X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fcanvas.h;h=9a78095eacea972c62543eafe57028edc0e39d21;hb=1f004d22ca7bd7a98a3bf02b12ec5b1adece92f2;hp=c5d53703a791cd34d9e6e6bd5b432ebcf04b9875;hpb=e9a3c57c8d3bb4d79e76a4c3942f86a66d3c267e;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index c5d53703..9a78095e 100644
--- 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.
@@ -224,10 +226,7 @@ public:
 
 private:
 	void get_scrollbars(EDL *edl,
-		int &canvas_x,
-		int &canvas_y,
-		int &canvas_w,
-		int &canvas_h);
+		int &canvas_x, int &canvas_y, int &canvas_w, int &canvas_h);
 	Mutex *canvas_lock;
 };
 
@@ -236,10 +235,7 @@ class CanvasOutput : public BC_SubWindow
 {
 public:
 	CanvasOutput(Canvas *canvas,
-        int x,
-        int y,
-        int w,
-        int h);
+	        int x, int y, int w, int h);
 	~CanvasOutput();
 
 	int cursor_leave_event();
@@ -258,9 +254,7 @@ public:
 class CanvasFullScreen : public BC_FullScreen
 {
 public:
-	CanvasFullScreen(Canvas *canvas,
-        int w,
-        int h);
+	CanvasFullScreen(Canvas *canvas, int w, int h);
 	~CanvasFullScreen();
 
 	Canvas *canvas;