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Support using GetTextExtent() with empty string to get descent in wxOSX.
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1/////////////////////////////////////////////////////////////////////////////
2// Program: wxWidgets Widgets Sample
3// Name: combobox.cpp
4// Purpose: Part of the widgets sample showing wxComboBox
5// Author: Vadim Zeitlin
6// Created: 27.03.01
7// Id: $Id$
8// Copyright: (c) 2001 Vadim Zeitlin
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20// for compilers that support precompilation, includes "wx/wx.h".
21#include "wx/wxprec.h"
22
23#ifdef __BORLANDC__
24 #pragma hdrstop
25#endif
26
27#if wxUSE_COMBOBOX
28
29// for all others, include the necessary headers
30#ifndef WX_PRECOMP
31 #include "wx/log.h"
32
33 #include "wx/bitmap.h"
34 #include "wx/button.h"
35 #include "wx/checkbox.h"
36 #include "wx/combobox.h"
37 #include "wx/radiobox.h"
38 #include "wx/statbox.h"
39 #include "wx/textctrl.h"
40#endif
41
42#include "wx/sizer.h"
43
44#include "itemcontainer.h"
45#include "widgets.h"
46#include "icons/combobox.xpm"
47
48// ----------------------------------------------------------------------------
49// constants
50// ----------------------------------------------------------------------------
51
52// control ids
53enum
54{
55 ComboPage_Reset = wxID_HIGHEST,
56 ComboPage_Popup,
57 ComboPage_Dismiss,
58 ComboPage_SetCurrent,
59 ComboPage_CurText,
60 ComboPage_InsertionPointText,
61 ComboPage_Insert,
62 ComboPage_InsertText,
63 ComboPage_Add,
64 ComboPage_AddText,
65 ComboPage_SetFirst,
66 ComboPage_SetFirstText,
67 ComboPage_AddSeveral,
68 ComboPage_AddMany,
69 ComboPage_Clear,
70 ComboPage_Change,
71 ComboPage_ChangeText,
72 ComboPage_Delete,
73 ComboPage_DeleteText,
74 ComboPage_DeleteSel,
75 ComboPage_SetValue,
76 ComboPage_SetValueText,
77 ComboPage_Combo,
78 ComboPage_ContainerTests
79};
80
81// kinds of comboboxes
82enum
83{
84 ComboKind_Default,
85 ComboKind_Simple,
86 ComboKind_DropDown
87};
88
89// ----------------------------------------------------------------------------
90// ComboboxWidgetsPage
91// ----------------------------------------------------------------------------
92
93class ComboboxWidgetsPage : public ItemContainerWidgetsPage
94{
95public:
96 ComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
97
98 virtual wxControl *GetWidget() const { return m_combobox; }
99 virtual wxTextEntryBase *GetTextEntry() const { return m_combobox; }
100 virtual wxItemContainer* GetContainer() const { return m_combobox; }
101 virtual void RecreateWidget() { CreateCombo(); }
102
103 // lazy creation of the content
104 virtual void CreateContent();
105
106protected:
107 // event handlers
108 void OnButtonReset(wxCommandEvent& event);
109 void OnButtonPopup(wxCommandEvent&) { m_combobox->Popup(); }
110 void OnButtonDismiss(wxCommandEvent&) { m_combobox->Dismiss(); }
111 void OnButtonChange(wxCommandEvent& event);
112 void OnButtonDelete(wxCommandEvent& event);
113 void OnButtonDeleteSel(wxCommandEvent& event);
114 void OnButtonClear(wxCommandEvent& event);
115 void OnButtonInsert(wxCommandEvent &event);
116 void OnButtonAdd(wxCommandEvent& event);
117 void OnButtonSetFirst(wxCommandEvent& event);
118 void OnButtonAddSeveral(wxCommandEvent& event);
119 void OnButtonAddMany(wxCommandEvent& event);
120 void OnButtonSetValue(wxCommandEvent& event);
121 void OnButtonSetCurrent(wxCommandEvent& event);
122
123 void OnDropdown(wxCommandEvent& event);
124 void OnCloseup(wxCommandEvent& event);
125 void OnComboBox(wxCommandEvent& event);
