|
|
// U+D800 and U+DFFF, which are reserved for use with the UTF-16
|
|
// encoding form (as surrogate pairs) and do not directly represent
|
|
// characters.
|
|
$unicode[] = 0xFFFD; // use replacement character
|
|
} else {
|
|
$unicode[] = $c; // add char to array
|
|
}
|
|
// reset data for next char
|
|
$bytes = [];
|
|
$numbytes = 1;
|
|
}
|
|
} else {
|
|
// use replacement character for other invalid sequences
|
|
$unicode[] = 0xFFFD;
|
|
$bytes = [];
|
|
$numbytes = 1;
|
|
}
|
|
}
|
|
|
|
return $unicode;
|
|
}
|
|
|
|
/**
|
|
* convert UTF-8 to UTF-16 with an additional byte order marker
|
|
* at the front if required.
|
|
*
|
|
* based on the excellent TCPDF code by Nicola Asuni and the
|
|
* RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
|
|
*
|
|
* @access private
|
|
* @author Orion Richardson
|
|
* @since January 5, 2008
|
|
*
|
|
* @param string $text UTF-8 string to process
|
|
* @param boolean $bom whether to add the byte order marker
|
|
*
|
|
* @return string UTF-16 result string
|
|
*/
|
|
function utf8toUtf16BE(&$text, $bom = true)
|
|
{
|
|
$out = $bom ? "\xFE\xFF" : '';
|
|
|
|
$unicode = $this->utf8toCodePointsArray($text);
|
|
foreach ($unicode as $c) {
|
|
if ($c === 0xFFFD) {
|
|
$out .= "\xFF\xFD"; // replacement character
|
|
} elseif ($c < 0x10000) {
|
|
$out .= chr($c >> 0x08) . chr($c & 0xFF);
|
|
} else {
|
|
$c -= 0x10000;
|
|
$w1 = 0xD800 | ($c >> 0x10);
|
|
$w2 = 0xDC00 | ($c & 0x3FF);
|
|
$out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
|
|
}
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* given a start position and information about how text is to be laid out, calculate where
|
|
* on the page the text will end
|
|
*
|
|
* @param $x
|
|
* @param $y
|
|
* @param $angle
|
|
* @param $size
|
|
* @param $wa
|
|
* @param $text
|
|
* @return array
|
|
*/
|
|
private function getTextPosition($x, $y, $angle, $size, $wa, $text)
|
|
{
|
|
// given this information return an array containing x and y for the end position as elements 0 and 1
|
|
$w = $this->getTextWidth($size, $text);
|
|
|
|
// need to adjust for the number of spaces in this text
|
|
$words = explode(' ', $text);
|
|
$nspaces = count($words) - 1;
|
|
$w += $wa * $nspaces;
|
|
$a = deg2rad((float)$angle);
|
|
|
|
return [cos($a) * $w + $x, -sin($a) * $w + $y];
|
|
}
|
|
|
|
/**
|
|
* Callback method used by smallCaps
|
|
*
|
|
* @param array $matches
|
|
*
|
|
* @return string
|
|
*/
|
|
function toUpper($matches)
|
|
{
|
|
return mb_strtoupper($matches[0]);
|
|
}
|
|
|
|
function concatMatches($matches)
|
|
{
|
|
$str = "";
|
|
foreach ($matches as $match) {
|
|
$str .= $match[0];
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
/**
|
|
* register text for font subsetting
|
|
*
|
|
* @param $font
|
|
* @param $text
|
|
*/
|
|
function registerText($font, $text)
|
|
{
|
|
if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
|
|
return;
|
|
}
|
|
|
|
if (!isset($this->stringSubsets[$font])) {
|
|
$this->stringSubsets[$font] = [];
|
|
}
|
|
|
|
$this->stringSubsets[$font] = array_unique(
|
|
array_merge($this->stringSubsets[$font], $this->utf8toCodePointsArray($text))
|
|
);
|
|
}
|
|
|
|
/**
|
|
* add text to the document, at a specified location, size and angle on the page
|
|
*
|
|
* @param $x
|
|
* @param $y
|
|
* @param $size
|
|
* @param $text
|
|
* @param int $angle
|
|
* @param int $wordSpaceAdjust
|
|
* @param int $charSpaceAdjust
|
|
* @param bool $smallCaps
|
|
*/
|
|
function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
|
|
{
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
$text = str_replace(["\r", "\n"], "", $text);
|
|
|
|
if ($smallCaps) {
|
|
preg_match_all("/(\P{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
|
|
$lower = $this->concatMatches($matches);
|
|
d($lower);
|
|
|
|
preg_match_all("/(\p{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
|
|
$other = $this->concatMatches($matches);
|
|
d($other);
|
|
|
|
//$text = preg_replace_callback("/\p{Ll}/u", array($this, "toUpper"), $text);
|
|
}
|
|
|
|
// if there are any open callbacks, then they should be called, to show the start of the line
|
|
if ($this->nCallback > 0) {
|
|
for ($i = $this->nCallback; $i > 0; $i--) {
|
|
// call each function
|
|
$info = [
|
|
'x' => $x,
|
|
'y' => $y,
|
|
'angle' => $angle,
|
|
'status' => 'sol',
|
|
'p' => $this->callback[$i]['p'],
|
|
'nCallback' => $this->callback[$i]['nCallback'],
|
|
'height' => $this->callback[$i]['height'],
|
|
'descender' => $this->callback[$i]['descender']
|
|
];
|
|
|
|
$func = $this->callback[$i]['f'];
|
|
$this->$func($info);
|
|
}
|
|
}
|
|
|
|
if ($angle == 0) {
|
|
$this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
|
|
} else {
|
|
$a = deg2rad((float)$angle);
|
|
$this->addContent(
|
|
sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
|
|
);
|
|
}
|
|
|
|
if ($wordSpaceAdjust != 0) {
|
|
$this->addContent(sprintf(" %.3F Tw", $wordSpaceAdjust));
|
|
}
|
|
|
|
if ($charSpaceAdjust != 0) {
|
|
$this->addContent(sprintf(" %.3F Tc", $charSpaceAdjust));
|
|
}
|
|
|
|
$len = mb_strlen($text);
|
|
$start = 0;
|
|
|
|
if ($start < $len) {
|
|
$part = $text; // OAR - Don't need this anymore, given that $start always equals zero. substr($text, $start);
|
|
$place_text = $this->filterText($part, false);
|
|
// modify unicode text so that extra word spacing is manually implemented (bug #)
|
|
if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
|
|
$space_scale = 1000 / $size;
|
|
$place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
|
|
}
|
|
$this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
|
|
$this->addContent(" [($place_text)] TJ");
|
|
}
|
|
|
|
if ($wordSpaceAdjust != 0) {
|
|
$this->addContent(sprintf(" %.3F Tw", 0));
|
|
}
|
|
|
|
if ($charSpaceAdjust != 0) {
|
|
$this->addContent(sprintf(" %.3F Tc", 0));
|
|
}
|
|
|
|
$this->addContent(' ET');
|
|
|
|
// if there are any open callbacks, then they should be called, to show the end of the line
|
|
if ($this->nCallback > 0) {
|
|
for ($i = $this->nCallback; $i > 0; $i--) {
|
|
// call each function
|
|
$tmp = $this->getTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
|
|
$info = [
|
|
'x' => $tmp[0],
|
|
'y' => $tmp[1],
|
|
'angle' => $angle,
|
|
'status' => 'eol',
|
|
'p' => $this->callback[$i]['p'],
|
|
'nCallback' => $this->callback[$i]['nCallback'],
|
|
'height' => $this->callback[$i]['height'],
|
|
'descender' => $this->callback[$i]['descender']
|
|
];
|
|
$func = $this->callback[$i]['f'];
|
|
$this->$func($info);
|
|
}
|
|
}
|
|
|
|
if ($this->fonts[$this->currentFont]['isSubsetting']) {
|
|
$this->registerText($this->currentFont, $text);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* calculate how wide a given text string will be on a page, at a given size.
