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adding scroll wheel support
[wxWidgets.git] / include / wx / os2 / window.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/os2/window.h
3 // Purpose: wxWindow class
4 // Author: David Webster
5 // Modified by:
6 // Created: 10/12/99
7 // RCS-ID: $Id$
8 // Copyright: (c) David Webster
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_WINDOW_H_
13 #define _WX_WINDOW_H_
14
15 #define wxUSE_MOUSEEVENT_HACK 0
16
17 // ---------------------------------------------------------------------------
18 // headers
19 // ---------------------------------------------------------------------------
20 #define INCL_DOS
21 #define INCL_PM
22 #define INCL_GPI
23 #include <os2.h>
24
25
26 // ---------------------------------------------------------------------------
27 // forward declarations
28 // ---------------------------------------------------------------------------
29 #ifndef CW_USEDEFAULT
30 # define CW_USEDEFAULT ((int)0x80000000)
31 #endif
32
33 // ---------------------------------------------------------------------------
34 // forward declarations
35 // ---------------------------------------------------------------------------
36
37 class WXDLLIMPEXP_FWD_CORE wxButton;
38
39 // ---------------------------------------------------------------------------
40 // wxWindow declaration for OS/2 PM
41 // ---------------------------------------------------------------------------
42
43 class WXDLLIMPEXP_CORE wxWindowOS2 : public wxWindowBase
44 {
45 public:
46 wxWindowOS2()
47 {
48 Init();
49 }
50
51 wxWindowOS2( wxWindow* pParent
52 ,wxWindowID vId
53 ,const wxPoint& rPos = wxDefaultPosition
54 ,const wxSize& rSize = wxDefaultSize
55 ,long lStyle = 0
56 ,const wxString& rName = wxPanelNameStr
57 )
58 {
59 Init();
60 Create( pParent
61 ,vId
62 ,rPos
63 ,rSize
64 ,lStyle
65 ,rName
66 );
67 }
68
69 virtual ~wxWindowOS2();
70
71 bool Create( wxWindow* pParent
72 ,wxWindowID vId
73 ,const wxPoint& rPos = wxDefaultPosition
74 ,const wxSize& rSize = wxDefaultSize
75 ,long lStyle = 0
76 ,const wxString& rName = wxPanelNameStr
77 );
78
79 // implement base class pure virtuals
80 virtual void SetLabel(const wxString& label);
81 virtual wxString GetLabel(void) const;
82 virtual void Raise(void);
83 virtual void Lower(void);
84 virtual bool Show(bool bShow = true);
85 virtual void DoEnable(bool bEnable);
86 virtual void SetFocus(void);
87 virtual void SetFocusFromKbd(void);
88 virtual bool Reparent(wxWindowBase* pNewParent);
89 virtual void WarpPointer( int x
90 ,int y
91 );
92 virtual void Refresh( bool bEraseBackground = true
93 ,const wxRect* pRect = (const wxRect *)NULL
94 );
95 virtual void Update(void);
96 virtual void SetWindowStyleFlag(long lStyle);
97 virtual bool SetCursor(const wxCursor& rCursor);
98 virtual bool SetFont(const wxFont& rFont);
99 virtual int GetCharHeight(void) const;
100 virtual int GetCharWidth(void) const;
101 virtual void GetTextExtent( const wxString& rString
102 ,int* pX
103 ,int* pY
104 ,int* pDescent = NULL
105 ,int* pExternalLeading = NULL
106 ,const wxFont* pTheFont = (const wxFont *)NULL
107 ) const;
108 #if wxUSE_MENUS_NATIVE
109 virtual bool DoPopupMenu( wxMenu* pMenu
110 ,int nX
111 ,int nY
112 );
113 #endif // wxUSE_MENUS_NATIVE
114
115 virtual void SetScrollbar( int nOrient
116 ,int nPos
117 ,int nThumbVisible
118 ,int nRange
119 ,bool bRefresh = true
120 );
121 virtual void SetScrollPos( int nOrient
122 ,int nPos
123 ,bool bRefresh = true
124 );
125 virtual int GetScrollPos(int nOrient) const;
126 virtual int GetScrollThumb(int nOrient) const;
127 virtual int GetScrollRange(int nOrient) const;
128 virtual void ScrollWindow( int nDx
129 ,int nDy
130 ,const wxRect* pRect = NULL
131 );
132
133 inline HWND GetScrollBarHorz(void) const {return m_hWndScrollBarHorz;}
134 inline HWND GetScrollBarVert(void) const {return m_hWndScrollBarVert;};
135 #if wxUSE_DRAG_AND_DROP
136 virtual void SetDropTarget(wxDropTarget* pDropTarget);
137 #endif // wxUSE_DRAG_AND_DROP
138
139 // Accept files for dragging
140 virtual void DragAcceptFiles(bool bAccept);
141
142 #ifndef __WXUNIVERSAL__
143 // Native resource loading (implemented in src/os2/nativdlg.cpp)
144 // FIXME: should they really be all virtual?
