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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 | #ifdef __GNUG__ | |
13 | #pragma implementation "combobox.h" | |
14 | #endif | |
15 | ||
16 | #include "wx/combobox.h" | |
17 | #include "wx/button.h" | |
18 | #include "wx/menu.h" | |
19 | #include "wx/mac/uma.h" | |
20 | ||
21 | #if !USE_SHARED_LIBRARY | |
22 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) | |
23 | #endif | |
24 | ||
25 | // composite combobox implementation by Dan "Bud" Keith bud@otsys.com | |
26 | ||
27 | ||
28 | static int nextPopUpMenuId = 1000 ; | |
29 | MenuHandle NewUniqueMenu() | |
30 | { | |
31 | MenuHandle handle = NewMenu( nextPopUpMenuId , "\pMenu" ) ; | |
32 | nextPopUpMenuId++ ; | |
33 | return handle ; | |
34 | } | |
35 | ||
36 | ||
37 | // ---------------------------------------------------------------------------- | |
38 | // constants | |
39 | // ---------------------------------------------------------------------------- | |
40 | ||
41 | // the margin between the text control and the choice | |
42 | static const wxCoord MARGIN = 2; | |
43 | static const int POPUPWIDTH = 18; | |
44 | static const int POPUPHEIGHT = 23; | |
45 | ||
46 | ||
47 | // ---------------------------------------------------------------------------- | |
48 | // wxComboBoxText: text control forwards events to combobox | |
49 | // ---------------------------------------------------------------------------- | |
50 | ||
51 | class wxComboBoxText : public wxTextCtrl | |
52 | { | |
53 | public: | |
54 | wxComboBoxText( wxComboBox * cb ) | |
55 | : wxTextCtrl( cb , 1 ) | |
56 | { | |
57 | m_cb = cb; | |
58 | } | |
59 | ||
60 | protected: | |
61 | void OnChar( wxKeyEvent& event ) | |
62 | { | |
63 | if ( event.GetKeyCode() == WXK_RETURN ) | |
64 | { | |
65 | wxString value = GetValue(); | |
66 | ||
67 | if ( m_cb->GetCount() == 0 ) | |
68 | { | |
69 | // make Enter generate "selected" event if there is only one item | |
70 | // in the combobox - without it, it's impossible to select it at | |
71 | // all! | |
72 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); | |
73 | event.SetInt( 0 ); | |
74 | event.SetString( value ); | |
75 | event.SetEventObject( m_cb ); | |
76 | m_cb->GetEventHandler()->ProcessEvent( event ); | |
77 | } | |
78 | else | |
79 | { | |
80 | // add the item to the list if it's not there yet | |
81 | if ( m_cb->FindString(value) == wxNOT_FOUND ) | |
82 | { | |
83 | m_cb->Append(value); | |
84 | m_cb->SetStringSelection(value); | |
85 | ||
86 | // and generate the selected event for it | |
87 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); | |
88 | event.SetInt( m_cb->GetCount() - 1 ); | |
89 | event.SetString( value ); | |
90 | event.SetEventObject( m_cb ); | |
91 | m_cb->GetEventHandler()->ProcessEvent( event ); | |
92 | } | |
93 | ||
94 | // This will invoke the dialog default action, such | |
95 | // as the clicking the default button. | |
96 | ||
97 | wxWindow *parent = GetParent(); | |
98 | while( parent && !parent->IsTopLevel() && parent->GetDefaultItem() == NULL ) { | |
99 | parent = parent->GetParent() ; | |
100 | } | |
101 | if ( parent && parent->GetDefaultItem() ) | |
102 | { | |
