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-rw-r--r--system/libraries/Image_lib.php1221
1 files changed, 716 insertions, 505 deletions
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 7f905128b..0cb189445 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1,85 +1,369 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
+ *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst. It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
*
* @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
+ * @author EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
+ * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* Image Manipulation class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Image_lib
- * @author ExpressionEngine Dev Team
+ * @author EllisLab 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 = '';
+ /**
+ * PHP extension/library to use for image manipulation
+ * Can be: imagemagick, netpbm, gd, gd2
+ *
+ * @var string
+ */
+ public $image_library = 'gd2';
+
+ /**
+ * Path to the graphic library (if applicable)
+ *
+ * @var string
+ */
+ public $library_path = '';
+
+ /**
+ * Whether to send to browser or write to disk
+ *
+ * @var bool
+ */
+ public $dynamic_output = FALSE;
+
+ /**
+ * Path to original image
+ *
+ * @var string
+ */
+ public $source_image = '';
+
+ /**
+ * Path to the modified image
+ *
+ * @var string
+ */
+ public $new_image = '';
+
+ /**
+ * Image width
+ *
+ * @var int
+ */
+ public $width = '';
+
+ /**
+ * Image height
+ *
+ * @var int
+ */
+ public $height = '';
+
+ /**
+ * Quality percentage of new image
+ *
+ * @var int
+ */
+ public $quality = 90;
+
+ /**
+ * Whether to create a thumbnail
+ *
+ * @var bool
+ */
+ public $create_thumb = FALSE;
+
+ /**
+ * String to add to thumbnail version of image
+ *
+ * @var string
+ */
+ public $thumb_marker = '_thumb';
+
+ /**
+ * Whether to maintain aspect ratio when resizing or use hard values
+ *
+ * @var bool
+ */
+ public $maintain_ratio = TRUE;
+
+ /**
+ * auto, height, or width. Determines what to use as the master dimension
+ *
+ * @var string
+ */
+ public $master_dim = 'auto';
+
+ /**
+ * Angle at to rotate image
+ *
+ * @var string
+ */
+ public $rotation_angle = '';
+
+ /**
+ * X Coordinate for manipulation of the current image
+ *
+ * @var int
+ */
+ public $x_axis = '';
+
+ /**
+ * Y Coordinate for manipulation of the current image
+ *
+ * @var int
+ */
+ public $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
+ // --------------------------------------------------------------------------
+
+ /**
+ * Watermark text if graphic is not used
+ *
+ * @var string
+ */
+ public $wm_text = '';
+
+ /**
+ * Type of watermarking. Options: text/overlay
+ *
+ * @var string
+ */
+ public $wm_type = 'text';
+
+ /**
+ * Default transparency for watermark
+ *
+ * @var int
+ */
+ public $wm_x_transp = 4;
+
+ /**
+ * Default transparency for watermark
+ *
+ * @var int
+ */
+ public $wm_y_transp = 4;
+
+ /**
+ * Watermark image path
+ *
+ * @var string
+ */
+ public $wm_overlay_path = '';
+
+ /**
+ * TT font
+ *
+ * @var string
+ */
+ public $wm_font_path = '';
+
+ /**
+ * Font size (different versions of GD will either use points or pixels)
+ *
+ * @var int
+ */
+ public $wm_font_size = 17;
+
+ /**
+ * Vertical alignment: T M B
+ *
+ * @var string
+ */
+ public $wm_vrt_alignment = 'B';
+
+ /**
+ * Horizontal alignment: L R C
+ *
+ * @var string
+ */
+ public $wm_hor_alignment = 'C';
+
+ /**
+ * Padding around text
+ *
+ * @var int
+ */
+ public $wm_padding = 0;
+
+ /**
+ * Lets you push text to the right
+ *
+ * @var int
+ */
+ public $wm_hor_offset = 0;
+
+ /**
+ * Lets you push text down
+ *
+ * @var int
+ */
+ public $wm_vrt_offset = 0;
+
+ /**
+ * Text color
+ *
+ * @var string
+ */
+ protected $wm_font_color = '#ffffff';
+ /**
+ * Dropshadow color
+ *
+ * @var string
+ */
+ protected $wm_shadow_color = '';
+
+ /**
+ * Dropshadow distance
+ *
+ * @var int
+ */
+ public $wm_shadow_distance = 2;
+
+ /**
+ * Image opacity: 1 - 100 Only works with image
+ *
+ * @var int
+ */
+ public $wm_opacity = 50;
+
+ // --------------------------------------------------------------------------
// 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
+ // --------------------------------------------------------------------------
+
+ /**
+ * Source image folder
*
- * @param string
+ * @var string
+ */
+ public $source_folder = '';
+
+ /**
+ * Destination image folder
+ *
+ * @var string
+ */
+ public $dest_folder = '';
+
+ /**
+ * Image mime-type
+ *
+ * @var string
+ */
