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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 // Define this macro if the corresponding operating system handles the state
54 // of children windows automatically when the parent is enabled/disabled.
55 // Otherwise wx itself must ensure that when the parent is disabled its
56 // children are disabled too, and their initial state is restored when the
57 // parent is enabled back.
58 #if defined(__WXMSW__) || defined(__WXPM__)
59 // must do everything ourselves
60 #undef wxHAS_NATIVE_ENABLED_MANAGEMENT
61 #else
62 #define wxHAS_NATIVE_ENABLED_MANAGEMENT
63 #endif
64
65 // ----------------------------------------------------------------------------
66 // forward declarations
67 // ----------------------------------------------------------------------------
68
69 class WXDLLEXPORT wxCaret;
70 class WXDLLEXPORT wxControl;
71 class WXDLLEXPORT wxCursor;
72 class WXDLLEXPORT wxDC;
73 class WXDLLEXPORT wxDropTarget;
74 class WXDLLEXPORT wxItemResource;
75 class WXDLLEXPORT wxLayoutConstraints;
76 class WXDLLEXPORT wxResourceTable;
77 class WXDLLEXPORT wxSizer;
78 class WXDLLEXPORT wxToolTip;
79 class WXDLLEXPORT wxWindowBase;
80 class WXDLLEXPORT wxWindow;
81 class WXDLLEXPORT wxScrollHelper;
82
83 #if wxUSE_ACCESSIBILITY
84 class WXDLLEXPORT wxAccessible;
85 #endif
86
87 // ----------------------------------------------------------------------------
88 // helper stuff used by wxWindow
89 // ----------------------------------------------------------------------------
90
91 // struct containing all the visual attributes of a control
92 struct WXDLLEXPORT wxVisualAttributes
93 {
94 // the font used for control label/text inside it
95 wxFont font;
96
97 // the foreground colour
98 wxColour colFg;
99
100 // the background colour, may be wxNullColour if the controls background
101 // colour is not solid
102 wxColour colBg;
103 };
104
105 // different window variants, on platforms like eg mac uses different
106 // rendering sizes
107 enum wxWindowVariant
108 {
109 wxWINDOW_VARIANT_NORMAL, // Normal size
110 wxWINDOW_VARIANT_SMALL, // Smaller size (about 25 % smaller than normal)
111 wxWINDOW_VARIANT_MINI, // Mini size (about 33 % smaller than normal)
112 wxWINDOW_VARIANT_LARGE, // Large size (about 25 % larger than normal)
113 wxWINDOW_VARIANT_MAX
114 };
115
116 #if wxUSE_SYSTEM_OPTIONS
117 #define wxWINDOW_DEFAULT_VARIANT wxT("window-default-variant")
118 #endif
119
120 // ----------------------------------------------------------------------------
121 // (pseudo)template list classes
122 // ----------------------------------------------------------------------------
123
124 WX_DECLARE_LIST_3(wxWindow, wxWindowBase, wxWindowList, wxWindowListNode, class WXDLLEXPORT);
125
126 // ----------------------------------------------------------------------------
127 // global variables
128 // ----------------------------------------------------------------------------
129
130 extern WXDLLEXPORT_DATA(wxWindowList) wxTopLevelWindows;
131 extern WXDLLIMPEXP_DATA_CORE(wxList) wxPendingDelete;
132
133 // ----------------------------------------------------------------------------
134 // wxWindowBase is the base class for all GUI controls/widgets, this is the public
135 // interface of this class.
136 //
137 // Event handler: windows have themselves as their event handlers by default,
138 // but their event handlers could be set to another object entirely. This
139 // separation can reduce the amount of derivation required, and allow
140 // alteration of a window's functionality (e.g. by a resource editor that
141 // temporarily switches event handlers).
142 // ----------------------------------------------------------------------------
143
144 class WXDLLEXPORT wxWindowBase : public wxEvtHandler
145 {
146 public:
147 // creating the window
148 // -------------------
149
150 // default ctor, initializes everything which can be initialized before
151 // Create()
152 wxWindowBase() ;
153
154 // pseudo ctor (can't be virtual, called from ctor)
155 bool CreateBase(wxWindowBase *parent,
156 wxWindowID winid,
157 const wxPoint& pos = wxDefaultPosition,
158 const wxSize& size = wxDefaultSize,
159 long style = 0,
160 const wxValidator& validator = wxDefaultValidator,
161 const wxString& name = wxPanelNameStr);
162
163 virtual ~wxWindowBase();
164
165 // deleting the window
166 // -------------------
167
168 // ask the window to close itself, return true if the event handler
169 // honoured our request
170 bool Close( bool force = false );
171
172 // the following functions delete the C++ objects (the window itself
173 // or its children) as well as the GUI windows and normally should
174 // never be used directly
175
176 // delete window unconditionally (dangerous!), returns true if ok
177 virtual bool Destroy();
178 // delete all children of this window, returns true if ok
179 bool DestroyChildren();
180
181 // is the window being deleted?
182 bool IsBeingDeleted() const { return m_isBeingDeleted; }
183
184 // window attributes
185 // -----------------
186
187 // label is just the same as the title (but for, e.g., buttons it
188 // makes more sense to speak about labels), title access
189 // is available from wxTLW classes only (frames, dialogs)
190 virtual void SetLabel(const wxString& label) = 0;
191 virtual wxString GetLabel() const = 0;
192
193 // the window name is used for ressource setting in X, it is not the
194 // same as the window title/label
195 virtual void SetName( const wxString &name ) { m_windowName = name; }
196 virtual wxString GetName() const { return m_windowName; }
197
198 // sets the window variant, calls internally DoSetVariant if variant
199 // has changed
200 void SetWindowVariant(wxWindowVariant variant);
201 wxWindowVariant GetWindowVariant() const { return m_windowVariant; }
202
203
204 // window id uniquely identifies the window among its siblings unless
205 // it is wxID_ANY which means "don't care"
206 void SetId( wxWindowID winid ) { m_windowId = winid; }
207 wxWindowID GetId() const { return m_windowId; }
208
209 // get or change the layout direction (LTR or RTL) for this window,
210 // wxLayout_Default is returned if layout direction is not supported
211 virtual wxLayoutDirection GetLayoutDirection() const
212 { return wxLayout_Default; }
213 virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
214 { }
215
216 // mirror coordinates for RTL layout if this window uses it and if the
217 // mirroring is not done automatically like Win32
218 virtual wxCoord AdjustForLayoutDirection(wxCoord x,
219 wxCoord width,
220 wxCoord widthTotal) const;
221
222 // generate a control id for the controls which were not given one by
223 // user
224 static int NewControlId() { return --ms_lastControlId; }
225 // get the id of the control following the one with the given
226 // (autogenerated) id
227 static int NextControlId(int winid) { return winid - 1; }
228 // get the id of the control preceding the one with the given
229 // (autogenerated) id
230 static int PrevControlId(int winid) { return winid + 1; }
231
232 // moving/resizing
233 // ---------------
234
235 // set the window size and/or position
236 void SetSize( int x, int y, int width, int height,
237 int sizeFlags = wxSIZE_AUTO )
238 { DoSetSize(x, y, width, height, sizeFlags); }
239
240 void SetSize( int width, int height )
241 { DoSetSize( wxDefaultCoord, wxDefaultCoord, width, height, wxSIZE_USE_EXISTING ); }
242
243 void SetSize( const wxSize& size )
244 { SetSize( size.x, size.y); }
245
246 void SetSize(const wxRect& rect, int sizeFlags = wxSIZE_AUTO)
247 { DoSetSize(rect.x, rect.y, rect.width, rect.height, sizeFlags); }
248
249 void Move(int x, int y, int flags = wxSIZE_USE_EXISTING)
250 { DoSetSize(x, y, wxDefaultCoord, wxDefaultCoord, flags); }
251
252 void Move(const wxPoint& pt, int flags = wxSIZE_USE_EXISTING)
253 { Move(pt.x, pt.y, flags); }
254
255 void SetPosition(const wxPoint& pt) { Move(pt); }
256
257 // Z-order
258 virtual void Raise() = 0;
259 virtual void Lower() = 0;
260
261 // client size is the size of area available for subwindows
262 void SetClientSize( int width, int height )
263 { DoSetClientSize(width, height); }
264
265 void SetClientSize( const wxSize& size )
266 { DoSetClientSize(size.x, size.y); }
267
268 void SetClientSize(const wxRect& rect)
269 { SetClientSize( rect.width, rect.height ); }
270
271 // get the window position (pointers may be NULL): notice that it is in
272 // client coordinates for child windows and screen coordinates for the
273 // top level ones, use GetScreenPosition() if you need screen
274 // coordinates for all kinds of windows
275 void GetPosition( int *x, int *y ) const { DoGetPosition(x, y); }
276 wxPoint GetPosition() const
277 {
278 int x, y;
279 DoGetPosition(&x, &y);
280
281 return wxPoint(x, y);
282 }
283
284 // get the window position in screen coordinates
285 void GetScreenPosition(int *x, int *y) const { DoGetScreenPosition(x, y); }
286 wxPoint GetScreenPosition() const
287 {
288 int x, y;
289 DoGetScreenPosition(&x, &y);
290
291 return wxPoint(x, y);
292 }
293
294 // get the window size (pointers may be NULL)
295 void GetSize( int *w, int *h ) const { DoGetSize(w, h); }
296 wxSize GetSize() const
297 {
298 int w, h;
299 DoGetSize(& w, & h);
300 return wxSize(w, h);
301 }
302
303 void GetClientSize( int *w, int *h ) const { DoGetClientSize(w, h); }
304 wxSize GetClientSize() const
305 {
306 int w, h;
307 DoGetClientSize(&w, &h);
308
309 return wxSize(w, h);
310 }
311
312 // get the position and size at once
313 wxRect GetRect() const
314 {
315 int x, y, w, h;
316 GetPosition(&x, &y);
317 GetSize(&w, &h);
318
319 return wxRect(x, y, w, h);
320 }
321
322 wxRect GetScreenRect() const
323 {
324 int x, y, w, h;
325 GetScreenPosition(&x, &y);
326 GetSize(&w, &h);
327
328 return wxRect(x, y, w, h);
329 }
330
331 // get the origin of the client area of the window relative to the
332 // window top left corner (the client area may be shifted because of
333 // the borders, scrollbars, other decorations...)
