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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: combobox.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "combobox.h" | |
12 | #endif | |
13 | ||
14 | ||
15 | #include "wx/combobox.h" | |
16 | ||
17 | #include <wx/intl.h> | |
18 | ||
19 | #include "gdk/gdk.h" | |
20 | #include "gtk/gtk.h" | |
21 | ||
22 | //----------------------------------------------------------------------------- | |
23 | // data | |
24 | //----------------------------------------------------------------------------- | |
25 | ||
26 | extern bool g_blockEventsOnDrag; | |
27 | ||
28 | //----------------------------------------------------------------------------- | |
29 | // "select" | |
30 | //----------------------------------------------------------------------------- | |
31 | ||
32 | static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) | |
33 | { | |
34 | if (!combo->HasVMT()) return; | |
35 | if (g_blockEventsOnDrag) return; | |
36 | ||
37 | if (combo->m_alreadySent) | |
38 | { | |
39 | combo->m_alreadySent = FALSE; | |
40 | return; | |
41 | } | |
42 | ||
43 | combo->m_alreadySent = TRUE; | |
44 | ||
45 | wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId()); | |
46 | event.SetInt( combo->GetSelection() ); | |
47 | wxString tmp( combo->GetStringSelection() ); | |
48 | event.SetString( WXSTRINGCAST(tmp) ); | |
49 | event.SetEventObject(combo); | |
50 | combo->GetEventHandler()->ProcessEvent(event); | |
51 | } | |
52 | ||
53 | //----------------------------------------------------------------------------- | |
54 | // "changed" | |
55 | //----------------------------------------------------------------------------- | |
56 | ||
57 | static void | |
58 | gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) | |
59 | { | |
60 | wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->m_windowId ); | |
61 | event.SetString( copystring(combo->GetValue()) ); | |
62 | event.SetEventObject( combo ); | |
63 | combo->GetEventHandler()->ProcessEvent( event ); | |
64 | delete[] event.GetString(); | |
65 | } | |
66 | ||
67 | //----------------------------------------------------------------------------- | |
68 | // wxComboBox | |
69 | //----------------------------------------------------------------------------- | |
70 | ||
71 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl) | |
72 | ||
73 | BEGIN_EVENT_TABLE(wxComboBox, wxControl) | |
74 | EVT_SIZE(wxComboBox::OnSize) | |
75 | END_EVENT_TABLE() | |
76 | ||
77 | bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value, | |
78 | const wxPoint& pos, const wxSize& size, | |
79 | int n, const wxString choices[], | |
80 | long style, const wxValidator& validator, | |
81 | const wxString& name ) | |
82 | { | |
83 | m_alreadySent = FALSE; | |
84 | m_needParent = TRUE; | |
85 | m_acceptsFocus = TRUE; | |
86 | ||
87 | PreCreation( parent, id, pos, size, style, name ); | |
88 | ||
89 | SetValidator( validator ); | |
90 | ||
91 | m_widget = gtk_combo_new(); | |
92 | ||
93 | wxSize newSize = size; | |
94 | if (newSize.x == -1) newSize.x = 100; | |
95 | if (newSize.y == -1) newSize.y = 26; | |
96 | SetSize( newSize.x, newSize.y ); | |
97 | ||
98 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
99 | ||
100 | for (int i = 0; i < n; i++) | |
101 | { | |
102 | GtkWidget *list_item = gtk_list_item_new_with_label( choices[i] ); | |
103 | ||
104 | m_clientDataList.Append( (wxObject*)NULL ); | |
105 | m_clientObjectList.Append( (wxObject*)NULL ); | |
106 | ||
107 | gtk_container_add( GTK_CONTAINER(list), list_item ); | |
108 | ||
109 | gtk_widget_realize( list_item ); | |
110 | gtk_widget_realize( GTK_BIN(list_item)->child ); | |
111 | ||
112 | gtk_widget_show( list_item ); | |
113 | ||
114 | gtk_signal_connect( GTK_OBJECT(list_item), "select", | |
115 | GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this ); | |
116 | } | |
117 | ||
118 | m_parent->AddChild( this ); | |
119 | ||
120 | (m_parent->m_insertCallback)( m_parent, this ); | |
121 | ||
122 | PostCreation(); | |
123 | ||
124 | ConnectWidget( GTK_COMBO(m_widget)->button ); | |
