include/wx/msw/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        window.h
   3 // Purpose:     wxWindow class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_WINDOW_H_
  13 #define _WX_WINDOW_H_
  14
  15 // ---------------------------------------------------------------------------
  16 // headers
  17 // ---------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma interface "window.h"
  21 #endif
  22
  23 // windows.h #defines the following identifiers which are also used in wxWin
  24 #ifdef GetCharWidth
  25     #undef GetCharWidth
  26 #endif
  27
  28 #ifdef FindWindow
  29     #undef FindWindow
  30 #endif
  31
  32 // VZ: apparently some version of Windows send extra mouse move messages after
  33 //     a mouse click. My tests under NT 4.0 and 95 didn't show it so I'm
  34 //     tempted to think that it was just an effect of a poor mouse and so the
  35 //     code to work around this is currently disabled - just define this as 1
  36 //     to reenable it
  37 #define wxUSE_MOUSEEVENT_HACK 0
  38
  39 // ---------------------------------------------------------------------------
  40 // forward declarations
  41 // ---------------------------------------------------------------------------
  42
  43 class WXDLLEXPORT wxButton;
  44
  45 // ---------------------------------------------------------------------------
  46 // constants
  47 // ---------------------------------------------------------------------------
  48
  49 // FIXME does anybody use those? they're unused by wxWindows...
  50 enum
  51 {
  52     wxKEY_SHIFT = 1,
  53     wxKEY_CTRL  = 2
  54 };
  55
  56 // ---------------------------------------------------------------------------
  57 // wxWindow declaration for MSW
  58 // ---------------------------------------------------------------------------
  59 class WXDLLEXPORT wxWindow : public wxWindowBase
  60 {
  61     DECLARE_DYNAMIC_CLASS(wxWindow);
  62
  63 public:
  64     wxWindow() { Init(); }
  65
  66     wxWindow(wxWindow *parent,
  67              wxWindowID id,
  68              const wxPoint& pos = wxDefaultPosition,
  69              const wxSize& size = wxDefaultSize,
  70              long style = 0,
  71              const wxString& name = wxPanelNameStr)
  72     {
  73         Init();
  74         Create(parent, id, pos, size, style, name);
  75     }
  76
  77     virtual ~wxWindow();
  78
  79     bool Create(wxWindow *parent,
  80                 wxWindowID id,
  81                 const wxPoint& pos = wxDefaultPosition,
  82                 const wxSize& size = wxDefaultSize,
  83                 long style = 0,
  84                 const wxString& name = wxPanelNameStr);
  85
  86     // implement base class pure virtuals
  87     virtual void Raise();
  88     virtual void Lower();
  89
  90     virtual bool Show( bool show = TRUE );
  91     virtual bool Enable( bool enable = TRUE );
  92
  93     virtual void SetFocus();
  94
  95     virtual bool Reparent( wxWindow *newParent );
  96
  97     virtual void WarpPointer(int x, int y);
  98     virtual void CaptureMouse();
  99     virtual void ReleaseMouse();
 100
 101     virtual void Refresh( bool eraseBackground = TRUE,
 102                           const wxRect *rect = (const wxRect *) NULL );
 103     virtual void Clear();
 104
 105     virtual bool SetCursor( const wxCursor &cursor );
 106     virtual bool SetFont( const wxFont &font );
 107
 108     virtual int GetCharHeight() const;
 109     virtual int GetCharWidth() const;
 110     virtual void GetTextExtent(const wxString& string,
 111                                int *x, int *y,
 112                                int *descent = (int *) NULL,
 113                                int *externalLeading = (int *) NULL,
 114                                const wxFont *theFont = (const wxFont *) NULL)
 115                                const;
 116
 117     virtual void ClientToScreen( int *x, int *y ) const;
