fixed resize bug that was comparing height to width instead of height to original height

1 files changed, 1526 insertions, 1526 deletions

diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 561c5c03a..28e1bfbbc 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1,1527 +1,1527 @@
-<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Code Igniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		Rick Ellis
- * @copyright	Copyright (c) 2006, pMachine, Inc.
- * @license		http://www.codeignitor.com/user_guide/license.html
- * @link		http://www.codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Image Manipulation class
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Image_lib
- * @author		Rick Ellis
- * @link		http://www.codeigniter.com/user_guide/libraries/image_lib.html
- */
-class CI_Image_lib {
-	
-	var $image_library		= 'gd2';  	// Can be:  imagemagick, netpbm, gd, gd2
-	var $library_path		= '';
-	var $dynamic_output		= FALSE;	// Whether to send to browser or write to disk
-	var $source_image		= '';	
-	var $new_image			= '';
-	var $width				= '';
-	var $height				= '';
-	var $quality			= '90';
-	var $create_thumb		= FALSE;
-	var $thumb_marker		= '_thumb';
-	var $maintain_ratio		= TRUE;  	// Whether to maintain aspect ratio when resizing or use hard values
-	var $master_dim			= 'auto';	// auto, height, or width.  Determines what to use as the master dimension
-	var $rotation_angle		= '';
-	var $x_axis				= '';
-	var	$y_axis				= '';
-	
-	// Watermark Vars
-	var $wm_text			= '';			// Watermark text if graphic is not used
-	var $wm_type			= 'text';		// Type of watermarking.  Options:  text/overlay
-	var $wm_x_transp		= 4;
-	var $wm_y_transp		= 4;
-	var $wm_overlay_path	= '';			// Watermark image path
-	var $wm_font_path		= '';			// TT font
-	var $wm_font_size		= 17;			// Font size (different versions of GD will either use points or pixels)
-	var $wm_vrt_alignment	= 'B';			// Vertical alignment:   T M B
-	var $wm_hor_alignment	= 'C';			// Horizontal alignment: L R C
-	var $wm_padding			= 0;			// Padding around text
-	var $wm_hor_offset		= 0;			// Lets you push text to the right
-	var $wm_vrt_offset		= 0;			 // Lets you push  text down
-	var $wm_font_color		= '#ffffff';	// Text color
-	var $wm_shadow_color	= '';			// Dropshadow color
-	var $wm_shadow_distance	= 2;			// Dropshadow distance
-	var $wm_opacity			= 50; 			// Image opacity: 1 - 100  Only works with image
-	
-	// Private Vars
-	var $source_folder		= '';
-	var $dest_folder		= '';
-	var $mime_type			= '';
-	var $orig_width			= '';
-	var $orig_height		= '';
-	var $image_type			= '';
-	var $size_str			= '';
-	var $full_src_path		= '';
-	var $full_dst_path		= '';
-	var $create_fnc			= 'imagecreatetruecolor';
-	var $copy_fnc			= 'imagecopyresampled';
-	var $error_msg			= array();
-	var $wm_use_drop_shadow	= FALSE;
-	var $wm_use_truetype	= FALSE;		
-	
-	/**
-	 * Constructor
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	void
-	 */	
-	function CI_Image_lib($props = array())
-	{
-		if (count($props) > 0)
-		{
-			$this->initialize($props);
-		}
-		
-		log_message('debug', "Image Lib Class Initialized");
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Initialize image properties
-	 *
-	 * Resets values in case this class is used in a loop
-	 *
-	 * @access	public
-	 * @return	void
-	 */	
-	function clear()
-	{
-		$props = array('source_folder', 'dest_folder', 'source_image', 'full_src_path', 'full_dst_path', 'new_image', 'image_type', 'size_str', 'quality', 'orig_width', 'orig_height', 'rotation_angle', 'x_axis', 'y_axis', 'create_fnc', 'copy_fnc', 'wm_overlay_path', 'wm_use_truetype', 'dynamic_output', 'wm_font_size', 'wm_text', 'wm_vrt_alignment', 'wm_hor_alignment', 'wm_padding', 'wm_hor_offset', 'wm_vrt_offset', 'wm_font_color', 'wm_use_drop_shadow', 'wm_shadow_color', 'wm_shadow_distance', 'wm_opacity');
-	
-		foreach ($props as $val)
-		{
-			$this->$val = '';
-		}  		
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * initialize image preferences
-	 *
-	 * @access	public
-	 * @param	array
-	 * @return	void
-	 */	
-	function initialize($props = array())
-	{
-		/*
-		 * Convert array elements into class variables
-		 */
-		if (count($props) > 0)
-		{
-			foreach ($props as $key => $val)
-			{
-				$this->$key = $val;
-			}
-		}
-
-		/*
-		 * Is there a source image?
-		 *
-		 * If not, there's no reason to continue
-		 *
-		 */
-		if ($this->source_image == '')
-		{
-			$this->set_error('imglib_source_image_required');
-			return FALSE;	   	
-		}
-		
-		/*
-		 * Is getimagesize() Available?
-		 *
-		 * We use it to determine the image properties (width/height).
-		 * Note:  We need to figure out how to determine image
-		 * properties using ImageMagick and NetPBM
-		 *
-		 */		
-		if ( ! function_exists('getimagesize'))
-		{
-			$this->set_error('imglib_gd_required_for_props');
-			return FALSE;		
-		}
-		
-		$this->image_library = strtolower($this->image_library);
-		
-		/*
-		 * Set the full server path
-		 *
-		 * The source image may or may not contain a path.
-		 * Either way, we'll try use realpath to generate the
-		 * full server path in order to more reliably read it.
-		 *
-		 */	
-		if (function_exists('realpath') AND @realpath($this->source_image) !== FALSE)
-		{
-			$full_source_path = str_replace("\\", "/", realpath($this->source_image));
-		}
-		else
-		{
-			$full_source_path = $this->source_image;
-		}
-		
-		$x = explode('/', $full_source_path);
-		$this->source_image = end($x);
-		$this->source_folder = str_replace($this->source_image, '', $full_source_path);
-								
-		// Set the Image Properties
-		if ( ! $this->get_image_properties($this->source_folder.$this->source_image))
-		{
-			return FALSE;	   	
-		}				
-
-		/*
-		 * Assign the "new" image name/path
-		 *
-		 * If the user has set a "new_image" name it means
-		 * we are making a copy of the source image. If not
-		 * it means we are altering the original.  We'll
-		 * set the destination filename and path accordingly.
-		 *
-		 */			
-		if ($this->new_image == '')
-		{
-			$this->dest_image = $this->source_image;
-			$this->dest_folder = $this->source_folder;
-		}
-		else
-		{
-			if (strpos($this->new_image, '/') === FALSE)
-			{
-				$this->dest_folder = $this->source_folder;
-				$this->dest_image = $this->new_image;
-			}
-			else
-			{
-				if (function_exists('realpath') AND @realpath($this->new_image) !== FALSE)
-				{
-					$full_dest_path = str_replace("\\", "/", realpath($this->new_image));
-				}
-				else
-				{
-					$full_dest_path = $this->new_image;
-				}
-				
-				// Is there a file name?
-				if ( ! preg_match("#[\.jpg|\.jpeg|\.gif|\.png]$#i", $full_dest_path))
-				{
-					$this->dest_folder = $full_dest_path.'/';
-					$this->dest_image = $this->source_image;
-				}
-				else
-				{
-					$x = explode('/', $full_dest_path);
-					$this->dest_image = end($x);
-					$this->dest_folder = str_replace($this->dest_image, '', $full_dest_path);
-				}
-			}
-		}
-
-		/*
-		 * Compile the finalized filenames/paths
-		 *
-		 * We'll create two master strings containing the
-		 * full server path to the source image and the
-		 * full server path to the destination image.
-		 * We'll also split the destination image name
-		 * so we can insert the thumbnail marker if needed.
-		 *
-		 */	
-		if ($this->create_thumb === FALSE OR $this->thumb_marker == '')
-		{
-			$this->thumb_marker = '';
-		}
-
-		$xp	= $this->explode_name($this->dest_image);
-	
-		$filename = $xp['name'];
-		$file_ext = $xp['ext'];
-				
-		$this->full_src_path = $this->source_folder.$this->source_image;		
-		$this->full_dst_path = $this->dest_folder.$filename.$this->thumb_marker.$file_ext;
-
-		/*
-		 * Should we maintain image proportions?
-		 *
-		 * When creating thumbs or copies, the target width/height
-		 * might not be in correct proportion with the source
-		 * image's width/height.  We'll recalculate it here.
-		 *
-		 */	
-		if ($this->maintain_ratio === TRUE && ($this->width != '' AND $this->height != ''))
-		{
-			$this->image_reproportion();
-		}
-
-		/*
-		 * Was a width and height specified?
-		 *
-		 * If the destination width/height was
-		 * not submitted we will use the values
-		 * from the actual file
-		 *
-		 */	
-		if ($this->width == '')
-			$this->width = $this->orig_width;
-	
-		if ($this->height == '')
-			$this->height = $this->orig_height;
-	
-		// Set the quality
-		$this->quality = trim(str_replace("%", "", $this->quality));
-		
-		if ($this->quality == '' OR $this->quality == 0 OR ! is_numeric($this->quality))
-			$this->quality = 90;
-	
-		// Set the x/y coordinates
-		$this->x_axis = ($this->x_axis == '' OR ! is_numeric($this->x_axis)) ? 0 : $this->x_axis;
-		$this->y_axis = ($this->y_axis == '' OR ! is_numeric($this->y_axis)) ? 0 : $this->y_axis;
-	
-		// Watermark-related Stuff...
-		if ($this->wm_font_color != '')
-		{
-			if (strlen($this->wm_font_color) == 6)
-			{
-				$this->wm_font_color = '#'.$this->wm_font_color;
-			}
-		}
-		
-		if ($this->wm_shadow_color != '')
-		{
-			if (strlen($this->wm_shadow_color) == 6)
-			{
-				$this->wm_shadow_color = '#'.$this->wm_shadow_color;
-			}
