/**
* Adds an image watermark to the current image
*/
public function watermark($file = '', $position = 'bottom right', $margin = 10)
{
try {
$wmrk = new Image();
$wmrk->load($file);
$wmrk->maxSize(min($this->getWidth(), $this->getHeight()) - $margin * 2);
$position = strtolower(Sanitize::toAlnum($position));
$minX = $margin;
$minY = $margin;
$centerX = ($this->getWidth() - $wmrk->getWidth()) / 2;
$centerY = ($this->getHeight() - $wmrk->getHeight()) / 2;
$maxX = $this->getWidth() - $wmrk->getWidth() - $margin;
$maxY = $this->getHeight() - $wmrk->getHeight() - $margin;
$xPos = $maxX;
$yPos = $maxY;
if (strpos($position, 'top') !== false) {
$yPos = $minY;
} else {
if (strpos($position, 'middle') !== false) {
$yPos = $centerY;
} else {
if (strpos($position, 'bottom') !== false) {
$yPos = $maxY;
}
}
}
if (strpos($position, 'left') !== false) {
$xPos = $minX;
} else {
if (strpos($position, 'center') !== false) {
$xPos = $centerX;
} else {
if (strpos($position, 'right') !== false) {
$xPos = $maxX;
}
}
}
return imagecopy($this->img_source, $wmrk->getResource(), $xPos, $yPos, 0, 0, $wmrk->getWidth(), $wmrk->getHeight());
} catch (Exception $e) {
}
return false;
}
/**
* Removes an injected object instance if available
*/
public function removeObject($name = '')
{
$name = Sanitize::toAlnum($name);
if (!empty($name) && array_key_exists($name, $this->_objects)) {
unset($this->_objects[$name]);
}
}