+ public $mime_type = '';
+
+ /**
+ * Original image width
+ *
+ * @var int
+ */
+ public $orig_width = '';
+
+ /**
+ * Original image height
+ *
+ * @var int
+ */
+ public $orig_height = '';
+
+ /**
+ * Image format
+ *
+ * @var string
+ */
+ public $image_type = '';
+
+ /**
+ * Size of current image
+ *
+ * @var string
+ */
+ public $size_str = '';
+
+ /**
+ * Full path to source image
+ *
+ * @var string
+ */
+ public $full_src_path = '';
+
+ /**
+ * Full path to destination image
+ *
+ * @var string
+ */
+ public $full_dst_path = '';
+
+ /**
+ * Name of function to create image
+ *
+ * @var string
+ */
+ public $create_fnc = 'imagecreatetruecolor';
+
+ /**
+ * Name of function to copy image
+ *
+ * @var string
+ */
+ public $copy_fnc = 'imagecopyresampled';
+
+ /**
+ * Error messages
+ *
+ * @var array
+ */
+ public $error_msg = array();
+
+ /**
+ * Whether to have a drop shadow on watermark
+ *
+ * @var bool
+ */
+ protected $wm_use_drop_shadow = FALSE;
+
+ /**
+ * Whether to use truetype fonts
+ *
+ * @var bool
+ */
+ public $wm_use_truetype = FALSE;
+
+ /**
+ * Initialize Image Library
+ *
+ * @param array $props
* @return void
*/
public function __construct($props = array())
@@ -89,7 +373,7 @@ class CI_Image_lib {
$this->initialize($props);
}
- log_message('debug', "Image Lib Class Initialized");
+ log_message('debug', 'Image Lib Class Initialized');
}
// --------------------------------------------------------------------
@@ -99,20 +383,41 @@ class CI_Image_lib {
*
* Resets values in case this class is used in a loop
*
- * @access public
* @return void
*/
- function clear()
+ public 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');
+ $props = array('library_path', 'source_image', 'new_image', 'width', 'height', 'rotation_angle', 'x_axis', 'y_axis', 'wm_text', 'wm_overlay_path', 'wm_font_path', 'wm_shadow_color', 'source_folder', 'dest_folder', 'mime_type', 'orig_width', 'orig_height', 'image_type', 'size_str', 'full_src_path', 'full_dst_path');
foreach ($props as $val)
{
$this->$val = '';
}
- // special consideration for master_dim
- $this->master_dim = 'auto';
+ $this->image_library = 'gd2';
+ $this->dynamic_output = FALSE;
+ $this->quality = 90;
+ $this->create_thumb = FALSE;
+ $this->thumb_marker = '_thumb';
+ $this->maintain_ratio = TRUE;
+ $this->master_dim = 'auto';
+ $this->wm_type = 'text';
+ $this->wm_x_transp = 4;
+ $this->wm_y_transp = 4;
+ $this->wm_font_size = 17;
+ $this->wm_vrt_alignment = 'B';
+ $this->wm_hor_alignment = 'C';
+ $this->wm_padding = 0;
+ $this->wm_hor_offset = 0;
+ $this->wm_vrt_offset = 0;
+ $this->wm_font_color = '#ffffff';
+ $this->wm_shadow_distance = 2;
+ $this->wm_opacity = 50;
+ $this->create_fnc = 'imagecreatetruecolor';
+ $this->copy_fnc = 'imagecopyresampled';
+ $this->error_msg = array();
+ $this->wm_use_drop_shadow = FALSE;
+ $this->wm_use_truetype = FALSE;
}
// --------------------------------------------------------------------
@@ -120,42 +425,58 @@ class CI_Image_lib {
/**
* initialize image preferences
*
- * @access public
* @param array
* @return bool
*/
- function initialize($props = array())
+ public function initialize($props = array())
{
- /*
- * Convert array elements into class variables
- */
+ // Convert array elements into class variables
if (count($props) > 0)
{
foreach ($props as $key => $val)
{
- $this->$key = $val;
+ if (property_exists($this, $key))
+ {
+ if (in_array($key, array('wm_font_color', 'wm_shadow_color')))
+ {
+ if (preg_match('/^#?([0-9a-f]{3}|[0-9a-f]{6})$/i', $val, $matches))
+ {
+ /* $matches[1] contains our hex color value, but it might be
+ * both in the full 6-length format or the shortened 3-length
+ * value.
+ * We'll later need the full version, so we keep it if it's
+ * already there and if not - we'll convert to it. We can
+ * access string characters by their index as in an array,
+ * so we'll do that and use concatenation to form the final
+ * value:
+ */
+ $val = (strlen($matches[1]) === 6)
+ ? '#'.$matches[1]
+ : '#'.$matches[1][0].$matches[1][0].$matches[1][1].$matches[1][1].$matches[1][2].$matches[1][2];
+ }
+ else
+ {
+ continue;
+ }
+ }
+
+ $this->$key = $val;
+ }
}
}
- /*
- * Is there a source image?
- *
- * If not, there's no reason to continue
- *
- */
+ // Is there a source image? If not, there's no reason to continue
if ($this->source_image == '')
{
$this->set_error('imglib_source_image_required');
- return FALSE;
+ return FALSE;
}
- /*
- * Is getimagesize() Available?
+ /* Is getimagesize() available?
*
* We use it to determine the image properties (width/height).
