MediaWiki 1.17.0

[autoinstallsdev/mediawiki.git] / includes / ImageFunctions.php

diff --git a/includes/ImageFunctions.php b/includes/ImageFunctions.php
index 5f01ab6ef8c13d79eb71bda983f04ea4727de4f8..8eaebd26998cdb26c0de00281717ad30e77b0e5a 100644 (file)
--- a/includes/ImageFunctions.php
+++ b/includes/ImageFunctions.php
@@ -1,110 +1,9 @@
 <?php
 /**
- * Return a rounded pixel equivalent for a labeled CSS/SVG length.
- * http://www.w3.org/TR/SVG11/coords.html#UnitIdentifiers
+ * Global functions related to images
  *
- * @param $length String: CSS/SVG length.
- * @param $viewportSize: Float optional scale for percentage units...
- * @return float: length in pixels
+ * @file
  */
-function wfScaleSVGUnit( $length, $viewportSize=512 ) {
-       static $unitLength = array(
-               'px' => 1.0,
-               'pt' => 1.25,
-               'pc' => 15.0,
-               'mm' => 3.543307,
-               'cm' => 35.43307,
-               'in' => 90.0,
-               'em' => 16.0, // fake it?
-               'ex' => 12.0, // fake it?
-               ''   => 1.0, // "User units" pixels by default
-               );
-       $matches = array();
-       if( preg_match( '/^\s*(\d+(?:\.\d+)?)(em|ex|px|pt|pc|cm|mm|in|%|)\s*$/', $length, $matches ) ) {
-               $length = floatval( $matches[1] );
-               $unit = $matches[2];
-               if( $unit == '%' ) {
-                       return $length * 0.01 * $viewportSize;
-               } else {
-                       return $length * $unitLength[$unit];
-               }
-       } else {
-               // Assume pixels
-               return floatval( $length );
-       }
-}
-
-class XmlSizeFilter {
-       const DEFAULT_WIDTH = 512;
-       const DEFAULT_HEIGHT = 512;
-       var $first = true;
-       var $width = self::DEFAULT_WIDTH;
-       var $height = self::DEFAULT_HEIGHT;
-       function filter( $name, $attribs ) {
-               if( $this->first ) {
-                       $defaultWidth = self::DEFAULT_WIDTH;
-                       $defaultHeight = self::DEFAULT_HEIGHT;
-                       $aspect = 1.0;
-                       $width = null;
-                       $height = null;
-                       
-                       if( isset( $attribs['viewBox'] ) ) {
-                               // min-x min-y width height
-                               $viewBox = preg_split( '/\s+/', trim( $attribs['viewBox'] ) );
-                               if( count( $viewBox ) == 4 ) {
-                                       $viewWidth = wfScaleSVGUnit( $viewBox[2] );
-                                       $viewHeight = wfScaleSVGUnit( $viewBox[3] );
-                                       if( $viewWidth > 0 && $viewHeight > 0 ) {
-                                               $aspect = $viewWidth / $viewHeight;
-                                               $defaultHeight = $defaultWidth / $aspect;
-                                       }
-                               }
-                       }
-                       if( isset( $attribs['width'] ) ) {
-                               $width = wfScaleSVGUnit( $attribs['width'], $defaultWidth );
-                       }
-                       if( isset( $attribs['height'] ) ) {
-                               $height = wfScaleSVGUnit( $attribs['height'], $defaultHeight );
-                       }
-                       
-                       if( !isset( $width ) && !isset( $height ) ) {
-                               $width = $defaultWidth;
-                               $height = $width / $aspect;
-                       } elseif( isset( $width ) && !isset( $height ) ) {
-                               $height = $width / $aspect;
-                       } elseif( isset( $height ) && !isset( $width ) ) {
-                               $width = $height * $aspect;
-                       }
-                       
-                       if( $width > 0 && $height > 0 ) {
-                               $this->width = intval( round( $width ) );
-                               $this->height = intval( round( $height ) );
-                       }
-                       
-                       $this->first = false;
-               }
-       }
-}
-
-/**
- * Compatible with PHP getimagesize()
- * @todo support gzipped SVGZ
- * @todo check XML more carefully
- * @todo sensible defaults
- *
- * @param $filename String: full name of the file (passed to php fopen()).
- * @return array
- */
-function wfGetSVGsize( $filename ) {
-       $filter = new XmlSizeFilter();
-       $xml = new XmlTypeCheck( $filename, array( $filter, 'filter' ) );
-       if( $xml->wellFormed ) {
-               return array( $filter->width, $filter->height, 'SVG',
-                       "width=\"$filter->width\" height=\"$filter->height\"" );
-       }
-       
-       return false;
-}
 
 /**
  * Determine if an image exists on the 'bad image list'.