126 void OnComboText(wxCommandEvent& event);
127 void OnComboTextPasted(wxClipboardTextEvent& event);
128
129 void OnCheckOrRadioBox(wxCommandEvent& event);
130
131 void OnUpdateUIInsertionPointText(wxUpdateUIEvent& event);
132
133 void OnUpdateUIInsert(wxUpdateUIEvent& event);
134 void OnUpdateUIAddSeveral(wxUpdateUIEvent& event);
135 void OnUpdateUIClearButton(wxUpdateUIEvent& event);
136 void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
137 void OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event);
138 void OnUpdateUIResetButton(wxUpdateUIEvent& event);
139 void OnUpdateUISetCurrent(wxUpdateUIEvent& event);
140
141 // reset the combobox parameters
142 void Reset();
143
144 // (re)create the combobox
145 void CreateCombo();
146
147 // the controls
148 // ------------
149
150 // the sel mode radiobox
151 wxRadioBox *m_radioKind;
152
153 // the checkboxes for styles
154 wxCheckBox *m_chkSort,
155 *m_chkReadonly,
156 *m_chkProcessEnter;
157
158 // the combobox itself and the sizer it is in
159 wxComboBox *m_combobox;
160 wxSizer *m_sizerCombo;
161
162 // the text entries for "Add/change string" and "Delete" buttons
163 wxTextCtrl *m_textInsert,
164 *m_textAdd,
165 *m_textSetFirst,
166 *m_textChange,
167 *m_textSetValue,
168 *m_textDelete,
169 *m_textCur;
170
171private:
172 DECLARE_EVENT_TABLE()
173 DECLARE_WIDGETS_PAGE(ComboboxWidgetsPage)
174};
175
176// ----------------------------------------------------------------------------
177// event tables
178// ----------------------------------------------------------------------------
179
180BEGIN_EVENT_TABLE(ComboboxWidgetsPage, WidgetsPage)
181 EVT_BUTTON(ComboPage_Reset, ComboboxWidgetsPage::OnButtonReset)
182 EVT_BUTTON(ComboPage_Popup, ComboboxWidgetsPage::OnButtonPopup)
183 EVT_BUTTON(ComboPage_Dismiss, ComboboxWidgetsPage::OnButtonDismiss)
184 EVT_BUTTON(ComboPage_Change, ComboboxWidgetsPage::OnButtonChange)
185 EVT_BUTTON(ComboPage_Delete, ComboboxWidgetsPage::OnButtonDelete)
186 EVT_BUTTON(ComboPage_DeleteSel, ComboboxWidgetsPage::OnButtonDeleteSel)
187 EVT_BUTTON(ComboPage_Clear, ComboboxWidgetsPage::OnButtonClear)
188 EVT_BUTTON(ComboPage_Insert, ComboboxWidgetsPage::OnButtonInsert)
189 EVT_BUTTON(ComboPage_Add, ComboboxWidgetsPage::OnButtonAdd)
190 EVT_BUTTON(ComboPage_SetFirst, ComboboxWidgetsPage::OnButtonSetFirst)
191 EVT_BUTTON(ComboPage_AddSeveral, ComboboxWidgetsPage::OnButtonAddSeveral)
192 EVT_BUTTON(ComboPage_AddMany, ComboboxWidgetsPage::OnButtonAddMany)
193 EVT_BUTTON(ComboPage_SetValue, ComboboxWidgetsPage::OnButtonSetValue)
194 EVT_BUTTON(ComboPage_SetCurrent, ComboboxWidgetsPage::OnButtonSetCurrent)
195 EVT_BUTTON(ComboPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer)
196
197 EVT_TEXT_ENTER(ComboPage_InsertText, ComboboxWidgetsPage::OnButtonInsert)
198 EVT_TEXT_ENTER(ComboPage_AddText, ComboboxWidgetsPage::OnButtonAdd)
199 EVT_TEXT_ENTER(ComboPage_DeleteText, ComboboxWidgetsPage::OnButtonDelete)
200
201 EVT_UPDATE_UI(ComboPage_InsertionPointText, ComboboxWidgetsPage::OnUpdateUIInsertionPointText)
202
203 EVT_UPDATE_UI(ComboPage_Reset, ComboboxWidgetsPage::OnUpdateUIResetButton)
204 EVT_UPDATE_UI(ComboPage_Insert, ComboboxWidgetsPage::OnUpdateUIInsert)
205 EVT_UPDATE_UI(ComboPage_AddSeveral, ComboboxWidgetsPage::OnUpdateUIAddSeveral)
206 EVT_UPDATE_UI(ComboPage_Clear, ComboboxWidgetsPage::OnUpdateUIClearButton)
207 EVT_UPDATE_UI(ComboPage_DeleteText, ComboboxWidgetsPage::OnUpdateUIClearButton)
208 EVT_UPDATE_UI(ComboPage_Delete, ComboboxWidgetsPage::OnUpdateUIDeleteButton)
209 EVT_UPDATE_UI(ComboPage_Change, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
