]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/generic/odcombo.cpp | |
3 | // Purpose: wxOwnerDrawnComboBox, wxVListBoxComboPopup | |
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_ODCOMBOBOX | |
27 | ||
28 | #include "wx/odcombo.h" | |
29 | ||
30 | #ifndef WX_PRECOMP | |
31 | #include "wx/log.h" | |
32 | #include "wx/combobox.h" | |
33 | #include "wx/dcclient.h" | |
34 | #include "wx/settings.h" | |
35 | #include "wx/dialog.h" | |
36 | #include "wx/textctrl.h" | |
37 | #endif | |
38 | ||
39 | #include "wx/combo.h" | |
40 | ||
41 | // ============================================================================ | |
42 | // implementation | |
43 | // ============================================================================ | |
44 | ||
45 | // time in milliseconds before partial completion buffer drops | |
46 | #define wxODCB_PARTIAL_COMPLETION_TIME 1000 | |
47 | ||
48 | // ---------------------------------------------------------------------------- | |
49 | // wxVListBoxComboPopup is a wxVListBox customized to act as a popup control | |
50 | // | |
51 | // ---------------------------------------------------------------------------- | |
52 | ||
53 | ||
54 | BEGIN_EVENT_TABLE(wxVListBoxComboPopup, wxVListBox) | |
55 | EVT_MOTION(wxVListBoxComboPopup::OnMouseMove) | |
56 | EVT_KEY_DOWN(wxVListBoxComboPopup::OnKey) | |
57 | EVT_CHAR(wxVListBoxComboPopup::OnChar) | |
58 | EVT_LEFT_UP(wxVListBoxComboPopup::OnLeftClick) | |
59 | END_EVENT_TABLE() | |
60 | ||
61 | ||
62 | void wxVListBoxComboPopup::Init() | |
63 | { | |
64 | m_widestWidth = 0; | |
65 | m_widestItem = -1; | |
66 | m_widthsDirty = false; | |
67 | m_findWidest = false; | |
68 | m_itemHeight = 0; | |
69 | m_value = -1; | |
70 | m_itemHover = -1; | |
71 | m_clientDataItemsType = wxClientData_None; | |
72 | m_partialCompletionString = wxEmptyString; | |
73 | } | |
74 | ||
75 | bool wxVListBoxComboPopup::Create(wxWindow* parent) | |
76 | { | |
77 | if ( !wxVListBox::Create(parent, | |
78 | wxID_ANY, | |
79 | wxDefaultPosition, | |
80 | wxDefaultSize, | |
81 | wxBORDER_SIMPLE | wxLB_INT_HEIGHT | wxWANTS_CHARS) ) | |
82 | return false; | |
83 | ||
84 | m_useFont = m_combo->GetFont(); | |
85 | ||
86 | wxVListBox::SetItemCount(m_strings.GetCount()); | |
87 | ||
88 | // TODO: Move this to SetFont | |
89 | m_itemHeight = GetCharHeight() + 0; | |
90 | ||
91 | return true; | |
92 | } | |
93 | ||
94 | wxVListBoxComboPopup::~wxVListBoxComboPopup() | |
95 | { | |
96 | Clear(); | |
97 | } | |
98 | ||
99 | void wxVListBoxComboPopup::SetFocus() | |
100 | { | |
101 | // Suppress SetFocus() warning by simply not calling it. This combo popup | |
102 | // has already been designed with the assumption that SetFocus() may not | |
103 | // do anything useful, so it really doesn't need to be called. | |
104 | #ifdef __WXMSW__ | |
105 | // | |
106 | #else | |
107 | wxVListBox::SetFocus(); | |
108 | #endif | |
109 | } | |
110 | ||
111 | bool wxVListBoxComboPopup::LazyCreate() | |
112 | { | |
113 | // NB: There is a bug with wxVListBox that can be avoided by creating | |
114 | // it later (bug causes empty space to be shown if initial selection | |
115 | // is at the end of a list longer than the control can show at once). | |
116 | return true; | |
117 | } | |
118 | ||
119 | // paint the control itself | |
120 | void wxVListBoxComboPopup::PaintComboControl( wxDC& dc, const wxRect& rect ) | |
121 | { | |
122 | if ( !(m_combo->GetWindowStyle() & wxODCB_STD_CONTROL_PAINT) ) | |
123 | { | |
124 | int flags = wxODCB_PAINTING_CONTROL; | |
125 | ||
126 | if ( m_combo->ShouldDrawFocus() ) | |
127 | flags |= wxODCB_PAINTING_SELECTED; | |
128 | ||
129 | OnDrawBg(dc, rect, m_value, flags); | |
130 | ||
131 | if ( m_value >= 0 ) | |
132 | { | |
133 | OnDrawItem(dc,rect,m_value,flags); | |
134 | return; | |
135 | } | |
136 | } | |
137 | ||
138 | wxComboPopup::PaintComboControl(dc,rect); | |
139 | } | |
140 | ||
141 | void wxVListBoxComboPopup::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const | |
142 | { | |
143 | // TODO: Maybe this code could be moved to wxVListBox::OnPaint? | |
144 | dc.SetFont(m_useFont); | |
145 | ||
146 | int flags = 0; | |
147 | ||
148 | // Set correct text colour for selected items | |
149 | if ( wxVListBox::GetSelection() == (int) n ) | |
150 | { | |
151 | dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) ); | |
152 | flags |= wxODCB_PAINTING_SELECTED; | |
153 | } | |
154 | else | |
155 | { | |
156 | dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) ); | |
157 | } | |
