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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
51class WXDLLEXPORT wxStdComboBoxInputHandler : public wxStdInputHandler
52{
53public:
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
66class wxComboListBox : public wxListBox, public wxComboPopup
67{
68public:
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
90protected:
91 // set m_clicked value from here
92 void OnLeftUp(wxMouseEvent& event);
93
94private:
95 DECLARE_EVENT_TABLE()
96};
97
98// ----------------------------------------------------------------------------
99// event tables and such
100// ----------------------------------------------------------------------------
101
102BEGIN_EVENT_TABLE(wxComboListBox, wxListBox)
103 EVT_LEFT_UP(wxComboListBox::OnLeftUp)
104END_EVENT_TABLE()
105
106IMPLEMENT_DYNAMIC_CLASS2(wxComboBox, wxControl, wxComboCtrl)
107
108// ============================================================================
109// implementation
110// ============================================================================
111
112// ----------------------------------------------------------------------------
113// wxComboListBox
114// ----------------------------------------------------------------------------
115
116wxComboListBox::wxComboListBox() : wxListBox(), wxComboPopup()
117{
118}
119
120bool 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
135wxComboListBox::~wxComboListBox()
136{
137}
138
139wxString wxComboListBox::GetStringValue() const
140{
141 return wxListBox::GetStringSelection();
142}
143
144void 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
155void wxComboListBox::OnPopup()
156{
157}
158
159bool 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
175void 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
191wxSize 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
204void wxComboBox::Init()
205{
206 m_lbox = (wxListBox *)NULL;
207}
208
209wxComboBox::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
224bool 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
240bool 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
266wxComboBox::~wxComboBox()
267{
268}
269
270// ----------------------------------------------------------------------------
271// wxComboBox methods forwarded to wxTextCtrl
272// ----------------------------------------------------------------------------
273
274wxString wxComboBox::GetValue() const
275{
276 return wxComboCtrl::GetValue();
277}
278
279void wxComboBox::SetValue(const wxString& value)
280{
281 wxComboCtrl::SetValue(value);
282}
283
284void wxComboBox::Copy()
285{
286 if ( GetTextCtrl() ) GetTextCtrl()->Copy();
287}
288
289void wxComboBox::Cut()
290{
291 if ( GetTextCtrl() ) GetTextCtrl()->Cut();
292}
293
294void wxComboBox::Paste()
295{
296 if ( GetTextCtrl() ) GetTextCtrl()->Paste();
297}
298
299void wxComboBox::SetInsertionPoint(long pos)
300{
301 if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPoint(pos);
302}
303
304void wxComboBox::SetInsertionPointEnd()
305{
306 if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPointEnd();
307}
308
309long wxComboBox::GetInsertionPoint() const
310{
311 if ( GetTextCtrl() )
312 return GetTextCtrl()->GetInsertionPoint();
313 return -1;
314}
315
316wxTextPos wxComboBox::GetLastPosition() const
317{
318 if ( GetTextCtrl() )
319 return GetTextCtrl()->GetLastPosition();
320 return -1;
321}
322
323void wxComboBox::Replace(long from, long to, const wxString& value)
324{
325 if ( GetTextCtrl() ) GetTextCtrl()->Replace(from, to, value);
326}
327
328void wxComboBox::Remove(long from, long to)
329{
330 if ( GetTextCtrl() ) GetTextCtrl()->Remove(from, to);
331}
332
333void wxComboBox::SetSelection(long from, long to)
334{
335 if ( GetTextCtrl() ) GetTextCtrl()->SetSelection(from, to);
336}
337
338void wxComboBox::SetEditable(bool editable)
339{
340 if ( GetTextCtrl() ) GetTextCtrl()->SetEditable(editable);
341}
342
343// ----------------------------------------------------------------------------
344// wxComboBox methods forwarded to wxListBox
345// ----------------------------------------------------------------------------
346
347void wxComboBox::Clear()
348{
349 GetLBox()->Clear();
350 if ( GetTextCtrl() ) GetTextCtrl()->SetValue(wxEmptyString);
351}
352
353void 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
363unsigned int wxComboBox::GetCount() const
364{
365 return GetLBox()->GetCount();
366}
367
368wxString 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
375void 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
382int wxComboBox::FindString(const wxString& s, bool bCase) const
383{
384 return GetLBox()->FindString(s, bCase);
385}
386
387void 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
396int 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
409int wxComboBox::DoAppend(const wxString& item)
410{
411 return GetLBox()->Append(item);
412}
413
414int 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
426void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)
427{
428 GetLBox()->SetClientData(n, clientData);
429}
430
431void *wxComboBox::DoGetItemClientData(unsigned int n) const
432{
433 return GetLBox()->GetClientData(n);
434}
435
436void wxComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
437{
438 GetLBox()->SetClientObject(n, clientData);
439}
440
441wxClientData* wxComboBox::DoGetItemClientObject(unsigned int n) const
442{
443 return GetLBox()->GetClientObject(n);
444}
445
446bool wxComboBox::IsEditable() const
447{
448 return GetTextCtrl() != NULL && (!HasFlag(wxCB_READONLY) || GetTextCtrl()->IsEditable() );
449}
450
451void wxComboBox::Undo()
452{
453 if (IsEditable())
454 if ( GetTextCtrl() ) GetTextCtrl()->Undo();
455}
456
457void wxComboBox::Redo()
458{
459 if (IsEditable())
460 if ( GetTextCtrl() ) GetTextCtrl()->Redo();
461}
462
463void wxComboBox::SelectAll()
464{
465 if ( GetTextCtrl() ) GetTextCtrl()->SelectAll();
466}
467
468bool wxComboBox::CanCopy() const
469{
470 if (GetTextCtrl() != NULL)
471 return GetTextCtrl()->CanCopy();
472 else
473 return false;
474}
475
476bool wxComboBox::CanCut() const
477{
478 if (GetTextCtrl() != NULL)
479 return GetTextCtrl()->CanCut();
480 else
481 return false;
482}
483
484bool wxComboBox::CanPaste() const
485{
486 if (IsEditable())
487 return GetTextCtrl()->CanPaste();
488 else
489 return false;
490}
491
492bool wxComboBox::CanUndo() const
493{
494 if (IsEditable())
495 return GetTextCtrl()->CanUndo();
496 else
497 return false;
498}
499
500bool wxComboBox::CanRedo() const
501{
502 if (IsEditable())
503 return GetTextCtrl()->CanRedo();
504 else
505 return false;
506}
507
508
509// ----------------------------------------------------------------------------
510// wxStdComboBoxInputHandler
511// ----------------------------------------------------------------------------
512
513wxStdComboBoxInputHandler::wxStdComboBoxInputHandler(wxInputHandler *inphand)
514 : wxStdInputHandler(inphand)
515{
516}
517
518bool 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 */
548wxInputHandler *wxComboBox::GetStdInputHandler(wxInputHandler *handlerDef)
549{
550 static wxStdComboBoxInputHandler s_handler(handlerDef);
551
552 return &s_handler;
553}
554
555#endif // wxUSE_COMBOBOX