Файл: IPBMafia.ru_IPB_3.4.6_Final_Rus _Nulled/board/upload/ips_kernel/classImageGd.php
Строк: 692
<?php
/**
* <pre>
* Invision Power Services
* IP.Board v3.4.6
* Image Handler: GD2 Library
* Last Updated: $Date: 2013-02-06 19:48:42 -0500 (Wed, 06 Feb 2013) $
* </pre>
*
* @author $Author: bfarber $
* @copyright (c) 2001 - 2009 Invision Power Services, Inc.
* @license http://www.invisionpower.com/company/standards.php#license
* @package IP.Board
* @subpackage Kernel
* @link http://www.invisionpower.com
* @since Monday 5th May 2008 14:00
* @version $Revision: 11951 $
*
* GD Example
* <code>
* $image = new classImageGd();
* $image->init( array(
* 'image_path' => "/path/to/images/",
* 'image_file' => "image_filename.jpg",
* ) );
*
* if( $image->error )
* {
* print $image->error;exit;
* }
*
* Set max width and height
* $image->resizeImage( 600, 480 );
* // Add a watermark
* $image->addWatermark( "/path/to/watermark/trans.png" );
* //$image->addCopyrightText( "Hello World!", array( 'color' => '#ffffff', 'font' => 3 ) );
* $image->displayImage();
* </code>
*/
class classImageGd extends classImage implements interfaceImage
{
/**
* Image resource
*
* @var resource
*/
protected $image = null;
/**
* Image quality settings
*
* @var array
*/
public $quality = array( 'png' => 8, 'jpg' => 75 );
/**
* Initiate image handler, perform any necessary setup
*
* @param array Necessary options to init module [image_path, image_file]
* @return @e boolean
*/
public function init( $opts=array() )
{
//---------------------------------------------------------
// Verify input
//---------------------------------------------------------
if( empty($opts['image_path']) )
{
$this->error = 'no_image_path';
return false;
}
if( empty($opts['image_file']) )
{
$this->error = 'no_image_file';
return false;
}
//---------------------------------------------------------
// Store paths
//---------------------------------------------------------
$this->image_path = $this->_cleanPaths( $opts['image_path'] );
$this->image_file = $opts['image_file'];
$this->image_full = $this->image_path . '/' . $this->image_file;
//---------------------------------------------------------
// Get extension
//---------------------------------------------------------
$this->image_extension = strtolower(pathinfo( $this->image_file, PATHINFO_EXTENSION ));
//---------------------------------------------------------
// Verify this is a valid image type
//---------------------------------------------------------
if( !in_array( $this->image_extension, $this->image_types ) )
{
$this->error = 'image_not_supported';
return false;
}
//---------------------------------------------------------
// Quality values
//---------------------------------------------------------
if( !empty($opts['jpg_quality']) )
{
$this->quality['jpg'] = $opts['jpg_quality'];
}
if( !empty($opts['png_quality']) )
{
$this->quality['png'] = $opts['png_quality'];
}
//---------------------------------------------------------
// Get and remember dimensions
//---------------------------------------------------------
$dimensions = @getimagesize( $this->image_full );
$this->orig_dimensions = array( 'width' => $dimensions[0], 'height' => $dimensions[1] );
$this->cur_dimensions = $this->orig_dimensions;
//---------------------------------------------------------
// Create image resource
//---------------------------------------------------------
switch( $this->image_extension )
{
case 'gif':
$this->image = @imagecreatefromgif( $this->image_full );
break;
case 'jpeg':
case 'jpg':
case 'jpe':
$this->image = @imagecreatefromjpeg( $this->image_full );
break;
case 'png':
