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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: combobox.cpp
3 // Purpose: wxComboBox class
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 1998-01-01
7 // RCS-ID: $Id$
8 // Copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
13 #pragma implementation "combobox.h"
14 #endif
15
16 #include "wx/wxprec.h"
17
18 #include "wx/combobox.h"
19 #include "wx/button.h"
20 #include "wx/menu.h"
21 #include "wx/mac/uma.h"
22 #if TARGET_API_MAC_OSX
23 #ifndef __HIVIEW__
24 #include <HIToolbox/HIView.h>
25 #endif
26 #endif
27
28 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
29
30 // composite combobox implementation by Dan "Bud" Keith bud@otsys.com
31
32 #if TARGET_API_MAC_OSX
33 #define USE_HICOMBOBOX 1 //use hi combobox define
34 #else
35 #define USE_HICOMBOBOX 0
36 #endif
37
38 static int nextPopUpMenuId = 1000 ;
39 MenuHandle NewUniqueMenu()
40 {
41 MenuHandle handle = NewMenu( nextPopUpMenuId , "\pMenu" ) ;
42 nextPopUpMenuId++ ;
43 return handle ;
44 }
45
46 #if USE_HICOMBOBOX
47 static const EventTypeSpec eventList[] =
48 {
49 { kEventClassTextField , kEventTextAccepted } ,
50 } ;
51
52 static pascal OSStatus wxMacComboBoxEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
53 {
54 OSStatus result = eventNotHandledErr ;
55 wxComboBox* cb = (wxComboBox*) data ;
56
57 wxMacCarbonEvent cEvent( event ) ;
58
59 switch( cEvent.GetClass() )
60 {
61 case kEventClassTextField :
62 switch( cEvent.GetKind() )
63 {
64 case kEventTextAccepted :
65 {
66 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, cb->GetId() );
67 event.SetInt( cb->GetSelection() );
68 event.SetString( cb->GetStringSelection() );
69 event.SetEventObject( cb );
70 cb->GetEventHandler()->ProcessEvent( event );
71 }
72 break ;
73 default :
74 break ;
75 }
76 break ;
77 default :
78 break ;
79 }
80
81
82 return result ;
83 }
84
85 DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacComboBoxEventHandler )
86
87 #endif
88
89 // ----------------------------------------------------------------------------
90 // constants
91 // ----------------------------------------------------------------------------
92
93 // the margin between the text control and the choice
94 static const wxCoord MARGIN = 2;
95 #if TARGET_API_MAC_OSX
96 static const int POPUPWIDTH = 24;
97 #else
98 static const int POPUPWIDTH = 18;
99 #endif
100 static const int POPUPHEIGHT = 23;
101
102 // ----------------------------------------------------------------------------
103 // wxComboBoxText: text control forwards events to combobox
104 // ----------------------------------------------------------------------------
105
106 class wxComboBoxText : public wxTextCtrl
107 {
108 public:
109 wxComboBoxText( wxComboBox * cb )
110 : wxTextCtrl( cb , 1 )
111 {
112 m_cb = cb;
113 }
114
115 protected:
116 void OnChar( wxKeyEvent& event )
117 {
118 if ( event.GetKeyCode() == WXK_RETURN )
119 {
120 wxString value = GetValue();
121
122 if ( m_cb->GetCount() == 0 )
123 {
124 // make Enter generate "selected" event if there is only one item
125 // in the combobox - without it, it's impossible to select it at
126 // all!
127 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
128 event.SetInt( 0 );
129 event.SetString( value );
130 event.SetEventObject( m_cb );
131 m_cb->GetEventHandler()->ProcessEvent( event );
132 }
133 else
134 {
135 // add the item to the list if it's not there yet
136 if ( m_cb->FindString(value) == wxNOT_FOUND )
137 {
138 m_cb->Append(value);
139 m_cb->SetStringSelection(value);
140
141 // and generate the selected event for it
142 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
143 event.SetInt( m_cb->GetCount() - 1 );
144 event.SetString( value );
145 event.SetEventObject( m_cb );
146 m_cb->GetEventHandler()->ProcessEvent( event );
147 }
148
149 // This will invoke the dialog default action, such
150 // as the clicking the default button.
