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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/combocmn.cpp
3 // Purpose: wxComboCtrlBase
4 // Author: Jaakko Salli
5 // Modified by:
6 // Created: Apr-30-2006
7 // RCS-ID: $Id$
8 // Copyright: (c) 2005 Jaakko Salli
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #if wxUSE_COMBOCTRL
27
28 #include "wx/combobox.h"
29
30 #ifndef WX_PRECOMP
31 #include "wx/app.h"
32 #include "wx/log.h"
33 #include "wx/dcclient.h"
34 #include "wx/settings.h"
35 #include "wx/timer.h"
36 #include "wx/textctrl.h"
37 #endif
38
39 #include "wx/tooltip.h"
40
41 #include "wx/combo.h"
42
43
44
45 // constants
46 // ----------------------------------------------------------------------------
47
48 #define DEFAULT_DROPBUTTON_WIDTH 19
49
50 #define BMP_BUTTON_MARGIN 4
51
52 #define DEFAULT_POPUP_HEIGHT 400
53
54 #define DEFAULT_TEXT_INDENT 3
55
56 #define COMBO_MARGIN 2 // spacing right of wxTextCtrl
57
58
59 #if defined(__WXMSW__)
60
61 // Let's use wxFrame as a fall-back solution until wxMSW gets wxNonOwnedWindow
62 #include "wx/frame.h"
63 #define wxCC_GENERIC_TLW_IS_FRAME
64 #define wxComboCtrlGenericTLW wxFrame
65
66 #define USE_TRANSIENT_POPUP 1 // Use wxPopupWindowTransient (preferred, if it works properly on platform)
67 #define TRANSIENT_POPUPWIN_IS_PERFECT 0 // wxPopupTransientWindow works, its child can have focus, and common
68 // native controls work on it like normal.
69 #define POPUPWIN_IS_PERFECT 0 // Same, but for non-transient popup window.
70 #define TEXTCTRL_TEXT_CENTERED 0 // 1 if text in textctrl is vertically centered
71 #define FOCUS_RING 0 // No focus ring on wxMSW
72
73 //#undef wxUSE_POPUPWIN
74 //#define wxUSE_POPUPWIN 0
75
76 #elif defined(__WXGTK__)
77
78 // NB: It is not recommended to use wxDialog as popup on wxGTK, because of
79 // this bug: If wxDialog is hidden, its position becomes corrupt
80 // between hide and next show, but without internal coordinates being
81 // reflected (or something like that - atleast commenting out ->Hide()
82 // seemed to eliminate the position change).
83
84 #include "wx/dialog.h"
85 #define wxCC_GENERIC_TLW_IS_DIALOG
86 #define wxComboCtrlGenericTLW wxDialog
87
88 #if defined(__WXGTK20__)
89 # include "wx/gtk/private.h"
90 #else
91 # include "wx/gtk1/private.h"
92 #endif
93
94 // NB: Let's not be afraid to use wxGTK's wxPopupTransientWindow as a
95 // 'perfect' popup, as it can succesfully host child controls even in
96 // popups that are shown in modal dialogs.
97
98 #define USE_TRANSIENT_POPUP 1 // Use wxPopupWindowTransient (preferred, if it works properly on platform)
99 #define TRANSIENT_POPUPWIN_IS_PERFECT 1 // wxPopupTransientWindow works, its child can have focus, and common
100 // native controls work on it like normal.
101 #define POPUPWIN_IS_PERFECT 1 // Same, but for non-transient popup window.
102 #define TEXTCTRL_TEXT_CENTERED 1 // 1 if text in textctrl is vertically centered
103 #define FOCUS_RING 0 // No focus ring on wxGTK
104
105 #elif defined(__WXMAC__)
106
107 #include "wx/nonownedwnd.h"
108 #define wxCC_GENERIC_TLW_IS_NONOWNEDWINDOW
109 #define wxComboCtrlGenericTLW wxNonOwnedWindow
110
111 #define USE_TRANSIENT_POPUP 1 // Use wxPopupWindowTransient (preferred, if it works properly on platform)
112 #define TRANSIENT_POPUPWIN_IS_PERFECT 1 // wxPopupTransientWindow works, its child can have focus, and common
113 // native controls work on it like normal.
114 #define POPUPWIN_IS_PERFECT 1 // Same, but for non-transient popup window.
115 #define TEXTCTRL_TEXT_CENTERED 1 // 1 if text in textctrl is vertically centered
116 #define FOCUS_RING 3 // Reserve room for the textctrl's focus ring to display
117
118 #undef DEFAULT_DROPBUTTON_WIDTH
119 #define DEFAULT_DROPBUTTON_WIDTH 22
120 #undef COMBO_MARGIN
121 #define COMBO_MARGIN FOCUS_RING
122
123 #else
124
125 #include "wx/dialog.h"
126 #define wxCC_GENERIC_TLW_IS_DIALOG
127 #define wxComboCtrlGenericTLW wxDialog
128
129 #define USE_TRANSIENT_POPUP 0 // Use wxPopupWindowTransient (preferred, if it works properly on platform)
130 #define TRANSIENT_POPUPWIN_IS_PERFECT 0 // wxPopupTransientWindow works, its child can have focus, and common
131 // native controls work on it like normal.
132 #define POPUPWIN_IS_PERFECT 0 // Same, but for non-transient popup window.
133 #define TEXTCTRL_TEXT_CENTERED 1 // 1 if text in textctrl is vertically centered
134 #define FOCUS_RING 0
135
136 #endif
137
138
139 // Popupwin is really only supported on wxMSW (not WINCE) and wxGTK, regardless
140 // what the wxUSE_POPUPWIN says.
141 // FIXME: Why isn't wxUSE_POPUPWIN reliable any longer? (it was in wxW2.6.2)
142 #if (!defined(__WXMSW__) && !defined(__WXGTK__) && !defined(__WXMAC__)) || defined(__WXWINCE__)
143 #undef wxUSE_POPUPWIN
144 #define wxUSE_POPUPWIN 0
145 #endif
146
147
148 #if wxUSE_POPUPWIN
149 #include "wx/popupwin.h"
150 #else
151 #undef USE_TRANSIENT_POPUP
152 #define USE_TRANSIENT_POPUP 0
153 #endif
154
155
156 // Define different types of popup windows
157 enum
158 {
159 POPUPWIN_NONE = 0,
160 POPUPWIN_WXPOPUPTRANSIENTWINDOW = 1,
161 POPUPWIN_WXPOPUPWINDOW = 2,
162 POPUPWIN_GENERICTLW = 3
163 };
164
165
166 #if USE_TRANSIENT_POPUP
167 // wxPopupTransientWindow is implemented
168
169 #define wxComboPopupWindowBase wxPopupTransientWindow
170 #define PRIMARY_POPUP_TYPE POPUPWIN_WXPOPUPTRANSIENTWINDOW
171 #define USES_WXPOPUPTRANSIENTWINDOW 1
172
173 #if TRANSIENT_POPUPWIN_IS_PERFECT
174 //
175 #elif POPUPWIN_IS_PERFECT
176 #define wxComboPopupWindowBase2 wxPopupWindow
177 #define SECONDARY_POPUP_TYPE POPUPWIN_WXPOPUPWINDOW
178 #define USES_WXPOPUPWINDOW 1
179 #else
180 #define wxComboPopupWindowBase2 wxComboCtrlGenericTLW
181 #define SECONDARY_POPUP_TYPE POPUPWIN_GENERICTLW
182 #define USES_GENERICTLW 1
183 #endif
184
185 #elif wxUSE_POPUPWIN
186 // wxPopupWindow (but not wxPopupTransientWindow) is properly implemented
187
188 #define wxComboPopupWindowBase wxPopupWindow
189 #define PRIMARY_POPUP_TYPE POPUPWIN_WXPOPUPWINDOW
190 #define USES_WXPOPUPWINDOW 1
191
192 #if !POPUPWIN_IS_PERFECT
193 #define wxComboPopupWindowBase2 wxComboCtrlGenericTLW
194 #define SECONDARY_POPUP_TYPE POPUPWIN_GENERICTLW
195 #define USES_GENERICTLW 1
196 #endif
197
198 #else
199 // wxPopupWindow is not implemented
200
201 #define wxComboPopupWindowBase wxComboCtrlGenericTLW
202 #define PRIMARY_POPUP_TYPE POPUPWIN_GENERICTLW
203 #define USES_GENERICTLW 1
204
205 #endif
206
207
208 #ifndef USES_WXPOPUPTRANSIENTWINDOW
209 #define USES_WXPOPUPTRANSIENTWINDOW 0
210 #endif
211
212 #ifndef USES_WXPOPUPWINDOW
213 #define USES_WXPOPUPWINDOW 0
214 #endif
215
216 #ifndef USES_GENERICTLW
217 #define USES_GENERICTLW 0
218 #endif
219
220
221 #if USES_WXPOPUPWINDOW
222 #define INSTALL_TOPLEV_HANDLER 1
223 #else
224 #define INSTALL_TOPLEV_HANDLER 0
225 #endif
226
227
228 // Returns true if given popup window type can be classified as perfect
229 // on this platform.
230 static inline bool IsPopupWinTypePerfect( wxByte popupWinType )
231 {
232 #if POPUPWIN_IS_PERFECT && TRANSIENT_POPUPWIN_IS_PERFECT
233 wxUnusedVar(popupWinType);
234 return true;
235 #else
236 return ( popupWinType == POPUPWIN_GENERICTLW
237 #if POPUPWIN_IS_PERFECT
238 || popupWinType == POPUPWIN_WXPOPUPWINDOW
239 #endif
240 #if TRANSIENT_POPUPWIN_IS_PERFECT
241 || popupWinType == POPUPWIN_WXPOPUPTRANSIENTWINDOW
242 #endif
243 );
244 #endif
245 }
246
247
248 //
249 // ** TODO **
250 // * wxComboPopupWindow for external use (ie. replace old wxUniv wxPopupComboWindow)
251 //
252
253
254 // ----------------------------------------------------------------------------
255 // wxComboFrameEventHandler takes care of hiding the popup when events happen
256 // in its top level parent.
257 // ----------------------------------------------------------------------------
258
259 #if INSTALL_TOPLEV_HANDLER
260
261 //
262 // This will no longer be necessary after wxTransientPopupWindow
263 // works well on all platforms.