$this->image = @imagecreatefrompng( $this->image_full );
if( $this->image )
{
@imagealphablending( $this->image, TRUE );
@imagesavealpha( $this->image, TRUE );
}
break;
}
if( !$this->image )
{
//-----------------------------------------
// Fallback
// @see http://forums.invisionpower.com/index.php?app=tracker&showissue=17836
//-----------------------------------------
if( $this->image = @imagecreatefromstring( file_get_contents( $this->image_full ) ) )
{
return true;
}
$this->error = 'no_full_image';
return false;
}
else
{
return true;
}
}
/**
* Resizes and image, then crops an image to a fixed ratio
*
* @param int Width of final cropped image
* @param int Height of final cropped image
* @param @e array
*/
public function croppedResize( $width, $height )
{
/* Changes here made to prevent "division by 0" errors when getimagesize() failed */
$ratioOrig = $this->orig_dimensions['width'] / ( $this->orig_dimensions['height'] ? $this->orig_dimensions['height'] : 1 );
/* This breaks square thumbs - always adds black bars */
if( $ratioOrig < 1 )
{
//$ratioOrig = 1;
}
if ( $width / $height > $ratioOrig )
{
$nheight = $width / $ratioOrig;
$nwidth = $width;
}
else
{
$nwidth = $height * $ratioOrig;
$nheight = $height;
}
$vals = $this->resizeImage( $nwidth, $nheight );
/* Crop from center */
$_x = $vals['newWidth'] / 2;
$_y = $vals['newHeight'] / 2;
$this->_cropX = ( $_x - ( $width / 2 ) );
$this->_cropY = ( $_y - ( $height / 2 ) );
$this->cur_dimensions['width'] = $width;
$this->cur_dimensions['height'] = $height;
return $this->resizeImage( $width, $height, true );
}
/**
* Crops an image
*
* @param int Crop from X
* @param int Crop from Y
* @param int Width
* @param int Height
* @return @e array
*/
public function crop( $x1, $y1, $width, $height )
{
$this->_cropX = $x1;
$this->_cropY = $y1;
$this->cur_dimensions['width'] = $width;
$this->cur_dimensions['height'] = $height;
return $this->resizeImage( $width, $height, true );
}
/**
* Resize image proportionately
*
* @param integer Maximum width
* @param integer Maximum height
* @param boolean Second pass of image for crop
* @param boolean Instead of resizing image to same size, return false if the image doesn't need to be resized
* @param array Canvas size - if larger than resized image, image will be placed in the center
* @return @e array
*/
public function resizeImage( $width, $height, $secondPass=false, $returnIfUnnecessary=false, $canvas=array() )
{
//---------------------------------------------------------
// Get proportionate dimensions and store
//---------------------------------------------------------
$dst_x = 0;
$dst_y = 0;
if ( ! $secondPass )
{
$new_dims = $this->_getResizeDimensions( $width, $height );
if( !$new_dims['img_width'] )
{
$new_dims = array(
'img_width' => $this->cur_dimensions['width'],
'img_height' => $this->cur_dimensions['height'],
'cur_width' => $this->cur_dimensions['width'],
'cur_height' => $this->cur_dimensions['height'],
);
}
/* Canvas? */
if ( is_array( $canvas ) && count( $canvas ) )
{
$storedNewDims = $new_dims;
$new_dims = array( 'img_width' => $canvas[0], 'img_height' => $canvas[1], 'cur_width' => $new_dims['cur_width'] ? $new_dims['cur_width'] : $this->cur_dimensions['width'], 'cur_height' => $new_dims['cur_height'] ? $new_dims['cur_height'] : $this->cur_dimensions['height'] );
if ( $storedNewDims['img_width'] < $canvas[0] )
{
$dst_x = ( $canvas[0] - $storedNewDims['img_width'] ) / 2;
}
if ( $storedNewDims['img_height'] < $canvas[1] )
{
$dst_y = ( $canvas[1] - $storedNewDims['img_height'] ) / 2;
}
}
}
else
{
$new_dims['img_width'] = $width;
$new_dims['img_height'] = $height;
}
//---------------------------------------------------------
