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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: wx/window.h
3 // Purpose: wxWindowBase class - the interface of wxWindow
4 // Author: Vadim Zeitlin
5 // Modified by: Ron Lee
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Vadim Zeitlin
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_WINDOW_H_BASE_
13 #define _WX_WINDOW_H_BASE_
14
15 // ----------------------------------------------------------------------------
16 // headers which we must include here
17 // ----------------------------------------------------------------------------
18
19 #include "wx/event.h" // the base class
20
21 #include "wx/list.h" // defines wxWindowList
22
23 #include "wx/cursor.h" // we have member variables of these classes
24 #include "wx/font.h" // so we can't do without them
25 #include "wx/colour.h"
26 #include "wx/region.h"
27 #include "wx/utils.h"
28 #include "wx/intl.h"
29
30 #include "wx/validate.h" // for wxDefaultValidator (always include it)
31
32 #if wxUSE_PALETTE
33 #include "wx/palette.h"
34 #endif // wxUSE_PALETTE
35
36 #if wxUSE_ACCEL
37 #include "wx/accel.h"
38 #endif // wxUSE_ACCEL
39
40 #if wxUSE_ACCESSIBILITY
41 #include "wx/access.h"
42 #endif
43
44 // when building wxUniv/Foo we don't want the code for native menu use to be
45 // compiled in - it should only be used when building real wxFoo
46 #ifdef __WXUNIVERSAL__
47 #define wxUSE_MENUS_NATIVE 0
48 #else // !__WXUNIVERSAL__
49 #define wxUSE_MENUS_NATIVE wxUSE_MENUS
50 #endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
51
52 // ----------------------------------------------------------------------------
53 // forward declarations
54 // ----------------------------------------------------------------------------
55
56 class WXDLLEXPORT wxCaret;
57 class WXDLLEXPORT wxControl;
58 class WXDLLEXPORT wxCursor;
59 class WXDLLEXPORT wxDC;
60 class WXDLLEXPORT wxDropTarget;
61 class WXDLLEXPORT wxItemResource;
62 class WXDLLEXPORT wxLayoutConstraints;
63 class WXDLLEXPORT wxResourceTable;
64 class WXDLLEXPORT wxSizer;
65 class WXDLLEXPORT wxToolTip;
66 class WXDLLEXPORT wxWindowBase;
67 class WXDLLEXPORT wxWindow;
68 class WXDLLEXPORT wxScrollHelper;
69
70 #if wxUSE_ACCESSIBILITY
71 class WXDLLEXPORT wxAccessible;
72 #endif
73
74 // ----------------------------------------------------------------------------
75 // helper stuff used by wxWindow
76 // ----------------------------------------------------------------------------
77
78 // struct containing all the visual attributes of a control
79 struct WXDLLEXPORT wxVisualAttributes
80 {
81 // the font used for control label/text inside it
82 wxFont font;
83
84 // the foreground colour
85 wxColour colFg;
86
87 // the background colour, may be wxNullColour if the controls background
88 // colour is not solid
89 wxColour colBg;
90 };
91
92 // different window variants, on platforms like eg mac uses different
93 // rendering sizes
94 enum wxWindowVariant
95 {
96 wxWINDOW_VARIANT_NORMAL, // Normal size
97 wxWINDOW_VARIANT_SMALL, // Smaller size (about 25 % smaller than normal)
98 wxWINDOW_VARIANT_MINI, // Mini size (about 33 % smaller than normal)
99 wxWINDOW_VARIANT_LARGE, // Large size (about 25 % larger than normal)
100 wxWINDOW_VARIANT_MAX
101 };
102
103 #if wxUSE_SYSTEM_OPTIONS
104 #define wxWINDOW_DEFAULT_VARIANT wxT("window-default-variant")
105 #endif
106
107 // ----------------------------------------------------------------------------
108 // (pseudo)template list classes
109 // ----------------------------------------------------------------------------
110
111 WX_DECLARE_LIST_3(wxWindow, wxWindowBase, wxWindowList, wxWindowListNode, class WXDLLEXPORT);
112
113 // ----------------------------------------------------------------------------
114 // global variables
115 // ----------------------------------------------------------------------------
116
117 extern WXDLLEXPORT_DATA(wxWindowList) wxTopLevelWindows;
118 extern WXDLLIMPEXP_DATA_CORE(wxList) wxPendingDelete;
119
120 // ----------------------------------------------------------------------------
121 // wxWindowBase is the base class for all GUI controls/widgets, this is the public
122 // interface of this class.
123 //
124 // Event handler: windows have themselves as their event handlers by default,
125 // but their event handlers could be set to another object entirely. This
126 // separation can reduce the amount of derivation required, and allow
127 // alteration of a window's functionality (e.g. by a resource editor that
128 // temporarily switches event handlers).
129 // ----------------------------------------------------------------------------
130
131 class WXDLLEXPORT wxWindowBase : public wxEvtHandler
132 {
133 public:
134 // creating the window
135 // -------------------
136
137 // default ctor, initializes everything which can be initialized before
138 // Create()
139 wxWindowBase() ;
140
141 // pseudo ctor (can't be virtual, called from ctor)
142 bool CreateBase(wxWindowBase *parent,
143 wxWindowID winid,
144 const wxPoint& pos = wxDefaultPosition,
145 const wxSize& size = wxDefaultSize,
146 long style = 0,
147 const wxValidator& validator = wxDefaultValidator,
148 const wxString& name = wxPanelNameStr);
149
150 virtual ~wxWindowBase();
151
152 // deleting the window
153 // -------------------
154
155 // ask the window to close itself, return true if the event handler
156 // honoured our request
157 bool Close( bool force = false );
158
159 // the following functions delete the C++ objects (the window itself
160 // or its children) as well as the GUI windows and normally should
161 // never be used directly
162
163 // delete window unconditionally (dangerous!), returns true if ok
164 virtual bool Destroy();
165 // delete all children of this window, returns true if ok
166 bool DestroyChildren();
167
168 // is the window being deleted?