-		}
-	
-		if ($this->wm_overlay_path != '')
-		{
-			$this->wm_overlay_path = str_replace("\\", "/", realpath($this->wm_overlay_path));
-		}
-	
-		if ($this->wm_shadow_color != '')
-		{
-			$this->wm_use_drop_shadow = TRUE;
-		}
-
-		if ($this->wm_font_path != '')
-		{
-			$this->wm_use_truetype = TRUE;
-		}
-
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Resize
-	 *
-	 * This is a wrapper function that chooses the proper
-	 * resize function based on the protocol specified
-	 *
-	 * @access	public
-	 * @return	bool
-	 */	
-	function resize()
-	{
-		$protocol = 'image_process_'.$this->image_library;
-		
-		if (eregi("gd2$", $protocol))
-		{
-			$protocol = 'image_process_gd';
-		}
-		
-		return $this->$protocol('resize');
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Crop
-	 *
-	 * This is a wrapper function that chooses the proper
-	 * cropping function based on the protocol specified
-	 *
-	 * @access	public
-	 * @return	bool
-	 */	
-	function crop()
-	{
-		$protocol = 'image_process_'.$this->image_library;
-		
-		if (eregi("gd2$", $protocol))
-		{
-			$protocol = 'image_process_gd';
-		}
-		
-		return $this->$protocol('crop');
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Rotate
-	 *
-	 * This is a wrapper function that chooses the proper
-	 * rotation function based on the protocol specified
-	 *
-	 * @access	public
-	 * @return	bool
-	 */	
-	function rotate()
-	{
-		// Allowed rotation values		
-		$degs = array(90, 180, 270, 'vrt', 'hor');	
-	
-		if ($this->rotation_angle == '' OR ! in_array($this->rotation_angle, $degs, TRUE))
-		{
-			$this->set_error('imglib_rotation_angle_required');
-			return FALSE;	   	
-		}
-	
-		// Reassign the width and height
-		if ($this->rotation_angle == 90 OR $this->rotation_angle == 270)
-		{
-			$this->width	= $this->orig_height;
-			$this->height	= $this->orig_width;
-		}
-		else
-		{
-			$this->width	= $this->orig_width;
-			$this->height	= $this->orig_height;
-		}
-	
-
-		// Choose resizing function
-		if ($this->image_library == 'imagemagick' OR $this->image_library == 'netpbm')
-		{
-			$protocol = 'image_process_'.$this->image_library;
-		
-			return $this->$protocol('rotate');
-		}
-		
-		if ($this->rotation_angle == 'hor' OR $this->rotation_angle == 'vrt')
-		{
-			return $this->image_mirror_gd();
-		}
-		else
-		{		
-			return $this->image_rotate_gd();
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Process Using GD/GD2
-	 *
-	 * This function will resize or crop
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */		
-	function image_process_gd($action = 'resize')
-	{	
-		$v2_override = FALSE;
-			
-		if ($action == 'crop')
-		{
-			// If the target width/height match the source then it's pointless to crop, right?
-			if ($this->width >= $this->orig_width AND $this->height >= $this->orig_width)
-			{
-				// We'll return true so the user thinks the process succeeded.
-				// It'll be our little secret...
-	
-				return TRUE;
-			}
-			
-			//  Reassign the source width/height if cropping
-			$this->orig_width  = $this->width;
-			$this->orig_height = $this->height;	
-				
-			// GD 2.0 has a cropping bug so we'll test for it
-			if ($this->gd_version() !== FALSE)
-			{
-				$gd_version = str_replace('0', '', $this->gd_version());			
-				$v2_override = ($gd_version == 2) ? TRUE : FALSE;
-			}
-		}
-		else
-		{
-			// If the target width/height match the source, AND if
-			// the new file name is not equal to the old file name
-			// we'll simply make a copy of the original with the new name		
-			if (($this->orig_width == $this->width AND $this->orig_height == $this->height) AND ($this->source_image != $this->dest_image))
-			{
-				if ( ! @copy($this->full_src_path, $this->full_dst_path))
-				{
-					$this->set_error('imglib_copy_failed');
-					return FALSE;
-				}
-			
-				@chmod($this->full_dst_path, 0777);
-				return TRUE;
-			}
-			
-			// If resizing the x/y axis must be zero
-			$this->x_axis = 0;
-			$this->y_axis = 0;
-		}
-		
-		//  Create the image handle
-		if ( ! ($src_img = $this->image_create_gd()))
-		{		
-			return FALSE;
-		}
-
-		//  Create The Image
-		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
-		{
-			$create	= 'imagecreatetruecolor';
-			$copy	= 'imagecopyresampled';
-		}
-		else
-		{
-			$create	= 'imagecreate';	
-			$copy	= 'imagecopyresized';
-		}
-			
-		$dst_img = $create($this->width, $this->height);
-		$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);
-
-		//  Show the image	
-		if ($this->dynamic_output == TRUE)
-		{
-			$this->image_display_gd($dst_img);
-		}
-		else
-		{
-			// Or save it
-			if ( ! $this->image_save_gd($dst_img))
-			{
-				return FALSE;
-			}
-		}
-
-		//  Kill the file handles
-		imagedestroy($dst_img);
-		imagedestroy($src_img);
-		
-		// Set the file to 777
-		@chmod($this->full_dst_path, 0777);
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Process Using ImageMagick
-	 *
-	 * This function will resize, crop or rotate
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */		
-	function image_process_imagemagick($action = 'resize')
-	{
-		//  Do we have a vaild library path?
-		if ($this->library_path == '')
-		{
-			$this->set_error('imglib_libpath_invalid');
-			return FALSE;
-		}
-				
-		if ( ! eregi("convert$", $this->library_path))
-		{
-			if ( ! eregi("/$", $this->library_path)) $this->library_path .= "/";
-		
-			$this->library_path .= 'convert';
-		}
-		
-		// Execute the command
-		$cmd = $this->library_path." -quality ".$this->quality;
-	
-		if ($action == 'crop')
-		{
-			$cmd .= " -crop ".$this->width."x".$this->height."+".$this->x_axis."+".$this->y_axis." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
-		}
-		elseif ($action == 'rotate')
-		{
-			switch ($this->rotation_angle)
-			{
-				case 'hor' 	: $angle = '-flop';
-					break;
-				case 'vrt' 	: $angle = '-flip';
-					break;
-				default		: $angle = '-rotate '.$this->rotation_angle;
-					break;
-			}			
-		
-			$cmd .= " ".$angle." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
-		}
-		else  // Resize
-		{
-			$cmd .= " -resize ".$this->width."x".$this->height." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
-		}
-	
-		$retval = 1;
-	
-		@exec($cmd, $output, $retval);
-
-		//	Did it work?	
-		if ($retval > 0)
-		{
-			$this->set_error('imglib_image_process_failed');
-			return FALSE;
-		}
-		
-		// Set the file to 777
-		@chmod($this->full_dst_path, 0777);
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Process Using NetPBM
-	 *
-	 * This function will resize, crop or rotate
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */		
-	function image_process_netpbm($action = 'resize')
-	{
-		if ($this->library_path == '')
-		{
-			$this->set_error('imglib_libpath_invalid');
-			return FALSE;
-		}
-			
-		//  Build the resizing command
-		switch ($this->image_type)
-		{
-			case 1 :
-						$cmd_in		= 'giftopnm';
-						$cmd_out	= 'ppmtogif';
-				break;
-			case 2 :
-						$cmd_in		= 'jpegtopnm';
-						$cmd_out	= 'ppmtojpeg';			
-				break;
-			case 3 :
-						$cmd_in		= 'pngtopnm';
-						$cmd_out	= 'ppmtopng';
-				break;
-		}
-		
-		if ($action == 'crop')
-		{
-			$cmd_inner = 'pnmcut -left '.$this->x_axis.' -top '.$this->y_axis.' -width '.$this->width.' -height '.$this->height;
-		}
-		elseif ($action == 'rotate')
-		{
-			switch ($this->rotation_angle)
-			{
-				case 90		:	$angle = 'r270';
-					break;
-				case 180	:	$angle = 'r180';
-					break;
-				case 270 	:	$angle = 'r90';
-					break;
-				case 'vrt'	:	$angle = 'tb';
-					break;
-				case 'hor'	:	$angle = 'lr';
-					break;
-			}
-		
-			$cmd_inner = 'pnmflip -'.$angle.' ';
-		}
-		else // Resize
-		{
-			$cmd_inner = 'pnmscale -xysize '.$this->width.' '.$this->height;
-		}
-						
-		$cmd = $this->library_path.$cmd_in.' '.$this->full_src_path.' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';
-		
-		$retval = 1;
-		
-		@exec($cmd, $output, $retval);
-		
-		//  Did it work?
-		if ($retval > 0)
-		{
-			$this->set_error('imglib_image_process_failed');
-			return FALSE;
-		}
-		
-		// With NetPBM we have to create a temporary image.
-		// If you try manipulating the original it fails so
-		// we have to rename the temp file.
-		copy ($this->dest_folder.'netpbm.tmp', $this->full_dst_path);
-		unlink ($this->dest_folder.'netpbm.tmp');
-		@chmod($dst_image, 0777);
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Rotate Using GD
-	 *
-	 * @access	public
-	 * @return	bool
-	 */		
-	function image_rotate_gd()
-	{	
-		// Is Image Rotation Supported?
-		// this function is only supported as of PHP 4.3
-		if ( ! function_exists('imagerotate'))
-		{
-			$this->set_error('imglib_rotate_unsupported');
-			return FALSE;
-		}
-		
-		//  Create the image handle
-		if ( ! ($src_img = $this->image_create_gd()))
-		{		
-			return FALSE;
-		}
-
-		// Set the background color		
-		// This won't work with transparent PNG files so we are
-		// going to have to figure out how to determine the color
-		// of the alpha channel in a future release.
-	
-		$white	= imagecolorallocate($src_img, 255, 255, 255);
-
-		//  Rotate it!
-		$dst_img = imagerotate($src_img, $this->rotation_angle, $white);
