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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: combobox.cpp
3 // Purpose: wxComboBox class
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifdef __GNUG__
13 #pragma implementation "combobox.h"
14 #endif
15
16 #include "wx/combobox.h"
17
18 #if wxUSE_COMBOBOX
19
20 #ifdef __VMS__
21 #pragma message disable nosimpint
22 #endif
23 #include <Xm/Xm.h>
24 #ifdef __VMS__
25 #pragma message enable nosimpint
26 #endif
27 #include "xmcombo/xmcombo.h"
28
29 #include "wx/motif/private.h"
30
31 void wxComboBoxCallback (Widget w, XtPointer clientData,
32 XmComboBoxSelectionCallbackStruct * cbs);
33
34 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
35
36 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
37 const wxString& value,
38 const wxPoint& pos,
39 const wxSize& size,
40 int n, const wxString choices[],
41 long style,
42 const wxValidator& validator,
43 const wxString& name)
44 {
45 if( !CreateControl( parent, id, pos, size, style, validator, name ) )
46 return FALSE;
47
48 m_noStrings = n;
49
50 Widget parentWidget = (Widget) parent->GetClientWidget();
51
52 Widget buttonWidget = XtVaCreateManagedWidget(name.c_str(),
53 xmComboBoxWidgetClass, parentWidget,
54 XmNmarginHeight, 0,
55 XmNmarginWidth, 0,
56 XmNshowLabel, False,
57 XmNeditable, ((style & wxCB_READONLY) != wxCB_READONLY),
58 XmNsorted, ((style & wxCB_SORT) == wxCB_SORT),
59 XmNstaticList, ((style & wxCB_SIMPLE) == wxCB_SIMPLE),
60 NULL);
61
62 int i;
63 for (i = 0; i < n; i++)
64 {
65 wxXmString str( choices[i] );
66 XmComboBoxAddItem(buttonWidget, str(), 0);
67 m_stringList.Add(choices[i]);
68 }
69
70 m_mainWidget = (Widget) buttonWidget;
71
72 XtManageChild (buttonWidget);
73
74 SetValue(value);
75
76 ChangeFont(FALSE);
77
78 XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback,
79 (XtPointer) this);
80 XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback,
81 (XtPointer) this);
82
83 SetCanAddEventHandler(TRUE);
84 AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
85
86 ChangeBackgroundColour();
87
88 return TRUE;
89 }
90
91 wxComboBox::~wxComboBox()
92 {
93 DetachWidget((Widget) m_mainWidget); // Removes event handlers
94 XtDestroyWidget((Widget) m_mainWidget);
95 m_mainWidget = (WXWidget) 0;
96 if ( HasClientObjectData() )
97 m_clientDataDict.DestroyData();
98 }
99
100 void wxComboBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
101 {
102 // Necessary so it doesn't call wxChoice::SetSize
103 wxWindow::DoSetSize(x, y, width, DoGetBestSize().y, sizeFlags);
104 }
105
106 wxString wxComboBox::GetValue() const
107 {
108 char *s = XmComboBoxGetString ((Widget) m_mainWidget);
109 if (s)
110 {
111 wxString str(s);
112 XtFree (s);
113 return str;
114 }
115 else
116 return wxEmptyString;
117 }
118
119 void wxComboBox::SetValue(const wxString& value)
120 {
121 m_inSetValue = TRUE;
122 if( !value.empty() )
123 XmComboBoxSetString( (Widget)m_mainWidget, (char*)value.c_str() );
124 m_inSetValue = FALSE;
125 }
126
127 int wxComboBox::DoAppend(const wxString& item)
128 {
129 wxXmString str( item.c_str() );
130 XmComboBoxAddItem((Widget) m_mainWidget, str(), 0);
131 m_stringList.Add(item);
132 m_noStrings ++;
133
134 return GetCount() - 1;
135 }
136
137 void wxComboBox::Delete(int n)
138 {
139 XmComboBoxDeletePos((Widget) m_mainWidget, n+1);
140 wxNode *node = m_stringList.Nth(n);
141 if (node)
142 {
143 delete[] (char *)node->Data();
144 delete node;
145 }
146 m_clientDataDict.Delete(n, HasClientObjectData());
147 m_noStrings--;
148 }
149
150 void wxComboBox::Clear()
151 {
152 XmComboBoxDeleteAllItems((Widget) m_mainWidget);
153 m_stringList.Clear();
154
155 if ( HasClientObjectData() )
156 m_clientDataDict.DestroyData();
157 m_noStrings = 0;
158 }
159
160 void wxComboBox::SetSelection (int n)
161 {
162 XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
163 }
164
165 int wxComboBox::GetSelection (void) const
166 {
167 int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