169 bool IsBeingDeleted() const { return m_isBeingDeleted; }
170
171 // window attributes
172 // -----------------
173
174 // label is just the same as the title (but for, e.g., buttons it
175 // makes more sense to speak about labels), title access
176 // is available from wxTLW classes only (frames, dialogs)
177 virtual void SetLabel(const wxString& label) = 0;
178 virtual wxString GetLabel() const = 0;
179
180 // the window name is used for ressource setting in X, it is not the
181 // same as the window title/label
182 virtual void SetName( const wxString &name ) { m_windowName = name; }
183 virtual wxString GetName() const { return m_windowName; }
184
185 // sets the window variant, calls internally DoSetVariant if variant
186 // has changed
187 void SetWindowVariant(wxWindowVariant variant);
188 wxWindowVariant GetWindowVariant() const { return m_windowVariant; }
189
190
191 // window id uniquely identifies the window among its siblings unless
192 // it is wxID_ANY which means "don't care"
193 void SetId( wxWindowID winid ) { m_windowId = winid; }
194 wxWindowID GetId() const { return m_windowId; }
195
196 // get or change the layout direction (LTR or RTL) for this window,
197 // wxLayout_Default is returned if layout direction is not supported
198 virtual wxLayoutDirection GetLayoutDirection() const
199 { return wxLayout_Default; }
200 virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
201 { }
202
203 // mirror coordinates for RTL layout if this window uses it and if the
204 // mirroring is not done automatically like Win32
205 virtual wxCoord AdjustForLayoutDirection(wxCoord x,
206 wxCoord width,
207 wxCoord widthTotal) const;
208
209 // generate a control id for the controls which were not given one by
210 // user
211 static int NewControlId() { return --ms_lastControlId; }
212 // get the id of the control following the one with the given
213 // (autogenerated) id
214 static int NextControlId(int winid) { return winid - 1; }
215 // get the id of the control preceding the one with the given
216 // (autogenerated) id
217 static int PrevControlId(int winid) { return winid + 1; }
218
219 // moving/resizing
220 // ---------------
221
222 // set the window size and/or position
223 void SetSize( int x, int y, int width, int height,
224 int sizeFlags = wxSIZE_AUTO )
225 { DoSetSize(x, y, width, height, sizeFlags); }
226
227 void SetSize( int width, int height )
228 { DoSetSize( wxDefaultCoord, wxDefaultCoord, width, height, wxSIZE_USE_EXISTING ); }
229
230 void SetSize( const wxSize& size )
231 { SetSize( size.x, size.y); }
232
233 void SetSize(const wxRect& rect, int sizeFlags = wxSIZE_AUTO)
234 { DoSetSize(rect.x, rect.y, rect.width, rect.height, sizeFlags); }
235
236 void Move(int x, int y, int flags = wxSIZE_USE_EXISTING)
237 { DoSetSize(x, y, wxDefaultCoord, wxDefaultCoord, flags); }
238
239 void Move(const wxPoint& pt, int flags = wxSIZE_USE_EXISTING)
240 { Move(pt.x, pt.y, flags); }
241
242 void SetPosition(const wxPoint& pt) { Move(pt); }
243
244 // Z-order
245 virtual void Raise() = 0;
246 virtual void Lower() = 0;
247
248 // client size is the size of area available for subwindows
249 void SetClientSize( int width, int height )
250 { DoSetClientSize(width, height); }
251
252 void SetClientSize( const wxSize& size )
253 { DoSetClientSize(size.x, size.y); }
254
255 void SetClientSize(const wxRect& rect)
256 { SetClientSize( rect.width, rect.height ); }
257
258 // get the window position (pointers may be NULL): notice that it is in
259 // client coordinates for child windows and screen coordinates for the
260 // top level ones, use GetScreenPosition() if you need screen
261 // coordinates for all kinds of windows
262 void GetPosition( int *x, int *y ) const { DoGetPosition(x, y); }
263 wxPoint GetPosition() const
264 {
265 int x, y;
266 DoGetPosition(&x, &y);
267
268 return wxPoint(x, y);
269 }
270
271 // get the window position in screen coordinates
272 void GetScreenPosition(int *x, int *y) const { DoGetScreenPosition(x, y); }
273 wxPoint GetScreenPosition() const
274 {
275 int x, y;
276 DoGetScreenPosition(&x, &y);
277
278 return wxPoint(x, y);
279 }
280
281 // get the window size (pointers may be NULL)
282 void GetSize( int *w, int *h ) const { DoGetSize(w, h); }
283 wxSize GetSize() const
284 {
285 int w, h;
286 DoGetSize(& w, & h);
287 return wxSize(w, h);
288 }
289
290 void GetClientSize( int *w, int *h ) const { DoGetClientSize(w, h); }
291 wxSize GetClientSize() const
292 {
293 int w, h;
294 DoGetClientSize(&w, &h);
295
296 return wxSize(w, h);
297 }
298
299 // get the position and size at once
300 wxRect GetRect() const
301 {
302 int x, y, w, h;
303 GetPosition(&x, &y);
304 GetSize(&w, &h);
305
306 return wxRect(x, y, w, h);
307 }
308
309 wxRect GetScreenRect() const
310 {
311 int x, y, w, h;
312 GetScreenPosition(&x, &y);
313 GetSize(&w, &h);
314
315 return wxRect(x, y, w, h);
316 }
317
318 // get the origin of the client area of the window relative to the
319 // window top left corner (the client area may be shifted because of
320 // the borders, scrollbars, other decorations...)
321 virtual wxPoint GetClientAreaOrigin() const;
322
323 // get the client rectangle in window (i.e. client) coordinates
324 wxRect GetClientRect() const
325 {
326 return wxRect(GetClientAreaOrigin(), GetClientSize());
327 }
328
329 // get the size best suited for the window (in fact, minimal
330 // acceptable size using which it will still look "nice" in
331 // most situations)
332 wxSize GetBestSize() const
333 {
334 if (m_bestSizeCache.IsFullySpecified())
335 return m_bestSizeCache;
336 return DoGetBestSize();
337 }
338 void GetBestSize(int *w, int *h) const
339 {
340 wxSize s = GetBestSize();
341 if ( w )
342 *w = s.x;
343 if ( h )
344 *h = s.y;
345 }
346
347 void SetScrollHelper( wxScrollHelper *sh ) { m_scrollHelper = sh; }
348 wxScrollHelper *GetScrollHelper() { return m_scrollHelper; }
349
350 // reset the cached best size value so it will be recalculated the
351 // next time it is needed.
352 void InvalidateBestSize();
353 void CacheBestSize(const wxSize& size) const
354 { wxConstCast(this, wxWindowBase)->m_bestSizeCache = size; }
355
356 // There are times (and windows) where 'Best' size and 'Min' size
357 // are vastly out of sync. This should be remedied somehow, but in
358 // the meantime, this method will return the larger of BestSize
359 // (the window's smallest legible size), and any user specified
360 // MinSize hint.
361 wxSize GetAdjustedBestSize() const
362 {
363 wxSize s( GetBestSize() );
364 return wxSize( wxMax( s.x, GetMinWidth() ), wxMax( s.y, GetMinHeight() ) );
365 }
366
367 // This function will merge the window's best size into the window's
368 // minimum size, giving priority to the min size components, and
369 // returns the results.
370 wxSize GetBestFittingSize() const;
371
372 // A 'Smart' SetSize that will fill in default size values with 'best'
373 // size. Sets the minsize to what was passed in.
374 void SetBestFittingSize(const wxSize& size=wxDefaultSize);
375
376 // the generic centre function - centers the window on parent by`
377 // default or on screen if it doesn't have parent or
378 // wxCENTER_ON_SCREEN flag is given
379 void Centre(int dir = wxBOTH) { DoCentre(dir); }
380 void Center(int dir = wxBOTH) { DoCentre(dir); }
381
382 // centre with respect to the the parent window
383 void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
384 void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
385
386 // set window size to wrap around its children
387 virtual void Fit();
388
389 // set virtual size to satisfy children
390 virtual void FitInside();
391
392 // set min/max size of the window
393 virtual void SetSizeHints( int minW, int minH,
394 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord,
395 int incW = wxDefaultCoord, int incH = wxDefaultCoord )
396 {
397 DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
398 }
399
400 void SetSizeHints( const wxSize& minSize,
401 const wxSize& maxSize=wxDefaultSize,
402 const wxSize& incSize=wxDefaultSize)
403 {
404 DoSetSizeHints(minSize.x, minSize.y,
405 maxSize.x, maxSize.y,
406 incSize.x, incSize.y);
407 }
408
409 virtual void DoSetSizeHints(int minW, int minH,
410 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord,
411 int incW = wxDefaultCoord, int incH = wxDefaultCoord );
412
413 virtual void SetVirtualSizeHints( int minW, int minH,
414 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord );
415 void SetVirtualSizeHints( const wxSize& minSize,
416 const wxSize& maxSize=wxDefaultSize)
417 {
418 SetVirtualSizeHints(minSize.x, minSize.y, maxSize.x, maxSize.y);
419 }
420
421 virtual int GetMinWidth() const { return m_minWidth; }
422 virtual int GetMinHeight() const { return m_minHeight; }
423 int GetMaxWidth() const { return m_maxWidth; }
424 int GetMaxHeight() const { return m_maxHeight; }
425
426 // Override this method to control the values given to Sizers etc.
