<?php
/**
+ * Handler for SVG images.
+ *
* @file
* @ingroup Media
*/
/**
+ * Handler for SVG images.
+ *
* @ingroup Media
*/
class SvgHandler extends ImageHandler {
+ const SVG_METADATA_VERSION = 2;
+
function isEnabled() {
global $wgSVGConverters, $wgSVGConverter;
if ( !isset( $wgSVGConverters[$wgSVGConverter] ) ) {
return true;
}
+ function isVectorized( $file ) {
+ return true;
+ }
+
+ /**
+ * @param $file File
+ * @return bool
+ */
+ function isAnimatedImage( $file ) {
+ # TODO: detect animated SVGs
+ $metadata = $file->getMetadata();
+ if ( $metadata ) {
+ $metadata = $this->unpackMetadata( $metadata );
+ if( isset( $metadata['animated'] ) ) {
+ return $metadata['animated'];
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @param $image File
+ * @param $params
+ * @return bool
+ */
function normaliseParams( $image, &$params ) {
global $wgSVGMaxSize;
if ( !parent::normaliseParams( $image, $params ) ) {
return false;
}
- # Don't make an image bigger than wgMaxSVGSize
- $params['physicalWidth'] = $params['width'];
- $params['physicalHeight'] = $params['height'];
- if ( $params['physicalWidth'] > $wgSVGMaxSize ) {
- $srcWidth = $image->getWidth( $params['page'] );
- $srcHeight = $image->getHeight( $params['page'] );
- $params['physicalWidth'] = $wgSVGMaxSize;
- $params['physicalHeight'] = File::scaleHeight( $srcWidth, $srcHeight, $wgSVGMaxSize );
+ # Don't make an image bigger than wgMaxSVGSize on the smaller side
+ if ( $params['physicalWidth'] <= $params['physicalHeight'] ) {
+ if ( $params['physicalWidth'] > $wgSVGMaxSize ) {
+ $srcWidth = $image->getWidth( $params['page'] );
+ $srcHeight = $image->getHeight( $params['page'] );
+ $params['physicalWidth'] = $wgSVGMaxSize;
+ $params['physicalHeight'] = File::scaleHeight( $srcWidth, $srcHeight, $wgSVGMaxSize );
+ }
+ } else {
+ if ( $params['physicalHeight'] > $wgSVGMaxSize ) {
+ $srcWidth = $image->getWidth( $params['page'] );
+ $srcHeight = $image->getHeight( $params['page'] );
+ $params['physicalWidth'] = File::scaleHeight( $srcHeight, $srcWidth, $wgSVGMaxSize );
+ $params['physicalHeight'] = $wgSVGMaxSize;
+ }
}
return true;
}
+ /**
+ * @param $image File
+ * @param $dstPath
+ * @param $dstUrl
+ * @param $params
+ * @param int $flags
+ * @return bool|MediaTransformError|ThumbnailImage|TransformParameterError
+ */
function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
- global $wgSVGConverters, $wgSVGConverter, $wgSVGConverterPath;
-
if ( !$this->normaliseParams( $image, $params ) ) {
return new TransformParameterError( $params );
}
$clientHeight = $params['height'];
$physicalWidth = $params['physicalWidth'];
$physicalHeight = $params['physicalHeight'];
- $srcPath = $image->getPath();
+ $srcPath = $image->getLocalRefPath();
if ( $flags & self::TRANSFORM_LATER ) {
return new ThumbnailImage( $image, $dstUrl, $clientWidth, $clientHeight, $dstPath );
}
- if ( !wfMkdirParents( dirname( $dstPath ) ) ) {
+ if ( !wfMkdirParents( dirname( $dstPath ), null, __METHOD__ ) ) {
return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight,
wfMsg( 'thumbnail_dest_directory' ) );
}
-
- $status = $this->transformSvgToPng( $srcPath, $dstPath, $physicalWidth, $physicalHeight );
+
+ $status = $this->rasterize( $srcPath, $dstPath, $physicalWidth, $physicalHeight );
if( $status === true ) {
return new ThumbnailImage( $image, $dstUrl, $clientWidth, $clientHeight, $dstPath );
} else {
return $status; // MediaTransformError
}
}
-
- /*
+
+ /**
* Transform an SVG file to PNG
* This function can be called outside of thumbnail contexts
* @param string $srcPath
* @param string $dstPath
* @param string $width
* @param string $height
- * @returns TRUE/MediaTransformError
+ * @return true|MediaTransformError
*/
public function rasterize( $srcPath, $dstPath, $width, $height ) {
global $wgSVGConverters, $wgSVGConverter, $wgSVGConverterPath;
$err = false;
+ $retval = '';
if ( isset( $wgSVGConverters[$wgSVGConverter] ) ) {
- $cmd = str_replace(
- array( '$path/', '$width', '$height', '$input', '$output' ),
- array( $wgSVGConverterPath ? wfEscapeShellArg( "$wgSVGConverterPath/" ) : "",
- intval( $width ),
- intval( $height ),
- wfEscapeShellArg( $srcPath ),
- wfEscapeShellArg( $dstPath ) ),
- $wgSVGConverters[$wgSVGConverter]
- ) . " 2>&1";
- wfProfileIn( 'rsvg' );
- wfDebug( __METHOD__.": $cmd\n" );
- $err = wfShellExec( $cmd, $retval );
- wfProfileOut( 'rsvg' );
+ if ( is_array( $wgSVGConverters[$wgSVGConverter] ) ) {
+ // This is a PHP callable
+ $func = $wgSVGConverters[$wgSVGConverter][0];
+ $args = array_merge( array( $srcPath, $dstPath, $width, $height ),
