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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/univ/combobox.cpp | |
3 | // Purpose: wxComboBox implementation | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 15.12.00 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) | |
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_COMBOBOX | |
27 | ||
28 | #ifndef WX_PRECOMP | |
29 | #include "wx/log.h" | |
30 | ||
31 | #include "wx/button.h" | |
32 | #include "wx/combobox.h" | |
33 | #include "wx/listbox.h" | |
34 | #include "wx/textctrl.h" | |
35 | #include "wx/bmpbuttn.h" | |
36 | ||
37 | #include "wx/validate.h" | |
38 | #endif | |
39 | ||
40 | #include "wx/tooltip.h" | |
41 | #include "wx/combo.h" | |
42 | ||
43 | #include "wx/univ/renderer.h" | |
44 | #include "wx/univ/inphand.h" | |
45 | #include "wx/univ/theme.h" | |
46 | ||
47 | // ---------------------------------------------------------------------------- | |
48 | // wxStdComboBoxInputHandler: allows the user to open/close the combo from kbd | |
49 | // ---------------------------------------------------------------------------- | |
50 | ||
51 | class WXDLLEXPORT wxStdComboBoxInputHandler : public wxStdInputHandler | |
52 | { | |
53 | public: | |
54 | wxStdComboBoxInputHandler(wxInputHandler *inphand); | |
55 | ||
56 | virtual bool HandleKey(wxInputConsumer *consumer, | |
57 | const wxKeyEvent& event, | |
58 | bool pressed); | |
59 | }; | |
60 | ||
61 | // ---------------------------------------------------------------------------- | |
62 | // wxComboListBox is a listbox modified to be used as a popup window in a | |
63 | // combobox | |
64 | // ---------------------------------------------------------------------------- | |
65 | ||
66 | class wxComboListBox : public wxListBox, public wxComboPopup | |
67 | { | |
68 | public: | |
69 | // ctor and dtor | |
70 | wxComboListBox(); | |
71 | virtual ~wxComboListBox(); | |
72 | ||
73 | // implement wxComboPopup methods | |
74 | virtual bool Create(wxWindow* parent); | |
75 | virtual void SetStringValue(const wxString& s); | |
76 | virtual wxString GetStringValue() const; | |
77 | virtual wxWindow *GetControl() { return this; } | |
78 | virtual void OnPopup(); | |
79 | virtual wxSize GetAdjustedSize(int minWidth, int prefHeight, int maxHeight); | |
80 | ||
81 | // fix virtual function hiding | |
82 | virtual void SetSelection(int n) { DoSetSelection(n, true); } | |
83 | void SetSelection(int n, bool select) { DoSetSelection(n, select); } | |
84 | ||
85 | // used to process wxUniv actions | |
86 | bool PerformAction(const wxControlAction& action, | |
87 | long numArg, | |
88 | const wxString& strArg); | |
89 | ||
90 | protected: | |
91 | // set m_clicked value from here | |
92 | void OnLeftUp(wxMouseEvent& event); | |
93 | ||
94 | private: | |
95 | DECLARE_EVENT_TABLE() | |
96 | }; | |
97 | ||
98 | // ---------------------------------------------------------------------------- | |
99 | // event tables and such | |
100 | // ---------------------------------------------------------------------------- | |
101 | ||
102 | BEGIN_EVENT_TABLE(wxComboListBox, wxListBox) | |
103 | EVT_LEFT_UP(wxComboListBox::OnLeftUp) | |
104 | END_EVENT_TABLE() | |
105 | ||
106 | IMPLEMENT_DYNAMIC_CLASS2(wxComboBox, wxControl, wxComboCtrl) | |
107 | ||
108 | // ============================================================================ | |
109 | // implementation | |