|
|
* this can be called externally, but is also used by the other class functions
|
|
*
|
|
* @param $size
|
|
* @param $text
|
|
* @param int $word_spacing
|
|
* @param int $char_spacing
|
|
* @return float|int
|
|
*/
|
|
function getTextWidth($size, $text, $word_spacing = 0, $char_spacing = 0)
|
|
{
|
|
static $ord_cache = [];
|
|
|
|
// this function should not change any of the settings, though it will need to
|
|
// track any directives which change during calculation, so copy them at the start
|
|
// and put them back at the end.
|
|
$store_currentTextState = $this->currentTextState;
|
|
|
|
if (!$this->numFonts) {
|
|
$this->selectFont($this->defaultFont);
|
|
}
|
|
|
|
$text = str_replace(["\r", "\n"], "", $text);
|
|
|
|
// converts a number or a float to a string so it can get the width
|
|
$text = "$text";
|
|
|
|
// hmm, this is where it all starts to get tricky - use the font information to
|
|
// calculate the width of each character, add them up and convert to user units
|
|
$w = 0;
|
|
$cf = $this->currentFont;
|
|
$current_font = $this->fonts[$cf];
|
|
$space_scale = 1000 / ($size > 0 ? $size : 1);
|
|
$n_spaces = 0;
|
|
|
|
if ($current_font['isUnicode']) {
|
|
// for Unicode, use the code points array to calculate width rather
|
|
// than just the string itself
|
|
$unicode = $this->utf8toCodePointsArray($text);
|
|
|
|
foreach ($unicode as $char) {
|
|
// check if we have to replace character
|
|
if (isset($current_font['differences'][$char])) {
|
|
$char = $current_font['differences'][$char];
|
|
}
|
|
|
|
if (isset($current_font['C'][$char])) {
|
|
$char_width = $current_font['C'][$char];
|
|
|
|
// add the character width
|
|
$w += $char_width;
|
|
|
|
// add additional padding for space
|
|
if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') { // Space
|
|
$w += $word_spacing * $space_scale;
|
|
$n_spaces++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// add additional char spacing
|
|
if ($char_spacing != 0) {
|
|
$w += $char_spacing * $space_scale * (count($unicode) + $n_spaces);
|
|
}
|
|
|
|
} else {
|
|
// If CPDF is in Unicode mode but the current font does not support Unicode we need to convert the character set to Windows-1252
|
|
if ($this->isUnicode) {
|
|
$text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
|
|
}
|
|
|
|
$len = mb_strlen($text, 'Windows-1252');
|
|
|
|
for ($i = 0; $i < $len; $i++) {
|
|
$c = $text[$i];
|
|
$char = isset($ord_cache[$c]) ? $ord_cache[$c] : ($ord_cache[$c] = ord($c));
|
|
|
|
// check if we have to replace character
|
|
if (isset($current_font['differences'][$char])) {
|
|
$char = $current_font['differences'][$char];
|
|
}
|
|
|
|
if (isset($current_font['C'][$char])) {
|
|
$char_width = $current_font['C'][$char];
|
|
|
|
// add the character width
|
|
$w += $char_width;
|
|
|
|
// add additional padding for space
|
|
if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') { // Space
|
|
$w += $word_spacing * $space_scale;
|
|
$n_spaces++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// add additional char spacing
|
|
if ($char_spacing != 0) {
|
|
$w += $char_spacing * $space_scale * ($len + $n_spaces);
|
|
}
|
|
}
|
|
|
|
$this->currentTextState = $store_currentTextState;
|
|
$this->setCurrentFont();
|
|
|
|
return $w * $size / 1000;
|
|
}
|
|
|
|
/**
|
|
* this will be called at a new page to return the state to what it was on the
|
|
* end of the previous page, before the stack was closed down
|
|
* This is to get around not being able to have open 'q' across pages
|
|
*
|
|
* @param int $pageEnd
|
|
*/
|
|
function saveState($pageEnd = 0)
|
|
{
|
|
if ($pageEnd) {
|
|
// this will be called at a new page to return the state to what it was on the
|
|
// end of the previous page, before the stack was closed down
|
|
// This is to get around not being able to have open 'q' across pages
|
|
$opt = $this->stateStack[$pageEnd];
|
|
// ok to use this as stack starts numbering at 1
|
|
$this->setColor($opt['col'], true);
|
|
$this->setStrokeColor($opt['str'], true);
|
|
$this->addContent("\n" . $opt['lin']);
|
|
// $this->currentLineStyle = $opt['lin'];
|
|
} else {
|
|
$this->nStateStack++;
|
|
$this->stateStack[$this->nStateStack] = [
|
|
'col' => $this->currentColor,
|
|
'str' => $this->currentStrokeColor,
|
|
'lin' => $this->currentLineStyle
|
|
];
|
|
}
|
|
|
|
$this->save();
|
|
}
|
|
|
|
/**
|
|
* restore a previously saved state
|
|
*
|
|
* @param int $pageEnd
|
|
*/
|
|
function restoreState($pageEnd = 0)
|
|
{
|
|
if (!$pageEnd) {
|
|
$n = $this->nStateStack;
|
|
$this->currentColor = $this->stateStack[$n]['col'];
|
|
$this->currentStrokeColor = $this->stateStack[$n]['str'];
|
|
$this->addContent("\n" . $this->stateStack[$n]['lin']);
|
|
$this->currentLineStyle = $this->stateStack[$n]['lin'];
|
|
$this->stateStack[$n] = null;
|
|
unset($this->stateStack[$n]);
|
|
$this->nStateStack--;
|
|
}
|
|
|
|
$this->restore();
|
|
}
|
|
|
|
/**
|
|
* make a loose object, the output will go into this object, until it is closed, then will revert to
|
|
* the current one.