158 | ||
159 | OnDrawItem(dc,rect,(int)n,flags); | |
160 | } | |
161 | ||
162 | wxCoord wxVListBoxComboPopup::OnMeasureItem(size_t n) const | |
163 | { | |
164 | wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo; | |
165 | ||
166 | wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)), | |
167 | wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") ); | |
168 | ||
169 | wxCoord h = combo->OnMeasureItem(n); | |
170 | if ( h < 0 ) | |
171 | h = m_itemHeight; | |
172 | return h; | |
173 | } | |
174 | ||
175 | wxCoord wxVListBoxComboPopup::OnMeasureItemWidth(size_t n) const | |
176 | { | |
177 | wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo; | |
178 | ||
179 | wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)), | |
180 | wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") ); | |
181 | ||
182 | return combo->OnMeasureItemWidth(n); | |
183 | } | |
184 | ||
185 | void wxVListBoxComboPopup::OnDrawBg( wxDC& dc, | |
186 | const wxRect& rect, | |
187 | int item, | |
188 | int flags ) const | |
189 | { | |
190 | wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo; | |
191 | ||
192 | wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)), | |
193 | wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") ); | |
194 | ||
195 | if ( IsCurrent((size_t)item) && !(flags & wxODCB_PAINTING_CONTROL) ) | |
196 | flags |= wxODCB_PAINTING_SELECTED; | |
197 | ||
198 | combo->OnDrawBackground(dc,rect,item,flags); | |
199 | } | |
200 | ||
201 | void wxVListBoxComboPopup::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const | |
202 | { | |
203 | OnDrawBg(dc,rect,(int)n,0); | |
204 | } | |
205 | ||
206 | // This is called from wxVListBoxComboPopup::OnDrawItem, with text colour and font prepared | |
207 | void wxVListBoxComboPopup::OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags ) const | |
208 | { | |
209 | wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo; | |
210 | ||
211 | wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)), | |
212 | wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") ); | |
213 | ||
214 | combo->OnDrawItem(dc,rect,item,flags); | |
215 | } | |
216 | ||
217 | void wxVListBoxComboPopup::DismissWithEvent() | |
218 | { | |
219 | StopPartialCompletion(); | |
220 | ||
221 | int selection = wxVListBox::GetSelection(); | |
222 | ||
223 | Dismiss(); | |
224 | ||
225 | if ( selection != wxNOT_FOUND ) | |
226 | m_stringValue = m_strings[selection]; | |
227 | else | |
228 | m_stringValue = wxEmptyString; | |
229 | ||
230 | if ( m_stringValue != m_combo->GetValue() ) | |
231 | m_combo->SetValueByUser(m_stringValue); | |
232 | ||
233 | m_value = selection; | |
234 | ||
235 | SendComboBoxEvent(selection); | |
236 | } | |
237 | ||
238 | void wxVListBoxComboPopup::SendComboBoxEvent( int selection ) | |
239 | { | |
240 | wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId()); | |
241 | ||
242 | evt.SetEventObject(m_combo); | |
243 | ||
244 | evt.SetInt(selection); | |
245 | ||
246 | // Set client data, if any | |
247 | if ( selection >= 0 && (int)m_clientDatas.GetCount() > selection ) | |
248 | { | |
249 | void* clientData = m_clientDatas[selection]; | |
250 | if ( m_clientDataItemsType == wxClientData_Object ) | |
251 | evt.SetClientObject((wxClientData*)clientData); | |
252 | else | |
253 | evt.SetClientData(clientData); | |
254 | } | |
255 | ||
256 | m_combo->GetEventHandler()->AddPendingEvent(evt); | |
257 | } | |
258 | ||
259 | // returns true if key was consumed | |
260 | bool wxVListBoxComboPopup::HandleKey( int keycode, bool saturate, wxChar keychar ) | |
261 | { | |
262 | const int itemCount = GetCount(); | |
263 | ||
264 | // keys do nothing in the empty control and returning immediately avoids | |
265 | // using invalid indices below | |
266 | if ( !itemCount ) | |
267 | return false; | |
268 | ||
269 | int value = m_value; | |
270 | int comboStyle = m_combo->GetWindowStyle(); | |
271 | ||
272 | if ( keychar > 0 ) | |
273 | { | |
274 | // we have character equivalent of the keycode; filter out these that | |
275 | // are not printable characters | |
276 | if ( !wxIsprint(keychar) ) | |
277 | keychar = 0; | |
278 | } | |
279 | ||
280 | if ( keycode == WXK_DOWN || keycode == WXK_NUMPAD_DOWN || keycode == WXK_RIGHT ) | |
281 | { | |
282 | value++; | |
283 | StopPartialCompletion(); | |
284 | } | |
285 | else if ( keycode == WXK_UP || keycode == WXK_NUMPAD_UP || keycode == WXK_LEFT ) | |
286 | { | |
287 | value--; | |
288 | StopPartialCompletion(); | |
289 | } | |