// If new image is same size as original, just return original
// This preserves GIF animation and allows images not to be "compressed" unnecessarily
//---------------------------------------------------------
if ( $returnIfUnnecessary AND ! $this->force_resize )
{
if ( ( $this->orig_dimensions['width'] <= $width ) AND ( $this->orig_dimensions['height'] <= $height ) )
{
return array(
'originalWidth' => $this->orig_dimensions['width'],
'originalHeight' => $this->orig_dimensions['height'],
'newWidth' => $this->orig_dimensions['width'],
'newHeight' => $this->orig_dimensions['height'],
'noResize' => true
);
}
}
if( ! is_array($new_dims) OR !count($new_dims) OR !$new_dims['img_width'] )
{
if( ! $this->force_resize )
{
return array( 'originalWidth' => $this->orig_dimensions['width'],
'originalHeight' => $this->orig_dimensions['height'],
'newWidth' => $this->orig_dimensions['width'],
'newHeight' => $this->orig_dimensions['height'],
'noResize' => true );
}
else
{
// @see http://community.invisionpower.com/tracker/issue-20025-attached-images-gets-resized-even-when-its-dimensions-are-lower-than-limits/
$new_dims['img_width'] = ( $width > $this->orig_dimensions['width'] ) ? $this->orig_dimensions['width'] : $width;
$new_dims['img_height'] = ( $height > $this->orig_dimensions['height'] ) ? $this->orig_dimensions['height'] : $height;
}
}
//---------------------------------------------------------
// Create new image resource
//---------------------------------------------------------
$new_img = @imagecreatetruecolor( $new_dims['img_width'], $new_dims['img_height'] );
if ( ! $new_img )
{
$this->error = 'image_creation_failed';
return array();
}
/* If we specified a canvas, then we need to restore the $new_dims ready for the image copy */
if ( is_array( $canvas ) and count( $canvas ) )
{
$new_dims = $storedNewDims;
/* And fill canvas with white */
@imagefilledrectangle( $new_img, 0, 0, $canvas[0], $canvas[1], imagecolorallocatealpha( $new_img, 255, 255, 255, 0 ) );
}
//---------------------------------------------------------
// Apply alpha blending
//---------------------------------------------------------
switch( $this->image_extension )
{
/* GIFs require a lot of extra work */
case 'gif':
/* Using the method described at http://us2.php.net/manual/en/function.imagecopyresampled.php#89987 for gif transparency. Bug #20826 */
@imagealphablending( $new_img, FALSE );
$transindex = @imagecolortransparent( $this->image );
if( $transindex >= 0 )
{
$transcol = @imagecolorsforindex( $this->image, $transindex );
$transindex = @imagecolorallocatealpha( $new_img, $transcol['red'], $transcol['green'], $transcol['blue'], 127 );
@imagefill( $new_img, 0, 0, $transindex );
}
break;
case 'jpeg':
case 'jpg':
case 'jpe':
@imagealphablending( $new_img, TRUE );
break;
case 'png':
@imagealphablending( $new_img, FALSE );
@imagesavealpha( $new_img, TRUE );
break;
}
//---------------------------------------------------------
// Copy image resampled
//---------------------------------------------------------
@imagecopyresampled( $new_img, $this->image, $dst_x, $dst_y, intval( $this->_cropX ) , intval( $this->_cropY ), $new_dims['img_width'], $new_dims['img_height'], $this->cur_dimensions['width'], $this->cur_dimensions['height'] );
$this->cur_dimensions = array( 'width' => $new_dims['img_width'], 'height' => $new_dims['img_height'] );
//---------------------------------------------------------
// Don't forget the alpha blending
//---------------------------------------------------------
switch( $this->image_extension )
{
/* Even more gif work.... Bug #20826 */
case 'gif':
if( $transindex >= 0 )