334 virtual wxPoint GetClientAreaOrigin() const;
335
336 // get the client rectangle in window (i.e. client) coordinates
337 wxRect GetClientRect() const
338 {
339 return wxRect(GetClientAreaOrigin(), GetClientSize());
340 }
341
342 // get the size best suited for the window (in fact, minimal
343 // acceptable size using which it will still look "nice" in
344 // most situations)
345 wxSize GetBestSize() const
346 {
347 if (m_bestSizeCache.IsFullySpecified())
348 return m_bestSizeCache;
349 return DoGetBestSize();
350 }
351 void GetBestSize(int *w, int *h) const
352 {
353 wxSize s = GetBestSize();
354 if ( w )
355 *w = s.x;
356 if ( h )
357 *h = s.y;
358 }
359
360 void SetScrollHelper( wxScrollHelper *sh ) { m_scrollHelper = sh; }
361 wxScrollHelper *GetScrollHelper() { return m_scrollHelper; }
362
363 // reset the cached best size value so it will be recalculated the
364 // next time it is needed.
365 void InvalidateBestSize();
366 void CacheBestSize(const wxSize& size) const
367 { wxConstCast(this, wxWindowBase)->m_bestSizeCache = size; }
368
369
370 // This function will merge the window's best size into the window's
371 // minimum size, giving priority to the min size components, and
372 // returns the results.
373 wxSize GetEffectiveMinSize() const;
374 wxDEPRECATED( wxSize GetBestFittingSize() const ); // replaced by GetEffectiveMinSize
375 wxDEPRECATED( wxSize GetAdjustedMinSize() const ); // replaced by GetEffectiveMinSize
376
377 // A 'Smart' SetSize that will fill in default size values with 'best'
378 // size. Sets the minsize to what was passed in.
379 void SetInitialSize(const wxSize& size=wxDefaultSize);
380 wxDEPRECATED( void SetBestFittingSize(const wxSize& size=wxDefaultSize) ); // replaced by SetInitialSize
381
382
383 // the generic centre function - centers the window on parent by`
384 // default or on screen if it doesn't have parent or
385 // wxCENTER_ON_SCREEN flag is given
386 void Centre(int dir = wxBOTH) { DoCentre(dir); }
387 void Center(int dir = wxBOTH) { DoCentre(dir); }
388
389 // centre with respect to the the parent window
390 void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
391 void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
392
393 // set window size to wrap around its children
394 virtual void Fit();
395
396 // set virtual size to satisfy children
397 virtual void FitInside();
398
399
400 // SetSizeHints is actually for setting the size hints
401 // for the wxTLW for a Window Manager - hence the name -
402 // and it is therefore overridden in wxTLW to do that.
403 // In wxWindow(Base), it has (unfortunately) been abused
404 // to mean the same as SetMinSize() and SetMaxSize().
405
406 virtual void SetSizeHints( int minW, int minH,
407 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord,
408 int incW = wxDefaultCoord, int incH = wxDefaultCoord )
409 { DoSetSizeHints(minW, minH, maxW, maxH, incW, incH); }
410
411 void SetSizeHints( const wxSize& minSize,
412 const wxSize& maxSize=wxDefaultSize,
413 const wxSize& incSize=wxDefaultSize)
414 { DoSetSizeHints(minSize.x, minSize.y, maxSize.x, maxSize.y, incSize.x, incSize.y); }
415
416 virtual void DoSetSizeHints( int minW, int minH,
417 int maxW, int maxH,
418 int incW, int incH );
419
420 // Methods for setting virtual size hints
421 // FIXME: What are virtual size hints?
422
423 virtual void SetVirtualSizeHints( int minW, int minH,
424 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord );
425 void SetVirtualSizeHints( const wxSize& minSize,
426 const wxSize& maxSize=wxDefaultSize)
427 {
428 SetVirtualSizeHints(minSize.x, minSize.y, maxSize.x, maxSize.y);
429 }
430
431
432 // Call these to override what GetBestSize() returns. This
433 // method is only virtual because it is overriden in wxTLW
434 // as a different API for SetSizeHints().
435 virtual void SetMinSize(const wxSize& minSize) { m_minWidth = minSize.x; m_minHeight = minSize.y; }
436 virtual void SetMaxSize(const wxSize& maxSize) { m_maxWidth = maxSize.x; m_maxHeight = maxSize.y; }
437
438 // Override these methods to impose restrictions on min/max size.
439 // The easier way is to call SetMinSize() and SetMaxSize() which
440 // will have the same effect. Doing both is non-sense.
441 virtual wxSize GetMinSize() const { return wxSize(m_minWidth, m_minHeight); }
442 virtual wxSize GetMaxSize() const { return wxSize(m_maxWidth, m_maxHeight); }
443
444 // Get the min and max values one by one
445 int GetMinWidth() const { return GetMinSize().x; }
446 int GetMinHeight() const { return GetMinSize().y; }
447 int GetMaxWidth() const { return GetMaxSize().x; }
448 int GetMaxHeight() const { return GetMaxSize().y; }
449
450
451 // Methods for accessing the virtual size of a window. For most
452 // windows this is just the client area of the window, but for
453 // some like scrolled windows it is more or less independent of
454 // the screen window size. You may override the DoXXXVirtual
455 // methods below for classes where that is is the case.
456
457 void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
458 void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }
459
460 wxSize GetVirtualSize() const { return DoGetVirtualSize(); }
461 void GetVirtualSize( int *x, int *y ) const
462 {
463 wxSize s( DoGetVirtualSize() );
464
465 if( x )
466 *x = s.GetWidth();
467 if( y )
468 *y = s.GetHeight();
469 }
470
471 // Override these methods for windows that have a virtual size
472 // independent of their client size. eg. the virtual area of a
473 // wxScrolledWindow.