427 virtual wxSize GetMaxSize() const { return wxSize( m_maxWidth, m_maxHeight ); }
428 virtual wxSize GetMinSize() const { return wxSize( m_minWidth, m_minHeight ); }
429
430 void SetMinSize(const wxSize& minSize) { SetSizeHints(minSize); }
431 void SetMaxSize(const wxSize& maxSize) { SetSizeHints(GetMinSize(), maxSize); }
432
433 // Methods for accessing the virtual size of a window. For most
434 // windows this is just the client area of the window, but for
435 // some like scrolled windows it is more or less independent of
436 // the screen window size. You may override the DoXXXVirtual
437 // methods below for classes where that is is the case.
438
439 void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
440 void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }
441
442 wxSize GetVirtualSize() const { return DoGetVirtualSize(); }
443 void GetVirtualSize( int *x, int *y ) const
444 {
445 wxSize s( DoGetVirtualSize() );
446
447 if( x )
448 *x = s.GetWidth();
449 if( y )
450 *y = s.GetHeight();
451 }
452
453 // Override these methods for windows that have a virtual size
454 // independent of their client size. eg. the virtual area of a
455 // wxScrolledWindow.
456
457 virtual void DoSetVirtualSize( int x, int y );
458 virtual wxSize DoGetVirtualSize() const;
459
460 // Return the largest of ClientSize and BestSize (as determined
461 // by a sizer, interior children, or other means)
462
463 virtual wxSize GetBestVirtualSize() const
464 {
465 wxSize client( GetClientSize() );
466 wxSize best( GetBestSize() );
467
468 return wxSize( wxMax( client.x, best.x ), wxMax( client.y, best.y ) );
469 }
470
471 // window state
472 // ------------
473
474 // returns true if window was shown/hidden, false if the nothing was
475 // done (window was already shown/hidden)
476 virtual bool Show( bool show = true );
477 bool Hide() { return Show(false); }
478
479 // returns true if window was enabled/disabled, false if nothing done
480 virtual bool Enable( bool enable = true );
481 bool Disable() { return Enable(false); }
482
483 virtual bool IsShown() const { return m_isShown; }
484 virtual bool IsEnabled() const { return m_isEnabled; }
485
486 // returns true if the window is visible, i.e. IsShown() returns true
487 // if called on it and all its parents up to the first TLW
488 virtual bool IsShownOnScreen() const;
489
490 // get/set window style (setting style won't update the window and so
491 // is only useful for internal usage)
492 virtual void SetWindowStyleFlag( long style ) { m_windowStyle = style; }
493 virtual long GetWindowStyleFlag() const { return m_windowStyle; }
494
495 // just some (somewhat shorter) synonims
496 void SetWindowStyle( long style ) { SetWindowStyleFlag(style); }
497 long GetWindowStyle() const { return GetWindowStyleFlag(); }
498
499 bool HasFlag(int flag) const { return (m_windowStyle & flag) != 0; }
500 virtual bool IsRetained() const { return HasFlag(wxRETAINED); }
501
502 // extra style: the less often used style bits which can't be set with
503 // SetWindowStyleFlag()
504 virtual void SetExtraStyle(long exStyle) { m_exStyle = exStyle; }
505 long GetExtraStyle() const { return m_exStyle; }
506
507 // make the window modal (all other windows unresponsive)
508 virtual void MakeModal(bool modal = true);
509
510
511 // (primitive) theming support
512 // ---------------------------
513
514 virtual void SetThemeEnabled(bool enableTheme) { m_themeEnabled = enableTheme; }
515 virtual bool GetThemeEnabled() const { return m_themeEnabled; }
516
517
518 // focus and keyboard handling
519 // ---------------------------
520
521 // set focus to this window
522 virtual void SetFocus() = 0;
523
524 // set focus to this window as the result of a keyboard action
525 virtual void SetFocusFromKbd() { SetFocus(); }
526
527 // return the window which currently has the focus or NULL
528 static wxWindow *FindFocus();
529
530 static wxWindow *DoFindFocus() /* = 0: implement in derived classes */;
531
532 // can this window have focus?
533 virtual bool AcceptsFocus() const { return IsShown() && IsEnabled(); }
534
535 // can this window be given focus by keyboard navigation? if not, the
536 // only way to give it focus (provided it accepts it at all) is to
537 // click it
538 virtual bool AcceptsFocusFromKeyboard() const { return AcceptsFocus(); }
539
540 // navigates in the specified direction by sending a wxNavigationKeyEvent
541 virtual bool Navigate(int flags = wxNavigationKeyEvent::IsForward);
542
543 // move this window just before/after the specified one in tab order
544 // (the other window must be our sibling!)
545 void MoveBeforeInTabOrder(wxWindow *win)
546 { DoMoveInTabOrder(win, MoveBefore); }
547 void MoveAfterInTabOrder(wxWindow *win)
548 { DoMoveInTabOrder(win, MoveAfter); }
549
550
551 // parent/children relations
552 // -------------------------
553
554 // get the list of children
555 const wxWindowList& GetChildren() const { return m_children; }
556 wxWindowList& GetChildren() { return m_children; }
557
558 // needed just for extended runtime
559 const wxWindowList& GetWindowChildren() const { return GetChildren() ; }
560
561 // get the parent or the parent of the parent
562 wxWindow *GetParent() const { return m_parent; }
563 inline wxWindow *GetGrandParent() const;
564
565 // is this window a top level one?
566 virtual bool IsTopLevel() const;
567
568 // it doesn't really change parent, use Reparent() instead
569 void SetParent( wxWindowBase *parent ) { m_parent = (wxWindow *)parent; }
570 // change the real parent of this window, return true if the parent
571 // was changed, false otherwise (error or newParent == oldParent)
572 virtual bool Reparent( wxWindowBase *newParent );
573
574 // implementation mostly
575 virtual void AddChild( wxWindowBase *child );
576 virtual void RemoveChild( wxWindowBase *child );
577
578 // looking for windows
579 // -------------------
580
581 // find window among the descendants of this one either by id or by
582 // name (return NULL if not found)
583 wxWindow *FindWindow(long winid) const;
584 wxWindow *FindWindow(const wxString& name) const;
585
586 // Find a window among any window (all return NULL if not found)
587 static wxWindow *FindWindowById( long winid, const wxWindow *parent = NULL );
588 static wxWindow *FindWindowByName( const wxString& name,
589 const wxWindow *parent = NULL );
590 static wxWindow *FindWindowByLabel( const wxString& label,
591 const wxWindow *parent = NULL );
592
593 // event handler stuff
594 // -------------------
595
596 // get the current event handler
597 wxEvtHandler *GetEventHandler() const { return m_eventHandler; }
598
599 // replace the event handler (allows to completely subclass the
600 // window)
601 void SetEventHandler( wxEvtHandler *handler ) { m_eventHandler = handler; }
602
603 // push/pop event handler: allows to chain a custom event handler to
604 // alreasy existing ones
605 void PushEventHandler( wxEvtHandler *handler );
606 wxEvtHandler *PopEventHandler( bool deleteHandler = false );
607
608 // find the given handler in the event handler chain and remove (but
609 // not delete) it from the event handler chain, return true if it was
610 // found and false otherwise (this also results in an assert failure so
611 // this function should only be called when the handler is supposed to
612 // be there)
613 bool RemoveEventHandler(wxEvtHandler *handler);
614
615 // validators
616 // ----------
617
618 #if wxUSE_VALIDATORS
619 // a window may have an associated validator which is used to control
620 // user input
621 virtual void SetValidator( const wxValidator &validator );
622 virtual wxValidator *GetValidator() { return m_windowValidator; }
623 #endif // wxUSE_VALIDATORS
624
625
626 // dialog oriented functions
627 // -------------------------
628
629 // validate the correctness of input, return true if ok
630 virtual bool Validate();
631
632 // transfer data between internal and GUI representations
633 virtual bool TransferDataToWindow();
634 virtual bool TransferDataFromWindow();
635
636 virtual void InitDialog();
637
638 #if wxUSE_ACCEL
639 // accelerators
640 // ------------
641 virtual void SetAcceleratorTable( const wxAcceleratorTable& accel )
642 { m_acceleratorTable = accel; }
643 wxAcceleratorTable *GetAcceleratorTable()
644 { return &m_acceleratorTable; }
645
646 #endif // wxUSE_ACCEL
647
648 #if wxUSE_HOTKEY
649 // hot keys (system wide accelerators)
650 // -----------------------------------
651
652 virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
653 virtual bool UnregisterHotKey(int hotkeyId);
654 #endif // wxUSE_HOTKEY
655
656
657 // dialog units translations
658 // -------------------------
659
660 wxPoint ConvertPixelsToDialog( const wxPoint& pt );
661 wxPoint ConvertDialogToPixels( const wxPoint& pt );
662 wxSize ConvertPixelsToDialog( const wxSize& sz )
663 {
664 wxPoint pt(ConvertPixelsToDialog(wxPoint(sz.x, sz.y)));
665
666 return wxSize(pt.x, pt.y);
667 }
668
669 wxSize ConvertDialogToPixels( const wxSize& sz )
670 {
671 wxPoint pt(ConvertDialogToPixels(wxPoint(sz.x, sz.y)));
672
673 return wxSize(pt.x, pt.y);
674 }
675
676 // mouse functions
677 // ---------------
678
679 // move the mouse to the specified position
680 virtual void WarpPointer(int x, int y) = 0;
681
682 // start or end mouse capture, these functions maintain the stack of
683 // windows having captured the mouse and after calling ReleaseMouse()
684 // the mouse is not released but returns to the window which had had
685 // captured it previously (if any)
686 void CaptureMouse();
687 void ReleaseMouse();
688
689 // get the window which currently captures the mouse or NULL
690 static wxWindow *GetCapture();
691
692 // does this window have the capture?