151
152 wxWindow *parent = GetParent();
153 while( parent && !parent->IsTopLevel() && parent->GetDefaultItem() == NULL ) {
154 parent = parent->GetParent() ;
155 }
156 if ( parent && parent->GetDefaultItem() )
157 {
158 wxButton *def = wxDynamicCast(parent->GetDefaultItem(),
159 wxButton);
160 if ( def && def->IsEnabled() )
161 {
162 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() );
163 event.SetEventObject(def);
164 def->Command(event);
165 return ;
166 }
167 }
168
169 return;
170 }
171 }
172
173 event.Skip();
174 }
175 private:
176 wxComboBox *m_cb;
177
178 DECLARE_EVENT_TABLE()
179 };
180
181 BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl)
182 EVT_CHAR( wxComboBoxText::OnChar)
183 END_EVENT_TABLE()
184
185 class wxComboBoxChoice : public wxChoice
186 {
187 public:
188 wxComboBoxChoice(wxComboBox *cb, int style)
189 : wxChoice( cb , 1 )
190 {
191 m_cb = cb;
192 }
193
194 protected:
195 void OnChoice( wxCommandEvent& e )
196 {
197 wxString s = e.GetString();
198
199 m_cb->DelegateChoice( s );
200 wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
201 event2.SetInt(m_cb->GetSelection());
202 event2.SetEventObject(m_cb);
203 event2.SetString(m_cb->GetStringSelection());
204 m_cb->ProcessCommand(event2);
205 }
206 virtual wxSize DoGetBestSize() const
207 {
208 wxSize sz = wxChoice::DoGetBestSize() ;
209 sz.x = POPUPWIDTH ;
210 return sz ;
211 }
212
213 private:
214 wxComboBox *m_cb;
215
216 DECLARE_EVENT_TABLE()
217 };
218
219 BEGIN_EVENT_TABLE(wxComboBoxChoice, wxChoice)
220 EVT_CHOICE(wxID_ANY, wxComboBoxChoice::OnChoice)
221 END_EVENT_TABLE()
222
223 wxComboBox::~wxComboBox()
224 {
225 // delete client objects
226 FreeData();
227
228 // delete the controls now, don't leave them alive even though they would
229 // still be eventually deleted by our parent - but it will be too late, the
230 // user code expects them to be gone now
231 if (m_text != NULL) {
232 delete m_text;
233 m_text = NULL;
234 }
235 if (m_choice != NULL) {
236 delete m_choice;
237 m_choice = NULL;
238 }
239 }
240
241
242 // ----------------------------------------------------------------------------
243 // geometry
244 // ----------------------------------------------------------------------------
245
246 wxSize wxComboBox::DoGetBestSize() const
247 {
248 #if USE_HICOMBOBOX
249 return wxControl::DoGetBestSize();
250 #else
251 wxSize size = m_choice->GetBestSize();
252
253 if ( m_text != NULL )
254 {
255 wxSize sizeText = m_text->GetBestSize();
256
257 size.x = POPUPWIDTH + sizeText.x + MARGIN;
258 }
259
260 return size;
261 #endif
262 }
263
264 void wxComboBox::DoMoveWindow(int x, int y, int width, int height) {
265 #if USE_HICOMBOBOX
266 wxControl::DoMoveWindow(x, y, width, height);
267 #else
268 height = POPUPHEIGHT;
269
270 wxControl::DoMoveWindow(x, y, width, height);
271
272 if ( m_text == NULL )
273 {
274 // we might not be fully constructed yet, therefore watch out...
