corrected a few docblock comments to accurately reflect return values

removed some unneeded whitespace

1 files changed, 1547 insertions, 1545 deletions

diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 67b73096b..16201ee9e 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1,1546 +1,1548 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

-/**

- * CodeIgniter

- *

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

- *

- * @package		CodeIgniter

- * @author		ExpressionEngine Dev Team

- * @copyright	Copyright (c) 2008, EllisLab, Inc.

- * @license		http://codeigniter.com/user_guide/license.html

- * @link		http://codeigniter.com

- * @since		Version 1.0

- * @filesource

- */

-

-// ------------------------------------------------------------------------

-

-/**

- * Image Manipulation class

- *

- * @package		CodeIgniter

- * @subpackage	Libraries

- * @category	Image_lib

- * @author		ExpressionEngine Dev Team

- * @link		http://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 = '';

-		}

-

-		// special consideration for master_dim

-		$this->master_dim = 'auto';

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * 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 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... assuming dynamic rendering is off.

-		if ($this->dynamic_output === FALSE)

-		{

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

-			{

- 				if ($this->source_image != $this->new_image)

- 				{

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

-					{

-						@chmod($this->full_dst_path, DIR_WRITE_MODE);

-					}

-				}

-				

-				return TRUE;

-			}

-		}

-		

-		// Let's set up our values based on the action

-		if ($action == 'crop')

-		{

-			//  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 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

-		//

-		//  old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"

-		//  it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment

-		//  below should that ever prove inaccurate.

-		//

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

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

-		{

-			$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, DIR_WRITE_MODE);

-		

-		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, DIR_WRITE_MODE);

-		

-		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($this->full_dst_path, DIR_WRITE_MODE);

-		

-		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, DIR_WRITE_MODE);

-		

-		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, DIR_WRITE_MODE);

-		

-		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

-		$rgba = imagecolorat($wm_img, $this->wm_x_transp, $this->wm_y_transp);

-		$alpha = ($rgba & 0x7F000000) >> 24;

-		

-		// make a best guess as to whether we're dealing with an image with alpha transparency or no/binary transparency

-		if ($alpha > 0)

-		{

-			// copy the image directly, the image's alpha transparency being the sole determinant of blending

-			imagecopy($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height);

-		}

-		else

-		{

-			// set our RGB value from above to be transparent and merge the images with the specified opacity

-			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

-

-/* End of file Image_lib.php */

+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Image Manipulation class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Image_lib
+ * @author		ExpressionEngine Dev Team
+ * @link		http://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 = '';
+		}
+
+		// special consideration for master_dim
+		$this->master_dim = 'auto';
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * initialize image preferences
+	 *
+	 * @access	public
+	 * @param	array
+	 * @return	bool
+	 */
+	function initialize($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')
+	{
+		$v2_override = FALSE;
+
+		// If the target width/height match the source, AND if the new file name is not equal to the old file name
+		// we'll simply make a copy of the original with the new name... assuming dynamic rendering is off.
+		if ($this->dynamic_output === FALSE)
+		{
+			if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
+			{
+ 				if ($this->source_image != $this->new_image)
+ 				{
+					if (@copy($this->full_src_path, $this->full_dst_path))
+					{
+						@chmod($this->full_dst_path, DIR_WRITE_MODE);
+					}
+				}
+
+				return TRUE;
+			}
+		}
+
+		// Let's set up our values based on the action
+		if ($action == 'crop')
+		{
+			//  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 resizing the x/y axis must be zero
+			$this->x_axis = 0;
+			$this->y_axis = 0;
+		}
+
+		//  Create the image handle
+		if ( ! ($src_img = $this->image_create_gd()))
+		{
+			return FALSE;
+		}
+
+ 		//  Create The Image
+		//
+		//  old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
+		//  it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
+		//  below should that ever prove inaccurate.
+		//
+		//  if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
+ 		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
+		{
+			$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($this->full_dst_path, DIR_WRITE_MODE);
+
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Image Process Using ImageMagick
+	 *
+	 * This function will resize, crop or rotate
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	bool
+	 */
+	function image_process_imagemagick($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, DIR_WRITE_MODE);
+
+		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($this->full_dst_path, DIR_WRITE_MODE);
+
+		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, DIR_WRITE_MODE);
+
+		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, DIR_WRITE_MODE);
+
+		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
+		$rgba = imagecolorat($wm_img, $this->wm_x_transp, $this->wm_y_transp);
+		$alpha = ($rgba & 0x7F000000) >> 24;
+
+		// make a best guess as to whether we're dealing with an image with alpha transparency or no/binary transparency
+		if ($alpha > 0)
+		{
+			// copy the image directly, the image's alpha transparency being the sole determinant of blending
+			imagecopy($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height);
+		}
+		else
+		{
+			// set our RGB value from above to be transparent and merge the images with the specified opacity
+			imagecolortransparent($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
+
+/* End of file Image_lib.php */
 /* Location: ./system/libraries/Image_lib.php */
\ No newline at end of file