264 //
265
266 class wxComboFrameEventHandler : public wxEvtHandler
267 {
268 public:
269 wxComboFrameEventHandler( wxComboCtrlBase* pCb );
270 virtual ~wxComboFrameEventHandler();
271
272 void OnPopup();
273
274 void OnIdle( wxIdleEvent& event );
275 void OnMouseEvent( wxMouseEvent& event );
276 void OnActivate( wxActivateEvent& event );
277 void OnResize( wxSizeEvent& event );
278 void OnMove( wxMoveEvent& event );
279 void OnMenuEvent( wxMenuEvent& event );
280 void OnClose( wxCloseEvent& event );
281
282 protected:
283 wxWindow* m_focusStart;
284 wxComboCtrlBase* m_combo;
285
286 private:
287 DECLARE_EVENT_TABLE()
288 };
289
290 BEGIN_EVENT_TABLE(wxComboFrameEventHandler, wxEvtHandler)
291 EVT_IDLE(wxComboFrameEventHandler::OnIdle)
292 EVT_LEFT_DOWN(wxComboFrameEventHandler::OnMouseEvent)
293 EVT_RIGHT_DOWN(wxComboFrameEventHandler::OnMouseEvent)
294 EVT_SIZE(wxComboFrameEventHandler::OnResize)
295 EVT_MOVE(wxComboFrameEventHandler::OnMove)
296 EVT_MENU_HIGHLIGHT(wxID_ANY,wxComboFrameEventHandler::OnMenuEvent)
297 EVT_MENU_OPEN(wxComboFrameEventHandler::OnMenuEvent)
298 EVT_ACTIVATE(wxComboFrameEventHandler::OnActivate)
299 EVT_CLOSE(wxComboFrameEventHandler::OnClose)
300 END_EVENT_TABLE()
301
302 wxComboFrameEventHandler::wxComboFrameEventHandler( wxComboCtrlBase* combo )
303 : wxEvtHandler()
304 {
305 m_combo = combo;
306 }
307
308 wxComboFrameEventHandler::~wxComboFrameEventHandler()
309 {
310 }
311
312 void wxComboFrameEventHandler::OnPopup()
313 {
314 m_focusStart = ::wxWindow::FindFocus();
315 }
316
317 void wxComboFrameEventHandler::OnIdle( wxIdleEvent& event )
318 {
319 wxWindow* winFocused = ::wxWindow::FindFocus();
320
321 wxWindow* popup = m_combo->GetPopupControl()->GetControl();
322 wxWindow* winpopup = m_combo->GetPopupWindow();
323
324 if (
325 winFocused != m_focusStart &&
326 winFocused != popup &&
327 winFocused->GetParent() != popup &&
328 winFocused != winpopup &&
329 winFocused->GetParent() != winpopup &&
330 winFocused != m_combo &&
331 winFocused != m_combo->GetButton() // GTK (atleast) requires this
332 )
333 {
334 m_combo->HidePopup(true);
335 }
336
337 event.Skip();
338 }
339
340 void wxComboFrameEventHandler::OnMenuEvent( wxMenuEvent& event )
341 {
342 m_combo->HidePopup(true);
343 event.Skip();
344 }
345
346 void wxComboFrameEventHandler::OnMouseEvent( wxMouseEvent& event )
347 {
348 m_combo->HidePopup(true);
349 event.Skip();
350 }
351
352 void wxComboFrameEventHandler::OnClose( wxCloseEvent& event )
353 {
354 m_combo->HidePopup(true);
355 event.Skip();
356 }
357
358 void wxComboFrameEventHandler::OnActivate( wxActivateEvent& event )
359 {
360 m_combo->HidePopup(true);
361 event.Skip();
362 }
363
364 void wxComboFrameEventHandler::OnResize( wxSizeEvent& event )
365 {
366 m_combo->HidePopup(true);
367 event.Skip();
368 }
369
370 void wxComboFrameEventHandler::OnMove( wxMoveEvent& event )
371 {
372 m_combo->HidePopup(true);
373 event.Skip();
374 }
375
376 #endif // INSTALL_TOPLEV_HANDLER
377
378 // ----------------------------------------------------------------------------
379 // wxComboPopupWindow is, in essence, wxPopupWindow customized for
380 // wxComboCtrl.
381 // ----------------------------------------------------------------------------
382
383 class wxComboPopupWindow : public wxComboPopupWindowBase
384 {
385 public:
386
387 wxComboPopupWindow( wxComboCtrlBase *parent,
388 int style )
389 #if USES_WXPOPUPWINDOW || USES_WXPOPUPTRANSIENTWINDOW
390 : wxComboPopupWindowBase(parent,style)
391 #else
392 : wxComboPopupWindowBase(parent,
393 wxID_ANY,
394 wxEmptyString,
395 wxPoint(-21,-21),
396 wxSize(20,20),
397 style)
398 #endif
399 {
400 m_inShow = 0;
401 }
402
403 #if USES_WXPOPUPTRANSIENTWINDOW
404 virtual bool Show( bool show );
405 virtual bool ProcessLeftDown(wxMouseEvent& event);
406 protected:
407 virtual void OnDismiss();
408 #endif
409
410 private:
411 wxByte m_inShow;
412 };
413
414
415 #if USES_WXPOPUPTRANSIENTWINDOW
416 bool wxComboPopupWindow::Show( bool show )
417 {
418 // Guard against recursion
419 if ( m_inShow )
420 return wxComboPopupWindowBase::Show(show);
421
422 m_inShow++;
423
424 wxASSERT( IsKindOf(CLASSINFO(wxPopupTransientWindow)) );
425
426 wxPopupTransientWindow* ptw = (wxPopupTransientWindow*) this;
427
428 if ( show != ptw->IsShown() )
429 {
430 if ( show )
431 // We used to do wxPopupTransientWindow::Popup here,
432 // but this would hide normal Show, which we are
433 // also going to need.
434 ptw->Show();
435 else
436 ptw->Dismiss();
437 }
438
439 m_inShow--;
440
441 return true;
442 }
443
444 bool wxComboPopupWindow::ProcessLeftDown(wxMouseEvent& event)
445 {
446 return wxPopupTransientWindow::ProcessLeftDown(event);
447 }
448
449 // First thing that happens when a transient popup closes is that this method gets called.
450 void wxComboPopupWindow::OnDismiss()
451 {
452 wxComboCtrlBase* combo = (wxComboCtrlBase*) GetParent();
453 wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxComboCtrlBase)),
454 wxT("parent might not be wxComboCtrl, but check IMPLEMENT_DYNAMIC_CLASS(2) macro for correctness") );
455
456 combo->OnPopupDismiss(true);
457 }
458 #endif // USES_WXPOPUPTRANSIENTWINDOW
459
460
461 // ----------------------------------------------------------------------------
462 // wxComboPopupWindowEvtHandler does bulk of the custom event handling
463 // of a popup window. It is separate so we can have different types
464 // of popup windows.
465 // ----------------------------------------------------------------------------
466
467 class wxComboPopupWindowEvtHandler : public wxEvtHandler
468 {
469 public:
470
471 wxComboPopupWindowEvtHandler( wxComboCtrlBase *parent )
472 {
473 m_combo = parent;
474 }
475
476 void OnSizeEvent( wxSizeEvent& event );
477 void OnKeyEvent(wxKeyEvent& event);
478 #if USES_GENERICTLW
479 void OnActivate( wxActivateEvent& event );
480 #endif
481
482 private:
483 wxComboCtrlBase* m_combo;
484
485 DECLARE_EVENT_TABLE()
486 };
487
488
489 BEGIN_EVENT_TABLE(wxComboPopupWindowEvtHandler, wxEvtHandler)
490 EVT_KEY_DOWN(wxComboPopupWindowEvtHandler::OnKeyEvent)
491 EVT_KEY_UP(wxComboPopupWindowEvtHandler::OnKeyEvent)
492 EVT_CHAR(wxComboPopupWindowEvtHandler::OnKeyEvent)
493 #if USES_GENERICTLW
494 EVT_ACTIVATE(wxComboPopupWindowEvtHandler::OnActivate)
495 #endif
496 EVT_SIZE(wxComboPopupWindowEvtHandler::OnSizeEvent)
497 END_EVENT_TABLE()
498
499
500 void wxComboPopupWindowEvtHandler::OnSizeEvent( wxSizeEvent& WXUNUSED(event) )
501 {
502 // Block the event so that the popup control does not get auto-resized.
503 }
504
505 void wxComboPopupWindowEvtHandler::OnKeyEvent( wxKeyEvent& event )
506 {
507 // Relay keyboard event to the main child controls
508 wxWindowList children = m_combo->GetPopupWindow()->GetChildren();
509 wxWindowList::iterator node = children.begin();
510 wxWindow* child = (wxWindow*)*node;
511 child->GetEventHandler()->ProcessEvent(event);
512 }
513
514 #if USES_GENERICTLW
515 void wxComboPopupWindowEvtHandler::OnActivate( wxActivateEvent& event )
516 {
517 if ( !event.GetActive() )
518 {
519 // Tell combo control that we are dismissed.
520 m_combo->HidePopup(true);
521
522 event.Skip();
523 }
524 }
525 #endif
526
527
528 // ----------------------------------------------------------------------------
529 // wxComboPopup
530 //
531 // ----------------------------------------------------------------------------
532
533 wxComboPopup::~wxComboPopup()
534 {
535 }
536
537 void wxComboPopup::OnPopup()
538 {
539 }
540
541 void wxComboPopup::OnDismiss()
542 {
543 }
544
545 wxComboCtrl* wxComboPopup::GetComboCtrl() const
546 {
547 return wxStaticCast(m_combo, wxComboCtrl);
548 }
549
550 wxSize wxComboPopup::GetAdjustedSize( int minWidth,
551 int prefHeight,
552 int WXUNUSED(maxHeight) )
553 {
554 return wxSize(minWidth,prefHeight);
555 }
556
557 void wxComboPopup::DefaultPaintComboControl( wxComboCtrlBase* combo,
558 wxDC& dc, const wxRect& rect )
559 {
560 if ( combo->GetWindowStyle() & wxCB_READONLY ) // ie. no textctrl
561 {
562 combo->PrepareBackground(dc,rect,0);
563
564 dc.DrawText( combo->GetValue(),
565 rect.x + combo->m_marginLeft,
566 (rect.height-dc.GetCharHeight())/2 + rect.y );
567 }
568 }
569
570 void wxComboPopup::PaintComboControl( wxDC& dc, const wxRect& rect )
571 {
572 DefaultPaintComboControl(m_combo,dc,rect);
573 }
574
575 void wxComboPopup::OnComboKeyEvent( wxKeyEvent& event )
576 {
577 event.Skip();
578 }
579
580 void wxComboPopup::OnComboCharEvent( wxKeyEvent& event )
581 {
582 event.Skip();
583 }
584
585 void wxComboPopup::OnComboDoubleClick()
586 {
587 }
588
589 void wxComboPopup::SetStringValue( const wxString& WXUNUSED(value) )
590 {
591 }
592
593 bool wxComboPopup::LazyCreate()
594 {
595 return false;
596 }
597
598 void wxComboPopup::Dismiss()
599 {
600 m_combo->HidePopup(true);
601 }
602
603 // ----------------------------------------------------------------------------
604 // input handling
605 // ----------------------------------------------------------------------------
606
607 //
608 // This is pushed to the event handler queue of the child textctrl.
609 //
610 class wxComboBoxExtraInputHandler : public wxEvtHandler
611 {
612 public:
613
614 wxComboBoxExtraInputHandler( wxComboCtrlBase* combo )
615 : wxEvtHandler()
616 {
617 m_combo = combo;
618 }
619 virtual ~wxComboBoxExtraInputHandler() { }
620 void OnKey(wxKeyEvent& event);
621 void OnFocus(wxFocusEvent& event);
622
623 protected:
624 wxComboCtrlBase* m_combo;
625
626 private:
627 DECLARE_EVENT_TABLE()
628 };
629
630
631 BEGIN_EVENT_TABLE(wxComboBoxExtraInputHandler, wxEvtHandler)
632 EVT_KEY_DOWN(wxComboBoxExtraInputHandler::OnKey)
633 EVT_KEY_UP(wxComboBoxExtraInputHandler::OnKey)
634 EVT_CHAR(wxComboBoxExtraInputHandler::OnKey)
635 EVT_SET_FOCUS(wxComboBoxExtraInputHandler::OnFocus)
636 EVT_KILL_FOCUS(wxComboBoxExtraInputHandler::OnFocus)
637 END_EVENT_TABLE()
638
639
640 void wxComboBoxExtraInputHandler::OnKey(wxKeyEvent& event)
641 {
642 // Let the wxComboCtrl event handler have a go first.
