<?php
+/**
+ * Handler for DjVu images
+ *
+ * @file
+ * @ingroup Media
+ */
/**
- * @addtogroup Media
+ * Handler for DjVu images
+ *
+ * @ingroup Media
*/
class DjVuHandler extends ImageHandler {
+
+ /**
+ * @return bool
+ */
function isEnabled() {
global $wgDjvuRenderer, $wgDjvuDump, $wgDjvuToXML;
if ( !$wgDjvuRenderer || ( !$wgDjvuDump && !$wgDjvuToXML ) ) {
}
}
- function mustRender() { return true; }
- function isMultiPage() { return true; }
+ /**
+ * @param $file
+ * @return bool
+ */
+ function mustRender( $file ) {
+ return true;
+ }
+
+ /**
+ * @param $file
+ * @return bool
+ */
+ function isMultiPage( $file ) {
+ return true;
+ }
+ /**
+ * @return array
+ */
+ function getParamMap() {
+ return array(
+ 'img_width' => 'width',
+ 'img_page' => 'page',
+ );
+ }
+
+ /**
+ * @param $name
+ * @param $value
+ * @return bool
+ */
function validateParam( $name, $value ) {
if ( in_array( $name, array( 'width', 'height', 'page' ) ) ) {
if ( $value <= 0 ) {
}
}
+ /**
+ * @param $params
+ * @return bool|string
+ */
function makeParamString( $params ) {
$page = isset( $params['page'] ) ? $params['page'] : 1;
if ( !isset( $params['width'] ) ) {
return "page{$page}-{$params['width']}px";
}
+ /**
+ * @param $str
+ * @return array|bool
+ */
function parseParamString( $str ) {
$m = false;
if ( preg_match( '/^page(\d+)-(\d+)px$/', $str, $m ) ) {
}
}
+ /**
+ * @param $params
+ * @return array
+ */
function getScriptParams( $params ) {
return array(
'width' => $params['width'],
);
}
+ /**
+ * @param $image File
+ * @param $dstPath
+ * @param $dstUrl
+ * @param $params
+ * @param int $flags
+ * @return MediaTransformError|ThumbnailImage|TransformParameterError
+ */
function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
global $wgDjvuRenderer, $wgDjvuPostProcessor;
- // Fetch XML and check it, to give a more informative error message than the one which
+ // Fetch XML and check it, to give a more informative error message than the one which
// normaliseParams will inevitably give.
$xml = $image->getMetadata();
if ( !$xml ) {
- return new MediaTransformError( 'thumbnail_error', @$params['width'], @$params['height'],
+ $width = isset( $params['width'] ) ? $params['width'] : 0;
+ $height = isset( $params['height'] ) ? $params['height'] : 0;
+ return new MediaTransformError( 'thumbnail_error', $width, $height,
wfMsg( 'djvu_no_xml' ) );
}
-
+
if ( !$this->normaliseParams( $image, $params ) ) {
return new TransformParameterError( $params );
}
$width = $params['width'];
$height = $params['height'];
- $srcPath = $image->getImagePath();
+ $srcPath = $image->getLocalRefPath();
$page = $params['page'];
if ( $page > $this->pageCount( $image ) ) {
return new MediaTransformError( 'thumbnail_error', $width, $height, wfMsg( 'djvu_page_error' ) );
}
-
+
if ( $flags & self::TRANSFORM_LATER ) {
- return new ThumbnailImage( $dstUrl, $width, $height, $dstPath );
+ return new ThumbnailImage( $image, $dstUrl, $width, $height, $dstPath, $page );
}
- if ( !wfMkdirParents( dirname( $dstPath ) ) ) {
+ if ( !wfMkdirParents( dirname( $dstPath ), null, __METHOD__ ) ) {
return new MediaTransformError( 'thumbnail_error', $width, $height, wfMsg( 'thumbnail_dest_directory' ) );
}
- # Use a subshell (brackets) to aggregate stderr from both pipeline commands
+ # Use a subshell (brackets) to aggregate stderr from both pipeline commands
# before redirecting it to the overall stdout. This works in both Linux and Windows XP.
- $cmd = '(' . wfEscapeShellArg( $wgDjvuRenderer ) . " -format=ppm -page={$page} -size={$width}x{$height} " .
