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2bda0e17 1/////////////////////////////////////////////////////////////////////////////
f6bcfd97 2// Name: msw/combobox.cpp
2bda0e17
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3// Purpose: wxComboBox class
4// Author: Julian Smart
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
6c9a19aa 8// Copyright: (c) Julian Smart
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
14f355c2 20#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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21#pragma implementation "combobox.h"
22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
fddfd9e1 28 #pragma hdrstop
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29#endif
30
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31#if wxUSE_COMBOBOX
32
2bda0e17 33#ifndef WX_PRECOMP
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34 #include "wx/settings.h"
35 #include "wx/log.h"
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36 // for wxEVT_COMMAND_TEXT_ENTER
37 #include "wx/textctrl.h"
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38#endif
39
350a44d9 40#include "wx/app.h"
2bda0e17 41#include "wx/combobox.h"
f6bcfd97 42#include "wx/brush.h"
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43#include "wx/clipbrd.h"
44#include "wx/msw/private.h"
45
f6bcfd97 46#if wxUSE_TOOLTIPS
ae090fdb 47 #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
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48 #include <commctrl.h>
49 #endif
50 #include "wx/tooltip.h"
51#endif // wxUSE_TOOLTIPS
52
53// ----------------------------------------------------------------------------
54// wxWin macros
55// ----------------------------------------------------------------------------
56
6a89f9ee 57#if wxUSE_EXTENDED_RTTI
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58WX_DEFINE_FLAGS( wxComboBoxStyle )
59
3ff066a4 60wxBEGIN_FLAGS( wxComboBoxStyle )
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61 // new style border flags, we put them first to
62 // use them for streaming out
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63 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
64 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
65 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
66 wxFLAGS_MEMBER(wxBORDER_RAISED)
67 wxFLAGS_MEMBER(wxBORDER_STATIC)
68 wxFLAGS_MEMBER(wxBORDER_NONE)
02b7b6b0 69
bc9fb572 70 // old style border flags
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71 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
72 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
73 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
74 wxFLAGS_MEMBER(wxRAISED_BORDER)
75 wxFLAGS_MEMBER(wxSTATIC_BORDER)
cb0afb26 76 wxFLAGS_MEMBER(wxBORDER)
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77
78 // standard window styles
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79 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
80 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
81 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
82 wxFLAGS_MEMBER(wxWANTS_CHARS)
cb0afb26 83 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
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84 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
85 wxFLAGS_MEMBER(wxVSCROLL)
86 wxFLAGS_MEMBER(wxHSCROLL)
87
88 wxFLAGS_MEMBER(wxCB_SIMPLE)
89 wxFLAGS_MEMBER(wxCB_SORT)
90 wxFLAGS_MEMBER(wxCB_READONLY)
91 wxFLAGS_MEMBER(wxCB_DROPDOWN)
92
93wxEND_FLAGS( wxComboBoxStyle )
bc9fb572 94
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95IMPLEMENT_DYNAMIC_CLASS_XTI(wxComboBox, wxControl,"wx/combobox.h")
96
3ff066a4 97wxBEGIN_PROPERTIES_TABLE(wxComboBox)
02b7b6b0 98 wxEVENT_PROPERTY( Select , wxEVT_COMMAND_COMBOBOX_SELECTED , wxCommandEvent )
3ff066a4 99 wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
c5ca409b 100
6a89f9ee 101 // TODO DELEGATES
02b7b6b0 102 wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
3ff066a4 103 wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
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104 wxPROPERTY( Value ,wxString, SetValue, GetValue, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
105 wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
af498247 106 wxPROPERTY_FLAGS( WindowStyle , wxComboBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
3ff066a4 107wxEND_PROPERTIES_TABLE()
6a89f9ee 108
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109wxBEGIN_HANDLERS_TABLE(wxComboBox)
110wxEND_HANDLERS_TABLE()
2bda0e17 111
3ff066a4 112wxCONSTRUCTOR_5( wxComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
bb8d428f 113
6a89f9ee 114#else
bb8d428f 115
6a89f9ee 116IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
150e31d2 117
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118#endif
119
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120BEGIN_EVENT_TABLE(wxComboBox, wxControl)
121 EVT_MENU(wxID_CUT, wxComboBox::OnCut)