643 wxComboCtrlBase* combo = m_combo;
644
645 wxKeyEvent redirectedEvent(event);
646 redirectedEvent.SetId(combo->GetId());
647 redirectedEvent.SetEventObject(combo);
648
649 if ( !combo->GetEventHandler()->ProcessEvent(redirectedEvent) )
650 {
651 // Don't let TAB through to the text ctrl - looks ugly
652 if ( event.GetKeyCode() != WXK_TAB )
653 event.Skip();
654 }
655 }
656
657 void wxComboBoxExtraInputHandler::OnFocus(wxFocusEvent& event)
658 {
659 // FIXME: This code does run when control is clicked,
660 // yet on Windows it doesn't select all the text.
661 if ( event.GetEventType() == wxEVT_SET_FOCUS &&
662 !(m_combo->GetInternalFlags() & wxCC_NO_TEXT_AUTO_SELECT) )
663 {
664 if ( m_combo->GetTextCtrl() )
665 m_combo->GetTextCtrl()->SelectAll();
666 else
667 m_combo->SetSelection(-1,-1);
668 }
669
670 // Send focus indication to parent.
671 // NB: This is needed for cases where the textctrl gets focus
672 // instead of its parent. While this may trigger multiple
673 // wxEVT_SET_FOCUSes (since m_text->SetFocus is called
674 // from combo's focus event handler), they should be quite
675 // harmless.
676 wxFocusEvent evt2(event.GetEventType(),m_combo->GetId());
677 evt2.SetEventObject(m_combo);
678 m_combo->GetEventHandler()->ProcessEvent(evt2);
679
680 event.Skip();
681 }
682
683
684 //
685 // This is pushed to the event handler queue of the control in popup.
686 //
687
688 class wxComboPopupEvtHandler : public wxEvtHandler
689 {
690 public:
691
692 wxComboPopupEvtHandler( wxComboCtrlBase* combo )
693 : wxEvtHandler()
694 {
695 m_combo = combo;
696 m_beenInside = false;
697
698 // Let's make it so that the popup control will not receive mouse
699 // events until mouse left button has been up.
700 m_blockEventsToPopup = true;
701 }
702 virtual ~wxComboPopupEvtHandler() { }
703
704 void OnMouseEvent( wxMouseEvent& event );
705
706 // Called from wxComboCtrlBase::OnPopupDismiss
707 void OnPopupDismiss()
708 {
709 m_beenInside = false;
710 m_blockEventsToPopup = true;
711 }
712
713 protected:
714 wxComboCtrlBase* m_combo;
715
716 bool m_beenInside;
717 bool m_blockEventsToPopup;
718
719 private:
720 DECLARE_EVENT_TABLE()
721 };
722
723
724 BEGIN_EVENT_TABLE(wxComboPopupEvtHandler, wxEvtHandler)
725 EVT_MOUSE_EVENTS(wxComboPopupEvtHandler::OnMouseEvent)
726 END_EVENT_TABLE()
727
728
729 void wxComboPopupEvtHandler::OnMouseEvent( wxMouseEvent& event )
730 {
731 wxPoint pt = event.GetPosition();
732 wxSize sz = m_combo->GetPopupControl()->GetControl()->GetClientSize();
733 int evtType = event.GetEventType();
734 bool isInside = pt.x >= 0 && pt.y >= 0 && pt.x < sz.x && pt.y < sz.y;
735 bool relayToButton = false;
736
737 event.Skip();
738
739 if ( !isInside || !m_combo->IsPopupShown() )
740 {
741 // Mouse is outside the popup or popup is not actually shown (yet)
742
743 if ( evtType == wxEVT_MOTION ||
744 evtType == wxEVT_LEFT_DOWN ||
745 evtType == wxEVT_LEFT_UP ||
746 evtType == wxEVT_RIGHT_DOWN )
747 {
748 // Block motion and click events outside the popup
749 event.Skip(false);
750 }
751 }
752 else
753 {
754 // Mouse is inside the popup, which is fully shown
755
756 m_beenInside = true;
757
758 // Do not let the popup control respond to mouse events until
759 // mouse press used to display the popup has been lifted. This
760 // is important for users with slower mouse fingers or mouse
761 // drivers. Note that we have some redundancy here, just in
762 // case the popup is some native control that does not emit all
763 // mouse event types.
764 if ( evtType == wxEVT_MOTION )
765 {
766 if ( m_blockEventsToPopup )
767 {
768 if ( event.LeftIsDown() )
769 event.Skip(false);
770 else
771 m_blockEventsToPopup = false;
772 }
773 }
774 else if ( evtType == wxEVT_LEFT_DOWN )
775 {
776 if ( m_blockEventsToPopup )
777 m_blockEventsToPopup = false;
778 }
779 else if ( evtType == wxEVT_LEFT_UP )
780 {
781 if ( m_blockEventsToPopup )
782 {
783 // On first left up, stop blocking mouse events (but still
784 // block this one)
785 m_blockEventsToPopup = false;
786 event.Skip(false);
787
788 // Also, this button press was (probably) used to display
789 // the popup, so relay it back to the drop-down button
790 // (which supposedly originated it). This is necessary to
791 // refresh it properly.
792 relayToButton = true;
793 }
794 }
795 else if ( m_blockEventsToPopup )
796 {
797 event.Skip(false);
798 }
799 }
800
801 //
802 // Some mouse events to popup that happen outside it, before cursor
803 // has been inside the popup, need to be ignored by it but relayed to
804 // the dropbutton.
805 //
806 if ( evtType == wxEVT_LEFT_UP )
807 {
808 if ( !m_combo->IsPopupShown() )
809 {
810 event.Skip(false);
811 relayToButton = true;
812 }
813 else if ( !isInside && !m_beenInside )
814 {
815 // Popup is shown but the cursor is not inside, nor it has been
816 relayToButton = true;
817 }
818 }
819
820 if ( relayToButton )
821 {
822 wxWindow* btn = m_combo->GetButton();
823 if ( btn )
824 btn->GetEventHandler()->ProcessEvent(event);
825 else
826 // Bypass the event handling mechanism. Using it would be
827 // confusing for the platform-specific wxComboCtrl
828 // implementations.
829 m_combo->HandleButtonMouseEvent(event, 0);
830 }
831 }
832
833 // ----------------------------------------------------------------------------
834 // wxComboCtrlTextCtrl
835 // ----------------------------------------------------------------------------
836
837 class wxComboCtrlTextCtrl : public wxTextCtrl
838 {
839 public:
840 wxComboCtrlTextCtrl() : wxTextCtrl() { }
841 virtual ~wxComboCtrlTextCtrl() { }
842
843 virtual wxWindow *GetMainWindowOfCompositeControl()
844 {
845 wxComboCtrl* combo = (wxComboCtrl*) GetParent();
846
847 // Returning this instead of just 'parent' lets FindFocus work
848 // correctly even when parent control is a child of a composite
849 // generic control (as is case with wxGenericDatePickerCtrl).
850 return combo->GetMainWindowOfCompositeControl();
851 }
852 };
853
854 // ----------------------------------------------------------------------------
855 // wxComboCtrlBase
856 // ----------------------------------------------------------------------------
857
858
859 BEGIN_EVENT_TABLE(wxComboCtrlBase, wxControl)
860 EVT_TEXT(wxID_ANY,wxComboCtrlBase::OnTextCtrlEvent)
861 EVT_SIZE(wxComboCtrlBase::OnSizeEvent)
862 EVT_SET_FOCUS(wxComboCtrlBase::OnFocusEvent)
863 EVT_KILL_FOCUS(wxComboCtrlBase::OnFocusEvent)
864 EVT_IDLE(wxComboCtrlBase::OnIdleEvent)
865 //EVT_BUTTON(wxID_ANY,wxComboCtrlBase::OnButtonClickEvent)
866 EVT_KEY_DOWN(wxComboCtrlBase::OnKeyEvent)
867 EVT_CHAR(wxComboCtrlBase::OnCharEvent)
868 EVT_TEXT_ENTER(wxID_ANY,wxComboCtrlBase::OnTextCtrlEvent)
869 EVT_SYS_COLOUR_CHANGED(wxComboCtrlBase::OnSysColourChanged)
870 END_EVENT_TABLE()
871
872
873 IMPLEMENT_ABSTRACT_CLASS(wxComboCtrlBase, wxControl)
874
875 void wxComboCtrlBase::Init()
876 {
877 m_winPopup = NULL;
878 m_popup = NULL;
879 m_popupWinState = Hidden;
880 m_btn = NULL;
881 m_text = NULL;
882 m_popupInterface = NULL;
883
884 m_popupEvtHandler = NULL;
885 m_textEvtHandler = NULL;
886
887 #if INSTALL_TOPLEV_HANDLER
888 m_toplevEvtHandler = NULL;
889 #endif
890
891 m_mainCtrlWnd = this;
892
893 m_heightPopup = -1;
894 m_widthMinPopup = -1;
895 m_anchorSide = 0;
896 m_widthCustomPaint = 0;
897 m_widthCustomBorder = 0;
898
899 m_btnState = 0;
900 m_btnWidDefault = 0;
901 m_blankButtonBg = false;
902 m_ignoreEvtText = 0;
903 m_popupWinType = POPUPWIN_NONE;
904 m_btnWid = m_btnHei = -1;
905 m_btnSide = wxRIGHT;
906 m_btnSpacingX = 0;
907
908 m_extLeft = 0;
909 m_extRight = 0;
910 m_marginLeft = -1;
911 m_iFlags = 0;
912 m_textCtrlStyle = 0;
913 m_timeCanAcceptClick = 0;
914
915 m_resetFocus = false;
916 }
917
918 bool wxComboCtrlBase::Create(wxWindow *parent,
919 wxWindowID id,
920 const wxString& value,
921 const wxPoint& pos,
922 const wxSize& size,
923 long style,
924 const wxValidator& validator,
925 const wxString& name)
926 {
927 if ( !wxControl::Create(parent,
928 id,
929 pos,
930 size,
931 style | wxWANTS_CHARS,
932 validator,
933 name) )
934 return false;
935
936 m_valueString = value;
937
938 // Get colours
939 OnThemeChange();
940 m_marginLeft = GetNativeTextIndent();
941
942 m_iFlags |= wxCC_IFLAG_CREATED;
943
944 // If x and y indicate valid size, wxSizeEvent won't be
945 // emitted automatically, so we need to add artifical one.
946 if ( size.x > 0 && size.y > 0 )
947 {
948 wxSizeEvent evt(size,GetId());
949 GetEventHandler()->AddPendingEvent(evt);
950 }
951
952 return true;
953 }
954
955 void wxComboCtrlBase::InstallInputHandlers()
956 {
957 if ( m_text )
958 {
959 m_textEvtHandler = new wxComboBoxExtraInputHandler(this);
960 m_text->PushEventHandler(m_textEvtHandler);
961 }
962 }
963
964 void
965 wxComboCtrlBase::CreateTextCtrl(int style, const wxValidator& validator)
966 {
967 if ( !(m_windowStyle & wxCB_READONLY) )
968 {
969 if ( m_text )
970 m_text->Destroy();
971
972 // wxTE_PROCESS_TAB is needed because on Windows, wxTAB_TRAVERSAL is
973 // not used by the wxPropertyGrid and therefore the tab is processed by
974 // looking at ancestors to see if they have wxTAB_TRAVERSAL. The
975 // navigation event is then sent to the wrong window.
976 style |= wxTE_PROCESS_TAB | m_textCtrlStyle;
977
978 if ( HasFlag(wxTE_PROCESS_ENTER) )
979 style |= wxTE_PROCESS_ENTER;
980
981 // Ignore EVT_TEXT generated by the constructor (but only
982 // if the event redirector already exists)
983 // NB: This must be " = 1" instead of "++";
984 if ( m_textEvtHandler )
985 m_ignoreEvtText = 1;
986 else
987 m_ignoreEvtText = 0;
988
989 m_text = new wxComboCtrlTextCtrl();
990 m_text->Create(this, wxID_ANY, m_valueString,
991 wxDefaultPosition, wxSize(10,-1),
992 style, validator);
993 m_text->SetHint(m_hintText);
994 }
995 }
996
997 void wxComboCtrlBase::OnThemeChange()
998 {
999 // Leave the default bg on the Mac so the area used by the focus ring will
1000 // be the correct colour and themed brush. Instead we'll use
1001 // wxSYS_COLOUR_WINDOW in the EVT_PAINT handler as needed.
