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, 0 deletions

diff --git a/helper.h b/helper.h
index 64dc3da..90a1ad6 100644
--- a/helper.h
+++ b/helper.h
@@ -11,6 +11,7 @@
 #include <magic.h>
 
 class QString;
+class QFileInfo;
 
 namespace Helper {
 	const QString mimeType(const QString &path);
@@ -22,6 +23,14 @@ namespace Helper {
 		public:
 			bool operator()(const QString s, const QString &part) const;
 	};
+	class SortFileInfoList : public std::binary_function<QFileInfo, QFileInfo, bool> {
+		public:
+			bool operator()(const QFileInfo &lhs, const QFileInfo &rhs) const;
+	};
+	class FileInfoListContains : public std::binary_function<QFileInfo, QString, bool> {
+		public:
+			bool operator()(const QFileInfo &info, const QString &file) const;
+	};
 }
 
 #endif