210 EVT_UPDATE_UI(ComboPage_ChangeText, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
211 EVT_UPDATE_UI(ComboPage_DeleteSel, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
212 EVT_UPDATE_UI(ComboPage_SetCurrent, ComboboxWidgetsPage::OnUpdateUISetCurrent)
213
214 EVT_COMBOBOX(ComboPage_Combo, ComboboxWidgetsPage::OnComboBox)
215 EVT_COMBOBOX_DROPDOWN(ComboPage_Combo, ComboboxWidgetsPage::OnDropdown)
216 EVT_COMBOBOX_CLOSEUP(ComboPage_Combo, ComboboxWidgetsPage::OnCloseup)
217 EVT_TEXT(ComboPage_Combo, ComboboxWidgetsPage::OnComboText)
218 EVT_TEXT_ENTER(ComboPage_Combo, ComboboxWidgetsPage::OnComboText)
219 EVT_TEXT_PASTE(ComboPage_Combo, ComboboxWidgetsPage::OnComboTextPasted)
220
221 EVT_CHECKBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox)
222 EVT_RADIOBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox)
223END_EVENT_TABLE()
224
225// ============================================================================
226// implementation
227// ============================================================================
228
229#if defined(__WXUNIVERSAL__)
230 #define FAMILY_CTRLS UNIVERSAL_CTRLS
231#else
232 #define FAMILY_CTRLS NATIVE_CTRLS
233#endif
234
235IMPLEMENT_WIDGETS_PAGE(ComboboxWidgetsPage, wxT("Combobox"),
236 FAMILY_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
237 );
238
239ComboboxWidgetsPage::ComboboxWidgetsPage(WidgetsBookCtrl *book,
240 wxImageList *imaglist)
241 : ItemContainerWidgetsPage(book, imaglist, combobox_xpm)
242{
243 // init everything
244 m_chkSort =
245 m_chkReadonly =
246 m_chkProcessEnter = (wxCheckBox *)NULL;
247
248 m_combobox = (wxComboBox *)NULL;
249 m_sizerCombo = (wxSizer *)NULL;
250}
251
252void ComboboxWidgetsPage::CreateContent()
253{
254 /*
255 What we create here is a frame having 3 panes: style pane is the
256 leftmost one, in the middle the pane with buttons allowing to perform
257 miscellaneous combobox operations and the pane containing the combobox
258 itself to the right
259 */
260 wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
261
262 // upper left pane
263
264 // should be in sync with ComboKind_XXX values
265 static const wxString kinds[] =
266 {
267 wxT("default"),
268 wxT("simple"),
269 wxT("drop down"),
270 };
271
272 m_radioKind = new wxRadioBox(this, wxID_ANY, wxT("Combobox &kind:"),
273 wxDefaultPosition, wxDefaultSize,
274 WXSIZEOF(kinds), kinds,
275 1, wxRA_SPECIFY_COLS);
276
277 wxSizer *sizerLeftTop = new wxStaticBoxSizer(wxVERTICAL, this, "&Set style");
278
279 m_chkSort = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Sort items"));
280 m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Read only"));
281 m_chkProcessEnter = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("Process &Enter"));
282
283 sizerLeftTop->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
284 sizerLeftTop->Add(m_radioKind, 0, wxGROW | wxALL, 5);
285
286 wxButton *btn = new wxButton(this, ComboPage_Reset, wxT("&Reset"));
287 sizerLeftTop->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
288
289 // lower left pane
290 wxSizer *sizerLeftBottom = new wxStaticBoxSizer(wxVERTICAL, this, "&Popup");
291 sizerLeftBottom->Add(new wxButton(this, ComboPage_Popup, "&Show"),
292 wxSizerFlags().Border().Centre());
293 sizerLeftBottom->Add(new wxButton(this, ComboPage_Dismiss, "&Hide"),
294 wxSizerFlags().Border().Centre());
295
296
297 wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
298 sizerLeft->Add(sizerLeftTop);
299 sizerLeft->AddSpacer(10);
300 sizerLeft->Add(sizerLeftBottom, wxSizerFlags().Expand());
301
302 // middle pane