1002 #ifndef __WXMAC__
1003 #if defined(__WXMSW__) || defined(__WXGTK__)
1004 wxVisualAttributes vattrs = wxComboBox::GetClassDefaultAttributes();
1005 #else
1006 wxVisualAttributes vattrs;
1007 vattrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1008 vattrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1009 #endif
1010
1011 // Only change the colours if application has not specified
1012 // custom ones.
1013 if ( !m_hasFgCol )
1014 {
1015 SetOwnForegroundColour(vattrs.colFg);
1016 m_hasFgCol = false;
1017 }
1018 if ( !m_hasBgCol )
1019 {
1020 SetOwnBackgroundColour(vattrs.colBg);
1021 m_hasBgCol = false;
1022 }
1023 #endif // !__WXMAC__
1024 }
1025
1026 wxComboCtrlBase::~wxComboCtrlBase()
1027 {
1028 if ( HasCapture() )
1029 ReleaseMouse();
1030
1031 #if INSTALL_TOPLEV_HANDLER
1032 delete ((wxComboFrameEventHandler*)m_toplevEvtHandler);
1033 m_toplevEvtHandler = NULL;
1034 #endif
1035
1036 DestroyPopup();
1037
1038 if ( m_text )
1039 m_text->RemoveEventHandler(m_textEvtHandler);
1040
1041 delete m_textEvtHandler;
1042 }
1043
1044
1045 // ----------------------------------------------------------------------------
1046 // geometry stuff
1047 // ----------------------------------------------------------------------------
1048
1049 // Recalculates button and textctrl areas
1050 void wxComboCtrlBase::CalculateAreas( int btnWidth )
1051 {
1052 wxSize sz = GetClientSize();
1053 int customBorder = m_widthCustomBorder;
1054 int btnBorder; // border for button only
1055
1056 // check if button should really be outside the border: we'll do it it if
1057 // its platform default or bitmap+pushbutton background is used, but not if
1058 // there is vertical size adjustment or horizontal spacing.
1059 if ( ( (m_iFlags & wxCC_BUTTON_OUTSIDE_BORDER) ||
1060 (m_bmpNormal.Ok() && m_blankButtonBg) ) &&
1061 m_btnSpacingX == 0 &&
1062 m_btnHei <= 0 )
1063 {
1064 m_iFlags |= wxCC_IFLAG_BUTTON_OUTSIDE;
1065 btnBorder = 0;
1066 }
1067 else if ( (m_iFlags & wxCC_BUTTON_COVERS_BORDER) &&
1068 m_btnSpacingX == 0 && !m_bmpNormal.Ok() )
1069 {
1070 m_iFlags &= ~(wxCC_IFLAG_BUTTON_OUTSIDE);
1071 btnBorder = 0;
1072 }
1073 else
1074 {
1075 m_iFlags &= ~(wxCC_IFLAG_BUTTON_OUTSIDE);
1076 btnBorder = customBorder;
1077 }
1078
1079 // Defaul indentation
1080 if ( m_marginLeft < 0 )
1081 m_marginLeft = GetNativeTextIndent();
1082
1083 int butWidth = btnWidth;
1084
1085 if ( butWidth <= 0 )
1086 butWidth = m_btnWidDefault;
1087 else
1088 m_btnWidDefault = butWidth;
1089
1090 if ( butWidth <= 0 )
1091 return;
1092
1093 int butHeight = sz.y - btnBorder*2;
1094
1095 // Adjust button width
1096 if ( m_btnWid > 0 )
1097 butWidth = m_btnWid;
1098 else
1099 {
1100 // Adjust button width to match aspect ratio
1101 // (but only if control is smaller than best size).
1102 int bestHeight = GetBestSize().y;
1103 int height = GetSize().y;
1104
1105 if ( height < bestHeight )
1106 {
1107 // Make very small buttons square, as it makes
1108 // them accommodate arrow image better and still
1109 // looks decent.
1110 if ( height > 18 )
1111 butWidth = (height*butWidth)/bestHeight;
1112 else
1113 butWidth = butHeight;
1114 }
1115 }
1116
1117 // Adjust button height
1118 if ( m_btnHei > 0 )
1119 butHeight = m_btnHei;
1120
1121 // Use size of normal bitmap if...
1122 // It is larger
1123 // OR
1124 // button width is set to default and blank button bg is not drawn
1125 if ( m_bmpNormal.Ok() )
1126 {
1127 int bmpReqWidth = m_bmpNormal.GetWidth();
1128 int bmpReqHeight = m_bmpNormal.GetHeight();
1129
1130 // If drawing blank button background, we need to add some margin.
1131 if ( m_blankButtonBg )
1132 {
1133 bmpReqWidth += BMP_BUTTON_MARGIN*2;
1134 bmpReqHeight += BMP_BUTTON_MARGIN*2;
1135 }
1136
1137 if ( butWidth < bmpReqWidth || ( m_btnWid == 0 && !m_blankButtonBg ) )
1138 butWidth = bmpReqWidth;
1139 if ( butHeight < bmpReqHeight || ( m_btnHei == 0 && !m_blankButtonBg ) )
1140 butHeight = bmpReqHeight;
1141
1142 // Need to fix height?
1143 if ( (sz.y-(customBorder*2)) < butHeight && btnWidth == 0 )
1144 {
1145 int newY = butHeight+(customBorder*2);
1146 SetClientSize(wxDefaultCoord,newY);
1147 if ( m_bmpNormal.Ok() || m_btnArea.width != butWidth || m_btnArea.height != butHeight )
1148 m_iFlags |= wxCC_IFLAG_HAS_NONSTANDARD_BUTTON;
1149 else
1150 m_iFlags &= ~wxCC_IFLAG_HAS_NONSTANDARD_BUTTON;
1151
1152 sz.y = newY;
1153 }
1154 }
1155
1156 int butAreaWid = butWidth + (m_btnSpacingX*2);
1157
1158 m_btnSize.x = butWidth;
1159 m_btnSize.y = butHeight;
1160
1161 m_btnArea.x = ( m_btnSide==wxRIGHT ? sz.x - butAreaWid - btnBorder : btnBorder );
1162 m_btnArea.y = btnBorder + FOCUS_RING;
1163 m_btnArea.width = butAreaWid;
1164 m_btnArea.height = sz.y - ((btnBorder+FOCUS_RING)*2);
1165
1166 m_tcArea.x = ( m_btnSide==wxRIGHT ? 0 : butAreaWid ) + customBorder + FOCUS_RING;
1167 m_tcArea.y = customBorder + FOCUS_RING;
1168 m_tcArea.width = sz.x - butAreaWid - (customBorder*2) - (FOCUS_RING*2);
1169 m_tcArea.height = sz.y - ((customBorder+FOCUS_RING)*2);
1170
1171 /*
1172 if ( m_text )
1173 {
1174 ::wxMessageBox(wxString::Format(wxT("ButtonArea (%i,%i,%i,%i)\n"),m_btnArea.x,m_btnArea.y,m_btnArea.width,m_btnArea.height) +
1175 wxString::Format(wxT("TextCtrlArea (%i,%i,%i,%i)"),m_tcArea.x,m_tcArea.y,m_tcArea.width,m_tcArea.height));
1176 }
1177 */
1178 }
1179
1180 void wxComboCtrlBase::PositionTextCtrl( int textCtrlXAdjust, int textCtrlYAdjust )
1181 {
1182 if ( !m_text )
1183 return;
1184
1185 wxSize sz = GetClientSize();
1186
1187 int customBorder = m_widthCustomBorder;
1188 if ( (m_text->GetWindowStyleFlag() & wxBORDER_MASK) == wxNO_BORDER )
1189 {
1190 int x;
1191
1192 if ( !m_widthCustomPaint )
1193 {
1194 // No special custom paint area - we can use 0 left margin
1195 // with wxTextCtrl.
1196 if ( m_text->SetMargins(0) )
1197 textCtrlXAdjust = 0;
1198 x = m_tcArea.x + m_marginLeft + textCtrlXAdjust;
1199 }
1200 else
1201 {
1202 // There is special custom paint area - it is better to
1203 // use some margin with the wxTextCtrl.
1204 m_text->SetMargins(m_marginLeft);
1205 x = m_tcArea.x + m_widthCustomPaint +
1206 m_marginLeft + textCtrlXAdjust;
1207 }
1208
1209 // Centre textctrl vertically, if needed
1210 #if !TEXTCTRL_TEXT_CENTERED
1211 int tcSizeY = m_text->GetBestSize().y;
1212 int diff0 = sz.y - tcSizeY;
1213 int y = textCtrlYAdjust + (diff0/2);
1214 #else
1215 wxUnusedVar(textCtrlYAdjust);
1216 int y = 0;
1217 #endif
1218
1219 if ( y < customBorder )
1220 y = customBorder;
1221
1222 m_text->SetSize(x,
1223 y,
1224 m_tcArea.width - m_tcArea.x - x,
1225 -1 );
1226
1227 // Make sure textctrl doesn't exceed the bottom custom border
1228 wxSize tsz = m_text->GetSize();
1229 int diff1 = (y + tsz.y) - (sz.y - customBorder);
1230 if ( diff1 >= 0 )
1231 {
1232 tsz.y = tsz.y - diff1 - 1;
1233 m_text->SetSize(tsz);
1234 }
1235 }
1236 else
1237 {
1238 // If it has border, have textctrl fill the entire text field.
1239 m_text->SetSize( m_tcArea.x + m_widthCustomPaint,
1240 m_tcArea.y,
1241 m_tcArea.width - m_widthCustomPaint,
1242 m_tcArea.height );
1243 }
1244 }
1245
1246 wxSize wxComboCtrlBase::DoGetBestSize() const
1247 {
1248 wxSize sizeText(150,0);
1249
1250 if ( m_text )
1251 sizeText = m_text->GetBestSize();
1252
1253 // TODO: Better method to calculate close-to-native control height.
1254
1255 int fhei;
1256 if ( m_font.Ok() )
1257 fhei = (m_font.GetPointSize()*2) + 5;
1258 else if ( wxNORMAL_FONT->Ok() )
1259 fhei = (wxNORMAL_FONT->GetPointSize()*2) + 5;
1260 else
1261 fhei = sizeText.y + 4;
1262
1263 // Need to force height to accomodate bitmap?
1264 int btnSizeY = m_btnSize.y;
1265 if ( m_bmpNormal.Ok() && fhei < btnSizeY )
1266 fhei = btnSizeY;
1267
1268 // Control height doesn't depend on border
1269 /*
1270 // Add border
1271 int border = m_windowStyle & wxBORDER_MASK;
1272 if ( border == wxSIMPLE_BORDER )
1273 fhei += 2;
1274 else if ( border == wxNO_BORDER )
1275 fhei += (m_widthCustomBorder*2);
1276 else
1277 // Sunken etc.