|
|
* this object will not appear until it is included within a page.
|
|
* the function will return the object number
|
|
*
|
|
* @return int
|
|
*/
|
|
function openObject()
|
|
{
|
|
$this->nStack++;
|
|
$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
|
|
// add a new object of the content type, to hold the data flow
|
|
$this->numObj++;
|
|
$this->o_contents($this->numObj, 'new');
|
|
$this->currentContents = $this->numObj;
|
|
$this->looseObjects[$this->numObj] = 1;
|
|
|
|
return $this->numObj;
|
|
}
|
|
|
|
/**
|
|
* open an existing object for editing
|
|
*
|
|
* @param $id
|
|
*/
|
|
function reopenObject($id)
|
|
{
|
|
$this->nStack++;
|
|
$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
|
|
$this->currentContents = $id;
|
|
|
|
// also if this object is the primary contents for a page, then set the current page to its parent
|
|
if (isset($this->objects[$id]['onPage'])) {
|
|
$this->currentPage = $this->objects[$id]['onPage'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* close an object
|
|
*/
|
|
function closeObject()
|
|
{
|
|
// close the object, as long as there was one open in the first place, which will be indicated by
|
|
// an objectId on the stack.
|
|
if ($this->nStack > 0) {
|
|
$this->currentContents = $this->stack[$this->nStack]['c'];
|
|
$this->currentPage = $this->stack[$this->nStack]['p'];
|
|
$this->nStack--;
|
|
// easier to probably not worry about removing the old entries, they will be overwritten
|
|
// if there are new ones.
|
|
}
|
|
}
|
|
|
|
/**
|
|
* stop an object from appearing on pages from this point on
|
|
*
|
|
* @param $id
|
|
*/
|
|
function stopObject($id)
|
|
{
|
|
// if an object has been appearing on pages up to now, then stop it, this page will
|
|
// be the last one that could contain it.
|
|
if (isset($this->addLooseObjects[$id])) {
|
|
$this->addLooseObjects[$id] = '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* after an object has been created, it wil only show if it has been added, using this function.
|
|
*
|
|
* @param $id
|
|
* @param string $options
|
|
*/
|
|
function addObject($id, $options = 'add')
|
|
{
|
|
// add the specified object to the page
|
|
if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
|
|
// then it is a valid object, and it is not being added to itself
|
|
switch ($options) {
|
|
case 'all':
|
|
// then this object is to be added to this page (done in the next block) and
|
|
// all future new pages.
|
|
$this->addLooseObjects[$id] = 'all';
|
|
|
|
case 'add':
|
|
if (isset($this->objects[$this->currentContents]['onPage'])) {
|
|
// then the destination contents is the primary for the page
|
|
// (though this object is actually added to that page)
|
|
$this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
|
|
}
|
|
break;
|
|
|
|
case 'even':
|
|
$this->addLooseObjects[$id] = 'even';
|
|
$pageObjectId = $this->objects[$this->currentContents]['onPage'];
|
|
if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 0) {
|
|
$this->addObject($id);
|
|
// hacky huh :)
|
|
}
|
|
break;
|
|
|
|
case 'odd':
|
|
$this->addLooseObjects[$id] = 'odd';
|
|
$pageObjectId = $this->objects[$this->currentContents]['onPage'];
|
|
if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 1) {
|
|
$this->addObject($id);
|
|
// hacky huh :)
|
|
}
|
|
break;
|
|
|
|
case 'next':
|
|
$this->addLooseObjects[$id] = 'all';
|
|
break;
|
|
|
|
case 'nexteven':
|
|
$this->addLooseObjects[$id] = 'even';
|
|
break;
|
|
|
|
case 'nextodd':
|
|
$this->addLooseObjects[$id] = 'odd';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return a storable representation of a specific object
|
|
*
|
|
* @param $id
|
|
* @return string|null
|
|
*/
|
|
function serializeObject($id)
|
|
{
|
|
if (array_key_exists($id, $this->objects)) {
|
|
return serialize($this->objects[$id]);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* restore an object from its stored representation. Returns its new object id.
|
|
*
|
|
* @param $obj
|
|
* @return int
|
|
*/
|
|
function restoreSerializedObject($obj)
|
|
{
|
|
$obj_id = $this->openObject();
|
|
$this->objects[$obj_id] = unserialize($obj);
|
|
$this->closeObject();
|
|
|
|
return $obj_id;
|
|
}
|
|
|
|
/**
|
|
* Embeds a file inside the PDF
|
|
*
|
|
* @param string $filepath path to the file to store inside the PDF
|
|
* @param string $embeddedFilename the filename displayed in the list of embedded files
|
|
* @param string $description a description in the list of embedded files
|
|
*/
|
|
public function addEmbeddedFile(string $filepath, string $embeddedFilename, string $description): void
|
|
{
|
|
$this->numObj++;
|
|
$this->o_embedded_file_dictionary(
|
|
$this->numObj,
|
|
'new',
|
|
[
|
|
'filepath' => $filepath,
|
|
'filename' => $embeddedFilename,
|
|
'description' => $description
|
|
]
|
|
);
|
|
}
|
|
|
|
/**
|
|
* add content to the documents info object
|
|
*
|
|
* @param $label
|
|
* @param int $value
|
|
*/
|
|
function addInfo($label, $value = 0)
|
|
{
|
|
// this will only work if the label is one of the valid ones.
|
|
// modify this so that arrays can be passed as well.
|
|
// if $label is an array then assume that it is key => value pairs
|
|
// else assume that they are both scalar, anything else will probably error
|
|
if (is_array($label)) {
|
|
foreach ($label as $l => $v) {
|
|
$this->o_info($this->infoObject, $l, $v);
|
|
}
|
|
} else {
|
|
$this->o_info($this->infoObject, $label, $value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* set the viewer preferences of the document, it is up to the browser to obey these.
