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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: combobox_native.cpp | |
3 | // Purpose: wxComboBox class | |
4 | // Author: Julian Smart, Ian Brown | |
5 | // Modified by: | |
6 | // Created: 01/02/03 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #include "wx/setup.h" | |
13 | ||
14 | #if wxUSE_COMBOBOX | |
15 | ||
16 | #include "wx/combobox.h" | |
17 | ||
18 | #ifdef __VMS__ | |
19 | #pragma message disable nosimpint | |
20 | #endif | |
21 | #include <Xm/Xm.h> | |
22 | #ifdef __VMS__ | |
23 | #pragma message enable nosimpint | |
24 | #endif | |
25 | ||
26 | // use the new, shiny combobox for Motif 2.x | |
27 | #if (XmVersion >= 2000) | |
28 | ||
29 | #ifdef __VMS__ | |
30 | #pragma message disable nosimpint | |
31 | #endif | |
32 | #include <Xm/ComboBox.h> | |
33 | #include <Xm/Text.h> | |
34 | #include <Xm/List.h> | |
35 | #ifdef __VMS__ | |
36 | #pragma message enable nosimpint | |
37 | #endif | |
38 | ||
39 | #include "wx/motif/private.h" | |
40 | ||
41 | // utility | |
42 | static Widget GetXmList( const wxComboBox* cb ) | |
43 | { | |
44 | Widget ret; | |
45 | XtVaGetValues( (Widget)cb->GetMainWidget(), | |
46 | XmNlist, &ret, | |
47 | NULL ); | |
48 | ||
49 | return ret; | |
50 | } | |
51 | ||
52 | static Widget GetXmText( const wxComboBox* cb ) | |
53 | { | |
54 | Widget ret; | |
55 | XtVaGetValues( (Widget)cb->GetMainWidget(), | |
56 | XmNtextField, &ret, | |
57 | NULL ); | |
58 | ||
59 | return ret; | |
60 | } | |
61 | ||
62 | void wxComboBoxCallback (Widget w, XtPointer clientData, | |
63 | XmComboBoxCallbackStruct * cbs); | |
64 | ||
65 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) | |
66 | ||
67 | bool wxComboBox::Create(wxWindow *parent, wxWindowID id, | |
68 | const wxString& value, | |
69 | const wxPoint& pos, | |
70 | const wxSize& size, | |
71 | int n, const wxString choices[], | |
72 | long style, | |
73 | const wxValidator& validator, | |
74 | const wxString& name) | |
75 | { | |
76 | if( !CreateControl( parent, id, pos, size, style, validator, name ) ) | |
77 | return false; | |
78 | ||
79 | Widget parentWidget = (Widget) parent->GetClientWidget(); | |
80 | ||
81 | int cb_type = ( style & wxCB_SIMPLE ) ? XmCOMBO_BOX : | |
82 | ( style & wxCB_READONLY ) ? XmDROP_DOWN_LIST : | |
83 | ( style & wxCB_DROPDOWN ) ? XmDROP_DOWN_COMBO_BOX : | |
84 | // default to wxCB_DROPDOWN | |
85 | XmDROP_DOWN_COMBO_BOX; | |
86 | if( cb_type == XmDROP_DOWN_COMBO_BOX ) | |
87 | SetWindowStyle( style | wxCB_DROPDOWN ); | |
88 | ||
89 | Widget buttonWidget= XtVaCreateManagedWidget(name.c_str(), | |
90 | xmComboBoxWidgetClass, parentWidget, | |
91 | XmNcomboBoxType, cb_type, | |
92 | NULL); | |
93 | ||
94 | m_mainWidget = (Widget) buttonWidget; | |
95 | ||
96 | int i; | |
97 | for ( i = 0; i < n; ++i) | |
98 | Append( choices[i] ); | |
99 | ||
100 | XtManageChild (buttonWidget); | |
101 | ||
102 | SetValue(value); | |
103 | ||
104 | ChangeFont(false); | |
105 | ||
106 | XtAddCallback (buttonWidget, XmNselectionCallback, | |
107 | (XtCallbackProc) wxComboBoxCallback, | |
108 | (XtPointer) this); | |
109 | XtAddCallback (GetXmText(this), XmNvalueChangedCallback, | |
110 | (XtCallbackProc) wxComboBoxCallback, | |
111 | (XtPointer) this); | |
112 | ||
113 | wxSize best = GetBestSize(); | |
114 | if( size.x != -1 ) best.x = size.x; | |