+ $cmd = '(' . wfEscapeShellArg( $wgDjvuRenderer ) . " -format=ppm -page={$page}" .
+ " -size={$params['physicalWidth']}x{$params['physicalHeight']} " .
wfEscapeShellArg( $srcPath );
if ( $wgDjvuPostProcessor ) {
$cmd .= " | {$wgDjvuPostProcessor}";
$cmd .= ' > ' . wfEscapeShellArg($dstPath) . ') 2>&1';
wfProfileIn( 'ddjvu' );
wfDebug( __METHOD__.": $cmd\n" );
+ $retval = '';
$err = wfShellExec( $cmd, $retval );
wfProfileOut( 'ddjvu' );
wfHostname(), $retval, trim($err), $cmd ) );
return new MediaTransformError( 'thumbnail_error', $width, $height, $err );
} else {
- return new ThumbnailImage( $dstUrl, $width, $height, $dstPath );
+ return new ThumbnailImage( $image, $dstUrl, $width, $height, $dstPath, $page );
}
}
/**
* Cache an instance of DjVuImage in an Image object, return that instance
+ *
+ * @return DjVuImage
*/
function getDjVuImage( $image, $path ) {
if ( !$image ) {
/**
* Cache a document tree for the DjVu XML metadata
+ * @param $image File
+ * @param $gettext Boolean: DOCUMENT (Default: false)
+ * @return bool
*/
- function getMetaTree( $image ) {
+ function getMetaTree( $image , $gettext = false ) {
if ( isset( $image->dejaMetaTree ) ) {
return $image->dejaMetaTree;
}
wfSuppressWarnings();
try {
- $image->dejaMetaTree = new SimpleXMLElement( $metadata );
- } catch( Exception $e ) {
- wfDebug( "Bogus multipage XML metadata on '$image->name'\n" );
// Set to false rather than null to avoid further attempts
$image->dejaMetaTree = false;
+ $image->djvuTextTree = false;
+ $tree = new SimpleXMLElement( $metadata );
+ if( $tree->getName() == 'mw-djvu' ) {
+ foreach($tree->children() as $b){
+ if( $b->getName() == 'DjVuTxt' ) {
+ $image->djvuTextTree = $b;
+ }
+ elseif ( $b->getName() == 'DjVuXML' ) {
+ $image->dejaMetaTree = $b;
+ }
+ }
+ } else {
+ $image->dejaMetaTree = $tree;
+ }
+ } catch( Exception $e ) {
+ wfDebug( "Bogus multipage XML metadata on '{$image->getName()}'\n" );
}
wfRestoreWarnings();
wfProfileOut( __METHOD__ );
- return $image->dejaMetaTree;
+ if( $gettext ) {
+ return $image->djvuTextTree;
+ } else {
+ return $image->dejaMetaTree;
+ }
}
function getImageSize( $image, $path ) {
return $this->getDjVuImage( $image, $path )->getImageSize();
}
- function getThumbType( $ext, $mime ) {
+ function getThumbType( $ext, $mime, $params = null ) {
global $wgDjvuOutputExtension;
static $mime;
if ( !isset( $mime ) ) {
return false;
}
}
-}
-?>
+ function getPageText( $image, $page ){
+ $tree = $this->getMetaTree( $image, true );
+ if ( !$tree ) {
+ return false;
+ }
+
+ $o = $tree->BODY[0]->PAGE[$page-1];
+ if ( $o ) {
+ $txt = $o['value'];
+ return $txt;
+ } else {
+ return false;
+ }
+
+ }
+
+}
dépôts / lhc / web / wiklou.git / blobdiff