{
@imagecolortransparent( $new_img, $transindex );
for( $y = 0; $y < $new_dims['img_height']; ++$y )
{
for( $x = 0; $x < $new_dims['img_width']; ++$x )
{
if( ( ( @imagecolorat( $new_img, $x, $y) >> 24 ) & 0x7F ) >= 100 )
{
@imagesetpixel( $new_img, $x, $y, $transindex );
}
}
}
}
@imagetruecolortopalette( $new_img, true, 255 );
@imagesavealpha( $new_img, false );
break;
case 'png':
@imagealphablending( $new_img, FALSE );
@imagesavealpha( $new_img, TRUE );
break;
}
/* If this is the second pass, see if we need to do a BG fill */
if ( $secondPass )
{
if ( $this->orig_dimensions['width'] < $width AND $this->orig_dimensions['height'] < $height )
{
$_x = ( $new_dims['img_width'] - $this->orig_dimensions['width'] ) / 2;
$_y = ( $new_dims['img_height'] - $this->orig_dimensions['height'] ) / 2;
$rgb = @imagecolorat( $new_img, $_x + 1, $_y + 1 );
$col = @imagecolorsforindex( $new_img, $rgb );
/* If we've an almost transparent BG, then fill with offwhite */
if ( $col['alpha'] > 120 )
{
$col = array( 'red' => '245', 'green' => '245', 'blue' => '245', 'alpha' => 0 );
}
else
{
$col['alpha'] = 100;
}
$iCol = @imagecolorallocatealpha( $new_img, $col['red'], $col['green'], $col['blue'], $col['alpha'] );
/* T */
@imagefilledrectangle( $new_img, 0, 0, $new_dims['img_width'], $_y, $iCol );
/* R */
@imagefilledrectangle( $new_img, 0, 0, $_x, $new_dims['img_height'], $iCol );
/* B */
@imagefilledrectangle( $new_img, 0, ( $_y + $this->orig_dimensions['height'] ), $new_dims['img_width'], ( ( $_y * 2 ) + $this->orig_dimensions['height'] ) , $iCol );
/* L */
@imagefilledrectangle( $new_img, ( $_x + $this->orig_dimensions['width'] ), 0, $new_dims['img_width'], $new_dims['img_height'], $iCol );
}
}
//---------------------------------------------------------
// Destroy original resource and store new resource
//---------------------------------------------------------
@imagedestroy( $this->image );
$this->image = $new_img;
return array( 'originalWidth' => $this->orig_dimensions['width'],
'originalHeight' => $this->orig_dimensions['height'],
'newWidth' => ( is_array( $canvas ) && count( $canvas ) ) ? $canvas[0] : $new_dims['img_width'],
'newHeight' => ( is_array( $canvas ) && count( $canvas ) ) ? $canvas[1] : $new_dims['img_height'] );
}
/**
* Write image to file
*
* @param string File location (including file name)
* @return @e boolean
*/
public function writeImage( $imagePath )
{
//---------------------------------------------------------
// Remove image if it exists
//---------------------------------------------------------
if( is_file( $imagePath ) )
{
@unlink( $imagePath );
}
//---------------------------------------------------------
// Write file and verify
//---------------------------------------------------------
switch( $this->image_extension )
{
case 'gif':
@imagegif( $this->image, $imagePath );
break;
case 'jpeg':
case 'jpg':
case 'jpe':
@imagejpeg( $this->image, $imagePath, $this->quality['jpg'] );
break;
case 'png':
@imagepng( $this->image, $imagePath, $this->quality['png'] );
break;
}
if ( ! is_file( $imagePath ) )
{
$this->error = 'unable_to_write_image';
return false;
}
//---------------------------------------------------------
// Chmod 777
//---------------------------------------------------------
@chmod( $imagePath, IPS_FILE_PERMISSION );
//---------------------------------------------------------
// Destroy image resource
//---------------------------------------------------------
@imagedestroy( $this->image );
return true;
}
/**
* Print image to screen
*
* @return @e void
*/
public function displayImage()
{
//---------------------------------------------------------