1278 fhei += 4;
1279 */
1280
1281 // Final adjustments
1282 #ifdef __WXGTK__
1283 fhei += 1;
1284 #endif
1285
1286 #ifdef __WXMAC__
1287 // these are the numbers from the HIG:
1288 switch ( m_windowVariant )
1289 {
1290 case wxWINDOW_VARIANT_NORMAL:
1291 default :
1292 fhei = 22;
1293 break;
1294 case wxWINDOW_VARIANT_SMALL:
1295 fhei = 19;
1296 break;
1297 case wxWINDOW_VARIANT_MINI:
1298 fhei = 15;
1299 break;
1300 }
1301 #endif
1302
1303 fhei += 2 * FOCUS_RING;
1304 int width = sizeText.x + FOCUS_RING + COMBO_MARGIN + DEFAULT_DROPBUTTON_WIDTH;
1305
1306 wxSize ret(width, fhei);
1307 CacheBestSize(ret);
1308 return ret;
1309 }
1310
1311 void wxComboCtrlBase::OnSizeEvent( wxSizeEvent& event )
1312 {
1313 if ( !IsCreated() )
1314 return;
1315
1316 // defined by actual wxComboCtrls
1317 OnResize();
1318
1319 event.Skip();
1320 }
1321
1322 // ----------------------------------------------------------------------------
1323 // standard operations
1324 // ----------------------------------------------------------------------------
1325
1326 bool wxComboCtrlBase::Enable(bool enable)
1327 {
1328 if ( !wxControl::Enable(enable) )
1329 return false;
1330
1331 if ( m_btn )
1332 m_btn->Enable(enable);
1333 if ( m_text )
1334 m_text->Enable(enable);
1335
1336 Refresh();
1337
1338 return true;
1339 }
1340
1341 bool wxComboCtrlBase::Show(bool show)
1342 {
1343 if ( !wxControl::Show(show) )
1344 return false;
1345
1346 if (m_btn)
1347 m_btn->Show(show);
1348
1349 if (m_text)
1350 m_text->Show(show);
1351
1352 return true;
1353 }
1354
1355 bool wxComboCtrlBase::SetFont ( const wxFont& font )
1356 {
1357 if ( !wxControl::SetFont(font) )
1358 return false;
1359
1360 if ( m_text )
1361 {
1362 // Without hiding the wxTextCtrl there would be some
1363 // visible 'flicker' (at least on Windows XP).
1364 m_text->Hide();
1365 m_text->SetFont(font);
1366 OnResize();
1367 m_text->Show();
1368 }
1369
1370 return true;
1371 }
1372
1373 #if wxUSE_TOOLTIPS
1374 void wxComboCtrlBase::DoSetToolTip(wxToolTip *tooltip)
1375 {
1376 wxControl::DoSetToolTip(tooltip);
1377
1378 // Set tool tip for button and text box
1379 if ( tooltip )
1380 {
1381 const wxString &tip = tooltip->GetTip();
1382 if ( m_text ) m_text->SetToolTip(tip);
1383 if ( m_btn ) m_btn->SetToolTip(tip);
1384 }
1385 else
1386 {
1387 if ( m_text ) m_text->SetToolTip( NULL );
1388 if ( m_btn ) m_btn->SetToolTip( NULL );
1389 }
1390 }
1391 #endif // wxUSE_TOOLTIPS
1392
1393 #if wxUSE_VALIDATORS
1394 void wxComboCtrlBase::SetValidator(const wxValidator& validator)
1395 {
1396 wxTextCtrl* textCtrl = GetTextCtrl();
1397
1398 if ( textCtrl )
1399 textCtrl->SetValidator( validator );
1400 else
1401 wxControl::SetValidator( validator );
1402 }
1403
1404 wxValidator* wxComboCtrlBase::GetValidator()
1405 {
1406 wxTextCtrl* textCtrl = GetTextCtrl();
1407
1408 return textCtrl ? textCtrl->GetValidator() : wxControl::GetValidator();
1409 }
1410 #endif // wxUSE_VALIDATORS
1411
1412 bool wxComboCtrlBase::SetForegroundColour(const wxColour& colour)
1413 {
1414 if ( wxControl::SetForegroundColour(colour) )
1415 {
1416 if ( m_text )
1417 m_text->SetForegroundColour(colour);
1418 return true;
1419 }
1420 return false;
1421 }
1422
1423 bool wxComboCtrlBase::SetBackgroundColour(const wxColour& colour)
1424 {
1425 if ( wxControl::SetBackgroundColour(colour) )
1426 {
1427 if ( m_text )
1428 m_text->SetBackgroundColour(colour);
1429 return true;
1430 }
1431 return false;
1432 }
1433 // ----------------------------------------------------------------------------
1434 // painting
1435 // ----------------------------------------------------------------------------
1436
1437 #if (!defined(__WXMSW__)) || defined(__WXUNIVERSAL__)
1438 // prepare combo box background on area in a way typical on platform
1439 void wxComboCtrlBase::PrepareBackground( wxDC& dc, const wxRect& rect, int flags ) const
1440 {
1441 wxSize sz = GetClientSize();
1442 bool isEnabled;
1443 bool doDrawFocusRect; // also selected
1444
1445 // For smaller size control (and for disabled background) use less spacing
1446 int focusSpacingX;
1447 int focusSpacingY;
1448
1449 if ( !(flags & wxCONTROL_ISSUBMENU) )
1450 {
1451 // Drawing control
1452 isEnabled = IsEnabled();
1453 doDrawFocusRect = ShouldDrawFocus() && !(m_iFlags & wxCC_FULL_BUTTON);
1454
1455 // Windows-style: for smaller size control (and for disabled background) use less spacing
1456 focusSpacingX = isEnabled ? 2 : 1;
1457 focusSpacingY = sz.y > (GetCharHeight()+2) && isEnabled ? 2 : 1;
1458 }
1459 else
1460 {
1461 // Drawing a list item
1462 isEnabled = true; // they are never disabled
1463 doDrawFocusRect = (flags & wxCONTROL_SELECTED) != 0;
1464
1465 focusSpacingX = 0;
1466 focusSpacingY = 0;
1467 }
1468
1469 // Set the background sub-rectangle for selection, disabled etc
1470 wxRect selRect(rect);
1471 selRect.y += focusSpacingY;
1472 selRect.height -= (focusSpacingY*2);
1473
1474 int wcp = 0;
1475
1476 if ( !(flags & wxCONTROL_ISSUBMENU) )
1477 wcp += m_widthCustomPaint;
1478
1479 selRect.x += wcp + focusSpacingX;
1480 selRect.width -= wcp + (focusSpacingX*2);
1481
1482 wxColour bgCol;
1483 wxColour fgCol;
1484
1485 bool doDrawSelRect = true;
1486
1487 // Determine foreground colour
1488 if ( isEnabled )
1489 {
1490 if ( doDrawFocusRect )
1491 {
1492 fgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
1493 }
1494 else if ( m_hasFgCol )
1495 {
1496 // Honour the custom foreground colour
1497 fgCol = GetForegroundColour();
1498 }
1499 else
1500 {
1501 fgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1502 }
1503 }
1504 else
1505 {
1506 fgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT);
1507 }
1508
1509 // Determine background colour
1510 if ( isEnabled )
1511 {
1512 if ( doDrawFocusRect )
1513 {
1514 bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
1515 }
1516 else if ( m_hasBgCol )
1517 {
1518 // Honour the custom background colour
1519 bgCol = GetBackgroundColour();
1520 }
1521 else
1522 {
1523 #ifndef __WXMAC__ // see note in OnThemeChange
1524 doDrawSelRect = false;
1525 bgCol = GetBackgroundColour();
1526 #else
1527 bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1528 #endif
1529 }
1530 }
1531 else
1532 {
1533 #ifndef __WXMAC__ // see note in OnThemeChange
1534 bgCol = GetBackgroundColour();
1535 #else
1536 bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1537 #endif
1538 }
1539
1540 dc.SetTextForeground( fgCol );
1541 dc.SetBrush( bgCol );
1542 if ( doDrawSelRect )
1543 {
1544 dc.SetPen( bgCol );
1545 dc.DrawRectangle( selRect );
1546 }
1547
1548 // Don't clip exactly to the selection rectangle so we can draw
1549 // to the non-selected area in front of it.
1550 wxRect clipRect(rect.x,rect.y,
1551 (selRect.x+selRect.width)-rect.x,rect.height);
1552 dc.SetClippingRegion(clipRect);
1553 }
1554 #else
1555 // Save the library size a bit for platforms that re-implement this.
1556 void wxComboCtrlBase::PrepareBackground( wxDC&, const wxRect&, int ) const
1557 {
1558 }
1559 #endif
1560
1561 void wxComboCtrlBase::DrawButton( wxDC& dc, const wxRect& rect, int flags )
1562 {
1563 int drawState = m_btnState;
1564
1565 if ( (m_iFlags & wxCC_BUTTON_STAYS_DOWN) &&
1566 GetPopupWindowState() >= Animating )
1567 drawState |= wxCONTROL_PRESSED;
1568
1569 wxRect drawRect(rect.x+m_btnSpacingX,
1570 rect.y+((rect.height-m_btnSize.y)/2),
1571 m_btnSize.x,
1572 m_btnSize.y);
1573
1574 // Make sure area is not larger than the control
1575 if ( drawRect.y < rect.y )
1576 drawRect.y = rect.y;
1577 if ( drawRect.height > rect.height )
1578 drawRect.height = rect.height;
1579
1580 bool enabled = IsEnabled();
1581
1582 if ( !enabled )
1583 drawState |= wxCONTROL_DISABLED;
1584
1585 if ( !m_bmpNormal.Ok() )
1586 {
1587 if ( flags & Button_BitmapOnly )
1588 return;
1589
1590 // Need to clear button background even if m_btn is present
1591 if ( flags & Button_PaintBackground )
1592 {
1593 wxColour bgCol;
1594
1595 if ( m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE )
1596 bgCol = GetParent()->GetBackgroundColour();
1597 else
1598 bgCol = GetBackgroundColour();
1599
1600 dc.SetBrush(bgCol);
1601 dc.SetPen(bgCol);
1602 dc.DrawRectangle(rect);
1603 }
1604
1605 // Draw standard button
1606 wxRendererNative::Get().DrawComboBoxDropButton(this,
1607 dc,
1608 drawRect,
1609 drawState);
1610 }
1611 else
1612 {
1613 // Draw bitmap
1614
1615 wxBitmap* pBmp;
1616
1617 if ( !enabled )
1618 pBmp = &m_bmpDisabled;
1619 else if ( m_btnState & wxCONTROL_PRESSED )
1620 pBmp = &m_bmpPressed;
1621 else if ( m_btnState & wxCONTROL_CURRENT )
1622 pBmp = &m_bmpHover;
1623 else
1624 pBmp = &m_bmpNormal;
1625
1626 if ( m_blankButtonBg )
1627 {
1628 // If using blank button background, we need to clear its background
1629 // with button face colour instead of colour for rest of the control.
