root
2075 lines
66 KiB
PHP
2075 lines
66 KiB
PHP
<?php
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/*******************************************************************************
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* FPDF *
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* *
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* Version: 1.86 *
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* Date: 2023-06-25 *
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* Author: Olivier PLATHEY *
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*******************************************************************************/
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class FPDF
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{
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const VERSION = '1.86';
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protected $page; // current page number
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protected $n; // current object number
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protected $offsets; // array of object offsets
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protected $buffer; // buffer holding in-memory PDF
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protected $pages; // array containing pages
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protected $state; // current document state
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protected $compress; // compression flag
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protected $iconv; // whether iconv is available
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protected $k; // scale factor (number of points in user unit)
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protected $DefOrientation; // default orientation
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protected $CurOrientation; // current orientation
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protected $StdPageSizes; // standard page sizes
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protected $DefPageSize; // default page size
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protected $CurPageSize; // current page size
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protected $CurRotation; // current page rotation
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protected $PageInfo; // page-related data
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protected $wPt;
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protected $hPt; // dimensions of current page in points
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protected $w;
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protected $h; // dimensions of current page in user unit
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protected $lMargin; // left margin
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protected $tMargin; // top margin
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protected $rMargin; // right margin
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protected $bMargin; // page break margin
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protected $cMargin; // cell margin
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protected $x;
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protected $y; // current position in user unit
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protected $lasth; // height of last printed cell
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protected $LineWidth; // line width in user unit
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protected $fontpath; // directory containing fonts
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protected $CoreFonts; // array of core font names
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protected $fonts; // array of used fonts
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protected $FontFiles; // array of font files
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protected $encodings; // array of encodings
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protected $cmaps; // array of ToUnicode CMaps
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protected $FontFamily; // current font family
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protected $FontStyle; // current font style
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protected $underline; // underlining flag
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protected $CurrentFont; // current font info
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protected $FontSizePt; // current font size in points
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protected $FontSize; // current font size in user unit
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protected $DrawColor; // commands for drawing color
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protected $FillColor; // commands for filling color
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protected $TextColor; // commands for text color
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protected $ColorFlag; // indicates whether fill and text colors are different
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protected $WithAlpha; // indicates whether alpha channel is used
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protected $ws; // word spacing
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protected $images; // array of used images
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protected $PageLinks; // array of links in pages
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protected $links; // array of internal links
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protected $AutoPageBreak; // automatic page breaking
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protected $PageBreakTrigger; // threshold used to trigger page breaks
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protected $InHeader; // flag set when processing header
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protected $InFooter; // flag set when processing footer
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protected $AliasNbPages; // alias for total number of pages
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protected $ZoomMode; // zoom display mode
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protected $LayoutMode; // layout display mode
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protected $metadata; // document properties
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protected $CreationDate; // document creation date
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protected $PDFVersion; // PDF version number
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/*******************************************************************************
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* Public methods *
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*******************************************************************************/
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public function __construct($orientation = 'P', $unit = 'mm', $size = 'A4')
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{
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// FIXED: Set font path directly
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$this->fontpath = __DIR__.'/font/';
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// Initialization of properties
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$this->state = 0;
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$this->page = 0;
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$this->n = 2;
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$this->buffer = '';
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$this->pages = [];
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$this->PageInfo = [];
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$this->fonts = [];
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$this->FontFiles = [];
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$this->encodings = [];
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$this->cmaps = [];
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$this->images = [];
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$this->links = [];
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$this->InHeader = false;
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$this->InFooter = false;
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$this->lasth = 0;
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$this->FontFamily = '';
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$this->FontStyle = '';
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$this->FontSizePt = 12;
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$this->underline = false;
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$this->DrawColor = '0 G';
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$this->FillColor = '0 g';
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$this->TextColor = '0 g';
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$this->ColorFlag = false;
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$this->WithAlpha = false;
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$this->ws = 0;
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$this->iconv = function_exists('iconv');
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// Core fonts
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$this->CoreFonts = ['courier', 'helvetica', 'times', 'symbol', 'zapfdingbats'];