693 virtual bool HasCapture() const
694 { return (wxWindow *)this == GetCapture(); }
695
696 // painting the window
697 // -------------------
698
699 // mark the specified rectangle (or the whole window) as "dirty" so it
700 // will be repainted
701 virtual void Refresh( bool eraseBackground = true,
702 const wxRect *rect = (const wxRect *) NULL ) = 0;
703
704 // a less awkward wrapper for Refresh
705 void RefreshRect(const wxRect& rect, bool eraseBackground = true)
706 {
707 Refresh(eraseBackground, &rect);
708 }
709
710 // repaint all invalid areas of the window immediately
711 virtual void Update() { }
712
713 // clear the window background
714 virtual void ClearBackground();
715
716 // freeze the window: don't redraw it until it is thawed
717 virtual void Freeze() { }
718
719 // thaw the window: redraw it after it had been frozen
720 virtual void Thaw() { }
721
722 // return true if window had been frozen and not unthawed yet
723 virtual bool IsFrozen() const { return false; }
724
725 // adjust DC for drawing on this window
726 virtual void PrepareDC( wxDC & WXUNUSED(dc) ) { }
727
728 // the update region of the window contains the areas which must be
729 // repainted by the program
730 const wxRegion& GetUpdateRegion() const { return m_updateRegion; }
731 wxRegion& GetUpdateRegion() { return m_updateRegion; }
732
733 // get the update rectangleregion bounding box in client coords
734 wxRect GetUpdateClientRect() const;
735
736 // these functions verify whether the given point/rectangle belongs to
737 // (or at least intersects with) the update region
738 virtual bool DoIsExposed( int x, int y ) const;
739 virtual bool DoIsExposed( int x, int y, int w, int h ) const;
740
741 bool IsExposed( int x, int y ) const
742 { return DoIsExposed(x, y); }
743 bool IsExposed( int x, int y, int w, int h ) const
744 { return DoIsExposed(x, y, w, h); }
745 bool IsExposed( const wxPoint& pt ) const
746 { return DoIsExposed(pt.x, pt.y); }
747 bool IsExposed( const wxRect& rect ) const
748 { return DoIsExposed(rect.x, rect.y, rect.width, rect.height); }
749
750 // colours, fonts and cursors
751 // --------------------------
752
753 // get the default attributes for the controls of this class: we
754 // provide a virtual function which can be used to query the default
755 // attributes of an existing control and a static function which can
756 // be used even when no existing object of the given class is
757 // available, but which won't return any styles specific to this
758 // particular control, of course (e.g. "Ok" button might have
759 // different -- bold for example -- font)
760 virtual wxVisualAttributes GetDefaultAttributes() const
761 {
762 return GetClassDefaultAttributes(GetWindowVariant());
763 }
764
765 static wxVisualAttributes
766 GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
767
768 // set/retrieve the window colours (system defaults are used by
769 // default): SetXXX() functions return true if colour was changed,
770 // SetDefaultXXX() reset the "m_inheritXXX" flag after setting the
771 // value to prevent it from being inherited by our children
772 virtual bool SetBackgroundColour(const wxColour& colour);
773 void SetOwnBackgroundColour(const wxColour& colour)
774 {
775 if ( SetBackgroundColour(colour) )
776 m_inheritBgCol = false;
777 }
778 wxColour GetBackgroundColour() const;
779 bool InheritsBackgroundColour() const
780 {
781 return m_inheritBgCol;
782 }
783 bool UseBgCol() const
784 {
785 return m_hasBgCol;
786 }
787
788 virtual bool SetForegroundColour(const wxColour& colour);
789 void SetOwnForegroundColour(const wxColour& colour)
790 {
791 if ( SetForegroundColour(colour) )
792 m_inheritFgCol = false;
793 }
794 wxColour GetForegroundColour() const;
795
796 // Set/get the background style.
797 // Pass one of wxBG_STYLE_SYSTEM, wxBG_STYLE_COLOUR, wxBG_STYLE_CUSTOM
798 virtual bool SetBackgroundStyle(wxBackgroundStyle style) { m_backgroundStyle = style; return true; }
799 virtual wxBackgroundStyle GetBackgroundStyle() const { return m_backgroundStyle; }
800
801 // returns true if the control has "transparent" areas such as a
802 // wxStaticText and wxCheckBox and the background should be adapted
803 // from a parent window
804 virtual bool HasTransparentBackground() { return false; }
805
806 // set/retrieve the font for the window (SetFont() returns true if the
807 // font really changed)
808 virtual bool SetFont(const wxFont& font) = 0;
809 void SetOwnFont(const wxFont& font)
810 {
811 if ( SetFont(font) )
812 m_inheritFont = false;
813 }
814 wxFont GetFont() const;
815
816 // set/retrieve the cursor for this window (SetCursor() returns true
817 // if the cursor was really changed)
818 virtual bool SetCursor( const wxCursor &cursor );
819 const wxCursor& GetCursor() const { return m_cursor; }
820
821 #if wxUSE_CARET
822 // associate a caret with the window
823 void SetCaret(wxCaret *caret);
824 // get the current caret (may be NULL)
825 wxCaret *GetCaret() const { return m_caret; }
826 #endif // wxUSE_CARET
827
828 // get the (average) character size for the current font
829 virtual int GetCharHeight() const = 0;
830 virtual int GetCharWidth() const = 0;
831
832 // get the width/height/... of the text using current or specified
833 // font
834 virtual void GetTextExtent(const wxString& string,
835 int *x, int *y,
836 int *descent = (int *) NULL,
837 int *externalLeading = (int *) NULL,
838 const wxFont *theFont = (const wxFont *) NULL)
839 const = 0;
840
841 // client <-> screen coords
842 // ------------------------
843
844 // translate to/from screen/client coordinates (pointers may be NULL)
845 void ClientToScreen( int *x, int *y ) const
846 { DoClientToScreen(x, y); }
847 void ScreenToClient( int *x, int *y ) const
848 { DoScreenToClient(x, y); }
849
850 // wxPoint interface to do the same thing
851 wxPoint ClientToScreen(const wxPoint& pt) const
852 {
853 int x = pt.x, y = pt.y;
854 DoClientToScreen(&x, &y);
855
856 return wxPoint(x, y);
857 }
858
859 wxPoint ScreenToClient(const wxPoint& pt) const
860 {
861 int x = pt.x, y = pt.y;
862 DoScreenToClient(&x, &y);
863
864 return wxPoint(x, y);
865 }
866
867 // test where the given (in client coords) point lies
868 wxHitTest HitTest(wxCoord x, wxCoord y) const
869 { return DoHitTest(x, y); }
870
871 wxHitTest HitTest(const wxPoint& pt) const
872 { return DoHitTest(pt.x, pt.y); }
873
874 // misc
875 // ----
876
877 // get the window border style from the given flags: this is different from
878 // simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to
879 // translate wxBORDER_DEFAULT to something reasonable
880 wxBorder GetBorder(long flags) const;
881
882 // get border for the flags of this window
883 wxBorder GetBorder() const { return GetBorder(GetWindowStyleFlag()); }
884
885 // send wxUpdateUIEvents to this window, and children if recurse is true
886 virtual void UpdateWindowUI(long flags = wxUPDATE_UI_NONE);
887
888 // do the window-specific processing after processing the update event
889 virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
890
891 #if wxUSE_MENUS
892 bool PopupMenu(wxMenu *menu, const wxPoint& pos = wxDefaultPosition)
893 { return DoPopupMenu(menu, pos.x, pos.y); }
894 bool PopupMenu(wxMenu *menu, int x, int y)
895 { return DoPopupMenu(menu, x, y); }
896 #endif // wxUSE_MENUS
897
898 // override this method to return true for controls having multiple pages
899 virtual bool HasMultiplePages() const { return false; }
900
901
902 // scrollbars
903 // ----------
904
905 // does the window have the scrollbar for this orientation?