103 | wxButton *def = wxDynamicCast(parent->GetDefaultItem(), | |
104 | wxButton); | |
105 | if ( def && def->IsEnabled() ) | |
106 | { | |
107 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() ); | |
108 | event.SetEventObject(def); | |
109 | def->Command(event); | |
110 | return ; | |
111 | } | |
112 | } | |
113 | ||
114 | return; | |
115 | } | |
116 | } | |
117 | ||
118 | event.Skip(); | |
119 | } | |
120 | ||
121 | private: | |
122 | wxComboBox *m_cb; | |
123 | ||
124 | DECLARE_EVENT_TABLE() | |
125 | }; | |
126 | ||
127 | BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl) | |
128 | EVT_CHAR( wxComboBoxText::OnChar) | |
129 | END_EVENT_TABLE() | |
130 | ||
131 | class wxComboBoxChoice : public wxChoice | |
132 | { | |
133 | public: | |
134 | wxComboBoxChoice(wxComboBox *cb, int style) | |
135 | : wxChoice( cb , 1 ) | |
136 | { | |
137 | m_cb = cb; | |
138 | } | |
139 | ||
140 | protected: | |
141 | void OnChoice( wxCommandEvent& e ) | |
142 | { | |
143 | wxString s = e.GetString(); | |
144 | ||
145 | m_cb->DelegateChoice( s ); | |
146 | wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); | |
147 | event2.SetInt(m_cb->GetSelection()); | |
148 | event2.SetEventObject(m_cb); | |
149 | event2.SetString(m_cb->GetStringSelection()); | |
150 | m_cb->ProcessCommand(event2); | |
151 | } | |
152 | ||
153 | private: | |
154 | wxComboBox *m_cb; | |
155 | ||
156 | DECLARE_EVENT_TABLE() | |
157 | }; | |
158 | ||
159 | BEGIN_EVENT_TABLE(wxComboBoxChoice, wxChoice) | |
160 | EVT_CHOICE(-1, wxComboBoxChoice::OnChoice) | |
161 | END_EVENT_TABLE() | |
162 | ||
163 | wxComboBox::~wxComboBox() | |
164 | { | |
165 | // delete client objects | |
166 | FreeData(); | |
167 | ||
168 | // delete the controls now, don't leave them alive even though they would | |
169 | // still be eventually deleted by our parent - but it will be too late, the | |
170 | // user code expects them to be gone now | |
171 | if (m_text != NULL) { | |
172 | delete m_text; | |
173 | m_text = NULL; | |
174 | } | |
175 | if (m_choice != NULL) { | |
176 | delete m_choice; | |
177 | m_choice = NULL; | |
178 | } | |
179 | } | |
180 | ||
181 | ||
182 | // ---------------------------------------------------------------------------- | |
183 | // geometry | |
184 | // ---------------------------------------------------------------------------- | |
185 | ||
186 | wxSize wxComboBox::DoGetBestSize() const | |
187 | { | |
188 | wxSize size = m_choice->GetBestSize(); | |
189 | ||
190 | if ( m_text != NULL ) | |
191 | { | |
192 | wxSize sizeText = m_text->GetBestSize(); | |
193 | ||
194 | size.x = POPUPWIDTH + sizeText.x + MARGIN; | |
195 | } | |
196 | ||
197 | return size; | |
198 | } | |
199 | ||
200 | void wxComboBox::DoMoveWindow(int x, int y, int width, int height) { | |
201 | height = POPUPHEIGHT; | |
202 | ||
203 | wxControl::DoMoveWindow(x, y, width, height); | |
204 | ||
205 | if ( m_text == NULL ) | |
206 | { | |
207 | m_choice->SetSize(0, 0 , width, -1); | |
208 | } | |
209 | else | |
210 | { | |
211 | wxCoord wText = width - POPUPWIDTH - MARGIN; | |
212 | m_text->SetSize(0, 0, wText, height); | |
213 | m_choice->SetSize(0 + wText + MARGIN, 0, POPUPWIDTH, -1); | |
