gui: experimental Z order for root widgets

[enigma2.git] / lib / gui / ewidgetdesktop.h

diff --git a/lib/gui/ewidgetdesktop.h b/lib/gui/ewidgetdesktop.h
index c917e36a6f55cf294fad7598e257d64d55c775e8..f88efa8823552cec5deb2baaa1870e28c1b8a706 100644 (file)
--- a/lib/gui/ewidgetdesktop.h
+++ b/lib/gui/ewidgetdesktop.h
@@ -8,38 +8,81 @@ class eWidget;
 class eMainloop;
 class eTimer;
 
 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;
        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();
 public:
        eWidgetDesktop(eSize screen);
        ~eWidgetDesktop();

-       void addRootWidget(eWidget *root, int top);
+       void addRootWidget(eWidget *root);

        void removeRootWidget(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 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);
        
        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);
 private:
        ePtrList<eWidget> m_root;
        void calcWidgetClipRegion(eWidget *widget, gRegion &parent_visible);

+       void paintBackground(eWidgetDesktopCompBuffer *comp);

        
        eMainloop *m_mainloop;
        eTimer *m_timer;
        
        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
 };
 
 #endif