|
|
*
|
|
* @param $label
|
|
* @param int $value
|
|
*/
|
|
function setPreferences($label, $value = 0)
|
|
{
|
|
// this will only work if the label is one of the valid ones.
|
|
if (is_array($label)) {
|
|
foreach ($label as $l => $v) {
|
|
$this->o_catalog($this->catalogId, 'viewerPreferences', [$l => $v]);
|
|
}
|
|
} else {
|
|
$this->o_catalog($this->catalogId, 'viewerPreferences', [$label => $value]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* extract an integer from a position in a byte stream
|
|
*
|
|
* @param $data
|
|
* @param $pos
|
|
* @param $num
|
|
* @return int
|
|
*/
|
|
private function getBytes(&$data, $pos, $num)
|
|
{
|
|
// return the integer represented by $num bytes from $pos within $data
|
|
$ret = 0;
|
|
for ($i = 0; $i < $num; $i++) {
|
|
$ret *= 256;
|
|
$ret += ord($data[$pos + $i]);
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* Check if image already added to pdf image directory.
|
|
* If yes, need not to create again (pass empty data)
|
|
*
|
|
* @param $imgname
|
|
* @return bool
|
|
*/
|
|
function image_iscached($imgname)
|
|
{
|
|
return isset($this->imagelist[$imgname]);
|
|
}
|
|
|
|
/**
|
|
* add a PNG image into the document, from a GD object
|
|
* this should work with remote files
|
|
*
|
|
* @param resource $img A GD resource
|
|
* @param string $file The PNG file
|
|
* @param float $x X position
|
|
* @param float $y Y position
|
|
* @param float $w Width
|
|
* @param float $h Height
|
|
* @param bool $is_mask true if the image is a mask
|
|
* @param bool $mask true if the image is masked
|
|
* @throws Exception
|
|
*/
|
|
function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
|
|
{
|
|
if (!function_exists("imagepng")) {
|
|
throw new \Exception("The PHP GD extension is required, but is not installed.");
|
|
}
|
|
|
|
//if already cached, need not to read again
|
|
if (isset($this->imagelist[$file])) {
|
|
$data = null;
|
|
} else {
|
|
// Example for transparency handling on new image. Retain for current image
|
|
// $tIndex = imagecolortransparent($img);
|
|
// if ($tIndex > 0) {
|
|
// $tColor = imagecolorsforindex($img, $tIndex);
|
|
// $new_tIndex = imagecolorallocate($new_img, $tColor['red'], $tColor['green'], $tColor['blue']);
|
|
// imagefill($new_img, 0, 0, $new_tIndex);
|
|
// imagecolortransparent($new_img, $new_tIndex);
|
|
// }
|
|
// blending mode (literal/blending) on drawing into current image. not relevant when not saved or not drawn
|
|
//imagealphablending($img, true);
|
|
|
|
//default, but explicitely set to ensure pdf compatibility
|
|
imagesavealpha($img, false/*!$is_mask && !$mask*/);
|
|
|
|
$error = 0;
|
|
//DEBUG_IMG_TEMP
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addImagePng ' . $file . ']';
|
|
}
|
|
|
|
ob_start();
|
|
@imagepng($img);
|
|
$data = ob_get_clean();
|
|
|
|
if ($data == '') {
|
|
$error = 1;
|
|
$errormsg = 'trouble writing file from GD';
|
|
//DEBUG_IMG_TEMP
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print 'trouble writing file from GD';
|
|
}
|
|
}
|
|
|
|
if ($error) {
|
|
$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
|
|
|
|
return;
|
|
}
|
|
} //End isset($this->imagelist[$file]) (png Duplicate removal)
|
|
|
|
$this->addPngFromBuf($data, $file, $x, $y, $w, $h, $is_mask, $mask);
|
|
}
|
|
|
|
/**
|
|
* @param $file
|
|
* @param $x
|
|
* @param $y
|
|
* @param $w
|
|
* @param $h
|
|
* @param $byte
|
|
*/
|
|
protected function addImagePngAlpha($file, $x, $y, $w, $h, $byte)
|
|
{
|
|
// generate images
|
|
$img = imagecreatefrompng($file);
|
|
|
|
if ($img === false) {
|
|
return;
|
|
}
|
|
|
|
// FIXME The pixel transformation doesn't work well with 8bit PNGs
|
|
$eight_bit = ($byte & 4) !== 4;
|
|
|
|
$wpx = imagesx($img);
|
|
$hpx = imagesy($img);
|
|
|
|
imagesavealpha($img, false);
|
|
|
|
// create temp alpha file
|
|
$tempfile_alpha = @tempnam($this->tmp, "cpdf_img_");
|
|
@unlink($tempfile_alpha);
|
|
$tempfile_alpha = "$tempfile_alpha.png";
|
|
|
|
// create temp plain file
|
|
$tempfile_plain = @tempnam($this->tmp, "cpdf_img_");
|
|
@unlink($tempfile_plain);
|
|
$tempfile_plain = "$tempfile_plain.png";
|
|
|
|
$imgalpha = imagecreate($wpx, $hpx);
|
|
imagesavealpha($imgalpha, false);
|
|
|
|
// generate gray scale palette (0 -> 255)
|
|
for ($c = 0; $c < 256; ++$c) {
|
|
imagecolorallocate($imgalpha, $c, $c, $c);
|
|
}
|
|
|
|
// Use PECL gmagick + Graphics Magic to process transparent PNG images
|
|
if (extension_loaded("gmagick")) {
|
|
$gmagick = new \Gmagick($file);
|
|
$gmagick->setimageformat('png');
|
|
|
|
// Get opacity channel (negative of alpha channel)
|
|
$alpha_channel_neg = clone $gmagick;
|
|
$alpha_channel_neg->separateimagechannel(\Gmagick::CHANNEL_OPACITY);
|
|
|
|
// Negate opacity channel
|
|
$alpha_channel = new \Gmagick();
|
|
$alpha_channel->newimage($wpx, $hpx, "#FFFFFF", "png");
|
|
$alpha_channel->compositeimage($alpha_channel_neg, \Gmagick::COMPOSITE_DIFFERENCE, 0, 0);
|
|
$alpha_channel->separateimagechannel(\Gmagick::CHANNEL_RED);
|
|
$alpha_channel->writeimage($tempfile_alpha);
|
|
|
|
// Cast to 8bit+palette
|
|
$imgalpha_ = imagecreatefrompng($tempfile_alpha);
|
|
imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
|
|