-	
-		//  Save the Image
-		if ($this->dynamic_output == TRUE)
-		{
-			$this->image_display_gd($dst_img);
-		}
-		else
-		{
-			// Or save it
-			if ( ! $this->image_save_gd($dst_img))
-			{
-				return FALSE;
-			}
-		}
-
-		//  Kill the file handles
-		imagedestroy($dst_img);
-		imagedestroy($src_img);
-		
-		// Set the file to 777
-		
-		@chmod($this->full_dst_path, 0777);
-		
-		return true;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Create Mirror Image using GD
-	 *
-	 * This function will flip horizontal or vertical
-	 *
-	 * @access	public
-	 * @return	bool
-	 */			
-	function image_mirror_gd()
-	{		
-		if ( ! $src_img = $this->image_create_gd())
-		{
-			return FALSE;
-		}
-		
-		$width  = $this->orig_width;
-		$height = $this->orig_height;
-	
-		if ($this->rotation_angle == 'hor')
-		{
-			for ($i = 0; $i < $height; $i++)
-			{
-				$left  = 0;
-				$right = $width-1;
-	
-				while ($left < $right)
-				{
-					$cl = imagecolorat($src_img, $left, $i);
-					$cr = imagecolorat($src_img, $right, $i);
-					
-					imagesetpixel($src_img, $left, $i, $cr);
-					imagesetpixel($src_img, $right, $i, $cl);
-					
-					$left++;
-					$right--;
-				}
-			}
-		}
-		else
-		{
-			for ($i = 0; $i < $width; $i++)
-			{
-				$top = 0;
-				$bot = $height-1;
-	
-				while ($top < $bot)
-				{
-					$ct = imagecolorat($src_img, $i, $top);
-					$cb = imagecolorat($src_img, $i, $bot);
-					
-					imagesetpixel($src_img, $i, $top, $cb);
-					imagesetpixel($src_img, $i, $bot, $ct);
-					
-					$top++;
-					$bot--;
-				}
-			}		
-		}		
-
-		//  Show the image
-		if ($this->dynamic_output == TRUE)
-		{
-			$this->image_display_gd($src_img);
-		}
-		else
-		{
-			// Or save it
-			if ( ! $this->image_save_gd($src_img))
-			{
-				return FALSE;
-			}
-		}
-		
-		//  Kill the file handles
-		imagedestroy($src_img);
-		
-		// Set the file to 777
-		@chmod($this->full_dst_path, 0777);
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Image Watermark
-	 *
-	 * This is a wrapper function that chooses the type
-	 * of watermarking based on the specified preference.
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function watermark()
-	{
-		if ($this->wm_type == 'overlay')
-		{
-			return $this->overlay_watermark();
-		}
-		else
-		{
-			return $this->text_watermark();
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Watermark - Graphic Version
-	 *
-	 * @access	public
-	 * @return	bool
-	 */			
-	function overlay_watermark()
-	{
-		if ( ! function_exists('imagecolortransparent'))
-		{
-			$this->set_error('imglib_gd_required');
-			return FALSE;		
-		}
-	
-		//  Fetch source image properties
-		$this->get_image_properties();
-
-		//  Fetch watermark image properties
-		$props 			= $this->get_image_properties($this->wm_overlay_path, TRUE);	
-		$wm_img_type	= $props['image_type'];
-		$wm_width		= $props['width'];
-		$wm_height		= $props['height'];
-	
-		//  Create two image resources	
-		$wm_img  = $this->image_create_gd($this->wm_overlay_path, $wm_img_type);
-		$src_img = $this->image_create_gd($this->full_src_path);
-		
-		// Reverse the offset if necessary		
-		// When the image is positioned at the bottom
-		// we don't want the vertical offset to push it
-		// further down.  We want the reverse, so we'll
-		// invert the offset.  Same with the horizontal
-		// offset when the image is at the right
-		
-		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));
-		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));
-	
-		if ($this->wm_vrt_alignment == 'B')
-			$this->wm_vrt_offset = $this->wm_vrt_offset * -1;
-	
-		if ($this->wm_hor_alignment == 'R')
-			$this->wm_hor_offset = $this->wm_hor_offset * -1;
-
-		//  Set the base x and y axis values
-		$x_axis = $this->wm_hor_offset + $this->wm_padding;
-		$y_axis = $this->wm_vrt_offset + $this->wm_padding;
-
-		//  Set the vertical position
-		switch ($this->wm_vrt_alignment)
-		{
-			case 'T':
-				break;
-			case 'M':	$y_axis += ($this->orig_height / 2) - ($wm_height / 2);
-				break;
-			case 'B':	$y_axis += $this->orig_height - $wm_height;
-				break;
-		}
-
-		//  Set the horizontal position
-		switch ($this->wm_hor_alignment)
-		{
-			case 'L':
-				break;	
-			case 'C':	$x_axis += ($this->orig_width / 2) - ($wm_width / 2);
-				break;
-			case 'R':	$x_axis += $this->orig_width - $wm_width;
-				break;
-		}
-	
-		//  Build the finalized image			
-		if ($wm_img_type == 3 AND function_exists('imagealphablending'))
-		{
-			@imagealphablending($src_img, TRUE);
-		} 		
-
-		// Set RGB values for text and shadow		
-		imagecolortransparent($wm_img, imagecolorat($wm_img, $this->wm_x_transp, $this->wm_y_transp));
-		imagecopymerge($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height, $this->wm_opacity);
-				
-		//  Output the image
-		if ($this->dynamic_output == TRUE)
-		{
-			$this->image_display_gd($src_img);
-		}
-		else
-		{
-			if ( ! $this->image_save_gd($src_img))
-			{
-				return FALSE;
-			}
-		}
-		
-		imagedestroy($src_img);
-		imagedestroy($wm_img);
-				
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Watermark - Text Version
-	 *
-	 * @access	public
-	 * @return	bool
-	 */			
-	function text_watermark()
-	{
-		if ( ! ($src_img = $this->image_create_gd()))
-		{		
-			return FALSE;
-		}
-				
-		if ($this->wm_use_truetype == TRUE AND ! file_exists($this->wm_font_path))
-		{
-			$this->set_error('imglib_missing_font');
-			return FALSE;
-		}
-		
-		//  Fetch source image properties		
-		$this->get_image_properties();				
-		
-		// Set RGB values for text and shadow		
-		$this->wm_font_color	= str_replace('#', '', $this->wm_font_color);
-		$this->wm_shadow_color	= str_replace('#', '', $this->wm_shadow_color);
-		
-		$R1 = hexdec(substr($this->wm_font_color, 0, 2));
-		$G1 = hexdec(substr($this->wm_font_color, 2, 2));
-		$B1 = hexdec(substr($this->wm_font_color, 4, 2));
-	
-		$R2 = hexdec(substr($this->wm_shadow_color, 0, 2));
-		$G2 = hexdec(substr($this->wm_shadow_color, 2, 2));
-		$B2 = hexdec(substr($this->wm_shadow_color, 4, 2));
-		
-		$txt_color	= imagecolorclosest($src_img, $R1, $G1, $B1);
-		$drp_color	= imagecolorclosest($src_img, $R2, $G2, $B2);
-
-		// Reverse the vertical offset
-		// When the image is positioned at the bottom
-		// we don't want the vertical offset to push it
-		// further down.  We want the reverse, so we'll
-		// invert the offset.  Note: The horizontal
-		// offset flips itself automatically
-	
-		if ($this->wm_vrt_alignment == 'B')
-			$this->wm_vrt_offset = $this->wm_vrt_offset * -1;
-			
-		if ($this->wm_hor_alignment == 'R')
-			$this->wm_hor_offset = $this->wm_hor_offset * -1;
-
-		// Set font width and height
-		// These are calculated differently depending on
-		// whether we are using the true type font or not
-		if ($this->wm_use_truetype == TRUE)
-		{
-			if ($this->wm_font_size == '')
-				$this->wm_font_size = '17';
-		
-			$fontwidth  = $this->wm_font_size-($this->wm_font_size/4);
-			$fontheight = $this->wm_font_size;
-			$this->wm_vrt_offset += $this->wm_font_size;
-		}
-		else
-		{
-			$fontwidth  = imagefontwidth($this->wm_font_size);
-			$fontheight = imagefontheight($this->wm_font_size);
-		}
-
-		// Set base X and Y axis values
-		$x_axis = $this->wm_hor_offset + $this->wm_padding;
-		$y_axis = $this->wm_vrt_offset + $this->wm_padding;
-
-		// Set verticle alignment
-		if ($this->wm_use_drop_shadow == FALSE)
-			$this->wm_shadow_distance = 0;
-			
-		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));
-		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));
-	
-		switch ($this->wm_vrt_alignment)
-		{
-			case	 "T" :
-				break;
-			case "M":	$y_axis += ($this->orig_height/2)+($fontheight/2);
-				break;
-			case "B":	$y_axis += ($this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight/2));
-				break;
-		}
-	
-		$x_shad = $x_axis + $this->wm_shadow_distance;
-		$y_shad = $y_axis + $this->wm_shadow_distance;
-		
-		// Set horizontal alignment
-		switch ($this->wm_hor_alignment)
-		{
-			case "L":
-				break;
-			case "R":
-						if ($this->wm_use_drop_shadow)
-							$x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));
-							$x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));
-				break;
-			case "C":
-						if ($this->wm_use_drop_shadow)
-							$x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
-							$x_axis += floor(($this->orig_width  -$fontwidth*strlen($this->wm_text))/2);
-				break;
-		}
-		
-		//  Add the text to the source image
-		if ($this->wm_use_truetype)
-		{	
-			if ($this->wm_use_drop_shadow)
-				imagettftext($src_img, $this->wm_font_size, 0, $x_shad, $y_shad, $drp_color, $this->wm_font_path, $this->wm_text);
-				imagettftext($src_img, $this->wm_font_size, 0, $x_axis, $y_axis, $txt_color, $this->wm_font_path, $this->wm_text);
-		}
-		else
-		{
-			if ($this->wm_use_drop_shadow)
-				imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color);
-				imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color);
-		}
-	
-		//  Output the final image
-		if ($this->dynamic_output == TRUE)
-		{
-			$this->image_display_gd($src_img);
-		}
-		else
-		{