125 | ||
126 | if (!value.IsNull()) SetValue( value ); | |
127 | ||
128 | gtk_widget_realize( GTK_COMBO(m_widget)->list ); | |
129 | gtk_widget_realize( GTK_COMBO(m_widget)->entry ); | |
130 | gtk_widget_realize( GTK_COMBO(m_widget)->button ); | |
131 | ||
132 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed", | |
133 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this); | |
134 | ||
135 | SetBackgroundColour( parent->GetBackgroundColour() ); | |
136 | SetForegroundColour( parent->GetForegroundColour() ); | |
137 | ||
138 | Show( TRUE ); | |
139 | ||
140 | return TRUE; | |
141 | } | |
142 | ||
143 | wxComboBox::~wxComboBox() | |
144 | { | |
145 | wxNode *node = m_clientDataList.First(); | |
146 | while (node) | |
147 | { | |
148 | wxClientData *cd = (wxClientData*)node->Data(); | |
149 | if (cd) delete cd; | |
150 | node = node->Next(); | |
151 | } | |
152 | m_clientDataList.Clear(); | |
153 | } | |
154 | ||
155 | void wxComboBox::AppendCommon( const wxString &item ) | |
156 | { | |
157 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
158 | ||
159 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
160 | ||
161 | GtkWidget *list_item = gtk_list_item_new_with_label( item ); | |
162 | ||
163 | gtk_signal_connect( GTK_OBJECT(list_item), "select", | |
164 | GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this ); | |
165 | ||
166 | gtk_container_add( GTK_CONTAINER(list), list_item ); | |
167 | ||
168 | if (m_widgetStyle) ApplyWidgetStyle(); | |
169 | ||
170 | gtk_widget_show( list_item ); | |
171 | } | |
172 | ||
173 | void wxComboBox::Append( const wxString &item ) | |
174 | { | |
175 | m_clientDataList.Append( (wxObject*) NULL ); | |
176 | m_clientObjectList.Append( (wxObject*) NULL ); | |
177 | ||
178 | AppendCommon( item ); | |
179 | } | |
180 | ||
181 | void wxComboBox::Append( const wxString &item, void *clientData ) | |
182 | { | |
183 | m_clientDataList.Append( (wxObject*) clientData ); | |
184 | m_clientObjectList.Append( (wxObject*)NULL ); | |
185 | ||
186 | AppendCommon( item ); | |
187 | } | |
188 | ||
189 | void wxComboBox::Append( const wxString &item, wxClientData *clientData ) | |
190 | { | |
191 | m_clientDataList.Append( (wxObject*) NULL ); | |
192 | m_clientObjectList.Append( (wxObject*) clientData ); | |
193 | ||
194 | AppendCommon( item ); | |
195 | } | |
196 | ||
197 | void wxComboBox::SetClientData( int n, void* clientData ) | |
198 | { | |
199 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
200 | ||
201 | wxNode *node = m_clientDataList.Nth( n ); | |
202 | if (!node) return; | |
203 | ||
204 | node->SetData( (wxObject*) clientData ); | |
205 | } | |
206 | ||
207 | void* wxComboBox::GetClientData( int n ) | |
208 | { | |
209 | wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" ); | |
210 | ||
211 | wxNode *node = m_clientDataList.Nth( n ); | |
212 | if (!node) return NULL; | |
213 | ||
214 | return node->Data(); | |
215 | } | |
216 | ||
217 | void wxComboBox::SetClientObject( int n, wxClientData* clientData ) | |
218 | { | |
219 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
220 | ||
221 | wxNode *node = m_clientObjectList.Nth( n ); | |
222 | if (!node) return; | |
223 | ||
224 | wxClientData *cd = (wxClientData*) node->Data(); | |
225 | if (cd) delete cd; | |
226 | ||
227 | node->SetData( (wxObject*) clientData ); | |
228 | } | |
229 | ||
230 | wxClientData* wxComboBox::GetClientObject( int n ) | |
231 | { | |
232 | wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, "invalid combobox" ); | |
233 | ||
234 | wxNode *node = m_clientDataList.Nth( n ); | |
235 | if (!node) return (wxClientData*) NULL; | |
236 | ||
237 | return (wxClientData*) node->Data(); | |
238 | } | |
239 | ||
240 | void wxComboBox::Clear() | |
241 | { | |
242 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
243 | ||
244 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
245 | gtk_list_clear_items( GTK_LIST(list), 0, Number() ); | |
246 | ||
247 | wxNode *node = m_clientObjectList.First(); | |
248 | while (node) | |
249 | { | |
250 | wxClientData *cd = (wxClientData*)node->Data(); | |