474
475 virtual void DoSetVirtualSize( int x, int y );
476 virtual wxSize DoGetVirtualSize() const;
477
478 // Return the largest of ClientSize and BestSize (as determined
479 // by a sizer, interior children, or other means)
480
481 virtual wxSize GetBestVirtualSize() const
482 {
483 wxSize client( GetClientSize() );
484 wxSize best( GetBestSize() );
485
486 return wxSize( wxMax( client.x, best.x ), wxMax( client.y, best.y ) );
487 }
488
489 // return the size of the left/right and top/bottom borders in x and y
490 // components of the result respectively
491 virtual wxSize GetWindowBorderSize() const;
492
493
494 // window state
495 // ------------
496
497 // returns true if window was shown/hidden, false if the nothing was
498 // done (window was already shown/hidden)
499 virtual bool Show( bool show = true );
500 bool Hide() { return Show(false); }
501
502 // returns true if window was enabled/disabled, false if nothing done
503 virtual bool Enable( bool enable = true );
504 bool Disable() { return Enable(false); }
505
506 virtual bool IsShown() const { return m_isShown; }
507 // returns true if the window is really enabled and false otherwise,
508 // whether because it had been explicitly disabled itself or because
509 // its parent is currently disabled -- then this method returns false
510 // whatever is the intrinsic state of this window, use IsThisEnabled(0
511 // to retrieve it. In other words, this relation always holds:
512 //
513 // IsEnabled() == IsThisEnabled() && parent.IsEnabled()
514 //
515 bool IsEnabled() const;
516
517 // returns the internal window state independently of the parent(s)
518 // state, i.e. the state in which the window would be if all its
519 // parents were enabled (use IsEnabled() above to get the effective
520 // window state)
521 bool IsThisEnabled() const { return m_isEnabled; }
522
523 // returns true if the window is visible, i.e. IsShown() returns true
524 // if called on it and all its parents up to the first TLW
525 virtual bool IsShownOnScreen() const;
526
527 // get/set window style (setting style won't update the window and so
528 // is only useful for internal usage)
529 virtual void SetWindowStyleFlag( long style ) { m_windowStyle = style; }
530 virtual long GetWindowStyleFlag() const { return m_windowStyle; }
531
532 // just some (somewhat shorter) synonims
533 void SetWindowStyle( long style ) { SetWindowStyleFlag(style); }
534 long GetWindowStyle() const { return GetWindowStyleFlag(); }
535
536 // check if the flag is set
537 bool HasFlag(int flag) const { return (m_windowStyle & flag) != 0; }
538 virtual bool IsRetained() const { return HasFlag(wxRETAINED); }
539
540 // turn the flag on if it had been turned off before and vice versa,
541 // return true if the flag is currently turned on
542 bool ToggleWindowStyle(int flag);
543
544 // extra style: the less often used style bits which can't be set with
545 // SetWindowStyleFlag()
546 virtual void SetExtraStyle(long exStyle) { m_exStyle = exStyle; }
547 long GetExtraStyle() const { return m_exStyle; }
548
549 // make the window modal (all other windows unresponsive)
550 virtual void MakeModal(bool modal = true);
551
552
553 // (primitive) theming support
554 // ---------------------------
555
556 virtual void SetThemeEnabled(bool enableTheme) { m_themeEnabled = enableTheme; }
557 virtual bool GetThemeEnabled() const { return m_themeEnabled; }
558
559
560 // focus and keyboard handling
561 // ---------------------------
562
563 // set focus to this window
564 virtual void SetFocus() = 0;
565
566 // set focus to this window as the result of a keyboard action
567 virtual void SetFocusFromKbd() { SetFocus(); }
568
569 // return the window which currently has the focus or NULL
570 static wxWindow *FindFocus();
571
572 static wxWindow *DoFindFocus() /* = 0: implement in derived classes */;
573
574 // can this window have focus in principle?
575 //
576 // the difference between AcceptsFocus[FromKeyboard]() and CanAcceptFocus
577 // [FromKeyboard]() is that the former functions are meant to be
578 // overridden in the derived classes to simply return false if the
579 // control can't have focus, while the latter are meant to be used by
580 // this class clients and take into account the current window state
581 virtual bool AcceptsFocus() const { return true; }
582
583 // can this window have focus right now?
584 bool CanAcceptFocus() const { return AcceptsFocus() && IsShown() && IsEnabled(); }
585
586 // can this window be given focus by keyboard navigation? if not, the
587 // only way to give it focus (provided it accepts it at all) is to
588 // click it
589 virtual bool AcceptsFocusFromKeyboard() const { return AcceptsFocus(); }
590
591 // can this window be assigned focus from keyboard right now?
592 bool CanAcceptFocusFromKeyboard() const
593 { return AcceptsFocusFromKeyboard() && CanAcceptFocus(); }
594
595 // navigates inside this window
596 bool NavigateIn(int flags = wxNavigationKeyEvent::IsForward)
597 { return DoNavigateIn(flags); }
598
599 // navigates in the specified direction from this window, this is
600 // equivalent to GetParent()->NavigateIn()
601 bool Navigate(int flags = wxNavigationKeyEvent::IsForward)
602 { return m_parent && ((wxWindowBase *)m_parent)->DoNavigateIn(flags); }
603
604 // move this window just before/after the specified one in tab order
605 // (the other window must be our sibling!)
606 void MoveBeforeInTabOrder(wxWindow *win)
607 { DoMoveInTabOrder(win, MoveBefore); }
608 void MoveAfterInTabOrder(wxWindow *win)
609 { DoMoveInTabOrder(win, MoveAfter); }
610
611
612 // parent/children relations
613 // -------------------------
614
615 // get the list of children
616 const wxWindowList& GetChildren() const { return m_children; }
617 wxWindowList& GetChildren() { return m_children; }
618
619 // needed just for extended runtime
620 const wxWindowList& GetWindowChildren() const { return GetChildren() ; }
621
622 // get the parent or the parent of the parent
623 wxWindow *GetParent() const { return m_parent; }
624 inline wxWindow *GetGrandParent() const;
625
626 // is this window a top level one?
627 virtual bool IsTopLevel() const;
628
629 // it doesn't really change parent, use Reparent() instead
630 void SetParent( wxWindowBase *parent ) { m_parent = (wxWindow *)parent; }
631 // change the real parent of this window, return true if the parent
632 // was changed, false otherwise (error or newParent == oldParent)
633 virtual bool Reparent( wxWindowBase *newParent );
634
635 // implementation mostly
636 virtual void AddChild( wxWindowBase *child );
637 virtual void RemoveChild( wxWindowBase *child );
638
639 // looking for windows
640 // -------------------
641
642 // find window among the descendants of this one either by id or by
643 // name (return NULL if not found)
644 wxWindow *FindWindow(long winid) const;
645 wxWindow *FindWindow(const wxString& name) const;
646
647 // Find a window among any window (all return NULL if not found)
648 static wxWindow *FindWindowById( long winid, const wxWindow *parent = NULL );
649 static wxWindow *FindWindowByName( const wxString& name,
650 const wxWindow *parent = NULL );
651 static wxWindow *FindWindowByLabel( const wxString& label,
652 const wxWindow *parent = NULL );
653
654 // event handler stuff
655 // -------------------
656
657 // get the current event handler
658 wxEvtHandler *GetEventHandler() const { return m_eventHandler; }
659
660 // replace the event handler (allows to completely subclass the
661 // window)
662 void SetEventHandler( wxEvtHandler *handler ) { m_eventHandler = handler; }
663
664 // push/pop event handler: allows to chain a custom event handler to
665 // alreasy existing ones
666 void PushEventHandler( wxEvtHandler *handler );
667 wxEvtHandler *PopEventHandler( bool deleteHandler = false );
668
669 // find the given handler in the event handler chain and remove (but
670 // not delete) it from the event handler chain, return true if it was
671 // found and false otherwise (this also results in an assert failure so
672 // this function should only be called when the handler is supposed to
673 // be there)
674 bool RemoveEventHandler(wxEvtHandler *handler);
675
676 // validators
677 // ----------
678
679 #if wxUSE_VALIDATORS
680 // a window may have an associated validator which is used to control
681 // user input
682 virtual void SetValidator( const wxValidator &validator );
683 virtual wxValidator *GetValidator() { return m_windowValidator; }
684 #endif // wxUSE_VALIDATORS
685
686
687 // dialog oriented functions
688 // -------------------------
689
690 // validate the correctness of input, return true if ok
691 virtual bool Validate();
692
693 // transfer data between internal and GUI representations
694 virtual bool TransferDataToWindow();
695 virtual bool TransferDataFromWindow();
696
697 virtual void InitDialog();
698
699 #if wxUSE_ACCEL
700 // accelerators
701 // ------------
702 virtual void SetAcceleratorTable( const wxAcceleratorTable& accel )
703 { m_acceleratorTable = accel; }
704 wxAcceleratorTable *GetAcceleratorTable()
705 { return &m_acceleratorTable; }
706
707 #endif // wxUSE_ACCEL
708
709 #if wxUSE_HOTKEY
710 // hot keys (system wide accelerators)
711 // -----------------------------------
712
713 virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
714 virtual bool UnregisterHotKey(int hotkeyId);
715 #endif // wxUSE_HOTKEY
716
717
718 // dialog units translations
719 // -------------------------
720
721 wxPoint ConvertPixelsToDialog( const wxPoint& pt );
722 wxPoint ConvertDialogToPixels( const wxPoint& pt );
723 wxSize ConvertPixelsToDialog( const wxSize& sz )
724 {
725 wxPoint pt(ConvertPixelsToDialog(wxPoint(sz.x, sz.y)));
726
727 return wxSize(pt.x, pt.y);
728 }
729
730 wxSize ConvertDialogToPixels( const wxSize& sz )
731 {
732 wxPoint pt(ConvertDialogToPixels(wxPoint(sz.x, sz.y)));
733
734 return wxSize(pt.x, pt.y);
735 }
736
737 // mouse functions
738 // ---------------
739
740 // move the mouse to the specified position
741 virtual void WarpPointer(int x, int y) = 0;
742
743 // start or end mouse capture, these functions maintain the stack of
744 // windows having captured the mouse and after calling ReleaseMouse()
745 // the mouse is not released but returns to the window which had had
746 // captured it previously (if any)
747 void CaptureMouse();
748 void ReleaseMouse();
749
750 // get the window which currently captures the mouse or NULL
751 static wxWindow *GetCapture();
752
753 // does this window have the capture?
