cinelerra/mainundo.h

   1 #ifndef MAINUNDO_H
   2 #define MAINUNDO_H
   3
   4
   5 #include "mwindow.inc"
   6 #include "undostack.h"
   7
   8 #include <stdint.h>
   9
  10
  11 class MainUndoStackItem;
  12
  13
  14 class MainUndo
  15 {
  16 public:
  17         MainUndo(MWindow *mwindow);
  18         ~MainUndo();
  19
  20    // Use this function for UndoStackItem subclasses with custom
  21    // undo and redo functions.  All fields including description must
  22    // be populated before calling this function.
  23    void push_undo_item(UndoStackItem *item);
  24
  25    // Use the following functions for the default save/restore undo method
  26         void update_undo_before(char *description, uint32_t load_flags);
  27         void update_undo_after();
  28
  29         int undo();
  30         int redo();
  31
  32 private:
  33         UndoStack undo_stack;
  34         MainUndoStackItem* new_entry;   // for setting the after buffer
  35         MWindow *mwindow;
  36         int undo_before_updated;
  37 };
  38
  39 #endif