105 lines
2.9 KiB
PHP
105 lines
2.9 KiB
PHP
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<?php
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/**
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* Simply test the behaviour when importing pages which uses a graphic state with opacity values
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* into a page, that also uses such graphic state (handling of $groupXObject parameter of the importPage()).
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*/
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use setasign\Fpdi;
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require_once '../vendor/autoload.php';
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$start = microtime(true);
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//class AlphaPDF extends Fpdi\Tfpdf\Fpdi
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class AlphaPDF extends Fpdi\Fpdi
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{
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var $extgstates = array();
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// alpha: real value from 0 (transparent) to 1 (opaque)
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// bm: blend mode, one of the following:
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// Normal, Multiply, Screen, Overlay, Darken, Lighten, ColorDodge, ColorBurn,
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// HardLight, SoftLight, Difference, Exclusion, Hue, Saturation, Color, Luminosity
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function SetAlpha($alpha, $bm='Normal')
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{
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// set alpha for stroking (CA) and non-stroking (ca) operations
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$gs = $this->AddExtGState(array('ca'=>$alpha, 'CA'=>$alpha, 'BM'=>'/'.$bm));
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$this->SetExtGState($gs);
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}
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function AddExtGState($parms)
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{
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$n = count($this->extgstates)+1;
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$this->extgstates[$n]['parms'] = $parms;
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return $n;
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}
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function SetExtGState($gs)
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{
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$this->_out(sprintf('/GS%d gs', $gs));
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}
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function _enddoc()
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{
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if(!empty($this->extgstates) && $this->PDFVersion<'1.4')
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$this->PDFVersion='1.4';
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parent::_enddoc();
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}
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function _putextgstates()
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{
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for ($i = 1; $i <= count($this->extgstates); $i++)
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{
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$this->_newobj();
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$this->extgstates[$i]['n'] = $this->n;
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$this->_out('<</Type /ExtGState');
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$parms = $this->extgstates[$i]['parms'];
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$this->_out(sprintf('/ca %.3F', $parms['ca']));
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$this->_out(sprintf('/CA %.3F', $parms['CA']));
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$this->_out('/BM '.$parms['BM']);
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$this->_out('>>');
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$this->_out('endobj');
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}
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}
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function _putresourcedict()
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{
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parent::_putresourcedict();
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$this->_out('/ExtGState <<');
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foreach($this->extgstates as $k=>$extgstate)
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$this->_out('/GS'.$k.' '.$extgstate['n'].' 0 R');
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$this->_out('>>');
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}
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function _putresources()
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{
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$this->_putextgstates();
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parent::_putresources();
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}
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}
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$pdf = new AlphaPDF();
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$pdf->AddPage();
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$pageCount = $pdf->setSourceFile(__DIR__ . '/../tests/_files/pdfs/transparency/ex74.pdf');
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$tplIdA = $pdf->importPage(1, 'CropBox', true);
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$tplIdB = $pdf->importPage(1, 'CropBox', false);
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$pdf->SetAlpha(.1);
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$pdf->useTemplate($tplIdA, 40, 50, 100);
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$pdf->useTemplate($tplIdB, 160, 50, 100);
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$pdf->Output('alpha-test.pdf', 'F');
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echo microtime(true) - $start;
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echo "<br>";
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var_dump(memory_get_peak_usage());
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echo "<br>";
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echo filesize('alpha-test.pdf');
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?>
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<iframe src="http://pdfanalyzer2.dev1.setasign.local/plugin?file=<?php echo urlencode(realpath('alpha-test.pdf')); ?>" width="100%" height="96%"></iframe>
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