110 | // ============================================================================ | |
111 | ||
112 | // ---------------------------------------------------------------------------- | |
113 | // wxComboListBox | |
114 | // ---------------------------------------------------------------------------- | |
115 | ||
116 | wxComboListBox::wxComboListBox() : wxListBox(), wxComboPopup() | |
117 | { | |
118 | } | |
119 | ||
120 | bool wxComboListBox::Create(wxWindow* parent) | |
121 | { | |
122 | if ( !wxListBox::Create(parent, wxID_ANY, | |
123 | wxDefaultPosition, wxDefaultSize, | |
124 | 0, NULL, | |
125 | wxBORDER_SIMPLE | wxLB_INT_HEIGHT | | |
126 | m_combo->GetWindowStyle() & wxCB_SORT ? wxLB_SORT : 0) ) | |
127 | return false; | |
128 | ||
129 | // we don't react to the mouse events outside the window at all | |
130 | StopAutoScrolling(); | |
131 | ||
132 | return true; | |
133 | } | |
134 | ||
135 | wxComboListBox::~wxComboListBox() | |
136 | { | |
137 | } | |
138 | ||
139 | wxString wxComboListBox::GetStringValue() const | |
140 | { | |
141 | return wxListBox::GetStringSelection(); | |
142 | } | |
143 | ||
144 | void wxComboListBox::SetStringValue(const wxString& value) | |
145 | { | |
146 | if ( !value.empty() ) | |
147 | { | |
148 | if (FindString(value) != wxNOT_FOUND) | |
149 | wxListBox::SetStringSelection(value); | |
150 | } | |
151 | else | |
152 | wxListBox::SetSelection(-1); | |
153 | } | |
154 | ||
155 | void wxComboListBox::OnPopup() | |
156 | { | |
157 | } | |
158 | ||
159 | bool wxComboListBox::PerformAction(const wxControlAction& action, | |
160 | long numArg, | |
161 | const wxString& strArg) | |
162 | ||
163 | { | |
164 | if ( action == wxACTION_LISTBOX_FIND ) | |
165 | { | |
166 | // we don't let the listbox handle this as instead of just using the | |
167 | // single key presses, as usual, we use the text ctrl value as prefix | |
168 | // and this is done by wxComboCtrl itself | |
169 | return true; | |
170 | } | |
171 | ||
172 | return wxListBox::PerformAction(action, numArg, strArg); | |
173 | } | |
174 | ||
175 | void wxComboListBox::OnLeftUp(wxMouseEvent& event) | |
176 | { | |
177 | // we should dismiss the combo now | |
178 | // first update the combo and close the listbox | |
179 | Dismiss(); | |
180 | m_combo->SetValue(wxListBox::GetStringSelection()); | |
181 | ||
182 | // next let the user code have the event | |
183 | wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId()); | |
184 | evt.SetInt(wxListBox::GetSelection()); | |
185 | evt.SetEventObject(m_combo); | |
186 | m_combo->ProcessEvent(evt); | |
187 | ||
188 | event.Skip(); | |
189 | } | |
190 | ||
191 | wxSize wxComboListBox::GetAdjustedSize(int minWidth, | |
192 | int WXUNUSED(prefHeight), | |
193 | int maxHeight) | |
194 | { | |
195 | wxSize bestSize = wxListBox::GetBestSize(); | |
196 | return wxSize(wxMax(bestSize.x,minWidth), | |
197 | wxMin(bestSize.y,maxHeight)); | |
198 | } | |
199 | ||
200 | // ---------------------------------------------------------------------------- | |
201 | // wxComboBox | |
202 | // ---------------------------------------------------------------------------- | |
203 | ||
204 | void wxComboBox::Init() | |
205 | { | |
206 | m_lbox = (wxListBox *)NULL; | |
207 | } | |
208 | ||
209 | wxComboBox::wxComboBox(wxWindow *parent, | |
210 | wxWindowID id, | |
211 | const wxString& value, | |
212 | const wxPoint& pos, | |
213 | const wxSize& size, | |
