public function testCanOptimizePng()
{
$pngQuant = new Garp_Image_PngQuant();
if (!$pngQuant->isAvailable()) {
return;
}
$sourcePath = $this->_getMockImagePath();
$sourceData = file_get_contents($sourcePath);
$targetData = $pngQuant->optimizeData($sourceData);
$this->assertLessThan(strlen($sourceData), strlen($targetData));
}
/**
* Optimize images
*
* @param array $args
* @return bool success
*/
public function optimize($args)
{
$imageModel = new Model_Image();
$pngs = $imageModel->fetchAll($imageModel->select()->from($imageModel->getName(), array('filename'))->where('filename LIKE ?', '%.png'));
$pngQuant = new Garp_Image_PngQuant();
if (!$pngQuant->isAvailable()) {
Garp_Cli::errorOut('I have no business here: pngquant is not available.');
}
$gif = new Garp_Image_File();
foreach ($pngs as $png) {
$data = $gif->fetch($png->filename);
$data = $pngQuant->optimizeData($data);
$gif->store($png->filename, $data, true);
Garp_Cli::lineOut('Optimized ' . $png->filename);
}
Garp_Cli::lineOut('Done.');
}
/**
* @return Array The passed parameters.
*/
protected function _beforeStore($filename, $data, $overwrite, $formatFilename)
{
if ($formatFilename) {
$filename = $this->_correctExtension($filename);
}
if ($this->_pngQuantIsEnabled()) {
$pngQuant = new Garp_Image_PngQuant();
if ($pngQuant->isAvailable()) {
$data = $pngQuant->optimizeData($data);
}
}
return array($filename, $data, $overwrite, $formatFilename);
}