906 bool HasScrollbar(int orient) const
907 {
908 return (m_windowStyle &
909 (orient == wxHORIZONTAL ? wxHSCROLL : wxVSCROLL)) != 0;
910 }
911
912 // configure the window scrollbars
913 virtual void SetScrollbar( int orient,
914 int pos,
915 int thumbvisible,
916 int range,
917 bool refresh = true ) = 0;
918 virtual void SetScrollPos( int orient, int pos, bool refresh = true ) = 0;
919 virtual int GetScrollPos( int orient ) const = 0;
920 virtual int GetScrollThumb( int orient ) const = 0;
921 virtual int GetScrollRange( int orient ) const = 0;
922
923 // scroll window to the specified position
924 virtual void ScrollWindow( int dx, int dy,
925 const wxRect* rect = (wxRect *) NULL ) = 0;
926
927 // scrolls window by line/page: note that not all controls support this
928 //
929 // return true if the position changed, false otherwise
930 virtual bool ScrollLines(int WXUNUSED(lines)) { return false; }
931 virtual bool ScrollPages(int WXUNUSED(pages)) { return false; }
932
933 // convenient wrappers for ScrollLines/Pages
934 bool LineUp() { return ScrollLines(-1); }
935 bool LineDown() { return ScrollLines(1); }
936 bool PageUp() { return ScrollPages(-1); }
937 bool PageDown() { return ScrollPages(1); }
938
939 // context-sensitive help
940 // ----------------------
941
942 // these are the convenience functions wrapping wxHelpProvider methods
943
944 #if wxUSE_HELP
945 // associate this help text with this window
946 void SetHelpText(const wxString& text);
947 // associate this help text with all windows with the same id as this
948 // one
949 void SetHelpTextForId(const wxString& text);
950 // get the help string associated with the given position in this window
951 //
952 // notice that pt may be invalid if event origin is keyboard or unknown
953 // and this method should return the global window help text then
954 virtual wxString GetHelpTextAtPoint(const wxPoint& pt,
955 wxHelpEvent::Origin origin) const;
956 // returns the position-independent help text
957 wxString GetHelpText() const
958 {
959 return GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Unknown);
960 }
961
962 #else // !wxUSE_HELP
963 // silently ignore SetHelpText() calls
964 void SetHelpText(const wxString& WXUNUSED(text)) { }
965 void SetHelpTextForId(const wxString& WXUNUSED(text)) { }
966 #endif // wxUSE_HELP
967
968 // tooltips
969 // --------
970
971 #if wxUSE_TOOLTIPS
972 // the easiest way to set a tooltip for a window is to use this method
973 void SetToolTip( const wxString &tip );
974 // attach a tooltip to the window
975 void SetToolTip( wxToolTip *tip ) { DoSetToolTip(tip); }
976 // get the associated tooltip or NULL if none
977 wxToolTip* GetToolTip() const { return m_tooltip; }
978 wxString GetToolTipText() const ;
979 #else
980 // make it much easier to compile apps in an environment
981 // that doesn't support tooltips, such as PocketPC
982 inline void SetToolTip( const wxString & WXUNUSED(tip) ) {}
983 #endif // wxUSE_TOOLTIPS
984
985 // drag and drop
986 // -------------
987 #if wxUSE_DRAG_AND_DROP
988 // set/retrieve the drop target associated with this window (may be
989 // NULL; it's owned by the window and will be deleted by it)
990 virtual void SetDropTarget( wxDropTarget *dropTarget ) = 0;
991 virtual wxDropTarget *GetDropTarget() const { return m_dropTarget; }
992 #endif // wxUSE_DRAG_AND_DROP
993
994 // constraints and sizers
995 // ----------------------
996 #if wxUSE_CONSTRAINTS
997 // set the constraints for this window or retrieve them (may be NULL)
998 void SetConstraints( wxLayoutConstraints *constraints );
999 wxLayoutConstraints *GetConstraints() const { return m_constraints; }
1000
1001 // implementation only
1002 void UnsetConstraints(wxLayoutConstraints *c);
1003 wxWindowList *GetConstraintsInvolvedIn() const
1004 { return m_constraintsInvolvedIn; }
1005 void AddConstraintReference(wxWindowBase *otherWin);
1006 void RemoveConstraintReference(wxWindowBase *otherWin);
1007 void DeleteRelatedConstraints();
1008 void ResetConstraints();
1009
1010 // these methods may be overridden for special layout algorithms
1011 virtual void SetConstraintSizes(bool recurse = true);
1012 virtual bool LayoutPhase1(int *noChanges);
1013 virtual bool LayoutPhase2(int *noChanges);
1014 virtual bool DoPhase(int phase);
1015
1016 // these methods are virtual but normally won't be overridden
1017 virtual void SetSizeConstraint(int x, int y, int w, int h);
1018 virtual void MoveConstraint(int x, int y);
1019 virtual void GetSizeConstraint(int *w, int *h) const ;
1020 virtual void GetClientSizeConstraint(int *w, int *h) const ;
1021 virtual void GetPositionConstraint(int *x, int *y) const ;
1022
1023 #endif // wxUSE_CONSTRAINTS
1024
1025 // when using constraints or sizers, it makes sense to update
1026 // children positions automatically whenever the window is resized
1027 // - this is done if autoLayout is on
1028 void SetAutoLayout( bool autoLayout ) { m_autoLayout = autoLayout; }
1029 bool GetAutoLayout() const { return m_autoLayout; }
1030
1031 // lay out the window and its children
1032 virtual bool Layout();
1033
1034 // sizers
1035 void SetSizer(wxSizer *sizer, bool deleteOld = true );
1036 void SetSizerAndFit( wxSizer *sizer, bool deleteOld = true );
1037
1038 wxSizer *GetSizer() const { return m_windowSizer; }
1039
1040 // Track if this window is a member of a sizer
1041 void SetContainingSizer(wxSizer* sizer);
1042 wxSizer *GetContainingSizer() const { return m_containingSizer; }
1043
1044 // accessibility
1045 // ----------------------
1046 #if wxUSE_ACCESSIBILITY
1047 // Override to create a specific accessible object.