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// Scale factor
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if ($unit == 'pt') {
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$this->k = 1;
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} elseif ($unit == 'mm') {
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$this->k = 72 / 25.4;
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} elseif ($unit == 'cm') {
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$this->k = 72 / 2.54;
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} elseif ($unit == 'in') {
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$this->k = 72;
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} else {
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$this->Error('Incorrect unit: '.$unit);
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}
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// Page sizes
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$this->StdPageSizes = [
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'a3' => [841.89, 1190.55],
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'a4' => [595.28, 841.89],
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'a5' => [420.94, 595.28],
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'letter' => [612, 792],
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'legal' => [612, 1008],
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];
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$size = $this->_getpagesize($size);
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$this->DefPageSize = $size;
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$this->CurPageSize = $size;
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// Page orientation
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$orientation = strtolower($orientation);
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if ($orientation == 'p' || $orientation == 'portrait') {
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$this->DefOrientation = 'P';
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$this->w = $size[0];
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$this->h = $size[1];
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} elseif ($orientation == 'l' || $orientation == 'landscape') {
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$this->DefOrientation = 'L';
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$this->w = $size[1];
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$this->h = $size[0];
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} else {
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$this->Error('Incorrect orientation: '.$orientation);
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}
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$this->CurOrientation = $this->DefOrientation;
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$this->wPt = $this->w * $this->k;
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$this->hPt = $this->h * $this->k;
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// Page rotation
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$this->CurRotation = 0;
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// Margins
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$margin = 28.35 / $this->k;
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$this->SetMargins($margin, $margin);
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$this->cMargin = $margin / 10;
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$this->LineWidth = .567 / $this->k;
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// Page break
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$this->SetAutoPageBreak(true, 2 * $margin);
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// Display and compression
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$this->SetDisplayMode('default');
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$this->SetCompression(true);
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// Metadata
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$this->metadata = ['Producer' => 'FPDF '.self::VERSION];
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$this->PDFVersion = '1.3';
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}
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public function SetMargins($left, $top, $right = null)
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{
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// Set left, top and right margins
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$this->lMargin = $left;
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$this->tMargin = $top;
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if ($right === null) {
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$right = $left;
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}
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$this->rMargin = $right;
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}
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public function SetLeftMargin($margin)
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{
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// Set left margin
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$this->lMargin = $margin;
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if ($this->page > 0 && $this->x < $margin) {
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$this->x = $margin;
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}
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}
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public function SetTopMargin($margin)
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{
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// Set top margin
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$this->tMargin = $margin;
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}
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public function SetRightMargin($margin)
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{
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// Set right margin
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$this->rMargin = $margin;
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}
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public function SetAutoPageBreak($auto, $margin = 0)
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{
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// Set auto page break mode and triggering margin
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$this->AutoPageBreak = $auto;
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$this->bMargin = $margin;
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$this->PageBreakTrigger = $this->h - $margin;
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}
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public function SetDisplayMode($zoom, $layout = 'default')
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{
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// Set display mode in viewer
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if ($zoom == 'fullpage' || $zoom == 'fullwidth' || $zoom == 'real' || $zoom == 'default' || ! is_string($zoom)) {
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$this->ZoomMode = $zoom;
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} else {
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$this->Error('Incorrect zoom display mode: '.$zoom);
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}
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if ($layout == 'single' || $layout == 'continuous' || $layout == 'two' || $layout == 'default') {
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$this->LayoutMode = $layout;
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} else {
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$this->Error('Incorrect layout display mode: '.$layout);
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}
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}
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public function SetCompression($compress)
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{
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// Set page compression
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if (function_exists('gzcompress')) {
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$this->compress = $compress;
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} else {
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$this->compress = false;
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}
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}
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public function SetTitle($title, $isUTF8 = false)
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{
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// Title of document
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$this->metadata['Title'] = $isUTF8 ? $title : $this->_UTF8encode($title);
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}
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public function SetAuthor($author, $isUTF8 = false)
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{
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// Author of document
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$this->metadata['Author'] = $isUTF8 ? $author : $this->_UTF8encode($author);
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}