-			$this->image_save_gd($src_img);
-		}
-		
-		imagedestroy($src_img);
-	
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Create Image - GD
-	 *
-	 * This simply creates an image resource handle
-	 * based on the type of image being processed
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	resource
-	 */			
-	function image_create_gd($path = '', $image_type = '')
-	{
-		if ($path == '')
-			$path = $this->full_src_path;
-			
-		if ($image_type == '')
-			$image_type = $this->image_type;
-	
-		
-		switch ($image_type)
-		{
-			case	 1 :
-						if ( ! function_exists('imagecreatefromgif'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));
-							return FALSE;
-						}
-					
-						return imagecreatefromgif($path);
-				break;
-			case 2 :
-						if ( ! function_exists('imagecreatefromjpeg'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));
-							return FALSE;
-						}
-					
-						return imagecreatefromjpeg($path);
-				break;
-			case 3 :
-						if ( ! function_exists('imagecreatefrompng'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));				
-							return FALSE;
-						}
-					
-						return imagecreatefrompng($path);
-				break;			
-		
-		}
-		
-		$this->set_error(array('imglib_unsupported_imagecreate'));
-		return FALSE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Write image file to disk - GD
-	 *
-	 * Takes an image resource as input and writes the file
-	 * to the specified destination
-	 *
-	 * @access	public
-	 * @param	resource
-	 * @return	bool
-	 */			
-	function image_save_gd($resource)
-	{	
-		switch ($this->image_type)
-		{
-			case 1 :
-						if ( ! function_exists('imagegif'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));
-							return FALSE;		
-						}
-						
-						@imagegif($resource, $this->full_dst_path);
-				break;
-			case 2	:
-						if ( ! function_exists('imagejpeg'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));
-							return FALSE;		
-						}
-						
-						if (phpversion() == '4.4.1')
-						{
-							@touch($this->full_dst_path); // PHP 4.4.1 bug #35060 - workaround
-						}
-						
-						@imagejpeg($resource, $this->full_dst_path, $this->quality);
-				break;
-			case 3	:
-						if ( ! function_exists('imagepng'))
-						{
-							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));
-							return FALSE;		
-						}
-					
-						@imagepng($resource, $this->full_dst_path);
-				break;
-			default		:
-							$this->set_error(array('imglib_unsupported_imagecreate'));
-							return FALSE;		
-				break;		
-		}
-	
-		return TRUE;
-	}	
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Dynamically outputs an image
-	 *
-	 * @access	public
-	 * @param	resource
-	 * @return	void
-	 */			
-	function image_display_gd($resource)
-	{		
-		header("Content-Disposition: filename={$this->source_image};");
-		header("Content-Type: {$this->mime_type}");
-		header('Content-Transfer-Encoding: binary');
-		header('Last-Modified: '.gmdate('D, d M Y H:i:s', time()).' GMT');
-	
-		switch ($this->image_type)
-		{
-			case 1 		:	imagegif($resource);
-				break;
-			case 2		:	imagejpeg($resource, '', $this->quality);
-				break;
-			case 3		:	imagepng($resource);
-				break;
-			default		:	echo 'Unable to display the image';
-				break;		
-		}			
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Re-proportion Image Width/Height
-	 *
-	 * When creating thumbs, the desired width/height
-	 * can end up warping the image due to an incorrect
-	 * ratio between the full-sized image and the thumb.
-	 *
-	 * This function lets us re-proportion the width/height
-	 * if users choose to maintain the aspect ratio when resizing.
-	 *
-	 * @access	public
-	 * @return	void
-	 */			
-	function image_reproportion()
-	{
-		if ( ! is_numeric($this->width) OR ! is_numeric($this->height) OR $this->width == 0 OR $this->height == 0)
-			return;
-		
-		if ( ! is_numeric($this->orig_width) OR ! is_numeric($this->orig_height) OR $this->orig_width == 0 OR $this->orig_height == 0)
-			return;
-		
-		$new_width	= ceil($this->orig_width*$this->height/$this->orig_height);		
-		$new_height	= ceil($this->width*$this->orig_height/$this->orig_width);
-		
-		$ratio = (($this->orig_height/$this->orig_width) - ($this->height/$this->width));
-	
-		if ($this->master_dim != 'width' AND $this->master_dim != 'height')
-		{
-			$this->master_dim = ($ratio < 0) ? 'width' : 'height';
-		}
-		
-		if (($this->width != $new_width) AND ($this->height != $new_height))
-		{
-			if ($this->master_dim == 'height')
-			{
-				$this->width = $new_width;
-			}
-			else
-			{
-				$this->height = $new_height;
-			}
-		}
-	}	
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Get image properties
-	 *
-	 * A helper function that gets info about the file
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	mixed
-	 */			
-	function get_image_properties($path = '', $return = FALSE)
-	{
-		// For now we require GD but we should
-		// find a way to determine this using IM or NetPBM
-		
-		if ($path == '')
-			$path = $this->full_src_path;
-				
-		if ( ! file_exists($path))
-		{
-			$this->set_error('imglib_invalid_path');		
-			return FALSE;				
-		}
-		
-		$vals = @getimagesize($path);
-		
-		$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
-		
-		$mime = (isset($types[$vals['2']])) ? 'image/'.$types[$vals['2']] : 'image/jpg';
-				
-		if ($return == TRUE)
-		{
-			$v['width']			= $vals['0'];
-			$v['height']		= $vals['1'];
-			$v['image_type']	= $vals['2'];
-			$v['size_str']		= $vals['3'];
-			$v['mime_type']		= $mime;
-			
-			return $v;
-		}
-		
-		$this->orig_width	= $vals['0'];
-		$this->orig_height	= $vals['1'];
-		$this->image_type	= $vals['2'];
-		$this->size_str		= $vals['3'];
-		$this->mime_type	= $mime;
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Size calculator
-	 *
-	 * This function takes a known width x height and
-	 * recalculates it to a new size.  Only one
-	 * new variable needs to be known
-	 *
-	 *	$props = array(
-	 *					'width' 		=> $width,
-	 *					'height' 		=> $height,
-	 *					'new_width'		=> 40,
-	 *					'new_height'	=> ''
-	 *				  );
-	 *
-	 * @access	public
-	 * @param	array
-	 * @return	array
-	 */			
-	function size_calculator($vals)
-	{
-		if ( ! is_array($vals))
-			return;
-			
-		$allowed = array('new_width', 'new_height', 'width', 'height');
-	
-		foreach ($allowed as $item)
-		{
-			if ( ! isset($vals[$item]) OR $vals[$item] == '')
-				$vals[$item] = 0;
-		}
-		
-		if ($vals['width'] == 0 OR $vals['height'] == 0)
-		{
-			return $vals;
-		}
-			
-		if ($vals['new_width'] == 0)
-		{
-			$vals['new_width'] = ceil($vals['width']*$vals['new_height']/$vals['height']);
-		}
-		elseif ($vals['new_height'] == 0)
-		{
-			$vals['new_height'] = ceil($vals['new_width']*$vals['height']/$vals['width']);
-		}
-	
-		return $vals;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Explode source_image
-	 *
-	 * This is a helper function that extracts the extension
-	 * from the source_image.  This function lets us deal with
-	 * source_images with multiple periods, like:  my.cool.jpg
-	 * It returns an associative array with two elements:
-	 * $array['ext']  = '.jpg';
-	 * $array['name'] = 'my.cool';
-	 *
-	 * @access	public
-	 * @param	array
-	 * @return	array
-	 */	
-	function explode_name($source_image)
-	{
-		$x = explode('.', $source_image);
-		$ret['ext'] = '.'.end($x);
-		
-		$name = '';
-		
-		$ct = count($x)-1;
-		
-		for ($i = 0; $i < $ct; $i++)
-		{
-			$name .= $x[$i];
-			
-			if ($i < ($ct - 1))
-			{
-				$name .= '.';
-			}
-		}
-		
-		$ret['name'] = $name;
-		
-		return $ret;
-	}	
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Is GD Installed?
-	 *
-	 * @access	public
-	 * @return	bool
-	 */	
-	function gd_loaded()
-	{
-		if ( ! extension_loaded('gd'))
-		{
-			if ( ! dl('gd.so'))
-			{
-				return FALSE;
-			}
-		}
-		
-		return TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Get GD version
-	 *
-	 * @access	public
-	 * @return	mixed
-	 */	
-	function gd_version()
-	{
-		if (function_exists('gd_info'))
-		{
-			$gd_version = @gd_info();
-			$gd_version = preg_replace("/\D/", "", $gd_version['GD Version']);
-			
-			return $gd_version;
-		}
-		
-		return FALSE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set error message
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	void
-	 */	
-	function set_error($msg)
-	{
-		$CI =& get_instance();
-		$CI->lang->load('imglib');
-		
-		if (is_array($msg))
-		{
-			foreach ($msg as $val)
-			{
-				
-				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
-				$this->error_msg[] = $msg;
-				log_message('error', $msg);
-			}		
-		}
-		else
-		{
-			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);
-			$this->error_msg[] = $msg;
-			log_message('error', $msg);
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Show error messages
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */	
-	function display_errors($open = '<p>', $close = '</p>')
-	{	
-		$str = '';
-		foreach ($this->error_msg as $val)
-		{
-			$str .= $open.$val.$close;
-		}
-	
-		return $str;
-	}
-
-}
-// END Image_lib Class
+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');