- * Note: We need to figure out how to determine image
+ * Note: We need to figure out how to determine image
* properties using ImageMagick and NetPBM
- *
*/
if ( ! function_exists('getimagesize'))
{
@@ -165,17 +486,15 @@ class CI_Image_lib {
$this->image_library = strtolower($this->image_library);
- /*
- * Set the full server path
+ /* 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($this->source_image) !== FALSE)
+ if (function_exists('realpath') && @realpath($this->source_image) !== FALSE)
{
- $full_source_path = str_replace("\\", "/", realpath($this->source_image));
+ $full_source_path = str_replace('\\', '/', realpath($this->source_image));
}
else
{
@@ -189,7 +508,7 @@ class CI_Image_lib {
// Set the Image Properties
if ( ! $this->get_image_properties($this->source_folder.$this->source_image))
{
- return FALSE;
+ return FALSE;
}
/*
@@ -197,64 +516,58 @@ class CI_Image_lib {
*
* If the user has set a "new_image" name it means
* we are making a copy of the source image. If not
- * it means we are altering the original. We'll
+ * it means we are altering the original. We'll
* set the destination filename and path accordingly.
- *
*/
if ($this->new_image == '')
{
$this->dest_image = $this->source_image;
$this->dest_folder = $this->source_folder;
}
+ elseif (strpos($this->new_image, '/') === FALSE)
+ {
+ $this->dest_folder = $this->source_folder;
+ $this->dest_image = $this->new_image;
+ }
else
{
- if (strpos($this->new_image, '/') === FALSE AND strpos($this->new_image, '\\') === FALSE)
+ if (strpos($this->new_image, '/') === FALSE && strpos($this->new_image, '\\') === FALSE)
{
- $this->dest_folder = $this->source_folder;
- $this->dest_image = $this->new_image;
+ $full_dest_path = str_replace('\\', '/', realpath($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;
- }
+ $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, '', $full_dest_path);
- }
+ // Is there a file name?
+ if ( ! preg_match('#\.(jpg|jpeg|gif|png)$#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, '', $full_dest_path);
}
}
- /*
- * Compile the finalized filenames/paths
+ /* Compile the finalized filenames/paths
*
* We'll create two master strings containing the
* full server path to the source image and the
* full server path to the destination image.
* We'll also split the destination image name
* so we can insert the thumbnail marker if needed.
- *
*/
if ($this->create_thumb === FALSE OR $this->thumb_marker == '')
{
$this->thumb_marker = '';
}
- $xp = $this->explode_name($this->dest_image);
+ $xp = $this->explode_name($this->dest_image);
$filename = $xp['name'];
$file_ext = $xp['ext'];
@@ -262,69 +575,58 @@ class CI_Image_lib {
$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?
+ /* 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.
- *
+ * image's width/height. We'll recalculate it here.
*/
- if ($this->maintain_ratio === TRUE && ($this->width != '' AND $this->height != ''))
+ if ($this->maintain_ratio === TRUE && ($this->width != 0 OR $this->height != 0))
{
$this->image_reproportion();
}
- /*
- * Was a width and height specified?
- *
- * If the destination width/height was
- * not submitted we will use the values
- * from the actual file
+ /* Was a width and height specified?
*
+ * If the destination width/height was not submitted we
+ * will use the values from the actual file
*/
if ($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));
+ $this->quality = trim(str_replace('%', '', $this->quality));
- if ($this->quality == '' OR $this->quality == 0 OR ! is_numeric($this->quality))
+ if ($this->quality == '' OR $this->quality == 0 OR ! preg_match('/^[0-9]+$/', $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;
+ $this->x_axis = ($this->x_axis == '' OR ! preg_match('/^[0-9]+$/', $this->x_axis)) ? 0 : $this->x_axis;
+ $this->y_axis = ($this->y_axis == '' OR ! preg_match('/^[0-9]+$/', $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));
+ $this->wm_overlay_path = str_replace('\\', '/', realpath($this->wm_overlay_path));
}
if ($this->wm_shadow_color != '')
{
$this->wm_use_drop_shadow = TRUE;
}
+ elseif ($this->wm_use_drop_shadow == TRUE && $this->wm_shadow_color == '')
+ {
+ $this->wm_use_drop_shadow = FALSE;
+ }
if ($this->wm_font_path != '')
{
@@ -342,18 +644,11 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* resize function based on the protocol specified
*
- * @access public
* @return bool
*/
- function resize()
+ public function resize()
{
- $protocol = 'image_process_'.$this->image_library;
-
- if (preg_match('/gd2$/i', $protocol))
- {
- $protocol = 'image_process_gd';
- }
-
+ $protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
return $this->$protocol('resize');
}
@@ -365,18 +660,11 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* cropping function based on the protocol specified
*
- * @access public
* @return bool
*/
- function crop()
+ public function crop()
{