imagedestroy($imgalpha_);
|
|
imagepng($imgalpha, $tempfile_alpha);
|
|
|
|
// Make opaque image
|
|
$color_channels = new \Gmagick();
|
|
$color_channels->newimage($wpx, $hpx, "#FFFFFF", "png");
|
|
$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYRED, 0, 0);
|
|
$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYGREEN, 0, 0);
|
|
$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYBLUE, 0, 0);
|
|
$color_channels->writeimage($tempfile_plain);
|
|
|
|
$imgplain = imagecreatefrompng($tempfile_plain);
|
|
}
|
|
// Use PECL imagick + ImageMagic to process transparent PNG images
|
|
elseif (extension_loaded("imagick")) {
|
|
// Native cloning was added to pecl-imagick in svn commit 263814
|
|
// the first version containing it was 3.0.1RC1
|
|
static $imagickClonable = null;
|
|
if ($imagickClonable === null) {
|
|
$imagickClonable = version_compare(\Imagick::IMAGICK_EXTVER, '3.0.1rc1') > 0;
|
|
}
|
|
|
|
$imagick = new \Imagick($file);
|
|
$imagick->setFormat('png');
|
|
|
|
// Get opacity channel (negative of alpha channel)
|
|
if ($imagick->getImageAlphaChannel() !== 0) {
|
|
$alpha_channel = $imagickClonable ? clone $imagick : $imagick->clone();
|
|
$alpha_channel->separateImageChannel(\Imagick::CHANNEL_ALPHA);
|
|
// Since ImageMagick7 negate invert transparency as default
|
|
if (\Imagick::getVersion()['versionNumber'] < 1800) {
|
|
$alpha_channel->negateImage(true);
|
|
}
|
|
$alpha_channel->writeImage($tempfile_alpha);
|
|
|
|
// Cast to 8bit+palette
|
|
$imgalpha_ = imagecreatefrompng($tempfile_alpha);
|
|
imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
|
|
imagedestroy($imgalpha_);
|
|
imagepng($imgalpha, $tempfile_alpha);
|
|
} else {
|
|
$tempfile_alpha = null;
|
|
}
|
|
|
|
// Make opaque image
|
|
$color_channels = new \Imagick();
|
|
$color_channels->newImage($wpx, $hpx, "#FFFFFF", "png");
|
|
$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYRED, 0, 0);
|
|
$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYGREEN, 0, 0);
|
|
$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYBLUE, 0, 0);
|
|
$color_channels->writeImage($tempfile_plain);
|
|
|
|
$imgplain = imagecreatefrompng($tempfile_plain);
|
|
} else {
|
|
// allocated colors cache
|
|
$allocated_colors = [];
|
|
|
|
// extract alpha channel
|
|
for ($xpx = 0; $xpx < $wpx; ++$xpx) {
|
|
for ($ypx = 0; $ypx < $hpx; ++$ypx) {
|
|
$color = imagecolorat($img, $xpx, $ypx);
|
|
$col = imagecolorsforindex($img, $color);
|
|
$alpha = $col['alpha'];
|
|
|
|
if ($eight_bit) {
|
|
// with gamma correction
|
|
$gammacorr = 2.2;
|
|
$pixel = pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255;
|
|
} else {
|
|
// without gamma correction
|
|
$pixel = (127 - $alpha) * 2;
|
|
|
|
$key = $col['red'] . $col['green'] . $col['blue'];
|
|
|
|
if (!isset($allocated_colors[$key])) {
|
|
$pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
|
|
$allocated_colors[$key] = $pixel_img;
|
|
} else {
|
|
$pixel_img = $allocated_colors[$key];
|
|
}
|
|
|
|
imagesetpixel($img, $xpx, $ypx, $pixel_img);
|
|
}
|
|
|
|
imagesetpixel($imgalpha, $xpx, $ypx, $pixel);
|
|
}
|
|
}
|
|
|
|
// extract image without alpha channel
|
|
$imgplain = imagecreatetruecolor($wpx, $hpx);
|
|
imagecopy($imgplain, $img, 0, 0, 0, 0, $wpx, $hpx);
|
|
imagedestroy($img);
|
|
|
|
imagepng($imgalpha, $tempfile_alpha);
|
|
imagepng($imgplain, $tempfile_plain);
|
|
}
|
|
|
|
// embed mask image
|
|
if ($tempfile_alpha) {
|
|
$this->addImagePng($imgalpha, $tempfile_alpha, $x, $y, $w, $h, true);
|
|
imagedestroy($imgalpha);
|
|
}
|
|
|
|
// embed image, masked with previously embedded mask
|
|
$this->addImagePng($imgplain, $tempfile_plain, $x, $y, $w, $h, false, ($tempfile_alpha !== null));
|
|
imagedestroy($imgplain);
|
|
|
|
// remove temp files
|
|
if ($tempfile_alpha) {
|
|
unlink($tempfile_alpha);
|
|
}
|
|
unlink($tempfile_plain);
|
|
}
|
|
|
|
/**
|
|
* add a PNG image into the document, from a file
|
|
* this should work with remote files
|
|
*
|
|
* @param $file
|
|
* @param $x
|
|
* @param $y
|
|
* @param int $w
|
|
* @param int $h
|
|
* @throws Exception
|
|
*/
|
|
function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
|
|
{
|
|
if (!function_exists("imagecreatefrompng")) {
|
|
throw new \Exception("The PHP GD extension is required, but is not installed.");
|
|
}
|
|
|
|
//if already cached, need not to read again
|
|
if (isset($this->imagelist[$file])) {
|
|
$img = null;
|
|
} else {
|
|
$info = file_get_contents($file, false, null, 24, 5);
|
|
$meta = unpack("CbitDepth/CcolorType/CcompressionMethod/CfilterMethod/CinterlaceMethod", $info);
|
|
$bit_depth = $meta["bitDepth"];
|
|
$color_type = $meta["colorType"];
|
|
|
|
// http://www.w3.org/TR/PNG/#11IHDR
|
|
// 3 => indexed
|
|
// 4 => greyscale with alpha
|
|
// 6 => fullcolor with alpha
|
|
$is_alpha = in_array($color_type, [4, 6]) || ($color_type == 3 && $bit_depth != 4);
|
|
|
|
if ($is_alpha) { // exclude grayscale alpha
|
|
$this->addImagePngAlpha($file, $x, $y, $w, $h, $color_type);
|
|
return;
|
|
}
|
|
|
|
//png files typically contain an alpha channel.
|
|
//pdf file format or class.pdf does not support alpha blending.
|
|
//on alpha blended images, more transparent areas have a color near black.