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public function SetSubject($subject, $isUTF8 = false)
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{
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// Subject of document
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$this->metadata['Subject'] = $isUTF8 ? $subject : $this->_UTF8encode($subject);
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}
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public function SetKeywords($keywords, $isUTF8 = false)
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{
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// Keywords of document
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$this->metadata['Keywords'] = $isUTF8 ? $keywords : $this->_UTF8encode($keywords);
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}
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public function SetCreator($creator, $isUTF8 = false)
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{
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// Creator of document
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$this->metadata['Creator'] = $isUTF8 ? $creator : $this->_UTF8encode($creator);
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}
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public function AliasNbPages($alias = '{nb}')
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{
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// Define an alias for total number of pages
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$this->AliasNbPages = $alias;
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}
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public function Error($msg)
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{
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// Fatal error
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throw new Exception('FPDF error: '.$msg);
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}
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public function Close()
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{
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// Terminate document
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if ($this->state == 3) {
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return;
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}
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if ($this->page == 0) {
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$this->AddPage();
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}
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// Page footer
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$this->InFooter = true;
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$this->Footer();
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$this->InFooter = false;
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// Close page
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$this->_endpage();
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// Close document
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$this->_enddoc();
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}
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public function AddPage($orientation = '', $size = '', $rotation = 0)
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{
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// Start a new page
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if ($this->state == 3) {
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$this->Error('The document is closed');
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}
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$family = $this->FontFamily;
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$style = $this->FontStyle.($this->underline ? 'U' : '');
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$fontsize = $this->FontSizePt;
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$lw = $this->LineWidth;
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$dc = $this->DrawColor;
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$fc = $this->FillColor;
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$tc = $this->TextColor;
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$cf = $this->ColorFlag;
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if ($this->page > 0) {
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// Page footer
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$this->InFooter = true;
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$this->Footer();
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$this->InFooter = false;
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// Close page
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$this->_endpage();
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}
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// Start new page
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$this->_beginpage($orientation, $size, $rotation);
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// Set line cap style to square
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$this->_out('2 J');
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// Set line width
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$this->LineWidth = $lw;
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$this->_out(sprintf('%.2F w', $lw * $this->k));
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// Set font
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if ($family) {
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$this->SetFont($family, $style, $fontsize);
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}
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// Set colors
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$this->DrawColor = $dc;
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if ($dc != '0 G') {
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$this->_out($dc);
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}
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$this->FillColor = $fc;
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if ($fc != '0 g') {
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$this->_out($fc);
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}
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$this->TextColor = $tc;
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$this->ColorFlag = $cf;
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// Page header
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$this->InHeader = true;
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$this->Header();
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$this->InHeader = false;
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// Restore line width
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if ($this->LineWidth != $lw) {
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$this->LineWidth = $lw;
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$this->_out(sprintf('%.2F w', $lw * $this->k));
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}
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// Restore font
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if ($family) {
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$this->SetFont($family, $style, $fontsize);
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}
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// Restore colors
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if ($this->DrawColor != $dc) {
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$this->DrawColor = $dc;
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$this->_out($dc);
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}
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if ($this->FillColor != $fc) {
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$this->FillColor = $fc;
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$this->_out($fc);
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}
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$this->TextColor = $tc;
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$this->ColorFlag = $cf;
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}
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public function Header()
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{
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// To be implemented in your own inherited class
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}
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public function Footer()
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{
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// To be implemented in your own inherited class
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}
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public function PageNo()
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{
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// Get current page number
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return $this->page;
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}
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public function SetDrawColor($r, $g = null, $b = null)
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{
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// Set color for all stroking operations
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if (($r == 0 && $g == 0 && $b == 0) || $g === null) {
