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<?php list($width, $height) = getimagesize($_POST["imageSource"]); $pWidth = $_POST["imageW"]; $pHeight = $_POST["imageH"]; $ext = end(explode(".",$_POST["imageSource"])); $function = returnCorrectFunction($ext); $image = $function($_POST["imageSource"]); $width = imagesx($image); $height = imagesy($image); // Resample $image_p = imagecreatetruecolor($pWidth, $pHeight); setTransparency($image,$image_p,$ext); imagecopyresampled($image_p, $image, 0, 0, 0, 0, $pWidth, $pHeight, $width, $height); imagedestroy($image); $widthR = imagesx($image_p); $hegihtR = imagesy($image_p); if($_POST["imageRotate"]){ $angle = 360 - $_POST["imageRotate"]; $image_p = imagerotate($image_p,$angle,0); $pWidth = imagesx($image_p); $pHeight = imagesy($image_p); } if($pWidth > $_POST["viewPortW"]){ $src_x = abs(abs($_POST["imageX"]) - abs(($_POST["imageW"] - $pWidth) / 2)); $dst_x = 0; }else{ $src_x = 0; $dst_x = $_POST["imageX"] + (($_POST["imageW"] - $pWidth) / 2); } if($pHeight > $_POST["viewPortH"]){ $src_y = abs($_POST["imageY"] - abs(($_POST["imageH"] - $pHeight) / 2)); $dst_y = 0; }else{ $src_y = 0; $dst_y = $_POST["imageY"] + (($_POST["imageH"] - $pHeight) / 2); } $viewport = imagecreatetruecolor($_POST["viewPortW"],$_POST["viewPortH"]); setTransparency($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"],$_POST["selectorH"]); setTransparency($viewport,$selector,$ext); imagecopy($selector, $viewport, 0, 0, $_POST["selectorX"], $_POST["selectorY"],$_POST["viewPortW"],$_POST["viewPortH"]); $file = "tmp/test".time().".".$ext; parseImage($ext,$selector,$file); imagedestroy($viewport); //Return value echo $file; /* Functions */ function returnCorrectFunction($ext){ $function = ""; switch($ext){ case "png": $function = "imagecreatefrompng"; break; case "jpeg": $function = "imagecreatefromjpeg"; break; case "jpg": $function = "imagecreatefromjpeg"; break; case "gif": $function = "imagecreatefromgif"; break; } return $function; } function parseImage($ext,$img,$file = null){ switch($ext){ case "png": imagepng($img,($file != null ? $file : '')); break; case "jpeg": imagejpeg($img,($file ? $file : ''),90); break; case "jpg": imagejpeg($img,($file ? $file : ''),90); break; case "gif": imagegif($img,($file ? $file : '')); break; } } function setTransparency($imgSrc,$imgDest,$ext){ if($ext == "png" || $ext == "gif"){ $trnprt_indx = imagecolortransparent($imgSrc); // If we have a specific transparent color if ($trnprt_indx >= 0) { // Get the original image's transparent color's RGB values $trnprt_color = imagecolorsforindex($imgSrc, $trnprt_indx); // Allocate the same color in the new image resource $trnprt_indx = imagecolorallocate($imgDest, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']); // Completely fill the background of the new image with allocated color. imagefill($imgDest, 0, 0, $trnprt_indx); // Set the background color for new image to transparent imagecolortransparent($imgDest, $trnprt_indx); } // Always make a transparent background color for PNGs that don't have one allocated already elseif ($ext == "png") { // Turn off transparency blending (temporarily) imagealphablending($imgDest, true); // Create a new transparent color for image $color = imagecolorallocatealpha($imgDest, 0, 0, 0, 127); // Completely fill the background of the new image with allocated color. imagefill($imgDest, 0, 0, $color); // Restore transparency blending imagesavealpha($imgDest, true); } } } ?>