- $protocol = 'image_process_'.$this->image_library;
-
- if (preg_match('/gd2$/i', $protocol))
- {
- $protocol = 'image_process_gd';
- }
-
+ $protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
return $this->$protocol('crop');
}
@@ -388,10 +676,9 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* rotation function based on the protocol specified
*
- * @access public
* @return bool
*/
- function rotate()
+ public function rotate()
{
// Allowed rotation values
$degs = array(90, 180, 270, 'vrt', 'hor');
@@ -399,7 +686,7 @@ class CI_Image_lib {
if ($this->rotation_angle == '' OR ! in_array($this->rotation_angle, $degs))
{
$this->set_error('imglib_rotation_angle_required');
- return FALSE;
+ return FALSE;
}
// Reassign the width and height
@@ -414,23 +701,16 @@ class CI_Image_lib {
$this->height = $this->orig_height;
}
-
// Choose resizing function
- if ($this->image_library == 'imagemagick' OR $this->image_library == 'netpbm')
+ if ($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 $this->image_rotate_gd();
- }
+ return ($this->rotation_angle === 'hor' OR $this->rotation_angle === 'vrt')
+ ? $this->image_mirror_gd()
+ : $this->image_rotate_gd();
}
// --------------------------------------------------------------------
@@ -440,36 +720,29 @@ class CI_Image_lib {
*
* This function will resize or crop
*
- * @access public
* @param string
* @return bool
*/
- function image_process_gd($action = 'resize')
+ public 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->dynamic_output === FALSE && $this->orig_width == $this->width && $this->orig_height == $this->height)
{
- if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
+ if ($this->source_image != $this->new_image && @copy($this->full_src_path, $this->full_dst_path))
{
- if ($this->source_image != $this->new_image)
- {
- if (@copy($this->full_src_path, $this->full_dst_path))
- {
- @chmod($this->full_dst_path, FILE_WRITE_MODE);
- }
- }
-
- return TRUE;
+ @chmod($this->full_dst_path, FILE_WRITE_MODE);
}
+
+ return TRUE;
}
// Let's set up our values based on the action
if ($action == 'crop')
{
- // Reassign the source width/height if cropping
+ // Reassign the source width/height if cropping
$this->orig_width = $this->width;
$this->orig_height = $this->height;
@@ -493,14 +766,15 @@ class CI_Image_lib {
return FALSE;
}
- // Create The Image
- //
- // old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
- // it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
- // below should that ever prove inaccurate.
- //
- // if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
- if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
+ /* Create 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' && function_exists('imagecreatetruecolor') && $v2_override == FALSE)
+ */
+ if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor'))
{
$create = 'imagecreatetruecolor';
$copy = 'imagecopyresampled';
@@ -521,21 +795,17 @@ class CI_Image_lib {
$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);
- // Show the image
+ // Show the image
if ($this->dynamic_output == TRUE)
{
$this->image_display_gd($dst_img);
}
- else
+ elseif ( ! $this->image_save_gd($dst_img)) // Or save it
{
- // Or save it
- if ( ! $this->image_save_gd($dst_img))
- {
- return FALSE;
- }
+ return FALSE;
}
- // Kill the file handles
+ // Kill the file handles
imagedestroy($dst_img);
imagedestroy($src_img);
@@ -552,11 +822,10 @@ class CI_Image_lib {
*
* This function will resize, crop or rotate
*
- * @access public
* @param string
* @return bool
*/
- function image_process_imagemagick($action = 'resize')
+ public function image_process_imagemagick($action = 'resize')
{
// Do we have a vaild library path?
if ($this->library_path == '')
@@ -565,44 +834,34 @@ class CI_Image_lib {
return FALSE;
}
- if ( ! preg_match("/convert$/i", $this->library_path))
+ if ( ! preg_match('/convert$/i', $this->library_path))
{
- $this->library_path = rtrim($this->library_path, '/').'/';
-
- $this->library_path .= 'convert';
+ $this->library_path = rtrim($this->library_path, '/').'/convert';
}
// Execute the command
- $cmd = $this->library_path." -quality ".$this->quality;
+ $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";
+ $cmd .= ' -crop '.$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;
- }
+ $angle = ($this->rotation_angle === 'hor' OR $this->rotation_angle === 'vrt')
+ ? '-flop' : '-rotate '.$this->rotation_angle;
- $cmd .= " ".$angle." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
+ $cmd .= ' '.$angle.' "'.$this->full_src_path.'" "'.$this->full_dst_path.'" 2>&1';
}
- else // Resize
+ else // Resize
{
- $cmd .= " -resize ".$this->width."x".$this->height." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
+ $cmd .= ' -resize '.$this->width.'x'.$this->height.' "'.$this->full_src_path.'" "'.$this->full_dst_path.'" 2>&1';
}
$retval = 1;
-
@exec($cmd, $output, $retval);
- // Did it work?
+ // Did it work?