115 | if( size.y != -1 ) best.y = size.y; | |
116 | ||
117 | AttachWidget (parent, m_mainWidget, (WXWidget) NULL, | |
118 | pos.x, pos.y, best.x, best.y); | |
119 | ||
120 | ChangeBackgroundColour(); | |
121 | ||
122 | return true; | |
123 | } | |
124 | ||
125 | void wxComboBox::AdjustDropDownListSize() | |
126 | { | |
127 | int newListCount = -1, itemCount = GetCount(); | |
128 | const int MAX = 12; | |
129 | ||
130 | if( !itemCount ) | |
131 | newListCount = 1; | |
132 | else if( itemCount < MAX ) | |
133 | newListCount = itemCount; | |
134 | else | |
135 | newListCount = MAX; | |
136 | ||
137 | XtVaSetValues( GetXmList(this), | |
138 | XmNvisibleItemCount, newListCount, | |
139 | NULL ); | |
140 | } | |
141 | ||
142 | wxComboBox::~wxComboBox() | |
143 | { | |
144 | DetachWidget((Widget) m_mainWidget); // Removes event handlers | |
145 | XtDestroyWidget((Widget) m_mainWidget); | |
146 | m_mainWidget = (WXWidget) 0; | |
147 | if ( HasClientObjectData() ) | |
148 | m_clientDataDict.DestroyData(); | |
149 | } | |
150 | ||
151 | void wxComboBox::DoSetSize(int x, int y, int width, int height, int sizeFlags) | |
152 | { | |
153 | // Necessary so it doesn't call wxChoice::SetSize | |
154 | wxWindow::DoSetSize(x, y, width, DoGetBestSize().y, sizeFlags); | |
155 | } | |
156 | ||
157 | wxString wxComboBox::GetValue() const | |
158 | { | |
159 | char* s = XmTextGetString (GetXmText (this)); | |
160 | wxString str(s); | |
161 | if (s) | |
162 | XtFree (s); | |
163 | return str; | |
164 | } | |
165 | ||
166 | void wxComboBox::SetString(int n, const wxString& s) | |
167 | { | |
168 | wxXmString text(s); | |
169 | Widget listBox = GetXmList(this); | |
170 | ||
171 | // delete the item and add it again. | |
172 | // FIXME isn't there a way to change it in place? | |
173 | XmListDeletePos (listBox, n+1); | |
174 | XmListAddItem (listBox, text(), n+1); | |
175 | } | |
176 | ||
177 | void wxComboBox::SetValue(const wxString& value) | |
178 | { | |
179 | m_inSetValue = true; | |
180 | ||
181 | // Fix crash; probably an OpenMotif bug | |
182 | const char* val = value.c_str() ? value.c_str() : ""; | |
183 | XtVaSetValues( GetXmText(this), | |
184 | XmNvalue, wxConstCast(val, char), | |
185 | NULL); | |
186 | ||
187 | m_inSetValue = false; | |
188 | } | |
189 | ||
190 | int wxComboBox::DoAppend(const wxString& item) | |
191 | { | |
192 | wxXmString str( item.c_str() ); | |
193 | XmComboBoxAddItem((Widget) m_mainWidget, str(), 0, False); | |
194 | m_noStrings ++; | |
195 | AdjustDropDownListSize(); | |
196 | ||
197 | return GetCount() - 1; | |
198 | } | |
199 | ||
200 | int wxComboBox::DoInsert(const wxString& item, int pos) | |
201 | { | |
202 | wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list")); | |
203 | wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index")); | |
204 | ||
205 | if (pos == GetCount()) | |
206 | return DoAppend(item); | |
207 | ||
208 | wxXmString str( item.c_str() ); | |
209 | XmComboBoxAddItem((Widget) m_mainWidget, str(), pos+1, False); | |
210 | m_noStrings ++; | |
211 | AdjustDropDownListSize(); | |
212 | ||
213 | return GetCount() - 1; | |
214 | } | |
215 | ||
216 | void wxComboBox::Delete(int n) | |
217 | { | |
218 | #ifdef LESSTIF_VERSION | |
219 | XmListDeletePos (GetXmList(this), n + 1); | |
220 | #else | |
221 | XmComboBoxDeletePos((Widget) m_mainWidget, n+1); | |
222 | #endif | |