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$this->DrawColor = sprintf('%.3F G', $r / 255);
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} else {
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$this->DrawColor = sprintf('%.3F %.3F %.3F RG', $r / 255, $g / 255, $b / 255);
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}
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if ($this->page > 0) {
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$this->_out($this->DrawColor);
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}
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}
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public function SetFillColor($r, $g = null, $b = null)
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{
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// Set color for all filling operations
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if (($r == 0 && $g == 0 && $b == 0) || $g === null) {
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$this->FillColor = sprintf('%.3F g', $r / 255);
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} else {
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$this->FillColor = sprintf('%.3F %.3F %.3F rg', $r / 255, $g / 255, $b / 255);
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}
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$this->ColorFlag = ($this->FillColor != $this->TextColor);
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if ($this->page > 0) {
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$this->_out($this->FillColor);
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}
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}
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public function SetTextColor($r, $g = null, $b = null)
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{
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// Set color for text
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if (($r == 0 && $g == 0 && $b == 0) || $g === null) {
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$this->TextColor = sprintf('%.3F g', $r / 255);
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} else {
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$this->TextColor = sprintf('%.3F %.3F %.3F rg', $r / 255, $g / 255, $b / 255);
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}
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$this->ColorFlag = ($this->FillColor != $this->TextColor);
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}
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public function GetStringWidth($s)
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{
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// Get width of a string in the current font
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$cw = $this->CurrentFont['cw'];
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$w = 0;
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$s = (string) $s;
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$l = strlen($s);
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for ($i = 0; $i < $l; $i++) {
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$w += $cw[$s[$i]];
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}
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return $w * $this->FontSize / 1000;
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}
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public function SetLineWidth($width)
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{
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// Set line width
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$this->LineWidth = $width;
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if ($this->page > 0) {
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$this->_out(sprintf('%.2F w', $width * $this->k));
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}
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}
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public function Line($x1, $y1, $x2, $y2)
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{
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// Draw a line
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$this->_out(sprintf('%.2F %.2F m %.2F %.2F l S', $x1 * $this->k, ($this->h - $y1) * $this->k, $x2 * $this->k, ($this->h - $y2) * $this->k));
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}
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public function Rect($x, $y, $w, $h, $style = '')
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{
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// Draw a rectangle
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if ($style == 'F') {
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$op = 'f';
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} elseif ($style == 'FD' || $style == 'DF') {
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$op = 'B';
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} else {
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$op = 'S';
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}
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$this->_out(sprintf('%.2F %.2F %.2F %.2F re %s', $x * $this->k, ($this->h - $y) * $this->k, $w * $this->k, -$h * $this->k, $op));
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}
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public function AddFont($family, $style = '', $file = '', $dir = '')
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{
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// Add a TrueType, OpenType or Type1 font
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$family = strtolower($family);
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if ($file == '') {
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$file = str_replace(' ', '', $family).strtolower($style).'.php';
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}
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$style = strtoupper($style);
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if ($style == 'IB') {
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$style = 'BI';
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}
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$fontkey = $family.$style;
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if (isset($this->fonts[$fontkey])) {
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return;
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}
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if (strpos($file, '/') !== false || strpos($file, '\\') !== false) {
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$this->Error('Incorrect font definition file name: '.$file);
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}
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if ($dir == '') {
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$dir = $this->fontpath;
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}
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if (substr($dir, -1) != '/' && substr($dir, -1) != '\\') {
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$dir .= '/';
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}
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$info = $this->_loadfont($dir.$file);
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$info['i'] = count($this->fonts) + 1;
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if (! empty($info['file'])) {
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// Embedded font
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$info['file'] = $dir.$info['file'];
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if ($info['type'] == 'TrueType') {
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$this->FontFiles[$info['file']] = ['length1' => $info['originalsize']];
|
|
} else {
|
|
$this->FontFiles[$info['file']] = ['length1' => $info['size1'], 'length2' => $info['size2']];
|
|
}
|
|
}
|
|
$this->fonts[$fontkey] = $info;
|
|
}
|
|
|
|
public function SetFont($family, $style = '', $size = 0)
|
|
{
|
|
// Select a font; size given in points
|
|
if ($family == '') {
|
|
$family = $this->FontFamily;
|
|
} else {
|
|
$family = strtolower($family);
|
|
}
|
|
$style = strtoupper($style);
|
|
if (strpos($style, 'U') !== false) {
|
|
$this->underline = true;
|
|
$style = str_replace('U', '', $style);
|
|
} else {
|
|
$this->underline = false;
|
|
}
|
|
if ($style == 'IB') {
|
|
$style = 'BI';
|
|
}
|
|
if ($size == 0) {
|
|
$size = $this->FontSizePt;
|
|
}
|
|
// Test if font is already selected
|
|
if ($this->FontFamily == $family && $this->FontStyle == $style && $this->FontSizePt == $size) {
|
|
return;
|
|
}
|
|
// Test if font is already loaded
|
|
$fontkey = $family.$style;
|
|
if (! isset($this->fonts[$fontkey])) {
|
|
// Test if one of the core fonts
|
|
if ($family == 'arial') {
|
|
$family = 'helvetica';
|
|
}
|
|
if (in_array($family, $this->CoreFonts)) {
|
|
if ($family == 'symbol' || $family == 'zapfdingbats') {
|
|
$style = '';
|
|
}
|
|
$fontkey = $family.$style;
|
|
if (! isset($this->fonts[$fontkey])) {
|
|
$this->AddFont($family, $style);
|
|
}
|
|
} else {
|
|
$this->Error('Undefined font: '.$family.' '.$style);
|
|
}
|
|
}
|
|
// Select it
|
|
$this->FontFamily = $family;
|
|
$this->FontStyle = $style;
|
|
$this->FontSizePt = $size;
|
|
$this->FontSize = $size / $this->k;
|
|
$this->CurrentFont = $this->fonts[$fontkey];
|
|
if ($this->page > 0) {
|
|
$this->_out(sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt));
|
|
}
|
|
}
|
|
|
|
