Use image dimmentions from metadata as a fallback

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
(cherry picked from commit 985d8126df)

src/gvcore/filethumbnailviewitem.cpp

@@ -235,11 +235,23 @@ void FileThumbnailViewItem::updateLines() {
 		mLines.append( new CroppedLine(this, TimeUtils::formatTime(time)) );
 	}
 	if (showImageSize) {
-		TQString txt;
+		TQSize sz;
 		if (mImageSize.isValid()) {
-			txt=TQString::number(mImageSize.width())+"x"+TQString::number(mImageSize.height());
+			sz=mImageSize;
+		} else {
+			const KFileMetaInfo& info = mFileItem->metaInfo(/*autogen=*/false);
+			if (info.isValid()) {
+				sz = info.value("Dimensions").toSize();
+			}
+		}
+		if (sz.isValid()) {
+			TQString txt = TQString::number(sz.width())+"x"+TQString::number(sz.height());
+			mLines.append( new CroppedLine(this, txt) );
+		} else if ( iconView()->itemTextPos()==TQIconView::Right) {
+			// add empty line for they would nicely alligned;
+			// for text at the bottom it doesn't look that nice
+			mLines.append( new CroppedLine(this, TQString()));
 		}
-		mLines.append( new CroppedLine(this, txt) );
 	}
 	if (showFilesize) {
 		mLines.append( new CroppedLine(this, TDEIO::convertSize(mFileItem->size())) );