754 virtual bool HasCapture() const
755 { return (wxWindow *)this == GetCapture(); }
756
757 // painting the window
758 // -------------------
759
760 // mark the specified rectangle (or the whole window) as "dirty" so it
761 // will be repainted
762 virtual void Refresh( bool eraseBackground = true,
763 const wxRect *rect = (const wxRect *) NULL ) = 0;
764
765 // a less awkward wrapper for Refresh
766 void RefreshRect(const wxRect& rect, bool eraseBackground = true)
767 {
768 Refresh(eraseBackground, &rect);
769 }
770
771 // repaint all invalid areas of the window immediately
772 virtual void Update() { }
773
774 // clear the window background
775 virtual void ClearBackground();
776
777 // freeze the window: don't redraw it until it is thawed
778 virtual void Freeze() { }
779
780 // thaw the window: redraw it after it had been frozen
781 virtual void Thaw() { }
782
783 // return true if window had been frozen and not unthawed yet
784 virtual bool IsFrozen() const { return false; }
785
786 // adjust DC for drawing on this window
787 virtual void PrepareDC( wxDC & WXUNUSED(dc) ) { }
788
789 // return true if the window contents is double buffered by the system
790 virtual bool IsDoubleBuffered() const { return false; }
791
792 // the update region of the window contains the areas which must be
793 // repainted by the program
794 const wxRegion& GetUpdateRegion() const { return m_updateRegion; }
795 wxRegion& GetUpdateRegion() { return m_updateRegion; }
796
797 // get the update rectangleregion bounding box in client coords
798 wxRect GetUpdateClientRect() const;
799
800 // these functions verify whether the given point/rectangle belongs to
801 // (or at least intersects with) the update region
802 virtual bool DoIsExposed( int x, int y ) const;
803 virtual bool DoIsExposed( int x, int y, int w, int h ) const;
804
805 bool IsExposed( int x, int y ) const
806 { return DoIsExposed(x, y); }
807 bool IsExposed( int x, int y, int w, int h ) const
808 { return DoIsExposed(x, y, w, h); }
809 bool IsExposed( const wxPoint& pt ) const
810 { return DoIsExposed(pt.x, pt.y); }
811 bool IsExposed( const wxRect& rect ) const
812 { return DoIsExposed(rect.x, rect.y, rect.width, rect.height); }
813
814 // colours, fonts and cursors
815 // --------------------------
816
817 // get the default attributes for the controls of this class: we
818 // provide a virtual function which can be used to query the default
819 // attributes of an existing control and a static function which can
820 // be used even when no existing object of the given class is
821 // available, but which won't return any styles specific to this
822 // particular control, of course (e.g. "Ok" button might have
823 // different -- bold for example -- font)
824 virtual wxVisualAttributes GetDefaultAttributes() const
825 {
826 return GetClassDefaultAttributes(GetWindowVariant());
827 }
828
829 static wxVisualAttributes
830 GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
831
832 // set/retrieve the window colours (system defaults are used by
833 // default): SetXXX() functions return true if colour was changed,
834 // SetDefaultXXX() reset the "m_inheritXXX" flag after setting the
835 // value to prevent it from being inherited by our children
836 virtual bool SetBackgroundColour(const wxColour& colour);
837 void SetOwnBackgroundColour(const wxColour& colour)
838 {
839 if ( SetBackgroundColour(colour) )
840 m_inheritBgCol = false;
841 }
842 wxColour GetBackgroundColour() const;
843 bool InheritsBackgroundColour() const
844 {
845 return m_inheritBgCol;
846 }
847 bool UseBgCol() const
848 {
849 return m_hasBgCol;
850 }
851
852 virtual bool SetForegroundColour(const wxColour& colour);
853 void SetOwnForegroundColour(const wxColour& colour)
854 {
855 if ( SetForegroundColour(colour) )
856 m_inheritFgCol = false;
857 }
858 wxColour GetForegroundColour() const;
859
860 // Set/get the background style.
861 // Pass one of wxBG_STYLE_SYSTEM, wxBG_STYLE_COLOUR, wxBG_STYLE_CUSTOM
862 virtual bool SetBackgroundStyle(wxBackgroundStyle style) { m_backgroundStyle = style; return true; }
863 virtual wxBackgroundStyle GetBackgroundStyle() const { return m_backgroundStyle; }
864
865 // returns true if the control has "transparent" areas such as a
866 // wxStaticText and wxCheckBox and the background should be adapted
867 // from a parent window
868 virtual bool HasTransparentBackground() { return false; }
869
870 // set/retrieve the font for the window (SetFont() returns true if the
871 // font really changed)
872 virtual bool SetFont(const wxFont& font) = 0;
873 void SetOwnFont(const wxFont& font)
874 {
875 if ( SetFont(font) )
876 m_inheritFont = false;
877 }
878 wxFont GetFont() const;
879
880 // set/retrieve the cursor for this window (SetCursor() returns true
881 // if the cursor was really changed)
882 virtual bool SetCursor( const wxCursor &cursor );
883 const wxCursor& GetCursor() const { return m_cursor; }
884
885 #if wxUSE_CARET
886 // associate a caret with the window
887 void SetCaret(wxCaret *caret);
888 // get the current caret (may be NULL)
889 wxCaret *GetCaret() const { return m_caret; }
890 #endif // wxUSE_CARET
891
892 // get the (average) character size for the current font
893 virtual int GetCharHeight() const = 0;
894 virtual int GetCharWidth() const = 0;
895
896 // get the width/height/... of the text using current or specified
897 // font
898 virtual void GetTextExtent(const wxString& string,
899 int *x, int *y,
900 int *descent = (int *) NULL,
901 int *externalLeading = (int *) NULL,
902 const wxFont *theFont = (const wxFont *) NULL)
903 const = 0;
904
905 wxSize GetTextExtent(const wxString& string) const
906 {
907 wxCoord w, h;
908 GetTextExtent(string, &w, &h);
909 return wxSize(w, h);
910 }
911
912 // client <-> screen coords
913 // ------------------------
914
915 // translate to/from screen/client coordinates (pointers may be NULL)
916 void ClientToScreen( int *x, int *y ) const
917 { DoClientToScreen(x, y); }
918 void ScreenToClient( int *x, int *y ) const
919 { DoScreenToClient(x, y); }
920
921 // wxPoint interface to do the same thing
922 wxPoint ClientToScreen(const wxPoint& pt) const
923 {
924 int x = pt.x, y = pt.y;
925 DoClientToScreen(&x, &y);
926
927 return wxPoint(x, y);
928 }
929
930 wxPoint ScreenToClient(const wxPoint& pt) const
931 {
932 int x = pt.x, y = pt.y;
933 DoScreenToClient(&x, &y);
934
935 return wxPoint(x, y);
936 }
937
938 // test where the given (in client coords) point lies
939 wxHitTest HitTest(wxCoord x, wxCoord y) const
940 { return DoHitTest(x, y); }
941
942 wxHitTest HitTest(const wxPoint& pt) const
943 { return DoHitTest(pt.x, pt.y); }
944
945 // misc
946 // ----
947
948 // get the window border style from the given flags: this is different from
949 // simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to
950 // translate wxBORDER_DEFAULT to something reasonable
951 wxBorder GetBorder(long flags) const;
952
953 // get border for the flags of this window
954 wxBorder GetBorder() const { return GetBorder(GetWindowStyleFlag()); }
955
956 // send wxUpdateUIEvents to this window, and children if recurse is true
957 virtual void UpdateWindowUI(long flags = wxUPDATE_UI_NONE);
958
959 // do the window-specific processing after processing the update event
960 virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
961
962 #if wxUSE_MENUS
963 bool PopupMenu(wxMenu *menu, const wxPoint& pos = wxDefaultPosition)
964 { return DoPopupMenu(menu, pos.x, pos.y); }
965 bool PopupMenu(wxMenu *menu, int x, int y)
966 { return DoPopupMenu(menu, x, y); }
967 #endif // wxUSE_MENUS
968
969 // override this method to return true for controls having multiple pages
970 virtual bool HasMultiplePages() const { return false; }
971
972
973 // scrollbars
974 // ----------
975
976 // does the window have the scrollbar for this orientation?