+ array_slice( $wgSVGConverters[$wgSVGConverter], 1 ) );
+ if ( !is_callable( $func ) ) {
+ throw new MWException( "$func is not callable" );
+ }
+ $err = call_user_func_array( $func, $args );
+ $retval = (bool)$err;
+ } else {
+ // External command
+ $cmd = str_replace(
+ array( '$path/', '$width', '$height', '$input', '$output' ),
+ array( $wgSVGConverterPath ? wfEscapeShellArg( "$wgSVGConverterPath/" ) : "",
+ intval( $width ),
+ intval( $height ),
+ wfEscapeShellArg( $srcPath ),
+ wfEscapeShellArg( $dstPath ) ),
+ $wgSVGConverters[$wgSVGConverter]
+ ) . " 2>&1";
+ wfProfileIn( 'rsvg' );
+ wfDebug( __METHOD__.": $cmd\n" );
+ $err = wfShellExec( $cmd, $retval );
+ wfProfileOut( 'rsvg' );
+ }
}
$removed = $this->removeBadFile( $dstPath, $retval );
if ( $retval != 0 || $removed ) {
wfDebugLog( 'thumbnail', sprintf( 'thumbnail failed on %s: error %d "%s" from "%s"',
wfHostname(), $retval, trim($err), $cmd ) );
- return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $err );
+ return new MediaTransformError( 'thumbnail_error', $width, $height, $err );
}
return true;
}
- function getImageSize( $image, $path ) {
- return wfGetSVGsize( $path );
+ public static function rasterizeImagickExt( $srcPath, $dstPath, $width, $height ) {
+ $im = new Imagick( $srcPath );
+ $im->setImageFormat( 'png' );
+ $im->setBackgroundColor( 'transparent' );
+ $im->setImageDepth( 8 );
+
+ if ( !$im->thumbnailImage( intval( $width ), intval( $height ), /* fit */ false ) ) {
+ return 'Could not resize image';
+ }
+ if ( !$im->writeImage( $dstPath ) ) {
+ return "Could not write to $dstPath";
+ }
}
- function getThumbType( $ext, $mime ) {
+ /**
+ * @param $file File
+ * @param $path
+ * @param bool $metadata
+ * @return array
+ */
+ function getImageSize( $file, $path, $metadata = false ) {
+ if ( $metadata === false ) {
+ $metadata = $file->getMetaData();
+ }
+ $metadata = $this->unpackMetaData( $metadata );
+
+ if ( isset( $metadata['width'] ) && isset( $metadata['height'] ) ) {
+ return array( $metadata['width'], $metadata['height'], 'SVG',
+ "width=\"{$metadata['width']}\" height=\"{$metadata['height']}\"" );
+ }
+ }
+
+ function getThumbType( $ext, $mime, $params = null ) {
return array( 'png', 'image/png' );
}
+ /**
+ * @param $file File
+ * @return string
+ */
function getLongDesc( $file ) {
global $wgLang;
return wfMsgExt( 'svg-long-desc', 'parseinline',
$wgLang->formatNum( $file->getHeight() ),
$wgLang->formatSize( $file->getSize() ) );
}
+
+ function getMetadata( $file, $filename ) {
+ try {
+ $metadata = SVGMetadataExtractor::getMetadata( $filename );
+ } catch( Exception $e ) {
+ // Broken file?
+ wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
+ return '0';
+ }
+ $metadata['version'] = self::SVG_METADATA_VERSION;
+ return serialize( $metadata );
+ }
+
+ function unpackMetadata( $metadata ) {
+ wfSuppressWarnings();
+ $unser = unserialize( $metadata );
+ wfRestoreWarnings();
+ if ( isset( $unser['version'] ) && $unser['version'] == self::SVG_METADATA_VERSION ) {
+ return $unser;
+ } else {
+ return false;
+ }
+ }
+
+ function getMetadataType( $image ) {
+ return 'parsed-svg';
+ }
+
+ function isMetadataValid( $image, $metadata ) {
+ return $this->unpackMetadata( $metadata ) !== false;
+ }
+
+ function visibleMetadataFields() {
+ $fields = array( 'title', 'description', 'animated' );
+ return $fields;
+ }
+
+ /**
+ * @param $file File
+ * @return array|bool
+ */
+ function formatMetadata( $file ) {
+ $result = array(
+ 'visible' => array(),
+ 'collapsed' => array()
+ );
+ $metadata = $file->getMetadata();
+ if ( !$metadata ) {
+ return false;
+ }
+ $metadata = $this->unpackMetadata( $metadata );
+ if ( !$metadata ) {
+ return false;
+ }
+ unset( $metadata['version'] );
+ unset( $metadata['metadata'] ); /* non-formatted XML */
+
+ /* TODO: add a formatter
+ $format = new FormatSVG( $metadata );
+ $formatted = $format->getFormattedData();
+ */
+
+ // Sort fields into visible and collapsed
+ $visibleFields = $this->visibleMetadataFields();
+
+ // Rename fields to be compatible with exif, so that
+ // the labels for these fields work.
+ $conversion = array( 'width' => 'imagewidth',
+ 'height' => 'imagelength',
+ 'description' => 'imagedescription',
+ 'title' => 'objectname',
+ );
+ foreach ( $metadata as $name => $value ) {
+ $tag = strtolower( $name );
+ if ( isset( $conversion[$tag] ) ) {
+ $tag = $conversion[$tag];
+ }
+ self::addMeta( $result,
+ in_array( $tag, $visibleFields ) ? 'visible' : 'collapsed',
+ 'exif',
+ $tag,
+ $value
+ );
+ }
+ return $result;
+ }
}
dépôts / lhc / web / wiklou.git / blobdiff