122 EVT_MENU(wxID_COPY, wxComboBox::OnCopy)
123 EVT_MENU(wxID_PASTE, wxComboBox::OnPaste)
124 EVT_MENU(wxID_UNDO, wxComboBox::OnUndo)
125 EVT_MENU(wxID_REDO, wxComboBox::OnRedo)
126 EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete)
127 EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll)
128
129 EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut)
130 EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy)
131 EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste)
132 EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo)
133 EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo)
134 EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete)
135 EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
136END_EVENT_TABLE()
137
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138// ----------------------------------------------------------------------------
139// function prototypes
140// ----------------------------------------------------------------------------
141
142LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
143 UINT message,
144 WPARAM wParam,
145 LPARAM lParam);
146
147// ---------------------------------------------------------------------------
148// global vars
149// ---------------------------------------------------------------------------
150
151// the pointer to standard radio button wnd proc
975b6bcf 152static WNDPROC gs_wndprocEdit = (WNDPROC)NULL;
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153
154// ============================================================================
155// implementation
156// ============================================================================
157
158// ----------------------------------------------------------------------------
159// wnd proc for subclassed edit control
160// ----------------------------------------------------------------------------
161
162LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
163 UINT message,
164 WPARAM wParam,
165 LPARAM lParam)
166{
167 HWND hwndCombo = ::GetParent(hWnd);
168 wxWindow *win = wxFindWinFromHandle((WXHWND)hwndCombo);
169
170 switch ( message )
171 {
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172 // forward some messages to the combobox to generate the appropriate
173 // wxEvents from them
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174 case WM_KEYUP:
175 case WM_KEYDOWN:
176 case WM_CHAR:
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177 case WM_SETFOCUS:
178 case WM_KILLFOCUS:
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179 {
180 wxComboBox *combo = wxDynamicCast(win, wxComboBox);
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181 if ( !combo )
182 {
183 // we can get WM_KILLFOCUS while our parent is already half
184 // destroyed and hence doesn't look like a combobx any
185 // longer, check for it to avoid bogus assert failures
186 if ( !win->IsBeingDeleted() )
187 {
188 wxFAIL_MSG( _T("should have combo as parent") );
189 }
190 }
191 else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
192 {
193 // handled by parent
f6bcfd97 194 return 0;
64b39766 195 }
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196 }
197 break;
198
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199 case WM_GETDLGCODE:
200 {
201 wxCHECK_MSG( win, 0, _T("should have a parent") );
202
203 if ( win->GetWindowStyle() & wxPROCESS_ENTER )
204 {
205 // need to return a custom dlg code or we'll never get it
206 return DLGC_WANTMESSAGE;
207 }
208 }
209 break;
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210
211 // deal with tooltips here
ae090fdb 212#if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT)
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213 case WM_NOTIFY:
214 {
215 wxCHECK_MSG( win, 0, _T("should have a parent") );
216
217 NMHDR* hdr = (NMHDR *)lParam;
2b5f62a0 218 if ( hdr->code == TTN_NEEDTEXT )
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219 {
220 wxToolTip *tooltip = win->GetToolTip();
221 if ( tooltip )
222 {
223 TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
224 ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
225 }
226
227 // processed
228 return 0;
229 }
230 }
231 break;
232#endif // wxUSE_TOOLTIPS
233 }
234
235 return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
236}
237
f6bcfd97 238// ----------------------------------------------------------------------------
3a7d5f7c 239// wxComboBox callbacks
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240// ----------------------------------------------------------------------------
241
c140b7e7 242WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
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243{
244 // handle WM_CTLCOLOR messages from our EDIT control to be able to set its
245 // colour correctly (to be the same as our own one)
246 switch ( nMsg )
247 {
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248 case CB_SETCURSEL:
249 // Selection was set with SetSelection. Update the value too.