977 bool HasScrollbar(int orient) const
978 {
979 return (m_windowStyle &
980 (orient == wxHORIZONTAL ? wxHSCROLL : wxVSCROLL)) != 0;
981 }
982
983 // configure the window scrollbars
984 virtual void SetScrollbar( int orient,
985 int pos,
986 int thumbvisible,
987 int range,
988 bool refresh = true ) = 0;
989 virtual void SetScrollPos( int orient, int pos, bool refresh = true ) = 0;
990 virtual int GetScrollPos( int orient ) const = 0;
991 virtual int GetScrollThumb( int orient ) const = 0;
992 virtual int GetScrollRange( int orient ) const = 0;
993
994 // scroll window to the specified position
995 virtual void ScrollWindow( int dx, int dy,
996 const wxRect* rect = (wxRect *) NULL ) = 0;
997
998 // scrolls window by line/page: note that not all controls support this
999 //
1000 // return true if the position changed, false otherwise
1001 virtual bool ScrollLines(int WXUNUSED(lines)) { return false; }
1002 virtual bool ScrollPages(int WXUNUSED(pages)) { return false; }
1003
1004 // convenient wrappers for ScrollLines/Pages
1005 bool LineUp() { return ScrollLines(-1); }
1006 bool LineDown() { return ScrollLines(1); }
1007 bool PageUp() { return ScrollPages(-1); }
1008 bool PageDown() { return ScrollPages(1); }
1009
1010 // context-sensitive help
1011 // ----------------------
1012
1013 // these are the convenience functions wrapping wxHelpProvider methods
1014
1015 #if wxUSE_HELP
1016 // associate this help text with this window
1017 void SetHelpText(const wxString& text);
1018 // associate this help text with all windows with the same id as this
1019 // one
1020 void SetHelpTextForId(const wxString& text);
1021 // get the help string associated with the given position in this window
1022 //
1023 // notice that pt may be invalid if event origin is keyboard or unknown
1024 // and this method should return the global window help text then
1025 virtual wxString GetHelpTextAtPoint(const wxPoint& pt,
1026 wxHelpEvent::Origin origin) const;
1027 // returns the position-independent help text
1028 wxString GetHelpText() const
1029 {
1030 return GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Unknown);
1031 }
1032
1033 #else // !wxUSE_HELP
1034 // silently ignore SetHelpText() calls
1035 void SetHelpText(const wxString& WXUNUSED(text)) { }
1036 void SetHelpTextForId(const wxString& WXUNUSED(text)) { }
1037 #endif // wxUSE_HELP
1038
1039 // tooltips
1040 // --------
1041
1042 #if wxUSE_TOOLTIPS
1043 // the easiest way to set a tooltip for a window is to use this method
1044 void SetToolTip( const wxString &tip );
1045 // attach a tooltip to the window
1046 void SetToolTip( wxToolTip *tip ) { DoSetToolTip(tip); }
1047 // get the associated tooltip or NULL if none
1048 wxToolTip* GetToolTip() const { return m_tooltip; }
1049 wxString GetToolTipText() const ;
1050 #else
1051 // make it much easier to compile apps in an environment
1052 // that doesn't support tooltips, such as PocketPC
1053 inline void SetToolTip( const wxString & WXUNUSED(tip) ) {}
1054 #endif // wxUSE_TOOLTIPS
1055
1056 // drag and drop
1057 // -------------
1058 #if wxUSE_DRAG_AND_DROP
1059 // set/retrieve the drop target associated with this window (may be
1060 // NULL; it's owned by the window and will be deleted by it)
1061 virtual void SetDropTarget( wxDropTarget *dropTarget ) = 0;
1062 virtual wxDropTarget *GetDropTarget() const { return m_dropTarget; }
1063 #endif // wxUSE_DRAG_AND_DROP
1064
1065 // constraints and sizers
1066 // ----------------------
1067 #if wxUSE_CONSTRAINTS
1068 // set the constraints for this window or retrieve them (may be NULL)
1069 void SetConstraints( wxLayoutConstraints *constraints );
1070 wxLayoutConstraints *GetConstraints() const { return m_constraints; }
1071
1072 // implementation only
1073 void UnsetConstraints(wxLayoutConstraints *c);
1074 wxWindowList *GetConstraintsInvolvedIn() const
1075 { return m_constraintsInvolvedIn; }
1076 void AddConstraintReference(wxWindowBase *otherWin);
1077 void RemoveConstraintReference(wxWindowBase *otherWin);
1078 void DeleteRelatedConstraints();
1079 void ResetConstraints();
1080
1081 // these methods may be overridden for special layout algorithms
1082 virtual void SetConstraintSizes(bool recurse = true);
1083 virtual bool LayoutPhase1(int *noChanges);
1084 virtual bool LayoutPhase2(int *noChanges);
1085 virtual bool DoPhase(int phase);
1086
1087 // these methods are virtual but normally won't be overridden
1088 virtual void SetSizeConstraint(int x, int y, int w, int h);
1089 virtual void MoveConstraint(int x, int y);
1090 virtual void GetSizeConstraint(int *w, int *h) const ;
1091 virtual void GetClientSizeConstraint(int *w, int *h) const ;
1092 virtual void GetPositionConstraint(int *x, int *y) const ;
1093
1094 #endif // wxUSE_CONSTRAINTS
1095
1096 // when using constraints or sizers, it makes sense to update
1097 // children positions automatically whenever the window is resized
1098 // - this is done if autoLayout is on
1099 void SetAutoLayout( bool autoLayout ) { m_autoLayout = autoLayout; }
1100 bool GetAutoLayout() const { return m_autoLayout; }
1101
1102 // lay out the window and its children
1103 virtual bool Layout();
1104
1105 // sizers
1106 void SetSizer(wxSizer *sizer, bool deleteOld = true );
1107 void SetSizerAndFit( wxSizer *sizer, bool deleteOld = true );
1108
1109 wxSizer *GetSizer() const { return m_windowSizer; }
1110
1111 // Track if this window is a member of a sizer
1112 void SetContainingSizer(wxSizer* sizer);
1113 wxSizer *GetContainingSizer() const { return m_containingSizer; }
1114
1115 // accessibility
1116 // ----------------------
1117 #if wxUSE_ACCESSIBILITY
1118 // Override to create a specific accessible object.