275 if ( m_choice )
276 m_choice->SetSize(0, 0 , width, wxDefaultCoord);
277 }
278 else
279 {
280 wxCoord wText = width - POPUPWIDTH - MARGIN;
281 m_text->SetSize(0, 0, wText, height);
282 m_choice->SetSize(0 + wText + MARGIN, 0, POPUPWIDTH, wxDefaultCoord);
283 }
284 #endif
285 }
286
287
288
289 // ----------------------------------------------------------------------------
290 // operations forwarded to the subcontrols
291 // ----------------------------------------------------------------------------
292
293 bool wxComboBox::Enable(bool enable)
294 {
295 if ( !wxControl::Enable(enable) )
296 return false;
297
298 return true;
299 }
300
301 bool wxComboBox::Show(bool show)
302 {
303 if ( !wxControl::Show(show) )
304 return false;
305
306 return true;
307 }
308
309 void wxComboBox::SetFocus()
310 {
311 #if USE_HICOMBOBOX
312 wxControl::SetFocus();
313 #else
314 if ( m_text != NULL) {
315 m_text->SetFocus();
316 }
317 #endif
318 }
319
320
321 void wxComboBox::DelegateTextChanged( const wxString& value )
322 {
323 SetStringSelection( value );
324 }
325
326
327 void wxComboBox::DelegateChoice( const wxString& value )
328 {
329 SetStringSelection( value );
330 }
331
332
333 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
334 const wxString& value,
335 const wxPoint& pos,
336 const wxSize& size,
337 const wxArrayString& choices,
338 long style,
339 const wxValidator& validator,
340 const wxString& name)
341 {
342 wxCArrayString chs( choices );
343
344 return Create( parent, id, value, pos, size, chs.GetCount(),
345 chs.GetStrings(), style, validator, name );
346 }
347
348
349 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
350 const wxString& value,
351 const wxPoint& pos,
352 const wxSize& size,
353 int n, const wxString choices[],
354 long style,
355 const wxValidator& validator,
356 const wxString& name)
357 {
358 m_text = NULL;
359 m_choice = NULL;
360 #if USE_HICOMBOBOX
361 m_macIsUserPane = false ;
362 #endif
363 if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize, style ,
364 wxDefaultValidator, name) )
365 {
366 return false;
367 }
368 #if USE_HICOMBOBOX
369 Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
370 HIRect hiRect;
371
372 hiRect.origin.x = 20; //bounds.left;
373 hiRect.origin.y = 25; //bounds.top;
374 hiRect.size.width = 120;// bounds.right - bounds.left;
375 hiRect.size.height = 24;
376
377 //For some reason, this code causes the combo box not to be displayed at all.
378 //hiRect.origin.x = bounds.left;
379 //hiRect.origin.y = bounds.top;
380 //hiRect.size.width = bounds.right - bounds.left;
381 //hiRect.size.height = bounds.bottom - bounds.top;
382 //printf("left = %d, right = %d, top = %d, bottom = %d\n", bounds.left, bounds.right, bounds.top, bounds.bottom);
383 //printf("x = %d, y = %d, width = %d, height = %d\n", hibounds.origin.x, hibounds.origin.y, hibounds.size.width, hibounds.size.height);
384 m_peer = new wxMacControl(this) ;
385 verify_noerr( HIComboBoxCreate( &hiRect, CFSTR(""), NULL, NULL, kHIComboBoxStandardAttributes, *m_peer ) );
386
387
388 SetControl32BitMinimum( *m_peer , 0 ) ;
389 SetControl32BitMaximum( *m_peer , 100) ;
390 if ( n > 0 )