|
|
//This appears in the result on not storing the alpha channel.
|
|
//Correct would be the box background image or its parent when transparent.
|
|
//But this would make the image dependent on the background.
|
|
//Therefore create an image with white background and copy in
|
|
//A more natural background than black is white.
|
|
//Therefore create an empty image with white background and merge the
|
|
//image in with alpha blending.
|
|
$imgtmp = @imagecreatefrompng($file);
|
|
if (!$imgtmp) {
|
|
return;
|
|
}
|
|
$sx = imagesx($imgtmp);
|
|
$sy = imagesy($imgtmp);
|
|
$img = imagecreatetruecolor($sx, $sy);
|
|
imagealphablending($img, true);
|
|
|
|
// @todo is it still needed ??
|
|
$ti = imagecolortransparent($imgtmp);
|
|
if ($ti >= 0) {
|
|
$tc = imagecolorsforindex($imgtmp, $ti);
|
|
$ti = imagecolorallocate($img, $tc['red'], $tc['green'], $tc['blue']);
|
|
imagefill($img, 0, 0, $ti);
|
|
imagecolortransparent($img, $ti);
|
|
} else {
|
|
imagefill($img, 1, 1, imagecolorallocate($img, 255, 255, 255));
|
|
}
|
|
|
|
imagecopy($img, $imgtmp, 0, 0, 0, 0, $sx, $sy);
|
|
imagedestroy($imgtmp);
|
|
}
|
|
$this->addImagePng($img, $file, $x, $y, $w, $h);
|
|
|
|
if ($img) {
|
|
imagedestroy($img);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* add a PNG image into the document, from a file
|
|
* this should work with remote files
|
|
*
|
|
* @param $file
|
|
* @param $x
|
|
* @param $y
|
|
* @param int $w
|
|
* @param int $h
|
|
*/
|
|
function addSvgFromFile($file, $x, $y, $w = 0, $h = 0)
|
|
{
|
|
$doc = new \Svg\Document();
|
|
$doc->loadFile($file);
|
|
$dimensions = $doc->getDimensions();
|
|
|
|
$this->save();
|
|
|
|
$this->transform([$w / $dimensions["width"], 0, 0, $h / $dimensions["height"], $x, $y]);
|
|
|
|
$surface = new \Svg\Surface\SurfaceCpdf($doc, $this);
|
|
$doc->render($surface);
|
|
|
|
$this->restore();
|
|
}
|
|
|
|
/**
|
|
* add a PNG image into the document, from a memory buffer of the file
|
|
*
|
|
* @param $data
|
|
* @param $file
|
|
* @param $x
|
|
* @param $y
|
|
* @param float $w
|
|
* @param float $h
|
|
* @param bool $is_mask
|
|
* @param null $mask
|
|
*/
|
|
function addPngFromBuf(&$data, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
|
|
{
|
|
if (isset($this->imagelist[$file])) {
|
|
$data = null;
|
|
$info['width'] = $this->imagelist[$file]['w'];
|
|
$info['height'] = $this->imagelist[$file]['h'];
|
|
$label = $this->imagelist[$file]['label'];
|
|
} else {
|
|
if ($data == null) {
|
|
$this->addMessage('addPngFromBuf error - data not present!');
|
|
|
|
return;
|
|
}
|
|
|
|
$error = 0;
|
|
|
|
if (!$error) {
|
|
$header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
|
|
|
|
if (mb_substr($data, 0, 8, '8bit') != $header) {
|
|
$error = 1;
|
|
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile this file does not have a valid header ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'this file does not have a valid header';
|
|
}
|
|
}
|
|
|
|
if (!$error) {
|
|
// set pointer
|
|
$p = 8;
|
|
$len = mb_strlen($data, '8bit');
|
|
|
|
// cycle through the file, identifying chunks
|
|
$haveHeader = 0;
|
|
$info = [];
|
|
$idata = '';
|
|
$pdata = '';
|
|
|
|
while ($p < $len) {
|
|
$chunkLen = $this->getBytes($data, $p, 4);
|
|
$chunkType = mb_substr($data, $p + 4, 4, '8bit');
|
|
|
|
switch ($chunkType) {
|
|
case 'IHDR':
|
|
// this is where all the file information comes from
|
|
$info['width'] = $this->getBytes($data, $p + 8, 4);
|
|
$info['height'] = $this->getBytes($data, $p + 12, 4);
|
|
$info['bitDepth'] = ord($data[$p + 16]);
|
|
$info['colorType'] = ord($data[$p + 17]);
|
|
$info['compressionMethod'] = ord($data[$p + 18]);
|
|
$info['filterMethod'] = ord($data[$p + 19]);
|
|
$info['interlaceMethod'] = ord($data[$p + 20]);
|
|
|
|
//print_r($info);
|
|
$haveHeader = 1;
|
|
if ($info['compressionMethod'] != 0) {
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile unsupported compression method ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'unsupported compression method';
|
|
}
|
|
|
|
if ($info['filterMethod'] != 0) {
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile unsupported filter method ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'unsupported filter method';
|
|
}
|
|
break;
|
|
|
|
case 'PLTE':
|
|
$pdata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
|
|
break;
|
|
|
|
case 'IDAT':
|
|
$idata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
|
|
break;
|
|
|
|
case 'tRNS':
|
|
//this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
|
|
//print "tRNS found, color type = ".$info['colorType']."\n";
|
|
$transparency = [];
|
|
|
|
switch ($info['colorType']) {
|
|
// indexed color, rbg
|
|
case 3:
|
|
/* corresponding to entries in the plte chunk
|
|
Alpha for palette index 0: 1 byte
|
|
Alpha for palette index 1: 1 byte
|
|
...etc...
|
|
*/
|
|
// there will be one entry for each palette entry. up until the last non-opaque entry.