1119 virtual wxAccessible* CreateAccessible();
1120
1121 // Sets the accessible object.
1122 void SetAccessible(wxAccessible* accessible) ;
1123
1124 // Returns the accessible object.
1125 wxAccessible* GetAccessible() { return m_accessible; };
1126
1127 // Returns the accessible object, creating if necessary.
1128 wxAccessible* GetOrCreateAccessible() ;
1129 #endif
1130
1131
1132 // Set window transparency if the platform supports it
1133 virtual bool SetTransparent(wxByte WXUNUSED(alpha)) { return false; }
1134 virtual bool CanSetTransparent() { return false; }
1135
1136
1137 // implementation
1138 // --------------
1139
1140 // event handlers
1141 void OnSysColourChanged( wxSysColourChangedEvent& event );
1142 void OnInitDialog( wxInitDialogEvent &event );
1143 void OnMiddleClick( wxMouseEvent& event );
1144 #if wxUSE_HELP
1145 void OnHelp(wxHelpEvent& event);
1146 #endif // wxUSE_HELP
1147
1148 // virtual function for implementing internal idle
1149 // behaviour
1150 virtual void OnInternalIdle() {}
1151
1152 // call internal idle recursively
1153 // void ProcessInternalIdle() ;
1154
1155 // get the handle of the window for the underlying window system: this
1156 // is only used for wxWin itself or for user code which wants to call
1157 // platform-specific APIs
1158 virtual WXWidget GetHandle() const = 0;
1159 // associate the window with a new native handle
1160 virtual void AssociateHandle(WXWidget WXUNUSED(handle)) { }
1161 // dissociate the current native handle from the window
1162 virtual void DissociateHandle() { }
1163
1164 #if wxUSE_PALETTE
1165 // Store the palette used by DCs in wxWindow so that the dcs can share
1166 // a palette. And we can respond to palette messages.
1167 wxPalette GetPalette() const { return m_palette; }
1168
1169 // When palette is changed tell the DC to set the system palette to the
1170 // new one.
1171 void SetPalette(const wxPalette& pal);
1172
1173 // return true if we have a specific palette
1174 bool HasCustomPalette() const { return m_hasCustomPalette; }
1175
1176 // return the first parent window with a custom palette or NULL
1177 wxWindow *GetAncestorWithCustomPalette() const;
1178 #endif // wxUSE_PALETTE
1179
1180 // inherit the parents visual attributes if they had been explicitly set
1181 // by the user (i.e. we don't inherit default attributes) and if we don't
1182 // have our own explicitly set
1183 virtual void InheritAttributes();
1184
1185 // returns false from here if this window doesn't want to inherit the
1186 // parents colours even if InheritAttributes() would normally do it
1187 //
1188 // this just provides a simple way to customize InheritAttributes()
1189 // behaviour in the most common case
1190 virtual bool ShouldInheritColours() const { return false; }
1191
1192 // returns true if the window can be positioned outside of parent's client
1193 // area (normal windows can't, but e.g. menubar or statusbar can):
1194 virtual bool CanBeOutsideClientArea() const { return false; }
1195
1196 protected:
1197 // event handling specific to wxWindow
1198 virtual bool TryValidator(wxEvent& event);
1199 virtual bool TryParent(wxEvent& event);
1200
1201 // common part of MoveBefore/AfterInTabOrder()
1202 enum MoveKind
1203 {
1204 MoveBefore, // insert before the given window
1205 MoveAfter // insert after the given window
1206 };
1207 virtual void DoMoveInTabOrder(wxWindow *win, MoveKind move);
1208
1209 // implementation of Navigate() and NavigateIn()
1210 virtual bool DoNavigateIn(int flags);
1211
1212
1213 #if wxUSE_CONSTRAINTS
1214 // satisfy the constraints for the windows but don't set the window sizes
1215 void SatisfyConstraints();
1216 #endif // wxUSE_CONSTRAINTS
1217
1218 // Send the wxWindowDestroyEvent
1219 void SendDestroyEvent();
1220
1221 // returns the main window of composite control; this is the window
1222 // that FindFocus returns if the focus is in one of composite control's
1223 // windows
1224 virtual wxWindow *GetMainWindowOfCompositeControl()
1225 { return (wxWindow*)this; }
1226
1227 // this method should be implemented to use operating system specific code
1228 // to really enable/disable the widget, it will only be called when we
1229 // really need to enable/disable window and so no additional checks on the
1230 // widgets state are necessary
1231 virtual void DoEnable(bool WXUNUSED(enable)) { }
1232
1233 // called when the on-screen widget state changes and provides an
1234 // an opportunity for the widget to update its visual state (colours,
1235 // fonts, anything else) as necessary
1236 virtual void OnEnabled(bool WXUNUSED(enabled)) { }
1237
1238
1239 // the window id - a number which uniquely identifies a window among
1240 // its siblings unless it is wxID_ANY
1241 wxWindowID m_windowId;
1242
1243 // the parent window of this window (or NULL) and the list of the children
1244 // of this window
1245 wxWindow *m_parent;
1246 wxWindowList m_children;
1247
1248 // the minimal allowed size for the window (no minimal size if variable(s)
1249 // contain(s) wxDefaultCoord)
1250 int m_minWidth,
1251 m_minHeight,
1252 m_maxWidth,
1253 m_maxHeight;
1254
1255 // event handler for this window: usually is just 'this' but may be
1256 // changed with SetEventHandler()
1257 wxEvtHandler *m_eventHandler;
1258
1259 #if wxUSE_VALIDATORS
1260 // associated validator or NULL if none
1261 wxValidator *m_windowValidator;
1262 #endif // wxUSE_VALIDATORS
1263
1264 #if wxUSE_DRAG_AND_DROP
1265 wxDropTarget *m_dropTarget;
1266 #endif // wxUSE_DRAG_AND_DROP
1267
1268 // visual window attributes
1269 wxCursor m_cursor;
1270 wxFont m_font; // see m_hasFont
1271 wxColour m_backgroundColour, // m_hasBgCol
1272 m_foregroundColour; // m_hasFgCol
1273
1274 #if wxUSE_CARET
1275 wxCaret *m_caret;
1276 #endif // wxUSE_CARET
1277
1278 // the region which should be repainted in response to paint event
1279 wxRegion m_updateRegion;
1280
1281 #if wxUSE_ACCEL
1282 // the accelerator table for the window which translates key strokes into
1283 // command events
1284 wxAcceleratorTable m_acceleratorTable;
1285 #endif // wxUSE_ACCEL
1286
1287 // the tooltip for this window (may be NULL)
1288 #if wxUSE_TOOLTIPS
1289 wxToolTip *m_tooltip;
1290 #endif // wxUSE_TOOLTIPS
1291
1292 // constraints and sizers
1293 #if wxUSE_CONSTRAINTS
1294 // the constraints for this window or NULL
1295 wxLayoutConstraints *m_constraints;
1296
1297 // constraints this window is involved in
1298 wxWindowList *m_constraintsInvolvedIn;
1299 #endif // wxUSE_CONSTRAINTS
1300
1301 // this window's sizer
1302 wxSizer *m_windowSizer;
1303
1304 // The sizer this window is a member of, if any
1305 wxSizer *m_containingSizer;
1306
1307 // Layout() window automatically when its size changes?
1308 bool m_autoLayout:1;
1309
1310 // window state
1311 bool m_isShown:1;
1312 bool m_isEnabled:1;
1313 bool m_isBeingDeleted:1;
1314
1315 // was the window colours/font explicitly changed by user?
1316 bool m_hasBgCol:1;
1317 bool m_hasFgCol:1;
1318 bool m_hasFont:1;
1319
1320 // and should it be inherited by children?
