add olaf de.po, opengl bg clr, asset drag select tweak

[goodguy/history.git] / cinelerra-5.1 / cinelerra / canvas.h

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index c5d53703a791cd34d9e6e6bd5b432ebcf04b9875..aa4879a125e28e34d763e1ab419061f6ebdaa08f 100644 (file)
--- a/cinelerra-5.1/cinelerra/canvas.h
+++ b/cinelerra-5.1/cinelerra/canvas.h
@@ -97,6 +97,7 @@ public:
        virtual int button_release_event() { return 0; };
        virtual int button_press_event();
        virtual int cursor_motion_event() { return 0; };
+       virtual int need_overlays() { return 1; }
        virtual void draw_overlays() { };
        virtual void toggle_controls() { } ;
        virtual int get_cwindow_controls() { return 0; };
@@ -146,6 +147,7 @@ public:
        void update_refresh(VideoDevice *device, VFrame *output_frame);
 // Redraws the refresh_frame
        virtual void draw_refresh(int flush = 1) {};
+       virtual void clear(int flush=1);
 
 // Get top left offset of canvas relative to output.
 // Normally negative.  Can be positive if output is smaller than canvas.