X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/9202d4248dd7df2f6e5eb53b4154c8297ec9b1d1..db6ca522bdfbde29c214b41435a10876ff72a0a4:/lib/gui/ewidgetdesktop.h

diff --git a/lib/gui/ewidgetdesktop.h b/lib/gui/ewidgetdesktop.h
index 1354a86b..f88efa88 100644
--- a/lib/gui/ewidgetdesktop.h
+++ b/lib/gui/ewidgetdesktop.h
@@ -8,30 +8,81 @@ class eWidget;
 class eMainloop;
 class eTimer;
 
-class eWidgetDesktop: public Object
+		/* an eWidgetDesktopCompBuffer is a composition buffer. in 
+		   immediate composition  mode, we only have one composition 
+		   buffer - the screen.
+		   in buffered mode, we have one buffer for each widget, plus
+		   the screen.
+		   
+		   even in buffered mode, we have a background region, because
+		   a window can be arbitrary shaped. the screen size acts as a bounding
+		   box in these cases. */
+
+struct eWidgetDesktopCompBuffer
 {
-public: // weil debug
+	ePoint m_position;
 	eSize m_screen_size;
 	gRegion m_dirty_region;
+	gRegion m_background_region;
 	ePtr<gDC> m_dc;
+	gRGB m_background_color;
+};
+
+class eWidgetDesktop: public Object
+{
 public:
 	eWidgetDesktop(eSize screen);
 	~eWidgetDesktop();
-	void addRootWidget(eWidget *root, int top);
+	void addRootWidget(eWidget *root);
 	void removeRootWidget(eWidget *root);
-	void recalcClipRegions();
+	
+		/* try to move widget content. */
+		/* returns -1 if there's no move support. */
+		/* call this after recalcClipRegions for that widget. */
+		/* you probably want to invalidate if -1 was returned. */
+	int movedWidget(eWidget *root);
+	
+	void recalcClipRegions(eWidget *root);
 	
 	void invalidate(const gRegion &region);
 	void paint();
 	void setDC(gDC *dc);
 	
+	void setBackgroundColor(gRGB col);
+	void setBackgroundColor(eWidgetDesktopCompBuffer *comp, gRGB col);
+	
+	void setPalette(gPixmap &pm);
+	
 	void setRedrawTask(eMainloop &ml);
+	
+	void makeCompatiblePixmap(gPixmap &pm);
+	
+	enum {
+		cmImmediate,
+		cmBuffered
+	};
+	
+	void setCompositionMode(int mode);
 private:
 	ePtrList<eWidget> m_root;
 	void calcWidgetClipRegion(eWidget *widget, gRegion &parent_visible);
+	void paintBackground(eWidgetDesktopCompBuffer *comp);
 	
 	eMainloop *m_mainloop;
 	eTimer *m_timer;
+	
+	int m_comp_mode;
+	int m_require_redraw;
+	
+	eWidgetDesktopCompBuffer m_screen;
+	
+	void createBufferForWidget(eWidget *widget);
+	void removeBufferForWidget(eWidget *widget);
+	
+	void redrawComposition(int notifed);
+	void notify();
+	
+	void clearVisibility(eWidget *widget);
 };
 
 #endif