391 SetControl32BitValue( *m_peer , 1 ) ;
392
393 MacPostControlCreate(pos,size) ;
394
395 for ( int i = 0 ; i < n ; i++ )
396 {
397 DoAppend( choices[ i ] );
398 }
399
400 HIViewSetVisible( *m_peer, true );
401 SetSelection(0);
402 EventHandlerRef comboEventHandler ;
403 InstallControlEventHandler( *m_peer, GetwxMacComboBoxEventHandlerUPP(),
404 GetEventTypeCount(eventList), eventList, this,
405 (EventHandlerRef *)&comboEventHandler);
406 #else
407 m_choice = new wxComboBoxChoice(this, style );
408
409 m_choice = new wxComboBoxChoice(this, style );
410 m_choice->SetSizeHints( wxSize( POPUPWIDTH , POPUPHEIGHT ) ) ;
411
412 wxSize csize = size;
413 if ( style & wxCB_READONLY )
414 {
415 m_text = NULL;
416 }
417 else
418 {
419 m_text = new wxComboBoxText(this);
420 if ( size.y == wxDefaultCoord ) {
421 csize.y = m_text->GetSize().y ;
422 }
423 }
424
425 DoSetSize(pos.x, pos.y, csize.x, csize.y);
426
427 for ( int i = 0 ; i < n ; i++ )
428 {
429 m_choice->DoAppend( choices[ i ] );
430 }
431 SetBestSize(csize); // Needed because it is a wxControlWithItems
432 #endif
433
434 return true;
435 }
436
437 wxString wxComboBox::GetValue() const
438 {
439 #if USE_HICOMBOBOX
440 CFStringRef myString;
441 HIComboBoxCopyTextItemAtIndex( *m_peer, (CFIndex)GetSelection(), &myString );
442 return wxMacCFStringHolder( myString, m_font.GetEncoding() ).AsString();
443 #else
444 wxString result;
445
446 if ( m_text == NULL )
447 {
448 result = m_choice->GetString( m_choice->GetSelection() );
449 }
450 else
451 {
452 result = m_text->GetValue();
453 }
454
455 return result;
456 #endif
457 }
458
459 void wxComboBox::SetValue(const wxString& value)
460 {
461 #if USE_HICOMBOBOX
462
463 #else
464 int s = FindString (value);
465 if (s == wxNOT_FOUND && !HasFlag(wxCB_READONLY) )
466 {
467 m_choice->Append(value) ;
468 }
469 SetStringSelection( value ) ;
470 #endif
471 }
472
473 // Clipboard operations
474 void wxComboBox::Copy()
475 {
476 if ( m_text != NULL )
477 {
478 m_text->Copy();
479 }
480 }
481
482 void wxComboBox::Cut()
483 {
484 if ( m_text != NULL )
485 {
486 m_text->Cut();
487 }
488 }
489
490 void wxComboBox::Paste()
491 {
492 if ( m_text != NULL )
493 {
494 m_text->Paste();
495 }
496 }
497
498 void wxComboBox::SetEditable(bool editable)
499 {
500 if ( ( m_text == NULL ) && editable )
501 {
502 m_text = new wxComboBoxText( this );
503 }
504 else if ( ( m_text != NULL ) && !editable )
505 {
506 delete m_text;
507 m_text = NULL;
508 }
509
510 int currentX, currentY;
511 GetPosition( &currentX, &currentY );
512
513 int currentW, currentH;
514 GetSize( &currentW, &currentH );
515
516 DoMoveWindow( currentX, currentY, currentW, currentH );
517 }
518
519 void wxComboBox::SetInsertionPoint(long pos)
520 {
521 // TODO
522 }
523
524 void wxComboBox::SetInsertionPointEnd()
525 {
526 // TODO
527 }
528
529 long wxComboBox::GetInsertionPoint() const
530 {
531 // TODO
532 return 0;
533 }
534
535 wxTextPos wxComboBox::GetLastPosition() const
536 {
537 // TODO
538 return 0;
539 }
540
541 void wxComboBox::Replace(long from, long to, const wxString& value)
542 {
543 // TODO
544 }
545
546 void wxComboBox::Remove(long from, long to)
547 {
548 // TODO
549 }
550
