include/wx/univ/window.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/univ/window.h
   3 // Purpose:     wxWindow class which is the base class for all
   4 //              wxUniv port controls, it supports the customization of the
   5 //              window drawing and input processing.
   6 // Author:      Vadim Zeitlin
   7 // Modified by:
   8 // Created:     06.08.00
   9 // RCS-ID:      $Id$
  10 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
  11 // Licence:     wxWindows license
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_UNIV_WINDOW_H_
  15 #define _WX_UNIV_WINDOW_H_
  16
  17 #ifdef __GNUG__
  18     #pragma interface "univwindow.h"
  19 #endif
  20
  21 #include "wx/bitmap.h"      // for m_bitmapBg
  22
  23 class WXDLLEXPORT wxControlRenderer;
  24 class WXDLLEXPORT wxEventLoop;
  25 class WXDLLEXPORT wxMenu;
  26 class WXDLLEXPORT wxMenuBar;
  27 class WXDLLEXPORT wxRenderer;
  28 class WXDLLEXPORT wxScrollBar;
  29
  30 // ----------------------------------------------------------------------------
  31 // constants
  32 // ----------------------------------------------------------------------------
  33
  34 // control state flags used in wxRenderer and wxColourScheme
  35 enum
  36 {
  37     wxCONTROL_DISABLED   = 0x00000001,  // control is disabled
  38     wxCONTROL_FOCUSED    = 0x00000002,  // currently has keyboard focus
  39     wxCONTROL_PRESSED    = 0x00000004,  // (button) is pressed
  40     wxCONTROL_ISDEFAULT  = 0x00000008,  // only applies to the buttons
  41     wxCONTROL_ISSUBMENU  = wxCONTROL_ISDEFAULT, // only for menu items
  42     wxCONTROL_CURRENT    = 0x00000010,  // mouse is currently over the control
  43     wxCONTROL_SELECTED   = 0x00000020,  // selected item in e.g. listbox
  44     wxCONTROL_CHECKED    = 0x00000040,  // (check/radio button) is checked
  45     wxCONTROL_CHECKABLE  = 0x00000080,  // (menu) item can be checked
  46
  47     wxCONTROL_FLAGS_MASK = 0x000000ff,
  48
  49     // this is a pseudo flag not used directly by wxRenderer but rather by some
  50     // controls internally
  51     wxCONTROL_DIRTY      = 0x80000000
  52 };
  53
  54 // ----------------------------------------------------------------------------
  55 // wxWindow
  56 // ----------------------------------------------------------------------------
  57
  58 #if defined(__WXMSW__)
  59 #define wxWindowNative wxWindowMSW
  60 #elif defined(__WXGTK__)
  61 #define wxWindowNative wxWindowGTK
  62 #elif defined(__WXMGL__)
  63 #define wxWindowNative wxWindowMGL
  64 #elif defined(__WXX11__)
  65 #define wxWindowNative wxWindowX11
  66 #elif defined(__WXMAC__)
  67 #define wxWindowNative wxWindowMac
  68 #endif
  69
  70 class WXDLLEXPORT wxWindow : public wxWindowNative
  71 {
  72 public:
  73     // ctors and create functions
  74     // ---------------------------
  75
  76     wxWindow() { Init(); }
  77
  78     wxWindow(wxWindow *parent,
  79              wxWindowID id,
  80              const wxPoint& pos = wxDefaultPosition,
  81              const wxSize& size = wxDefaultSize,
  82              long style = 0,
  83              const wxString& name = wxPanelNameStr)
  84         : wxWindowNative(parent, id, pos, size, style | wxCLIP_CHILDREN, name)
  85         { Init(); }
  86
  87     bool Create(wxWindow *parent,
