public function crop()
{
# source
$cropFrom = Request::get('crop-from');
$cropTo = Request::get('crop-to');
$fromPath = $this->getFullPath($cropFrom);
$toPath = $this->getFullPath($cropTo);
$layer = ImageWorkshop::initFromPath($fromPath);
# cropping
$newWidth = Request::get('width');
// px
$newHeight = Request::get('height');
// px
$positionX = Request::get('x');
// left translation of 0px
$positionY = Request::get('y');
// top translation of 0px
$position = "LT";
// from Left Top corner
$layer->cropInPixel($newWidth, $newHeight, $positionX, $positionY, $position);
# saving
$fileName = basename($toPath);
$dirName = dirname($toPath);
$createFolders = false;
$backgroundColor = null;
// transparent, only for PNG (otherwise it will be white if set null)
$imageQuality = 95;
// useless for GIF, usefull for PNG and JPEG (0 to 100%)
$layer->save($dirName, $fileName, $createFolders, $backgroundColor, $imageQuality);
return Response::json($cropTo);
}
/**
* Crop the document
*
* $backgroundColor can be set transparent (but script could be long to execute)
* $position: http://phpimageworkshop.com/doc/22/corners-positions-schema-of-an-image.html
*
* @param string $unit
* @param mixed $width (integer or float)
* @param mixed $height (integer or float)
* @param mixed $positionX (integer or float)
* @param mixed $positionY (integer or float)
* @param string $position
*/
public function crop($unit = self::UNIT_PIXEL, $width = 0, $height = 0, $positionX = 0, $positionY = 0, $position = 'LT')
{
if ($width < 0 || $height < 0) {
throw new ImageWorkshopLayerException('You can\'t use negative $width or $height for "' . __METHOD__ . '" method.', static::ERROR_NEGATIVE_NUMBER_USED);
}
if ($unit == self::UNIT_PERCENT) {
$width = round($width / 100 * $this->width);
$height = round($height / 100 * $this->height);
$positionX = round($positionX / 100 * $this->width);
$positionY = round($positionY / 100 * $this->height);
}
if ($width != $this->width || $positionX == 0 || ($height != $this->height || $positionY == 0)) {
if ($width == 0) {
$width = 1;
}
if ($height == 0) {
$height = 1;
}
$layerTmp = ImageWorkshop::initVirginLayer($width, $height);
$layerClone = ImageWorkshop::initVirginLayer($this->width, $this->height);
imagedestroy($layerClone->image);
$layerClone->image = $this->image;
$layerTmp->addLayer(1, $layerClone, -$positionX, -$positionY, $position);
$newPos = $layerTmp->getLayerPositions();
$layerNewPosX = $newPos[1]['x'];
$layerNewPosY = $newPos[1]['y'];
// update the layer
$this->width = $layerTmp->getWidth();
$this->height = $layerTmp->getHeight();
$this->image = $layerTmp->getResult();
unset($layerTmp);
unset($layerClone);
$this->updateLayerPositionsAfterCropping($layerNewPosX, $layerNewPosY);
}
}