+/**

+ * Code Igniter

+ *

+ * An open source application development framework for PHP 4.3.2 or newer

+ *

+ * @package		CodeIgniter

+ * @author		Rick Ellis

+ * @copyright	Copyright (c) 2006, pMachine, Inc.

+ * @license		http://www.codeignitor.com/user_guide/license.html

+ * @link		http://www.codeigniter.com

+ * @since		Version 1.0

+ * @filesource

+ */

+

+// ------------------------------------------------------------------------

+

+/**

+ * Image Manipulation class

+ *

+ * @package		CodeIgniter

+ * @subpackage	Libraries

+ * @category	Image_lib

+ * @author		Rick Ellis

+ * @link		http://www.codeigniter.com/user_guide/libraries/image_lib.html

+ */

+class CI_Image_lib {

+	

+	var $image_library		= 'gd2';  	// Can be:  imagemagick, netpbm, gd, gd2

+	var $library_path		= '';

+	var $dynamic_output		= FALSE;	// Whether to send to browser or write to disk

+	var $source_image		= '';	

+	var $new_image			= '';

+	var $width				= '';

+	var $height				= '';

+	var $quality			= '90';

+	var $create_thumb		= FALSE;

+	var $thumb_marker		= '_thumb';

+	var $maintain_ratio		= TRUE;  	// Whether to maintain aspect ratio when resizing or use hard values

+	var $master_dim			= 'auto';	// auto, height, or width.  Determines what to use as the master dimension

+	var $rotation_angle		= '';

+	var $x_axis				= '';

+	var	$y_axis				= '';

+	

+	// Watermark Vars

+	var $wm_text			= '';			// Watermark text if graphic is not used

+	var $wm_type			= 'text';		// Type of watermarking.  Options:  text/overlay

+	var $wm_x_transp		= 4;

+	var $wm_y_transp		= 4;

+	var $wm_overlay_path	= '';			// Watermark image path

+	var $wm_font_path		= '';			// TT font

+	var $wm_font_size		= 17;			// Font size (different versions of GD will either use points or pixels)

+	var $wm_vrt_alignment	= 'B';			// Vertical alignment:   T M B

+	var $wm_hor_alignment	= 'C';			// Horizontal alignment: L R C

+	var $wm_padding			= 0;			// Padding around text

+	var $wm_hor_offset		= 0;			// Lets you push text to the right

+	var $wm_vrt_offset		= 0;			 // Lets you push  text down

+	var $wm_font_color		= '#ffffff';	// Text color

+	var $wm_shadow_color	= '';			// Dropshadow color

+	var $wm_shadow_distance	= 2;			// Dropshadow distance

+	var $wm_opacity			= 50; 			// Image opacity: 1 - 100  Only works with image

+	

+	// Private Vars

+	var $source_folder		= '';

+	var $dest_folder		= '';

+	var $mime_type			= '';

+	var $orig_width			= '';

+	var $orig_height		= '';

+	var $image_type			= '';

+	var $size_str			= '';

+	var $full_src_path		= '';

+	var $full_dst_path		= '';

+	var $create_fnc			= 'imagecreatetruecolor';

+	var $copy_fnc			= 'imagecopyresampled';

+	var $error_msg			= array();

+	var $wm_use_drop_shadow	= FALSE;

+	var $wm_use_truetype	= FALSE;		

+	

+	/**

+	 * Constructor

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	void

+	 */	

+	function CI_Image_lib($props = array())

+	{

+		if (count($props) > 0)

+		{

+			$this->initialize($props);

+		}

+		

+		log_message('debug', "Image Lib Class Initialized");

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Initialize image properties

+	 *

+	 * Resets values in case this class is used in a loop

+	 *

+	 * @access	public

+	 * @return	void

+	 */	

+	function clear()

+	{

+		$props = array('source_folder', 'dest_folder', 'source_image', 'full_src_path', 'full_dst_path', 'new_image', 'image_type', 'size_str', 'quality', 'orig_width', 'orig_height', 'rotation_angle', 'x_axis', 'y_axis', 'create_fnc', 'copy_fnc', 'wm_overlay_path', 'wm_use_truetype', 'dynamic_output', 'wm_font_size', 'wm_text', 'wm_vrt_alignment', 'wm_hor_alignment', 'wm_padding', 'wm_hor_offset', 'wm_vrt_offset', 'wm_font_color', 'wm_use_drop_shadow', 'wm_shadow_color', 'wm_shadow_distance', 'wm_opacity');

+	

+		foreach ($props as $val)

+		{

+			$this->$val = '';

+		}  		

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * initialize image preferences

+	 *

+	 * @access	public

+	 * @param	array

+	 * @return	void

+	 */	

+	function initialize($props = array())

+	{

+		/*

+		 * Convert array elements into class variables

+		 */

+		if (count($props) > 0)

+		{

+			foreach ($props as $key => $val)

+			{

+				$this->$key = $val;

+			}

+		}

+

+		/*

+		 * Is there a source image?

+		 *

+		 * If not, there's no reason to continue

+		 *

+		 */

+		if ($this->source_image == '')

+		{

+			$this->set_error('imglib_source_image_required');

+			return FALSE;	   	

+		}

+		

+		/*

+		 * Is getimagesize() Available?

+		 *

+		 * We use it to determine the image properties (width/height).

+		 * Note:  We need to figure out how to determine image

+		 * properties using ImageMagick and NetPBM

+		 *

+		 */		

+		if ( ! function_exists('getimagesize'))

+		{

+			$this->set_error('imglib_gd_required_for_props');

+			return FALSE;		

+		}

+		

+		$this->image_library = strtolower($this->image_library);

+		

+		/*

+		 * Set the full server path

+		 *

+		 * The source image may or may not contain a path.

+		 * Either way, we'll try use realpath to generate the

+		 * full server path in order to more reliably read it.

+		 *

+		 */	

+		if (function_exists('realpath') AND @realpath($this->source_image) !== FALSE)

+		{

+			$full_source_path = str_replace("\\", "/", realpath($this->source_image));

+		}

+		else

+		{

+			$full_source_path = $this->source_image;

+		}

+		

+		$x = explode('/', $full_source_path);

+		$this->source_image = end($x);

+		$this->source_folder = str_replace($this->source_image, '', $full_source_path);

+								

+		// Set the Image Properties

+		if ( ! $this->get_image_properties($this->source_folder.$this->source_image))

+		{

+			return FALSE;	   	

+		}				

+

+		/*

+		 * Assign the "new" image name/path

+		 *

+		 * If the user has set a "new_image" name it means

+		 * we are making a copy of the source image. If not

+		 * it means we are altering the original.  We'll

+		 * set the destination filename and path accordingly.

+		 *

+		 */			

+		if ($this->new_image == '')

+		{

+			$this->dest_image = $this->source_image;

+			$this->dest_folder = $this->source_folder;

+		}

+		else

+		{

+			if (strpos($this->new_image, '/') === FALSE)

+			{

+				$this->dest_folder = $this->source_folder;

+				$this->dest_image = $this->new_image;

+			}

+			else

+			{

+				if (function_exists('realpath') AND @realpath($this->new_image) !== FALSE)

+				{

+					$full_dest_path = str_replace("\\", "/", realpath($this->new_image));

+				}

+				else

+				{

+					$full_dest_path = $this->new_image;

+				}

+				

+				// Is there a file name?

+				if ( ! preg_match("#[\.jpg|\.jpeg|\.gif|\.png]$#i", $full_dest_path))

+				{

+					$this->dest_folder = $full_dest_path.'/';

+					$this->dest_image = $this->source_image;

+				}

+				else

+				{

+					$x = explode('/', $full_dest_path);

+					$this->dest_image = end($x);

+					$this->dest_folder = str_replace($this->dest_image, '', $full_dest_path);

+				}

+			}

+		}

+

+		/*

+		 * Compile the finalized filenames/paths

+		 *

+		 * We'll create two master strings containing the

+		 * full server path to the source image and the

+		 * full server path to the destination image.

+		 * We'll also split the destination image name

+		 * so we can insert the thumbnail marker if needed.

+		 *

+		 */	

+		if ($this->create_thumb === FALSE OR $this->thumb_marker == '')

+		{

+			$this->thumb_marker = '';

+		}

+

+		$xp	= $this->explode_name($this->dest_image);

+	

+		$filename = $xp['name'];

+		$file_ext = $xp['ext'];

+				

+		$this->full_src_path = $this->source_folder.$this->source_image;		

+		$this->full_dst_path = $this->dest_folder.$filename.$this->thumb_marker.$file_ext;

+

+		/*

+		 * Should we maintain image proportions?

+		 *

+		 * When creating thumbs or copies, the target width/height

+		 * might not be in correct proportion with the source

+		 * image's width/height.  We'll recalculate it here.

+		 *

+		 */	

+		if ($this->maintain_ratio === TRUE && ($this->width != '' AND $this->height != ''))

+		{

+			$this->image_reproportion();

+		}

+

+		/*

+		 * Was a width and height specified?

+		 *

+		 * If the destination width/height was

+		 * not submitted we will use the values

+		 * from the actual file

+		 *

+		 */	

+		if ($this->width == '')

+			$this->width = $this->orig_width;

+	

+		if ($this->height == '')

+			$this->height = $this->orig_height;

+	

+		// Set the quality

+		$this->quality = trim(str_replace("%", "", $this->quality));

+		

+		if ($this->quality == '' OR $this->quality == 0 OR ! is_numeric($this->quality))

+			$this->quality = 90;

+	

+		// Set the x/y coordinates

+		$this->x_axis = ($this->x_axis == '' OR ! is_numeric($this->x_axis)) ? 0 : $this->x_axis;

+		$this->y_axis = ($this->y_axis == '' OR ! is_numeric($this->y_axis)) ? 0 : $this->y_axis;

+	

+		// Watermark-related Stuff...