290 | else if ( keycode == WXK_PAGEDOWN || keycode == WXK_NUMPAD_PAGEDOWN ) | |
291 | { | |
292 | value+=10; | |
293 | StopPartialCompletion(); | |
294 | } | |
295 | else if ( keycode == WXK_PAGEUP || keycode == WXK_NUMPAD_PAGEUP ) | |
296 | { | |
297 | value-=10; | |
298 | StopPartialCompletion(); | |
299 | } | |
300 | else if ( keycode == WXK_HOME || keycode == WXK_NUMPAD_HOME ) | |
301 | { | |
302 | value=0; | |
303 | StopPartialCompletion(); | |
304 | } | |
305 | else if ( keycode == WXK_END || keycode == WXK_NUMPAD_END ) | |
306 | { | |
307 | value=itemCount-1; | |
308 | StopPartialCompletion(); | |
309 | } | |
310 | else if ( keychar && (comboStyle & wxCB_READONLY) ) | |
311 | { | |
312 | // Try partial completion | |
313 | ||
314 | // find the new partial completion string | |
315 | #if wxUSE_TIMER | |
316 | if (m_partialCompletionTimer.IsRunning()) | |
317 | m_partialCompletionString+=wxString(keychar); | |
318 | else | |
319 | #endif // wxUSE_TIMER | |
320 | m_partialCompletionString=wxString(keychar); | |
321 | ||
322 | // now search through the values to see if this is found | |
323 | int found = -1; | |
324 | unsigned int length=m_partialCompletionString.length(); | |
325 | int i; | |
326 | for (i=0; i<itemCount; i++) | |
327 | { | |
328 | wxString item=GetString(i); | |
329 | if (( item.length() >= length) && (! m_partialCompletionString.CmpNoCase(item.Left(length)))) | |
330 | { | |
331 | found=i; | |
332 | break; | |
333 | } | |
334 | } | |
335 | ||
336 | if (found<0) | |
337 | { | |
338 | StopPartialCompletion(); | |
339 | ::wxBell(); | |
340 | return true; // to stop the first value being set | |
341 | } | |
342 | else | |
343 | { | |
344 | value=i; | |
345 | #if wxUSE_TIMER | |
346 | m_partialCompletionTimer.Start(wxODCB_PARTIAL_COMPLETION_TIME, true); | |
347 | #endif // wxUSE_TIMER | |
348 | } | |
349 | } | |
350 | else | |
351 | return false; | |
352 | ||
353 | if ( saturate ) | |
354 | { | |
355 | if ( value >= itemCount ) | |
356 | value = itemCount - 1; | |
357 | else if ( value < 0 ) | |
358 | value = 0; | |
359 | } | |
360 | else | |
361 | { | |
362 | if ( value >= itemCount ) | |
363 | value -= itemCount; | |
364 | else if ( value < 0 ) | |
365 | value += itemCount; | |
366 | } | |
367 | ||
368 | if ( value == m_value ) | |
369 | // Even if value was same, don't skip the event | |
370 | // (good for consistency) | |
371 | return true; | |
372 | ||
373 | if ( value >= 0 ) | |
374 | m_combo->ChangeValue(m_strings[value]); | |
375 | ||
376 | // The m_combo->SetValue() call above sets m_value to the index of this | |
377 | // string. But if there are more identical string, the index is of the | |
378 | // first occurence, which may be wrong, so set the index explicitly here, | |
379 | // _after_ the SetValue() call. | |
380 | m_value = value; | |
381 | ||
382 | SendComboBoxEvent(m_value); | |
383 | ||
384 | return true; | |
385 | } | |
386 | ||
387 | // stop partial completion | |
388 | void wxVListBoxComboPopup::StopPartialCompletion() | |
389 | { | |
390 | m_partialCompletionString = wxEmptyString; | |
391 | #if wxUSE_TIMER | |
392 | m_partialCompletionTimer.Stop(); | |
393 | #endif // wxUSE_TIMER | |
394 | } | |
395 | ||
396 | void wxVListBoxComboPopup::OnComboDoubleClick() | |
397 | { | |
398 | // Cycle on dclick (disable saturation to allow true cycling). | |
399 | if ( !::wxGetKeyState(WXK_SHIFT) ) | |
400 | HandleKey(WXK_DOWN,false); | |
401 | else | |
402 | HandleKey(WXK_UP,false); | |
403 | } | |
404 | ||
405 | void wxVListBoxComboPopup::OnComboKeyEvent( wxKeyEvent& event ) | |
406 | { | |
407 | // Saturated key movement on | |
408 | if ( !HandleKey(event.GetKeyCode(), true) ) | |
409 | event.Skip(); | |
410 | } | |
411 | ||
412 | void wxVListBoxComboPopup::OnComboCharEvent( wxKeyEvent& event ) | |
413 | { | |
414 | // unlike in OnComboKeyEvent, wxEVT_CHAR contains meaningful | |
415 | // printable character information, so pass it | |
416 | #if wxUSE_UNICODE | |
417 | const wxChar charcode = event.GetUnicodeKey(); | |
418 | #else | |
419 | const wxChar charcode = (wxChar)event.GetKeyCode(); | |
420 | #endif | |
421 | ||
422 | if ( !HandleKey(event.GetKeyCode(), true, charcode) ) | |
423 | event.Skip(); | |
424 | } | |
425 | ||
426 | void wxVListBoxComboPopup::OnPopup() | |
427 | { | |
428 | // *must* set value after size is set (this is because of a vlbox bug) | |
429 | wxVListBox::SetSelection(m_value); | |
430 | } | |
431 | ||
432 | void wxVListBoxComboPopup::OnMouseMove(wxMouseEvent& event) | |
433 | { | |
434 | event.Skip(); | |