 118     virtual void ScreenToClient( int *x, int *y ) const;
 119     wxPoint ClientToScreen(const wxPoint& pt) const
 120         { int x = pt.x; int y = pt.y; ClientToScreen(& x, & y); return wxPoint(x, y); }
 121     wxPoint ScreenToClient(const wxPoint& pt) const
 122         { int x = pt.x; int y = pt.y; ScreenToClient(& x, & y); return wxPoint(x, y); }
 123
 124     virtual bool PopupMenu( wxMenu *menu, int x, int y );
 125
 126     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
 127                                int range, bool refresh = TRUE );
 128     virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
 129     virtual int GetScrollPos( int orient ) const;
 130     virtual int GetScrollThumb( int orient ) const;
 131     virtual int GetScrollRange( int orient ) const;
 132     virtual void ScrollWindow( int dx, int dy,
 133                                const wxRect* rect = (wxRect *) NULL );
 134
 135 #if wxUSE_DRAG_AND_DROP
 136     virtual void SetDropTarget( wxDropTarget *dropTarget );
 137 #endif // wxUSE_DRAG_AND_DROP
 138
 139     // Accept files for dragging
 140     virtual void DragAcceptFiles(bool accept);
 141
 142 #if WXWIN_COMPATIBILITY
 143     // Set/get scroll attributes
 144     virtual void SetScrollRange(int orient, int range, bool refresh = TRUE);
 145     virtual void SetScrollPage(int orient, int page, bool refresh = TRUE);
 146     virtual int OldGetScrollRange(int orient) const;
 147     virtual int GetScrollPage(int orient) const;
 148 #endif // WXWIN_COMPATIBILITY
 149
 150     // caret manipulation (MSW only)
 151     virtual void CreateCaret(int w, int h);
 152     virtual void CreateCaret(const wxBitmap *bitmap);
 153     virtual void DestroyCaret();
 154     virtual void ShowCaret(bool show);
 155     virtual void SetCaretPos(int x, int y);
 156     virtual void GetCaretPos(int *x, int *y) const;
 157
 158     // event handlers (FIXME: shouldn't they be inside WXWIN_COMPATIBILITY?)
 159         // Handle a control command
 160     virtual void OnCommand(wxWindow& win, wxCommandEvent& event);
 161
 162         // Override to define new behaviour for default action (e.g. double
 163         // clicking on a listbox)
 164     virtual void OnDefaultAction(wxControl *initiatingItem);
 165
 166     // Native resource loading (implemented in src/msw/nativdlg.cpp)
 167     // FIXME: should they really be all virtual?
 168     virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
 169     virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
 170     virtual wxWindow* GetWindowChild1(wxWindowID id);
 171     virtual wxWindow* GetWindowChild(wxWindowID id);
 172
 173     // implementation from now on
 174     // --------------------------
 175
 176     // simple accessors
 177     // ----------------
 178
 179     WXHWND GetHWND() const { return m_hWnd; }
 180     void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
 181     virtual WXWidget GetHandle() const { return GetHWND(); }
 182
 183     bool GetUseCtl3D() const { return m_useCtl3D; }
 184     bool GetTransparentBackground() const { return m_backgroundTransparent; }
 185     void SetTransparent(bool t = TRUE) { m_backgroundTransparent = t; }
 186
 187     // event handlers
 188     // --------------
 189     void OnEraseBackground(wxEraseEvent& event);
 190     void OnIdle(wxIdleEvent& event);
 191
 192     // a window may have a default button
 193     // TODO move into wxPanel and/or wxFrame
 194     wxButton *GetDefaultItem() const { return m_btnDefault; }
 195     void SetDefaultItem(wxButton *btn) { m_btnDefault = btn; }
 196
 197 public:
 198     // For implementation purposes - sometimes decorations make the client area
 199     // smaller
 200     virtual wxPoint GetClientAreaOrigin() const;
 201
 202     // Makes an adjustment to the window position (for example, a frame that has
 203     // a toolbar that it manages itself).
