public function output($save_as = null, &$format = null)
{
$output_format = 'SVG';
if (isset($_SERVER['HTTP_USER_AGENT']) || isset($_REQUEST['force_format'])) {
static $browser_renderer = null;
if (isset($_REQUEST['force_format'])) {
// Don't nest the force_format within the browser_renderer null check in case its overriden by OpenBenchmarking.org dynamically
$output_format = $_REQUEST['force_format'];
} else {
if ($browser_renderer == null) {
$output_format = pts_render::renderer_compatibility_check($_SERVER['HTTP_USER_AGENT']);
} else {
$output_format = $browser_renderer;
}
}
}
$format = $output_format;
switch ($output_format) {
case 'JPG':
case 'JPEG':
$output = pts_svg_dom_gd::svg_dom_to_gd($this->dom, 'JPEG');
$output_format = 'jpg';
break;
case 'PNG':
$output = pts_svg_dom_gd::svg_dom_to_gd($this->dom, 'PNG');
$output_format = 'png';
break;
case 'SVG':
default:
$output = $this->save_xml();
$output_format = 'svg';
break;
}
if ($output == null) {
return false;
} else {
if ($save_as) {
return file_put_contents(str_replace('BILDE_EXTENSION', $output_format, $save_as), $output);
} else {
return $output;
}
}
}
public static function svg_dom_to_gd($dom, $format)
{
if (extension_loaded('gd') && function_exists('imagettftext') && $dom->childNodes->item(2)->nodeName == 'svg') {
$width = $dom->childNodes->item(2)->attributes->getNamedItem('width')->nodeValue;
$height = $dom->childNodes->item(2)->attributes->getNamedItem('height')->nodeValue;
if ($width > 1 && $height > 1) {
$gd = imagecreatetruecolor($width, $height);
if (!isset($_REQUEST['svg_dom_gd_no_interlacing'])) {
// PHP FPDF fails on image interlacing
imageinterlace($gd, true);
}
if (function_exists('imageantialias')) {
imageantialias($gd, true);
}
} else {
return false;
}
//foreach($dom->childNodes->item(2)->attributes as $atrr)
// { echo $atrr->name . ' ' . $atrr->value . PHP_EOL; }
} else {
// If the first tag isn't an svg tag, chances are something is broke...
return false;
}
self::$color_table = array();
foreach ($dom->childNodes->item(2)->childNodes as $node) {
self::evaluate_node($node, $gd);
// imagejpeg($this->image, $output_file, $quality);
//var_dump($node->attributes);
}
$tmp_output = tempnam('/tmp', 'pts-gd');
switch ($format) {
case 'JPEG':
imagejpeg($gd, $tmp_output, 100);
$output = file_get_contents($tmp_output);
unlink($tmp_output);
break;
case 'PNG':
imagepng($gd, $tmp_output, 1);
$output = file_get_contents($tmp_output);
unlink($tmp_output);
break;
}
return $output;
}
public static function svg_dom_to_gd($dom, $format)
{
if (extension_loaded('gd') && function_exists('imagettftext') && $dom->childNodes->item(2)->nodeName == 'svg') {
$width = $dom->childNodes->item(2)->attributes->getNamedItem('width')->nodeValue;
$height = $dom->childNodes->item(2)->attributes->getNamedItem('height')->nodeValue;
if ($width > 1 && $height > 1) {
$gd = imagecreatetruecolor($width, $height);
if (!isset($_REQUEST['svg_dom_gd_no_interlacing'])) {
// PHP FPDF fails on image interlacing
imageinterlace($gd, true);
}
if (function_exists('imageantialias')) {
imageantialias($gd, true);
}
} else {
return false;
}
//foreach($dom->childNodes->item(2)->attributes as $atrr)
// { echo $atrr->name . ' ' . $atrr->value . PHP_EOL; }
} else {
// If the first tag isn't an svg tag, chances are something is broke...