435 | ||
436 | // Move selection to cursor if it is inside the popup | |
437 | ||
438 | int y = event.GetPosition().y; | |
439 | int fromBottom = GetClientSize().y - y; | |
440 | ||
441 | // Since in any case we need to find out if the last item is only | |
442 | // partially visible, we might just as well replicate the HitTest | |
443 | // loop here. | |
444 | const size_t lineMax = GetVisibleEnd(); | |
445 | for ( size_t line = GetVisibleBegin(); line < lineMax; line++ ) | |
446 | { | |
447 | y -= OnGetRowHeight(line); | |
448 | if ( y < 0 ) | |
449 | { | |
450 | // Only change selection if item is fully visible | |
451 | if ( (y + fromBottom) >= 0 ) | |
452 | { | |
453 | wxVListBox::SetSelection((int)line); | |
454 | return; | |
455 | } | |
456 | } | |
457 | } | |
458 | } | |
459 | ||
460 | void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event)) | |
461 | { | |
462 | DismissWithEvent(); | |
463 | } | |
464 | ||
465 | void wxVListBoxComboPopup::OnKey(wxKeyEvent& event) | |
466 | { | |
467 | // Hide popup if certain key or key combination was pressed | |
468 | if ( m_combo->IsKeyPopupToggle(event) ) | |
469 | { | |
470 | StopPartialCompletion(); | |
471 | Dismiss(); | |
472 | } | |
473 | else if ( event.AltDown() ) | |
474 | { | |
475 | // On both wxGTK and wxMSW, pressing Alt down seems to | |
476 | // completely freeze things in popup (ie. arrow keys and | |
477 | // enter won't work). | |
478 | return; | |
479 | } | |
480 | // Select item if ENTER is pressed | |
481 | else if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER ) | |
482 | { | |
483 | DismissWithEvent(); | |
484 | } | |
485 | else | |
486 | { | |
487 | // completion is handled in OnChar() below | |
488 | event.Skip(); | |
489 | } | |
490 | } | |
491 | ||
492 | void wxVListBoxComboPopup::OnChar(wxKeyEvent& event) | |
493 | { | |
494 | if ( m_combo->GetWindowStyle() & wxCB_READONLY ) | |
495 | { | |
496 | // Process partial completion key codes here, but not the arrow keys as | |
497 | // the base class will do that for us | |
498 | #if wxUSE_UNICODE | |
499 | const wxChar charcode = event.GetUnicodeKey(); | |
500 | #else | |
501 | const wxChar charcode = (wxChar)event.GetKeyCode(); | |
502 | #endif | |
503 | if ( wxIsprint(charcode) ) | |
504 | { | |
505 | OnComboCharEvent(event); | |
506 | SetSelection(m_value); // ensure the highlight bar moves | |
507 | return; // don't skip the event | |
508 | } | |
509 | } | |
510 | ||
511 | event.Skip(); | |
512 | } | |
513 | ||
514 | void wxVListBoxComboPopup::Insert( const wxString& item, int pos ) | |
515 | { | |
516 | // Need to change selection? | |
517 | wxString strValue; | |
518 | if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) && | |
519 | m_combo->GetValue() == item ) | |
520 | { | |
521 | m_value = pos; | |
522 | } | |
523 | ||
524 | m_strings.Insert(item,pos); | |
525 | if ( (int)m_clientDatas.size() >= pos ) | |
526 | m_clientDatas.Insert(NULL, pos); | |
527 | ||
528 | m_widths.Insert(-1,pos); | |
529 | m_widthsDirty = true; | |
530 | ||
531 | if ( IsCreated() ) | |
532 | wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 ); | |
533 | } | |
534 | ||
535 | int wxVListBoxComboPopup::Append(const wxString& item) | |
536 | { | |
537 | int pos = (int)m_strings.GetCount(); | |
538 | ||
539 | if ( m_combo->GetWindowStyle() & wxCB_SORT ) | |
540 | { | |
541 | // Find position | |
542 | // TODO: Could be optimized with binary search | |
543 | wxArrayString strings = m_strings; | |
544 | unsigned int i; | |
545 | ||
546 | for ( i=0; i<strings.GetCount(); i++ ) | |
547 | { | |
548 | if ( item.CmpNoCase(strings.Item(i)) <= 0 ) | |
549 | { | |
550 | pos = (int)i; | |
551 | break; | |
552 | } | |
553 | } | |
554 | } | |
555 | ||
556 | Insert(item,pos); | |
557 | ||
558 | return pos; | |
559 | } | |
560 | ||
561 | void wxVListBoxComboPopup::Clear() | |
562 | { | |
563 | wxASSERT(m_combo); | |
564 | ||
565 | m_strings.Empty(); | |
566 | m_widths.Empty(); | |
567 | ||
568 | m_widestWidth = 0; | |
569 | m_widestItem = -1; | |
570 | ||
571 | ClearClientDatas(); | |
572 | ||
573 | m_value = wxNOT_FOUND; | |
574 | ||
575 | if ( IsCreated() ) | |
576 | wxVListBox::SetItemCount(0); | |
577 | } | |
578 | ||
579 | void wxVListBoxComboPopup::ClearClientDatas() | |
580 | { | |
581 | if ( m_clientDataItemsType == wxClientData_Object ) | |
582 | { | |
583 | size_t i; | |
584 | for ( i=0; i<m_clientDatas.GetCount(); i++ ) | |
585 | delete (wxClientData*) m_clientDatas[i]; | |
586 | } | |
587 | ||
588 | m_clientDatas.Empty(); | |