|
|
// set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
|
|
$transparency['type'] = 'indexed';
|
|
$trans = 0;
|
|
|
|
for ($i = $chunkLen; $i >= 0; $i--) {
|
|
if (ord($data[$p + 8 + $i]) == 0) {
|
|
$trans = $i;
|
|
}
|
|
}
|
|
|
|
$transparency['data'] = $trans;
|
|
break;
|
|
|
|
// grayscale
|
|
case 0:
|
|
/* corresponding to entries in the plte chunk
|
|
Gray: 2 bytes, range 0 .. (2^bitdepth)-1
|
|
*/
|
|
// $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
|
|
$transparency['type'] = 'indexed';
|
|
$transparency['data'] = ord($data[$p + 8 + 1]);
|
|
break;
|
|
|
|
// truecolor
|
|
case 2:
|
|
/* corresponding to entries in the plte chunk
|
|
Red: 2 bytes, range 0 .. (2^bitdepth)-1
|
|
Green: 2 bytes, range 0 .. (2^bitdepth)-1
|
|
Blue: 2 bytes, range 0 .. (2^bitdepth)-1
|
|
*/
|
|
$transparency['r'] = $this->getBytes($data, $p + 8, 2);
|
|
// r from truecolor
|
|
$transparency['g'] = $this->getBytes($data, $p + 10, 2);
|
|
// g from truecolor
|
|
$transparency['b'] = $this->getBytes($data, $p + 12, 2);
|
|
// b from truecolor
|
|
|
|
$transparency['type'] = 'color-key';
|
|
break;
|
|
|
|
//unsupported transparency type
|
|
default:
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile unsupported transparency type ' . $file . ']';
|
|
}
|
|
break;
|
|
}
|
|
|
|
// KS End new code
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
$p += $chunkLen + 12;
|
|
}
|
|
|
|
if (!$haveHeader) {
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile information header is missing ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'information header is missing';
|
|
}
|
|
|
|
if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'There appears to be no support for interlaced images in pdf.';
|
|
}
|
|
}
|
|
|
|
if (!$error && $info['bitDepth'] > 8) {
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'only bit depth of 8 or less is supported';
|
|
}
|
|
|
|
if (!$error) {
|
|
switch ($info['colorType']) {
|
|
case 3:
|
|
$color = 'DeviceRGB';
|
|
$ncolor = 1;
|
|
break;
|
|
|
|
case 2:
|
|
$color = 'DeviceRGB';
|
|
$ncolor = 3;
|
|
break;
|
|
|
|
case 0:
|
|
$color = 'DeviceGray';
|
|
$ncolor = 1;
|
|
break;
|
|
|
|
default:
|
|
$error = 1;
|
|
|
|
//debugpng
|
|
if (defined("DEBUGPNG") && DEBUGPNG) {
|
|
print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
|
|
}
|
|
|
|
$errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
|
|
}
|
|
}
|
|
|
|
if ($error) {
|
|
$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
|
|
|
|
return;
|
|
}
|
|
|
|
//print_r($info);
|
|
// so this image is ok... add it in.
|
|
$this->numImages++;
|
|
$im = $this->numImages;
|
|
$label = "I$im";
|
|
$this->numObj++;
|
|
|
|
// $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
|
|
$options = [
|
|
'label' => $label,
|
|
'data' => $idata,
|
|
'bitsPerComponent' => $info['bitDepth'],
|
|
'pdata' => $pdata,
|
|
'iw' => $info['width'],
|
|
'ih' => $info['height'],
|
|
'type' => 'png',
|
|
'color' => $color,
|
|
'ncolor' => $ncolor,
|
|
'masked' => $mask,
|
|
'isMask' => $is_mask
|
|
];
|
|
|
|
if (isset($transparency)) {
|
|
$options['transparency'] = $transparency;
|
|
}
|
|
|
|
$this->o_image($this->numObj, 'new', $options);
|
|
$this->imagelist[$file] = ['label' => $label, 'w' => $info['width'], 'h' => $info['height']];
|
|
}
|
|
|
|
if ($is_mask) {
|
|
return;
|
|
}
|
|
|
|
if ($w <= 0 && $h <= 0) {
|
|
$w = $info['width'];
|
|
$h = $info['height'];
|
|
}
|
|
|
|
if ($w <= 0) {
|
|
$w = $h / $info['height'] * $info['width'];
|
|
}
|
|
|
|
if ($h <= 0) {
|
|
$h = $w * $info['height'] / $info['width'];
|
|
}
|
|
|
|
$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ", $w, $h, $x, $y, $label));
|
|
}
|
|
|
|
/**
|
|
* add a JPEG image into the document, from a file
|
|
*
|
|
* @param $img
|
|
* @param $x
|
|
* @param $y
|
|
* @param int $w
|
|
* @param int $h
|
|
*/
|
|
function addJpegFromFile($img, $x, $y, $w = 0, $h = 0)
|
|
{
|
|
// attempt to add a jpeg image straight from a file, using no GD commands
|
|
// note that this function is unable to operate on a remote file.
|
|
|
|
if (!file_exists($img)) {
|
|
return;
|
|
}
|
|
|
|
if ($this->image_iscached($img)) {
|
|
$data = null;
|
|
$imageWidth = $this->imagelist[$img]['w'];
|
|
$imageHeight = $this->imagelist[$img]['h'];
|
|
$channels = $this->imagelist[$img]['c'];
|
|
} else {
|
|
$tmp = getimagesize($img);
|
|
$imageWidth = $tmp[0];
|
|
$imageHeight = $tmp[1];
|
|
|
|
if (isset($tmp['channels'])) {
|
|
$channels = $tmp['channels'];
|
|
} else {
|
|
$channels = 3;
|
|
}
|
|
|
|
$data = file_get_contents($img);
|
|
}
|
|
|
|
if ($w <= 0 && $h <= 0) {
|
|
$w = $imageWidth;
|
|
}
|
|
|
|
if ($w == 0) {
|
|
$w = $h / $imageHeight * $imageWidth;
|
|
}
|
|
|
|
if ($h == 0) {
|
|
$h = $w * $imageHeight / $imageWidth;
|
|
}
|
|
|
|
$this->addJpegImage_common($data, $img, $imageWidth, $imageHeight, $x, $y, $w, $h, $channels);
|
|
}
|
|
|
|
/**
|
|
* common code used by the two JPEG adding functions
|
|
* @param $data
|
|
* @param $imgname
|
|
* @param $imageWidth
|
|
* @param $imageHeight
|
|
* @param $x
|
|
* @param $y
|
|
* @param int $w
|
|
* @param int $h
|
|
* @param int $channels
|
|
*/
|
|
private function addJpegImage_common(
|
|
&$data,
|
|
$imgname,
|
|
$imageWidth,
|
|
$imageHeight,
|
|
$x,
|
|
$y,
|
|
$w = 0,
|
|
$h = 0,
|
|
$channels = 3
|
|
) {
|
|
if ($this->image_iscached($imgname)) {
|
|
$label = $this->imagelist[$imgname]['label'];
|
|
//debugpng
|
|
