496 lines
13 KiB
PHP
496 lines
13 KiB
PHP
<?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 <fabien.menager@gmail.com>
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* @license GNU LGPLv3+ http://www.gnu.org/copyleft/lesser.html
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*/
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namespace Svg\Surface;
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use Svg\Document;
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use Svg\Style;
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class SurfaceCpdf implements SurfaceInterface
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{
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const DEBUG = false;
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/** @var \Svg\Surface\CPdf */
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private $canvas;
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private $width;
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private $height;
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/** @var Style */
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private $style;
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public function __construct(Document $doc, $canvas = null)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$dimensions = $doc->getDimensions();
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$w = $dimensions["width"];
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$h = $dimensions["height"];
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if (!$canvas) {
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$canvas = new \Svg\Surface\CPdf(array(0, 0, $w, $h));
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$refl = new \ReflectionClass($canvas);
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$canvas->fontcache = realpath(dirname($refl->getFileName()) . "/../../fonts/")."/";
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}
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// Flip PDF coordinate system so that the origin is in
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// the top left rather than the bottom left
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$canvas->transform(array(
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1, 0,
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0, -1,
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0, $h
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));
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$this->width = $w;
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$this->height = $h;
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$this->canvas = $canvas;
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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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return $this->canvas->output();
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}
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public function save()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->save();
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}
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public function restore()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->restore();
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}
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public function scale($x, $y)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->transform($x, 0, 0, $y, 0, 0);
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}
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public function rotate($angle)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$a = deg2rad($angle);
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$cos_a = cos($a);
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$sin_a = sin($a);
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$this->transform(
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$cos_a, $sin_a,
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-$sin_a, $cos_a,
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0, 0
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);
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}
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public function translate($x, $y)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->transform(
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1, 0,
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0, 1,
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$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->transform(array($a, $b, $c, $d, $e, $f));
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}
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public function beginPath()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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// TODO: Implement beginPath() method.
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}
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public function closePath()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->closePath();
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}
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public function fillStroke(bool $close = false)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->fillStroke($close);
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}
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public function clip()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->clip();
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}
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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->addText($x, $y, $this->style->fontSize, $text);
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}
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public function strokeText($text, $x, $y, $maxWidth = null)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->addText($x, $y, $this->style->fontSize, $text);
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}
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public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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if (strpos($image, "data:") === 0) {
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$parts = explode(',', $image, 2);
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$data = $parts[1];
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$base64 = false;
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$token = strtok($parts[0], ';');
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while ($token !== false) {
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if ($token == 'base64') {
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$base64 = true;
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}
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$token = strtok(';');
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}
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if ($base64) {
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$data = base64_decode($data);
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}
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}
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else {
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$data = file_get_contents($image);
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}
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$image = tempnam(sys_get_temp_dir(), "svg");
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file_put_contents($image, $data);
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$img = $this->image($image, $sx, $sy, $sw, $sh, "normal");
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unlink($image);
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}
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public static function getimagesize($filename)
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{
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static $cache = array();
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if (isset($cache[$filename])) {
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return $cache[$filename];
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}
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list($width, $height, $type) = getimagesize($filename);
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if ($width == null || $height == null) {
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$data = file_get_contents($filename, null, null, 0, 26);
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if (substr($data, 0, 2) === "BM") {
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$meta = unpack('vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight', $data);
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$width = (int)$meta['width'];
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$height = (int)$meta['height'];
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$type = IMAGETYPE_BMP;
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}
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}
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return $cache[$filename] = array($width, $height, $type);
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}
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function image($img, $x, $y, $w, $h, $resolution = "normal")
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{
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list($width, $height, $type) = $this->getimagesize($img);
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switch ($type) {
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case IMAGETYPE_JPEG:
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$this->canvas->addJpegFromFile($img, $x, $y - $h, $w, $h);
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break;
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case IMAGETYPE_GIF:
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case IMAGETYPE_BMP:
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// @todo use cache for BMP and GIF
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$img = $this->_convert_gif_bmp_to_png($img, $type);
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case IMAGETYPE_PNG:
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$this->canvas->addPngFromFile($img, $x, $y - $h, $w, $h);
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break;
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default:
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}
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}
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public function lineTo($x, $y)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->lineTo($x, $y);
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}
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public function moveTo($x, $y)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->moveTo($x, $y);
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}
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public function quadraticCurveTo($cpx, $cpy, $x, $y)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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// FIXME not accurate
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$this->canvas->quadTo($cpx, $cpy, $x, $y);
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}
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public function bezierCurveTo($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, $y);
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}
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public function arcTo($x1, $y1, $x2, $y2, $radius)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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}
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public function arc($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->ellipse($x, $y, $radius, $radius, 0, 8, $startAngle, $endAngle, false, false, false, true);
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}
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public function circle($x, $y, $radius)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, 0, 360, true, false, false, false);
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}
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public function ellipse($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, $radiusY, 0, 8, 0, 360, false, false, false, false);
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}
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public function fillRect($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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public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$canvas = $this->canvas;
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if ($rx <= 0.000001/* && $ry <= 0.000001*/) {
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$canvas->rect($x, $y, $w, $h);
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return;
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}
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$rx = min($rx, $w / 2);
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$rx = min($rx, $h / 2);
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/* Define a path for a rectangle with corners rounded by a given radius.