214 | } | |
215 | } | |
216 | ||
217 | ||
218 | ||
219 | // ---------------------------------------------------------------------------- | |
220 | // operations forwarded to the subcontrols | |
221 | // ---------------------------------------------------------------------------- | |
222 | ||
223 | bool wxComboBox::Enable(bool enable) | |
224 | { | |
225 | if ( !wxControl::Enable(enable) ) | |
226 | return false; | |
227 | ||
228 | return true; | |
229 | } | |
230 | ||
231 | bool wxComboBox::Show(bool show) | |
232 | { | |
233 | if ( !wxControl::Show(show) ) | |
234 | return false; | |
235 | ||
236 | return true; | |
237 | } | |
238 | ||
239 | void wxComboBox::SetFocus() | |
240 | { | |
241 | if ( m_text != NULL) { | |
242 | m_text->SetFocus(); | |
243 | } | |
244 | } | |
245 | ||
246 | ||
247 | void wxComboBox::DelegateTextChanged( const wxString& value ) | |
248 | { | |
249 | SetStringSelection( value ); | |
250 | } | |
251 | ||
252 | ||
253 | void wxComboBox::DelegateChoice( const wxString& value ) | |
254 | { | |
255 | SetStringSelection( value ); | |
256 | } | |
257 | ||
258 | ||
259 | bool wxComboBox::Create(wxWindow *parent, wxWindowID id, | |
260 | const wxString& value, | |
261 | const wxPoint& pos, | |
262 | const wxSize& size, | |
263 | const wxArrayString& choices, | |
264 | long style, | |
265 | const wxValidator& validator, | |
266 | const wxString& name) | |
267 | { | |
268 | wxCArrayString chs( choices ); | |
269 | ||
270 | return Create( parent, id, value, pos, size, chs.GetCount(), | |
271 | chs.GetStrings(), style, validator, name ); | |
272 | } | |
273 | ||
274 | ||
275 | bool wxComboBox::Create(wxWindow *parent, wxWindowID id, | |
276 | const wxString& value, | |
277 | const wxPoint& pos, | |
278 | const wxSize& size, | |
279 | int n, const wxString choices[], | |
280 | long style, | |
281 | const wxValidator& validator, | |
282 | const wxString& name) | |
283 | { | |
284 | if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize, style , | |
285 | wxDefaultValidator, name) ) | |
286 | { | |
287 | return false; | |
288 | } | |
289 | ||
290 | m_choice = new wxComboBoxChoice(this, style ); | |
291 | ||
292 | wxSize csize = size; | |
293 | if ( style & wxCB_READONLY ) | |
294 | { | |
295 | m_text = NULL; | |
296 | } | |
297 | else | |
298 | { | |
299 | m_text = new wxComboBoxText(this); | |
300 | if ( size.y == -1 ) { | |
301 | csize.y = m_text->GetSize().y ; | |
302 | } | |
303 | } | |
304 | ||
305 | DoSetSize(pos.x, pos.y, csize.x, csize.y); | |
306 | ||
307 | for ( int i = 0 ; i < n ; i++ ) | |
308 | { | |
309 | m_choice->DoAppend( choices[ i ] ); | |
310 | } | |
311 | ||
312 | return true; | |
313 | } | |
314 | ||
315 | wxString wxComboBox::GetValue() const | |
316 | { | |
317 | wxString result; | |
318 | ||
319 | if ( m_text == NULL ) | |
320 | { | |
321 | result = m_choice->GetString( m_choice->GetSelection() ); | |
322 | } | |
323 | else | |
324 | { | |
325 | result = m_text->GetValue(); | |
326 | } | |
327 | ||
328 | return result; | |
329 | } | |
330 | ||
331 | void wxComboBox::SetValue(const wxString& value) | |
332 | { | |
333 | int s = FindString (value); | |
334 | if (s == wxNOT_FOUND && !HasFlag(wxCB_READONLY) ) | |