 204     virtual void AdjustForParentClientOrigin(int& x, int& y, int sizeFlags);
 205
 206     // Windows subclassing
 207     void SubclassWin(WXHWND hWnd);
 208     void UnsubclassWin();
 209     virtual bool MSWCommand(WXUINT param, WXWORD id);
 210
 211     WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
 212     void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
 213
 214     virtual wxWindow *FindItem(int id) const;
 215     virtual wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = FALSE) const ;
 216     virtual void PreDelete(WXHDC dc);              // Allows system cleanup
 217
 218     // Make a Windows extended style from the given wxWindows window style
 219     virtual WXDWORD MakeExtendedStyle(long style, bool eliminateBorders = TRUE);
 220     // Determine whether 3D effects are wanted
 221     virtual WXDWORD Determine3DEffects(WXDWORD defaultBorderStyle, bool *want3D);
 222
 223     // MSW only: TRUE if this control is part of the main control
 224     virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return FALSE; };
 225
 226     wxObject *GetChild(int number) const ;
 227
 228     // returns TRUE if the window has been created
 229     bool MSWCreate(int id,
 230                    wxWindow *parent,
 231                    const char *wclass,
 232                    wxWindow *wx_win,
 233                    const char *title,
 234                    int x, int y, int width, int height,
 235                    WXDWORD style,
 236                    const char *dialog_template = NULL,
 237                    WXDWORD exendedStyle = 0);
 238
 239     // Actually defined in wx_canvs.cc since requires wxCanvas declaration
 240     virtual void MSWDeviceToLogical(float *x, float *y) const ;
 241
 242     // Create an appropriate wxWindow from a HWND
 243     virtual wxWindow* CreateWindowFromHWND(wxWindow* parent, WXHWND hWnd);
 244
 245     // Make sure the window style reflects the HWND style (roughly)
 246     virtual void AdoptAttributesFromHWND();
 247
 248     // Setup background and foreground colours correctly
 249     virtual void SetupColours();
 250
 251     // ------------------------------------------------------------------------
 252     // internal handlers for MSW messages: all handlers return a boolen value:
 253     // TRUE means that the handler processed the event and FALSE that it didn't
 254     // ------------------------------------------------------------------------
 255
 256     // TODO: all this should go away, overriding MSWWindowProc() is enough to
 257     //       implement this functionality
 258     virtual bool MSWOnCreate(WXLPCREATESTRUCT cs, bool *mayCreate);
 259     virtual bool MSWOnPaint();
 260     virtual bool MSWOnEraseBkgnd(WXHDC pDC);
 261     virtual bool MSWOnSize(int x, int y, WXUINT flag);
 262
 263     virtual bool MSWOnQueryDragIcon(WXHICON *hIcon);
 264     virtual bool MSWOnWindowPosChanging(void *lpPos);
 265
 266     // both horizontal and vertical
 267     virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
 268                              WXWORD pos, WXHWND control);
 269
 270     virtual bool MSWOnCommand(WXWORD id, WXWORD cmd, WXHWND control);
 271     virtual bool MSWOnSysCommand(WXWPARAM wParam, WXLPARAM lParam);
 272
 273 #ifdef __WIN95__
 274     virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 275 #endif // __WIN95__
 276
 277     virtual bool MSWOnCtlColor(WXHBRUSH *hBrush,
 278                                WXHDC hdc,
 279                                WXHWND hWnd,
 280                                WXUINT nCtlColor,
 281                                WXUINT message,
 282                                WXWPARAM wParam,
 283                                WXLPARAM lParam);
 284
 285     virtual bool MSWOnPaletteChanged(WXHWND hWndPalChange);
 286     virtual bool MSWOnQueryNewPalette();
 287
 288     virtual bool MSWOnQueryEndSession(long logOff, bool *mayEnd);
 289     virtual bool MSWOnEndSession(bool endSession, long logOff);
 290
 291     virtual bool MSWOnDestroy();
 292     virtual bool MSWOnSetFocus(WXHWND wnd);
 293     virtual bool MSWOnKillFocus(WXHWND wnd);
 294     virtual bool MSWOnDropFiles(WXWPARAM wParam);
 295     virtual bool MSWOnInitDialog(WXHWND hWndFocus);
 296     virtual bool MSWOnShow(bool show, int status);
 297
 298     virtual bool MSWOnMouseEvent(WXUINT msg, int x, int y, WXUINT flags);
 299     virtual bool MSWOnMouseMove(int x, int y, WXUINT flags);
 300
 301     virtual bool MSWOnChar(WXWORD wParam, WXLPARAM lParam, bool isASCII = FALSE);
 302     virtual bool MSWOnKeyDown(WXWORD wParam, WXLPARAM lParam);
 303     virtual bool MSWOnKeyUp(WXWORD wParam, WXLPARAM lParam);
 304
 305     virtual bool MSWOnActivate(int flag, bool minimized, WXHWND activate);
 306     virtual bool MSWOnMDIActivate(long flag, WXHWND activate, WXHWND deactivate);
 307
 308     virtual bool MSWOnDrawItem(int id, WXDRAWITEMSTRUCT *item);
 309     virtual bool MSWOnMeasureItem(int id, WXMEASUREITEMSTRUCT *item);
 310
 311     // Window procedure
 312     virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 313
 314     // Calls an appropriate default window procedure
 315     virtual long MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 316     virtual bool MSWProcessMessage(WXMSG* pMsg);
 317     virtual bool MSWTranslateMessage(WXMSG* pMsg);
 318     virtual void MSWDestroyWindow();
 319
 320     // Detach "Window" menu from menu bar so it doesn't get deleted
 321     void MSWDetachWindowMenu();
 322
 323     // this function should return the brush to paint the window background
 324     // with or 0 for the default brush
 325     virtual WXHBRUSH OnCtlColor(WXHDC hDC,
 326                                 WXHWND hWnd,
 327                                 WXUINT nCtlColor,
 328                                 WXUINT message,
 329                                 WXWPARAM wParam,
 330                                 WXLPARAM lParam);
 331
 332 #if WXWIN_COMPATIBILITY
 333     void SetShowing(bool show) { (void)Show(show); }
 334     bool IsUserEnabled() const { return IsEnabled(); }
 335 #endif // WXWIN_COMPATIBILITY
 336
 337     // Responds to colour changes: passes event on to children.
