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 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 calcWidgetClipRegion(eWidgetDesktopCompBuffer *comp, 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);
};
#endif