145 virtual bool LoadNativeDialog( wxWindow* pParent
146 ,wxWindowID& vId
147 );
148 virtual bool LoadNativeDialog( wxWindow* pParent
149 ,const wxString& rName
150 );
151 wxWindow* GetWindowChild1(wxWindowID vId);
152 wxWindow* GetWindowChild(wxWindowID vId);
153 #endif //__WXUNIVERSAL__
154
155 // implementation from now on
156 // --------------------------
157
158 // simple accessors
159 // ----------------
160
161 WXHWND GetHWND(void) const { return m_hWnd; }
162 void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
163 virtual WXWidget GetHandle(void) const { return GetHWND(); }
164 bool GetUseCtl3D(void) const { return m_bUseCtl3D; }
165 bool GetTransparentBackground(void) const { return m_bBackgroundTransparent; }
166 void SetTransparentBackground(bool bT = true) { m_bBackgroundTransparent = bT; }
167
168 // event handlers
169 // --------------
170 void OnSetFocus(wxFocusEvent& rEvent);
171 void OnEraseBackground(wxEraseEvent& rEvent);
172 void OnIdle(wxIdleEvent& rEvent);
173
174 public:
175
176 // Windows subclassing
177 void SubclassWin(WXHWND hWnd);
178 void UnsubclassWin(void);
179
180 WXFARPROC OS2GetOldWndProc(void) const { return m_fnOldWndProc; }
181 void OS2SetOldWndProc(WXFARPROC fnProc) { m_fnOldWndProc = fnProc; }
182 //
183 // Return true if the window is of a standard (i.e. not wxWidgets') class
184 //
185 bool IsOfStandardClass(void) const { return m_fnOldWndProc != NULL; }
186
187 wxWindow* FindItem(long lId) const;
188 wxWindow* FindItemByHWND( WXHWND hWnd
189 ,bool bControlOnly = false
190 ) const;
191
192 // Make a Windows extended style from the given wxWidgets window style ?? applicable to OS/2??
193 static WXDWORD MakeExtendedStyle( long lStyle
194 ,bool bEliminateBorders = true
195 );
196
197 // PM only: true if this control is part of the main control
198 virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; };
199
200 // translate wxWidgets style flags for this control into the PM style
201 // and optional extended style for the corresponding native control
202 //
203 // this is the function that should be overridden in the derived classes,
204 // but you will mostly use OS2GetCreateWindowFlags() below
205 virtual WXDWORD OS2GetStyle( long lFlags
206 ,WXDWORD* pdwExstyle = NULL
207 ) const;
208
209 // get the MSW window flags corresponding to wxWidgets ones
210 //
211 // the functions returns the flags (WS_XXX) directly and puts the ext
212 // (WS_EX_XXX) flags into the provided pointer if not NULL
213 WXDWORD OS2GetCreateWindowFlags(WXDWORD* pdwExflags = NULL) const
214 { return OS2GetStyle(GetWindowStyle(), pdwExflags); }
215
216
217 // get the HWND to be used as parent of this window with CreateWindow()
218 virtual WXHWND OS2GetParent(void) const;
219
220 // returns true if the window has been created
221 bool OS2Create( PSZ zClass
222 ,const wxChar* zTitle
223 ,WXDWORD dwStyle
224 ,const wxPoint& rPos
225 ,const wxSize& rSize
226 ,void* pCtlData
227 ,WXDWORD dwExStyle
228 ,bool bIsChild
229 );
230 virtual bool OS2Command( WXUINT uParam
231 ,WXWORD nId
232 );
233
234 #ifndef __WXUNIVERSAL__
235 // Create an appropriate wxWindow from a HWND
236 virtual wxWindow* CreateWindowFromHWND( wxWindow* pParent
