Act on doubleClick in FileTreeWidget

When doubleclicking a picture in FileTreeWidget the pictureViewer
is shown. Doubleclicking a movie file launches the default movie
player.

Since PictureViewer is now used in FileSystemWidget and
ArchiveTreeView a global instance is needed. The appropriate place
for this is a singleton. Since we already had a singleton for
QAbstractItemModels I renamed it to SmGlobals and added a function
to return a PictureViewer object. Renaming it was quite easy
thanks to QtCreator's ability to rename variable names.

1 files changed, 33 insertions, 0 deletions

diff --git a/smglobals.h b/smglobals.h
new file mode 100644
index 0000000..50db16a
--- /dev/null
+++ b/smglobals.h
@@ -0,0 +1,33 @@
+/*
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version
+  2 of the License, or (at your option) any later version.
+*/
+
+#ifndef SMUBERMODELSINGLETON_H
+#define SMUBERMODELSINGLETON_H
+
+#include <QHash>
+
+class QAbstractItemModel;
+class PictureViewer;
+
+class SmGlobals : public QObject {
+	Q_OBJECT
+	public:
+		~SmGlobals();
+		static SmGlobals *instance();
+		QAbstractItemModel *model(const QString &which);
+		PictureViewer *pictureViewer();
+
+	private:
+		SmGlobals();
+		SmGlobals(const SmGlobals &other);
+		SmGlobals &operator=(const SmGlobals &other);
+		static SmGlobals *mInstance;
+		QHash<QString, QAbstractItemModel*> mModels;
+		PictureViewer *mPictureViewer;
+};
+
+#endif