1048 virtual wxAccessible* CreateAccessible();
1049
1050 // Sets the accessible object.
1051 void SetAccessible(wxAccessible* accessible) ;
1052
1053 // Returns the accessible object.
1054 wxAccessible* GetAccessible() { return m_accessible; };
1055
1056 // Returns the accessible object, creating if necessary.
1057 wxAccessible* GetOrCreateAccessible() ;
1058 #endif
1059
1060
1061 // Set window transparency if the platform supports it
1062 virtual bool SetTransparent(wxByte WXUNUSED(alpha)) { return false; }
1063 virtual bool CanSetTransparent() { return false; }
1064
1065
1066 // implementation
1067 // --------------
1068
1069 // event handlers
1070 void OnSysColourChanged( wxSysColourChangedEvent& event );
1071 void OnInitDialog( wxInitDialogEvent &event );
1072 void OnMiddleClick( wxMouseEvent& event );
1073 #if wxUSE_HELP
1074 void OnHelp(wxHelpEvent& event);
1075 #endif // wxUSE_HELP
1076
1077 // virtual function for implementing internal idle
1078 // behaviour
1079 virtual void OnInternalIdle() {}
1080
1081 // call internal idle recursively
1082 // void ProcessInternalIdle() ;
1083
1084 // get the handle of the window for the underlying window system: this
1085 // is only used for wxWin itself or for user code which wants to call
1086 // platform-specific APIs
1087 virtual WXWidget GetHandle() const = 0;
1088 // associate the window with a new native handle
1089 virtual void AssociateHandle(WXWidget WXUNUSED(handle)) { }
1090 // dissociate the current native handle from the window
1091 virtual void DissociateHandle() { }
1092
1093 #if wxUSE_PALETTE
1094 // Store the palette used by DCs in wxWindow so that the dcs can share
1095 // a palette. And we can respond to palette messages.
1096 wxPalette GetPalette() const { return m_palette; }
1097
1098 // When palette is changed tell the DC to set the system palette to the
1099 // new one.
1100 void SetPalette(const wxPalette& pal);
1101
1102 // return true if we have a specific palette
1103 bool HasCustomPalette() const { return m_hasCustomPalette; }
1104
1105 // return the first parent window with a custom palette or NULL
1106 wxWindow *GetAncestorWithCustomPalette() const;
1107 #endif // wxUSE_PALETTE
1108
1109 // inherit the parents visual attributes if they had been explicitly set
1110 // by the user (i.e. we don't inherit default attributes) and if we don't
1111 // have our own explicitly set
1112 virtual void InheritAttributes();
1113
1114 // returns false from here if this window doesn't want to inherit the
1115 // parents colours even if InheritAttributes() would normally do it
1116 //
1117 // this just provides a simple way to customize InheritAttributes()
1118 // behaviour in the most common case
1119 virtual bool ShouldInheritColours() const { return false; }
1120
1121 protected:
1122 // event handling specific to wxWindow
1123 virtual bool TryValidator(wxEvent& event);
1124 virtual bool TryParent(wxEvent& event);
1125
1126 // common part of MoveBefore/AfterInTabOrder()
1127 enum MoveKind
1128 {
1129 MoveBefore, // insert before the given window
1130 MoveAfter // insert after the given window
1131 };
1132 virtual void DoMoveInTabOrder(wxWindow *win, MoveKind move);
1133
1134 #if wxUSE_CONSTRAINTS
1135 // satisfy the constraints for the windows but don't set the window sizes
1136 void SatisfyConstraints();
1137 #endif // wxUSE_CONSTRAINTS
1138
1139 // Send the wxWindowDestroyEvent
1140 void SendDestroyEvent();
1141
1142 // returns the main window of composite control; this is the window
1143 // that FindFocus returns if the focus is in one of composite control's
1144 // windows
1145 virtual wxWindow *GetMainWindowOfCompositeControl()
1146 { return (wxWindow*)this; }
1147
1148 // the window id - a number which uniquely identifies a window among
1149 // its siblings unless it is wxID_ANY
1150 wxWindowID m_windowId;
1151
1152 // the parent window of this window (or NULL) and the list of the children
1153 // of this window
1154 wxWindow *m_parent;
1155 wxWindowList m_children;
1156
1157 // the minimal allowed size for the window (no minimal size if variable(s)
1158 // contain(s) wxDefaultCoord)
1159 int m_minWidth,
1160 m_minHeight,
1161 m_maxWidth,
1162 m_maxHeight;
1163
1164 // event handler for this window: usually is just 'this' but may be
1165 // changed with SetEventHandler()
1166 wxEvtHandler *m_eventHandler;
1167
1168 #if wxUSE_VALIDATORS
1169 // associated validator or NULL if none
1170 wxValidator *m_windowValidator;
1171 #endif // wxUSE_VALIDATORS
1172
1173 #if wxUSE_DRAG_AND_DROP
1174 wxDropTarget *m_dropTarget;
1175 #endif // wxUSE_DRAG_AND_DROP
1176
1177 // visual window attributes
1178 wxCursor m_cursor;
1179 wxFont m_font; // see m_hasFont
1180 wxColour m_backgroundColour, // m_hasBgCol
1181 m_foregroundColour; // m_hasFgCol
1182
1183 #if wxUSE_CARET
1184 wxCaret *m_caret;
1185 #endif // wxUSE_CARET
1186
1187 // the region which should be repainted in response to paint event
1188 wxRegion m_updateRegion;
1189
1190 #if wxUSE_ACCEL
1191 // the accelerator table for the window which translates key strokes into
1192 // command events
1193 wxAcceleratorTable m_acceleratorTable;
1194 #endif // wxUSE_ACCEL
1195
1196 // the tooltip for this window (may be NULL)
1197 #if wxUSE_TOOLTIPS
1198 wxToolTip *m_tooltip;
1199 #endif // wxUSE_TOOLTIPS
1200
1201 // constraints and sizers
1202 #if wxUSE_CONSTRAINTS
1203 // the constraints for this window or NULL
1204 wxLayoutConstraints *m_constraints;
1205
1206 // constraints this window is involved in
1207 wxWindowList *m_constraintsInvolvedIn;
1208 #endif // wxUSE_CONSTRAINTS
1209
1210 // this window's sizer
1211 wxSizer *m_windowSizer;
1212
1213 // The sizer this window is a member of, if any
1214 wxSizer *m_containingSizer;
1215
1216 // Layout() window automatically when its size changes?
1217 bool m_autoLayout:1;
1218
1219 // window state
1220 bool m_isShown:1;
1221 bool m_isEnabled:1;
1222 bool m_isBeingDeleted:1;
1223
1224 // was the window colours/font explicitly changed by user?
1225 bool m_hasBgCol:1;
1226 bool m_hasFgCol:1;
1227 bool m_hasFont:1;
1228
1229 // and should it be inherited by children?
1230 bool m_inheritBgCol:1;
1231 bool m_inheritFgCol:1;
1232 bool m_inheritFont:1;
1233
1234 // window attributes
1235 long m_windowStyle,
1236 m_exStyle;
1237 wxString m_windowName;
1238 bool m_themeEnabled;
1239 wxBackgroundStyle m_backgroundStyle;
1240 #if wxUSE_PALETTE
1241 wxPalette m_palette;
1242 bool m_hasCustomPalette;
1243 #endif // wxUSE_PALETTE
1244
1245 #if wxUSE_ACCESSIBILITY
1246 wxAccessible* m_accessible;
1247 #endif
1248
1249 // Virtual size (scrolling)
1250 wxSize m_virtualSize;
1251
1252 wxScrollHelper *m_scrollHelper;
1253
1254 int m_minVirtualWidth; // VirtualSizeHints
1255 int m_minVirtualHeight;
1256 int m_maxVirtualWidth;
1257 int m_maxVirtualHeight;
1258
1259 wxWindowVariant m_windowVariant ;
1260
1261 // override this to change the default (i.e. used when no style is
1262 // specified) border for the window class
1263 virtual wxBorder GetDefaultBorder() const;
1264
1265 // Get the default size for the new window if no explicit size given. TLWs
1266 // have their own default size so this is just for non top-level windows.
