/**
* Smarty {image} function plugin
*
*/
function smarty_function_image($params, &$smarty)
{
if (!isset($params['src'])) {
return '<!-- image not set -->';
} else {
$baseDir = dirname(__FILE__) . '/../../../../';
$filename = $baseDir . $params['src'];
if (!file_exists($filename)) {
$params['src'] = 'images/default.gif';
$filename = $baseDir . $params['src'];
}
$newImageBase = $baseDir . 'tmp/media/' . $params['width'] . '-' . $params['height'] . '/';
$folders = explode('/', $params['src']);
array_pop($folders);
$folder = $newImageBase . implode('/', $folders);
if (!file_exists($folder)) {
mkdir($folder, 0777, TRUE);
}
$newPath = $newImageBase . $params['src'];
if (!file_exists($newPath)) {
$image = new MonoImage($filename);
$image->transform(new TrimTransformFactory($params['width'], $params['height']), $newPath);
}
$img = '<img src="' . str_replace($baseDir, '', $newPath) . '"';
if ($params['alt']) {
$img .= ' alt="' . $params['alt'] . '"';
} else {
$img .= ' alt=""';
}
if ($params['class']) {
$img .= ' class="' . $params['class'] . '"';
}
if ($params['width']) {
$img .= ' width="' . $params['width'] . '"';
}
if ($params['height']) {
$img .= ' height="' . $params['height'] . '"';
}
$img .= ' />';
return $img;
}
}
/**
* Merge two resources.
*
* @param resource $newimg orginal image resource
* @param resource $new_tr watermark image resource
* @return resource new orginal image resource width watermark
*/
private function mergeResources(&$newimg, &$new_tr)
{
$t_width = imagesx($new_tr);
$t_height = imagesy($new_tr);
imagesavealpha($new_tr, 1);
imagesavealpha($newimg, 1);
imagealphablending($new_tr, true);
$posx = 0;
$posy = 0;
// set x position
if ($this->position == WatermarkTransformFactory::TOP_RIGHT || $this->position == WatermarkTransformFactory::CENTER_RIGHT || $this->position == WatermarkTransformFactory::BOTTOM_RIGHT) {
$posx = $this->width - $t_width;
}
if ($this->position == WatermarkTransformFactory::TOP_CENTER || $this->position == WatermarkTransformFactory::CENTER_CENTER || $this->position == WatermarkTransformFactory::BOTTOM_CENTER) {
$posx = $this->width / 2 - $t_width / 2;
}
// set y position
if ($this->position == WatermarkTransformFactory::TOP_CENTER || $this->position == WatermarkTransformFactory::CENTER_CENTER || $this->position == WatermarkTransformFactory::BOTTOM_CENTER) {
$posy = $this->height / 2 - $t_height / 2;
}
if ($this->position == WatermarkTransformFactory::TOP_RIGHT || $this->position == WatermarkTransformFactory::CENTER_RIGHT || $this->position == WatermarkTransformFactory::BOTTOM_RIGHT) {
$posy = $this->height - $t_height;
}
if ($this->alpha == 100) {
imagecopy($newimg, $new_tr, $posx, $posy, 0, 0, $t_width, $t_height);
} else {
if ($this->transparent_image->getExtension() == 'png') {
imagecopy($newimg, $new_tr, $posx, $posy, 0, 0, $t_width, $t_height);
imagealphablending($newimg, false);
imagesavealpha($newimg, true);
} else {
if ($this->transparent_image->getExtension() == 'gif') {
imagecopymerge($newimg, $new_tr, $posx, $posy, 0, 0, $this->width, $this->height, $this->alpha);
} else {
throw new Exception('Transprent not supported for file ' . $this->transparent_image->getExtension());
}
}
}
return $new_tr;
}
