openblt

a hobby OS from the late 90s
git clone http://frotz.net/git/openblt.git
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Window.h (1936B)

      1 #ifndef _WINDOW_H
      2 #define _WINDOW_H
      3 
      4 #include "Region.h"
      5 #include "GraphicsContext.h"
      6 
      7 class Event;
      8 
      9 class Window {
     10 public:
     11 
     12 	Window(int id, int eventPort, Renderer *renderer = 0);
     13 	~Window();
     14 	void AddChild(const Rect& frame, Window *window);
     15 	void RemoveChild(Window *window);
     16 	void MoveToFront();
     17 	inline int ID() const;
     18 
     19 	Window *ChildAtPoint(int x, int y);
     20 
     21 	Rect LocalToScreen(const Rect&) const;
     22 	Rect ScreenToLocal(const Rect&) const;
     23 
     24 	void SetVisibleRegion(const Region&);
     25 	inline const Rect& Frame() const;
     26 	inline Rect Bounds() const;
     27 
     28 	const Region& InvalidRegion() const;
     29 	const Region& ClipRegion() const;
     30 	void Invalidate(const Region&);
     31 	void Invalidate(const Rect&);
     32 	void BeginPaint(Rect &out_invalidRect);
     33 	void EndPaint();
     34 	GraphicsContext& GC();
     35 	void ResetGC();
     36 	bool IsVisible() const;
     37 	char Color() const;
     38 	void SetColor(char);
     39 	void Show();
     40 	void Hide();
     41 	void PostEvent(Event*);
     42 
     43 	void DumpChildList(int level = 0);
     44 
     45 private:
     46 	void UpdateClipRegion();
     47 	void MoveTo(long, long);
     48 	void ResizeTo(long, long);
     49 
     50 	int fID;
     51 	Window *fNextSibling;
     52 	Window **fPreviousSibling;
     53 	Window *fChildList;
     54 	Window *fParent;
     55 
     56 	Region fInvalidRegion;
     57 	Region fCurrentRedrawRegion;
     58 
     59 	// The visible region represents what part of this window is not
     60 	// obscured by siblings of my parent.  I maintain this
     61 	// when recomputing clipping for my children.
     62 	Region fVisibleRegion;
     63 
     64 	// The clip region is the visible region, minus parts of my window
     65 	// that are obscured by my children.
     66 	Region fClipRegion;
     67 
     68 	Rect fFrame;
     69 	GraphicsContext fGC;
     70 	bool fIsVisible;
     71 	bool fInRedraw;
     72 	int fEventPort;
     73 	bool fPaintMsgSent;
     74 	char fColor;
     75 };
     76 
     77 inline int Window::ID() const
     78 {
     79 	return fID;
     80 }
     81 
     82 inline const Rect& Window::Frame() const
     83 {
     84 	return fFrame;
     85 }
     86 
     87 inline Rect Window::Bounds() const
     88 {
     89 	Rect rect(fFrame);
     90 	rect.OffsetTo(0, 0);
     91 	return rect;
     92 }
     93 
     94 inline const Region& Window::InvalidRegion() const
     95 {
     96 	return fInvalidRegion;
     97 }
     98 
     99 
    100 
    101 
    102 #endif
    103