237 ,WXHWND hWnd
238 );
239
240 // Make sure the window style reflects the HWND style (roughly)
241 virtual void AdoptAttributesFromHWND(void);
242 #endif
243
244 // Setup background and foreground colours correctly
245 virtual void SetupColours(void);
246
247 // ------------------------------------------------------------------------
248 // helpers for message handlers: these perform the same function as the
249 // message crackers from <windowsx.h> - they unpack WPARAM and LPARAM into
250 // the correct parameters
251 // ------------------------------------------------------------------------
252
253 void UnpackCommand( WXWPARAM wParam
254 ,WXLPARAM lParam,
255 WXWORD* pId
256 ,WXHWND* pHwnd
257 ,WXWORD* pCmd
258 );
259 void UnpackActivate( WXWPARAM wParam
260 ,WXLPARAM lParam
261 ,WXWORD* pState
262 ,WXHWND* pHwnd
263 );
264 void UnpackScroll( WXWPARAM wParam
265 ,WXLPARAM lParam
266 ,WXWORD* pCode
267 ,WXWORD* pPos
268 ,WXHWND* pHwnd
269 );
270 void UnpackMenuSelect( WXWPARAM wParam
271 ,WXLPARAM lParam
272 ,WXWORD* pTtem
273 ,WXWORD* pFlags
274 ,WXHMENU* pHmenu
275 );
276
277 // ------------------------------------------------------------------------
278 // internal handlers for OS2 messages: all handlers return a boolen value:
279 // true means that the handler processed the event and false that it didn't
280 // ------------------------------------------------------------------------
281
282 // there are several cases where we have virtual functions for PM
283 // message processing: this is because these messages often require to be
284 // processed in a different manner in the derived classes. For all other
285 // messages, however, we do *not* have corresponding OS2OnXXX() function
286 // and if the derived class wants to process them, it should override
287 // OS2WindowProc() directly.
288
289 // scroll event (both horizontal and vertical)
290 virtual bool OS2OnScroll( int nOrientation
291 ,WXWORD nSBCode
292 ,WXWORD pos
293 ,WXHWND control
294 );
295
296 // owner-drawn controls need to process these messages
297 virtual bool OS2OnDrawItem( int nId
298 ,WXDRAWITEMSTRUCT* pItem
299 );
300 virtual long OS2OnMeasureItem( int nId
301 ,WXMEASUREITEMSTRUCT* pItem
302 );
303
304 virtual void OnPaint(wxPaintEvent& rEvent);
305
306 // the rest are not virtual
307 bool HandleCreate( WXLPCREATESTRUCT vCs
308 ,bool* pMayCreate
309 );
310 bool HandleInitDialog(WXHWND hWndFocus);
311 bool HandleDestroy(void);
312 bool HandlePaint(void);
313 bool HandleEraseBkgnd(WXHDC vDC);
314 bool HandleMinimize(void);
315 bool HandleMaximize(void);
316 bool HandleSize( int nX
317 ,int nY
318 ,WXUINT uFlag
319 );
320 bool HandleGetMinMaxInfo(PSWP pMmInfo);
321 bool HandleShow( bool bShow
322 ,int nStatus
323 );
324 bool HandleActivate( int nFlag
325 ,WXHWND hActivate
326 );
327 bool HandleCommand( WXWORD nId
328 ,WXWORD nCmd
329 ,WXHWND hControl
330 );
331 bool HandleSysCommand( WXWPARAM wParam
332 ,WXLPARAM lParam
333 );
334 bool HandlePaletteChanged(void);
335 bool HandleQueryNewPalette(void);
336 bool HandleSysColorChange(void);
337 bool HandleDisplayChange(void);
338 bool HandleCaptureChanged(WXHWND hBainedCapture);
339
340 bool HandleCtlColor(WXHBRUSH* hBrush);
