introduced some comments for source navigation

1 files changed, 22 insertions, 0 deletions

diff --git a/tikzit/src/gui/undocommands.h b/tikzit/src/gui/undocommands.h
new file mode 100644
index 0000000..bbdf6c3
--- /dev/null
+++ b/tikzit/src/gui/undocommands.h
@@ -0,0 +1,22 @@
+/**
+  * These classes store the data required to undo/redo a single UI action.
+  */
+
+#ifndef UNDOCOMMANDS_H
+#define UNDOCOMMANDS_H
+
+#include "tikzscene.h"
+
+#include <QUndoCommand>
+
+class MoveCommand : public QUndoCommand
+{
+public:
+    explicit MoveCommand(TikzScene *scene, QUndoCommand *parent = 0);
+    void undo() override;
+    void redo() override;
+private:
+    TikzScene *_scene;
+};
+
+#endif // UNDOCOMMANDS_H