public function SetFontSize($size)
|
|
{
|
|
// Set font size in points
|
|
if ($this->FontSizePt == $size) {
|
|
return;
|
|
}
|
|
$this->FontSizePt = $size;
|
|
$this->FontSize = $size / $this->k;
|
|
if ($this->page > 0 && isset($this->CurrentFont)) {
|
|
$this->_out(sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt));
|
|
}
|
|
}
|
|
|
|
public function AddLink()
|
|
{
|
|
// Create a new internal link
|
|
$n = count($this->links) + 1;
|
|
$this->links[$n] = [0, 0];
|
|
|
|
return $n;
|
|
}
|
|
|
|
public function SetLink($link, $y = 0, $page = -1)
|
|
{
|
|
// Set destination of internal link
|
|
if ($y == -1) {
|
|
$y = $this->y;
|
|
}
|
|
if ($page == -1) {
|
|
$page = $this->page;
|
|
}
|
|
$this->links[$link] = [$page, $y];
|
|
}
|
|
|
|
public function Link($x, $y, $w, $h, $link)
|
|
{
|
|
// Put a link on the page
|
|
$this->PageLinks[$this->page][] = [$x * $this->k, $this->hPt - $y * $this->k, $w * $this->k, $h * $this->k, $link];
|
|
}
|
|
|
|
public function Text($x, $y, $txt)
|
|
{
|
|
// Output a string
|
|
if (! isset($this->CurrentFont)) {
|
|
$this->Error('No font has been set');
|
|
}
|
|
$txt = (string) $txt;
|
|
$s = sprintf('BT %.2F %.2F Td (%s) Tj ET', $x * $this->k, ($this->h - $y) * $this->k, $this->_escape($txt));
|
|
if ($this->underline && $txt !== '') {
|
|
$s .= ' '.$this->_dounderline($x, $y, $txt);
|
|
}
|
|
if ($this->ColorFlag) {
|
|
$s = 'q '.$this->TextColor.' '.$s.' Q';
|
|
}
|
|
$this->_out($s);
|
|
}
|
|
|
|
public function AcceptPageBreak()
|
|
{
|
|
// Accept automatic page break or not
|
|
return $this->AutoPageBreak;
|
|
}
|
|
|
|
public function Cell($w, $h = 0, $txt = '', $border = 0, $ln = 0, $align = '', $fill = false, $link = '')
|
|
{
|
|
// Output a cell
|
|
$k = $this->k;
|
|
if ($this->y + $h > $this->PageBreakTrigger && ! $this->InHeader && ! $this->InFooter && $this->AcceptPageBreak()) {
|
|
// Automatic page break
|
|
$x = $this->x;
|
|
$ws = $this->ws;
|
|
if ($ws > 0) {
|
|
$this->ws = 0;
|
|
$this->_out('0 Tw');
|
|
}
|
|
$this->AddPage($this->CurOrientation, $this->CurPageSize, $this->CurRotation);
|
|
$this->x = $x;
|
|
if ($ws > 0) {
|
|
$this->ws = $ws;
|
|
$this->_out(sprintf('%.3F Tw', $ws * $k));
|
|
}
|
|
}
|
|
if ($w == 0) {
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
}
|
|
$s = '';
|
|
if ($fill || $border == 1) {
|
|
if ($fill) {
|
|
$op = ($border == 1) ? 'B' : 'f';
|
|
} else {
|
|
$op = 'S';
|
|
}
|
|
$s = sprintf('%.2F %.2F %.2F %.2F re %s ', $this->x * $k, ($this->h - $this->y) * $k, $w * $k, -$h * $k, $op);
|
|
}
|
|
if (is_string($border)) {
|
|
$x = $this->x;
|
|
$y = $this->y;
|
|
if (strpos($border, 'L') !== false) {
|
|
$s .= sprintf('%.2F %.2F m %.2F %.2F l S ', $x * $k, ($this->h - $y) * $k, $x * $k, ($this->h - ($y + $h)) * $k);
|
|
}
|
|
if (strpos($border, 'T') !== false) {
|
|
$s .= sprintf('%.2F %.2F m %.2F %.2F l S ', $x * $k, ($this->h - $y) * $k, ($x + $w) * $k, ($this->h - $y) * $k);
|
|
}
|
|
if (strpos($border, 'R') !== false) {
|
|
$s .= sprintf('%.2F %.2F m %.2F %.2F l S ', ($x + $w) * $k, ($this->h - $y) * $k, ($x + $w) * $k, ($this->h - ($y + $h)) * $k);
|
|
}
|
|
if (strpos($border, 'B') !== false) {
|
|
$s .= sprintf('%.2F %.2F m %.2F %.2F l S ', $x * $k, ($this->h - ($y + $h)) * $k, ($x + $w) * $k, ($this->h - ($y + $h)) * $k);
|
|
}
|
|
}
|
|
$txt = (string) $txt;
|
|
if ($txt !== '') {
|
|
if (! isset($this->CurrentFont)) {
|
|
$this->Error('No font has been set');
|
|
}
|
|
if ($align == 'R') {
|
|
$dx = $w - $this->cMargin - $this->GetStringWidth($txt);
|
|
} elseif ($align == 'C') {
|
|
$dx = ($w - $this->GetStringWidth($txt)) / 2;
|
|
} else {
|
|
$dx = $this->cMargin;
|
|
}
|
|
if ($this->ColorFlag) {
|
|
$s .= 'q '.$this->TextColor.' ';
|
|
}
|
|
$s .= sprintf('BT %.2F %.2F Td (%s) Tj ET', ($this->x + $dx) * $k, ($this->h - ($this->y + .5 * $h + .3 * $this->FontSize)) * $k, $this->_escape($txt));
|
|
if ($this->underline) {
|
|
$s .= ' '.$this->_dounderline($this->x + $dx, $this->y + .5 * $h + .3 * $this->FontSize, $txt);
|
|
}
|
|
if ($this->ColorFlag) {
|
|
$s .= ' Q';
|
|
}
|
|
if ($link) {
|
|
$this->Link($this->x + $dx, $this->y + .5 * $h - .5 * $this->FontSize, $this->GetStringWidth($txt), $this->FontSize, $link);
|
|
}
|
|
}
|
|
if ($s) {
|
|
$this->_out($s);
|
|
}
|
|
$this->lasth = $h;
|
|
if ($ln > 0) {
|
|
// Go to next line
|
|
$this->y += $h;
|
|
if ($ln == 1) {
|
|
$this->x = $this->lMargin;
|
|
}
|
|
} else {
|
|
$this->x += $w;
|
|
}
|
|
}
|
|
|
|
public function MultiCell($w, $h, $txt, $border = 0, $align = 'J', $fill = false)
|
|
{
|
|
// Output text with automatic or explicit line breaks
|
|
if (! isset($this->CurrentFont)) {
|
|
$this->Error('No font has been set');
|
|
}
|
|
$cw = $this->CurrentFont['cw'];
|
|
if ($w == 0) {
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
}
|
|
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
|
|
$s = str_replace("\r", '', (string) $txt);
|
|
$nb = strlen($s);
|
|
if ($nb > 0 && $s[$nb - 1] == "\n") {
|
|
$nb--;
|
|
}
|
|
$b = 0;
|
|
if ($border) {
|
|
if ($border == 1) {
|
|
$border = 'LTRB';
|
|
$b = 'LRT';
|
|
$b2 = 'LR';
|
|
} else {
|
|
$b2 = '';
|
|
if (strpos($border, 'L') !== false) {
|
|
$b2 .= 'L';
|
|
}
|
|
if (strpos($border, 'R') !== false) {
|
|
$b2 .= 'R';
|
|
}
|
|
$b = (strpos($border, 'T') !== false) ? $b2.'T' : $b2;
|
|
}
|
|
}
|
|
$sep = -1;
|
|
$i = 0;
|
|
$j = 0;
|
|
$l = 0;
|
|
$ns = 0;
|
|
$nl = 1;
|
|
while ($i < $nb) {
|
|
// Get next character
|
|
$c = $s[$i];
|
|
if ($c == "\n") {
|
|
// Explicit line break
|
|
if ($this->ws > 0) {
|
|
$this->ws = 0;
|
|
$this->_out('0 Tw');
|
|
}
|
|
$this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
|
|
$i++;
|
|
$sep = -1;
|
|
$j = $i;
|
|
$l = 0;
|
|
$ns = 0;
|
|
$nl++;
|
|
if ($border && $nl == 2) {
|
|
$b = $b2;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
if ($c == ' ') {
|
|
$sep = $i;
|
|
$ls = $l;
|
|
$ns++;
|
|
}
|
|
$l += $cw[$c];
|
|
if ($l > $wmax) {
|
|
// Automatic line break
|
|
if ($sep == -1) {
|
|
if ($i == $j) {
|
|
$i++;
|
|
}
|
|
if ($this->ws > 0) {
|
|
$this->ws = 0;
|
|
$this->_out('0 Tw');
|
|
}
|
|
$this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
|
|
} else {
|
|
if ($align == 'J') {
|
|
$this->ws = ($ns > 1) ? ($wmax - $ls) / 1000 * $this->FontSize / ($ns - 1) : 0;
|
|
$this->_out(sprintf('%.3F Tw', $this->ws * $this->k));
|
|
}
|
|
$this->Cell($w, $h, substr($s, $j, $sep - $j), $b, 2, $align, $fill);
|
|
$i = $sep + 1;
|
|
}
|
|
$sep = -1;
|
|
$j = $i;
|
|
$l = 0;
|
|
$ns = 0;
|
|
$nl++;
|
|
if ($border && $nl == 2) {
|
|
$b = $b2;
|
|
}
|
|
} else {
|
|
$i++;
|
|
}
|
|
}
|
|
// Last chunk
|
|
if ($this->ws > 0) {
|
|
$this->ws = 0;
|
|
$this->_out('0 Tw');
|
|
}
|
|
if ($border && strpos($border, 'B') !== false) {
|
|
$b .= 'B';
|
|
}
|
|
$this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
|
|
$this->x = $this->lMargin;
|
|
}
|
|
|
|
public function Write($h, $txt, $link = '')
|
|
{
|
|
// Output text in flowing mode
|
|
if (! isset($this->CurrentFont)) {
|
|
$this->Error('No font has been set');
|
|
}
|
|
$cw = $this->CurrentFont['cw'];
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
|
|
$s = str_replace("\r", '', (string) $txt);
|
|
$nb = strlen($s);
|
|
$sep = -1;
|
|
$i = 0;
|
|
$j = 0;
|
|
$l = 0;
|
|
$nl = 1;
|
|
while ($i < $nb) {
|
|
// Get next character
|
|
$c = $s[$i];
|
|
if ($c == "\n") {
|
|
// Explicit line break
|
|
$this->Cell($w, $h, substr($s, $j, $i - $j), 0, 2, '', false, $link);
|
|
$i++;
|
|
$sep = -1;
|
|
$j = $i;
|
|
$l = 0;
|
|
if ($nl == 1) {
|
|
$this->x = $this->lMargin;
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
|
|
}
|
|
$nl++;
|
|
|
|
continue;
|
|
}
|
|
if ($c == ' ') {
|
|
$sep = $i;
|
|
}
|
|
$l += $cw[$c];
|
|
if ($l > $wmax) {
|
|
// Automatic line break
|
|
if ($sep == -1) {
|
|
if ($this->x > $this->lMargin) {
|
|
// Move to next line
|
|
$this->x = $this->lMargin;
|
|
$this->y += $h;
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
|
|
$i++;
|
|
$nl++;
|
|
|
|
continue;
|
|
}
|
|
if ($i == $j) {
|
|
$i++;
|
|
}
|
|
$this->Cell($w, $h, substr($s, $j, $i - $j), 0, 2, '', false, $link);
|
|
} else {
|
|
$this->Cell($w, $h, substr($s, $j, $sep - $j), 0, 2, '', false, $link);
|
|
$i = $sep + 1;
|
|
}
|
|
$sep = -1;
|
|
$j = $i;
|
|
$l = 0;
|
|
if ($nl == 1) {
|
|
$this->x = $this->lMargin;
|
|
$w = $this->w - $this->rMargin - $this->x;
|
|
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
|
|
}
|
|
$nl++;
|
|
} else {
|
|
$i++;
|
|
}
|
|
}
|
|
// Last chunk
|
|
if ($i != $j) {
|
|
$this->Cell($l / 1000 * $this->FontSize, $h, substr($s, $j), 0, 0, '', false, $link);
|
|
}
|
|
}
|
|
|
|
public function Ln($h = null)
|
|
{
|
|
// Line feed; default value is the last cell height
|
|
$this->x = $this->lMargin;
|
|
if ($h === null) {
|
|
$this->y += $this->lasth;
|
|
} else {
|
|
$this->y += $h;
|
|
}
|
|
}
|
|
|
|
public function Image($file, $x = null, $y = null, $w = 0, $h = 0, $type = '', $link = '')
|
|
{
|
|
// Put an image on the page
|
|
if ($file == '') {
|
|
$this->Error('Image file name is empty');
|
|
}
|
|
if (! isset($this->images[$file])) {
|
|
// First use of this image, get info
|
|
if ($type == '') {
|
|
$pos = strrpos($file, '.');
|
|
if (! $pos) {
|
|
$this->Error('Image file has no extension and no type was specified: '.$file);
|
|
}
|
|
$type = substr($file, $pos + 1);
|
|
}
|
|
$type = strtolower($type);
|
|
if ($type == 'jpeg') {
|
|
$type = 'jpg';
|
|
}
|
|
$mtd = '_parse'.$type;
|
|
if (! method_exists($this, $mtd)) {
|
|
$this->Error('Unsupported image type: '.$type);
|
|
}
|
|
$info = $this->$mtd($file);
|
|
$info['i'] = count($this->images) + 1;
|
|
$this->images[$file] = $info;
|
|
} else {
|
|
$info = $this->images[$file];
|
|
}
|
|
|