+		if ($this->wm_font_color != '')

+		{

+			if (strlen($this->wm_font_color) == 6)

+			{

+				$this->wm_font_color = '#'.$this->wm_font_color;

+			}

+		}

+		

+		if ($this->wm_shadow_color != '')

+		{

+			if (strlen($this->wm_shadow_color) == 6)

+			{

+				$this->wm_shadow_color = '#'.$this->wm_shadow_color;

+			}

+		}

+	

+		if ($this->wm_overlay_path != '')

+		{

+			$this->wm_overlay_path = str_replace("\\", "/", realpath($this->wm_overlay_path));

+		}

+	

+		if ($this->wm_shadow_color != '')

+		{

+			$this->wm_use_drop_shadow = TRUE;

+		}

+

+		if ($this->wm_font_path != '')

+		{

+			$this->wm_use_truetype = TRUE;

+		}

+

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Resize

+	 *

+	 * This is a wrapper function that chooses the proper

+	 * resize function based on the protocol specified

+	 *

+	 * @access	public

+	 * @return	bool

+	 */	

+	function resize()

+	{

+		$protocol = 'image_process_'.$this->image_library;

+		

+		if (eregi("gd2$", $protocol))

+		{

+			$protocol = 'image_process_gd';

+		}

+		

+		return $this->$protocol('resize');

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Crop

+	 *

+	 * This is a wrapper function that chooses the proper

+	 * cropping function based on the protocol specified

+	 *

+	 * @access	public

+	 * @return	bool

+	 */	

+	function crop()

+	{

+		$protocol = 'image_process_'.$this->image_library;

+		

+		if (eregi("gd2$", $protocol))

+		{

+			$protocol = 'image_process_gd';

+		}

+		

+		return $this->$protocol('crop');

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Rotate

+	 *

+	 * This is a wrapper function that chooses the proper

+	 * rotation function based on the protocol specified

+	 *

+	 * @access	public

+	 * @return	bool

+	 */	

+	function rotate()

+	{

+		// Allowed rotation values		

+		$degs = array(90, 180, 270, 'vrt', 'hor');	

+	

+		if ($this->rotation_angle == '' OR ! in_array($this->rotation_angle, $degs, TRUE))

+		{

+			$this->set_error('imglib_rotation_angle_required');

+			return FALSE;	   	

+		}

+	

+		// Reassign the width and height

+		if ($this->rotation_angle == 90 OR $this->rotation_angle == 270)

+		{

+			$this->width	= $this->orig_height;

+			$this->height	= $this->orig_width;

+		}

+		else

+		{

+			$this->width	= $this->orig_width;

+			$this->height	= $this->orig_height;

+		}

+	

+

+		// Choose resizing function

+		if ($this->image_library == 'imagemagick' OR $this->image_library == 'netpbm')

+		{

+			$protocol = 'image_process_'.$this->image_library;

+		

+			return $this->$protocol('rotate');

+		}

+		

+		if ($this->rotation_angle == 'hor' OR $this->rotation_angle == 'vrt')

+		{

+			return $this->image_mirror_gd();

+		}

+		else

+		{		

+			return $this->image_rotate_gd();

+		}

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Process Using GD/GD2

+	 *

+	 * This function will resize or crop

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	bool

+	 */		

+	function image_process_gd($action = 'resize')

+	{	

+		$v2_override = FALSE;

+			

+		if ($action == 'crop')

+		{

+			// If the target width/height match the source then it's pointless to crop, right?

+			if ($this->width >= $this->orig_width AND $this->height >= $this->orig_height)

+			{

+				// We'll return true so the user thinks the process succeeded.

+				// It'll be our little secret...

+	

+				return TRUE;

+			}

+			

+			//  Reassign the source width/height if cropping

+			$this->orig_width  = $this->width;

+			$this->orig_height = $this->height;	

+				

+			// GD 2.0 has a cropping bug so we'll test for it

+			if ($this->gd_version() !== FALSE)

+			{

+				$gd_version = str_replace('0', '', $this->gd_version());			

+				$v2_override = ($gd_version == 2) ? TRUE : FALSE;

+			}

+		}

+		else

+		{

+			// If the target width/height match the source, AND if

+			// the new file name is not equal to the old file name

+			// we'll simply make a copy of the original with the new name		

+			if (($this->orig_width == $this->width AND $this->orig_height == $this->height) AND ($this->source_image != $this->dest_image))

+			{

+				if ( ! @copy($this->full_src_path, $this->full_dst_path))

+				{

+					$this->set_error('imglib_copy_failed');

+					return FALSE;

+				}

+			

+				@chmod($this->full_dst_path, 0777);

+				return TRUE;

+			}

+			

+			// If resizing the x/y axis must be zero

+			$this->x_axis = 0;

+			$this->y_axis = 0;

+		}

+		

+		//  Create the image handle

+		if ( ! ($src_img = $this->image_create_gd()))

+		{		

+			return FALSE;

+		}

+

+		//  Create The Image

+		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)

+		{

+			$create	= 'imagecreatetruecolor';

+			$copy	= 'imagecopyresampled';

+		}

+		else

+		{

+			$create	= 'imagecreate';	

+			$copy	= 'imagecopyresized';

+		}

+			

+		$dst_img = $create($this->width, $this->height);

+		$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);

+

+		//  Show the image	

+		if ($this->dynamic_output == TRUE)

+		{

+			$this->image_display_gd($dst_img);

+		}

+		else

+		{

+			// Or save it

+			if ( ! $this->image_save_gd($dst_img))

+			{

+				return FALSE;

+			}

+		}

+

+		//  Kill the file handles

+		imagedestroy($dst_img);

+		imagedestroy($src_img);

+		

+		// Set the file to 777

+		@chmod($this->full_dst_path, 0777);

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Process Using ImageMagick

+	 *

+	 * This function will resize, crop or rotate

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	bool

+	 */		

+	function image_process_imagemagick($action = 'resize')

+	{

+		//  Do we have a vaild library path?

+		if ($this->library_path == '')

+		{

+			$this->set_error('imglib_libpath_invalid');

+			return FALSE;

+		}

+				

+		if ( ! eregi("convert$", $this->library_path))

+		{

+			if ( ! eregi("/$", $this->library_path)) $this->library_path .= "/";

+		

+			$this->library_path .= 'convert';

+		}

+		

+		// Execute the command

+		$cmd = $this->library_path." -quality ".$this->quality;

+	

+		if ($action == 'crop')

+		{

+			$cmd .= " -crop ".$this->width."x".$this->height."+".$this->x_axis."+".$this->y_axis." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";

+		}

+		elseif ($action == 'rotate')

+		{

+			switch ($this->rotation_angle)

+			{

+				case 'hor' 	: $angle = '-flop';

+					break;

+				case 'vrt' 	: $angle = '-flip';

+					break;

+				default		: $angle = '-rotate '.$this->rotation_angle;

+					break;

+			}			

+		

+			$cmd .= " ".$angle." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";

+		}

+		else  // Resize

+		{

+			$cmd .= " -resize ".$this->width."x".$this->height." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";

+		}

+	

+		$retval = 1;

+	

+		@exec($cmd, $output, $retval);

+

+		//	Did it work?	

+		if ($retval > 0)

+		{

+			$this->set_error('imglib_image_process_failed');

+			return FALSE;

+		}

+		

+		// Set the file to 777

+		@chmod($this->full_dst_path, 0777);

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Process Using NetPBM

+	 *

+	 * This function will resize, crop or rotate

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	bool

+	 */		

+	function image_process_netpbm($action = 'resize')

+	{

+		if ($this->library_path == '')

+		{

+			$this->set_error('imglib_libpath_invalid');

+			return FALSE;

+		}

+			

+		//  Build the resizing command

+		switch ($this->image_type)

+		{

+			case 1 :

+						$cmd_in		= 'giftopnm';

+						$cmd_out	= 'ppmtogif';

+				break;

+			case 2 :

+						$cmd_in		= 'jpegtopnm';

+						$cmd_out	= 'ppmtojpeg';			

+				break;

+			case 3 :

+						$cmd_in		= 'pngtopnm';

+						$cmd_out	= 'ppmtopng';

+				break;

+		}

+		

+		if ($action == 'crop')

+		{

+			$cmd_inner = 'pnmcut -left '.$this->x_axis.' -top '.$this->y_axis.' -width '.$this->width.' -height '.$this->height;

+		}

+		elseif ($action == 'rotate')

+		{

+			switch ($this->rotation_angle)

+			{

+				case 90		:	$angle = 'r270';

+					break;

+				case 180	:	$angle = 'r180';

+					break;

+				case 270 	:	$angle = 'r90';

+					break;

+				case 'vrt'	:	$angle = 'tb';

+					break;

+				case 'hor'	:	$angle = 'lr';

+					break;

+			}

+		

+			$cmd_inner = 'pnmflip -'.$angle.' ';

+		}

+		else // Resize

+		{

+			$cmd_inner = 'pnmscale -xysize '.$this->width.' '.$this->height;

+		}

+						

+		$cmd = $this->library_path.$cmd_in.' '.$this->full_src_path.' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';

+		

+		$retval = 1;

+		

+		@exec($cmd, $output, $retval);

+		

+		//  Did it work?

+		if ($retval > 0)

+		{

+			$this->set_error('imglib_image_process_failed');

+			return FALSE;

+		}

+		

+		// With NetPBM we have to create a temporary image.

+		// If you try manipulating the original it fails so

+		// we have to rename the temp file.

+		copy ($this->dest_folder.'netpbm.tmp', $this->full_dst_path);

+		unlink ($this->dest_folder.'netpbm.tmp');

+		@chmod($dst_image, 0777);

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Rotate Using GD

+	 *

+	 * @access	public

+	 * @return	bool

+	 */		

+	function image_rotate_gd()

+	{	

+		// Is Image Rotation Supported?

+		// this function is only supported as of PHP 4.3

+		if ( ! function_exists('imagerotate'))

+		{

+			$this->set_error('imglib_rotate_unsupported');

+			return FALSE;

+		}

+		

+		//  Create the image handle

+		if ( ! ($src_img = $this->image_create_gd()))

+		{		

+			return FALSE;

+		}

+

+		// Set the background color		

+		// This won't work with transparent PNG files so we are

+		// going to have to figure out how to determine the color

+		// of the alpha channel in a future release.

+	

+		$white	= imagecolorallocate($src_img, 255, 255, 255);

+

+		//  Rotate it!