1321 bool m_inheritBgCol:1;
1322 bool m_inheritFgCol:1;
1323 bool m_inheritFont:1;
1324
1325 // window attributes
1326 long m_windowStyle,
1327 m_exStyle;
1328 wxString m_windowName;
1329 bool m_themeEnabled;
1330 wxBackgroundStyle m_backgroundStyle;
1331 #if wxUSE_PALETTE
1332 wxPalette m_palette;
1333 bool m_hasCustomPalette;
1334 #endif // wxUSE_PALETTE
1335
1336 #if wxUSE_ACCESSIBILITY
1337 wxAccessible* m_accessible;
1338 #endif
1339
1340 // Virtual size (scrolling)
1341 wxSize m_virtualSize;
1342
1343 wxScrollHelper *m_scrollHelper;
1344
1345 int m_minVirtualWidth; // VirtualSizeHints
1346 int m_minVirtualHeight;
1347 int m_maxVirtualWidth;
1348 int m_maxVirtualHeight;
1349
1350 wxWindowVariant m_windowVariant ;
1351
1352 // override this to change the default (i.e. used when no style is
1353 // specified) border for the window class
1354 virtual wxBorder GetDefaultBorder() const;
1355
1356 // Get the default size for the new window if no explicit size given. TLWs
1357 // have their own default size so this is just for non top-level windows.
1358 static int WidthDefault(int w) { return w == wxDefaultCoord ? 20 : w; }
1359 static int HeightDefault(int h) { return h == wxDefaultCoord ? 20 : h; }
1360
1361
1362 // Used to save the results of DoGetBestSize so it doesn't need to be
1363 // recalculated each time the value is needed.
1364 wxSize m_bestSizeCache;
1365
1366 wxDEPRECATED( void SetBestSize(const wxSize& size) ); // use SetInitialSize
1367 wxDEPRECATED( virtual void SetInitialBestSize(const wxSize& size) ); // use SetInitialSize
1368
1369
1370
1371 // more pure virtual functions
1372 // ---------------------------
1373
1374 // NB: we must have DoSomething() function when Something() is an overloaded
1375 // method: indeed, we can't just have "virtual Something()" in case when
1376 // the function is overloaded because then we'd have to make virtual all
1377 // the variants (otherwise only the virtual function may be called on a
1378 // pointer to derived class according to C++ rules) which is, in
1379 // general, absolutely not needed. So instead we implement all
1380 // overloaded Something()s in terms of DoSomething() which will be the
1381 // only one to be virtual.
1382
1383 // coordinates translation
1384 virtual void DoClientToScreen( int *x, int *y ) const = 0;
1385 virtual void DoScreenToClient( int *x, int *y ) const = 0;
1386
1387 virtual wxHitTest DoHitTest(wxCoord x, wxCoord y) const;
1388
1389 // capture/release the mouse, used by Capture/ReleaseMouse()
1390 virtual void DoCaptureMouse() = 0;
1391 virtual void DoReleaseMouse() = 0;
1392
1393 // retrieve the position/size of the window
1394 virtual void DoGetPosition(int *x, int *y) const = 0;
1395 virtual void DoGetScreenPosition(int *x, int *y) const;
1396 virtual void DoGetSize(int *width, int *height) const = 0;
1397 virtual void DoGetClientSize(int *width, int *height) const = 0;
1398
1399 // get the size which best suits the window: for a control, it would be
1400 // the minimal size which doesn't truncate the control, for a panel - the
1401 // same size as it would have after a call to Fit()
1402 virtual wxSize DoGetBestSize() const;
1403
1404 // called from DoGetBestSize() to convert best virtual size (returned by
1405 // the window sizer) to the best size for the window itself; this is
1406 // overridden at wxScrolledWindow level to clump down virtual size to real
1407 virtual wxSize GetWindowSizeForVirtualSize(const wxSize& size) const
1408 {
1409 return size;
1410 }
1411
1412 // this is the virtual function to be overriden in any derived class which
1413 // wants to change how SetSize() or Move() works - it is called by all
1414 // versions of these functions in the base class
1415 virtual void DoSetSize(int x, int y,
1416 int width, int height,
1417 int sizeFlags = wxSIZE_AUTO) = 0;
1418
1419 // same as DoSetSize() for the client size
1420 virtual void DoSetClientSize(int width, int height) = 0;
1421
1422 // move the window to the specified location and resize it: this is called
1423 // from both DoSetSize() and DoSetClientSize() and would usually just
1424 // reposition this window except for composite controls which will want to
1425 // arrange themselves inside the given rectangle
1426 //
1427 // Important note: the coordinates passed to this method are in parent's
1428 // *window* coordinates and not parent's client coordinates (as the values
1429 // passed to DoSetSize and returned by DoGetPosition are)!
1430 virtual void DoMoveWindow(int x, int y, int width, int height) = 0;
1431
1432 // centre the window in the specified direction on parent, note that
1433 // wxCENTRE_ON_SCREEN shouldn't be specified here, it only makes sense for
1434 // TLWs
1435 virtual void DoCentre(int dir);
1436
1437 #if wxUSE_TOOLTIPS
1438 virtual void DoSetToolTip( wxToolTip *tip );
1439 #endif // wxUSE_TOOLTIPS
1440
1441 #if wxUSE_MENUS
1442 virtual bool DoPopupMenu(wxMenu *menu, int x, int y) = 0;
1443 #endif // wxUSE_MENUS
1444
1445 // Makes an adjustment to the window position to make it relative to the
1446 // parents client area, e.g. if the parent is a frame with a toolbar, its
1447 // (0, 0) is just below the toolbar
1448 virtual void AdjustForParentClientOrigin(int& x, int& y,
1449 int sizeFlags = 0) const;
1450
1451 // implements the window variants
1452 virtual void DoSetWindowVariant( wxWindowVariant variant ) ;
1453
1454 // Must be called when mouse capture is lost to send
1455 // wxMouseCaptureLostEvent to windows on capture stack.
1456 static void NotifyCaptureLost();
1457
1458 private:
1459 // recursively call our own and our children OnEnabled() when the
1460 // enabled/disabled status changed because a parent window had been
1461 // enabled/disabled
1462 void NotifyWindowOnEnableChange(bool enabled);
1463
1464
1465 // contains the last id generated by NewControlId
1466 static int ms_lastControlId;
1467
1468 // the stack of windows which have captured the mouse
1469 static struct WXDLLEXPORT wxWindowNext *ms_winCaptureNext;
1470 // the window that currently has mouse capture
1471 static wxWindow *ms_winCaptureCurrent;
1472 // indicates if execution is inside CaptureMouse/ReleaseMouse
1473 static bool ms_winCaptureChanging;
1474
1475 DECLARE_ABSTRACT_CLASS(wxWindowBase)
1476 DECLARE_NO_COPY_CLASS(wxWindowBase)
1477 DECLARE_EVENT_TABLE()
1478 };
1479
1480
1481
1482 // Inlines for some deprecated methods
1483 inline wxSize wxWindowBase::GetBestFittingSize() const
1484 {
1485 return GetEffectiveMinSize();
1486 }
1487
1488 inline void wxWindowBase::SetBestFittingSize(const wxSize& size)
1489 {
1490 SetInitialSize(size);
1491 }
1492
1493 inline void wxWindowBase::SetBestSize(const wxSize& size)
1494 {
1495 SetInitialSize(size);
1496 }
1497
1498 inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
1499 {
1500 SetInitialSize(size);
1501 }
1502
1503
1504 // ----------------------------------------------------------------------------
1505 // now include the declaration of wxWindow class
1506 // ----------------------------------------------------------------------------
1507
1508 // include the declaration of the platform-specific class
1509 #if defined(__WXPALMOS__)
1510 #ifdef __WXUNIVERSAL__
1511 #define wxWindowNative wxWindowPalm
1512 #else // !wxUniv
1513 #define wxWindowPalm wxWindow
1514 #endif // wxUniv/!wxUniv
1515 #include "wx/palmos/window.h"
1516 #elif defined(__WXMSW__)
1517 #ifdef __WXUNIVERSAL__
1518 #define wxWindowNative wxWindowMSW
1519 #else // !wxUniv
1520 #define wxWindowMSW wxWindow
1521 #endif // wxUniv/!wxUniv
1522 #include "wx/msw/window.h"
1523 #elif defined(__WXMOTIF__)
1524 #include "wx/motif/window.h"
1525 #elif defined(__WXGTK20__)
1526 #ifdef __WXUNIVERSAL__
1527 #define wxWindowNative wxWindowGTK
1528 #else // !wxUniv
1529 #define wxWindowGTK wxWindow
1530 #endif // wxUniv
1531 #include "wx/gtk/window.h"
1532 #elif defined(__WXGTK__)
1533 #ifdef __WXUNIVERSAL__
1534 #define wxWindowNative wxWindowGTK
1535 #else // !wxUniv
1536 #define wxWindowGTK wxWindow
1537 #endif // wxUniv
1538 #include "wx/gtk1/window.h"
1539 #elif defined(__WXX11__)
1540 #ifdef __WXUNIVERSAL__
1541 #define wxWindowNative wxWindowX11
1542 #else // !wxUniv
1543 #define wxWindowX11 wxWindow
1544 #endif // wxUniv
1545 #include "wx/x11/window.h"
1546 #elif defined(__WXMGL__)
1547 #define wxWindowNative wxWindowMGL
1548 #include "wx/mgl/window.h"
1549 #elif defined(__WXDFB__)
1550 #define wxWindowNative wxWindowDFB
1551 #include "wx/dfb/window.h"
1552 #elif defined(__WXMAC__)
1553 #ifdef __WXUNIVERSAL__
1554 #define wxWindowNative wxWindowMac
1555 #else // !wxUniv
1556 #define wxWindowMac wxWindow
1557 #endif // wxUniv
1558 #include "wx/mac/window.h"
1559 #elif defined(__WXCOCOA__)
1560 #ifdef __WXUNIVERSAL__
1561 #define wxWindowNative wxWindowCocoa
1562 #else // !wxUniv
1563 #define wxWindowCocoa wxWindow
1564 #endif // wxUniv
1565 #include "wx/cocoa/window.h"
1566 #elif defined(__WXPM__)
1567 #ifdef __WXUNIVERSAL__
1568 #define wxWindowNative wxWindowOS2
1569 #else // !wxUniv
1570 #define wxWindowOS2 wxWindow
1571 #endif // wxUniv/!wxUniv
1572 #include "wx/os2/window.h"
1573 #endif
1574
1575 // for wxUniversal, we now derive the real wxWindow from wxWindow<platform>,
1576 // for the native ports we already have defined it above
1577 #if defined(__WXUNIVERSAL__)
1578 #ifndef wxWindowNative
1579 #error "wxWindowNative must be defined above!"