 338     void OnSysColourChanged(wxSysColourChangedEvent& event);
 339
 340     // initialize various fields of wxMouseEvent (common part of MSWOnMouseXXX)
 341     void InitMouseEvent(wxMouseEvent& event, int x, int y, WXUINT flags);
 342
 343 protected:
 344     // the window handle
 345     WXHWND                m_hWnd;
 346
 347     // the old window proc (we subclass all windows)
 348     WXFARPROC             m_oldWndProc;
 349
 350     // additional (MSW specific) flags
 351     bool                  m_useCtl3D:1; // Using CTL3D for this control
 352     bool                  m_backgroundTransparent:1;
 353     bool                  m_mouseInWindow:1;
 354     bool                  m_doubleClickAllowed:1;
 355     bool                  m_winCaptured:1;
 356
 357     // Caret data
 358     bool                  m_caretEnabled:1;
 359     bool                  m_caretShown:1;
 360     int                   m_caretWidth;
 361     int                   m_caretHeight;
 362
 363     // the size of one page for scrolling
 364     int                   m_xThumbSize;
 365     int                   m_yThumbSize;
 366
 367 #if wxUSE_MOUSEEVENT_HACK
 368     // the coordinates of the last mouse event and the type of it
 369     long                  m_lastMouseX,
 370                           m_lastMouseY;
 371     int                   m_lastMouseEvent;
 372 #endif // wxUSE_MOUSEEVENT_HACK
 373
 374     WXHMENU               m_hMenu; // Menu, if any
 375
 376     wxButton             *m_btnDefault;
 377
 378     // implement the base class pure virtuals
 379     virtual void DoGetPosition( int *x, int *y ) const;
 380     virtual void DoGetSize( int *width, int *height ) const;
 381     virtual void DoGetClientSize( int *width, int *height ) const;
 382     virtual void DoSetSize(int x, int y,
 383                            int width, int height,
 384                            int sizeFlags = wxSIZE_AUTO);
 385     virtual void DoSetClientSize(int width, int height);
 386
 387 #if wxUSE_TOOLTIPS
 388     virtual void DoSetToolTip( wxToolTip *tip );
 389 #endif // wxUSE_TOOLTIPS
 390
 391 private:
 392     // common part of all ctors
 393     void Init();
 394
 395     // the (non-virtual) handlers for the events
 396     bool HandleMove(int x, int y);
 397     bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
 398
 399 #ifdef __WIN95__
 400     bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 401 #endif // __WIN95__
 402
 403     DECLARE_NO_COPY_CLASS(wxWindow);
 404     DECLARE_EVENT_TABLE()
 405 };
 406
 407 // ---------------------------------------------------------------------------
 408 // global functions
 409 // ---------------------------------------------------------------------------
 410
 411 // kbd code translation
 412 WXDLLEXPORT int wxCharCodeMSWToWX(int keySym);
 413 WXDLLEXPORT int wxCharCodeWXToMSW(int id, bool *IsVirtual);
 414
 415 #endif
 416     // _WX_WINDOW_H_