1267 static int WidthDefault(int w) { return w == wxDefaultCoord ? 20 : w; }
1268 static int HeightDefault(int h) { return h == wxDefaultCoord ? 20 : h; }
1269
1270
1271 // Used to save the results of DoGetBestSize so it doesn't need to be
1272 // recalculated each time the value is needed.
1273 wxSize m_bestSizeCache;
1274
1275 // keep the old name for compatibility, at least until all the internal
1276 // usages of it are changed to SetBestFittingSize
1277 void SetBestSize(const wxSize& size) { SetBestFittingSize(size); }
1278
1279 // set the initial window size if none is given (i.e. at least one of the
1280 // components of the size passed to ctor/Create() is wxDefaultCoord)
1281 //
1282 // normally just calls SetBestSize() for controls, but can be overridden
1283 // not to do it for the controls which have to do some additional
1284 // initialization (e.g. add strings to list box) before their best size
1285 // can be accurately calculated
1286 virtual void SetInitialBestSize(const wxSize& WXUNUSED(size)) {}
1287
1288
1289
1290 // more pure virtual functions
1291 // ---------------------------
1292
1293 // NB: we must have DoSomething() function when Something() is an overloaded
1294 // method: indeed, we can't just have "virtual Something()" in case when
1295 // the function is overloaded because then we'd have to make virtual all
1296 // the variants (otherwise only the virtual function may be called on a
1297 // pointer to derived class according to C++ rules) which is, in
1298 // general, absolutely not needed. So instead we implement all
1299 // overloaded Something()s in terms of DoSomething() which will be the
1300 // only one to be virtual.
1301
1302 // coordinates translation
1303 virtual void DoClientToScreen( int *x, int *y ) const = 0;
1304 virtual void DoScreenToClient( int *x, int *y ) const = 0;
1305
1306 virtual wxHitTest DoHitTest(wxCoord x, wxCoord y) const;
1307
1308 // capture/release the mouse, used by Capture/ReleaseMouse()
1309 virtual void DoCaptureMouse() = 0;
1310 virtual void DoReleaseMouse() = 0;
1311
1312 // retrieve the position/size of the window
1313 virtual void DoGetPosition(int *x, int *y) const = 0;
1314 virtual void DoGetScreenPosition(int *x, int *y) const;
1315 virtual void DoGetSize(int *width, int *height) const = 0;
1316 virtual void DoGetClientSize(int *width, int *height) const = 0;
1317
1318 // get the size which best suits the window: for a control, it would be
1319 // the minimal size which doesn't truncate the control, for a panel - the
1320 // same size as it would have after a call to Fit()
1321 virtual wxSize DoGetBestSize() const;
1322
1323 // called from DoGetBestSize() to convert best virtual size (returned by
1324 // the window sizer) to the best size for the window itself; this is
1325 // overridden at wxScrolledWindow level to clump down virtual size to real
1326 virtual wxSize GetWindowSizeForVirtualSize(const wxSize& size) const
1327 {
1328 return size;
1329 }
1330
1331 // this is the virtual function to be overriden in any derived class which
1332 // wants to change how SetSize() or Move() works - it is called by all
1333 // versions of these functions in the base class
1334 virtual void DoSetSize(int x, int y,
1335 int width, int height,
1336 int sizeFlags = wxSIZE_AUTO) = 0;
1337
1338 // same as DoSetSize() for the client size
1339 virtual void DoSetClientSize(int width, int height) = 0;
1340
1341 // move the window to the specified location and resize it: this is called
1342 // from both DoSetSize() and DoSetClientSize() and would usually just
1343 // reposition this window except for composite controls which will want to
1344 // arrange themselves inside the given rectangle
1345 //
1346 // Important note: the coordinates passed to this method are in parent's
1347 // *window* coordinates and not parent's client coordinates (as the values
1348 // passed to DoSetSize and returned by DoGetPosition are)!
1349 virtual void DoMoveWindow(int x, int y, int width, int height) = 0;
1350
1351 // centre the window in the specified direction on parent, note that
1352 // wxCENTRE_ON_SCREEN shouldn't be specified here, it only makes sense for
1353 // TLWs
1354 virtual void DoCentre(int dir);
1355
1356 #if wxUSE_TOOLTIPS
1357 virtual void DoSetToolTip( wxToolTip *tip );
1358 #endif // wxUSE_TOOLTIPS
1359
1360 #if wxUSE_MENUS
1361 virtual bool DoPopupMenu(wxMenu *menu, int x, int y) = 0;
1362 #endif // wxUSE_MENUS
1363
1364 // Makes an adjustment to the window position to make it relative to the
1365 // parents client area, e.g. if the parent is a frame with a toolbar, its
1366 // (0, 0) is just below the toolbar
1367 virtual void AdjustForParentClientOrigin(int& x, int& y,
1368 int sizeFlags = 0) const;
1369
1370 // implements the window variants
1371 virtual void DoSetWindowVariant( wxWindowVariant variant ) ;
1372
1373 // Must be called when mouse capture is lost to send
1374 // wxMouseCaptureLostEvent to windows on capture stack.
1375 static void NotifyCaptureLost();
1376
1377 private:
1378 // contains the last id generated by NewControlId
1379 static int ms_lastControlId;
1380
1381 // the stack of windows which have captured the mouse
1382 static struct WXDLLEXPORT wxWindowNext *ms_winCaptureNext;
1383 // the window that currently has mouse capture
1384 static wxWindow *ms_winCaptureCurrent;
1385 // indicates if execution is inside CaptureMouse/ReleaseMouse
1386 static bool ms_winCaptureChanging;
1387
1388 DECLARE_ABSTRACT_CLASS(wxWindowBase)
1389 DECLARE_NO_COPY_CLASS(wxWindowBase)
1390 DECLARE_EVENT_TABLE()
1391 };
1392
1393 // ----------------------------------------------------------------------------
1394 // now include the declaration of wxWindow class
1395 // ----------------------------------------------------------------------------
1396
1397 // include the declaration of the platform-specific class
1398 #if defined(__WXPALMOS__)
1399 #ifdef __WXUNIVERSAL__
1400 #define wxWindowNative wxWindowPalm
1401 #else // !wxUniv
1402 #define wxWindowPalm wxWindow
1403 #endif // wxUniv/!wxUniv
1404 #include "wx/palmos/window.h"
1405 #elif defined(__WXMSW__)
1406 #ifdef __WXUNIVERSAL__
1407 #define wxWindowNative wxWindowMSW
1408 #else // !wxUniv
1409 #define wxWindowMSW wxWindow
1410 #endif // wxUniv/!wxUniv
1411 #include "wx/msw/window.h"
1412 #elif defined(__WXMOTIF__)
1413 #include "wx/motif/window.h"
1414 #elif defined(__WXGTK20__)
1415 #ifdef __WXUNIVERSAL__
1416 #define wxWindowNative wxWindowGTK
1417 #else // !wxUniv
1418 #define wxWindowGTK wxWindow
1419 #endif // wxUniv
1420 #include "wx/gtk/window.h"
1421 #elif defined(__WXGTK__)
1422 #ifdef __WXUNIVERSAL__
1423 #define wxWindowNative wxWindowGTK
1424 #else // !wxUniv
1425 #define wxWindowGTK wxWindow
1426 #endif // wxUniv
1427 #include "wx/gtk1/window.h"
1428 #elif defined(__WXX11__)
1429 #ifdef __WXUNIVERSAL__
1430 #define wxWindowNative wxWindowX11
1431 #else // !wxUniv
1432 #define wxWindowX11 wxWindow
1433 #endif // wxUniv
1434 #include "wx/x11/window.h"
1435 #elif defined(__WXMGL__)
1436 #define wxWindowNative wxWindowMGL
1437 #include "wx/mgl/window.h"
1438 #elif defined(__WXDFB__)
1439 #define wxWindowNative wxWindowDFB
1440 #include "wx/dfb/window.h"
1441 #elif defined(__WXMAC__)
1442 #ifdef __WXUNIVERSAL__
1443 #define wxWindowNative wxWindowMac
1444 #else // !wxUniv
1445 #define wxWindowMac wxWindow
1446 #endif // wxUniv
1447 #include "wx/mac/window.h"
1448 #elif defined(__WXCOCOA__)
1449 #ifdef __WXUNIVERSAL__
1450 #define wxWindowNative wxWindowCocoa
1451 #else // !wxUniv
1452 #define wxWindowCocoa wxWindow
1453 #endif // wxUniv
1454 #include "wx/cocoa/window.h"
1455 #elif defined(__WXPM__)
1456 #ifdef __WXUNIVERSAL__
1457 #define wxWindowNative wxWindowOS2
1458 #else // !wxUniv
1459 #define wxWindowOS2 wxWindow
1460 #endif // wxUniv/!wxUniv
1461 #include "wx/os2/window.h"
1462 #endif
1463
1464 // for wxUniversal, we now derive the real wxWindow from wxWindow<platform>,
1465 // for the native ports we already have defined it above
1466 #if defined(__WXUNIVERSAL__)
1467 #ifndef wxWindowNative
1468 #error "wxWindowNative must be defined above!"