bee67147 250 if ((int)wParam > GetCount())
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251 m_value = wxEmptyString;
252 else
253 m_value = GetString(wParam);
254 break;
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255 }
256
257 return wxChoice::MSWWindowProc(nMsg, wParam, lParam);
258}
259
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260bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
261{
262 switch ( msg )
263 {
264 case WM_CHAR:
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265 // for compatibility with wxTextCtrl, generate a special message
266 // when Enter is pressed
267 if ( wParam == VK_RETURN )
268 {
269 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
270 InitCommandEvent(event);
271 event.SetString(GetValue());
272 event.SetInt(GetSelection());
273 ProcessCommand(event);
274 }
275
02b7b6b0 276 return HandleChar(wParam, lParam, true /* isASCII */);
889f0b7c 277
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278 case WM_KEYDOWN:
279 return HandleKeyDown(wParam, lParam);
280
281 case WM_KEYUP:
282 return HandleKeyUp(wParam, lParam);
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283
284 case WM_SETFOCUS:
285 return HandleSetFocus((WXHWND)wParam);
286
287 case WM_KILLFOCUS:
288 return HandleKillFocus((WXHWND)wParam);
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289 }
290
02b7b6b0 291 return false;
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292}
293
debe6624 294bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
2bda0e17 295{
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296 wxString value;
297 int sel = -1;
cd0b1709 298 switch ( param )
8c1c5302 299 {
cd0b1709 300 case CBN_SELCHANGE:
fddfd9e1 301 sel = GetSelection();
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302
303 // somehow we get 2 CBN_SELCHANGE events with the same index when
304 // the user selects an item in the combobox -- ignore duplicates
305 if ( sel > -1 && sel != m_selectionOld )
cd0b1709 306 {
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307 m_selectionOld = sel;
308
309 // GetValue() would still return the old value from here but
310 // according to the docs we should return the new value if the
311 // user calls it in his event handler, so update internal
312 // m_value
313 m_value = GetString(sel);
fddfd9e1 314
cd0b1709 315 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
fddfd9e1 316 event.SetInt(sel);
cd0b1709 317 event.SetEventObject(this);
13bcc348 318 event.SetString(m_value);
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319 ProcessCommand(event);
320 }
13bcc348 321 else // no valid selection
fddfd9e1 322 {
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323 m_selectionOld = sel;
324
325 // hence no EVT_TEXT neither
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326 break;
327 }
328
329 // fall through: for compability with wxGTK, also send the text
330 // update event when the selection changes (this also seems more
331 // logical as the text does change)
29006414 332
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333 case CBN_EDITCHANGE:
334 {
7ba166dd 335 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
3adc70bf 336
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337 // if sel != -1, value was initialized above (and we can't use
338 // GetValue() here as it would return the old selection and we
339 // want the new one)
7ba166dd 340 if ( sel == -1 )
3adc70bf 341 {
9a6bc656 342 m_value = wxGetWindowText(GetHwnd());
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343 }
344 else // we're synthesizing text updated event from sel change
345 {
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346 // We need to retrieve the current selection because the
347 // user may have changed it in the previous handler (for
348 // CBN_SELCHANGE above).
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349 sel = GetSelection();
350 if ( sel > -1 )
351 {
13bcc348 352 m_value = GetString(sel);
28764ac9 353 }
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354 }
355
13bcc348 356 event.SetString(m_value);
cd0b1709 357 event.SetEventObject(this);
0ef2ebba 358 ProcessCommand(event);
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359 }
360 break;
361 }
29006414 362
cd0b1709 363 // there is no return value for the CBN_ notifications, so always return
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364 // false from here to pass the message to DefWindowProc()
365 return false;
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366}
367
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368WXHWND wxComboBox::GetEditHWND() const
369{
370 // this function should not be called for wxCB_READONLY controls, it is
371 // the callers responsability to check this
372 wxASSERT_MSG( !(GetWindowStyle() & wxCB_READONLY),
373 _T("read-only combobox doesn't have any edit control") );
374
375 POINT pt;
376 pt.x = pt.y = 4;
377 HWND hwndEdit = ::ChildWindowFromPoint(GetHwnd(), pt);
378 if ( !hwndEdit || hwndEdit == GetHwnd() )
379 {
380 wxFAIL_MSG(_T("not read only combobox without edit control?"));
381 }
382
383 return (WXHWND)hwndEdit;
384}
385
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386// ----------------------------------------------------------------------------
387// wxComboBox creation
388// ----------------------------------------------------------------------------
389
debe6624 390bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
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391 const wxString& value,
392 const wxPoint& pos,
393 const wxSize& size,
394 int n, const wxString choices[],
395 long style,
396 const wxValidator& validator,
397 const wxString& name)
2bda0e17 398{
