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<?php |
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/** |
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* @package php-svg-lib |
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* @link http://github.com/PhenX/php-svg-lib |
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* @author Fabien Ménager <[email protected]> |
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* @license GNU LGPLv3+ http://www.gnu.org/copyleft/lesser.html |
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*/ |
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|
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namespace Svg\Surface; |
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|
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use Svg\Style; |
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use Svg\Document; |
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|
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class SurfacePDFLib implements SurfaceInterface |
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{ |
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const DEBUG = false; |
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|
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private $canvas; |
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|
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private $width; |
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private $height; |
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|
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/** @var Style */ |
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private $style; |
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|
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public function __construct(Document $doc, $canvas = null) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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$dimensions = $doc->getDimensions(); |
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$w = $dimensions["width"]; |
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$h = $dimensions["height"]; |
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|
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if (!$canvas) { |
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$canvas = new \PDFlib(); |
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|
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/* all strings are expected as utf8 */ |
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$canvas->set_option("stringformat=utf8"); |
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$canvas->set_option("errorpolicy=return"); |
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|
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/* open new PDF file; insert a file name to create the PDF on disk */ |
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if ($canvas->begin_document("", "") == 0) { |
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die("Error: " . $canvas->get_errmsg()); |
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} |
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$canvas->set_info("Creator", "PDFlib starter sample"); |
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$canvas->set_info("Title", "starter_graphics"); |
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|
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$canvas->begin_page_ext($w, $h, ""); |
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} |
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|
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// Flip PDF coordinate system so that the origin is in |
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// the top left rather than the bottom left |
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$canvas->setmatrix( |
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1, 0, |
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0, -1, |
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0, $h |
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); |
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|
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$this->width = $w; |
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$this->height = $h; |
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|
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$this->canvas = $canvas; |
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} |
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|
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function out() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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$this->canvas->end_page_ext(""); |
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$this->canvas->end_document(""); |
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|
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return $this->canvas->get_buffer(); |
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} |
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|
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public function save() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->save(); |
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} |
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|
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public function restore() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->restore(); |
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} |
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|
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public function scale($x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->scale($x, $y); |
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} |
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|
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public function rotate($angle) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->rotate($angle); |
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} |
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|
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public function translate($x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->translate($x, $y); |
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} |
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|
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public function transform($a, $b, $c, $d, $e, $f) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->concat($a, $b, $c, $d, $e, $f); |
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} |
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|
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public function beginPath() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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// TODO: Implement beginPath() method. |
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} |
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|
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public function closePath() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->closepath(); |
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} |
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|
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public function fillStroke(bool $close = false) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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if ($close) { |
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$this->canvas->closepath_fill_stroke(); |
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} else { |
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$this->canvas->fill_stroke(); |
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} |
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} |
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|
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public function clip() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->clip(); |
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} |
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|
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public function fillText($text, $x, $y, $maxWidth = null) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->set_text_pos($x, $y); |
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$this->canvas->show($text); |
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} |
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|
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public function strokeText($text, $x, $y, $maxWidth = null) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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// TODO: Implement drawImage() method. |
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} |
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|
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public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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if (strpos($image, "data:") === 0) { |
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$data = substr($image, strpos($image, ";") + 1); |
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if (strpos($data, "base64") === 0) { |
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$data = base64_decode(substr($data, 7)); |
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} |
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} |
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else { |
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$data = file_get_contents($image); |
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} |
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|
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$image = tempnam(sys_get_temp_dir(), "svg"); |
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file_put_contents($image, $data); |
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|
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$img = $this->canvas->load_image("auto", $image, ""); |
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|
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$sy = $sy - $sh; |
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$this->canvas->fit_image($img, $sx, $sy, 'boxsize={' . "$sw $sh" . '} fitmethod=entire'); |
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|
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unlink($image); |
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} |
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|
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public function lineTo($x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->lineto($x, $y); |
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} |
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|
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public function moveTo($x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->moveto($x, $y); |
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} |
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|
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public function quadraticCurveTo($cpx, $cpy, $x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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// FIXME not accurate |
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$this->canvas->curveTo($cpx, $cpy, $cpx, $cpy, $x, $y); |
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} |
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|
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public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->curveto($cp1x, $cp1y, $cp2x, $cp2y, $x, $y); |
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} |
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|
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public function arcTo($x1, $y1, $x2, $y2, $radius) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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} |
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|
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public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->arc($x, $y, $radius, $startAngle, $endAngle); |