551 void wxComboBox::SetSelection(long from, long to)
552 {
553 // TODO
554 }
555
556 int wxComboBox::DoAppend(const wxString& item)
557 {
558 #if USE_HICOMBOBOX
559 CFIndex outIndex;
560 HIComboBoxAppendTextItem( *m_peer, wxMacCFStringHolder( item, m_font.GetEncoding() ), &outIndex );
561 //SetControl32BitMaximum( *m_peer, GetCount() );
562 return (int) outIndex;
563 #else
564 return m_choice->DoAppend( item ) ;
565 #endif
566 }
567
568 int wxComboBox::DoInsert(const wxString& item, int pos)
569 {
570 #if USE_HICOMBOBOX
571 HIComboBoxInsertTextItemAtIndex( *m_peer, (CFIndex)pos, wxMacCFStringHolder(item, m_font.GetEncoding()) );
572
573 //SetControl32BitMaximum( *m_peer, GetCount() );
574
575 return pos;
576 #else
577 return m_choice->DoInsert( item , pos ) ;
578 #endif
579 }
580
581 void wxComboBox::DoSetItemClientData(int n, void* clientData)
582 {
583 #if USE_HICOMBOBOX
584 return; //TODO
585 #else
586 return m_choice->DoSetItemClientData( n , clientData ) ;
587 #endif
588 }
589
590 void* wxComboBox::DoGetItemClientData(int n) const
591 {
592 #if USE_HICOMBOBOX
593 return NULL; //TODO
594 #else
595 return m_choice->DoGetItemClientData( n ) ;
596 #endif
597 }
598
599 void wxComboBox::DoSetItemClientObject(int n, wxClientData* clientData)
600 {
601 #if USE_HICOMBOBOX
602 return; //TODO
603 #else
604 return m_choice->DoSetItemClientObject( n , clientData ) ;
605 #endif
606 }
607
608 wxClientData* wxComboBox::DoGetItemClientObject(int n) const
609 {
610 #if USE_HICOMBOBOX
611 return NULL;
612 #else
613 return m_choice->DoGetItemClientObject( n ) ;
614 #endif
615 }
616
617 void wxComboBox::FreeData()
618 {
619 if ( HasClientObjectData() )
620 {
621 size_t count = GetCount();
622 for ( size_t n = 0; n < count; n++ )
623 {
624 SetClientObject( n, NULL );
625 }
626 }
627 }
628
629 int wxComboBox::GetCount() const {
630 #if USE_HICOMBOBOX
631 return (int) HIComboBoxGetItemCount( *m_peer );
632 #else
633 return m_choice->GetCount() ;
634 #endif
635 }
636
637 void wxComboBox::Delete(int n)
638 {
639 #if USE_HICOMBOBOX
640 HIComboBoxRemoveItemAtIndex( *m_peer, (CFIndex)n );
641 #else
642 // force client object deletion
643 if( HasClientObjectData() )
644 SetClientObject( n, NULL );
645 m_choice->Delete( n );
646 #endif
647 }
648
649 void wxComboBox::Clear()
650 {
651 FreeData();
652 #if USE_HICOMBOBOX
653 for ( CFIndex i = GetCount() - 1 ; i >= 0 ; ++ i )
654 verify_noerr( HIComboBoxRemoveItemAtIndex( *m_peer, i ) );
655 m_peer->SetData<CFStringRef>(kHIComboBoxEditTextPart,kControlEditTextCFStringTag,CFSTR(""));
656 #else
657 m_choice->Clear();
658 #endif
659 }
660
661 int wxComboBox::GetSelection() const
662 {
663 #if USE_HICOMBOBOX
664 return FindString( GetStringSelection() ) ;
665 #else
666 return m_choice->GetSelection();
667 #endif
668 }
669
670 void wxComboBox::SetSelection(int n)
671 {
672 #if USE_HICOMBOBOX
673 SetControl32BitValue( *m_peer , n + 1 ) ;
674 #else
675 m_choice->SetSelection( n );
676
677 if ( m_text != NULL )
678 {
679 m_text->SetValue( GetString( n ) );
680 }
681 #endif
682 }
683
684 int wxComboBox::FindString(const wxString& s) const
685 {
686 #if USE_HICOMBOBOX
687 for( int i = 0 ; i < GetCount() ; i++ )