303 wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
304 wxT("&Change combobox contents"));
305 wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
306
307 wxSizer *sizerRow;
308
309 sizerRow = CreateSizerWithTextAndButton(ComboPage_SetCurrent,
310 wxT("Current &selection"),
311 ComboPage_CurText,
312 &m_textCur);
313
314 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
315
316 wxTextCtrl *text;
317 sizerRow = CreateSizerWithTextAndLabel(wxT("Insertion Point"),
318 ComboPage_InsertionPointText,
319 &text);
320 text->SetEditable(false);
321
322 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
323
324 sizerRow = CreateSizerWithTextAndButton(ComboPage_Insert,
325 wxT("&Insert this string"),
326 ComboPage_InsertText,
327 &m_textInsert);
328 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
329
330 sizerRow = CreateSizerWithTextAndButton(ComboPage_Add,
331 wxT("&Add this string"),
332 ComboPage_AddText,
333 &m_textAdd);
334 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
335
336 sizerRow = CreateSizerWithTextAndButton(ComboPage_SetFirst,
337 wxT("Change &1st string"),
338 ComboPage_SetFirstText,
339 &m_textSetFirst);
340 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
341
342 btn = new wxButton(this, ComboPage_AddSeveral, wxT("&Append a few strings"));
343 sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
344
345 btn = new wxButton(this, ComboPage_AddMany, wxT("Append &many strings"));
346 sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
347
348 sizerRow = CreateSizerWithTextAndButton(ComboPage_Change,
349 wxT("C&hange current"),
350 ComboPage_ChangeText,
351 &m_textChange);
352 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
353
354 sizerRow = CreateSizerWithTextAndButton(ComboPage_Delete,
355 wxT("&Delete this item"),
356 ComboPage_DeleteText,
357 &m_textDelete);
358 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
359
360 btn = new wxButton(this, ComboPage_DeleteSel, wxT("Delete &selection"));
361 sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
362
363 btn = new wxButton(this, ComboPage_Clear, wxT("&Clear"));
364 sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
365
366 sizerRow = CreateSizerWithTextAndButton(ComboPage_SetValue,
367 wxT("SetValue"),
368 ComboPage_SetValueText,
369 &m_textSetValue);
370 sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
371
372 btn = new wxButton(this, ComboPage_ContainerTests, wxT("Run &tests"));
373 sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
374
375
376
377 // right pane
378 wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
379 m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString,
380 wxDefaultPosition, wxDefaultSize,
381 0, NULL,
382 0);
383 sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
384 sizerRight->SetMinSize(150, 0);
385 m_sizerCombo = sizerRight; // save it to modify it later
386
387 // the 3 panes panes compose the window
388 sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
389 sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
390 sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
391
392 // final initializations
393 Reset();
394
395 SetSizer(sizerTop);
396}
397
398// ----------------------------------------------------------------------------
399// operations
400// ----------------------------------------------------------------------------
401
402void ComboboxWidgetsPage::Reset()
403{
404 m_chkSort->SetValue(false);
405 m_chkReadonly->SetValue(false);
406 m_chkProcessEnter->SetValue(false);
407}
408
409void ComboboxWidgetsPage::CreateCombo()
410{
411 int flags = ms_defaultFlags;
412
413 if ( m_chkSort->GetValue() )