  88                 wxWindowID id,
  89                 const wxPoint& pos = wxDefaultPosition,
  90                 const wxSize& size = wxDefaultSize,
  91                 long style = 0,
  92                 const wxString& name = wxPanelNameStr);
  93
  94     // background pixmap support
  95     // -------------------------
  96
  97     virtual void SetBackground(const wxBitmap& bitmap,
  98                                int alignment = wxALIGN_CENTRE,
  99                                wxStretch stretch = wxSTRETCH_NOT);
 100
 101     const wxBitmap& GetBackgroundBitmap(int *alignment = NULL,
 102                                         wxStretch *stretch = NULL) const;
 103
 104     // scrollbars: we (re)implement it ourselves using our own scrollbars
 105     // instead of the native ones
 106     // ------------------------------------------------------------------
 107
 108     virtual void SetScrollbar(int orient,
 109                               int pos,
 110                               int page,
 111                               int range,
 112                               bool refresh = TRUE );
 113     virtual void SetScrollPos(int orient, int pos, bool refresh = TRUE);
 114     virtual int GetScrollPos(int orient) const;
 115     virtual int GetScrollThumb(int orient) const;
 116     virtual int GetScrollRange(int orient) const;
 117     virtual void ScrollWindow(int dx, int dy,
 118                               const wxRect* rect = (wxRect *) NULL);
 119
 120     // take into account the borders here
 121     virtual wxPoint GetClientAreaOrigin() const;
 122
 123     // popup menu support
 124     // ------------------
 125
 126     // NB: all menu related functions are implemented in menu.cpp
 127
 128 #if wxUSE_MENUS
 129     virtual bool DoPopupMenu(wxMenu *menu, int x, int y);
 130
 131     // this is wxUniv-specific private method to be used only by wxMenu
 132     void DismissPopupMenu();
 133 #endif // wxUSE_MENUS
 134
 135     // miscellaneous other methods
 136     // ---------------------------
 137
 138     // get the state information
 139     virtual bool IsFocused() const;
 140     virtual bool IsCurrent() const;
 141     virtual bool IsPressed() const;
 142     virtual bool IsDefault() const;
 143
 144     // return all state flags at once (combination of wxCONTROL_XXX values)
 145     int GetStateFlags() const;
 146
 147     // set the "highlighted" flag and return TRUE if it changed
 148     virtual bool SetCurrent(bool doit = TRUE);
 149
 150     // get the scrollbar (may be NULL) for the given orientation
 151     wxScrollBar *GetScrollbar(int orient) const
 152     {
 153         return orient & wxVERTICAL ? m_scrollbarVert : m_scrollbarHorz;
 154     }
 155
 156     // methods used by wxColourScheme to choose the colours for this window
 157     // --------------------------------------------------------------------
 158
 159     // return TRUE if this is a panel/canvas window which contains other
 160     // controls only
 161     virtual bool IsCanvasWindow() const { return FALSE; }
 162
 163     // return TRUE if this a container window which contains the other items:
 164     // e.g, a listbox, listctrl, treectrl, ... and FALSE if it is a monolithic
 165     // control (e.g. a button, checkbox, ...)
