resizer.php

<?php
if(isset($_GET['file']) && !empty($_GET['file']))
{
	include_once 'components/pjImage.component.php';
	
	$image_path = $_GET['file'];
	
	if(file_exists($image_path))
	{
		$Image = new pjImage();
		
		$size = @getimagesize($image_path);
		$src_width = $size[0];
		$src_height = $size[1];
			
        $_GET['width'] = $_GET['width'] == 0 ? $src_width:$_GET['width'];
        $_GET['height'] = $_GET['height'] == 0 ? $src_height:$_GET['height'];   
            	
		if(isset($_GET['action']) && $_GET['action'] == 'resize')
		{
			if(isset($_GET['width']) && (int) $_GET['width'] > 0 && isset($_GET['height']) && (int) $_GET['height'] > 0)
			{
				$Image->loadImage($image_path);
				$resp = $Image->isConvertPossible();
				if ($resp['status'] === true)
				{
					$Image->resize($_GET['width'], $_GET['height']);
				}
			}
		}else if(isset($_GET['action']) && $_GET['action'] == 'crop'){
			
			if(isset($_GET['width']) && (int) $_GET['width'] > 0 & (int) $_GET['width'] < $src_width && isset($_GET['height']) && (int) $_GET['height'] > 0 && (int) $_GET['height'] < $src_height)
			{
				if(isset($_GET['crop_pos']) && !empty($_GET['crop_pos']))
				{
					$crop_position = $_GET['crop_pos'];
					$x = 0;
					$y = 0;
					$w = (int) $_GET['width'];
					$h  = (int) $_GET['height'];
					switch ($crop_position) {
						case 'center':
							$x = round($src_width / 2) - round((int) $_GET['width'] / 2);
							$y = round($src_height / 2) - round((int) $_GET['height'] / 2);
						;
						break;
						
						case 'top':
							$x = round($src_width / 2) - round((int) $_GET['width'] / 2);
						;
						break;
						case 'bottom':
							$x = round($src_width / 2) - round((int) $_GET['width'] / 2);
							$y = $src_height - (int) $_GET['height'];
						;
						break;
						case 'left':
							$y = round($src_height / 2) - round((int) $_GET['height'] / 2);
						;
						break;
						case 'right':
							$x = $src_width - (int) $_GET['width'];
							$y = round($src_height / 2) - round((int) $_GET['height'] / 2);
						;
						break;
					}
					$Image->loadImage($image_path);
					$Image->crop($x, $y, $w, $h, $w, $h);
				}
			}
		}
		if(isset($_GET['watermark']) && !empty($_GET['watermark']))
		{
			$watermarkPosition = isset($_GET['watermark_pos']) ? $_GET['watermark_pos'] : 'cc';
			
			if(isset($_GET['color']))
			{
				$color_arr = explode(",", $_GET['color']);
				$valid_color = true;
				if(count($color_arr) == 3)
				{
					if((int)$color_arr[0] < 0 || (int)$color_arr[0] > 255 || (int)$color_arr[1] < 0 || (int)$color_arr[1] > 255 || (int)$color_arr[2] < 0 || (int)$color_arr[2] > 255)
					{
						$valid_color = false;
					}
				}else{
					$valid_color = false;
				}
				if($valid_color == true)
				{
					$Image->setColor($color_arr);
				}
			}
			
			$Image->setFontSize(18)->setFont('fonts/arialbd.ttf');
			$Image->setWatermark($_GET['watermark'], $watermarkPosition);
		}
		$quality = 100;
		if(isset($_GET['quality']) && (int) $_GET['quality'] > 0 && (int) $_GET['quality'] <= 100)
		{
			$quality = $_GET['quality'];
		}
		
		$Image->output($quality);		
	}
}
?>