223 | ||
224 | m_clientDataDict.Delete(n, HasClientObjectData()); | |
225 | m_noStrings--; | |
226 | ||
227 | AdjustDropDownListSize(); | |
228 | } | |
229 | ||
230 | void wxComboBox::Clear() | |
231 | { | |
232 | #ifdef LESSTIF_VERSION | |
233 | XmListDeleteAllItems (GetXmList(this)); | |
234 | #else | |
235 | while(m_noStrings > 0) | |
236 | { | |
237 | XmComboBoxDeletePos((Widget) m_mainWidget, m_noStrings--); | |
238 | } | |
239 | #endif | |
240 | ||
241 | if ( HasClientObjectData() ) | |
242 | m_clientDataDict.DestroyData(); | |
243 | m_noStrings = 0; | |
244 | AdjustDropDownListSize(); | |
245 | } | |
246 | ||
247 | void wxComboBox::SetSelection (int n) | |
248 | { | |
249 | m_inSetSelection = true; | |
250 | ||
251 | #if wxCHECK_LESSTIF() | |
252 | XmListSelectPos (GetXmList(this), n + 1, false); | |
253 | SetValue(GetString(n)); | |
254 | #else | |
255 | #if 0 | |
256 | wxXmString str( GetString(n).c_str() ); | |
257 | XmComboBoxSelectItem((Widget) m_mainWidget, str()); | |
258 | #endif | |
259 | XtVaSetValues( (Widget)m_mainWidget, | |
260 | XmNselectedPosition, n, | |
261 | NULL ); | |
262 | #endif | |
263 | ||
264 | m_inSetSelection = false; | |
265 | } | |
266 | ||
267 | int wxComboBox::GetSelection (void) const | |
268 | { | |
269 | return wxDoGetSelectionInList( GetXmList( this ) ); | |
270 | } | |
271 | ||
272 | wxString wxComboBox::GetString(int n) const | |
273 | { | |
274 | return wxDoGetStringInList( GetXmList(this), n ); | |
275 | } | |
276 | ||
277 | int wxComboBox::FindString(const wxString& s) const | |
278 | { | |
279 | return wxDoFindStringInList( GetXmList( this ), s ); | |
280 | } | |
281 | ||
282 | // Clipboard operations | |
283 | void wxComboBox::Copy() | |
284 | { | |
285 | XmTextCopy( GetXmText(this), CurrentTime ); | |
286 | } | |
287 | ||
288 | void wxComboBox::Cut() | |
289 | { | |
290 | XmTextCut( GetXmText(this), CurrentTime ); | |
291 | } | |
292 | ||
293 | void wxComboBox::Paste() | |
294 | { | |
295 | XmTextPaste( GetXmText(this) ); | |
296 | } | |
297 | ||
298 | void wxComboBox::SetEditable(bool WXUNUSED(editable)) | |
299 | { | |
300 | // TODO | |
301 | } | |
302 | ||
303 | void wxComboBox::SetInsertionPoint(long pos) | |
304 | { | |
305 | XmTextSetInsertionPosition( GetXmText(this), (XmTextPosition)pos ); | |
306 | } | |
307 | ||
308 | void wxComboBox::SetInsertionPointEnd() | |
309 | { | |
310 | SetInsertionPoint( GetLastPosition() ); | |
311 | } | |
312 | ||
313 | long wxComboBox::GetInsertionPoint() const | |
314 | { | |
315 | return (long)XmTextGetInsertionPosition( GetXmText(this) ); | |
316 | } | |
317 | ||
318 | long wxComboBox::GetLastPosition() const | |
319 | { | |
320 | XmTextPosition pos = XmTextGetLastPosition( GetXmText(this) ); | |
321 | return (long)pos; | |
322 | } | |
323 | ||
324 | void wxComboBox::Replace(long from, long to, const wxString& value) | |
325 | { | |
326 | XmTextReplace( GetXmText(this), (XmTextPosition)from, (XmTextPosition)to, | |
327 | wxConstCast(value.c_str(), char) ); | |
328 | } | |
329 | ||
330 | void wxComboBox::Remove(long from, long to) | |
331 | { | |
332 | SetSelection( from, to ); | |
333 | XmTextRemove( GetXmText(this) ); | |
334 | } | |
335 | ||
336 | void wxComboBox::SetSelection(long from, long to) | |
337 | { | |
338 | if( to == -1 ) | |
339 | to = GetLastPosition(); | |
340 | ||