1580 #endif
1581
1582 #include "wx/univ/window.h"
1583 #endif // wxUniv
1584
1585 // ----------------------------------------------------------------------------
1586 // inline functions which couldn't be declared in the class body because of
1587 // forward dependencies
1588 // ----------------------------------------------------------------------------
1589
1590 inline wxWindow *wxWindowBase::GetGrandParent() const
1591 {
1592 return m_parent ? m_parent->GetParent() : (wxWindow *)NULL;
1593 }
1594
1595 // ----------------------------------------------------------------------------
1596 // global functions
1597 // ----------------------------------------------------------------------------
1598
1599 // Find the wxWindow at the current mouse position, also returning the mouse
1600 // position.
1601 extern WXDLLEXPORT wxWindow* wxFindWindowAtPointer(wxPoint& pt);
1602
1603 // Get the current mouse position.
1604 extern WXDLLEXPORT wxPoint wxGetMousePosition();
1605
1606 // get the currently active window of this application or NULL
1607 extern WXDLLEXPORT wxWindow *wxGetActiveWindow();
1608
1609 // get the (first) top level parent window
1610 WXDLLEXPORT wxWindow* wxGetTopLevelParent(wxWindow *win);
1611
1612 #if WXWIN_COMPATIBILITY_2_6
1613 // deprecated (doesn't start with 'wx' prefix), use wxWindow::NewControlId()
1614 wxDEPRECATED( int NewControlId() );
1615 inline int NewControlId() { return wxWindowBase::NewControlId(); }
1616 #endif // WXWIN_COMPATIBILITY_2_6
1617
1618 #if wxUSE_ACCESSIBILITY
1619 // ----------------------------------------------------------------------------
1620 // accessible object for windows
1621 // ----------------------------------------------------------------------------
1622
1623 class WXDLLEXPORT wxWindowAccessible: public wxAccessible
1624 {
1625 public:
1626 wxWindowAccessible(wxWindow* win): wxAccessible(win) { if (win) win->SetAccessible(this); }
1627 virtual ~wxWindowAccessible() {}
1628
1629 // Overridables
1630
1631 // Can return either a child object, or an integer
1632 // representing the child element, starting from 1.
1633 virtual wxAccStatus HitTest(const wxPoint& pt, int* childId, wxAccessible** childObject);
1634
1635 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
1636 virtual wxAccStatus GetLocation(wxRect& rect, int elementId);
1637
1638 // Navigates from fromId to toId/toObject.
1639 virtual wxAccStatus Navigate(wxNavDir navDir, int fromId,
1640 int* toId, wxAccessible** toObject);
1641
1642 // Gets the name of the specified object.
1643 virtual wxAccStatus GetName(int childId, wxString* name);
1644
1645 // Gets the number of children.
1646 virtual wxAccStatus GetChildCount(int* childCount);
1647
1648 // Gets the specified child (starting from 1).
1649 // If *child is NULL and return value is wxACC_OK,
1650 // this means that the child is a simple element and
1651 // not an accessible object.
1652 virtual wxAccStatus GetChild(int childId, wxAccessible** child);
1653
1654 // Gets the parent, or NULL.
1655 virtual wxAccStatus GetParent(wxAccessible** parent);
1656
1657 // Performs the default action. childId is 0 (the action for this object)
1658 // or > 0 (the action for a child).
1659 // Return wxACC_NOT_SUPPORTED if there is no default action for this
1660 // window (e.g. an edit control).
1661 virtual wxAccStatus DoDefaultAction(int childId);
1662
1663 // Gets the default action for this object (0) or > 0 (the action for a child).
1664 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
1665 // string if there is no action.
1666 // The retrieved string describes the action that is performed on an object,
1667 // not what the object does as a result. For example, a toolbar button that prints
1668 // a document has a default action of "Press" rather than "Prints the current document."
1669 virtual wxAccStatus GetDefaultAction(int childId, wxString* actionName);
1670
1671 // Returns the description for this object or a child.
1672 virtual wxAccStatus GetDescription(int childId, wxString* description);
1673
1674 // Returns help text for this object or a child, similar to tooltip text.
1675 virtual wxAccStatus GetHelpText(int childId, wxString* helpText);
1676
1677 // Returns the keyboard shortcut for this object or child.
1678 // Return e.g. ALT+K
1679 virtual wxAccStatus GetKeyboardShortcut(int childId, wxString* shortcut);
1680
1681 // Returns a role constant.
1682 virtual wxAccStatus GetRole(int childId, wxAccRole* role);
1683
1684 // Returns a state constant.
1685 virtual wxAccStatus GetState(int childId, long* state);
1686
1687 // Returns a localized string representing the value for the object
1688 // or child.
1689 virtual wxAccStatus GetValue(int childId, wxString* strValue);
1690
1691 // Selects the object or child.
1692 virtual wxAccStatus Select(int childId, wxAccSelectionFlags selectFlags);
1693
1694 // Gets the window with the keyboard focus.
1695 // If childId is 0 and child is NULL, no object in
1696 // this subhierarchy has the focus.
1697 // If this object has the focus, child should be 'this'.
1698 virtual wxAccStatus GetFocus(int* childId, wxAccessible** child);
1699
1700 #if wxUSE_VARIANT
1701 // Gets a variant representing the selected children
1702 // of this object.
1703 // Acceptable values:
1704 // - a null variant (IsNull() returns true)
1705 // - a list variant (GetType() == wxT("list")
1706 // - an integer representing the selected child element,
1707 // or 0 if this object is selected (GetType() == wxT("long")
1708 // - a "void*" pointer to a wxAccessible child object
1709 virtual wxAccStatus GetSelections(wxVariant* selections);
1710 #endif // wxUSE_VARIANT
1711 };
1712
1713 #endif // wxUSE_ACCESSIBILITY
1714
1715
1716 #endif // _WX_WINDOW_H_BASE_