if ($retval > 0)
{
$this->set_error('imglib_image_process_failed');
@@ -622,11 +881,10 @@ class CI_Image_lib {
*
* This function will resize, crop or rotate
*
- * @access public
* @param string
* @return bool
*/
- function image_process_netpbm($action = 'resize')
+ public function image_process_netpbm($action = 'resize')
{
if ($this->library_path == '')
{
@@ -634,20 +892,20 @@ class CI_Image_lib {
return FALSE;
}
- // Build the resizing command
+ // Build the resizing command
switch ($this->image_type)
{
case 1 :
- $cmd_in = 'giftopnm';
- $cmd_out = 'ppmtogif';
+ $cmd_in = 'giftopnm';
+ $cmd_out = 'ppmtogif';
break;
case 2 :
- $cmd_in = 'jpegtopnm';
- $cmd_out = 'ppmtojpeg';
+ $cmd_in = 'jpegtopnm';
+ $cmd_out = 'ppmtojpeg';
break;
case 3 :
- $cmd_in = 'pngtopnm';
- $cmd_out = 'ppmtopng';
+ $cmd_in = 'pngtopnm';
+ $cmd_out = 'ppmtopng';
break;
}
@@ -659,15 +917,15 @@ class CI_Image_lib {
{
switch ($this->rotation_angle)
{
- case 90 : $angle = 'r270';
+ case 90: $angle = 'r270';
break;
- case 180 : $angle = 'r180';
+ case 180: $angle = 'r180';
break;
- case 270 : $angle = 'r90';
+ case 270: $angle = 'r90';
break;
- case 'vrt' : $angle = 'tb';
+ case 'vrt': $angle = 'tb';
break;
- case 'hor' : $angle = 'lr';
+ case 'hor': $angle = 'lr';
break;
}
@@ -681,10 +939,9 @@ class CI_Image_lib {
$cmd = $this->library_path.$cmd_in.' '.$this->full_src_path.' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';
$retval = 1;
-
@exec($cmd, $output, $retval);
- // Did it work?
+ // Did it work?
if ($retval > 0)
{
$this->set_error('imglib_image_process_failed');
@@ -695,7 +952,7 @@ class CI_Image_lib {
// If you try manipulating the original it fails so
// we have to rename the temp file.
copy ($this->dest_folder.'netpbm.tmp', $this->full_dst_path);
- unlink ($this->dest_folder.'netpbm.tmp');
+ unlink($this->dest_folder.'netpbm.tmp');
@chmod($this->full_dst_path, FILE_WRITE_MODE);
return TRUE;
@@ -706,12 +963,11 @@ class CI_Image_lib {
/**
* Image Rotate Using GD
*
- * @access public
* @return bool
*/
- function image_rotate_gd()
+ public function image_rotate_gd()
{
- // Create the image handle
+ // Create the image handle
if ( ! ($src_img = $this->image_create_gd()))
{
return FALSE;
@@ -724,29 +980,24 @@ class CI_Image_lib {
$white = imagecolorallocate($src_img, 255, 255, 255);
- // Rotate it!
+ // Rotate it!
$dst_img = imagerotate($src_img, $this->rotation_angle, $white);
- // Save the Image
+ // Show the image
if ($this->dynamic_output == TRUE)
{
$this->image_display_gd($dst_img);
}
- else
+ elseif ( ! $this->image_save_gd($dst_img)) // ... or save it
{
- // Or save it
- if ( ! $this->image_save_gd($dst_img))
- {
- return FALSE;
- }
+ return FALSE;
}
- // Kill the file handles
+ // Kill the file handles
imagedestroy($dst_img);
imagedestroy($src_img);
// Set the file to 777
-
@chmod($this->full_dst_path, FILE_WRITE_MODE);
return TRUE;
@@ -759,10 +1010,9 @@ class CI_Image_lib {
*
* This function will flip horizontal or vertical
*
- * @access public
* @return bool
*/
- function image_mirror_gd()
+ public function image_mirror_gd()
{
if ( ! $src_img = $this->image_create_gd())
{
@@ -772,13 +1022,10 @@ class CI_Image_lib {
$width = $this->orig_width;
$height = $this->orig_height;
- if ($this->rotation_angle == 'hor')
+ if ($this->rotation_angle === 'hor')
{
- for ($i = 0; $i < $height; $i++)
+ for ($i = 0; $i < $height; $i++, $left = 0, $right = $width-1)
{
- $left = 0;
- $right = $width-1;
-
while ($left < $right)
{
$cl = imagecolorat($src_img, $left, $i);
@@ -794,11 +1041,8 @@ class CI_Image_lib {
}
else
{
- for ($i = 0; $i < $width; $i++)
+ for ($i = 0; $i < $width; $i++, $top = 0, $bot = $height-1)
{
- $top = 0;
- $bot = $height-1;
-
while ($top < $bot)
{
$ct = imagecolorat($src_img, $i, $top);
@@ -813,21 +1057,17 @@ class CI_Image_lib {
}
}
- // Show the image
+ // Show the image
if ($this->dynamic_output == TRUE)
{
$this->image_display_gd($src_img);
}
- else
+ elseif ( ! $this->image_save_gd($src_img)) // ... or save it
{
- // Or save it
- if ( ! $this->image_save_gd($src_img))
- {
- return FALSE;
- }
+ return FALSE;
}
- // Kill the file handles
+ // Kill the file handles
imagedestroy($src_img);
// Set the file to 777
@@ -844,20 +1084,11 @@ class CI_Image_lib {
* This is a wrapper function that chooses the type
* of watermarking based on the specified preference.
