<?php
defined('C5_EXECUTE') or die("Access Denied.");
$f = File::getByID($_REQUEST['fID']);
$fp = new Permissions($f);
if (is_object($f) && $fp->canWrite()) {
	$to = $f->getTypeObject();
	if ($to->getGenericType() == FileType::T_IMAGE) {
		$imp = Loader::helper('concrete/image');
		$width = $f->getAttribute('width');
		$height = $f->getAttribute('height');
		$ext = $f->getExtension();
		
		$viewPortW = $_POST["viewPortW"];
		$viewPortH = $_POST["viewPortH"];
		$pWidth = $_POST["imageW"];
		$pHeight =  $_POST["imageH"];
		
		$image = $imp->startImageProcess($f);
		if ($image) { 
			$width = imagesx($image);
			$height = imagesy($image);
			
			// Resample
			$image_p = imagecreatetruecolor($pWidth, $pHeight);
			$imp->setTransparency($image,$image_p,$ext);
			imagecopyresampled($image_p, $image, 0, 0, 0, 0, $pWidth, $pHeight, $width, $height);
			imagedestroy($image);
			$widthR = imagesx($image_p);
			$heightR = imagesy($image_p);

			$selectorX = $_POST["selectorX"];
			$selectorY = $_POST["selectorY"];

			if($_POST["imageRotate"]){
				$angle = 360 - $_POST["imageRotate"];
				$image_p = imagerotate($image_p,$angle,0);
				
				$pWidth = imagesx($image_p);
				$pHeight = imagesy($image_p);
			
				$diffW = abs($pWidth - $widthR) / 2;
				$diffH = abs($pHeight - $heightR) / 2;
					
				$_POST["imageX"] = ($pWidth > $widthR ? $_POST["imageX"] - $diffW : $_POST["imageX"] + $diffW);
				$_POST["imageY"] = ($pHeight > $heightR ? $_POST["imageY"] - $diffH : $_POST["imageY"] + $diffH);
			}

			$dst_x = $src_x = $dst_y = $src_y = 0;

			if($_POST["imageX"] > 0){
				$dst_x = abs($_POST["imageX"]);
			}else{
				$src_x = abs($_POST["imageX"]);
			}
			if($_POST["imageY"] > 0){
				$dst_y = abs($_POST["imageY"]);
			}else{
				$src_y = abs($_POST["imageY"]);
			}


			$viewport = imagecreatetruecolor($_POST["viewPortW"],$_POST["viewPortH"]);
			$imp->setTransparency($image_p,$viewport,$ext);

			imagecopy($viewport, $image_p, $dst_x, $dst_y, $src_x, $src_y, $pWidth, $pHeight);
			imagedestroy($image_p);
			
			
			$selector = imagecreatetruecolor($_POST["selectorW"],$_POST["selectorH"]);
			$imp->setTransparency($viewport,$selector,$ext);
			imagecopy($selector, $viewport, 0, 0, $selectorX, $selectorY,$_POST["viewPortW"],$_POST["viewPortH"]);
			
			$file = Loader::helper('file')->getTemporaryDirectory() . '/' .time() . "." . $ext;
			$imp->parseImage($ext,$selector,$file);
			imagedestroy($viewport);
			
			Loader::library('file/importer');
			$fi = new FileImporter();
			$resp = $fi->import($file, $f->getFileName(), $f);
		}
	}
}