includes/media/XCF.php

   1 <?php
   2 /**
   3  * Handler for the Gimp's native file format
   4  *
   5  * @file
   6  * @ingroup Media
   7  */
   8
   9 /**
  10  * Handler for the Gimp's native file format; getimagesize() doesn't
  11  * support these files
  12  *
  13  * @ingroup Media
  14  */
  15 class XCFHandler extends BitmapHandler {
  16
  17         /**
  18          * Render files as PNG
  19          *
  20          * @param $ext
  21          * @param $mime
  22          * @param $params
  23          * @return array
  24          */
  25         function getThumbType( $ext, $mime, $params = null ) {
  26                 return array( 'png', 'image/png' );
  27         }
  28
  29         /**
  30          * Get width and height from the bmp header.
  31          *
  32          * @param $image
  33          * @param $filename
  34          * @return array
  35          */
  36         function getImageSize( $image, $filename ) {
  37                 return self::getXCFMetaData( $filename );
  38         }
  39
  40         static function getXCFMetaData( $filename ) {
  41                 global $wgImageMagickIdentifyCommand;
  42
  43                 $md = false;
  44                 $cmd = wfEscapeShellArg( $wgImageMagickIdentifyCommand ) . ' -verbose ' . wfEscapeShellArg( $filename );
  45                 wfDebug( __METHOD__ . ": Running $cmd \n" );
  46                 $retval = '';
  47                 $return = wfShellExec( $cmd, $retval );
  48
  49                 if( $retval == 0 ) {
  50                         $colorspace = preg_match_all( '/ *Colorspace: RGB/', $return, $match );
  51                         $frameCount = preg_match_all( '/ *Geometry: ([0-9]+x[0-9]+)\+[+0-9]*/', $return, $match );
  52                         wfDebug( __METHOD__ . ": Got $frameCount matches\n" );
  53
  54                         /* if( $frameCount == 1 ) { */
  55                         /*      preg_match( '/([0-9]+)x([0-9]+)/sm', $match[1][0], $m ); */
  56                         /*      $sizeX = $m[1]; */
  57                         /*      $sizeY = $m[2]; */
  58                         /* } else { */
  59                                 $sizeX = 0;
  60                                 $sizeY = 0;
  61
  62                                 foreach( $match[1] as $res ) {
  63                                         preg_match( '/([0-9]+)x([0-9]+)/sm', $res, $m );
  64                                         if( $m[1] > $sizeX ) {
  65                                                 $sizeX = $m[1];
  66                                         }
  67                                         if( $m[2] > $sizeY ) {
  68                                                 $sizeY = $m[2];
  69                                         }
  70                                 }
  71                         /* } */
  72
  73                         wfDebug( __METHOD__ . ": Found $sizeX x $sizeY x $frameCount \n" );
  74                         $md['frameCount'] = $frameCount;
  75                         $md[0] = $sizeX;
  76                         $md[1] = $sizeY;
  77                         $md[2] = null;
  78                         $md[3] = "height=\"$sizeY\" width=\"$sizeX\"";
  79                         $md['mime'] = 'image/x-xcf';
  80                         $md['channels'] = $colorspace == 1 ? 3 : 4;
  81                 }
  82                 return $md;
  83         }
  84
  85         /**
  86          * Must use "im" for XCF
  87          *
  88          * @return string
  89          */
  90         protected static function getScalerType( $dstPath, $checkDstPath = true ) {
  91                 return "im";
  92         }
  93 }