+		$dst_img = imagerotate($src_img, $this->rotation_angle, $white);

+	

+		//  Save the Image

+		if ($this->dynamic_output == TRUE)

+		{

+			$this->image_display_gd($dst_img);

+		}

+		else

+		{

+			// Or save it

+			if ( ! $this->image_save_gd($dst_img))

+			{

+				return FALSE;

+			}

+		}

+

+		//  Kill the file handles

+		imagedestroy($dst_img);

+		imagedestroy($src_img);

+		

+		// Set the file to 777

+		

+		@chmod($this->full_dst_path, 0777);

+		

+		return true;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Create Mirror Image using GD

+	 *

+	 * This function will flip horizontal or vertical

+	 *

+	 * @access	public

+	 * @return	bool

+	 */			

+	function image_mirror_gd()

+	{		

+		if ( ! $src_img = $this->image_create_gd())

+		{

+			return FALSE;

+		}

+		

+		$width  = $this->orig_width;

+		$height = $this->orig_height;

+	

+		if ($this->rotation_angle == 'hor')

+		{

+			for ($i = 0; $i < $height; $i++)

+			{

+				$left  = 0;

+				$right = $width-1;

+	

+				while ($left < $right)

+				{

+					$cl = imagecolorat($src_img, $left, $i);

+					$cr = imagecolorat($src_img, $right, $i);

+					

+					imagesetpixel($src_img, $left, $i, $cr);

+					imagesetpixel($src_img, $right, $i, $cl);

+					

+					$left++;

+					$right--;

+				}

+			}

+		}

+		else

+		{

+			for ($i = 0; $i < $width; $i++)

+			{

+				$top = 0;

+				$bot = $height-1;

+	

+				while ($top < $bot)

+				{

+					$ct = imagecolorat($src_img, $i, $top);

+					$cb = imagecolorat($src_img, $i, $bot);

+					

+					imagesetpixel($src_img, $i, $top, $cb);

+					imagesetpixel($src_img, $i, $bot, $ct);

+					

+					$top++;

+					$bot--;

+				}

+			}		

+		}		

+

+		//  Show the image

+		if ($this->dynamic_output == TRUE)

+		{

+			$this->image_display_gd($src_img);

+		}

+		else

+		{

+			// Or save it

+			if ( ! $this->image_save_gd($src_img))

+			{

+				return FALSE;

+			}

+		}

+		

+		//  Kill the file handles

+		imagedestroy($src_img);

+		

+		// Set the file to 777

+		@chmod($this->full_dst_path, 0777);

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Image Watermark

+	 *

+	 * This is a wrapper function that chooses the type

+	 * of watermarking based on the specified preference.

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	bool

+	 */	

+	function watermark()

+	{

+		if ($this->wm_type == 'overlay')

+		{

+			return $this->overlay_watermark();

+		}

+		else

+		{

+			return $this->text_watermark();

+		}

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Watermark - Graphic Version

+	 *

+	 * @access	public

+	 * @return	bool

+	 */			

+	function overlay_watermark()

+	{

+		if ( ! function_exists('imagecolortransparent'))

+		{

+			$this->set_error('imglib_gd_required');

+			return FALSE;		

+		}

+	

+		//  Fetch source image properties

+		$this->get_image_properties();

+

+		//  Fetch watermark image properties

+		$props 			= $this->get_image_properties($this->wm_overlay_path, TRUE);	

+		$wm_img_type	= $props['image_type'];

+		$wm_width		= $props['width'];

+		$wm_height		= $props['height'];

+	

+		//  Create two image resources	

+		$wm_img  = $this->image_create_gd($this->wm_overlay_path, $wm_img_type);

+		$src_img = $this->image_create_gd($this->full_src_path);

+		

+		// Reverse the offset if necessary		

+		// When the image is positioned at the bottom

+		// we don't want the vertical offset to push it

+		// further down.  We want the reverse, so we'll

+		// invert the offset.  Same with the horizontal

+		// offset when the image is at the right

+		

+		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));

+		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));

+	

+		if ($this->wm_vrt_alignment == 'B')

+			$this->wm_vrt_offset = $this->wm_vrt_offset * -1;

+	

+		if ($this->wm_hor_alignment == 'R')

+			$this->wm_hor_offset = $this->wm_hor_offset * -1;

+

+		//  Set the base x and y axis values

+		$x_axis = $this->wm_hor_offset + $this->wm_padding;

+		$y_axis = $this->wm_vrt_offset + $this->wm_padding;

+

+		//  Set the vertical position

+		switch ($this->wm_vrt_alignment)

+		{

+			case 'T':

+				break;

+			case 'M':	$y_axis += ($this->orig_height / 2) - ($wm_height / 2);

+				break;

+			case 'B':	$y_axis += $this->orig_height - $wm_height;

+				break;

+		}

+

+		//  Set the horizontal position

+		switch ($this->wm_hor_alignment)

+		{

+			case 'L':

+				break;	

+			case 'C':	$x_axis += ($this->orig_width / 2) - ($wm_width / 2);

+				break;

+			case 'R':	$x_axis += $this->orig_width - $wm_width;

+				break;

+		}

+	

+		//  Build the finalized image			

+		if ($wm_img_type == 3 AND function_exists('imagealphablending'))

+		{

+			@imagealphablending($src_img, TRUE);

+		} 		

+

+		// Set RGB values for text and shadow		

+		imagecolortransparent($wm_img, imagecolorat($wm_img, $this->wm_x_transp, $this->wm_y_transp));

+		imagecopymerge($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height, $this->wm_opacity);

+				

+		//  Output the image

+		if ($this->dynamic_output == TRUE)

+		{

+			$this->image_display_gd($src_img);

+		}

+		else

+		{

+			if ( ! $this->image_save_gd($src_img))

+			{

+				return FALSE;

+			}

+		}

+		

+		imagedestroy($src_img);

+		imagedestroy($wm_img);

+				

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Watermark - Text Version

+	 *

+	 * @access	public

+	 * @return	bool

+	 */			

+	function text_watermark()

+	{

+		if ( ! ($src_img = $this->image_create_gd()))

+		{		

+			return FALSE;

+		}

+				

+		if ($this->wm_use_truetype == TRUE AND ! file_exists($this->wm_font_path))

+		{

+			$this->set_error('imglib_missing_font');

+			return FALSE;

+		}

+		

+		//  Fetch source image properties		

+		$this->get_image_properties();				

+		

+		// Set RGB values for text and shadow		

+		$this->wm_font_color	= str_replace('#', '', $this->wm_font_color);

+		$this->wm_shadow_color	= str_replace('#', '', $this->wm_shadow_color);

+		

+		$R1 = hexdec(substr($this->wm_font_color, 0, 2));

+		$G1 = hexdec(substr($this->wm_font_color, 2, 2));

+		$B1 = hexdec(substr($this->wm_font_color, 4, 2));

+	

+		$R2 = hexdec(substr($this->wm_shadow_color, 0, 2));

+		$G2 = hexdec(substr($this->wm_shadow_color, 2, 2));

+		$B2 = hexdec(substr($this->wm_shadow_color, 4, 2));

+		

+		$txt_color	= imagecolorclosest($src_img, $R1, $G1, $B1);

+		$drp_color	= imagecolorclosest($src_img, $R2, $G2, $B2);

+

+		// Reverse the vertical offset

+		// When the image is positioned at the bottom

+		// we don't want the vertical offset to push it

+		// further down.  We want the reverse, so we'll

+		// invert the offset.  Note: The horizontal

+		// offset flips itself automatically

+	

+		if ($this->wm_vrt_alignment == 'B')

+			$this->wm_vrt_offset = $this->wm_vrt_offset * -1;

+			

+		if ($this->wm_hor_alignment == 'R')

+			$this->wm_hor_offset = $this->wm_hor_offset * -1;

+

+		// Set font width and height

+		// These are calculated differently depending on

+		// whether we are using the true type font or not

+		if ($this->wm_use_truetype == TRUE)

+		{

+			if ($this->wm_font_size == '')

+				$this->wm_font_size = '17';

+		

+			$fontwidth  = $this->wm_font_size-($this->wm_font_size/4);

+			$fontheight = $this->wm_font_size;

+			$this->wm_vrt_offset += $this->wm_font_size;

+		}

+		else

+		{

+			$fontwidth  = imagefontwidth($this->wm_font_size);

+			$fontheight = imagefontheight($this->wm_font_size);

+		}

+

+		// Set base X and Y axis values

+		$x_axis = $this->wm_hor_offset + $this->wm_padding;

+		$y_axis = $this->wm_vrt_offset + $this->wm_padding;

+

+		// Set verticle alignment

+		if ($this->wm_use_drop_shadow == FALSE)

+			$this->wm_shadow_distance = 0;

+			

+		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));

+		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));

+	

+		switch ($this->wm_vrt_alignment)

+		{

+			case	 "T" :

+				break;

+			case "M":	$y_axis += ($this->orig_height/2)+($fontheight/2);

+				break;

+			case "B":	$y_axis += ($this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight/2));

+				break;

+		}

+	

+		$x_shad = $x_axis + $this->wm_shadow_distance;

+		$y_shad = $y_axis + $this->wm_shadow_distance;

+		

+		// Set horizontal alignment

+		switch ($this->wm_hor_alignment)

+		{

+			case "L":

+				break;

+			case "R":

+						if ($this->wm_use_drop_shadow)

+							$x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));

+							$x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));

+				break;

+			case "C":

+						if ($this->wm_use_drop_shadow)

+							$x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);

+							$x_axis += floor(($this->orig_width  -$fontwidth*strlen($this->wm_text))/2);

+				break;

+		}

+		

+		//  Add the text to the source image

+		if ($this->wm_use_truetype)

+		{	

+			if ($this->wm_use_drop_shadow)

+				imagettftext($src_img, $this->wm_font_size, 0, $x_shad, $y_shad, $drp_color, $this->wm_font_path, $this->wm_text);