1630 if ( flags & Button_PaintBackground )
1631 {
1632 wxColour bgCol = GetParent()->GetBackgroundColour(); //wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
1633 //wxColour bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1634 dc.SetPen(bgCol);
1635 dc.SetBrush(bgCol);
1636 dc.DrawRectangle(rect);
1637 }
1638
1639 if ( !(flags & Button_BitmapOnly) )
1640 {
1641 wxRendererNative::Get().DrawPushButton(this,
1642 dc,
1643 drawRect,
1644 drawState);
1645 }
1646 }
1647 else
1648
1649 {
1650 // Need to clear button background even if m_btn is present
1651 // (assume non-button background was cleared just before this call so brushes are good)
1652 if ( flags & Button_PaintBackground )
1653 dc.DrawRectangle(rect);
1654 }
1655
1656 // Draw bitmap centered in drawRect
1657 dc.DrawBitmap(*pBmp,
1658 drawRect.x + (drawRect.width-pBmp->GetWidth())/2,
1659 drawRect.y + (drawRect.height-pBmp->GetHeight())/2,
1660 true);
1661 }
1662 }
1663
1664 void wxComboCtrlBase::RecalcAndRefresh()
1665 {
1666 if ( IsCreated() )
1667 {
1668 wxSizeEvent evt(GetSize(),GetId());
1669 GetEventHandler()->ProcessEvent(evt);
1670 Refresh();
1671 }
1672 }
1673
1674 // ----------------------------------------------------------------------------
1675 // miscellaneous event handlers
1676 // ----------------------------------------------------------------------------
1677
1678 void wxComboCtrlBase::OnTextCtrlEvent(wxCommandEvent& event)
1679 {
1680 if ( event.GetEventType() == wxEVT_COMMAND_TEXT_UPDATED )
1681 {
1682 if ( m_ignoreEvtText > 0 )
1683 {
1684 m_ignoreEvtText--;
1685 return;
1686 }
1687 }
1688
1689 // Change event id, object and string before relaying it forward
1690 event.SetId(GetId());
1691 wxString s = event.GetString();
1692 event.SetEventObject(this);
1693 event.SetString(s);
1694 event.Skip();
1695 }
1696
1697 // call if cursor is on button area or mouse is captured for the button
1698 bool wxComboCtrlBase::HandleButtonMouseEvent( wxMouseEvent& event,
1699 int flags )
1700 {
1701 int type = event.GetEventType();
1702
1703 if ( type == wxEVT_MOTION )
1704 {
1705 if ( (flags & wxCC_MF_ON_BUTTON) &&
1706 IsPopupWindowState(Hidden) )
1707 {
1708 if ( !(m_btnState & wxCONTROL_CURRENT) )
1709 {
1710 // Mouse hover begins
1711 m_btnState |= wxCONTROL_CURRENT;
1712 if ( HasCapture() ) // Retain pressed state.
1713 m_btnState |= wxCONTROL_PRESSED;
1714 Refresh();
1715 }
1716 }
1717 else if ( (m_btnState & wxCONTROL_CURRENT) )
1718 {
1719 // Mouse hover ends
1720 m_btnState &= ~(wxCONTROL_CURRENT|wxCONTROL_PRESSED);
1721 Refresh();
1722 }
1723 }
1724 else if ( type == wxEVT_LEFT_DOWN || type == wxEVT_LEFT_DCLICK )
1725 {
1726 if ( flags & (wxCC_MF_ON_CLICK_AREA|wxCC_MF_ON_BUTTON) )
1727 {
1728 m_btnState |= wxCONTROL_PRESSED;
1729 Refresh();
1730
1731 if ( !(m_iFlags & wxCC_POPUP_ON_MOUSE_UP) )
1732 OnButtonClick();
1733 else
1734 // If showing popup now, do not capture mouse or there will be interference
1735 CaptureMouse();
1736 }
1737 }
1738 else if ( type == wxEVT_LEFT_UP )
1739 {
1740
1741 // Only accept event if mouse was left-press was previously accepted
1742 if ( HasCapture() )
1743 ReleaseMouse();
1744
1745 if ( m_btnState & wxCONTROL_PRESSED )
1746 {
1747 // If mouse was inside, fire the click event.
1748 if ( m_iFlags & wxCC_POPUP_ON_MOUSE_UP )
1749 {
1750 if ( flags & (wxCC_MF_ON_CLICK_AREA|wxCC_MF_ON_BUTTON) )
1751 OnButtonClick();
1752 }
1753
1754 m_btnState &= ~(wxCONTROL_PRESSED);
1755 Refresh();
1756 }
1757 }
1758 else if ( type == wxEVT_LEAVE_WINDOW )
1759 {
1760 if ( m_btnState & (wxCONTROL_CURRENT|wxCONTROL_PRESSED) )
1761 {
1762 m_btnState &= ~(wxCONTROL_CURRENT);
1763
1764 // Mouse hover ends
1765 if ( IsPopupWindowState(Hidden) )
1766 {
1767 m_btnState &= ~(wxCONTROL_PRESSED);
1768 Refresh();
1769 }
1770 }
1771 }
1772 else
1773 return false;
1774
1775 // Never have 'hot' state when popup is being shown
1776 // (this is mostly needed because of the animation).
1777 if ( !IsPopupWindowState(Hidden) )
1778 m_btnState &= ~wxCONTROL_CURRENT;
1779
1780 return true;
1781 }
1782
1783 // returns true if event was consumed or filtered
1784 bool wxComboCtrlBase::PreprocessMouseEvent( wxMouseEvent& event,
1785 int WXUNUSED(flags) )
1786 {
1787 wxLongLong t = ::wxGetLocalTimeMillis();
1788 int evtType = event.GetEventType();
1789
1790 #if USES_WXPOPUPWINDOW || USES_GENERICTLW
1791 if ( m_popupWinType != POPUPWIN_WXPOPUPTRANSIENTWINDOW )
1792 {
1793 if ( IsPopupWindowState(Visible) &&
1794 ( evtType == wxEVT_LEFT_DOWN || evtType == wxEVT_RIGHT_DOWN ) )
1795 {
1796 HidePopup(true);
1797 return true;
1798 }
1799 }
1800 #endif
1801
1802 // Filter out clicks on button immediately after popup dismiss
1803 if ( evtType == wxEVT_LEFT_DOWN && t < m_timeCanAcceptClick )
1804 {
1805 event.SetEventType(0);
1806 return true;
1807 }
1808
1809 return false;
1810 }
1811
1812 void wxComboCtrlBase::HandleNormalMouseEvent( wxMouseEvent& event )
1813 {
1814 int evtType = event.GetEventType();
1815
1816 if ( (evtType == wxEVT_LEFT_DOWN || evtType == wxEVT_LEFT_DCLICK) &&
1817 (m_windowStyle & wxCB_READONLY) )
1818 {
1819 if ( GetPopupWindowState() >= Animating )
1820 {
1821 #if USES_WXPOPUPWINDOW
1822 // Click here always hides the popup.
1823 if ( m_popupWinType == POPUPWIN_WXPOPUPWINDOW )
1824 HidePopup(true);
1825 #endif
1826 }
1827 else
1828 {
1829 if ( !(m_windowStyle & wxCC_SPECIAL_DCLICK) )
1830 {
1831 // In read-only mode, clicking the text is the
1832 // same as clicking the button.
1833 OnButtonClick();
1834 }
1835 else if ( /*evtType == wxEVT_LEFT_UP || */evtType == wxEVT_LEFT_DCLICK )
1836 {
1837 //if ( m_popupInterface->CycleValue() )
1838 // Refresh();
1839 if ( m_popupInterface )
1840 m_popupInterface->OnComboDoubleClick();
1841 }
1842 }
1843 }
1844 else if ( evtType == wxEVT_MOUSEWHEEL )
1845 {
1846 if ( IsPopupShown() )
1847 {
1848 // relay (some) mouse events to the popup
1849 m_popup->GetEventHandler()->ProcessEvent(event);
1850 }
1851 else if ( event.GetWheelAxis() == 0 &&
1852 event.GetWheelRotation() != 0 &&
1853 event.GetModifiers() == 0 )
1854 {
1855 // Translate mousewheel actions into key up/down. This is
1856 // the simplest way of getting native behaviour: scrolling the
1857 // wheel moves selection up/down by one item.
1858 wxKeyEvent kevent(wxEVT_KEY_DOWN);
1859 kevent.m_keyCode = event.GetWheelRotation() > 0
1860 ? WXK_UP
1861 : WXK_DOWN;
1862 GetEventHandler()->ProcessEvent(kevent);
1863 }
1864 else
1865 {
1866 event.Skip();
1867 }
1868 }
1869 else if ( evtType )
1870 {
1871 event.Skip();
1872 }
1873 }
1874
1875 void wxComboCtrlBase::OnKeyEvent(wxKeyEvent& event)
1876 {
1877 if ( IsPopupShown() )
1878 {
1879 // pass it to the popped up control
1880 GetPopupControl()->GetControl()->GetEventHandler()->ProcessEvent(event);
1881 }
1882 else // no popup
1883 {
1884 wxWindow* mainCtrl = GetMainWindowOfCompositeControl();
1885
1886 if ( mainCtrl->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
1887 {
1888 if ( mainCtrl->HandleAsNavigationKey(event) )
1889 return;
1890 }
1891
1892 if ( IsKeyPopupToggle(event) )
1893 {
1894 OnButtonClick();
1895 return;
1896 }
1897
1898 int comboStyle = GetWindowStyle();
1899 wxComboPopup* popupInterface = GetPopupControl();
1900
1901 if ( !popupInterface )
1902 {
1903 event.Skip();
1904 return;
1905 }
1906
1907 int keycode = event.GetKeyCode();
1908
1909 if ( (comboStyle & wxCB_READONLY) ||
1910 (keycode != WXK_RIGHT && keycode != WXK_LEFT) )
1911 {
1912 popupInterface->OnComboKeyEvent(event);
1913 }
1914 else
1915 event.Skip();
1916 }
1917 }
1918
1919 void wxComboCtrlBase::OnCharEvent(wxKeyEvent& event)
1920 {
1921 if ( IsPopupShown() )
1922 {
1923 // pass it to the popped up control
1924 GetPopupControl()->GetControl()->GetEventHandler()->ProcessEvent(event);
1925 }
1926 else // no popup
1927 {
1928 wxComboPopup* popupInterface = GetPopupControl();
1929 if ( popupInterface )
1930 {
1931 popupInterface->OnComboCharEvent(event);
1932 }
1933 else
1934 {
1935 event.Skip();
1936 }
1937 }
1938 }
1939
1940 void wxComboCtrlBase::OnFocusEvent( wxFocusEvent& event )
1941 {
1942 if ( event.GetEventType() == wxEVT_SET_FOCUS )
1943 {
1944 wxWindow* tc = GetTextCtrl();
1945 if ( tc && tc != DoFindFocus() )
1946 {
1947 tc->SetFocus();
1948 }
1949 }
1950
1951 Refresh();
1952 }
1953
1954 void wxComboCtrlBase::OnIdleEvent( wxIdleEvent& WXUNUSED(event) )
1955 {
1956 if ( m_resetFocus )
1957 {
1958 m_resetFocus = false;
1959 wxWindow* tc = GetTextCtrl();
1960 if ( tc )
1961 tc->SetFocus();
1962 }
1963 }
1964
1965 void wxComboCtrlBase::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
1966 {
1967 OnThemeChange();
1968 // left margin may also have changed
1969 if ( !(m_iFlags & wxCC_IFLAG_LEFT_MARGIN_SET) )
1970 m_marginLeft = GetNativeTextIndent();
1971 RecalcAndRefresh();
1972 }
1973
1974 // ----------------------------------------------------------------------------
1975 // popup handling
1976 // ----------------------------------------------------------------------------
1977
1978 // Create popup window and the child control
1979 void wxComboCtrlBase::CreatePopup()
1980 {
1981 wxComboPopup* popupInterface = m_popupInterface;
1982 wxWindow* popup;