335 | { | |
336 | m_choice->Append(value) ; | |
337 | } | |
338 | SetStringSelection( value ) ; | |
339 | } | |
340 | ||
341 | // Clipboard operations | |
342 | void wxComboBox::Copy() | |
343 | { | |
344 | if ( m_text != NULL ) | |
345 | { | |
346 | m_text->Copy(); | |
347 | } | |
348 | } | |
349 | ||
350 | void wxComboBox::Cut() | |
351 | { | |
352 | if ( m_text != NULL ) | |
353 | { | |
354 | m_text->Cut(); | |
355 | } | |
356 | } | |
357 | ||
358 | void wxComboBox::Paste() | |
359 | { | |
360 | if ( m_text != NULL ) | |
361 | { | |
362 | m_text->Paste(); | |
363 | } | |
364 | } | |
365 | ||
366 | void wxComboBox::SetEditable(bool editable) | |
367 | { | |
368 | if ( ( m_text == NULL ) && editable ) | |
369 | { | |
370 | m_text = new wxComboBoxText( this ); | |
371 | } | |
372 | else if ( ( m_text != NULL ) && !editable ) | |
373 | { | |
374 | delete m_text; | |
375 | m_text = NULL; | |
376 | } | |
377 | ||
378 | int currentX, currentY; | |
379 | GetPosition( ¤tX, ¤tY ); | |
380 | ||
381 | int currentW, currentH; | |
382 | GetSize( ¤tW, ¤tH ); | |
383 | ||
384 | DoMoveWindow( currentX, currentY, currentW, currentH ); | |
385 | } | |
386 | ||
387 | void wxComboBox::SetInsertionPoint(long pos) | |
388 | { | |
389 | // TODO | |
390 | } | |
391 | ||
392 | void wxComboBox::SetInsertionPointEnd() | |
393 | { | |
394 | // TODO | |
395 | } | |
396 | ||
397 | long wxComboBox::GetInsertionPoint() const | |
398 | { | |
399 | // TODO | |
400 | return 0; | |
401 | } | |
402 | ||
403 | wxTextPos wxComboBox::GetLastPosition() const | |
404 | { | |
405 | // TODO | |
406 | return 0; | |
407 | } | |
408 | ||
409 | void wxComboBox::Replace(long from, long to, const wxString& value) | |
410 | { | |
411 | // TODO | |
412 | } | |
413 | ||
414 | void wxComboBox::Remove(long from, long to) | |
415 | { | |
416 | // TODO | |
417 | } | |
418 | ||
419 | void wxComboBox::SetSelection(long from, long to) | |
420 | { | |
421 | // TODO | |
422 | } | |
423 | ||
424 | int wxComboBox::DoAppend(const wxString& item) | |
425 | { | |
426 | return m_choice->DoAppend( item ) ; | |
427 | } | |
428 | ||
429 | int wxComboBox::DoInsert(const wxString& item, int pos) | |
430 | { | |
431 | return m_choice->DoInsert( item , pos ) ; | |
432 | } | |
433 | ||
434 | void wxComboBox::DoSetItemClientData(int n, void* clientData) | |
435 | { | |
436 | return m_choice->DoSetItemClientData( n , clientData ) ; | |
437 | } | |
438 | ||
439 | void* wxComboBox::DoGetItemClientData(int n) const | |
440 | { | |
441 | return m_choice->DoGetItemClientData( n ) ; | |
442 | } | |
443 | ||
444 | void wxComboBox::DoSetItemClientObject(int n, wxClientData* clientData) | |
445 | { | |
446 | return m_choice->DoSetItemClientObject( n , clientData ) ; | |
447 | } | |
448 | ||
449 | wxClientData* wxComboBox::DoGetItemClientObject(int n) const | |
450 | { | |
451 | return m_choice->DoGetItemClientObject( n ) ; | |
452 | } | |
453 | ||
454 | void wxComboBox::FreeData() | |
455 | { | |
456 | if ( HasClientObjectData() ) | |
457 | { | |
458 | size_t count = GetCount(); | |
459 | for ( size_t n = 0; n < count; n++ ) | |
460 | { | |
461 | SetClientObject( n, NULL ); | |
462 | } | |
463 | } | |