214 | const wxArrayString& choices, | |
215 | long style, | |
216 | const wxValidator& validator, | |
217 | const wxString& name) | |
218 | { | |
219 | Init(); | |
220 | ||
221 | Create(parent, id, value, pos, size, choices, style, validator, name); | |
222 | } | |
223 | ||
224 | bool wxComboBox::Create(wxWindow *parent, | |
225 | wxWindowID id, | |
226 | const wxString& value, | |
227 | const wxPoint& pos, | |
228 | const wxSize& size, | |
229 | const wxArrayString& choices, | |
230 | long style, | |
231 | const wxValidator& validator, | |
232 | const wxString& name) | |
233 | { | |
234 | wxCArrayString chs(choices); | |
235 | ||
236 | return Create(parent, id, value, pos, size, chs.GetCount(), | |
237 | chs.GetStrings(), style, validator, name); | |
238 | } | |
239 | ||
240 | bool wxComboBox::Create(wxWindow *parent, | |
241 | wxWindowID id, | |
242 | const wxString& value, | |
243 | const wxPoint& pos, | |
244 | const wxSize& size, | |
245 | int n, | |
246 | const wxString choices[], | |
247 | long style, | |
248 | const wxValidator& validator, | |
249 | const wxString& name) | |
250 | { | |
251 | if ( !wxComboCtrl::Create(parent, id, value, pos, size, style, | |
252 | validator, name) ) | |
253 | { | |
254 | return false; | |
255 | } | |
256 | ||
257 | wxComboListBox *combolbox = new wxComboListBox(); | |
258 | SetPopupControl(combolbox); | |
259 | ||
260 | m_lbox = combolbox; | |
261 | m_lbox->Set(n, choices); | |
262 | ||
263 | return true; | |
264 | } | |
265 | ||
266 | wxComboBox::~wxComboBox() | |
267 | { | |
268 | } | |
269 | ||
270 | // ---------------------------------------------------------------------------- | |
271 | // wxComboBox methods forwarded to wxTextCtrl | |
272 | // ---------------------------------------------------------------------------- | |
273 | ||
274 | wxString wxComboBox::GetValue() const | |
275 | { | |
276 | return wxComboCtrl::GetValue(); | |
277 | } | |
278 | ||
279 | void wxComboBox::SetValue(const wxString& value) | |
280 | { | |
281 | wxComboCtrl::SetValue(value); | |
282 | } | |
283 | ||
284 | void wxComboBox::Copy() | |
285 | { | |
286 | if ( GetTextCtrl() ) GetTextCtrl()->Copy(); | |
287 | } | |
288 | ||
289 | void wxComboBox::Cut() | |
290 | { | |
291 | if ( GetTextCtrl() ) GetTextCtrl()->Cut(); | |
292 | } | |
293 | ||
294 | void wxComboBox::Paste() | |
295 | { | |
296 | if ( GetTextCtrl() ) GetTextCtrl()->Paste(); | |
297 | } | |
298 | ||
299 | void wxComboBox::SetInsertionPoint(long pos) | |
300 | { | |
301 | if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPoint(pos); | |
302 | } | |
303 | ||
304 | void wxComboBox::SetInsertionPointEnd() | |
305 | { | |
306 | if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPointEnd(); | |
307 | } | |
308 | ||
309 | long wxComboBox::GetInsertionPoint() const | |
310 | { | |
311 | if ( GetTextCtrl() ) | |
312 | return GetTextCtrl()->GetInsertionPoint(); | |
313 | return -1; | |
314 | } | |
315 | ||
316 | wxTextPos wxComboBox::GetLastPosition() const | |
317 | { | |
318 | if ( GetTextCtrl() ) | |
319 | return GetTextCtrl()->GetLastPosition(); | |
320 | return -1; | |
321 | } | |
322 | ||
323 | void wxComboBox::Replace(long from, long to, const wxString& value) | |
324 | { | |
325 | if ( GetTextCtrl() ) GetTextCtrl()->Replace(from, to, value); | |
326 | } | |
327 | ||
328 | void wxComboBox::Remove(long from, long to) | |
329 | { | |
330 | if ( GetTextCtrl() ) GetTextCtrl()->Remove(from, to); | |