|
// Automatic width and height calculation if needed
|
|
if ($w == 0 && $h == 0) {
|
|
// Put image at 96 dpi
|
|
$w = -96;
|
|
$h = -96;
|
|
}
|
|
if ($w < 0) {
|
|
$w = -$info['w'] * 72 / $w / $this->k;
|
|
}
|
|
if ($h < 0) {
|
|
$h = -$info['h'] * 72 / $h / $this->k;
|
|
}
|
|
if ($w == 0) {
|
|
$w = $h * $info['w'] / $info['h'];
|
|
}
|
|
if ($h == 0) {
|
|
$h = $w * $info['h'] / $info['w'];
|
|
}
|
|
|
|
// Flowing mode
|
|
if ($y === null) {
|
|
if ($this->y + $h > $this->PageBreakTrigger && ! $this->InHeader && ! $this->InFooter && $this->AcceptPageBreak()) {
|
|
// Automatic page break
|
|
$x2 = $this->x;
|
|
$this->AddPage($this->CurOrientation, $this->CurPageSize, $this->CurRotation);
|
|
$this->x = $x2;
|
|
}
|
|
$y = $this->y;
|
|
$this->y += $h;
|
|
}
|
|
|
|
if ($x === null) {
|
|
$x = $this->x;
|
|
}
|
|
$this->_out(sprintf('q %.2F 0 0 %.2F %.2F %.2F cm /I%d Do Q', $w * $this->k, $h * $this->k, $x * $this->k, ($this->h - ($y + $h)) * $this->k, $info['i']));
|
|
if ($link) {
|
|
$this->Link($x, $y, $w, $h, $link);
|
|
}
|
|
}
|
|
|
|
public function GetPageWidth()
|
|
{
|
|
// Get current page width
|
|
return $this->w;
|
|
}
|
|
|
|
public function GetPageHeight()
|
|
{
|
|
// Get current page height
|
|
return $this->h;
|
|
}
|
|
|
|
public function GetX()
|
|
{
|
|
// Get x position
|
|
return $this->x;
|
|
}
|
|
|
|
public function SetX($x)
|
|
{
|
|
// Set x position
|
|
if ($x >= 0) {
|
|
$this->x = $x;
|
|
} else {
|
|
$this->x = $this->w + $x;
|
|
}
|
|
}
|
|
|
|
public function GetY()
|
|
{
|
|
// Get y position
|
|
return $this->y;
|
|
}
|
|
|
|
public function SetY($y, $resetX = true)
|
|
{
|
|
// Set y position and optionally reset x
|
|
if ($y >= 0) {
|
|
$this->y = $y;
|
|
} else {
|
|
$this->y = $this->h + $y;
|
|
}
|
|
if ($resetX) {
|
|
$this->x = $this->lMargin;
|
|
}
|
|
}
|
|
|
|
public function SetXY($x, $y)
|
|
{
|
|
// Set x and y positions
|
|
$this->SetX($x);
|
|
$this->SetY($y, false);
|
|
}
|
|
|
|
public function Output($dest = '', $name = '', $isUTF8 = false)
|
|
{
|
|
// Output PDF to some destination
|
|
$this->Close();
|
|
if (strlen($name) == 1 && strlen($dest) != 1) {
|
|
// Fix parameter order
|
|
$tmp = $dest;
|
|
$dest = $name;
|
|
$name = $tmp;
|
|
}
|
|
if ($dest == '') {
|
|
$dest = 'I';
|
|
}
|
|
if ($name == '') {
|
|
$name = 'doc.pdf';
|
|
}
|
|
switch (strtoupper($dest)) {
|
|
case 'I':
|
|
// Send to standard output
|
|
$this->_checkoutput();
|
|
if (PHP_SAPI != 'cli') {
|
|
// We send to a browser
|
|
header('Content-Type: application/pdf');
|
|
header('Content-Disposition: inline; '.$this->_httpencode('filename', $name, $isUTF8));
|
|
header('Cache-Control: private, max-age=0, must-revalidate');
|
|
header('Pragma: public');
|
|
}
|
|
echo $this->buffer;
|
|
break;
|
|
case 'D':
|
|
// Download file
|
|
$this->_checkoutput();
|
|
header('Content-Type: application/pdf');
|
|
header('Content-Disposition: attachment; '.$this->_httpencode('filename', $name, $isUTF8));
|
|
header('Cache-Control: private, max-age=0, must-revalidate');
|
|
header('Pragma: public');
|
|
echo $this->buffer;
|
|
break;
|
|
case 'F':
|
|
// Save to local file
|
|
if (! file_put_contents($name, $this->buffer)) {
|
|
$this->Error('Unable to create output file: '.$name);
|
|
}
|
|
break;
|
|
case 'S':
|
|
// Return as a string
|
|
return $this->buffer;
|
|
default:
|
|
$this->Error('Incorrect output destination: '.$dest);
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* Protected methods *
|
|
*******************************************************************************/
|
|
|
|
protected function _checkoutput()
|
|
{
|
|
if (PHP_SAPI != 'cli') {
|
|
if (headers_sent($file, $line)) {
|
|
$this->Error("Some data has already been output, can't send PDF file (output started at $file:$line)");
|
|
}
|
|
}
|
|
if (ob_get_length()) {
|
|
// The output buffer is not empty
|
|
if (preg_match('/^(\xEF\xBB\xBF)?\s*$/', ob_get_contents())) {
|
|
// It contains only a UTF-8 BOM and/or whitespace, let's clean it
|
|
ob_clean();
|
|
} else {
|
|
$this->Error("Some data has already been output, can't send PDF file");
|
|
}
|
|
}
|
|
}
|
|
|
|
protected function _getpagesize($size)
|
|
{
|
|
if (is_string($size)) {
|
|
$size = strtolower($size);
|
|
if (! isset($this->StdPageSizes[$size])) {
|
|
$this->Error('Unknown page size: '.$size);
|
|
}
|
|
$a = $this->StdPageSizes[$size];
|
|
|
|
return [$a[0] / $this->k, $a[1] / $this->k];
|
|
} else {
|
|
if ($size[0] > $size[1]) {
|
|
return [$size[1], $size[0]];
|
|
} else {
|
|
return $size;
|
|
}
|
|
}
|
|
}
|
|
|
|
protected function _beginpage($orientation, $size, $rotation)
|
|
{
|
|
$this->page++;
|
|
$this->pages[$this->page] = '';
|
|
$this->PageLinks[$this->page] = [];
|
|
$this->state = 2;
|
|
$this->x = $this->lMargin;
|
|
$this->y = $this->tMargin;
|
|
$this->FontFamily = '';
|
|
// Check page size and orientation
|
|
if ($orientation == '') {
|
|
$orientation = $this->DefOrientation;
|
|
} else {
|
|
$orientation = strtoupper($orientation[0]);
|
|
}
|
|
if ($size == '') {
|
|
$size = $this->DefPageSize;
|
|
} else {
|
|
$size = $this->_getpagesize($size);
|
|
}
|
|
if ($orientation != $this->CurOrientation || $size[0] != $this->CurPageSize[0] || $size[1] != $this->CurPageSize[1]) {
|
|
// New size or orientation
|
|
if ($orientation == 'P') {
|
|
$this->w = $size[0];
|
|
$this->h = $size[1];
|
|
} else {
|
|
$this->w = $size[1];
|
|
$this->h = $size[0];
|
|
}
|
|
$this->wPt = $this->w * $this->k;
|
|
$this->hPt = $this->h * $this->k;
|
|
$this->PageBreakTrigger = $this->h - $this->bMargin;
|
|
$this->CurOrientation = $orientation;
|
|
$this->CurPageSize = $size;
|
|
}
|
|
if ($orientation != $this->DefOrientation || $size[0] != $this->DefPageSize[0] || $size[1] != $this->DefPageSize[1]) {
|
|
$this->PageInfo[$this->page]['size'] = [$this->wPt, $this->hPt];
|
|
}
|
|
if ($rotation != 0) {
|
|
if ($rotation % 90 != 0) {
|
|
$this->Error('Incorrect rotation value: '.$rotation);
|
|
}
|
|
$this->PageInfo[$this->page]['rotation'] = $rotation;
|
|
}
|
|
$this->CurRotation = $rotation;
|
|
}
|
|
|
|
protected function _endpage()
|
|
{
|
|
$this->state = 1;
|
|
}
|
|
|
|
protected function _loadfont($path)
|
|
{
|
|
// Load a font definition file
|
|
include $path;
|
|
if (! isset($name)) {
|
|
$this->Error('Could not include font definition file: '.$path);
|
|
}
|
|
if (isset($enc)) {
|
|
$enc = strtolower($enc);
|
|
}
|
|
if (! isset($subsetted)) {
|
|
$subsetted = false;
|
|
}
|
|
|
|
return get_defined_vars();
|
|
}
|
|
|
|
protected function _isascii($s)
|
|
{
|
|
// Test if string is ASCII
|
|
$nb = strlen($s);
|
|
for ($i = 0; $i < $nb; $i++) {
|
|
if (ord($s[$i]) > 127) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
protected function _httpencode($param, $value, $isUTF8)
|
|
{
|
|
// Encode HTTP header field parameter
|
|
if ($this->_isascii($value)) {
|
|
return $param.'="'.$value.'"';
|
|
}
|
|
if (! $isUTF8) {
|
|
$value = $this->_UTF8encode($value);
|
|
}
|
|
|
|
return $param."*=UTF-8''".rawurlencode($value);
|
|
}
|
|
|
|
protected function _UTF8encode($s)
|
|
{
|
|
// Convert ISO-8859-1 to UTF-8
|
|
if ($this->iconv) {
|
|
return iconv('ISO-8859-1', 'UTF-8', $s);
|
|
}
|
|
$res = '';
|
|
$nb = strlen($s);
|
|
for ($i = 0; $i < $nb; $i++) {
|
|
$c = $s[$i];
|
|
$v = ord($c);
|
|
if ($v >= 128) {
|
|
$res .= chr(0xC0 | ($v >> 6));
|
|
$res .= chr(0x80 | ($v & 0x3F));
|
|
} else {
|
|
$res .= $c;
|
|
}
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
protected function _UTF8toUTF16($s)
|
|
{
|
|
// Convert UTF-8 to UTF-16BE with BOM
|
|
$res = "\xFE\xFF";
|
|
if ($this->iconv) {
|
|
return $res.iconv('UTF-8', 'UTF-16BE', $s);
|
|
}
|
|
$nb = strlen($s);
|
|
$i = 0;
|
|
while ($i < $nb) {
|
|
$c1 = ord($s[$i++]);
|
|
if ($c1 >= 224) {
|
|
// 3-byte character
|
|
$c2 = ord($s[$i++]);
|
|
$c3 = ord($s[$i++]);
|
|
$res .= chr((($c1 & 0x0F) << 4) + (($c2 & 0x3C) >> 2));
|
|
$res .= chr((($c2 & 0x03) << 6) + ($c3 & 0x3F));
|
|
} elseif ($c1 >= 192) {
|
|
// 2-byte character
|
|
$c2 = ord($s[$i++]);
|
|
$res .= chr(($c1 & 0x1C) >> 2);
|
|
$res .= chr((($c1 & 0x03) << 6) + ($c2 & 0x3F));
|
|
} else {
|
|
// Single-byte character
|
|
$res .= "\0".chr($c1);
|
|
}
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
protected function _escape($s)
|
|
{
|
|
// Escape special characters
|
|
if (strpos($s, '(') !== false || strpos($s, ')') !== false || strpos($s, '\\') !== false || strpos($s, "\r") !== false) {
|
|
return str_replace(['\\', '(', ')', "\r"], ['\\\\', '\\(', '\\)', '\\r'], $s);
|
|
} else {
|
|
return $s;
|
|
}
|
|
}
|
|
|
|
protected function _textstring($s)
|
|
{
|
|
// Format a text string
|
|
if (! $this->_isascii($s)) {
|
|
$s = $this->_UTF8toUTF16($s);
|
|
}
|
|
|
|
return '('.$this->_escape($s).')';
|
|
}
|
|
|
|
protected function _dounderline($x, $y, $txt)
|
|
{
|
|
// Underline text
|
|
$up = $this->CurrentFont['up'];
|
|
$ut = $this->CurrentFont['ut'];
|
|
$w = $this->GetStringWidth($txt) + $this->ws * substr_count($txt, ' ');
|
|
|
|
return sprintf('%.2F %.2F %.2F %.2F re f', $x * $this->k, ($this->h - ($y - $up / 1000 * $this->FontSize)) * $this->k, $w * $this->k, -$ut / 1000 * $this->FontSizePt);
|
|
}
|
|
|
|
protected function _parsejpg($file)
|
|
{
|
|
// Extract info from a JPEG file
|
|
$a = getimagesize($file);
|
|
if (! $a) {
|
|
$this->Error('Missing or incorrect image file: '.$file);
|
|
}
|
|
if ($a[2] != 2) {
|
|
$this->Error('Not a JPEG file: '.$file);
|
|
}
|
|
if (! isset($a['channels']) || $a['channels'] == 3) {
|
|
$colspace = 'DeviceRGB';
|
|
} elseif ($a['channels'] == 4) {
|
|
$colspace = 'DeviceCMYK';
|
|
} else {
|
|
$colspace = 'DeviceGray';
|
|
}
|
|
$bpc = isset($a['bits']) ? $a['bits'] : 8;
|