1469 #endif
1470
1471 #include "wx/univ/window.h"
1472 #endif // wxUniv
1473
1474 // ----------------------------------------------------------------------------
1475 // inline functions which couldn't be declared in the class body because of
1476 // forward dependencies
1477 // ----------------------------------------------------------------------------
1478
1479 inline wxWindow *wxWindowBase::GetGrandParent() const
1480 {
1481 return m_parent ? m_parent->GetParent() : (wxWindow *)NULL;
1482 }
1483
1484 // ----------------------------------------------------------------------------
1485 // global functions
1486 // ----------------------------------------------------------------------------
1487
1488 // Find the wxWindow at the current mouse position, also returning the mouse
1489 // position.
1490 extern WXDLLEXPORT wxWindow* wxFindWindowAtPointer(wxPoint& pt);
1491
1492 // Get the current mouse position.
1493 extern WXDLLEXPORT wxPoint wxGetMousePosition();
1494
1495 // get the currently active window of this application or NULL
1496 extern WXDLLEXPORT wxWindow *wxGetActiveWindow();
1497
1498 // get the (first) top level parent window
1499 WXDLLEXPORT wxWindow* wxGetTopLevelParent(wxWindow *win);
1500
1501 #if WXWIN_COMPATIBILITY_2_6
1502 // deprecated (doesn't start with 'wx' prefix), use wxWindow::NewControlId()
1503 wxDEPRECATED( int NewControlId() );
1504 inline int NewControlId() { return wxWindowBase::NewControlId(); }
1505 #endif // WXWIN_COMPATIBILITY_2_6
1506
1507 #if wxUSE_ACCESSIBILITY
1508 // ----------------------------------------------------------------------------
1509 // accessible object for windows
1510 // ----------------------------------------------------------------------------
1511
1512 class WXDLLEXPORT wxWindowAccessible: public wxAccessible
1513 {
1514 public:
1515 wxWindowAccessible(wxWindow* win): wxAccessible(win) { if (win) win->SetAccessible(this); }
1516 virtual ~wxWindowAccessible() {}
1517
1518 // Overridables
1519
1520 // Can return either a child object, or an integer
1521 // representing the child element, starting from 1.
1522 virtual wxAccStatus HitTest(const wxPoint& pt, int* childId, wxAccessible** childObject);
1523
1524 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
1525 virtual wxAccStatus GetLocation(wxRect& rect, int elementId);
1526
1527 // Navigates from fromId to toId/toObject.
1528 virtual wxAccStatus Navigate(wxNavDir navDir, int fromId,
1529 int* toId, wxAccessible** toObject);
1530
1531 // Gets the name of the specified object.
1532 virtual wxAccStatus GetName(int childId, wxString* name);
1533
1534 // Gets the number of children.
1535 virtual wxAccStatus GetChildCount(int* childCount);
1536
1537 // Gets the specified child (starting from 1).
1538 // If *child is NULL and return value is wxACC_OK,
1539 // this means that the child is a simple element and
1540 // not an accessible object.
1541 virtual wxAccStatus GetChild(int childId, wxAccessible** child);
1542
1543 // Gets the parent, or NULL.
1544 virtual wxAccStatus GetParent(wxAccessible** parent);
1545
1546 // Performs the default action. childId is 0 (the action for this object)
1547 // or > 0 (the action for a child).
1548 // Return wxACC_NOT_SUPPORTED if there is no default action for this
1549 // window (e.g. an edit control).
1550 virtual wxAccStatus DoDefaultAction(int childId);
1551
1552 // Gets the default action for this object (0) or > 0 (the action for a child).
1553 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
1554 // string if there is no action.
1555 // The retrieved string describes the action that is performed on an object,
1556 // not what the object does as a result. For example, a toolbar button that prints
1557 // a document has a default action of "Press" rather than "Prints the current document."
1558 virtual wxAccStatus GetDefaultAction(int childId, wxString* actionName);
1559
1560 // Returns the description for this object or a child.
1561 virtual wxAccStatus GetDescription(int childId, wxString* description);
1562
1563 // Returns help text for this object or a child, similar to tooltip text.
1564 virtual wxAccStatus GetHelpText(int childId, wxString* helpText);
1565
1566 // Returns the keyboard shortcut for this object or child.
1567 // Return e.g. ALT+K
1568 virtual wxAccStatus GetKeyboardShortcut(int childId, wxString* shortcut);
1569
1570 // Returns a role constant.
1571 virtual wxAccStatus GetRole(int childId, wxAccRole* role);
1572
1573 // Returns a state constant.
1574 virtual wxAccStatus GetState(int childId, long* state);
1575
1576 // Returns a localized string representing the value for the object
1577 // or child.
1578 virtual wxAccStatus GetValue(int childId, wxString* strValue);
1579
1580 // Selects the object or child.
1581 virtual wxAccStatus Select(int childId, wxAccSelectionFlags selectFlags);
1582
1583 // Gets the window with the keyboard focus.
1584 // If childId is 0 and child is NULL, no object in
1585 // this subhierarchy has the focus.
1586 // If this object has the focus, child should be 'this'.
1587 virtual wxAccStatus GetFocus(int* childId, wxAccessible** child);
1588
1589 #if wxUSE_VARIANT
1590 // Gets a variant representing the selected children
1591 // of this object.
1592 // Acceptable values:
1593 // - a null variant (IsNull() returns true)
1594 // - a list variant (GetType() == wxT("list")
1595 // - an integer representing the selected child element,
1596 // or 0 if this object is selected (GetType() == wxT("long")
1597 // - a "void*" pointer to a wxAccessible child object
1598 virtual wxAccStatus GetSelections(wxVariant* selections);
1599 #endif // wxUSE_VARIANT
1600 };
1601
1602 #endif // wxUSE_ACCESSIBILITY
1603
1604
1605 #endif // _WX_WINDOW_H_BASE_