589 | } | |
590 | ||
591 | void wxVListBoxComboPopup::SetItemClientData( unsigned int n, | |
592 | void* clientData, | |
593 | wxClientDataType clientDataItemsType ) | |
594 | { | |
595 | // It should be sufficient to update this variable only here | |
596 | m_clientDataItemsType = clientDataItemsType; | |
597 | ||
598 | m_clientDatas[n] = clientData; | |
599 | ||
600 | ItemWidthChanged(n); | |
601 | } | |
602 | ||
603 | void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const | |
604 | { | |
605 | if ( m_clientDatas.GetCount() > n ) | |
606 | return m_clientDatas[n]; | |
607 | ||
608 | return NULL; | |
609 | } | |
610 | ||
611 | void wxVListBoxComboPopup::Delete( unsigned int item ) | |
612 | { | |
613 | // Remove client data, if set | |
614 | if ( m_clientDatas.GetCount() ) | |
615 | { | |
616 | if ( m_clientDataItemsType == wxClientData_Object ) | |
617 | delete (wxClientData*) m_clientDatas[item]; | |
618 | ||
619 | m_clientDatas.RemoveAt(item); | |
620 | } | |
621 | ||
622 | m_strings.RemoveAt(item); | |
623 | m_widths.RemoveAt(item); | |
624 | ||
625 | if ( (int)item == m_widestItem ) | |
626 | m_findWidest = true; | |
627 | ||
628 | int sel = GetSelection(); | |
629 | ||
630 | if ( IsCreated() ) | |
631 | wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 ); | |
632 | ||
633 | // Fix selection | |
634 | if ( (int)item < sel ) | |
635 | SetSelection(sel-1); | |
636 | else if ( (int)item == sel ) | |
637 | SetSelection(wxNOT_FOUND); | |
638 | } | |
639 | ||
640 | int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const | |
641 | { | |
642 | return m_strings.Index(s, bCase); | |
643 | } | |
644 | ||
645 | bool wxVListBoxComboPopup::FindItem(const wxString& item, wxString* trueItem) | |
646 | { | |
647 | int idx = m_strings.Index(item, false); | |
648 | if ( idx == wxNOT_FOUND ) | |
649 | return false; | |
650 | if ( trueItem != NULL ) | |
651 | *trueItem = m_strings[idx]; | |
652 | return true; | |
653 | } | |
654 | ||
655 | unsigned int wxVListBoxComboPopup::GetCount() const | |
656 | { | |
657 | return m_strings.GetCount(); | |
658 | } | |
659 | ||
660 | wxString wxVListBoxComboPopup::GetString( int item ) const | |
661 | { | |
662 | return m_strings[item]; | |
663 | } | |
664 | ||
665 | void wxVListBoxComboPopup::SetString( int item, const wxString& str ) | |
666 | { | |
667 | m_strings[item] = str; | |
668 | ItemWidthChanged(item); | |
669 | } | |
670 | ||
671 | wxString wxVListBoxComboPopup::GetStringValue() const | |
672 | { | |
673 | return m_stringValue; | |
674 | } | |
675 | ||
676 | void wxVListBoxComboPopup::SetSelection( int item ) | |
677 | { | |
678 | wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()), | |
679 | wxT("invalid index in wxVListBoxComboPopup::SetSelection") ); | |
680 | ||
681 | m_value = item; | |
682 | ||
683 | if ( item >= 0 ) | |
684 | m_stringValue = m_strings[item]; | |
685 | else | |
686 | m_stringValue = wxEmptyString; | |
687 | ||
688 | if ( IsCreated() ) | |
689 | wxVListBox::SetSelection(item); | |
690 | } | |
691 | ||
692 | int wxVListBoxComboPopup::GetSelection() const | |
693 | { | |
694 | return m_value; | |
695 | } | |
696 | ||
697 | void wxVListBoxComboPopup::SetStringValue( const wxString& value ) | |
698 | { | |
699 | int index = m_strings.Index(value); | |
700 | ||
701 | m_stringValue = value; | |
702 | ||
703 | if ( index >= 0 && index < (int)wxVListBox::GetItemCount() ) | |
704 | { | |
705 | wxVListBox::SetSelection(index); | |
706 | m_value = index; | |
707 | } | |
708 | } | |
709 | ||
710 | void wxVListBoxComboPopup::CalcWidths() | |
711 | { | |
712 | bool doFindWidest = m_findWidest; | |
713 | ||
714 | // Measure items with dirty width. | |
715 | if ( m_widthsDirty ) | |
716 | { | |
717 | unsigned int i; | |
718 | unsigned int n = m_widths.GetCount(); | |
719 | int dirtyHandled = 0; | |
720 | wxArrayInt& widths = m_widths; | |
721 | ||
722 | // I think using wxDC::GetTextExtent is faster than | |
723 | // wxWindow::GetTextExtent (assuming same dc is used | |
724 | // for all calls, as we do here). | |
725 | wxClientDC dc(m_combo); | |
726 | dc.SetFont(m_useFont); | |
727 | ||
728 | for ( i=0; i<n; i++ ) | |
729 | { | |
730 | if ( widths[i] < 0 ) | |
731 | { | |
732 | wxCoord x = OnMeasureItemWidth(i); | |
733 | ||
734 | if ( x < 0 ) | |
735 | { | |
736 | const wxString& text = m_strings[i]; | |
737 | ||
738 | // To make sure performance won't suck in extreme scenarios, | |
739 | // we'll estimate length after some arbitrary number of items | |