251 | if (cd) delete cd; | |
252 | node = node->Next(); | |
253 | } | |
254 | m_clientObjectList.Clear(); | |
255 | ||
256 | m_clientDataList.Clear(); | |
257 | } | |
258 | ||
259 | void wxComboBox::Delete( int n ) | |
260 | { | |
261 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
262 | ||
263 | GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list ); | |
264 | ||
265 | GList *child = g_list_nth( listbox->children, n ); | |
266 | ||
267 | if (!child) | |
268 | { | |
269 | wxFAIL_MSG("wrong index"); | |
270 | return; | |
271 | } | |
272 | ||
273 | GList *list = g_list_append( (GList*) NULL, child->data ); | |
274 | gtk_list_remove_items( listbox, list ); | |
275 | g_list_free( list ); | |
276 | ||
277 | wxNode *node = m_clientObjectList.Nth( n ); | |
278 | if (node) | |
279 | { | |
280 | wxClientData *cd = (wxClientData*)node->Data(); | |
281 | if (cd) delete cd; | |
282 | m_clientObjectList.DeleteNode( node ); | |
283 | } | |
284 | ||
285 | node = m_clientDataList.Nth( n ); | |
286 | if (node) | |
287 | { | |
288 | m_clientDataList.DeleteNode( node ); | |
289 | } | |
290 | } | |
291 | ||
292 | int wxComboBox::FindString( const wxString &item ) | |
293 | { | |
294 | wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" ); | |
295 | ||
296 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
297 | ||
298 | GList *child = GTK_LIST(list)->children; | |
299 | int count = 0; | |
300 | while (child) | |
301 | { | |
302 | GtkBin *bin = GTK_BIN( child->data ); | |
303 | GtkLabel *label = GTK_LABEL( bin->child ); | |
304 | if (item == label->label) return count; | |
305 | count++; | |
306 | child = child->next; | |
307 | } | |
308 | ||
309 | wxFAIL_MSG( "wxComboBox: string not found" ); | |
310 | ||
311 | return -1; | |
312 | } | |
313 | ||
314 | int wxComboBox::GetSelection() const | |
315 | { | |
316 | wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" ); | |
317 | ||
318 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
319 | ||
320 | GList *selection = GTK_LIST(list)->selection; | |
321 | if (selection) | |
322 | { | |
323 | GList *child = GTK_LIST(list)->children; | |
324 | int count = 0; | |
325 | while (child) | |
326 | { | |
327 | if (child->data == selection->data) return count; | |
328 | count++; | |
329 | child = child->next; | |
330 | } | |
331 | } | |
332 | ||
333 | wxFAIL_MSG( "wxComboBox: no selection" ); | |
334 | ||
335 | return -1; | |
336 | } | |
337 | ||
338 | wxString wxComboBox::GetString( int n ) const | |
339 | { | |
340 | wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" ); | |
341 | ||
342 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
343 | ||
344 | GList *child = g_list_nth( GTK_LIST(list)->children, n ); | |
345 | if (child) | |
346 | { | |
347 | GtkBin *bin = GTK_BIN( child->data ); | |
348 | GtkLabel *label = GTK_LABEL( bin->child ); | |
349 | return label->label; | |
350 | } | |
351 | ||
352 | wxFAIL_MSG( "wxComboBox: wrong index" ); | |
353 | ||
354 | return ""; | |
355 | } | |
356 | ||
357 | wxString wxComboBox::GetStringSelection() const | |
358 | { | |
359 | wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" ); | |
360 | ||
361 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
362 | ||
363 | GList *selection = GTK_LIST(list)->selection; | |
364 | if (selection) | |
365 | { | |
366 | GtkBin *bin = GTK_BIN( selection->data ); | |
367 | wxString tmp = GTK_LABEL( bin->child )->label; | |
368 | return tmp; | |
369 | } | |
370 | ||
371 | wxFAIL_MSG( "wxComboBox: no selection" ); | |
372 | ||
373 | return ""; | |
374 | } | |
375 | ||
376 | int wxComboBox::Number() const | |
377 | { | |
378 | wxCHECK_MSG( m_widget != NULL, 0, "invalid combobox" ); | |
379 | ||
380 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
381 | ||
382 | GList *child = GTK_LIST(list)->children; | |
383 | int count = 0; | |
384 | while (child) { count++; child = child->next; } | |
385 | return count; | |
386 | } | |
387 | ||
388 | void wxComboBox::SetSelection( int n ) | |
389 | { | |
390 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
391 | ||
392 | GtkWidget *list = GTK_COMBO(m_widget)->list; | |