|
$data = file_get_contents($file);
|
|
|
|
return ['w' => $a[0], 'h' => $a[1], 'cs' => $colspace, 'bpc' => $bpc, 'f' => 'DCTDecode', 'data' => $data];
|
|
}
|
|
|
|
protected function _parsepng($file)
|
|
{
|
|
// Extract info from a PNG file
|
|
$f = fopen($file, 'rb');
|
|
if (! $f) {
|
|
$this->Error('Can\'t open image file: '.$file);
|
|
}
|
|
$info = $this->_parsepngstream($f, $file);
|
|
fclose($f);
|
|
|
|
return $info;
|
|
}
|
|
|
|
protected function _parsepngstream($f, $file)
|
|
{
|
|
// Check signature
|
|
if ($this->_readstream($f, 8) != chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10)) {
|
|
$this->Error('Not a PNG file: '.$file);
|
|
}
|
|
|
|
// Read header chunk
|
|
$this->_readstream($f, 4);
|
|
if ($this->_readstream($f, 4) != 'IHDR') {
|
|
$this->Error('Incorrect PNG file: '.$file);
|
|
}
|
|
$w = $this->_readint($f);
|
|
$h = $this->_readint($f);
|
|
$bpc = ord($this->_readstream($f, 1));
|
|
if ($bpc > 8) {
|
|
$this->Error('16-bit depth not supported: '.$file);
|
|
}
|
|
$ct = ord($this->_readstream($f, 1));
|
|
if ($ct == 0 || $ct == 4) {
|
|
$colspace = 'DeviceGray';
|
|
} elseif ($ct == 2 || $ct == 6) {
|
|
$colspace = 'DeviceRGB';
|
|
} elseif ($ct == 3) {
|
|
$colspace = 'Indexed';
|
|
} else {
|
|
$this->Error('Unknown color type: '.$file);
|
|
}
|
|
if (ord($this->_readstream($f, 1)) != 0) {
|
|
$this->Error('Unknown compression method: '.$file);
|
|
}
|
|
if (ord($this->_readstream($f, 1)) != 0) {
|
|
$this->Error('Unknown filter method: '.$file);
|
|
}
|
|
if (ord($this->_readstream($f, 1)) != 0) {
|
|
$this->Error('Interlacing not supported: '.$file);
|
|
}
|
|
$this->_readstream($f, 4);
|
|
$dp = '/Predictor 15 /Colors '.($colspace == 'DeviceRGB' ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w;
|
|
|
|
// Scan chunks looking for palette, transparency and image data
|
|
$pal = '';
|
|
$trns = '';
|
|
$data = '';
|
|
do {
|
|
$n = $this->_readint($f);
|
|
$type = $this->_readstream($f, 4);
|
|
if ($type == 'PLTE') {
|
|
// Read palette
|
|
$pal = $this->_readstream($f, $n);
|
|
$this->_readstream($f, 4);
|
|
} elseif ($type == 'tRNS') {
|
|
// Read transparency info
|
|
$t = $this->_readstream($f, $n);
|
|
if ($ct == 0) {
|
|
$trns = [ord(substr($t, 1, 1))];
|
|
} elseif ($ct == 2) {
|
|
$trns = [ord(substr($t, 1, 1)), ord(substr($t, 3, 1)), ord(substr($t, 5, 1))];
|
|
} else {
|
|
$pos = strpos($t, chr(0));
|
|
if ($pos !== false) {
|
|
$trns = [$pos];
|
|
}
|
|
}
|
|
$this->_readstream($f, 4);
|
|
} elseif ($type == 'IDAT') {
|
|
// Read image data block
|
|
$data .= $this->_readstream($f, $n);
|
|
$this->_readstream($f, 4);
|
|
} elseif ($type == 'IEND') {
|
|
break;
|
|
} else {
|
|
$this->_readstream($f, $n + 4);
|
|
}
|
|
} while ($n);
|
|
|
|
if ($colspace == 'Indexed' && empty($pal)) {
|
|
$this->Error('Missing palette in '.$file);
|
|
}
|
|
$info = ['w' => $w, 'h' => $h, 'cs' => $colspace, 'bpc' => $bpc, 'f' => 'FlateDecode', 'dp' => $dp, 'pal' => $pal, 'trns' => $trns];
|
|
if ($ct >= 4) {
|
|
// Extract alpha channel
|
|
if (! function_exists('gzuncompress')) {
|
|
$this->Error('Zlib not available, can\'t handle alpha channel: '.$file);
|
|
}
|
|
$data = gzuncompress($data);
|
|
$color = '';
|
|
$alpha = '';
|
|
if ($ct == 4) {
|
|
// Gray image
|
|
$len = 2 * $w;
|
|
for ($i = 0; $i < $h; $i++) {
|
|
$pos = (1 + $len) * $i;
|
|
$color .= $data[$pos];
|
|
$alpha .= $data[$pos];
|
|
$line = substr($data, $pos + 1, $len);
|
|
$color .= preg_replace('/(.)./s', '$1', $line);
|
|
$alpha .= preg_replace('/.(.)/s', '$1', $line);
|
|
}
|
|
} else {
|
|
// RGB image
|
|
$len = 4 * $w;
|
|
for ($i = 0; $i < $h; $i++) {
|
|
$pos = (1 + $len) * $i;
|
|
$color .= $data[$pos];
|
|
$alpha .= $data[$pos];
|
|
$line = substr($data, $pos + 1, $len);
|
|
$color .= preg_replace('/(.{3})./s', '$1', $line);
|
|
$alpha .= preg_replace('/.{3}(.)/s', '$1', $line);
|
|
}
|
|
}
|
|
unset($data);
|
|
$data = gzcompress($color);
|
|
$info['smask'] = gzcompress($alpha);
|
|
$this->WithAlpha = true;
|
|
if ($this->PDFVersion < '1.4') {
|
|
$this->PDFVersion = '1.4';
|
|
}
|
|
}
|
|
$info['data'] = $data;
|
|
|
|
return $info;
|
|
}
|
|
|
|
protected function _readstream($f, $n)
|
|
{
|
|
// Read n bytes from stream
|
|
$res = '';
|
|
while ($n > 0 && ! feof($f)) {
|
|
$s = fread($f, $n);
|
|
if ($s === false) {
|
|
$this->Error('Error while reading stream');
|
|
}
|
|
$n -= strlen($s);
|
|
$res .= $s;
|
|
}
|
|
if ($n > 0) {
|
|
$this->Error('Unexpected end of stream');
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
protected function _readint($f)
|
|
{
|
|
// Read a 4-byte integer from stream
|
|
$a = unpack('Ni', $this->_readstream($f, 4));
|
|
|
|
return $a['i'];
|
|
}
|
|
|
|
protected function _parsegif($file)
|
|
{
|
|
// Extract info from a GIF file (via PNG conversion)
|
|
if (! function_exists('imagepng')) {
|
|
$this->Error('GD extension is required for GIF support');
|
|
}
|
|
if (! function_exists('imagecreatefromgif')) {
|
|
$this->Error('GD has no GIF read support');
|
|
}
|
|
$im = imagecreatefromgif($file);
|
|
if (! $im) {
|
|
$this->Error('Missing or incorrect image file: '.$file);
|
|
}
|
|
imageinterlace($im, 0);
|
|
ob_start();
|
|
imagepng($im);
|
|
$data = ob_get_clean();
|
|
imagedestroy($im);
|
|
$f = fopen('php://temp', 'rb+');
|
|
if (! $f) {
|
|
$this->Error('Unable to create memory stream');
|
|
}
|
|
fwrite($f, $data);
|
|
rewind($f);
|
|
$info = $this->_parsepngstream($f, $file);
|
|
fclose($f);
|
|
|
|
return $info;
|
|
}
|
|
|
|
protected function _out($s)
|
|
{
|
|
// Add a line to the current page
|
|
if ($this->state == 2) {
|
|
$this->pages[$this->page] .= $s."\n";
|
|
} elseif ($this->state == 0) {
|
|
$this->Error('No page has been added yet');
|
|
} elseif ($this->state == 1) {
|
|
$this->Error('Invalid call');
|
|
} elseif ($this->state == 3) {
|
|
$this->Error('The document is closed');
|
|
}
|
|
}
|
|
|
|
protected function _put($s)
|
|
{
|
|
// Add a line to the document
|
|
$this->buffer .= $s."\n";
|
|
}
|
|
|
|
protected function _getoffset()
|
|
{
|
|
return strlen($this->buffer);
|
|
}
|
|
|
|
protected function _newobj($n = null)
|
|
{
|
|
// Begin a new object
|
|
if ($n === null) {
|
|
$n = ++$this->n;
|
|
}
|
|
$this->offsets[$n] = $this->_getoffset();
|
|
$this->_put($n.' 0 obj');
|
|
}
|
|
|
|
protected function _putstream($data)
|
|
{
|
|
$this->_put('stream');
|
|
$this->_put($data);
|
|
$this->_put('endstream');
|
|
}
|
|
|
|
protected function _putstreamobject($data)
|
|
{
|
|
if ($this->compress) {
|
|
$entries = '/Filter /FlateDecode ';
|
|
$data = gzcompress($data);
|
|
} else {
|
|
$entries = '';
|
|
}
|
|
$entries .= '/Length '.strlen($data);
|
|
$this->_newobj();
|
|
$this->_put('<<'.$entries.'>>');
|
|
$this->_putstream($data);
|
|
$this->_put('endobj');
|
|
}
|
|
|
|
protected function _putlinks($n)
|
|
{
|
|
foreach ($this->PageLinks[$n] as $pl) {
|
|
$this->_newobj();
|
|
$rect = sprintf('%.2F %.2F %.2F %.2F', $pl[0], $pl[1], $pl[0] + $pl[2], $pl[1] - $pl[3]);
|
|
$s = '<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
|
|
if (is_string($pl[4])) {
|
|
$s .= '/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
|
|
} else {
|
|
$l = $this->links[$pl[4]];
|
|
if (isset($this->PageInfo[$l[0]]['size'])) {
|
|
$h = $this->PageInfo[$l[0]]['size'][1];
|
|
} else {
|
|
$h = ($this->DefOrientation == 'P') ? $this->DefPageSize[1] * $this->k : $this->DefPageSize[0] * $this->k;
|
|
}
|
|
$s .= sprintf('/Dest [%d 0 R /XYZ 0 %.2F null]>>', $this->PageInfo[$l[0]]['n'], $h - $l[1] * $this->k);
|
|
}
|
|
$this->_put($s);
|
|
$this->_put('endobj');
|
|
}
|
|
}
|
|
|
|
protected function _putpage($n)
|
|
{
|
|
$this->_newobj();
|
|
$this->_put('<</Type /Page');
|
|
$this->_put('/Parent 1 0 R');
|
|
if (isset($this->PageInfo[$n]['size'])) {
|
|
$this->_put(sprintf('/MediaBox [0 0 %.2F %.2F]', $this->PageInfo[$n]['size'][0], $this->PageInfo[$n]['size'][1]));
|
|
}
|
|
if (isset($this->PageInfo[$n]['rotation'])) {
|
|
$this->_put('/Rotate '.$this->PageInfo[$n]['rotation']);
|
|
}
|
|
$this->_put('/Resources 2 0 R');
|
|
if (! empty($this->PageLinks[$n])) {
|
|
$s = '/Annots [';
|
|
foreach ($this->PageLinks[$n] as $pl) {
|
|
$s .= $pl[5].' 0 R ';
|
|
}
|
|
$s .= ']';
|
|
$this->_put($s);
|
|
}
|
|
if ($this->WithAlpha) {
|
|
$this->_put('/Group <</Type /Group /S /Transparency /CS /DeviceRGB>>');
|
|
}
|
|
$this->_put('/Contents '.($this->n + 1).' 0 R>>');
|
|
$this->_put('endobj');
|
|
// Page content
|
|
if (! empty($this->AliasNbPages)) {
|
|
$this->pages[$n] = str_replace($this->AliasNbPages, $this->page, $this->pages[$n]);
|
|
}
|
|
$this->_putstreamobject($this->pages[$n]);
|
|
// Link annotations
|
|
$this->_putlinks($n);
|
|
}
|
|
|
|
protected function _putpages()
|
|
{
|
|
$nb = $this->page;
|
|
$n = $this->n;
|
|
for ($i = 1; $i <= $nb; $i++) {
|
|
$this->PageInfo[$i]['n'] = ++$n;
|
|
$n++;
|
|
foreach ($this->PageLinks[$i] as &$pl) {
|
|
$pl[5] = ++$n;
|
|
}
|
|
unset($pl);
|
|
}
|
|
for ($i = 1; $i <= $nb; $i++) {
|
|
$this->_putpage($i);
|
|
}
|
|
// Pages root
|
|
$this->_newobj(1);
|
|
$this->_put('<</Type /Pages');
|
|
$kids = '/Kids [';
|
|
for ($i = 1; $i <= $nb; $i++) {
|
|
$kids .= $this->PageInfo[$i]['n'].' 0 R ';
|
|
}
|
|
$kids .= ']';
|
|
$this->_put($kids);
|
|
$this->_put('/Count '.$nb);
|
|
if ($this->DefOrientation == 'P') {
|
|
$w = $this->DefPageSize[0];
|
|
$h = $this->DefPageSize[1];
|
|
} else {
|
|
$w = $this->DefPageSize[1];
|
|
$h = $this->DefPageSize[0];
|
|
}
|
|
$this->_put(sprintf('/MediaBox [0 0 %.2F %.2F]', $w * $this->k, $h * $this->k));
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
}
|
|
|
|
protected function _putfonts()
|
|
{
|
|
foreach ($this->FontFiles as $file => $info) {
|
|
