Implemented PictureViewer class

Don't call an external program for showing a picture. When an image is
doubleclicked a new windows shows the picture. Pictures can still be
opened in an exteral program by using the "Open with..." context menu
item.

1 files changed, 9 insertions, 1 deletions

diff --git a/helper.cpp b/helper.cpp
index 1b8640b..d03c383 100644
--- a/helper.cpp
+++ b/helper.cpp
@@ -117,8 +117,16 @@ namespace Helper {
 		return retval;
 	}
 
-	bool StringListContains::operator()(const QString s, const QString &part) const{
+	bool StringListContains::operator()(const QString s, const QString &part) const {
 		return s.contains(part);
 	}
+
+	bool SortFileInfoList::operator ()(const QFileInfo &lhs, const QFileInfo &rhs) const {
+		return lhs.fileName().toLower() < rhs.fileName().toLower();
+	}
+
+	bool FileInfoListContains::operator ()(const QFileInfo &info, const QString &file) const {
+		return info.fileName() == file;
+	}
 }