//if (DEBUGPNG) print '[addJpegImage_common Duplicate '.$imgname.']';
|
|
|
|
} else {
|
|
if ($data == null) {
|
|
$this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
|
|
|
|
return;
|
|
}
|
|
|
|
// note that this function is not to be called externally
|
|
// it is just the common code between the GD and the file options
|
|
$this->numImages++;
|
|
$im = $this->numImages;
|
|
$label = "I$im";
|
|
$this->numObj++;
|
|
|
|
$this->o_image(
|
|
$this->numObj,
|
|
'new',
|
|
[
|
|
'label' => $label,
|
|
'data' => &$data,
|
|
'iw' => $imageWidth,
|
|
'ih' => $imageHeight,
|
|
'channels' => $channels
|
|
]
|
|
);
|
|
|
|
$this->imagelist[$imgname] = [
|
|
'label' => $label,
|
|
'w' => $imageWidth,
|
|
'h' => $imageHeight,
|
|
'c' => $channels
|
|
];
|
|
}
|
|
|
|
$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ ", $w, $h, $x, $y, $label));
|
|
}
|
|
|
|
/**
|
|
* specify where the document should open when it first starts
|
|
*
|
|
* @param $style
|
|
* @param int $a
|
|
* @param int $b
|
|
* @param int $c
|
|
*/
|
|
function openHere($style, $a = 0, $b = 0, $c = 0)
|
|
{
|
|
// this function will open the document at a specified page, in a specified style
|
|
// the values for style, and the required parameters are:
|
|
// 'XYZ' left, top, zoom
|
|
// 'Fit'
|
|
// 'FitH' top
|
|
// 'FitV' left
|
|
// 'FitR' left,bottom,right
|
|
// 'FitB'
|
|
// 'FitBH' top
|
|
// 'FitBV' left
|
|
$this->numObj++;
|
|
$this->o_destination(
|
|
$this->numObj,
|
|
'new',
|
|
['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
|
|
);
|
|
$id = $this->catalogId;
|
|
$this->o_catalog($id, 'openHere', $this->numObj);
|
|
}
|
|
|
|
/**
|
|
* Add JavaScript code to the PDF document
|
|
*
|
|
* @param string $code
|
|
*/
|
|
function addJavascript($code)
|
|
{
|
|
$this->javascript .= $code;
|
|
}
|
|
|
|
/**
|
|
* create a labelled destination within the document
|
|
*
|
|
* @param $label
|
|
* @param $style
|
|
* @param int $a
|
|
* @param int $b
|
|
* @param int $c
|
|
*/
|
|
function addDestination($label, $style, $a = 0, $b = 0, $c = 0)
|
|
{
|
|
// associates the given label with the destination, it is done this way so that a destination can be specified after
|
|
// it has been linked to
|
|
// styles are the same as the 'openHere' function
|
|
$this->numObj++;
|
|
$this->o_destination(
|
|
$this->numObj,
|
|
'new',
|
|
['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
|
|
);
|
|
$id = $this->numObj;
|
|
|
|
// store the label->idf relationship, note that this means that labels can be used only once
|
|
$this->destinations["$label"] = $id;
|
|
}
|
|
|
|
/**
|
|
* define font families, this is used to initialize the font families for the default fonts
|
|
* and for the user to add new ones for their fonts. The default bahavious can be overridden should
|
|
* that be desired.
|
|
*
|
|
* @param $family
|
|
* @param string $options
|
|
*/
|
|
function setFontFamily($family, $options = '')
|
|
{
|
|
if (!is_array($options)) {
|
|
if ($family === 'init') {
|
|
// set the known family groups
|
|
// these font families will be used to enable bold and italic markers to be included
|
|
// within text streams. html forms will be used... <b></b> <i></i>
|
|
$this->fontFamilies['Helvetica.afm'] =
|
|
[
|
|
'b' => 'Helvetica-Bold.afm',
|
|
'i' => 'Helvetica-Oblique.afm',
|
|
'bi' => 'Helvetica-BoldOblique.afm',
|
|
'ib' => 'Helvetica-BoldOblique.afm'
|
|
];
|
|
|
|
$this->fontFamilies['Courier.afm'] =
|
|
[
|
|
'b' => 'Courier-Bold.afm',
|
|
'i' => 'Courier-Oblique.afm',
|
|
'bi' => 'Courier-BoldOblique.afm',
|
|
'ib' => 'Courier-BoldOblique.afm'
|
|
];
|
|
|
|
$this->fontFamilies['Times-Roman.afm'] =
|
|
[
|
|
'b' => 'Times-Bold.afm',
|
|
'i' => 'Times-Italic.afm',
|
|
'bi' => 'Times-BoldItalic.afm',
|
|
'ib' => 'Times-BoldItalic.afm'
|
|
];
|
|
}
|
|
} else {
|
|
|
|
// the user is trying to set a font family
|
|
// note that this can also be used to set the base ones to something else
|
|
if (mb_strlen($family)) {
|
|
$this->fontFamilies[$family] = $options;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* used to add messages for use in debugging
|
|
*
|
|
* @param $message
|
|
*/
|
|
function addMessage($message)
|
|
{
|
|
$this->messages .= $message . "\n";
|
|
}
|
|
|
|
/**
|
|
* a few functions which should allow the document to be treated transactionally.
|
|
*
|
|
* @param $action
|
|
*/
|
|
function transaction($action)
|
|
{
|
|
switch ($action) {
|
|
case 'start':
|
|
// store all the data away into the checkpoint variable
|
|
$data = get_object_vars($this);
|
|
$this->checkpoint = $data;
|
|
unset($data);
|
|
break;
|
|
|
|
case 'commit':
|
|
if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
|
|
$tmp = $this->checkpoint['checkpoint'];
|
|
$this->checkpoint = $tmp;
|
|
unset($tmp);
|
|
} else {
|
|
$this->checkpoint = '';
|
|
}
|
|
break;
|
|
|
|
case 'rewind':
|
|
// do not destroy the current checkpoint, but move us back to the state then, so that we can try again
|
|
if (is_array($this->checkpoint)) {
|
|
// can only abort if were inside a checkpoint
|
|
$tmp = $this->checkpoint;
|
|
|
|
foreach ($tmp as $k => $v) {
|
|
if ($k !== 'checkpoint') {
|
|
$this->$k = $v;
|
|
}
|
|
}
|
|
unset($tmp);
|
|
}
|
|
break;
|
|
|
|
case 'abort':
|
|
if (is_array($this->checkpoint)) {
|
|
// can only abort if were inside a checkpoint
|
|
$tmp = $this->checkpoint;
|
|
foreach ($tmp as $k => $v) {
|
|
$this->$k = $v;
|
|
}
|
|
unset($tmp);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|