// Font file embedding
|
|
$this->_newobj();
|
|
$this->FontFiles[$file]['n'] = $this->n;
|
|
$font = file_get_contents($file);
|
|
if (! $font) {
|
|
$this->Error('Font file not found: '.$file);
|
|
}
|
|
$compressed = (substr($file, -2) == '.z');
|
|
if (! $compressed && isset($info['length2'])) {
|
|
$font = substr($font, 6, $info['length1']).substr($font, 6 + $info['length1'] + 6, $info['length2']);
|
|
}
|
|
$this->_put('<</Length '.strlen($font));
|
|
if ($compressed) {
|
|
$this->_put('/Filter /FlateDecode');
|
|
}
|
|
$this->_put('/Length1 '.$info['length1']);
|
|
if (isset($info['length2'])) {
|
|
$this->_put('/Length2 '.$info['length2'].' /Length3 0');
|
|
}
|
|
$this->_put('>>');
|
|
$this->_putstream($font);
|
|
$this->_put('endobj');
|
|
}
|
|
foreach ($this->fonts as $k => $font) {
|
|
// Encoding
|
|
if (isset($font['diff'])) {
|
|
if (! isset($this->encodings[$font['enc']])) {
|
|
$this->_newobj();
|
|
$this->_put('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$font['diff'].']>>');
|
|
$this->_put('endobj');
|
|
$this->encodings[$font['enc']] = $this->n;
|
|
}
|
|
}
|
|
// ToUnicode CMap
|
|
if (isset($font['uv'])) {
|
|
if (isset($font['enc'])) {
|
|
$cmapkey = $font['enc'];
|
|
} else {
|
|
$cmapkey = $font['name'];
|
|
}
|
|
if (! isset($this->cmaps[$cmapkey])) {
|
|
$cmap = $this->_tounicodecmap($font['uv']);
|
|
$this->_putstreamobject($cmap);
|
|
$this->cmaps[$cmapkey] = $this->n;
|
|
}
|
|
}
|
|
// Font object
|
|
$this->fonts[$k]['n'] = $this->n + 1;
|
|
$type = $font['type'];
|
|
$name = $font['name'];
|
|
if ($font['subsetted']) {
|
|
$name = 'AAAAAA+'.$name;
|
|
}
|
|
if ($type == 'Core') {
|
|
// Core font
|
|
$this->_newobj();
|
|
$this->_put('<</Type /Font');
|
|
$this->_put('/BaseFont /'.$name);
|
|
$this->_put('/Subtype /Type1');
|
|
if ($name != 'Symbol' && $name != 'ZapfDingbats') {
|
|
$this->_put('/Encoding /WinAnsiEncoding');
|
|
}
|
|
if (isset($font['uv'])) {
|
|
$this->_put('/ToUnicode '.$this->cmaps[$cmapkey].' 0 R');
|
|
}
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
} elseif ($type == 'Type1' || $type == 'TrueType') {
|
|
// Additional Type1 or TrueType/OpenType font
|
|
$this->_newobj();
|
|
$this->_put('<</Type /Font');
|
|
$this->_put('/BaseFont /'.$name);
|
|
$this->_put('/Subtype /'.$type);
|
|
$this->_put('/FirstChar 32 /LastChar 255');
|
|
$this->_put('/Widths '.($this->n + 1).' 0 R');
|
|
$this->_put('/FontDescriptor '.($this->n + 2).' 0 R');
|
|
if (isset($font['diff'])) {
|
|
$this->_put('/Encoding '.$this->encodings[$font['enc']].' 0 R');
|
|
} else {
|
|
$this->_put('/Encoding /WinAnsiEncoding');
|
|
}
|
|
if (isset($font['uv'])) {
|
|
$this->_put('/ToUnicode '.$this->cmaps[$cmapkey].' 0 R');
|
|
}
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
// Widths
|
|
$this->_newobj();
|
|
$cw = $font['cw'];
|
|
$s = '[';
|
|
for ($i = 32; $i <= 255; $i++) {
|
|
$s .= $cw[chr($i)].' ';
|
|
}
|
|
$this->_put($s.']');
|
|
$this->_put('endobj');
|
|
// Descriptor
|
|
$this->_newobj();
|
|
$s = '<</Type /FontDescriptor /FontName /'.$name;
|
|
foreach ($font['desc'] as $k => $v) {
|
|
$s .= ' /'.$k.' '.$v;
|
|
}
|
|
if (! empty($font['file'])) {
|
|
$s .= ' /FontFile'.($type == 'Type1' ? '' : '2').' '.$this->FontFiles[$font['file']]['n'].' 0 R';
|
|
}
|
|
$this->_put($s.'>>');
|
|
$this->_put('endobj');
|
|
} else {
|
|
// Allow for additional types
|
|
$mtd = '_put'.strtolower($type);
|
|
if (! method_exists($this, $mtd)) {
|
|
$this->Error('Unsupported font type: '.$type);
|
|
}
|
|
$this->$mtd($font);
|
|
}
|
|
}
|
|
}
|
|
|
|
protected function _tounicodecmap($uv)
|
|
{
|
|
$ranges = '';
|
|
$nbr = 0;
|
|
$chars = '';
|
|
$nbc = 0;
|
|
foreach ($uv as $c => $v) {
|
|
if (is_array($v)) {
|
|
$ranges .= sprintf("<%02X> <%02X> <%04X>\n", $c, $c + $v[1] - 1, $v[0]);
|
|
$nbr++;
|
|
} else {
|
|
$chars .= sprintf("<%02X> <%04X>\n", $c, $v);
|
|
$nbc++;
|
|
}
|
|
}
|
|
$s = "/CIDInit /ProcSet findresource begin\n";
|
|
$s .= "12 dict begin\n";
|
|
$s .= "begincmap\n";
|
|
$s .= "/CIDSystemInfo\n";
|
|
$s .= "<</Registry (Adobe)\n";
|
|
$s .= "/Ordering (UCS)\n";
|
|
$s .= "/Supplement 0\n";
|
|
$s .= ">> def\n";
|
|
$s .= "/CMapName /Adobe-Identity-UCS def\n";
|
|
$s .= "/CMapType 2 def\n";
|
|
$s .= "1 begincodespacerange\n";
|
|
$s .= "<00> <FF>\n";
|
|
$s .= "endcodespacerange\n";
|
|
if ($nbr > 0) {
|
|
$s .= "$nbr beginbfrange\n";
|
|
$s .= $ranges;
|
|
$s .= "endbfrange\n";
|
|
}
|
|
if ($nbc > 0) {
|
|
$s .= "$nbc beginbfchar\n";
|
|
$s .= $chars;
|
|
$s .= "endbfchar\n";
|
|
}
|
|
$s .= "endcmap\n";
|
|
$s .= "CMapName currentdict /CMap defineresource pop\n";
|
|
$s .= "end\n";
|
|
$s .= 'end';
|
|
|
|
return $s;
|
|
}
|
|
|
|
protected function _putimages()
|
|
{
|
|
foreach (array_keys($this->images) as $file) {
|
|
$this->_putimage($this->images[$file]);
|
|
unset($this->images[$file]['data']);
|
|
unset($this->images[$file]['smask']);
|
|
}
|
|
}
|
|
|
|
protected function _putimage(&$info)
|
|
{
|
|
$this->_newobj();
|
|
$info['n'] = $this->n;
|
|
$this->_put('<</Type /XObject');
|
|
$this->_put('/Subtype /Image');
|
|
$this->_put('/Width '.$info['w']);
|
|
$this->_put('/Height '.$info['h']);
|
|
if ($info['cs'] == 'Indexed') {
|
|
$this->_put('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal']) / 3 - 1).' '.($this->n + 1).' 0 R]');
|
|
} else {
|
|
$this->_put('/ColorSpace /'.$info['cs']);
|
|
if ($info['cs'] == 'DeviceCMYK') {
|
|
$this->_put('/Decode [1 0 1 0 1 0 1 0]');
|
|
}
|
|
}
|
|
$this->_put('/BitsPerComponent '.$info['bpc']);
|
|
if (isset($info['f'])) {
|
|
$this->_put('/Filter /'.$info['f']);
|
|
}
|
|
if (isset($info['dp'])) {
|
|
$this->_put('/DecodeParms <<'.$info['dp'].'>>');
|
|
}
|
|
if (isset($info['trns']) && is_array($info['trns'])) {
|
|
$trns = '';
|
|
for ($i = 0; $i < count($info['trns']); $i++) {
|
|
$trns .= $info['trns'][$i].' '.$info['trns'][$i].' ';
|
|
}
|
|
$this->_put('/Mask ['.$trns.']');
|
|
}
|
|
if (isset($info['smask'])) {
|
|
$this->_put('/SMask '.($this->n + 1).' 0 R');
|
|
}
|
|
$this->_put('/Length '.strlen($info['data']).'>>');
|
|
$this->_putstream($info['data']);
|
|
$this->_put('endobj');
|
|
// Soft mask
|
|
if (isset($info['smask'])) {
|
|
$dp = '/Predictor 15 /Colors 1 /BitsPerComponent 8 /Columns '.$info['w'];
|
|
$smask = ['w' => $info['w'], 'h' => $info['h'], 'cs' => 'DeviceGray', 'bpc' => 8, 'f' => $info['f'], 'dp' => $dp, 'data' => $info['smask']];
|
|
$this->_putimage($smask);
|
|
}
|
|
// Palette
|
|
if ($info['cs'] == 'Indexed') {
|
|
$this->_putstreamobject($info['pal']);
|
|
}
|
|
}
|
|
|
|
protected function _putxobjectdict()
|
|
{
|
|
foreach ($this->images as $image) {
|
|
$this->_put('/I'.$image['i'].' '.$image['n'].' 0 R');
|
|
}
|
|
}
|
|
|
|
protected function _putresourcedict()
|
|
{
|
|
$this->_put('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
|
|
$this->_put('/Font <<');
|
|
foreach ($this->fonts as $font) {
|
|
$this->_put('/F'.$font['i'].' '.$font['n'].' 0 R');
|
|
}
|
|
$this->_put('>>');
|
|
$this->_put('/XObject <<');
|
|
$this->_putxobjectdict();
|
|
$this->_put('>>');
|
|
}
|
|
|
|
protected function _putresources()
|
|
{
|
|
$this->_putfonts();
|
|
$this->_putimages();
|
|
// Resource dictionary
|
|
$this->_newobj(2);
|
|
$this->_put('<<');
|
|
$this->_putresourcedict();
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
}
|
|
|
|
protected function _putinfo()
|
|
{
|
|
$date = @date('YmdHisO', $this->CreationDate);
|
|
$this->metadata['CreationDate'] = 'D:'.substr($date, 0, -2)."'".substr($date, -2)."'";
|
|
foreach ($this->metadata as $key => $value) {
|
|
$this->_put('/'.$key.' '.$this->_textstring($value));
|
|
}
|
|
}
|
|
|
|
protected function _putcatalog()
|
|
{
|
|
$n = $this->PageInfo[1]['n'];
|
|
$this->_put('/Type /Catalog');
|
|
$this->_put('/Pages 1 0 R');
|
|
if ($this->ZoomMode == 'fullpage') {
|
|
$this->_put('/OpenAction ['.$n.' 0 R /Fit]');
|
|
} elseif ($this->ZoomMode == 'fullwidth') {
|
|
$this->_put('/OpenAction ['.$n.' 0 R /FitH null]');
|
|
} elseif ($this->ZoomMode == 'real') {
|
|
$this->_put('/OpenAction ['.$n.' 0 R /XYZ null null 1]');
|
|
} elseif (! is_string($this->ZoomMode)) {
|
|
$this->_put('/OpenAction ['.$n.' 0 R /XYZ null null '.sprintf('%.2F', $this->ZoomMode / 100).']');
|
|
}
|
|
if ($this->LayoutMode == 'single') {
|
|
$this->_put('/PageLayout /SinglePage');
|
|
} elseif ($this->LayoutMode == 'continuous') {
|
|
$this->_put('/PageLayout /OneColumn');
|
|
} elseif ($this->LayoutMode == 'two') {
|
|
$this->_put('/PageLayout /TwoColumnLeft');
|
|
}
|
|
}
|
|
|
|
protected function _putheader()
|
|
{
|
|
$this->_put('%PDF-'.$this->PDFVersion);
|
|
}
|
|
|
|
protected function _puttrailer()
|
|
{
|
|
$this->_put('/Size '.($this->n + 1));
|
|
$this->_put('/Root '.$this->n.' 0 R');
|
|
$this->_put('/Info '.($this->n - 1).' 0 R');
|
|
}
|
|
|
|
protected function _enddoc()
|
|
{
|
|
$this->CreationDate = time();
|
|
$this->_putheader();
|
|
$this->_putpages();
|
|
$this->_putresources();
|
|
// Info
|
|
$this->_newobj();
|
|
$this->_put('<<');
|
|
$this->_putinfo();
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
// Catalog
|
|
$this->_newobj();
|
|
$this->_put('<<');
|
|
$this->_putcatalog();
|
|
$this->_put('>>');
|
|
$this->_put('endobj');
|
|
// Cross-ref
|
|
$offset = $this->_getoffset();
|
|
$this->_put('xref');
|
|
$this->_put('0 '.($this->n + 1));
|
|
$this->_put('0000000000 65535 f ');
|
|
for ($i = 1; $i <= $this->n; $i++) {
|
|
$this->_put(sprintf('%010d 00000 n ', $this->offsets[$i]));
|
|
}
|
|
// Trailer
|
|
$this->_put('trailer');
|
|
$this->_put('<<');
|
|
$this->_puttrailer();
|
|
$this->_put('>>');
|
|
$this->_put('startxref');
|
|
$this->_put($offset);
|
|
$this->_put('%%EOF');
|
|
$this->state = 3;
|
|
}
|
|
}
|