/**
* Resizes the source image.
*
* @param array $dimensions
* @return true if image resizing was successful
*/
public function resize(array $dimensions)
{
if (!$this->source_resource instanceof Imagick || !$this->destination instanceof sfFilebasePluginImage) {
throw new sfFilebasePluginException('You must set a source and a destination image to resize.');
}
$image_data = $this->gfxEditor->getScaledImageData($this->source, $dimensions);
$width = $image_data['orig_width'];
$height = $image_data['orig_height'];
$new_width = $image_data['new_width'];
$new_height = $image_data['new_height'];
$mime = $image_data['mime'];
$this->destination_resource->thumbnailImage($new_width, $new_height);
return true;
}
/**
* Resizes the source image.
*
* Uses some ideas from Adrian Mummey
* <http://www.mummey.org/2008/11/transparent-gifs-with-php-and-gd/comment-page-1/#comment-264>
* to preserve transparent color on gifs images.
*
* @param array $dimensions
* @return boolean true if image resizing was successful
*/
public function resize(array $dimensions)
{
if (!is_resource($this->source_resource) || !$this->destination instanceof sfFilebasePluginImage) {
throw new sfFilebasePluginException('You must set a source and a destination image to resize.');
}
$image_data = $this->gfxEditor->getScaledImageData($this->source, $dimensions);
$width = $image_data['orig_width'];
$height = $image_data['orig_height'];
$new_width = $image_data['new_width'];
$new_height = $image_data['new_height'];
$mime = $image_data['mime'];
$this->destination_resource = imagecreatetruecolor($new_width, $new_height);
if ($this->preserve_transparency && ($mime == 'image/gif' || $mime == 'image/png' || $mime == 'image/x-png')) {
if ($mime == 'image/gif') {
imagealphablending($this->destination_resource, false);
$transparent1 = imagecolorallocatealpha($this->destination_resource, 255, 255, 255, 127);
imagefilledrectangle($this->destination_resource, 0, 0, $new_width, $new_height, $transparent1);
imagecolortransparent($this->destination_resource, $transparent1);
} else {
imagealphablending($this->destination_resource, false);
}
imagesavealpha($this->destination_resource, true);
switch ($mime) {
case 'image/png':
case 'image/x-png':
$this->funcs['imagecopyresampled']($this->destination_resource, $this->source_resource, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
break;
case 'image/gif':
imagecopyresized($this->destination_resource, $this->source_resource, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
break;
}
} else {
switch ($mime) {
case 'image/jpeg':
case 'image/pjpeg':
$this->funcs['imagecopyresampled']($this->destination_resource, $this->source_resource, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
break;
case 'image/x-png':
case 'image/png':
$this->funcs['imagecopyresampled']($this->destination_resource, $this->source_resource, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
break;
case 'image/gif':
$this->funcs['imagecopyresampled']($this->destination_resource, $this->source_resource, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
break;
}
}
return true;
}
