apps/window_server/Window.h

   1 #ifndef _WINDOW_H
   2 #define _WINDOW_H
   3
   4 #include "Region.h"
   5 #include "GraphicsContext.h"
   6 #include <win/Event.h>
   7 #include <win/WindowFlags.h>
   8
   9 using namespace os::gui;
  10
  11 class Window {
  12 public:
  13
  14         Window(int id, port_id eventPort, Renderer *renderer = 0);
  15         ~Window();
  16         void AddChild(const Rect& frame, Window *window, window_flags flags = WINDOW_FLAG_NONE);
  17         void RemoveChild(Window *window);
  18         void MoveToFront();
  19         inline int ID() const;
  20
  21         Window *ChildAtPoint(int x, int y);
  22
  23         Rect LocalToScreen(const Rect&) const;
  24         Rect ScreenToLocal(const Rect&) const;
  25
  26         void SetVisibleRegion(const Region&);
  27         inline const Rect& Frame() const;
  28         inline Rect Bounds() const;
  29
  30         const Region& InvalidRegion() const;
  31         const Region& ClipRegion() const;
  32         void Invalidate(const Region&);
  33         void Invalidate(const Rect&); // rect in screen coords
  34         void BeginPaint(Rect &out_invalidRect);
  35         void EndPaint();
  36         GraphicsContext& GC();
  37         void ResetGC();
  38         bool IsVisible() const;
  39         color888 Color() const;
  40         void SetColor(color888);
  41         void Show();
  42         void Hide();
  43         void PostEvent(Event*);
  44
  45         void DumpChildList(int level = 0);
  46
  47         void MoveTo(long, long);
  48         void MoveBy(long, long);
  49         void ResizeTo(long, long);
  50
  51         inline window_flags Flags() const;
  52         inline Window *GetTopLevelWindow() const;
  53
  54 private:
  55         void UpdateClipRegion();
  56
  57         int fID;
  58         Window *fNextSibling;
  59         Window **fPreviousSibling;
  60         Window *fChildList;
  61         Window *fParent;
  62         Window *fToplevelWindow;
  63         window_flags fFlags;
  64
  65         Region fInvalidRegion;
  66         Region fCurrentRedrawRegion;
  67
  68         // The visible region represents what part of this window is not
  69         // obscured by siblings of my parent.  I maintain this
  70         // when recomputing clipping for my children.
  71         Region fVisibleRegion;
  72
  73         // The clip region is the visible region, minus parts of my window
  74         // that are obscured by my children.
  75         Region fClipRegion;
  76
  77         Rect fFrame;
  78         GraphicsContext fGC;
  79         bool fIsVisible;
  80         bool fInRedraw;
  81         port_id fEventPort;
  82         bool fPaintMsgSent;
  83         color888 fColor;
  84 };
  85
  86 inline int Window::ID() const
  87 {
  88         return fID;
  89 }
  90
  91 inline const Rect& Window::Frame() const
  92 {
  93         return fFrame;
  94 }
  95
  96 inline Rect Window::Bounds() const
  97 {
  98         Rect rect(fFrame);
  99         rect.OffsetTo(0, 0);
 100         return rect;
 101 }
 102
 103 inline window_flags Window::Flags() const
 104 {
 105         return fFlags;
 106 }
 107
 108 inline Window *Window::GetTopLevelWindow() const
 109 {
 110         return fToplevelWindow;
 111 }
 112
 113 inline const Region& Window::InvalidRegion() const
 114 {
 115         return fInvalidRegion;
 116 }
 117
 118
 119
 120
 121 #endif
 122