*
- * @access public
- * @param string
* @return bool
*/
- function watermark()
+ public function watermark()
{
- if ($this->wm_type == 'overlay')
- {
- return $this->overlay_watermark();
- }
- else
- {
- return $this->text_watermark();
- }
+ return ($this->wm_type === 'overlay') ? $this->overlay_watermark() : $this->text_watermark();
}
// --------------------------------------------------------------------
@@ -865,10 +1096,9 @@ class CI_Image_lib {
/**
* Watermark - Graphic Version
*
- * @access public
* @return bool
*/
- function overlay_watermark()
+ public function overlay_watermark()
{
if ( ! function_exists('imagecolortransparent'))
{
@@ -876,28 +1106,28 @@ class CI_Image_lib {
return FALSE;
}
- // Fetch source image properties
+ // Fetch source image properties
$this->get_image_properties();
- // Fetch watermark image properties
- $props = $this->get_image_properties($this->wm_overlay_path, TRUE);
+ // 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'];
+ $wm_width = $props['width'];
+ $wm_height = $props['height'];
- // Create two image resources
+ // 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
+ // 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));
+ $this->wm_vrt_alignment = strtoupper($this->wm_vrt_alignment[0]);
+ $this->wm_hor_alignment = strtoupper($this->wm_hor_alignment[0]);
if ($this->wm_vrt_alignment == 'B')
$this->wm_vrt_offset = $this->wm_vrt_offset * -1;
@@ -905,34 +1135,32 @@ class CI_Image_lib {
if ($this->wm_hor_alignment == 'R')
$this->wm_hor_offset = $this->wm_hor_offset * -1;
- // Set the base x and y axis values
+ // 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)
+ // Set the vertical position
+ if ($this->wm_vrt_alignment === 'M')
{
- 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;
+ $y_axis += ($this->orig_height / 2) - ($wm_height / 2);
+ }
+ elseif ($this->wm_vrt_alignment === 'B')
+ {
+ $y_axis += $this->orig_height - $wm_height;
}
- // Set the horizontal position
- switch ($this->wm_hor_alignment)
+ // Set the horizontal position
+ if ($this->wm_hor_alignment === 'C')
{
- 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;
+ $x_axis += ($this->orig_width / 2) - ($wm_width / 2);
+ }
+ elseif ($this->wm_hor_alignment === 'R')
+ {
+ $x_axis += $this->orig_width - $wm_width;
}
// Build the finalized image
- if ($wm_img_type == 3 AND function_exists('imagealphablending'))
+ if ($wm_img_type == 3 && function_exists('imagealphablending'))
{
@imagealphablending($src_img, TRUE);
}
@@ -954,17 +1182,14 @@ class CI_Image_lib {
imagecopymerge($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height, $this->wm_opacity);
}
- // Output the image
+ // Output the image
if ($this->dynamic_output == TRUE)
{
$this->image_display_gd($src_img);
}
- else
+ elseif ( ! $this->image_save_gd($src_img)) // ... or save it
{
- if ( ! $this->image_save_gd($src_img))
- {
- return FALSE;
- }
+ return FALSE;
}
imagedestroy($src_img);
@@ -978,45 +1203,29 @@ class CI_Image_lib {
/**
* Watermark - Text Version
*
- * @access public
* @return bool
*/
- function text_watermark()
+ public function text_watermark()
{
if ( ! ($src_img = $this->image_create_gd()))
{
return FALSE;
}
- if ($this->wm_use_truetype == TRUE AND ! file_exists($this->wm_font_path))
+ if ($this->wm_use_truetype == TRUE && ! file_exists($this->wm_font_path))
{
$this->set_error('imglib_missing_font');
return FALSE;
}
- // Fetch source image properties
+ // 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, $B2);
-
// Reverse the vertical offset
// When the image is positioned at the bottom
// we don't want the vertical offset to push it
- // further down. We want the reverse, so we'll
- // invert the offset. Note: The horizontal
+ // further down. We want the reverse, so we'll
+ // invert the offset. Note: The horizontal
// offset flips itself automatically
if ($this->wm_vrt_alignment == 'B')
@@ -1031,7 +1240,9 @@ class CI_Image_lib {
if ($this->wm_use_truetype == TRUE)
{
if ($this->wm_font_size == '')
- $this->wm_font_size = '17';
+ {
+ $this->wm_font_size = 17;
+ }
$fontwidth = $this->wm_font_size-($this->wm_font_size/4);
$fontheight = $this->wm_font_size;
@@ -1047,58 +1258,64 @@ class CI_Image_lib {
$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 ($this->wm_vrt_alignment)
+ // Set verticle alignment
+ if ($this->wm_vrt_alignment === 'M')
{
- 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;
+ $y_axis += ($this->orig_height / 2) + ($fontheight / 2);
+ }
+ elseif ($this->wm_vrt_alignment === 'B')
+ {
+ $y_axis += $this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight / 2);
}
$x_shad = $x_axis + $this->wm_shadow_distance;
$y_shad = $y_axis + $this->wm_shadow_distance;
- // Set horizontal alignment
- switch ($this->wm_hor_alignment)
+ if ($this->wm_use_drop_shadow)
{
- case "L":
- break;
- case "R":
- if ($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;
- }
+ // Set horizontal alignment
+ if ($this->wm_hor_alignment === 'R')
+ {
+ $x_shad += $this->orig_width - ($fontwidth * strlen($this->wm_text));
+ $x_axis += $this->orig_width - ($fontwidth * strlen($this->wm_text));
+ }
+ elseif ($this->wm_hor_alignment === 'C')
+ {
+ $x_shad += floor(($this->orig_width - ($fontwidth * strlen($this->wm_text))) / 2);
+ $x_axis += floor(($this->orig_width - ($fontwidth * strlen($this->wm_text))) / 2);
+ }
- // Add the text to the source image
- if ($this->wm_use_truetype)
- {
- if ($this->wm_use_drop_shadow)
+ /* Set RGB values for text and shadow
+ *
+ * First character is #, so we don't really need it.