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} |
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|
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public function circle($x, $y, $radius) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->circle($x, $y, $radius); |
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} |
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|
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public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->ellipse($x, $y, $radiusX, $radiusY); |
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} |
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|
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public function fillRect($x, $y, $w, $h) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->rect($x, $y, $w, $h); |
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$this->fill(); |
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} |
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|
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public function rect($x, $y, $w, $h, $rx = 0, $ry = 0) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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$canvas = $this->canvas; |
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|
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if ($rx <= 0.000001/* && $ry <= 0.000001*/) { |
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$canvas->rect($x, $y, $w, $h); |
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|
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return; |
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} |
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|
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/* Define a path for a rectangle with corners rounded by a given radius. |
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* Start from the lower left corner and proceed counterclockwise. |
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*/ |
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$canvas->moveto($x + $rx, $y); |
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|
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/* Start of the arc segment in the lower right corner */ |
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$canvas->lineto($x + $w - $rx, $y); |
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|
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/* Arc segment in the lower right corner */ |
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$canvas->arc($x + $w - $rx, $y + $rx, $rx, 270, 360); |
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|
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/* Start of the arc segment in the upper right corner */ |
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$canvas->lineto($x + $w, $y + $h - $rx ); |
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|
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/* Arc segment in the upper right corner */ |
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$canvas->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90); |
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|
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/* Start of the arc segment in the upper left corner */ |
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$canvas->lineto($x + $rx, $y + $h); |
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|
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/* Arc segment in the upper left corner */ |
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$canvas->arc($x + $rx, $y + $h - $rx, $rx, 90, 180); |
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|
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/* Start of the arc segment in the lower left corner */ |
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$canvas->lineto($x , $y + $rx); |
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|
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/* Arc segment in the lower left corner */ |
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$canvas->arc($x + $rx, $y + $rx, $rx, 180, 270); |
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} |
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|
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public function fill() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->fill(); |
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} |
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|
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public function strokeRect($x, $y, $w, $h) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->rect($x, $y, $w, $h); |
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$this->stroke(); |
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} |
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|
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public function stroke(bool $close = false) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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if ($close) { |
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$this->canvas->closepath_stroke(); |
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} else { |
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$this->canvas->stroke(); |
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} |
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} |
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|
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public function endPath() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$this->canvas->endPath(); |
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} |
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|
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public function measureText($text) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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$style = $this->getStyle(); |
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$font = $this->getFont($style->fontFamily, $style->fontStyle); |
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|
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return $this->canvas->stringwidth($text, $font, $this->getStyle()->fontSize); |
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} |
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|
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public function getStyle() |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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return $this->style; |
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} |
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|
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public function setStyle(Style $style) |
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{ |
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if (self::DEBUG) echo __FUNCTION__ . "\n"; |
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|
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$this->style = $style; |
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$canvas = $this->canvas; |
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|
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if (is_array($style->stroke) && $stroke = $style->stroke) { |
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$canvas->setcolor( |
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"stroke", |
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"rgb", |
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$stroke[0] / 255, |
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$stroke[1] / 255, |
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$stroke[2] / 255, |
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null |
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); |
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} |
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|
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if (is_array($style->fill) && $fill = $style->fill) { |
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$canvas->setcolor( |
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"fill", |
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"rgb", |
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$fill[0] / 255, |
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$fill[1] / 255, |
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$fill[2] / 255, |
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null |
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); |
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} |
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|
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if ($fillRule = strtolower($style->fillRule)) { |
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$map = array( |
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"nonzero" => "winding", |
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"evenodd" => "evenodd", |
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); |
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|
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if (isset($map[$fillRule])) { |
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$fillRule = $map[$fillRule]; |
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|
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$canvas->set_parameter("fillrule", $fillRule); |
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} |
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} |
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|
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$opts = array(); |
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if ($style->strokeWidth > 0.000001) { |
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$opts[] = "linewidth=$style->strokeWidth"; |
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} |
| 365 |
|
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if (in_array($style->strokeLinecap, array("butt", "round", "projecting"))) { |
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$opts[] = "linecap=$style->strokeLinecap"; |
| 368 |
} |
| 369 |
|
| 370 |
if (in_array($style->strokeLinejoin, array("miter", "round", "bevel"))) { |
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$opts[] = "linejoin=$style->strokeLinejoin"; |
| 372 |
} |
| 373 |
|
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$canvas->set_graphics_option(implode(" ", $opts)); |
| 375 |
|
| 376 |
$opts = array(); |
| 377 |
$opacity = $style->opacity; |
| 378 |
if ($opacity !== null && $opacity < 1.0) { |
| 379 |
$opts[] = "opacityfill=$opacity"; |
| 380 |
$opts[] = "opacitystroke=$opacity"; |
| 381 |
} |
| 382 |
else { |
| 383 |
$fillOpacity = $style->fillOpacity; |
| 384 |
if ($fillOpacity !== null && $fillOpacity < 1.0) { |
| 385 |
$opts[] = "opacityfill=$fillOpacity"; |
| 386 |
} |
| 387 |
|
| 388 |
$strokeOpacity = $style->strokeOpacity; |
| 389 |
if ($strokeOpacity !== null && $strokeOpacity < 1.0) { |
| 390 |
$opts[] = "opacitystroke=$strokeOpacity"; |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
if (count($opts)) { |
| 395 |
$gs = $canvas->create_gstate(implode(" ", $opts)); |
| 396 |
$canvas->set_gstate($gs); |
| 397 |
} |
| 398 |
|
| 399 |
$font = $this->getFont($style->fontFamily, $style->fontStyle); |
| 400 |
if ($font) { |
| 401 |
$canvas->setfont($font, $style->fontSize); |
| 402 |
} |
| 403 |
} |
| 404 |
|
| 405 |
private function getFont($family, $style) |
| 406 |
{ |
| 407 |
$map = array( |
| 408 |
"serif" => "Times", |
| 409 |
"sans-serif" => "Helvetica", |
| 410 |
"fantasy" => "Symbol", |
| 411 |
"cursive" => "Times", |
| 412 |
"monospace" => "Courier", |
| 413 |
|
| 414 |
"arial" => "Helvetica", |
| 415 |
"verdana" => "Helvetica", |
| 416 |
); |
| 417 |
|
| 418 |
$family = strtolower($family); |
| 419 |
if (isset($map[$family])) { |
| 420 |
$family = $map[$family]; |
| 421 |
} |
| 422 |
|
| 423 |
return $this->canvas->load_font($family, "unicode", "fontstyle=$style"); |
| 424 |
} |
| 425 |
|
| 426 |
public function setFont($family, $style, $weight) |
| 427 |
{ |
| 428 |
// TODO: Implement setFont() method. |
| 429 |
} |
| 430 |
} |
| 431 |
|