414 flags |= wxCB_SORT;
415 if ( m_chkReadonly->GetValue() )
416 flags |= wxCB_READONLY;
417 if ( m_chkProcessEnter->GetValue() )
418 flags |= wxTE_PROCESS_ENTER;
419
420
421 switch ( m_radioKind->GetSelection() )
422 {
423 default:
424 wxFAIL_MSG( wxT("unknown combo kind") );
425 // fall through
426
427 case ComboKind_Default:
428 break;
429
430 case ComboKind_Simple:
431 flags |= wxCB_SIMPLE;
432 break;
433
434 case ComboKind_DropDown:
435 flags = wxCB_DROPDOWN;
436 break;
437 }
438
439 wxArrayString items;
440 if ( m_combobox )
441 {
442 unsigned int count = m_combobox->GetCount();
443 for ( unsigned int n = 0; n < count; n++ )
444 {
445 items.Add(m_combobox->GetString(n));
446 }
447
448 m_sizerCombo->Detach( m_combobox );
449 delete m_combobox;
450 }
451
452 m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString,
453 wxDefaultPosition, wxDefaultSize,
454 0, NULL,
455 flags);
456
457 unsigned int count = items.GetCount();
458 for ( unsigned int n = 0; n < count; n++ )
459 {
460 m_combobox->Append(items[n]);
461 }
462
463 m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
464 m_sizerCombo->Layout();
465}
466
467// ----------------------------------------------------------------------------
468// event handlers
469// ----------------------------------------------------------------------------
470
471void ComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
472{
473 Reset();
474
475 CreateCombo();
476}
477
478void ComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
479{
480 int sel = m_combobox->GetSelection();
481 if ( sel != wxNOT_FOUND )
482 {
483 m_combobox->SetString(sel, m_textChange->GetValue());
484 }
485}
486
487void ComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
488{
489 unsigned long n;
490 if ( !m_textDelete->GetValue().ToULong(&n) ||
491 (n >= m_combobox->GetCount()) )
492 {
493 return;
494 }
495
496 m_combobox->Delete(n);
497}
498
499void ComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
500{
501 int sel = m_combobox->GetSelection();
502 if ( sel != wxNOT_FOUND )
503 {
504 m_combobox->Delete(sel);
505 }
506}
507
508void ComboboxWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
509{
510 wxString value = m_textSetValue->GetValue();
511 m_combobox->SetValue( value );
512}
513
514void ComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
515{
516 m_combobox->Clear();
517}
518
519void ComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
520{
521 static unsigned int s_item = 0;
522
523 wxString s = m_textInsert->GetValue();
524 if ( !m_textInsert->IsModified() )
525 {
526 // update the default string
527 m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
528 }
529
530 if (m_combobox->GetSelection() >= 0)
531 m_combobox->Insert(s, m_combobox->GetSelection());
532}
533
534void ComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
535{
536 static unsigned int s_item = 0;
537
538 wxString s = m_textAdd->GetValue();
539 if ( !m_textAdd->IsModified() )
540 {
541 // update the default string
542 m_textAdd->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
543 }
544
545 m_combobox->Append(s);
546}
547
548void ComboboxWidgetsPage::OnButtonSetFirst(wxCommandEvent& WXUNUSED(event))
549{
550 if ( m_combobox->IsListEmpty() )
551 {
552 wxLogWarning("No string to change.");
553 return;
554 }
555
556 m_combobox->SetString(0, m_textSetFirst->GetValue());
557}
558
559void ComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
560{
561 // "many" means 1000 here
562 for ( unsigned int n = 0; n < 1000; n++ )
563 {
564 m_combobox->Append(wxString::Format(wxT("item #%u"), n));