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399 // pretend that wxComboBox is hidden while it is positioned and resized and
400 // show it only right before leaving this method because otherwise there is
401 // some noticeable flicker while the control rearranges itself
02b7b6b0 402 m_isShown = false;
bdf5c30d 403
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404 if ( !CreateAndInit(parent, id, pos, size, n, choices, style,
405 validator, name) )
02b7b6b0 406 return false;
f6bcfd97 407
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408 // we shouldn't call SetValue() for an empty string because this would
409 // (correctly) result in an assert with a read only combobox and is useless
410 // for the other ones anyhow
411 if ( !value.empty() )
b9b8a2b5 412 SetValue(value);
db34b147 413
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414 // a (not read only) combobox is, in fact, 2 controls: the combobox itself
415 // and an edit control inside it and if we want to catch events from this
416 // edit control, we must subclass it as well
417 if ( !(style & wxCB_READONLY) )
418 {
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419 gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(),
420 wxComboEditWndProc);
f6bcfd97 421 }
2bda0e17 422
bdf5c30d 423 // and finally, show the control
02b7b6b0 424 Show(true);
bdf5c30d 425
02b7b6b0 426 return true;
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427}
428
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429bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
430 const wxString& value,
431 const wxPoint& pos,
432 const wxSize& size,
433 const wxArrayString& choices,
434 long style,
435 const wxValidator& validator,
436 const wxString& name)
437{
438 wxCArrayString chs(choices);
439 return Create(parent, id, value, pos, size, chs.GetCount(),
440 chs.GetStrings(), style, validator, name);
441}
442
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443WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const
444{
445 // we never have an external border
446 WXDWORD msStyle = wxChoice::MSWGetStyle
447 (
448 (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
449 );
450
451 // remove the style always added by wxChoice
452 msStyle &= ~CBS_DROPDOWNLIST;
453
454 if ( style & wxCB_READONLY )
455 msStyle |= CBS_DROPDOWNLIST;
456#ifndef __WXWINCE__
457 else if ( style & wxCB_SIMPLE )
458 msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
459#endif
460 else
461 msStyle |= CBS_DROPDOWN;
462
463 // there is no reason to not always use CBS_AUTOHSCROLL, so do use it
464 msStyle |= CBS_AUTOHSCROLL;
465
466 // NB: we used to also add CBS_NOINTEGRALHEIGHT here but why?
467
468 return msStyle;
469}
470
471// ----------------------------------------------------------------------------
472// wxComboBox text control-like methods
473// ----------------------------------------------------------------------------
474
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475void wxComboBox::SetValue(const wxString& value)
476{
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477 if ( HasFlag(wxCB_READONLY) )
478 SetStringSelection(value);
b38f3ff3 479 else
2b5f62a0 480 SetWindowText(GetHwnd(), value.c_str());
13bcc348 481
9a6bc656 482 m_value = value;
13bcc348 483 m_selectionOld = GetSelection();
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484}
485
486// Clipboard operations
1c4a764c 487void wxComboBox::Copy()
2bda0e17 488{
150e31d2 489 SendMessage(GetHwnd(), WM_COPY, 0, 0L);
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490}
491
1c4a764c 492void wxComboBox::Cut()
2bda0e17 493{
150e31d2 494 SendMessage(GetHwnd(), WM_CUT, 0, 0L);
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495}
496
1c4a764c 497void wxComboBox::Paste()
2bda0e17 498{
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499 SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
500}
501
502void wxComboBox::Undo()
503{
504 if (CanUndo())
505 {
506 HWND hEditWnd = (HWND) GetEditHWND() ;
507 if ( hEditWnd )
508 ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
509 }
510}
511
512void wxComboBox::Redo()
513{
514 if (CanUndo())
515 {
516 // Same as Undo, since Undo undoes the undo, i.e. a redo.
517 HWND hEditWnd = (HWND) GetEditHWND() ;
518 if ( hEditWnd )
519 ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
520 }
521}
522
523void wxComboBox::SelectAll()
524{
525 SetSelection(0, GetLastPosition());
526}
527
528bool wxComboBox::CanUndo() const
529{
530 HWND hEditWnd = (HWND) GetEditHWND() ;
531 if ( hEditWnd )
532 return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
533 else
534 return false;
535}
536
537bool wxComboBox::CanRedo() const
538{
539 HWND hEditWnd = (HWND) GetEditHWND() ;
540 if ( hEditWnd )
541 return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
542 else
543 return false;
544}
545
546bool wxComboBox::HasSelection() const
547{
548 long from, to;
549 GetSelection(&from, &to);
550 return from != to;
551}
552
553bool wxComboBox::CanCopy() const
554{
555 // Can copy if there's a selection
556 return HasSelection();
557}
558
559bool wxComboBox::CanCut() const
560{
561 return CanCopy() && IsEditable();
562}
563
564bool wxComboBox::CanPaste() const
565{
566 if ( !IsEditable() )
567 return false;
568
569 // Standard edit control: check for straight text on clipboard
570 if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
571 return false;
572
573 bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
574 ::CloseClipboard();
575
576 return isTextAvailable;
577}
578
579bool wxComboBox::IsEditable() const
580{
581 return !HasFlag(wxCB_READONLY);
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582}
583
33ac7e6f 584void wxComboBox::SetEditable(bool WXUNUSED(editable))
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585{
586 // Can't implement in MSW?