 166     virtual bool IsContainerWindow() const { return FALSE; }
 167
 168     // return TRUE if this control can be highlighted when the mouse is over
 169     // it (the theme decides itself whether it is really highlighted or not)
 170     virtual bool CanBeHighlighted() const { return FALSE; }
 171
 172     // return TRUE if we should use the colours/fonts returned by the
 173     // corresponding GetXXX() methods instead of the default ones
 174     bool UseBgCol() const { return m_hasBgCol; }
 175     bool UseFgCol() const { return m_hasFgCol; }
 176     bool UseFont() const { return m_hasFont; }
 177
 178     // return TRUE if this window serves as a container for the other windows
 179     // only and doesn't get any input itself
 180     virtual bool IsStaticBox() const { return FALSE; }
 181
 182     // returns the (low level) renderer to use for drawing the control by
 183     // querying the current theme
 184     wxRenderer *GetRenderer() const { return m_renderer; }
 185
 186     // scrolling helper: like ScrollWindow() except that it doesn't refresh the
 187     // uncovered window areas but returns the rectangle to update (don't call
 188     // this with both dx and dy non zero)
 189     wxRect ScrollNoRefresh(int dx, int dy, const wxRect *rect = NULL);
 190
 191     // after scrollbars are added or removed they must be refreshed by calling
 192     // this function
 193     void RefreshScrollbars();
 194
 195     // erase part of the control
 196     virtual void EraseBackground(wxDC& dc, const wxRect& rect);
 197
 198     // overridden base class methods
 199     // -----------------------------
 200
 201     // the rect coordinates are, for us, in client coords, but if no rect is
 202     // specified, the entire window is refreshed
 203     virtual void Refresh(bool eraseBackground = TRUE,
 204                          const wxRect *rect = (const wxRect *) NULL);
 205
 206     // we refresh the window when it is dis/enabled
 207     virtual bool Enable(bool enable = TRUE);
 208
 209 protected:
 210     // common part of all ctors
 211     void Init();
 212
 213     // overridden base class virtuals
 214
 215     // we deal with the scrollbars in these functions
 216     virtual void DoSetClientSize(int width, int height);
 217     virtual void DoGetClientSize(int *width, int *height) const;
 218     virtual wxHitTest DoHitTest(wxCoord x, wxCoord y) const;
 219
 220     // event handlers
 221     void OnSize(wxSizeEvent& event);
 222     void OnNcPaint(wxPaintEvent& event);
 223     void OnPaint(wxPaintEvent& event);
 224     void OnErase(wxEraseEvent& event);
 225
 226 #if wxUSE_ACCEL || wxUSE_MENUS
 227     void OnKeyDown(wxKeyEvent& event);
 228 #endif // wxUSE_ACCEL
 229
 230 #if wxUSE_MENUS
 231     void OnChar(wxKeyEvent& event);
 232     void OnKeyUp(wxKeyEvent& event);
 233 #endif // wxUSE_MENUS
 234
 235     // draw the control background, return TRUE if done
 236     virtual bool DoDrawBackground(wxDC& dc);
 237
 238     // draw the controls border
 239     virtual void DoDrawBorder(wxDC& dc, const wxRect& rect);
 240
 241     // draw the controls contents
 242     virtual void DoDraw(wxControlRenderer *renderer);
 243
 244     // calculate the best size for the client area of the window: default
 245     // implementation of DoGetBestSize() uses this method and adds the border
 246     // width to the result
 247     virtual wxSize DoGetBestClientSize() const;
 248     virtual wxSize DoGetBestSize() const;
 249
 250     // adjust the size of the window to take into account its borders
 251     wxSize AdjustSize(const wxSize& size) const;
 252
 253     // put the scrollbars along the edges of the window
 254     void PositionScrollbars();
 255
 256 #if wxUSE_MENUS
 257     // return the menubar of the parent frame or NULL
 258     wxMenuBar *GetParentFrameMenuBar() const;
 259 #endif // wxUSE_MENUS
 260
 261     // the renderer we use
 262     wxRenderer *m_renderer;
 263
 264     // background bitmap info
 265     wxBitmap  m_bitmapBg;
 266     int       m_alignBgBitmap;
 267     wxStretch m_stretchBgBitmap;
 268
 269     // is the mouse currently inside the window?
 270     bool m_isCurrent:1;
 271
 272 #ifdef __WXMSW__
 273     // override MSWWindowProc() to process WM_NCHITTEST
 274     long MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 275 #endif // __WXMSW__
 276
 277 private:
 278     // the window scrollbars
 279     wxScrollBar *m_scrollbarHorz,
 280                 *m_scrollbarVert;
 281
 282 #if wxUSE_MENUS
 283     // the current modal event loop for the popup menu we show or NULL
 284     static wxEventLoop *ms_evtLoopPopup;
 285
 286     // the last window over which Alt was pressed (used by OnKeyUp)
 287     static wxWindow *ms_winLastAltPress;
 288 #endif // wxUSE_MENUS
 289
 290     DECLARE_DYNAMIC_CLASS(wxWindow)
 291     DECLARE_EVENT_TABLE()
 292 };
 293
 294 #endif // _WX_UNIV_WINDOW_H_
 295