331 | } | |
332 | ||
333 | void wxComboBox::SetSelection(long from, long to) | |
334 | { | |
335 | if ( GetTextCtrl() ) GetTextCtrl()->SetSelection(from, to); | |
336 | } | |
337 | ||
338 | void wxComboBox::SetEditable(bool editable) | |
339 | { | |
340 | if ( GetTextCtrl() ) GetTextCtrl()->SetEditable(editable); | |
341 | } | |
342 | ||
343 | // ---------------------------------------------------------------------------- | |
344 | // wxComboBox methods forwarded to wxListBox | |
345 | // ---------------------------------------------------------------------------- | |
346 | ||
347 | void wxComboBox::Clear() | |
348 | { | |
349 | GetLBox()->Clear(); | |
350 | if ( GetTextCtrl() ) GetTextCtrl()->SetValue(wxEmptyString); | |
351 | } | |
352 | ||
353 | void wxComboBox::Delete(unsigned int n) | |
354 | { | |
355 | wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::Delete") ); | |
356 | ||
357 | if (GetSelection() == (int)n) | |
358 | if ( GetTextCtrl() ) GetTextCtrl()->SetValue(wxEmptyString); | |
359 | ||
360 | GetLBox()->Delete(n); | |
361 | } | |
362 | ||
363 | unsigned int wxComboBox::GetCount() const | |
364 | { | |
365 | return GetLBox()->GetCount(); | |
366 | } | |
367 | ||
368 | wxString wxComboBox::GetString(unsigned int n) const | |
369 | { | |
370 | wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxComboBox::GetString") ); | |
371 | ||
372 | return GetLBox()->GetString(n); | |
373 | } | |
374 | ||
375 | void wxComboBox::SetString(unsigned int n, const wxString& s) | |
376 | { | |
377 | wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::SetString") ); | |
378 | ||
379 | GetLBox()->SetString(n, s); | |
380 | } | |
381 | ||
382 | int wxComboBox::FindString(const wxString& s, bool bCase) const | |
383 | { | |
384 | return GetLBox()->FindString(s, bCase); | |
385 | } | |
386 | ||
387 | void wxComboBox::SetSelection(int n) | |
388 | { | |
389 | wxCHECK_RET( (n == wxNOT_FOUND || IsValid(n)), _T("invalid index in wxComboBox::Select") ); | |
390 | ||
391 | GetLBox()->SetSelection(n); | |
392 | if ( GetTextCtrl() ) | |
393 | GetTextCtrl()->SetValue(GetLBox()->GetString(n)); | |
394 | } | |
395 | ||
396 | int wxComboBox::GetSelection() const | |
397 | { | |
398 | #if 1 // FIXME:: What is the correct behavior? | |
399 | // if the current value isn't one of the listbox strings, return -1 | |
400 | return GetLBox()->GetSelection(); | |
401 | #else | |
402 | // Why oh why is this done this way? | |
403 | // It is not because the value displayed in the text can be found | |
404 | // in the list that it is the item that is selected! | |
405 | return FindString(if ( GetTextCtrl() ) GetTextCtrl()->GetValue()); | |
406 | #endif | |
407 | } | |
408 | ||
409 | int wxComboBox::DoAppend(const wxString& item) | |
410 | { | |
411 | return GetLBox()->Append(item); | |
412 | } | |
413 | ||
414 | int wxComboBox::DoInsert(const wxString& item, unsigned int pos) | |
415 | { | |
416 | wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list")); | |
417 | wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index")); | |
418 | ||
419 | if (pos == GetCount()) | |
420 | return DoAppend(item); | |
421 | ||
422 | GetLBox()->Insert(item, pos); | |
423 | return pos; | |
424 | } | |
425 | ||
426 | void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData) | |
427 | { | |
428 | GetLBox()->SetClientData(n, clientData); | |
429 | } | |
430 | ||