688 {
689 if ( GetString( i ).IsSameAs(s, false) )
690 return i ;
691 }
692 return wxNOT_FOUND ;
693 #else
694 return m_choice->FindString( s );
695 #endif
696 }
697
698 wxString wxComboBox::GetString(int n) const
699 {
700 #if USE_HICOMBOBOX
701 CFStringRef itemText;
702 HIComboBoxCopyTextItemAtIndex( *m_peer, (CFIndex)n, &itemText );
703 return wxMacCFStringHolder(itemText).AsString();
704 #else
705 return m_choice->GetString( n );
706 #endif
707 }
708
709 wxString wxComboBox::GetStringSelection() const
710 {
711 #if USE_HICOMBOBOX
712 return wxMacCFStringHolder(m_peer->GetData<CFStringRef>(kHIComboBoxEditTextPart,kControlEditTextCFStringTag)).AsString() ;
713 #else
714 int sel = GetSelection ();
715 if (sel > -1)
716 return wxString(this->GetString (sel));
717 else
718 return wxEmptyString;
719 #endif
720 }
721
722 void wxComboBox::SetString(int n, const wxString& s)
723 {
724 #if USE_HICOMBOBOX
725 verify_noerr ( HIComboBoxInsertTextItemAtIndex( *m_peer, (CFIndex) n,
726 wxMacCFStringHolder(s, m_font.GetEncoding()) ) );
727 verify_noerr ( HIComboBoxRemoveItemAtIndex( *m_peer, (CFIndex) n + 1 ) );
728 #else
729 m_choice->SetString( n , s ) ;
730 #endif
731 }
732
733 bool wxComboBox::IsEditable() const
734 {
735 #if USE_HICOMBOBOX
736 // TODO
737 return !HasFlag(wxCB_READONLY);
738 #else
739 return m_text != NULL && !HasFlag(wxCB_READONLY);
740 #endif
741 }
742
743 void wxComboBox::Undo()
744 {
745 #if USE_HICOMBOBOX
746 // TODO
747 #else
748 if (m_text != NULL)
749 m_text->Undo();
750 #endif
751 }
752
753 void wxComboBox::Redo()
754 {
755 #if USE_HICOMBOBOX
756 // TODO
757 #else
758 if (m_text != NULL)
759 m_text->Redo();
760 #endif
761 }
762
763 void wxComboBox::SelectAll()
764 {
765 #if USE_HICOMBOBOX
766 // TODO
767 #else
768 if (m_text != NULL)
769 m_text->SelectAll();
770 #endif
771 }
772
773 bool wxComboBox::CanCopy() const
774 {
775 #if USE_HICOMBOBOX
776 // TODO
777 return false;
778 #else
779 if (m_text != NULL)
780 return m_text->CanCopy();
781 else
782 return false;
783 #endif
784 }
785
786 bool wxComboBox::CanCut() const
787 {
788 #if USE_HICOMBOBOX
789 // TODO
790 return false;
791 #else
792 if (m_text != NULL)
793 return m_text->CanCut();
794 else
795 return false;
796 #endif
797 }
798
799 bool wxComboBox::CanPaste() const
800 {
801 #if USE_HICOMBOBOX
802 // TODO
803 return false;
804 #else
805 if (m_text != NULL)
806 return m_text->CanPaste();
807 else
808 return false;
809 #endif
810 }
811
812 bool wxComboBox::CanUndo() const
813 {
814 #if USE_HICOMBOBOX
815 // TODO
816 return false;
817 #else
818 if (m_text != NULL)
819 return m_text->CanUndo();
820 else
821 return false;
822 #endif
823 }
824
825 bool wxComboBox::CanRedo() const
826 {
827 #if USE_HICOMBOBOX
828 // TODO
829 return false;
830 #else
831 if (m_text != NULL)
832 return m_text->CanRedo();
833 else
834 return false;
835 #endif
836 }
837
838 wxInt32 wxComboBox::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
839 {
840 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId );
841 event.SetInt(GetSelection());
842 event.SetEventObject(this);
843 event.SetString(GetStringSelection());
844 ProcessCommand(event);
845 return noErr ;
846 }