341 | XmTextSetSelection( GetXmText(this), (XmTextPosition)from, | |
342 | (XmTextPosition)to, (Time)0 ); | |
343 | } | |
344 | ||
345 | void wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData, | |
346 | XmComboBoxCallbackStruct * cbs) | |
347 | { | |
348 | wxComboBox *item = (wxComboBox *) clientData; | |
349 | ||
350 | if( item->m_inSetSelection ) return; | |
351 | ||
352 | switch (cbs->reason) | |
353 | { | |
354 | case XmCR_SELECT: | |
355 | #if 0 | |
356 | case XmCR_SINGLE_SELECT: | |
357 | case XmCR_BROWSE_SELECT: | |
358 | #endif | |
359 | { | |
360 | wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED, | |
361 | item->GetId()); | |
362 | int idx = cbs->item_position; | |
363 | event.m_commandInt = idx; | |
364 | event.m_commandString = item->GetString (idx); | |
365 | if ( item->HasClientObjectData() ) | |
366 | event.SetClientObject( item->GetClientObject(idx) ); | |
367 | else if ( item->HasClientUntypedData() ) | |
368 | event.SetClientData( item->GetClientData(idx) ); | |
369 | event.m_extraLong = true; | |
370 | event.SetEventObject(item); | |
371 | item->GetEventHandler()->ProcessEvent(event); | |
372 | break; | |
373 | } | |
374 | case XmCR_VALUE_CHANGED: | |
375 | { | |
376 | wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId()); | |
377 | event.m_commandInt = -1; | |
378 | event.m_commandString = item->GetValue(); | |
379 | event.m_extraLong = true; | |
380 | event.SetEventObject(item); | |
381 | item->GetEventHandler()->ProcessEvent(event); | |
382 | break; | |
383 | } | |
384 | default: | |
385 | break; | |
386 | } | |
387 | } | |
388 | ||
389 | void wxComboBox::ChangeFont(bool keepOriginalSize) | |
390 | { | |
391 | if( m_font.Ok() ) | |
392 | { | |
393 | wxDoChangeFont( GetXmText(this), m_font ); | |
394 | wxDoChangeFont( GetXmList(this), m_font ); | |
395 | } | |
396 | ||
397 | // Don't use the base class wxChoice's ChangeFont | |
398 | wxWindow::ChangeFont(keepOriginalSize); | |
399 | } | |
400 | ||
401 | void wxComboBox::ChangeBackgroundColour() | |
402 | { | |
403 | wxWindow::ChangeBackgroundColour(); | |
404 | } | |
405 | ||
406 | void wxComboBox::ChangeForegroundColour() | |
407 | { | |
408 | wxWindow::ChangeForegroundColour(); | |
409 | } | |
410 | ||
411 | wxSize wxComboBox::DoGetBestSize() const | |
412 | { | |
413 | if( (GetWindowStyle() & wxCB_DROPDOWN) == wxCB_DROPDOWN || | |
414 | (GetWindowStyle() & wxCB_READONLY) == wxCB_READONLY ) | |
415 | { | |
416 | Dimension arrowW, arrowS, highlight, xmargin, ymargin, shadow; | |
417 | ||
418 | XtVaGetValues( (Widget)m_mainWidget, | |
419 | XmNarrowSize, &arrowW, | |
420 | XmNarrowSpacing, &arrowS, | |
421 | XmNhighlightThickness, &highlight, | |
422 | XmNmarginWidth, &xmargin, | |
423 | XmNmarginHeight, &ymargin, | |
424 | XmNshadowThickness, &shadow, | |
425 | NULL ); | |
426 | ||
427 | wxSize listSize = wxDoGetListBoxBestSize( GetXmList(this), this ); | |
428 | wxSize textSize = wxDoGetSingleTextCtrlBestSize( GetXmText(this), | |
429 | this ); | |
430 | ||
431 | // FIXME arbitrary constants | |
432 | return wxSize( listSize.x + arrowW + arrowS + 2 * highlight | |
433 | + 2 * shadow + 2 * xmargin , | |
434 | textSize.y + 2 * highlight + 2 * ymargin + 2 * shadow ); | |
435 | } | |
436 | else | |
437 | return wxWindow::DoGetBestSize(); | |
438 | } | |
439 | ||
440 | #endif // XmVersion >= 2000 | |
441 | ||
442 | #endif // wxUSE_COMBOBOX |