341 bool HandleSetFocus(WXHWND hWnd);
342 bool HandleKillFocus(WXHWND hWnd);
343 bool HandleEndDrag(WXWPARAM wParam);
344 bool HandleMouseEvent( WXUINT uMsg
345 ,int nX
346 ,int nY
347 ,WXUINT uFlags
348 );
349 bool HandleMouseMove( int nX
350 ,int nY
351 ,WXUINT uFlags
352 );
353 bool HandleChar( WXWPARAM wParam
354 ,WXLPARAM lParam
355 ,bool bIsASCII = false
356 );
357 bool HandleKeyDown( WXWPARAM wParam
358 ,WXLPARAM lParam
359 );
360 bool HandleKeyUp( WXWPARAM wParam
361 ,WXLPARAM lParam
362 );
363 bool HandleQueryDragIcon(WXHICON* phIcon);
364 bool HandleSetCursor( USHORT vId
365 ,WXHWND hWnd
366 );
367
368 bool IsMouseInWindow(void) const;
369 bool OS2GetCreateWindowCoords( const wxPoint& rPos
370 ,const wxSize& rSize
371 ,int& rnX
372 ,int& rnY
373 ,int& rnWidth
374 ,int& rnHeight
375 ) const;
376
377 // Window procedure
378 virtual MRESULT OS2WindowProc( WXUINT uMsg
379 ,WXWPARAM wParam
380 ,WXLPARAM lParam
381 );
382
383 // Calls an appropriate default window procedure
384 virtual MRESULT OS2DefWindowProc( WXUINT uMsg
385 ,WXWPARAM wParam
386 ,WXLPARAM lParam
387 );
388 virtual bool OS2ProcessMessage(WXMSG* pMsg);
389 virtual bool OS2ShouldPreProcessMessage(WXMSG* pMsg);
390 virtual bool OS2TranslateMessage(WXMSG* pMsg);
391 virtual void OS2DestroyWindow(void);
392
393 // this function should return the brush to paint the window background
394 // with or 0 for the default brush
395 virtual WXHBRUSH OnCtlColor( WXHDC hDC
396 ,WXHWND hWnd
397 ,WXUINT uCtlColor
398 ,WXUINT uMessage
399 ,WXWPARAM wParam
400 ,WXLPARAM lParam
401 );
402
403 // Responds to colour changes: passes event on to children.
404 void OnSysColourChanged(wxSysColourChangedEvent& rEvent);
405
406 // initialize various fields of wxMouseEvent (common part of OS2OnMouseXXX)
407 void InitMouseEvent( wxMouseEvent& rEvent
408 ,int nX
409 ,int nY
410 ,WXUINT uFlags
411 );
412
413 void MoveChildren(int nDiff);
414 PSWP GetSwp(void) {return &m_vWinSwp;}
415
416 protected:
417 virtual void DoFreeze(void);
418 virtual void DoThaw(void);
419
420 // PM can't create some MSW styles natively but can perform these after
421 // creation by sending messages
422 typedef enum extra_flags { kFrameToolWindow = 0x0001
423 ,kVertCaption = 0x0002
424 ,kHorzCaption = 0x0004
425 } EExtraFlags;
426 // Some internal sizeing id's to make it easy for event handlers
427 typedef enum size_types { kSizeNormal
428 ,kSizeMax
429 ,kSizeMin
430 } ESizeTypes;
431 // the window handle
432 WXHWND m_hWnd;
433
434 // the old window proc (we subclass all windows)
435 WXFARPROC m_fnOldWndProc;
436
437 // additional (OS2 specific) flags
438 bool m_bUseCtl3D:1; // Using CTL3D for this control
439 bool m_bBackgroundTransparent:1;
440 bool m_bMouseInWindow:1;
441 bool m_bLastKeydownProcessed:1;
442 bool m_bWinCaptured:1;
443 WXDWORD m_dwExStyle;
444
445 // the size of one page for scrolling
446 int m_nXThumbSize;
447 int m_nYThumbSize;
448
449 #if wxUSE_MOUSEEVENT_HACK
450 // the coordinates of the last mouse event and the type of it
451 long m_lLastMouseX,
452 long m_lLastMouseY;
453 int m_nLastMouseEvent;
454 #endif // wxUSE_MOUSEEVENT_HACK
455
456 WXHMENU m_hMenu; // Menu, if any
457 unsigned long m_ulMenubarId; // it's Id, if any