740 | // have been checked precily. | |
741 | if ( dirtyHandled < 1024 ) | |
742 | { | |
743 | wxCoord y; | |
744 | dc.GetTextExtent(text, &x, &y, 0, 0); | |
745 | x += 4; | |
746 | } | |
747 | else | |
748 | { | |
749 | x = text.length() * (dc.GetCharWidth()+1); | |
750 | } | |
751 | } | |
752 | ||
753 | widths[i] = x; | |
754 | ||
755 | if ( x >= m_widestWidth ) | |
756 | { | |
757 | m_widestWidth = x; | |
758 | m_widestItem = (int)i; | |
759 | } | |
760 | else if ( (int)i == m_widestItem ) | |
761 | { | |
762 | // Width of previously widest item has been decreased, so | |
763 | // we'll have to check all to find current widest item. | |
764 | doFindWidest = true; | |
765 | } | |
766 | ||
767 | dirtyHandled++; | |
768 | } | |
769 | } | |
770 | ||
771 | m_widthsDirty = false; | |
772 | } | |
773 | ||
774 | if ( doFindWidest ) | |
775 | { | |
776 | unsigned int i; | |
777 | unsigned int n = m_widths.GetCount(); | |
778 | ||
779 | int bestWidth = -1; | |
780 | int bestIndex = -1; | |
781 | ||
782 | for ( i=0; i<n; i++ ) | |
783 | { | |
784 | int w = m_widths[i]; | |
785 | if ( w > bestWidth ) | |
786 | { | |
787 | bestIndex = (int)i; | |
788 | bestWidth = w; | |
789 | } | |
790 | } | |
791 | ||
792 | m_widestWidth = bestWidth; | |
793 | m_widestItem = bestIndex; | |
794 | ||
795 | m_findWidest = false; | |
796 | } | |
797 | } | |
798 | ||
799 | wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight ) | |
800 | { | |
801 | int height = 250; | |
802 | ||
803 | maxHeight -= 2; // Must take borders into account | |
804 | ||
805 | if ( m_strings.GetCount() ) | |
806 | { | |
807 | if ( prefHeight > 0 ) | |
808 | height = prefHeight; | |
809 | ||
810 | if ( height > maxHeight ) | |
811 | height = maxHeight; | |
812 | ||
813 | int totalHeight = GetTotalHeight(); // + 3; | |
814 | ||
815 | // Take borders into account on Mac or scrollbars always appear | |
816 | #if defined(__WXMAC__) | |
817 | totalHeight += 2; | |
818 | #endif | |
819 | if ( height >= totalHeight ) | |
820 | { | |
821 | height = totalHeight; | |
822 | } | |
823 | else | |
824 | { | |
825 | // Adjust height to a multiple of the height of the first item | |
826 | // NB: Calculations that take variable height into account | |
827 | // are unnecessary. | |
828 | int fih = GetLineHeight(0); | |
829 | height -= height % fih; | |
830 | } | |
831 | } | |
832 | else | |
833 | height = 50; | |
834 | ||
835 | CalcWidths(); | |
836 | ||
837 | // Take scrollbar into account in width calculations | |
838 | int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X); | |
839 | return wxSize(minWidth > widestWidth ? minWidth : widestWidth, | |
840 | height+2); | |
841 | } | |
842 | ||
843 | //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] ) | |
844 | void wxVListBoxComboPopup::Populate( const wxArrayString& choices ) | |
845 | { | |
846 | int i; | |
847 | ||
848 | int n = choices.GetCount(); | |
849 | ||
850 | for ( i=0; i<n; i++ ) | |
851 | { | |
852 | const wxString& item = choices.Item(i); | |
853 | m_strings.Add(item); | |
854 | } | |
855 | ||
856 | m_widths.SetCount(n,-1); | |
857 | m_widthsDirty = true; | |
858 | ||
859 | if ( IsCreated() ) | |
860 | wxVListBox::SetItemCount(n); | |
861 | ||
862 | // Sort the initial choices | |
863 | if ( m_combo->GetWindowStyle() & wxCB_SORT ) | |
864 | m_strings.Sort(); | |
865 | ||
866 | // Find initial selection | |
867 | wxString strValue = m_combo->GetValue(); | |
868 | if ( !strValue.empty() ) | |
869 | m_value = m_strings.Index(strValue); | |
870 | } | |
871 | ||
872 | // ---------------------------------------------------------------------------- | |
873 | // wxOwnerDrawnComboBox | |
874 | // ---------------------------------------------------------------------------- | |
875 | ||
876 | ||
877 | BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl) | |
878 | END_EVENT_TABLE() | |
879 | ||
880 | void wxOwnerDrawnComboBox::Init() | |
881 | { | |
882 | } | |
883 | ||
884 | bool wxOwnerDrawnComboBox::Create(wxWindow *parent, | |
885 | wxWindowID id, | |
886 | const wxString& value, | |
887 | const wxPoint& pos, | |
888 | const wxSize& size, | |
889 | long style, | |
890 | const wxValidator& validator, | |
891 | const wxString& name) | |
892 | { | |
893 | return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name); | |
894 | } | |
895 | ||
896 | wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent, | |
897 | wxWindowID id, | |
898 | const wxString& value, | |
899 | const wxPoint& pos, | |
900 | const wxSize& size, | |
901 | const wxArrayString& choices, | |
