Support/Comments for EvoGallery 1.0-beta1

resizeImage($target_file, $target_thumb, $params['thumbSize'], $params['thumbQuality']);  // Create and save thumb

cropImage($target_file, $target_thumb, $params['thumbSize'], $params['thumbQuality']);  // Create and save thumb

/**
* Crop a given image
*/
function cropImage($filename, $target, $target_size = 110, $target_quality = 76)
{
	$info = @getimagesize($filename);  // Determine whether file is an image using getimagesize()
	if ($info)
	{
		if ($info[2] > 3)  // Use Imagemagick to convert other filetypes
		{
		/*
			// SWF, PSD, BMP, TIFF (intel + motorola)
			if ($info[2] == 4 || $info[2] == 5 || $info[2] == 6 || $info[2] == 7 || $info[2] == 8)
			{
				$cmd = $this->convert . " \"" . addslashes($filename) . "\" -quality $target_quality -quiet -resize $target_size" . "x" . "$target_size \"jpeg:" . addslashes($target) . "\"";
				shell_exec($cmd);
			}
		*/
		}
		else  // Use the GD library to convert jpeg, gif, and png images
		{
			switch ($info[2])  // Check image type
			{
				case 1:
					$img = @imagecreatefromgif($filename);
					break;
				case 2:
					$img = @imagecreatefromjpeg($filename);
					break;
				case 3:
					$img = @imagecreatefrompng($filename);
					break;
			}

			if (!$img) return false;  // Incompatible type

			$width = imageSX($img);
			$height = imageSY($img);
			if (!$width || !$height) return;  // Invalid width or height

			$ratio = ($width / $height);

			$new_height = $height;
			$new_width = $width;
			$x_start = 0;
			$y_start = 0;
			if ($width>$height)
			{
				$size = $height;
				$x_start = ceil(($width-$size)/2);  //horizontal start
			}
			if ($height>=$width)
			{
				$size = $width;
				$y_start = ceil(($height-$size)/2);  //vertical start
			}
				
			$new_img = imagecreatetruecolor($target_size, $target_size);
			if (!@imagefilledrectangle($new_img, 0, 0, $target_size, $target_size, 0)) return false;  // Could not fill image
			if (!@imagecopyresampled($new_img, $img, 0, 0, $x_start, $y_start, $target_size, $target_size, $size, $size)) return false;  // Could not resize image
			imagejpeg($new_img, $target, $target_quality);  // Save resulting thumbnail
			imagedestroy($new_img);
		}
	}
}