4438caf4 587// HWND hWnd = GetHwnd();
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588// SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
589}
590
debe6624 591void wxComboBox::SetInsertionPoint(long pos)
2bda0e17 592{
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593 if ( GetWindowStyle() & wxCB_READONLY )
594 return;
595
2bda0e17 596#ifdef __WIN32__
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597 HWND hWnd = GetHwnd();
598 ::SendMessage(hWnd, CB_SETEDITSEL, 0, MAKELPARAM(pos, pos));
599 HWND hEditWnd = (HWND) GetEditHWND() ;
600 if ( hEditWnd )
601 {
602 // Scroll insertion point into view
603 SendMessage(hEditWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
604 // Why is this necessary? (Copied from wxTextCtrl::SetInsertionPoint)
fda7962d 605 SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM) wxEmptyString);
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606 }
607#endif // __WIN32__
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608}
609
1c4a764c 610void wxComboBox::SetInsertionPointEnd()
2bda0e17 611{
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612 // setting insertion point doesn't make sense for read only comboboxes
613 if ( !(GetWindowStyle() & wxCB_READONLY) )
614 {
615 long pos = GetLastPosition();
616 SetInsertionPoint(pos);
617 }
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618}
619
1c4a764c 620long wxComboBox::GetInsertionPoint() const
2bda0e17 621{
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622#ifdef __WIN32__
623 DWORD Pos=(DWORD)SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
624 return Pos&0xFFFF;
625#else
626 return 0;
627#endif
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628}
629
1c4a764c 630long wxComboBox::GetLastPosition() const
2bda0e17 631{
f7703477 632 HWND hEditWnd = (HWND) GetEditHWND();
4438caf4 633
f7703477 634 // Get number of characters in the last (only) line. We'll add this to the character
2bda0e17 635 // index for the last line, 1st position.
f7703477 636 int lineLength = (int)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L);
2bda0e17 637
f7703477 638 return (long)(lineLength);
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639}
640
debe6624 641void wxComboBox::Replace(long from, long to, const wxString& value)
2bda0e17 642{
47d67540 643#if wxUSE_CLIPBOARD
fddfd9e1 644 Remove(from, to);
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645
646 // Now replace with 'value', by pasting.
837e5743 647 wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
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648
649 // Paste into edit control
fddfd9e1 650 SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L);
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651#endif
652}
653
debe6624 654void wxComboBox::Remove(long from, long to)
2bda0e17 655{
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656 // Set selection and remove it
657 SetSelection(from, to);
658 SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0);
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659}
660
debe6624 661void wxComboBox::SetSelection(long from, long to)
2bda0e17 662{
4438caf4 663 HWND hWnd = GetHwnd();
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664 long fromChar = from;
665 long toChar = to;
666 // if from and to are both -1, it means
77ffb593 667 // (in wxWidgets) that all text should be selected.
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668 // This translates into Windows convention
669 if ((from == -1) && (to == -1))
670 {
671 fromChar = 0;
672 toChar = -1;
673 }
4438caf4 674
3a5bcc4d 675 if ( SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) == CB_ERR )
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676 {
677 wxLogDebug(_T("CB_SETEDITSEL failed"));
678 }
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679}
680
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681void wxComboBox::GetSelection(long* from, long* to) const
682{
683 DWORD dwStart, dwEnd;
684 ::SendMessage(GetHwnd(), CB_GETEDITSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
685
686 *from = dwStart;
687 *to = dwEnd;
688}
689
690int wxComboBox::GetSelection() const
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691{
692 return wxChoice::GetSelection();
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693}
694
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695// ----------------------------------------------------------------------------
696// standard event handling
697// ----------------------------------------------------------------------------
698
699void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
700{
701 Cut();
702}
703
704void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))
705{
706 Copy();
707}
708
709void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
710{
711 Paste();
712}
713
714void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
715{
716 Undo();
717}
718
719void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
720{
721 Redo();
722}
723
724void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
725{
726 long from, to;
727 GetSelection(& from, & to);
728 if (from != -1 && to != -1)
729 Remove(from, to);
730}
731
732void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))
733{
734 SetSelection(-1, -1);
735}
736
737void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)
738{
739 event.Enable( CanCut() );
740}
741
742void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)
743{
744 event.Enable( CanCopy() );
745}
746
747void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
748{
749 event.Enable( CanPaste() );
750}
751
752void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
753{
754 event.Enable( CanUndo() );
755}
756
757void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)
758{
759 event.Enable( CanRedo() );
760}
761
762void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
763{
764 event.Enable(HasSelection() && IsEditable()) ;
765}
766
767void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
768{
769 event.Enable(GetLastPosition() > 0);
770}
771
71e57cd6 772#endif // wxUSE_COMBOBOX
2bda0e17 773