458
459 // the return value of WM_GETDLGCODE handler
460 long m_lDlgCode;
461
462 // implement the base class pure virtuals
463 virtual void DoClientToScreen( int* pX
464 ,int* pY
465 ) const;
466 virtual void DoScreenToClient( int* pX
467 ,int* pY
468 ) const;
469 virtual void DoGetPosition( int* pX
470 ,int* pY
471 ) const;
472 virtual void DoGetSize( int* pWidth
473 ,int* pHeight
474 ) const;
475 virtual void DoGetClientSize( int* pWidth
476 ,int* pHeight
477 ) const;
478 virtual void DoSetSize( int nX
479 ,int nY
480 ,int nWidth
481 ,int nHeight
482 ,int nSizeFlags = wxSIZE_AUTO
483 );
484 virtual void DoSetClientSize( int nWidth
485 ,int nHeight
486 );
487
488 virtual void DoCaptureMouse(void);
489 virtual void DoReleaseMouse(void);
490
491 // move the window to the specified location and resize it: this is called
492 // from both DoSetSize() and DoSetClientSize() and would usually just call
493 // ::WinSetWindowPos() except for composite controls which will want to arrange
494 // themselves inside the given rectangle
495 virtual void DoMoveWindow( int nX
496 ,int nY
497 ,int nWidth
498 ,int nHeight
499 );
500
501 #if wxUSE_TOOLTIPS
502 virtual void DoSetToolTip(wxToolTip* pTip);
503 #endif // wxUSE_TOOLTIPS
504
505 int GetOS2ParentHeight(wxWindowOS2* pParent);
506
507 private:
508 // common part of all ctors
509 void Init(void);
510
511 // the (non-virtual) handlers for the events
512 bool HandleMove( int nX
513 ,int nY
514 );
515 bool HandleJoystickEvent( WXUINT uMsg
516 ,int pX
517 ,int pY
518 ,WXUINT uFlags
519 );
520
521 bool HandleNotify( int nIdCtrl
522 ,WXLPARAM lParam
523 ,WXLPARAM* pResult
524 );
525 // the helper functions used by HandleChar/KeyXXX methods
526 wxKeyEvent CreateKeyEvent( wxEventType evType
527 ,int nId
528 ,WXLPARAM lParam = 0
529 ,WXWPARAM wParam = 0
530 ) const;
531
532 HWND m_hWndScrollBarHorz;
533 HWND m_hWndScrollBarVert;
534 SWP m_vWinSwp;
535
536 DECLARE_DYNAMIC_CLASS(wxWindowOS2);
537 DECLARE_NO_COPY_CLASS(wxWindowOS2)
538 DECLARE_EVENT_TABLE()
539 }; // end of wxWindow
540
541 class wxWindowCreationHook
542 {
543 public:
544 wxWindowCreationHook(wxWindow* pWinBeingCreated);
545 ~wxWindowCreationHook();
546 }; // end of CLASS wxWindowCreationHook
547
548 // ---------------------------------------------------------------------------
549 // global functions
550 // ---------------------------------------------------------------------------
551
552 // kbd code translation
553 WXDLLIMPEXP_CORE int wxCharCodeOS2ToWX(int nKeySym);
554 WXDLLIMPEXP_CORE int wxCharCodeWXToOS2( int nId
555 ,bool* pbIsVirtual = NULL
556 );
557
558 // ----------------------------------------------------------------------------
559 // global objects
560 // ----------------------------------------------------------------------------
561
562 // notice that this hash must be defined after wxWindow declaration as it
563 // needs to "see" its dtor and not just forward declaration
564 #include "wx/hash.h"
565
566 // pseudo-template HWND <-> wxWindow hash table
567 WX_DECLARE_HASH(wxWindowOS2, wxWindowList, wxWinHashTable);
568
569 extern wxWinHashTable *wxWinHandleHash;
570
571 #endif // _WX_WINDOW_H_
wxWidgets (Impactor)