return false;
}
self::$color_table = array();
foreach ($dom->childNodes->item(2)->childNodes as $node) {
if ($node->nodeName == 'a') {
// This is just a link so get whatever is the child of the embedded link to display
$node = $node->childNodes->item(0);
}
switch ($node->nodeName) {
case 'svg':
// Not relevant at this point to GD rendering
break;
case 'line':
$a = self::attributes_to_array($node, array('x1', 'y1', 'x2', 'y2', 'stroke', 'stroke-width', 'stroke-dasharray'));
$line_color = self::gd_color_allocate($gd, $a['stroke']);
if ($a['stroke-dasharray'] != null) {
list($dash_length, $blank_length) = explode(',', $a['stroke-dasharray']);
if ($a['y1'] == $a['y2']) {
for ($i = $a['x1']; $i < $a['x2']; $i += $blank_length + $dash_length) {
imagefilledrectangle($gd, $i, $a['y1'] - floor($a['stroke-width'] / 2), $i + $dash_length, $a['y1'] + floor($a['stroke-width'] / 2), $line_color);
//imageline($gd, $i, $pos, ($i + $dash_length), $pos, $line_color);
}
} else {
for ($i = $a['y1']; $i < $a['y2']; $i += $blank_length + $dash_length) {
imagefilledrectangle($gd, $a['x1'] - floor($a['stroke-width'] / 2), $i, $a['x1'] + floor($a['stroke-width'] / 2), $i + $dash_length, $line_color);
//imageline($gd, $i, $pos, ($i + $dash_length), $pos, $line_color);
}
}
} else {
imagesetthickness($gd, $a['stroke-width']);
imageline($gd, $a['x1'], $a['y1'], $a['x2'], $a['y2'], $line_color);
}
break;
case 'polyline':
$a = self::attributes_to_array($node, array('points', 'stroke', 'stroke-width', 'fill'));
imagesetthickness($gd, $a['stroke-width']);
$line_color = self::gd_color_allocate($gd, $a['stroke']);
$a['points'] = explode(' ', $a['points']);
for ($i = 1; $i < count($a['points']); $i++) {
$s_point = explode(',', $a['points'][$i - 1]);
$e_point = explode(',', $a['points'][$i]);
imageline($gd, $s_point[0], $s_point[1], $e_point[0], $e_point[1], $line_color);
}
break;
case 'text':
$a = self::attributes_to_array($node, array('x', 'y', 'font-size', 'text-anchor', 'fill', 'dominant-baseline', 'transform'));
$text = $node->nodeValue;
$a['font-size'] -= 1.6;
$box_array = imagettfbbox($a['font-size'], 0, self::$default_font, $text);
$box_width = $box_array[4] - $box_array[6];
$box_height = $box_array[1] - $box_array[7];
$rotate = 0;
if ($a['transform']) {
$rotate = substr($a['transform'], 7);
$rotate = substr($rotate, 0, strpos($rotate, ' '));
// $rotate this should be the rotation degree in SVG
if ($rotate != 0) {
$rotate += 180;
}
switch ($a['text-anchor']) {
case 'middle':
$a['y'] -= round($box_width / 2);
break;
}
} else {
switch ($a['text-anchor']) {
case 'start':
break;
case 'middle':
$a['x'] -= round($box_width / 2);
break;
case 'end':
$a['x'] -= $box_width - 4;
break;
}
switch ($a['dominant-baseline']) {
case 'text-before-edge':
$a['y'] += $box_height;
break;
case 'middle':
$a['y'] += round($box_height / 2);
break;
}
}
imagettftext($gd, $a['font-size'], $rotate, $a['x'], $a['y'], self::gd_color_allocate($gd, $a['fill']), self::$default_font, $text);
break;
case 'polygon':
$a = self::attributes_to_array($node, array('points', 'fill', 'stroke', 'stroke-width'));
$a['points'] = explode(' ', $a['points']);
$points = array();
foreach ($a['points'] as &$point) {
$point = explode(',', $point);
array_push($points, $point[0]);
array_push($points, $point[1]);
}
if ($a['stroke-width']) {
imagesetthickness($gd, $a['stroke-width']);
imagefilledpolygon($gd, $points, count($a['points']), self::gd_color_allocate($gd, $a['stroke']));
}
imagefilledpolygon($gd, $points, count($a['points']), self::gd_color_allocate($gd, $a['fill']));
break;
case 'rect':
// Draw a rectangle
$a = self::attributes_to_array($node, array('x', 'y', 'width', 'height', 'fill', 'stroke', 'stroke-width'));
if ($a['fill'] != 'none') {
imagefilledrectangle($gd, $a['x'], $a['y'], $a['x'] + $a['width'], $a['y'] + $a['height'], self::gd_color_allocate($gd, $a['fill']));
}
if ($a['stroke'] != null) {
// TODO: implement $a['stroke-width']
imagerectangle($gd, $a['x'], $a['y'], $a['x'] + $a['width'], $a['y'] + $a['height'], self::gd_color_allocate($gd, $a['stroke']));
}
break;
case 'circle':
// Draw a circle
$a = self::attributes_to_array($node, array('cx', 'cy', 'r', 'fill'));
imagefilledellipse($gd, $a['cx'], $a['cy'], $a['r'] * 2, $a['r'] * 2, self::gd_color_allocate($gd, $a['fill']));
break;
case 'ellipse':
// Draw a ellipse/circle
$a = self::attributes_to_array($node, array('cx', 'cy', 'rx', 'ry', 'fill', 'stroke', 'stroke-width'));
imagefilledellipse($gd, $a['cx'], $a['cy'], $a['rx'] * 2, $a['ry'] * 2, self::gd_color_allocate($gd, $a['fill']));
if ($a['stroke'] != null) {
// TODO: implement $a['stroke-width']
imagefilledellipse($gd, $a['cx'], $a['cy'], $a['rx'] * 2, $a['ry'] * 2, self::gd_color_allocate($gd, $a['stroke']));
}
break;
case 'image':
$a = self::attributes_to_array($node, array('xlink:href', 'x', 'y', 'width', 'height'));
if (substr($a['xlink:href'], 0, 22) == 'data:image/png;base64,') {
$img = imagecreatefromstring(base64_decode(substr($a['xlink:href'], 22)));
} else {
$img = imagecreatefromstring(file_get_contents($a['xlink:href']));
}
imagecopyresampled($gd, $img, $a['x'], $a['y'], 0, 0, $a['width'], $a['height'], imagesx($img), imagesy($img));
break;
default:
if (PTS_IS_CLIENT) {
echo $node->nodeName . ' not implemented.' . PHP_EOL;
}
break;
}
// imagejpeg($this->image, $output_file, $quality);
//var_dump($node->attributes);
}
$tmp_output = tempnam('/tmp', 'pts-gd');
switch ($format) {
case 'JPEG':
imagejpeg($gd, $tmp_output, 100);
$output = file_get_contents($tmp_output);
unlink($tmp_output);
break;
case 'PNG':
imagepng($gd, $tmp_output, 1);
$output = file_get_contents($tmp_output);
unlink($tmp_output);
break;
}
return $output;
}