+ * Get the rest of the string and split it into 2-length
+ * hex values:
+ */
+ $txt_color = str_split(substr($this->wm_font_color, 1, 6), 2);
+ $txt_color = imagecolorclosest($src_img, hexdec($txt_color[0]), hexdec($txt_color[1]), hexdec($txt_color[2]));
+ $drp_color = str_split(substr($this->wm_shadow_color, 1, 6), 2);
+ $drp_color = imagecolorclosest($src_img, hexdec($drp_color[0]), hexdec($drp_color[1]), hexdec($drp_color[2]));
+
+ // Add the text to the source image
+ if ($this->wm_use_truetype)
+ {
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)
+ }
+ else
+ {
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, $txt_color);
+ }
}
- // Output the final image
+ // Output the final image
if ($this->dynamic_output == TRUE)
{
$this->image_display_gd($src_img);
@@ -1121,11 +1338,11 @@ class CI_Image_lib {
* This simply creates an image resource handle
* based on the type of image being processed
*
- * @access public
+ * @param string
* @param string
* @return resource
*/
- function image_create_gd($path = '', $image_type = '')
+ public function image_create_gd($path = '', $image_type = '')
{
if ($path == '')
$path = $this->full_src_path;
@@ -1178,57 +1395,56 @@ class CI_Image_lib {
* Takes an image resource as input and writes the file
* to the specified destination
*
- * @access public
* @param resource
* @return bool
*/
- function image_save_gd($resource)
+ public 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;
- }
+ case 1:
+ if ( ! function_exists('imagegif'))
+ {
+ $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));
+ return FALSE;
+ }
- if ( ! @imagegif($resource, $this->full_dst_path))
- {
- $this->set_error('imglib_save_failed');
- return FALSE;
- }
- break;
- case 2 :
- if ( ! function_exists('imagejpeg'))
- {
- $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));
- return FALSE;
- }
+ if ( ! @imagegif($resource, $this->full_dst_path))
+ {
+ $this->set_error('imglib_save_failed');
+ return FALSE;
+ }
+ break;
+ case 2:
+ if ( ! function_exists('imagejpeg'))
+ {
+ $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));
+ return FALSE;
+ }
- if ( ! @imagejpeg($resource, $this->full_dst_path, $this->quality))
- {
- $this->set_error('imglib_save_failed');
- return FALSE;
- }
- break;
- case 3 :
- if ( ! function_exists('imagepng'))
- {
- $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));
- return FALSE;
- }
+ if ( ! @imagejpeg($resource, $this->full_dst_path, $this->quality))
+ {
+ $this->set_error('imglib_save_failed');
+ return FALSE;
+ }
+ break;
+ case 3:
+ if ( ! function_exists('imagepng'))
+ {
+ $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));
+ return FALSE;
+ }
- if ( ! @imagepng($resource, $this->full_dst_path))
- {
- $this->set_error('imglib_save_failed');
- return FALSE;
- }
- break;
- default :
- $this->set_error(array('imglib_unsupported_imagecreate'));
- return FALSE;
- break;
+ if ( ! @imagepng($resource, $this->full_dst_path))
+ {
+ $this->set_error('imglib_save_failed');
+ return FALSE;
+ }
+ break;
+ default:
+ $this->set_error(array('imglib_unsupported_imagecreate'));
+ return FALSE;
+ break;
}
return TRUE;
@@ -1239,26 +1455,25 @@ class CI_Image_lib {
/**
* Dynamically outputs an image
*
- * @access public
* @param resource
* @return void
*/
- function image_display_gd($resource)
+ public function image_display_gd($resource)
{
- header("Content-Disposition: filename={$this->source_image};");
- header("Content-Type: {$this->mime_type}");
+ header('Content-Disposition: filename='.$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($resource);
+ case 1 : imagegif($resource);
break;
- case 2 : imagejpeg($resource, '', $this->quality);
+ case 2 : imagejpeg($resource, '', $this->quality);
break;
- case 3 : imagepng($resource);
+ case 3 : imagepng($resource);
break;
- default : echo 'Unable to display the image';
+ default: echo 'Unable to display the image';
break;
}
}
@@ -1275,38 +1490,47 @@ class CI_Image_lib {
* This function lets us re-proportion the width/height
* if users choose to maintain the aspect ratio when resizing.
