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