1983
1984 if ( !m_winPopup )
1985 {
1986 #ifdef wxComboPopupWindowBase2
1987 if ( m_iFlags & wxCC_IFLAG_USE_ALT_POPUP )
1988 {
1989 #if !USES_GENERICTLW
1990 m_winPopup = new wxComboPopupWindowBase2( this, wxNO_BORDER );
1991 #else
1992 int tlwFlags = wxNO_BORDER;
1993 #ifdef wxCC_GENERIC_TLW_IS_FRAME
1994 tlwFlags |= wxFRAME_NO_TASKBAR;
1995 #endif
1996
1997 #ifdef wxCC_GENERIC_TLW_IS_NONOWNEDWINDOW
1998 m_winPopup = new wxComboPopupWindowBase2( this, wxID_ANY,
1999 wxPoint(-21,-21), wxSize(20, 20),
2000 tlwFlags );
2001 #else
2002 m_winPopup = new wxComboPopupWindowBase2( this, wxID_ANY, wxEmptyString,
2003 wxPoint(-21,-21), wxSize(20, 20),
2004 tlwFlags );
2005 #endif
2006 #endif
2007 m_popupWinType = SECONDARY_POPUP_TYPE;
2008 }
2009 else
2010 #endif // wxComboPopupWindowBase2
2011 {
2012 m_winPopup = new wxComboPopupWindow( this, wxNO_BORDER );
2013 m_popupWinType = PRIMARY_POPUP_TYPE;
2014 }
2015 m_popupWinEvtHandler = new wxComboPopupWindowEvtHandler(this);
2016 m_winPopup->PushEventHandler(m_popupWinEvtHandler);
2017 }
2018
2019 popupInterface->Create(m_winPopup);
2020 m_popup = popup = popupInterface->GetControl();
2021
2022 m_popupEvtHandler = new wxComboPopupEvtHandler(this);
2023 popup->PushEventHandler( m_popupEvtHandler );
2024
2025 // This may be helpful on some platforms
2026 // (eg. it bypasses a wxGTK popupwindow bug where
2027 // window is not initially hidden when it should be)
2028 m_winPopup->Hide();
2029
2030 popupInterface->m_iFlags |= wxCP_IFLAG_CREATED;
2031 }
2032
2033 // Destroy popup window and the child control
2034 void wxComboCtrlBase::DestroyPopup()
2035 {
2036 HidePopup(true);
2037
2038 if ( m_popup )
2039 m_popup->RemoveEventHandler(m_popupEvtHandler);
2040
2041 wxDELETE(m_popupEvtHandler);
2042
2043 wxDELETE(m_popupInterface);
2044
2045 if ( m_winPopup )
2046 {
2047 m_winPopup->RemoveEventHandler(m_popupWinEvtHandler);
2048 wxDELETE(m_popupWinEvtHandler);
2049 m_winPopup->Destroy();
2050 m_winPopup = NULL;
2051 }
2052
2053 m_popup = NULL;
2054 }
2055
2056 void wxComboCtrlBase::DoSetPopupControl(wxComboPopup* iface)
2057 {
2058 wxCHECK_RET( iface, wxT("no popup interface set for wxComboCtrl") );
2059
2060 DestroyPopup();
2061
2062 iface->InitBase(this);
2063 iface->Init();
2064
2065 m_popupInterface = iface;
2066
2067 if ( !iface->LazyCreate() )
2068 {
2069 CreatePopup();
2070 }
2071 else
2072 {
2073 m_popup = NULL;
2074 }
2075
2076 // This must be done after creation
2077 if ( m_valueString.length() )
2078 {
2079 iface->SetStringValue(m_valueString);
2080 //Refresh();
2081 }
2082 }
2083
2084 // Ensures there is atleast the default popup
2085 void wxComboCtrlBase::EnsurePopupControl()
2086 {
2087 if ( !m_popupInterface )
2088 SetPopupControl(NULL);
2089 }
2090
2091 void wxComboCtrlBase::OnButtonClick()
2092 {
2093 // Derived classes can override this method for totally custom
2094 // popup action
2095 switch ( GetPopupWindowState() )
2096 {
2097 case Hidden:
2098 {
2099 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_DROPDOWN, GetId());
2100 event.SetEventObject(this);
2101 HandleWindowEvent(event);
2102
2103 ShowPopup();
2104 break;
2105 }
2106
2107 case Animating:
2108 case Visible:
2109 {
2110 HidePopup(true);
2111 break;
2112 }
2113 }
2114 }
2115
2116 void wxComboCtrlBase::ShowPopup()
2117 {
2118 EnsurePopupControl();
2119 wxCHECK_RET( !IsPopupWindowState(Visible), wxT("popup window already shown") );
2120
2121 if ( IsPopupWindowState(Animating) )
2122 return;
2123
2124 SetFocus();
2125
2126 // Space above and below
2127 int screenHeight;
2128 wxPoint scrPos;
2129 int spaceAbove;
2130 int spaceBelow;
2131 int maxHeightPopup;
2132 wxSize ctrlSz = GetSize();
2133
2134 screenHeight = wxSystemSettings::GetMetric( wxSYS_SCREEN_Y );
2135 scrPos = GetParent()->ClientToScreen(GetPosition());
2136
2137 spaceAbove = scrPos.y;
2138 spaceBelow = screenHeight - spaceAbove - ctrlSz.y;
2139
2140 maxHeightPopup = spaceBelow;
2141 if ( spaceAbove > spaceBelow )
2142 maxHeightPopup = spaceAbove;
2143
2144 // Width
2145 int widthPopup = ctrlSz.x + m_extLeft + m_extRight;
2146
2147 if ( widthPopup < m_widthMinPopup )
2148 widthPopup = m_widthMinPopup;
2149
2150 wxWindow* winPopup = m_winPopup;
2151 wxWindow* popup;
2152
2153 // Need to disable tab traversal of parent
2154 //
2155 // NB: This is to fix a bug in wxMSW. In theory it could also be fixed
2156 // by, for instance, adding check to window.cpp:wxWindowMSW::MSWProcessMessage
2157 // that if transient popup is open, then tab traversal is to be ignored.
2158 // However, I think this code would still be needed for cases where
2159 // transient popup doesn't work yet (wxWinCE?).
2160 wxWindow* mainCtrl = GetMainWindowOfCompositeControl();
2161 wxWindow* parent = mainCtrl->GetParent();
2162 int parentFlags = parent->GetWindowStyle();
2163 if ( parentFlags & wxTAB_TRAVERSAL )
2164 {
2165 parent->SetWindowStyle( parentFlags & ~(wxTAB_TRAVERSAL) );
2166 m_iFlags |= wxCC_IFLAG_PARENT_TAB_TRAVERSAL;
2167 }
2168
2169 if ( !winPopup )
2170 {
2171 CreatePopup();
2172 winPopup = m_winPopup;
2173 popup = m_popup;
2174 }
2175 else
2176 {
2177 popup = m_popup;
2178 }
2179
2180 winPopup->Enable();
2181
2182 wxASSERT( !m_popup || m_popup == popup ); // Consistency check.
2183
2184 wxSize adjustedSize = m_popupInterface->GetAdjustedSize(widthPopup,
2185 m_heightPopup<=0?DEFAULT_POPUP_HEIGHT:m_heightPopup,
2186 maxHeightPopup);
2187
2188 popup->SetSize(adjustedSize);
2189 popup->Move(0,0);
2190 m_popupInterface->OnPopup();
2191
2192 //
2193 // Reposition and resize popup window
2194 //
2195
2196 wxSize szp = popup->GetSize();
2197
2198 int popupX;
2199 int popupY = scrPos.y + ctrlSz.y;
2200
2201 // Default anchor is wxLEFT
2202 int anchorSide = m_anchorSide;
2203 if ( !anchorSide )
2204 anchorSide = wxLEFT;
2205
2206 int rightX = scrPos.x + ctrlSz.x + m_extRight - szp.x;
2207 int leftX = scrPos.x - m_extLeft;
2208
2209 if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
2210 leftX -= ctrlSz.x;
2211
2212 int screenWidth = wxSystemSettings::GetMetric( wxSYS_SCREEN_X );
2213
2214 // If there is not enough horizontal space, anchor on the other side.
2215 // If there is no space even then, place the popup at x 0.
2216 if ( anchorSide == wxRIGHT )
2217 {
2218 if ( rightX < 0 )
2219 {
2220 if ( (leftX+szp.x) < screenWidth )
2221 anchorSide = wxLEFT;
2222 else
2223 anchorSide = 0;
2224 }
2225 }
2226 else
2227 {
2228 if ( (leftX+szp.x) >= screenWidth )
2229 {
2230 if ( rightX >= 0 )
2231 anchorSide = wxRIGHT;
2232 else
2233 anchorSide = 0;
2234 }
2235 }
2236
2237 // Select x coordinate according to the anchor side
2238 if ( anchorSide == wxRIGHT )
2239 popupX = rightX;
2240 else if ( anchorSide == wxLEFT )
2241 popupX = leftX;
2242 else
2243 popupX = 0;
2244
2245 int showFlags = CanDeferShow;
2246
2247 if ( spaceBelow < szp.y )
2248 {
2249 popupY = scrPos.y - szp.y;
2250 showFlags |= ShowAbove;
2251 }
2252
2253 #if INSTALL_TOPLEV_HANDLER
2254 // Put top level window event handler into place
2255 if ( m_popupWinType == POPUPWIN_WXPOPUPWINDOW )
2256 {
2257 if ( !m_toplevEvtHandler )
2258 m_toplevEvtHandler = new wxComboFrameEventHandler(this);
2259
2260 wxWindow* toplev = ::wxGetTopLevelParent( this );
2261 wxASSERT( toplev );
2262 ((wxComboFrameEventHandler*)m_toplevEvtHandler)->OnPopup();
2263 toplev->PushEventHandler( m_toplevEvtHandler );
2264 }
2265 #endif
2266
2267 // Set string selection (must be this way instead of SetStringSelection)
2268 if ( m_text )
2269 {
2270 if ( !(m_iFlags & wxCC_NO_TEXT_AUTO_SELECT) )
2271 m_text->SelectAll();
2272
2273 m_popupInterface->SetStringValue( m_text->GetValue() );
2274 }
2275 else
2276 {
2277 // This is neede since focus/selection indication may change when popup is shown
2278 Refresh();
2279 }
2280
2281 // This must be after SetStringValue
2282 m_popupWinState = Animating;
2283
2284 wxRect popupWinRect( popupX, popupY, szp.x, szp.y );
2285
2286 m_popup = popup;
2287 if ( (m_iFlags & wxCC_IFLAG_DISABLE_POPUP_ANIM) ||
2288 AnimateShow( popupWinRect, showFlags ) )
2289 {
2290 DoShowPopup( popupWinRect, showFlags );
2291 }
2292 }
2293
2294 bool wxComboCtrlBase::AnimateShow( const wxRect& WXUNUSED(rect), int WXUNUSED(flags) )
2295 {
2296 return true;
2297 }
2298
2299 void wxComboCtrlBase::DoShowPopup( const wxRect& rect, int WXUNUSED(flags) )
2300 {
2301 wxWindow* winPopup = m_winPopup;
2302
2303 if ( IsPopupWindowState(Animating) )
2304 {
2305 // Make sure the popup window is shown in the right position.
2306 // Should not matter even if animation already did this.
2307
2308 // Some platforms (GTK) may like SetSize and Move to be separate
2309 // (though the bug was probably fixed).
2310 winPopup->SetSize( rect );
2311
2312 #if USES_WXPOPUPTRANSIENTWINDOW
2313 if ( m_popupWinType == POPUPWIN_WXPOPUPTRANSIENTWINDOW )
2314 ((wxPopupTransientWindow*)winPopup)->Popup(m_popup);
2315 else
2316 #endif
2317 winPopup->Show();
2318
2319 m_popupWinState = Visible;
2320
2321 // If popup window was a generic top-level window, or the
2322 // wxPopupWindow implemenation on this platform is classified as
2323 // perfect, then we should be able to safely set focus to the popup
2324 // control.