565 }
566}
567
568void ComboboxWidgetsPage::OnButtonSetCurrent(wxCommandEvent& WXUNUSED(event))
569{
570 long n;
571 if ( !m_textCur->GetValue().ToLong(&n) )
572 return;
573
574 m_combobox->SetSelection(n);
575}
576
577void ComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
578{
579 m_combobox->Append(wxT("First"));
580 m_combobox->Append(wxT("another one"));
581 m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one"));
582}
583
584void ComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
585{
586 if (m_combobox)
587 event.SetText( wxString::Format(wxT("%ld"), m_combobox->GetInsertionPoint()) );
588}
589
590void ComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
591{
592 event.Enable( m_chkSort->GetValue() ||
593 m_chkReadonly->GetValue() ||
594 m_chkProcessEnter->GetValue() );
595}
596
597void ComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
598{
599 if (m_combobox)
600 {
601 bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
602 (m_combobox->GetSelection() >= 0);
603
604 event.Enable(enable);
605 }
606}
607
608void ComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
609{
610 if (m_combobox)
611 {
612 unsigned long n;
613 event.Enable(m_textDelete->GetValue().ToULong(&n) &&
614 (n < (unsigned)m_combobox->GetCount()));
615 }
616}
617
618void ComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
619{
620 if (m_combobox)
621 event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
622}
623
624void ComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
625{
626 if (m_combobox)
627 event.Enable(m_combobox->GetCount() != 0);
628}
629
630void ComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
631{
632 if (m_combobox)
633 event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
634}
635
636void ComboboxWidgetsPage::OnUpdateUISetCurrent(wxUpdateUIEvent& event)
637{
638 long n;
639 event.Enable( m_textCur->GetValue().ToLong(&n) &&
640 (n == wxNOT_FOUND ||
641 (n >= 0 && (unsigned)n < m_combobox->GetCount())) );
642}
643
644void ComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
645{
646 if (!m_combobox)
647 return;
648
649 wxString s = event.GetString();
650
651 wxASSERT_MSG( s == m_combobox->GetValue(),
652 wxT("event and combobox values should be the same") );
653
654 if (event.GetEventType() == wxEVT_TEXT_ENTER)
655 {
656 wxLogMessage(wxT("Combobox enter pressed (now '%s')"), s.c_str());
657 }
658 else
659 {
660 wxLogMessage(wxT("Combobox text changed (now '%s')"), s.c_str());
661 }
662}
663
664void ComboboxWidgetsPage::OnComboTextPasted(wxClipboardTextEvent& event)
665{
666 wxLogMessage("Text pasted from clipboard.");
667 event.Skip();
668}
669
670void ComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
671{
672 long sel = event.GetInt();
673 const wxString selstr = wxString::Format(wxT("%ld"), sel);
674 m_textDelete->SetValue(selstr);
675 m_textCur->SetValue(selstr);
676
677 wxLogMessage(wxT("Combobox item %ld selected"), sel);
678
679 wxLogMessage(wxT("Combobox GetValue(): %s"), m_combobox->GetValue().c_str() );
680
681 if ( event.GetString() != m_combobox->GetValue() )
682 {
683 wxLogMessage("ERROR: Event has different string \"%s\"",
684 event.GetString());
685 }
686}
687
688void ComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
689{
690 CreateCombo();
691}
692
693void ComboboxWidgetsPage::OnDropdown(wxCommandEvent& WXUNUSED(event))
694{
695 wxLogMessage(wxT("Combobox dropped down"));
696}
697
698void ComboboxWidgetsPage::OnCloseup(wxCommandEvent& WXUNUSED(event))
699{
700 wxLogMessage(wxT("Combobox closed up"));
701}
702
703#endif // wxUSE_COMBOBOX
wxWidgets (Impactor)