<?
require_once("file.class.php");

class Image extends File {

	function _setType($type) {
		switch($type) {
			case 1 : {
				$this->pic_type = "gif";
				return true;
			}
			case 2 : {
				$this->pic_type = "jpeg";
				return true;
			}
			case 3 : {
				$this->pic_type = "png";
				return true;
			}
			default : {
				//$this->warning("Not valid image type!");
				return false;
			}
		}
	}

	function _imagecreatefrom($filename) {
		$_imagecreatefrom = "imagecreatefrom".$this->pic_type;
		$image = $_imagecreatefrom($filename);

		return $image;
	}

	function _image(&$image_o, $filename, $quality = 75) {
		$_image = "image".$this->pic_type;
		$_image($image_o, $filename, $quality);
	}

	function Resize_IMG($filename,$resize_width = 0,$resize_height = 0, $pr = false) {
		if($resize_width < 1 && $resize_height < 1) return true;
		list($original_width, $original_height, $type) = getimagesize($filename);
		if($resize_width>$original_width && $resize_height>$original_height) return true;
		$this->_setType($type);
		if($pr) {
			if($resize_width < 1) $resize_width = $original_width;
			$height = $original_height*($resize_width/$original_width);
			$width = $resize_width;
			if($resize_height > 0) {
				if($height>$resize_height) {
					$width = $original_width*($resize_height/$original_height);
					$height = $resize_height;
				}
			}
			if($width>$original_width) return true;
		} else {
			if($resize_width < 1) $resize_width = $original_width;
			if($resize_height < 1) $resize_height = $original_height;
			$width = $resize_width;
			$height = $resize_height;
		}
		if($width < 1 || $height < 1) {
			$width = $original_width;
			$height = $original_height;
		}

		$x = 0;
		$y = 0;
		if(!$pr) {
			if ($original_width >= $width && $original_height >= $height) {
				if($original_height < $original_width) {
					$ratio = (double)($original_height / $height);
					$cpyWidth = $width * $ratio;
					if ($cpyWidth > $original_width) {
						$ratio = (double)($original_width / $width);
						$cpyWidth = $original_width;
						$cpyHeight = $height * $ratio;
						//$y = ($original_height - $cpyHeight) / 2;
					} else {
						$cpyHeight = $original_height;
						$x = ($original_width - $cpyWidth) / 2;
					}
				} else {
					$ratio = (double)($original_width / $width);
					$cpyHeight = $height * $ratio;
					if ($cpyHeight > $original_height) {
						$ratio = (double)($original_height / $height);
						$cpyHeight = $original_height;
						$cpyWidth = $width * $ratio;
						$x = ($original_width - $cpyWidth) / 2;
					} else {
						$cpyWidth = $original_width;
						//$y = ($original_height - $cpyHeight) / 2;
					}
				}
				$original_width = $cpyWidth;
				$original_height = $cpyHeight;
			}
			else if($original_width<$width) {
				$width = $original_width*($height/$original_height);
				$height = $resize_height;
			} else {
				$height = $original_height*($width/$original_width);
				$width = $resize_width;
			}
		}

		$width = round($width);
		$height = round($height);
		$width = round($width);
		$height = round($height);
		$width = round($width);
		$height = round($height);

		$this->image = imagecreatetruecolor($width, $height);
		$handle = $this->_imagecreatefrom($filename);
		imagecopyresampled($this->image, $handle, 0, 0, $x, $y, $width, $height, $original_width, $original_height);
		imagedestroy($handle);
		if($width<=120) $quality = 100;
		else $quality = 75;
		$this->_image($this->image, $filename, $quality);
		imagedestroy($this->image);

		return true;
	}

	function forse_resize_image($file, $w, $h, $crop=FALSE) {
		list($width, $height) = getimagesize($file);
		$r = $width / $height;
		if ($crop) {
			if ($width > $height) {
				$width = ceil($width-($width*abs($r-$w/$h)));
			} else {
				$height = ceil($height-($height*abs($r-$w/$h)));
			}
			$newwidth = $w;
			$newheight = $h;
		} else {
			if ($w/$h > $r) {
				$newwidth = $h*$r;
				$newheight = $h;
			} else {
				$newheight = $w/$r;
				$newwidth = $w;
			}
		}
		$src = imagecreatefromjpeg($file);
		$dst = imagecreatetruecolor($newwidth, $newheight);
		imagecopyresampled($dst, $src, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

		return $dst;
	}

    function square_resize($max_width, $max_height, $source_file, $dst_dir, $quality = 80){
        $imgsize = getimagesize($source_file);
        $width = $imgsize[0];
        $height = $imgsize[1];
        $mime = $imgsize['mime'];

        switch($mime){
            case 'image/gif':
                $image_create = "imagecreatefromgif";
                $image = "imagegif";
                break;

            case 'image/png':
                $image_create = "imagecreatefrompng";
                $image = "imagepng";
                $quality = 7;
                break;

            case 'image/jpeg':
                $image_create = "imagecreatefromjpeg";
                $image = "imagejpeg";
                $quality = 80;
                break;

            default:
                return false;
                break;
        }

        $dst_img = imagecreatetruecolor($max_width, $max_height);
        $src_img = $image_create($source_file);

        $width_new = $height * $max_width / $max_height;
        $height_new = $width * $max_height / $max_width;
        //if the new width is greater than the actual width of the image, then the height is too large and the rest cut off, or vice versa
        if($width_new > $width){
            //cut point by height
            $h_point = (($height - $height_new) / 2);
            //copy image
            imagecopyresampled($dst_img, $src_img, 0, 0, 0, $h_point, $max_width, $max_height, $width, $height_new);
        }else{
            //cut point by width
            $w_point = (($width - $width_new) / 2);
            imagecopyresampled($dst_img, $src_img, 0, 0, $w_point, 0, $max_width, $max_height, $width_new, $height);
        }

        //$image($dst_img, $dst_dir, $quality);
        return $dst_img;

        /*if($dst_img)imagedestroy($dst_img);
        if($src_img)imagedestroy($src_img);*/
    }

	function set_logo($filename) {
		list($width, $height, $type) = getimagesize($filename);
		$this->_setType($type);
		$_image = "image".$this->pic_type;
		$_imagecreatefrom = "imagecreatefrom".$this->pic_type;
		$image = $_imagecreatefrom($filename);

		$logo_path='images/logo.png';
		$logo = imagecreatefrompng($logo_path);
		list($lwidth, $lheight, $ltype) = getimagesize($logo_path);

		$src_x = $width - ($lwidth + 5);
		$src_y = $height - ($lheight + 5);
		ImageCopy($image,$logo, $src_x,$src_y,0,0,$lwidth,$lheight);

		$_image($image, $filename);
		unset($image);
		unset($logo);
	}
}
?>