// Send appropriate header and output image
//---------------------------------------------------------
switch( $this->image_extension )
{
case 'gif':
@header('Content-type: image/gif');
@imagegif( $this->image );
break;
case 'jpeg':
case 'jpg':
case 'jpe':
@header('Content-Type: image/jpeg' );
@imagejpeg( $this->image, null, $this->quality['jpg'] );
break;
case 'png':
@header('Content-Type: image/png' );
@imagepng( $this->image, null, $this->quality['png'] );
break;
}
//---------------------------------------------------------
// Destroy image resource
//---------------------------------------------------------
@imagedestroy( $this->image );
exit;
}
/**
* Add watermark to image
*
* @param string Watermark image path
* @param integer [Optional] Opacity 0-100
* @return @e boolean
*/
public function addWatermark( $path, $opacity=100 )
{
//---------------------------------------------------------
// Verify input
//---------------------------------------------------------
if( !$path )
{
$this->error = 'no_watermark_path';
return false;
}
$type = strtolower( pathinfo( basename($path), PATHINFO_EXTENSION ) );
$opacity = $opacity > 100 ? 100 : ( $opacity < 0 ? 1 : $opacity );
if( !in_array( $type, $this->image_types ) )
{
$this->error = 'bad_watermark_type';
return false;
}
//---------------------------------------------------------
// Create resource from watermark and verify
//---------------------------------------------------------
switch( $type )
{
case 'gif':
$mark = imagecreatefromgif( $path );
break;
case 'jpeg':
case 'jpg':
case 'jpe':
$mark = imagecreatefromjpeg( $path );
break;
case 'png':
$mark = imagecreatefrompng( $path );
break;
}
if( !$mark )
{
$this->error = 'image_creation_failed';
return false;
}
//---------------------------------------------------------
// Alpha blending..
//---------------------------------------------------------
switch( $this->image_extension )
{
case 'jpeg':
case 'jpg':
case 'jpe':
case 'png':
@imagealphablending( $this->image, TRUE );
break;
}
//---------------------------------------------------------
// Get dimensions of watermark
//---------------------------------------------------------
$img_info = @getimagesize( $path );
$locate_x = $this->cur_dimensions['width'] - $img_info[0];
$locate_y = $this->cur_dimensions['height'] - $img_info[1];
//---------------------------------------------------------
// Merge watermark image onto original image
// @see http://us.php.net/manual/en/function.imagecopymerge.php#32393
//---------------------------------------------------------
/* PNGs like to be difficult: Bug #20788 */
if( $type == 'png' )
{
/* Create a new image */
$new_img = imagecreatetruecolor( $this->cur_dimensions['width'], $this->cur_dimensions['height'] );
/* Setup Transparency */
imagealphablending( $new_img, false );
$transparent = imagecolorallocatealpha( $new_img, 0, 0, 0, 127 );
imagefill( $new_img, 0, 0, $transparent );
imagesavealpha( $new_img, true );
imagealphablending( $new_img, true );
/* Copy the main image into the new image */
imagecopyresampled( $new_img, $this->image, 0, 0, 0, 0, $this->cur_dimensions['width'], $this->cur_dimensions['height'], $this->cur_dimensions['width'], $this->cur_dimensions['height'] );
/* Copy the watermark onto the new image */
imagecopyresampled( $new_img, $mark, $locate_x, $locate_y, 0, 0, $img_info[0], $img_info[1], $img_info[0], $img_info[1] );
/* Set the image */
$this->image = $new_img;
}
else
{
@imagecopymerge( $this->image, $mark, $locate_x, $locate_y, 0, 0, $img_info[0], $img_info[1], intval($opacity) );
}
//---------------------------------------------------------
// And alpha blending again...