431 | void *wxComboBox::DoGetItemClientData(unsigned int n) const | |
432 | { | |
433 | return GetLBox()->GetClientData(n); | |
434 | } | |
435 | ||
436 | void wxComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData) | |
437 | { | |
438 | GetLBox()->SetClientObject(n, clientData); | |
439 | } | |
440 | ||
441 | wxClientData* wxComboBox::DoGetItemClientObject(unsigned int n) const | |
442 | { | |
443 | return GetLBox()->GetClientObject(n); | |
444 | } | |
445 | ||
446 | bool wxComboBox::IsEditable() const | |
447 | { | |
448 | return GetTextCtrl() != NULL && (!HasFlag(wxCB_READONLY) || GetTextCtrl()->IsEditable() ); | |
449 | } | |
450 | ||
451 | void wxComboBox::Undo() | |
452 | { | |
453 | if (IsEditable()) | |
454 | if ( GetTextCtrl() ) GetTextCtrl()->Undo(); | |
455 | } | |
456 | ||
457 | void wxComboBox::Redo() | |
458 | { | |
459 | if (IsEditable()) | |
460 | if ( GetTextCtrl() ) GetTextCtrl()->Redo(); | |
461 | } | |
462 | ||
463 | void wxComboBox::SelectAll() | |
464 | { | |
465 | if ( GetTextCtrl() ) GetTextCtrl()->SelectAll(); | |
466 | } | |
467 | ||
468 | bool wxComboBox::CanCopy() const | |
469 | { | |
470 | if (GetTextCtrl() != NULL) | |
471 | return GetTextCtrl()->CanCopy(); | |
472 | else | |
473 | return false; | |
474 | } | |
475 | ||
476 | bool wxComboBox::CanCut() const | |
477 | { | |
478 | if (GetTextCtrl() != NULL) | |
479 | return GetTextCtrl()->CanCut(); | |
480 | else | |
481 | return false; | |
482 | } | |
483 | ||
484 | bool wxComboBox::CanPaste() const | |
485 | { | |
486 | if (IsEditable()) | |
487 | return GetTextCtrl()->CanPaste(); | |
488 | else | |
489 | return false; | |
490 | } | |
491 | ||
492 | bool wxComboBox::CanUndo() const | |
493 | { | |
494 | if (IsEditable()) | |
495 | return GetTextCtrl()->CanUndo(); | |
496 | else | |
497 | return false; | |
498 | } | |
499 | ||
500 | bool wxComboBox::CanRedo() const | |
501 | { | |
502 | if (IsEditable()) | |
503 | return GetTextCtrl()->CanRedo(); | |
504 | else | |
505 | return false; | |
506 | } | |
507 | ||
508 | ||
509 | // ---------------------------------------------------------------------------- | |
510 | // wxStdComboBoxInputHandler | |
511 | // ---------------------------------------------------------------------------- | |
512 | ||
513 | wxStdComboBoxInputHandler::wxStdComboBoxInputHandler(wxInputHandler *inphand) | |
514 | : wxStdInputHandler(inphand) | |
515 | { | |
516 | } | |
517 | ||
518 | bool wxStdComboBoxInputHandler::HandleKey(wxInputConsumer *consumer, | |
519 | const wxKeyEvent& event, | |
520 | bool pressed) | |
521 | { | |
522 | if ( pressed ) | |
523 | { | |
524 | wxControlAction action; | |
525 | switch ( event.GetKeyCode() ) | |
526 | { | |
527 | case WXK_DOWN: | |
528 | action = wxACTION_COMBOBOX_POPUP; | |
529 | break; | |
530 | ||
531 | case WXK_ESCAPE: | |
532 | action = wxACTION_COMBOBOX_DISMISS; | |
533 | break; | |
534 | } | |
535 | ||
536 | if ( !action.IsEmpty() ) | |
537 | { | |
538 | consumer->PerformAction(action); | |
539 | ||
540 | return true; | |
541 | } | |
542 | } | |
543 | ||
544 | return wxStdInputHandler::HandleKey(consumer, event, pressed); | |
545 | } | |
546 | ||
547 | /* static */ | |
548 | wxInputHandler *wxComboBox::GetStdInputHandler(wxInputHandler *handlerDef) | |
549 | { | |
550 | static wxStdComboBoxInputHandler s_handler(handlerDef); | |
551 | ||
552 | return &s_handler; | |
553 | } | |
554 | ||
555 | #endif // wxUSE_COMBOBOX |