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* Start from the lower left corner and proceed counterclockwise.
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*/
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$this->moveTo($x + $rx, $y);
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/* Start of the arc segment in the lower right corner */
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$this->lineTo($x + $w - $rx, $y);
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/* Arc segment in the lower right corner */
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$this->arc($x + $w - $rx, $y + $rx, $rx, 270, 360);
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/* Start of the arc segment in the upper right corner */
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$this->lineTo($x + $w, $y + $h - $rx );
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/* Arc segment in the upper right corner */
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$this->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90);
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/* Start of the arc segment in the upper left corner */
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$this->lineTo($x + $rx, $y + $h);
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/* Arc segment in the upper left corner */
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$this->arc($x + $rx, $y + $h - $rx, $rx, 90, 180);
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/* Start of the arc segment in the lower left corner */
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$this->lineTo($x , $y + $rx);
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/* Arc segment in the lower left corner */
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$this->arc($x + $rx, $y + $rx, $rx, 180, 270);
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}
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public function fill()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->fill();
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}
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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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public function stroke(bool $close = false)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->stroke($close);
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}
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public function endPath()
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->canvas->endPath();
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}
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public function measureText($text)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$style = $this->getStyle();
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$this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
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return $this->canvas->getTextWidth($this->getStyle()->fontSize, $text);
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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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public function setStyle(Style $style)
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{
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if (self::DEBUG) echo __FUNCTION__ . "\n";
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$this->style = $style;
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$canvas = $this->canvas;
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if (is_array($style->stroke) && $stroke = $style->stroke) {
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$canvas->setStrokeColor(array((float)$stroke[0]/255, (float)$stroke[1]/255, (float)$stroke[2]/255), true);
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}
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if (is_array($style->fill) && $fill = $style->fill) {
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$canvas->setColor(array((float)$fill[0]/255, (float)$fill[1]/255, (float)$fill[2]/255), true);
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}
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if ($fillRule = strtolower($style->fillRule)) {
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$canvas->setFillRule($fillRule);
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}
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$opacity = $style->opacity;
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if ($opacity !== null && $opacity < 1.0) {
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$canvas->setLineTransparency("Normal", $opacity);
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$canvas->currentLineTransparency = null;
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$canvas->setFillTransparency("Normal", $opacity);
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$canvas->currentFillTransparency = null;
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}
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else {
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$fillOpacity = $style->fillOpacity;
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if ($fillOpacity !== null && $fillOpacity < 1.0) {
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$canvas->setFillTransparency("Normal", $fillOpacity);
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$canvas->currentFillTransparency = null;
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}
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$strokeOpacity = $style->strokeOpacity;
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if ($strokeOpacity !== null && $strokeOpacity < 1.0) {
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$canvas->setLineTransparency("Normal", $strokeOpacity);
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$canvas->currentLineTransparency = null;
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}
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}
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$dashArray = null;
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if ($style->strokeDasharray) {
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$dashArray = preg_split('/\s*,\s*/', $style->strokeDasharray);
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}
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$phase=0;
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if ($style->strokeDashoffset) {
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$phase = $style->strokeDashoffset;
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}
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$canvas->setLineStyle(
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$style->strokeWidth,
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$style->strokeLinecap,
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$style->strokeLinejoin,
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$dashArray,
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$phase
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);
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$this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
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}
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public function setFont($family, $style, $weight)
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{
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$map = [
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"serif" => "times",
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"sans-serif" => "helvetica",
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"fantasy" => "symbol",
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"cursive" => "times",
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"monospace" => "courier"
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];
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$styleMap = [
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"courier" => [
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"" => "Courier",
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"b" => "Courier-Bold",
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"i" => "Courier-Oblique",
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"bi" => "Courier-BoldOblique",
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],
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"helvetica" => [
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"" => "Helvetica",
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"b" => "Helvetica-Bold",
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"i" => "Helvetica-Oblique",
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"bi" => "Helvetica-BoldOblique",
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],
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"symbol" => [
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"" => "Symbol"
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],
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"times" => [
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"" => "Times-Roman",
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"b" => "Times-Bold",
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"i" => "Times-Italic",
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"bi" => "Times-BoldItalic",
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],
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];
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$family_lc = strtolower($family);
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if (isset($map[$family_lc])) {
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$family = $map[$family_lc];
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}
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if (isset($styleMap[$family])) {
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$key = "";
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$weight = strtolower($weight);
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if ($weight === "bold" || $weight === "bolder" || (is_numeric($weight) && $weight >= 600)) {
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$key .= "b";
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}
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$style = strtolower($style);
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if ($style === "italic" || $style === "oblique") {
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$key .= "i";
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}
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if (isset($styleMap[$family][$key])) {
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$family = $styleMap[$family][$key];
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}
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}
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$this->canvas->selectFont("$family.afm");
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}
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}
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