*
- * @access public
* @return void
*/
- function image_reproportion()
+ public function image_reproportion()
{
- if ( ! is_numeric($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 $this->master_dim != 'height')
+ if (($this->width == 0 && $this->height == 0) OR $this->orig_width == 0 OR $this->orig_height == 0
+ OR ( ! preg_match('/^[0-9]+$/', $this->width) && ! preg_match('/^[0-9]+$/', $this->height))
+ OR ! preg_match('/^[0-9]+$/', $this->orig_width) OR ! preg_match('/^[0-9]+$/', $this->orig_height))
{
- $this->master_dim = ($ratio < 0) ? 'width' : 'height';
+ return;
}
- if (($this->width != $new_width) AND ($this->height != $new_height))
+ // Sanitize so we don't call preg_match() anymore
+ $this->width = (int) $this->width;
+ $this->height = (int) $this->height;
+
+ if ($this->master_dim !== 'width' && $this->master_dim !== 'height')
{
- if ($this->master_dim == 'height')
+ if ($this->width > 0 && $this->height > 0)
{
- $this->width = $new_width;
+ $this->master_dim = ((($this->orig_height/$this->orig_width) - ($this->height/$this->width)) < 0)
+ ? 'width' : 'height';
}
else
{
- $this->height = $new_height;
+ $this->master_dim = ($this->height === 0) ? 'width' : 'height';
}
}
+ elseif (($this->master_dim === 'width' && $this->width === 0)
+ OR ($this->master_dim === 'height' && $this->height === 0))
+ {
+ return;
+ }
+
+ if ($this->master_dim === 'width')
+ {
+ $this->height = (int) ceil($this->width*$this->orig_height/$this->orig_width);
+ }
+ else
+ {
+ $this->width = (int) ceil($this->orig_width*$this->height/$this->orig_height);
+ }
}
// --------------------------------------------------------------------
@@ -1316,17 +1540,19 @@ class CI_Image_lib {
*
* A helper function that gets info about the file
*
- * @access public
* @param string
+ * @param bool
* @return mixed
*/
- function get_image_properties($path = '', $return = FALSE)
+ public function get_image_properties($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))
{
@@ -1334,27 +1560,25 @@ class CI_Image_lib {
return FALSE;
}
- $vals = @getimagesize($path);
-
+ $vals = getimagesize($path);
$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
-
- $mime = (isset($types[$vals['2']])) ? 'image/'.$types[$vals['2']] : 'image/jpg';
+ $mime = (isset($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;
+ return array(
+ 'width' => $vals[0],
+ 'height' => $vals[1],
+ 'image_type' => $vals[2],
+ 'size_str' => $vals[3],
+ 'mime_type' => $mime
+ );
}
- $this->orig_width = $vals['0'];
- $this->orig_height = $vals['1'];
- $this->image_type = $vals['2'];
- $this->size_str = $vals['3'];
+ $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;
@@ -1366,21 +1590,20 @@ class CI_Image_lib {
* Size calculator
*
* This function takes a known width x height and
- * recalculates it to a new size. Only one
+ * 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' => ''
- * );
+ * 'width' => $width,
+ * 'height' => $height,
+ * 'new_width' => 40,
+ * 'new_height' => ''
+ * );
*
- * @access public
* @param array
* @return array
*/
- function size_calculator($vals)
+ public function size_calculator($vals)
{
if ( ! is_array($vals))
{
@@ -1391,8 +1614,10 @@ class CI_Image_lib {
foreach ($allowed as $item)
{
- if ( ! isset($vals[$item]) OR $vals[$item] == '')
+ if (empty($vals[$item]))
+ {
$vals[$item] = 0;
+ }
}
if ($vals['width'] == 0 OR $vals['height'] == 0)
@@ -1419,16 +1644,15 @@ class CI_Image_lib {
*
* 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
+ * 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)
+ public function explode_name($source_image)
{
$ext = strrchr($source_image, '.');
$name = ($ext === FALSE) ? $source_image : substr($source_image, 0, -strlen($ext));
@@ -1441,17 +1665,16 @@ class CI_Image_lib {
/**
* Is GD Installed?
*
- * @access public
* @return bool
*/
- function gd_loaded()
+ public function gd_loaded()
{
if ( ! extension_loaded('gd'))
{
- if ( ! dl('gd.so'))
- {
- return FALSE;
- }
+ /* As it is stated in the PHP manual, dl() is not always available
+ * and even if so - it could generate an E_WARNING message on failure
+ */
+ return (function_exists('dl') && @dl('gd.so'));
}
return TRUE;
@@ -1462,17 +1685,14 @@ class CI_Image_lib {
/**
* Get GD version
*
- * @access public
* @return mixed
*/
- function gd_version()
+ public 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 preg_replace('/\D/', '', $gd_version['GD Version']);
}
return FALSE;
@@ -1483,11 +1703,10 @@ class CI_Image_lib {
/**
* Set error message
*
- * @access public
* @param string
* @return void
*/
- function set_error($msg)
+ public function set_error($msg)
{
$CI =& get_instance();
$CI->lang->load('imglib');
@@ -1496,7 +1715,6 @@ class CI_Image_lib {
{
foreach ($msg as $val)
{
-
$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
$this->error_msg[] = $msg;
log_message('error', $msg);
@@ -1515,23 +1733,16 @@ class CI_Image_lib {
/**
* Show error messages
*
- * @access public
+ * @param string
* @param string
* @return string
*/
- function display_errors($open = '<p>', $close = '</p>')
+ public function display_errors($open = '<p>', $close = '</p>')
{
- $str = '';
- foreach ($this->error_msg as $val)
- {
- $str .= $open.$val.$close;
- }
-
- return $str;
+ return (count($this->error_msg) > 0) ? $open.implode($close.$open, $this->error_msg).$close : '';
}
}
-// END Image_lib Class
/* End of file Image_lib.php */
/* Location: ./system/libraries/Image_lib.php */ \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-04 23:35:22 +0100