902 | long style, | |
903 | const wxValidator& validator, | |
904 | const wxString& name) | |
905 | { | |
906 | Init(); | |
907 | ||
908 | Create(parent,id,value,pos,size,choices,style, validator, name); | |
909 | } | |
910 | ||
911 | bool wxOwnerDrawnComboBox::Create(wxWindow *parent, | |
912 | wxWindowID id, | |
913 | const wxString& value, | |
914 | const wxPoint& pos, | |
915 | const wxSize& size, | |
916 | const wxArrayString& choices, | |
917 | long style, | |
918 | const wxValidator& validator, | |
919 | const wxString& name) | |
920 | { | |
921 | m_initChs = choices; | |
922 | //wxCArrayString chs(choices); | |
923 | ||
924 | //return Create(parent, id, value, pos, size, chs.GetCount(), | |
925 | // chs.GetStrings(), style, validator, name); | |
926 | return Create(parent, id, value, pos, size, 0, | |
927 | NULL, style, validator, name); | |
928 | } | |
929 | ||
930 | bool wxOwnerDrawnComboBox::Create(wxWindow *parent, | |
931 | wxWindowID id, | |
932 | const wxString& value, | |
933 | const wxPoint& pos, | |
934 | const wxSize& size, | |
935 | int n, | |
936 | const wxString choices[], | |
937 | long style, | |
938 | const wxValidator& validator, | |
939 | const wxString& name) | |
940 | { | |
941 | ||
942 | if ( !Create(parent, id, value, pos, size, style, | |
943 | validator, name) ) | |
944 | { | |
945 | return false; | |
946 | } | |
947 | ||
948 | int i; | |
949 | for ( i=0; i<n; i++ ) | |
950 | m_initChs.Add(choices[i]); | |
951 | ||
952 | return true; | |
953 | } | |
954 | ||
955 | wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox() | |
956 | { | |
957 | if ( m_popupInterface ) | |
958 | GetVListBoxComboPopup()->ClearClientDatas(); | |
959 | } | |
960 | ||
961 | void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup) | |
962 | { | |
963 | if ( !popup ) | |
964 | { | |
965 | popup = new wxVListBoxComboPopup(); | |
966 | } | |
967 | ||
968 | wxComboCtrl::DoSetPopupControl(popup); | |
969 | ||
970 | wxASSERT(popup); | |
971 | ||
972 | // Add initial choices to the wxVListBox | |
973 | if ( !GetVListBoxComboPopup()->GetCount() ) | |
974 | { | |
975 | GetVListBoxComboPopup()->Populate(m_initChs); | |
976 | m_initChs.Clear(); | |
977 | } | |
978 | } | |
979 | ||
980 | // ---------------------------------------------------------------------------- | |
981 | // wxOwnerDrawnComboBox item manipulation methods | |
982 | // ---------------------------------------------------------------------------- | |
983 | ||
984 | void wxOwnerDrawnComboBox::DoClear() | |
985 | { | |
986 | EnsurePopupControl(); | |
987 | ||
988 | GetVListBoxComboPopup()->Clear(); | |
989 | ||
990 | // NB: This really needs to be SetValue() instead of ChangeValue(), | |
991 | // as wxTextEntry API expects an event to be sent. | |
992 | SetValue(wxEmptyString); | |
993 | } | |
994 | ||
995 | void wxOwnerDrawnComboBox::Clear() | |
996 | { | |
997 | DoClear(); | |
998 | } | |
999 | ||
1000 | void wxOwnerDrawnComboBox::DoDeleteOneItem(unsigned int n) | |
1001 | { | |
1002 | wxCHECK_RET( IsValid(n), wxT("invalid index in wxOwnerDrawnComboBox::Delete") ); | |
1003 | ||
1004 | if ( GetSelection() == (int) n ) | |
1005 | ChangeValue(wxEmptyString); | |
1006 | ||
1007 | GetVListBoxComboPopup()->Delete(n); | |
1008 | } | |
1009 | ||
1010 | unsigned int wxOwnerDrawnComboBox::GetCount() const | |
1011 | { | |
1012 | if ( !m_popupInterface ) | |
1013 | return m_initChs.GetCount(); | |
1014 | ||
1015 | return GetVListBoxComboPopup()->GetCount(); | |
1016 | } | |
1017 | ||
1018 | wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const | |
1019 | { | |
1020 | wxCHECK_MSG( IsValid(n), wxEmptyString, wxT("invalid index in wxOwnerDrawnComboBox::GetString") ); | |
1021 | ||
1022 | if ( !m_popupInterface ) | |
1023 | return m_initChs.Item(n); | |
1024 | ||
1025 | return GetVListBoxComboPopup()->GetString(n); | |
1026 | } | |
1027 | ||
1028 | void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s) | |
1029 | { | |
1030 | EnsurePopupControl(); | |
1031 | ||
1032 | wxCHECK_RET( IsValid(n), wxT("invalid index in wxOwnerDrawnComboBox::SetString") ); | |
1033 | ||
1034 | GetVListBoxComboPopup()->SetString(n,s); | |
1035 | } | |
1036 | ||
1037 | int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const | |
1038 | { | |
1039 | if ( !m_popupInterface ) | |
1040 | return m_initChs.Index(s, bCase); | |
1041 | ||
1042 | return GetVListBoxComboPopup()->FindString(s, bCase); | |
1043 | } | |
1044 | ||
1045 | void wxOwnerDrawnComboBox::Select(int n) | |
1046 | { | |