464 | } | |
465 | ||
466 | void wxComboBox::Delete(int n) | |
467 | { | |
468 | // force client object deletion | |
469 | if( HasClientObjectData() ) | |
470 | SetClientObject( n, NULL ); | |
471 | m_choice->Delete( n ); | |
472 | } | |
473 | ||
474 | void wxComboBox::Clear() | |
475 | { | |
476 | FreeData(); | |
477 | m_choice->Clear(); | |
478 | } | |
479 | ||
480 | int wxComboBox::GetSelection() const | |
481 | { | |
482 | return m_choice->GetSelection(); | |
483 | } | |
484 | ||
485 | void wxComboBox::SetSelection(int n) | |
486 | { | |
487 | m_choice->SetSelection( n ); | |
488 | ||
489 | if ( m_text != NULL ) | |
490 | { | |
491 | m_text->SetValue( GetString( n ) ); | |
492 | } | |
493 | } | |
494 | ||
495 | int wxComboBox::FindString(const wxString& s) const | |
496 | { | |
497 | return m_choice->FindString( s ); | |
498 | } | |
499 | ||
500 | wxString wxComboBox::GetString(int n) const | |
501 | { | |
502 | return m_choice->GetString( n ); | |
503 | } | |
504 | ||
505 | wxString wxComboBox::GetStringSelection() const | |
506 | { | |
507 | int sel = GetSelection (); | |
508 | if (sel > -1) | |
509 | return wxString(this->GetString (sel)); | |
510 | else | |
511 | return wxEmptyString; | |
512 | } | |
513 | ||
514 | void wxComboBox::SetString(int n, const wxString& s) | |
515 | { | |
516 | m_choice->SetString( n , s ) ; | |
517 | } | |
518 | ||
519 | bool wxComboBox::IsEditable() const | |
520 | { | |
521 | return m_text != NULL && !HasFlag(wxCB_READONLY); | |
522 | } | |
523 | ||
524 | void wxComboBox::Undo() | |
525 | { | |
526 | if (m_text != NULL) | |
527 | m_text->Undo(); | |
528 | } | |
529 | ||
530 | void wxComboBox::Redo() | |
531 | { | |
532 | if (m_text != NULL) | |
533 | m_text->Redo(); | |
534 | } | |
535 | ||
536 | void wxComboBox::SelectAll() | |
537 | { | |
538 | if (m_text != NULL) | |
539 | m_text->SelectAll(); | |
540 | } | |
541 | ||
542 | bool wxComboBox::CanCopy() const | |
543 | { | |
544 | if (m_text != NULL) | |
545 | return m_text->CanCopy(); | |
546 | else | |
547 | return false; | |
548 | } | |
549 | ||
550 | bool wxComboBox::CanCut() const | |
551 | { | |
552 | if (m_text != NULL) | |
553 | return m_text->CanCut(); | |
554 | else | |
555 | return false; | |
556 | } | |
557 | ||
558 | bool wxComboBox::CanPaste() const | |
559 | { | |
560 | if (m_text != NULL) | |
561 | return m_text->CanPaste(); | |
562 | else | |
563 | return false; | |
564 | } | |
565 | ||
566 | bool wxComboBox::CanUndo() const | |
567 | { | |
568 | if (m_text != NULL) | |
569 | return m_text->CanUndo(); | |
570 | else | |
571 | return false; | |
572 | } | |
573 | ||
574 | bool wxComboBox::CanRedo() const | |
575 | { | |
576 | if (m_text != NULL) | |
577 | return m_text->CanRedo(); | |
578 | else | |
579 | return false; | |
580 | } | |
581 | ||
582 | void wxComboBox::MacHandleControlClick( WXWidget WXUNUSED(control) , wxInt16 WXUNUSED(controlpart) , bool WXUNUSED(mouseStillDown)) | |
583 | { | |
584 | wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId ); | |
585 | event.SetInt(GetSelection()); | |
586 | event.SetEventObject(this); | |
587 | event.SetString(GetStringSelection()); | |
588 | ProcessCommand(event); | |
589 | } | |
590 |