168 if (sel == 0)
169 return -1;
170 else
171 return sel - 1;
172 }
173
174 wxString wxComboBox::GetString(int n) const
175 {
176 wxNode *node = m_stringList.Nth(n);
177 if (node)
178 return wxString((char *) node->Data ());
179 else
180 return wxEmptyString;
181 }
182
183 int wxComboBox::FindString(const wxString& s) const
184 {
185 int *pos_list = NULL;
186 int count = 0;
187 wxXmString text( s );
188 bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
189 text(), &pos_list, &count) != 0);
190
191 if (found && count > 0)
192 {
193 int pos = pos_list[0] - 1;
194 free(pos_list);
195 return pos;
196 }
197
198 return -1;
199 }
200
201 // Clipboard operations
202 void wxComboBox::Copy()
203 {
204 XmComboBoxCopy((Widget) m_mainWidget, CurrentTime);
205 }
206
207 void wxComboBox::Cut()
208 {
209 XmComboBoxCut((Widget) m_mainWidget, CurrentTime);
210 }
211
212 void wxComboBox::Paste()
213 {
214 XmComboBoxPaste((Widget) m_mainWidget);
215 }
216
217 void wxComboBox::SetEditable(bool WXUNUSED(editable))
218 {
219 // TODO
220 }
221
222 void wxComboBox::SetInsertionPoint(long pos)
223 {
224 XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
225 }
226
227 void wxComboBox::SetInsertionPointEnd()
228 {
229 XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget);
230 XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1));
231 }
232
233 long wxComboBox::GetInsertionPoint() const
234 {
235 return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget);
236 }
237
238 long wxComboBox::GetLastPosition() const
239 {
240 return (long) XmComboBoxGetLastPosition ((Widget) m_mainWidget);
241 }
242
243 void wxComboBox::Replace(long from, long to, const wxString& value)
244 {
245 XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
246 (char*) (const char*) value);
247 }
248
249 void wxComboBox::Remove(long from, long to)
250 {
251 XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
252 (Time) 0);
253 XmComboBoxRemove ((Widget) m_mainWidget);
254 }
255
256 void wxComboBox::SetSelection(long from, long to)
257 {
258 XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
259 (Time) 0);
260 }
261
262 void wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
263 XmComboBoxSelectionCallbackStruct * cbs)
264 {
265 wxComboBox *item = (wxComboBox *) clientData;
266
267 switch (cbs->reason)
268 {
269 case XmCR_SINGLE_SELECT:
270 case XmCR_BROWSE_SELECT:
271 {
272 wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED, item->GetId());
273 event.m_commandInt = cbs->index - 1;
274 event.m_commandString = item->GetString (event.m_commandInt);
275 if ( item->HasClientObjectData() )
276 event.SetClientObject( item->GetClientObject(cbs->index - 1) );
277 else if ( item->HasClientUntypedData() )
278 event.SetClientData( item->GetClientData(cbs->index - 1) );
279 event.m_extraLong = TRUE;
280 event.SetEventObject(item);
281 item->ProcessCommand (event);
282 break;
283 }
284 case XmCR_VALUE_CHANGED:
285 {
286 wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId());
287 event.m_commandInt = -1;
288 event.m_commandString = item->GetValue();
289 event.m_extraLong = TRUE;
290 event.SetEventObject(item);
291 item->ProcessCommand (event);
292 break;
293 }
294 default:
295 break;
296 }
297 }
298
299 void wxComboBox::ChangeFont(bool keepOriginalSize)
300 {
301 // Don't use the base class wxChoice's ChangeFont
302 wxWindow::ChangeFont(keepOriginalSize);
303 }
304
305 void wxComboBox::ChangeBackgroundColour()
306 {
307 wxWindow::ChangeBackgroundColour();
308 }
309
310 void wxComboBox::ChangeForegroundColour()
311 {
312 wxWindow::ChangeForegroundColour();
313 }
314
315 wxSize wxComboBox::DoGetBestSize() const
316 {
317 if( (GetWindowStyle() & wxCB_DROPDOWN) == wxCB_DROPDOWN ||
318 (GetWindowStyle() & wxCB_READONLY) == wxCB_READONLY )
319 {
320 wxSize items = GetItemsSize();
321 // FIXME arbitrary constants
322 return wxSize( ( items.x ? items.x + 50 : 120 ),
323 items.y + 10 );
324 }
325 else
326 return wxWindow::DoGetBestSize();
327 }
328
329 #endif
330