1047 | EnsurePopupControl(); | |
1048 | ||
1049 | wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), wxT("invalid index in wxOwnerDrawnComboBox::Select") ); | |
1050 | ||
1051 | GetVListBoxComboPopup()->SetSelection(n); | |
1052 | ||
1053 | wxString str; | |
1054 | if ( n >= 0 ) | |
1055 | str = GetVListBoxComboPopup()->GetString(n); | |
1056 | ||
1057 | // Refresh text portion in control | |
1058 | if ( m_text ) | |
1059 | m_text->ChangeValue( str ); | |
1060 | else | |
1061 | m_valueString = str; | |
1062 | ||
1063 | Refresh(); | |
1064 | } | |
1065 | ||
1066 | int wxOwnerDrawnComboBox::GetSelection() const | |
1067 | { | |
1068 | if ( !m_popupInterface ) | |
1069 | return m_initChs.Index(m_valueString); | |
1070 | ||
1071 | return GetVListBoxComboPopup()->GetSelection(); | |
1072 | } | |
1073 | ||
1074 | void wxOwnerDrawnComboBox::GetSelection(long *from, long *to) const | |
1075 | { | |
1076 | wxComboCtrl::GetSelection(from, to); | |
1077 | } | |
1078 | ||
1079 | int wxOwnerDrawnComboBox::DoInsertItems(const wxArrayStringsAdapter& items, | |
1080 | unsigned int pos, | |
1081 | void **clientData, | |
1082 | wxClientDataType type) | |
1083 | { | |
1084 | EnsurePopupControl(); | |
1085 | ||
1086 | const unsigned int count = items.GetCount(); | |
1087 | ||
1088 | if ( HasFlag(wxCB_SORT) ) | |
1089 | { | |
1090 | int n = pos; | |
1091 | ||
1092 | for ( unsigned int i = 0; i < count; ++i ) | |
1093 | { | |
1094 | n = GetVListBoxComboPopup()->Append(items[i]); | |
1095 | AssignNewItemClientData(n, clientData, i, type); | |
1096 | } | |
1097 | ||
1098 | return n; | |
1099 | } | |
1100 | else | |
1101 | { | |
1102 | for ( unsigned int i = 0; i < count; ++i, ++pos ) | |
1103 | { | |
1104 | GetVListBoxComboPopup()->Insert(items[i], pos); | |
1105 | AssignNewItemClientData(pos, clientData, i, type); | |
1106 | } | |
1107 | ||
1108 | return pos - 1; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData) | |
1113 | { | |
1114 | EnsurePopupControl(); | |
1115 | ||
1116 | GetVListBoxComboPopup()->SetItemClientData(n, clientData, | |
1117 | GetClientDataType()); | |
1118 | } | |
1119 | ||
1120 | void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const | |
1121 | { | |
1122 | if ( !m_popupInterface ) | |
1123 | return NULL; | |
1124 | ||
1125 | return GetVListBoxComboPopup()->GetItemClientData(n); | |
1126 | } | |
1127 | ||
1128 | // ---------------------------------------------------------------------------- | |
1129 | // wxOwnerDrawnComboBox item drawing and measuring default implementations | |
1130 | // ---------------------------------------------------------------------------- | |
1131 | ||
1132 | void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc, | |
1133 | const wxRect& rect, | |
1134 | int item, | |
1135 | int flags ) const | |
1136 | { | |
1137 | if ( flags & wxODCB_PAINTING_CONTROL ) | |
1138 | { | |
1139 | wxString text; | |
1140 | ||
1141 | if ( !ShouldUseHintText() ) | |
1142 | { | |
1143 | text = GetValue(); | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | text = GetHint(); | |
1148 | wxColour col = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT); | |
1149 | dc.SetTextForeground(col); | |
1150 | } | |
1151 | ||
1152 | dc.DrawText( text, | |
1153 | rect.x + GetMargins().x, | |
1154 | (rect.height-dc.GetCharHeight())/2 + rect.y ); | |
1155 | } | |
1156 | else | |
1157 | { | |
1158 | dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y ); | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const | |
1163 | { | |
1164 | return -1; | |
1165 | } | |
1166 | ||
1167 | wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const | |
1168 | { | |
1169 | return -1; | |
1170 | } | |
1171 | ||
1172 | void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, | |
1173 | const wxRect& rect, | |
1174 | int WXUNUSED(item), | |
1175 | int flags) const | |
1176 | { | |
1177 | // We need only to explicitly draw background for items | |
1178 | // that should have selected background. Also, call PrepareBackground | |
1179 | // always when painting the control so that clipping is done properly. | |
1180 | ||
1181 | if ( (flags & wxODCB_PAINTING_SELECTED) || | |
1182 | ((flags & wxODCB_PAINTING_CONTROL) && HasFlag(wxCB_READONLY)) ) | |
1183 | { | |
1184 | int bgFlags = wxCONTROL_SELECTED; | |
1185 | ||
1186 | if ( !(flags & wxODCB_PAINTING_CONTROL) ) | |
1187 | bgFlags |= wxCONTROL_ISSUBMENU; | |
1188 | ||
1189 | PrepareBackground(dc, rect, bgFlags); | |
1190 | } | |
1191 | } | |
1192 | ||
1193 | #endif // wxUSE_ODCOMBOBOX |