+				imagettftext($src_img, $this->wm_font_size, 0, $x_axis, $y_axis, $txt_color, $this->wm_font_path, $this->wm_text);

+		}

+		else

+		{

+			if ($this->wm_use_drop_shadow)

+				imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color);

+				imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color);

+		}

+	

+		//  Output the final image

+		if ($this->dynamic_output == TRUE)

+		{

+			$this->image_display_gd($src_img);

+		}

+		else

+		{

+			$this->image_save_gd($src_img);

+		}

+		

+		imagedestroy($src_img);

+	

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Create Image - GD

+	 *

+	 * This simply creates an image resource handle

+	 * based on the type of image being processed

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	resource

+	 */			

+	function image_create_gd($path = '', $image_type = '')

+	{

+		if ($path == '')

+			$path = $this->full_src_path;

+			

+		if ($image_type == '')

+			$image_type = $this->image_type;

+	

+		

+		switch ($image_type)

+		{

+			case	 1 :

+						if ( ! function_exists('imagecreatefromgif'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));

+							return FALSE;

+						}

+					

+						return imagecreatefromgif($path);

+				break;

+			case 2 :

+						if ( ! function_exists('imagecreatefromjpeg'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));

+							return FALSE;

+						}

+					

+						return imagecreatefromjpeg($path);

+				break;

+			case 3 :

+						if ( ! function_exists('imagecreatefrompng'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));				

+							return FALSE;

+						}

+					

+						return imagecreatefrompng($path);

+				break;			

+		

+		}

+		

+		$this->set_error(array('imglib_unsupported_imagecreate'));

+		return FALSE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Write image file to disk - GD

+	 *

+	 * Takes an image resource as input and writes the file

+	 * to the specified destination

+	 *

+	 * @access	public

+	 * @param	resource

+	 * @return	bool

+	 */			

+	function image_save_gd($resource)

+	{	

+		switch ($this->image_type)

+		{

+			case 1 :

+						if ( ! function_exists('imagegif'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));

+							return FALSE;		

+						}

+						

+						@imagegif($resource, $this->full_dst_path);

+				break;

+			case 2	:

+						if ( ! function_exists('imagejpeg'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));

+							return FALSE;		

+						}

+						

+						if (phpversion() == '4.4.1')

+						{

+							@touch($this->full_dst_path); // PHP 4.4.1 bug #35060 - workaround

+						}

+						

+						@imagejpeg($resource, $this->full_dst_path, $this->quality);

+				break;

+			case 3	:

+						if ( ! function_exists('imagepng'))

+						{

+							$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));

+							return FALSE;		

+						}

+					

+						@imagepng($resource, $this->full_dst_path);

+				break;

+			default		:

+							$this->set_error(array('imglib_unsupported_imagecreate'));

+							return FALSE;		

+				break;		

+		}

+	

+		return TRUE;

+	}	

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Dynamically outputs an image

+	 *

+	 * @access	public

+	 * @param	resource

+	 * @return	void

+	 */			

+	function image_display_gd($resource)

+	{		

+		header("Content-Disposition: filename={$this->source_image};");

+		header("Content-Type: {$this->mime_type}");

+		header('Content-Transfer-Encoding: binary');

+		header('Last-Modified: '.gmdate('D, d M Y H:i:s', time()).' GMT');

+	

+		switch ($this->image_type)

+		{

+			case 1 		:	imagegif($resource);

+				break;

+			case 2		:	imagejpeg($resource, '', $this->quality);

+				break;

+			case 3		:	imagepng($resource);

+				break;

+			default		:	echo 'Unable to display the image';

+				break;		

+		}			

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Re-proportion Image Width/Height

+	 *

+	 * When creating thumbs, the desired width/height

+	 * can end up warping the image due to an incorrect

+	 * ratio between the full-sized image and the thumb.

+	 *

+	 * This function lets us re-proportion the width/height

+	 * if users choose to maintain the aspect ratio when resizing.

+	 *

+	 * @access	public

+	 * @return	void

+	 */			

+	function image_reproportion()

+	{

+		if ( ! is_numeric($this->width) OR ! is_numeric($this->height) OR $this->width == 0 OR $this->height == 0)

+			return;

+		

+		if ( ! is_numeric($this->orig_width) OR ! is_numeric($this->orig_height) OR $this->orig_width == 0 OR $this->orig_height == 0)

+			return;

+		

+		$new_width	= ceil($this->orig_width*$this->height/$this->orig_height);		

+		$new_height	= ceil($this->width*$this->orig_height/$this->orig_width);

+		

+		$ratio = (($this->orig_height/$this->orig_width) - ($this->height/$this->width));

+	

+		if ($this->master_dim != 'width' AND $this->master_dim != 'height')

+		{

+			$this->master_dim = ($ratio < 0) ? 'width' : 'height';

+		}

+		

+		if (($this->width != $new_width) AND ($this->height != $new_height))

+		{

+			if ($this->master_dim == 'height')

+			{

+				$this->width = $new_width;

+			}

+			else

+			{

+				$this->height = $new_height;

+			}

+		}

+	}	

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Get image properties

+	 *

+	 * A helper function that gets info about the file

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	mixed

+	 */			

+	function get_image_properties($path = '', $return = FALSE)

+	{

+		// For now we require GD but we should

+		// find a way to determine this using IM or NetPBM

+		

+		if ($path == '')

+			$path = $this->full_src_path;

+				

+		if ( ! file_exists($path))

+		{

+			$this->set_error('imglib_invalid_path');		

+			return FALSE;				

+		}

+		

+		$vals = @getimagesize($path);

+		

+		$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');

+		

+		$mime = (isset($types[$vals['2']])) ? 'image/'.$types[$vals['2']] : 'image/jpg';

+				

+		if ($return == TRUE)

+		{

+			$v['width']			= $vals['0'];

+			$v['height']		= $vals['1'];

+			$v['image_type']	= $vals['2'];

+			$v['size_str']		= $vals['3'];

+			$v['mime_type']		= $mime;

+			

+			return $v;

+		}

+		

+		$this->orig_width	= $vals['0'];

+		$this->orig_height	= $vals['1'];

+		$this->image_type	= $vals['2'];

+		$this->size_str		= $vals['3'];

+		$this->mime_type	= $mime;

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Size calculator

+	 *

+	 * This function takes a known width x height and

+	 * recalculates it to a new size.  Only one

+	 * new variable needs to be known

+	 *

+	 *	$props = array(

+	 *					'width' 		=> $width,

+	 *					'height' 		=> $height,

+	 *					'new_width'		=> 40,

+	 *					'new_height'	=> ''

+	 *				  );

+	 *

+	 * @access	public

+	 * @param	array

+	 * @return	array

+	 */			

+	function size_calculator($vals)

+	{

+		if ( ! is_array($vals))

+			return;

+			

+		$allowed = array('new_width', 'new_height', 'width', 'height');

+	

+		foreach ($allowed as $item)

+		{

+			if ( ! isset($vals[$item]) OR $vals[$item] == '')

+				$vals[$item] = 0;

+		}

+		

+		if ($vals['width'] == 0 OR $vals['height'] == 0)

+		{

+			return $vals;

+		}

+			

+		if ($vals['new_width'] == 0)

+		{

+			$vals['new_width'] = ceil($vals['width']*$vals['new_height']/$vals['height']);

+		}

+		elseif ($vals['new_height'] == 0)

+		{

+			$vals['new_height'] = ceil($vals['new_width']*$vals['height']/$vals['width']);

+		}

+	

+		return $vals;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Explode source_image

+	 *

+	 * This is a helper function that extracts the extension

+	 * from the source_image.  This function lets us deal with

+	 * source_images with multiple periods, like:  my.cool.jpg

+	 * It returns an associative array with two elements:

+	 * $array['ext']  = '.jpg';

+	 * $array['name'] = 'my.cool';

+	 *

+	 * @access	public

+	 * @param	array

+	 * @return	array

+	 */	

+	function explode_name($source_image)

+	{

+		$x = explode('.', $source_image);

+		$ret['ext'] = '.'.end($x);

+		

+		$name = '';

+		

+		$ct = count($x)-1;

+		

+		for ($i = 0; $i < $ct; $i++)

+		{

+			$name .= $x[$i];

+			

+			if ($i < ($ct - 1))

+			{

+				$name .= '.';

+			}

+		}

+		

+		$ret['name'] = $name;

+		

+		return $ret;

+	}	

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Is GD Installed?

+	 *

+	 * @access	public

+	 * @return	bool

+	 */	

+	function gd_loaded()

+	{

+		if ( ! extension_loaded('gd'))

+		{

+			if ( ! dl('gd.so'))

+			{

+				return FALSE;

+			}

+		}

+		

+		return TRUE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Get GD version

+	 *

+	 * @access	public

+	 * @return	mixed

+	 */	

+	function gd_version()

+	{

+		if (function_exists('gd_info'))

+		{

+			$gd_version = @gd_info();

+			$gd_version = preg_replace("/\D/", "", $gd_version['GD Version']);

+			

+			return $gd_version;

+		}

+		

+		return FALSE;

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Set error message

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	void

+	 */	

+	function set_error($msg)

+	{

+		$CI =& get_instance();

+		$CI->lang->load('imglib');

+		

+		if (is_array($msg))

+		{

+			foreach ($msg as $val)

+			{

+				

+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);

+				$this->error_msg[] = $msg;

+				log_message('error', $msg);

+			}		

+		}

+		else

+		{

+			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);

+			$this->error_msg[] = $msg;

+			log_message('error', $msg);

+		}

+	}

+	

+	// --------------------------------------------------------------------

+	

+	/**

+	 * Show error messages

+	 *

+	 * @access	public

+	 * @param	string

+	 * @return	string

+	 */	

+	function display_errors($open = '<p>', $close = '</p>')

+	{	

+		$str = '';

+		foreach ($this->error_msg as $val)

+		{

+			$str .= $open.$val.$close;

+		}

+	

+		return $str;

+	}

+

+}

+// END Image_lib Class

 ?>
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