//---------------------------------------------------------
switch( $this->image_extension )
{
case 'png':
@imagealphablending( $this->image, FALSE );
@imagesavealpha( $this->image, TRUE );
break;
}
//---------------------------------------------------------
// Destroy watermark image resource and return
//---------------------------------------------------------
imagedestroy( $mark );
$this->force_resize = true;
return true;
}
/**
* Add copyright text to image
*
* @param string Copyright text to add
* @param array [Optional] Text options (color, halign, valign, padding, font [1-5])
* @return @e boolean
*/
public function addCopyrightText( $text, $textOpts=array() )
{
//---------------------------------------------------------
// Verify input
//---------------------------------------------------------
if( !$text )
{
$this->error = 'no_text_for_copyright';
return false;
}
$font = $textOpts['font'] ? $textOpts['font'] : 3;
//---------------------------------------------------------
// Colors input as hex...convert to rgb
//---------------------------------------------------------
$color = $textOpts['color'] ? array(
hexdec( substr( ltrim( $textOpts['color'], '#' ), 0, 2 ) ),
hexdec( substr( ltrim( $textOpts['color'], '#' ), 2, 2 ) ),
hexdec( substr( ltrim( $textOpts['color'], '#' ), 5, 2 ) )
) : array( 255, 255, 255 );
$width = $this->cur_dimensions['width'] - 10;
$halign = ( isset($textOpts['halign']) AND in_array( $textOpts['halign'], array( 'right', 'center', 'left' ) ) )
? $textOpts['halign'] : 'right';
$valign = ( isset($textOpts['valign']) AND in_array( $textOpts['valign'], array( 'top', 'middle', 'bottom' ) ) )
? $textOpts['valign'] : 'bottom';
$padding = $textOpts['padding'] ? $textOpts['padding'] : 5;
//---------------------------------------------------------
// Get some size info and set properties
//---------------------------------------------------------
$fontwidth = imagefontwidth($font);
$fontheight = imagefontheight($font);
$margin = floor($padding / 2 );
if ( $width > 0 )
{
$maxcharsperline = floor( ($width - ($margin * 2)) / $fontwidth);
if( $maxcharsperline )
{
$text = wordwrap( $text, $maxcharsperline, "n", 1 );
}
}
$lines = explode( "n", $text );
//---------------------------------------------------------
// Top, middle or bottom?
//---------------------------------------------------------
switch( $valign )
{
case "middle":
$y = ( imagesy($this->image) - ( $fontheight * count($lines) ) ) / 2;
break;
case "bottom":
$y = imagesy($this->image) - ( ( $fontheight * count($lines) ) + $margin );
break;
default:
$y = $margin;
break;
}
//---------------------------------------------------------
// Allocate colors for text/bg
//---------------------------------------------------------
$color = imagecolorallocate( $this->image, $color[0], $color[1], $color[2] );
$rect_back = imagecolorallocate( $this->image, 0,0,0 );
//---------------------------------------------------------
// Switch on horizontal position and write text lines
//---------------------------------------------------------
switch( $halign )
{
case "right":
while( list($numl, $line) = each($lines) )
{
imagefilledrectangle( $this->image, ( imagesx($this->image) - $fontwidth * strlen($line) ) - $margin, $y, imagesx($this->image) - 1, imagesy($this->image) - 1, $rect_back );
imagestring( $this->image, $font, ( imagesx($this->image) - $fontwidth * strlen($line) ) - $margin, $y, $line, $color );
$y += $fontheight;
}
break;
case "center":
while( list($numl, $line) = each($lines) )
{
imagefilledrectangle( $this->image, floor( ( imagesx($this->image) - $fontwidth * strlen($line) ) / 2 ), $y, imagesx($this->image), imagesy($this->image), $rect_back );
imagestring( $this->image, $font, floor( ( imagesx($this->image) - $fontwidth * strlen($line) ) / 2 ), $y, $line, $color );
$y += $fontheight;
}
break;
default:
while( list($numl, $line) = each($lines) )
{
imagefilledrectangle( $this->image, $margin, $y, imagesx($this->image), imagesy($this->image), $rect_back );
imagestring( $this->image, $font, $margin, $y, $line, $color );
$y += $fontheight;
}
break;
}
$this->force_resize = true;
return true;
}
}