2325 if ( IsPopupWinTypePerfect(m_popupWinType) )
2326 m_popup->SetFocus();
2327 }
2328 else if ( IsPopupWindowState(Hidden) )
2329 {
2330 // Animation was aborted
2331
2332 wxASSERT( !winPopup->IsShown() );
2333
2334 m_popupWinState = Hidden;
2335 }
2336
2337 Refresh();
2338 }
2339
2340 void wxComboCtrlBase::OnPopupDismiss(bool generateEvent)
2341 {
2342 // Just in case, avoid double dismiss
2343 if ( IsPopupWindowState(Hidden) )
2344 return;
2345
2346 // This must be set before focus - otherwise there will be recursive
2347 // OnPopupDismisses.
2348 m_popupWinState = Hidden;
2349
2350 //SetFocus();
2351 m_winPopup->Disable();
2352
2353 // Inform popup control itself
2354 m_popupInterface->OnDismiss();
2355
2356 if ( m_popupEvtHandler )
2357 ((wxComboPopupEvtHandler*)m_popupEvtHandler)->OnPopupDismiss();
2358
2359 #if INSTALL_TOPLEV_HANDLER
2360 // Remove top level window event handler
2361 if ( m_toplevEvtHandler )
2362 {
2363 wxWindow* toplev = ::wxGetTopLevelParent( this );
2364 if ( toplev )
2365 toplev->RemoveEventHandler( m_toplevEvtHandler );
2366 }
2367 #endif
2368
2369 m_timeCanAcceptClick = ::wxGetLocalTimeMillis();
2370
2371 if ( m_popupWinType == POPUPWIN_WXPOPUPTRANSIENTWINDOW )
2372 m_timeCanAcceptClick += 150;
2373
2374 // If cursor not on dropdown button, then clear its state
2375 // (technically not required by all ports, but do it for all just in case)
2376 if ( !m_btnArea.Contains(ScreenToClient(::wxGetMousePosition())) )
2377 m_btnState = 0;
2378
2379 // Return parent's tab traversal flag.
2380 // See ShowPopup for notes.
2381 if ( m_iFlags & wxCC_IFLAG_PARENT_TAB_TRAVERSAL )
2382 {
2383 wxWindow* parent = GetParent();
2384 parent->SetWindowStyle( parent->GetWindowStyle() | wxTAB_TRAVERSAL );
2385 m_iFlags &= ~(wxCC_IFLAG_PARENT_TAB_TRAVERSAL);
2386 }
2387
2388 // refresh control (necessary even if m_text)
2389 Refresh();
2390
2391 SetFocus();
2392
2393 if ( generateEvent )
2394 {
2395 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_CLOSEUP, GetId());
2396 event.SetEventObject(this);
2397 HandleWindowEvent(event);
2398 }
2399 }
2400
2401 void wxComboCtrlBase::HidePopup(bool generateEvent)
2402 {
2403 // Should be able to call this without popup interface
2404 if ( IsPopupWindowState(Hidden) )
2405 return;
2406
2407 // transfer value and show it in textctrl, if any
2408 if ( !IsPopupWindowState(Animating) )
2409 SetValue( m_popupInterface->GetStringValue() );
2410
2411 m_winPopup->Hide();
2412
2413 OnPopupDismiss(generateEvent);
2414 }
2415
2416 // ----------------------------------------------------------------------------
2417 // customization methods
2418 // ----------------------------------------------------------------------------
2419
2420 void wxComboCtrlBase::SetButtonPosition( int width, int height,
2421 int side, int spacingX )
2422 {
2423 m_btnWid = width;
2424 m_btnHei = height;
2425 m_btnSide = side;
2426 m_btnSpacingX = spacingX;
2427
2428 if ( width > 0 || height > 0 || spacingX )
2429 m_iFlags |= wxCC_IFLAG_HAS_NONSTANDARD_BUTTON;
2430
2431 RecalcAndRefresh();
2432 }
2433
2434 wxSize wxComboCtrlBase::GetButtonSize()
2435 {
2436 if ( m_btnSize.x > 0 )
2437 return m_btnSize;
2438
2439 wxSize retSize(m_btnWid,m_btnHei);
2440
2441 // Need to call CalculateAreas now if button size is
2442 // is not explicitly specified.
2443 if ( retSize.x <= 0 || retSize.y <= 0)
2444 {
2445 OnResize();
2446
2447 retSize = m_btnSize;
2448 }
2449
2450 return retSize;
2451 }
2452
2453 void wxComboCtrlBase::SetButtonBitmaps( const wxBitmap& bmpNormal,
2454 bool blankButtonBg,
2455 const wxBitmap& bmpPressed,
2456 const wxBitmap& bmpHover,
2457 const wxBitmap& bmpDisabled )
2458 {
2459 m_bmpNormal = bmpNormal;
2460 m_blankButtonBg = blankButtonBg;
2461
2462 if ( bmpPressed.Ok() )
2463 m_bmpPressed = bmpPressed;
2464 else
2465 m_bmpPressed = bmpNormal;
2466
2467 if ( bmpHover.Ok() )
2468 m_bmpHover = bmpHover;
2469 else
2470 m_bmpHover = bmpNormal;
2471
2472 if ( bmpDisabled.Ok() )
2473 m_bmpDisabled = bmpDisabled;
2474 else
2475 m_bmpDisabled = bmpNormal;
2476
2477 RecalcAndRefresh();
2478 }
2479
2480 void wxComboCtrlBase::SetCustomPaintWidth( int width )
2481 {
2482 if ( m_text )
2483 {
2484 // move textctrl accordingly
2485 wxRect r = m_text->GetRect();
2486 int inc = width - m_widthCustomPaint;
2487 r.x += inc;
2488 r.width -= inc;
2489 m_text->SetSize( r );
2490 }
2491
2492 m_widthCustomPaint = width;
2493
2494 RecalcAndRefresh();
2495 }
2496
2497 bool wxComboCtrlBase::DoSetMargins(const wxPoint& margins)
2498 {
2499 // For general sanity's sake, we ignore top margin. Instead
2500 // we will always try to center the text vertically.
2501 bool res = true;
2502
2503 if ( margins.x != -1 )
2504 {
2505 m_marginLeft = margins.x;
2506 m_iFlags |= wxCC_IFLAG_LEFT_MARGIN_SET;
2507 }
2508 else
2509 {
2510 m_marginLeft = GetNativeTextIndent();
2511 m_iFlags &= ~(wxCC_IFLAG_LEFT_MARGIN_SET);
2512 }
2513
2514 if ( margins.y != -1 )
2515 {
2516 res = false;
2517 }
2518
2519 RecalcAndRefresh();
2520
2521 return res;
2522 }
2523
2524 wxPoint wxComboCtrlBase::DoGetMargins() const
2525 {
2526 return wxPoint(m_marginLeft, -1);
2527 }
2528
2529 #if WXWIN_COMPATIBILITY_2_8
2530 void wxComboCtrlBase::SetTextIndent( int indent )
2531 {
2532 if ( indent < 0 )
2533 {
2534 m_marginLeft = GetNativeTextIndent();
2535 m_iFlags &= ~(wxCC_IFLAG_LEFT_MARGIN_SET);
2536 }
2537 else
2538 {
2539 m_marginLeft = indent;
2540 m_iFlags |= wxCC_IFLAG_LEFT_MARGIN_SET;
2541 }
2542
2543 RecalcAndRefresh();
2544 }
2545
2546 wxCoord wxComboCtrlBase::GetTextIndent() const
2547 {
2548 return m_marginLeft;
2549 }
2550 #endif
2551
2552 wxCoord wxComboCtrlBase::GetNativeTextIndent() const
2553 {
2554 return DEFAULT_TEXT_INDENT;
2555 }
2556
2557 void wxComboCtrlBase::SetTextCtrlStyle( int style )
2558 {
2559 m_textCtrlStyle = style;
2560
2561 if ( m_text )
2562 m_text->SetWindowStyle(style);
2563 }
2564
2565 // ----------------------------------------------------------------------------
2566 // methods forwarded to wxTextCtrl
2567 // ----------------------------------------------------------------------------
2568
2569 wxString wxComboCtrlBase::GetValue() const
2570 {
2571 if ( m_text )
2572 return m_text->GetValue();
2573 return m_valueString;
2574 }
2575
2576 void wxComboCtrlBase::SetValueWithEvent(const wxString& value, bool withEvent)
2577 {
2578 if ( m_text )
2579 {
2580 if ( !withEvent )
2581 m_ignoreEvtText++;
2582
2583 m_text->SetValue(value);
2584
2585 if ( !(m_iFlags & wxCC_NO_TEXT_AUTO_SELECT) )
2586 m_text->SelectAll();
2587 }
2588
2589 // Since wxComboPopup may want to paint the combo as well, we need
2590 // to set the string value here (as well as sometimes in ShowPopup).
2591 if ( m_valueString != value )
2592 {
2593 m_valueString = value;
2594
2595 EnsurePopupControl();
2596
2597 if (m_popupInterface)
2598 m_popupInterface->SetStringValue(value);
2599 }
2600
2601 Refresh();
2602 }
2603
2604 void wxComboCtrlBase::SetValue(const wxString& value)
2605 {
2606 SetValueWithEvent(value, false);
2607 }
2608
2609 // In this SetValue variant wxComboPopup::SetStringValue is not called
2610 void wxComboCtrlBase::SetText(const wxString& value)
2611 {
2612 // Unlike in SetValue(), this must be called here or
2613 // the behaviour will no be consistent in readonlys.
2614 EnsurePopupControl();
2615
2616 m_valueString = value;
2617
2618 if ( m_text )
2619 {
2620 m_ignoreEvtText++;
2621 m_text->SetValue( value );
2622 }
2623
2624 Refresh();
2625 }
2626
2627 void wxComboCtrlBase::Copy()
2628 {
2629 if ( m_text )
2630 m_text->Copy();
2631 }
2632
2633 void wxComboCtrlBase::Cut()
2634 {
2635 if ( m_text )
2636 m_text->Cut();
2637 }
2638
2639 void wxComboCtrlBase::Paste()
2640 {
2641 if ( m_text )
2642 m_text->Paste();
2643 }
2644
2645 void wxComboCtrlBase::SetInsertionPoint(long pos)
2646 {
2647 if ( m_text )
2648 m_text->SetInsertionPoint(pos);
2649 }
2650
2651 void wxComboCtrlBase::SetInsertionPointEnd()
2652 {
2653 if ( m_text )
2654 m_text->SetInsertionPointEnd();
2655 }
2656
2657 long wxComboCtrlBase::GetInsertionPoint() const
2658 {
2659 if ( m_text )
2660 return m_text->GetInsertionPoint();
2661
2662 return 0;
2663 }
2664
2665 long wxComboCtrlBase::GetLastPosition() const
2666 {
2667 if ( m_text )
2668 return m_text->GetLastPosition();
2669
2670 return 0;
2671 }
2672
2673 void wxComboCtrlBase::Replace(long from, long to, const wxString& value)
2674 {
2675 if ( m_text )
2676 m_text->Replace(from, to, value);
2677 }
2678
2679 void wxComboCtrlBase::Remove(long from, long to)
2680 {
2681 if ( m_text )
2682 m_text->Remove(from, to);
2683 }
2684
2685 void wxComboCtrlBase::SetSelection(long from, long to)
2686 {
2687 if ( m_text )
2688 m_text->SetSelection(from, to);
2689 }
2690
2691 void wxComboCtrlBase::Undo()
2692 {
2693 if ( m_text )
2694 m_text->Undo();
2695 }
2696
2697 bool wxComboCtrlBase::SetHint(const wxString& hint)
2698 {
2699 m_hintText = hint;
2700 bool res = true;
2701 if ( m_text )
2702 res = m_text->SetHint(hint);
2703 Refresh();
2704 return res;
2705 }
2706
2707 wxString wxComboCtrlBase::GetHint() const
2708 {
2709 return m_hintText;
2710 }
2711
2712 #endif // wxUSE_COMBOCTRL