393 | gtk_list_select_item( GTK_LIST(list), n ); | |
394 | } | |
395 | ||
396 | void wxComboBox::SetStringSelection( const wxString &string ) | |
397 | { | |
398 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
399 | ||
400 | int res = FindString( string ); | |
401 | if (res == -1) return; | |
402 | SetSelection( res ); | |
403 | } | |
404 | ||
405 | wxString wxComboBox::GetValue() const | |
406 | { | |
407 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
408 | wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) ); | |
409 | return tmp; | |
410 | } | |
411 | ||
412 | void wxComboBox::SetValue( const wxString& value ) | |
413 | { | |
414 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
415 | ||
416 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
417 | wxString tmp = ""; | |
418 | if (!value.IsNull()) tmp = value; | |
419 | gtk_entry_set_text( GTK_ENTRY(entry), tmp ); | |
420 | } | |
421 | ||
422 | void wxComboBox::Copy() | |
423 | { | |
424 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
425 | ||
426 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
427 | #if (GTK_MINOR_VERSION == 1) | |
428 | gtk_editable_copy_clipboard( GTK_EDITABLE(entry) ); | |
429 | #else | |
430 | gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 ); | |
431 | #endif | |
432 | } | |
433 | ||
434 | void wxComboBox::Cut() | |
435 | { | |
436 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
437 | ||
438 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
439 | #if (GTK_MINOR_VERSION == 1) | |
440 | gtk_editable_cut_clipboard( GTK_EDITABLE(entry) ); | |
441 | #else | |
442 | gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 ); | |
443 | #endif | |
444 | } | |
445 | ||
446 | void wxComboBox::Paste() | |
447 | { | |
448 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
449 | ||
450 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
451 | #if (GTK_MINOR_VERSION == 1) | |
452 | gtk_editable_paste_clipboard( GTK_EDITABLE(entry) ); | |
453 | #else | |
454 | gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 ); | |
455 | #endif | |
456 | } | |
457 | ||
458 | void wxComboBox::SetInsertionPoint( long pos ) | |
459 | { | |
460 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
461 | ||
462 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
463 | gtk_entry_set_position( GTK_ENTRY(entry), (int)pos ); | |
464 | } | |
465 | ||
466 | void wxComboBox::SetInsertionPointEnd() | |
467 | { | |
468 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
469 | ||
470 | SetInsertionPoint( -1 ); | |
471 | } | |
472 | ||
473 | long wxComboBox::GetInsertionPoint() const | |
474 | { | |
475 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
476 | return (long) GTK_EDITABLE(entry)->current_pos; | |
477 | } | |
478 | ||
479 | long wxComboBox::GetLastPosition() const | |
480 | { | |
481 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
482 | int pos = GTK_ENTRY(entry)->text_length; | |
483 | return (long) pos-1; | |
484 | } | |
485 | ||
486 | void wxComboBox::Replace( long from, long to, const wxString& value ) | |
487 | { | |
488 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
489 | ||
490 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
491 | gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to ); | |
492 | if (value.IsNull()) return; | |
493 | gint pos = (gint)to; | |
494 | gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos ); | |
495 | } | |
496 | ||
497 | void wxComboBox::Remove(long from, long to) | |
498 | { | |
499 | wxCHECK_RET( m_widget != NULL, "invalid combobox" ); | |
500 | ||
501 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; | |
502 | gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to ); | |
503 | } | |
504 | ||
505 | void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) ) | |
506 | { | |
507 | wxFAIL_MSG( "wxComboBox::SetSelection not implemented" ); | |
508 | } | |
509 | ||
510 | void wxComboBox::SetEditable( bool WXUNUSED(editable) ) | |
511 | { | |
512 | wxFAIL_MSG( "wxComboBox::SetEditable not implemented" ); | |
513 | } | |
514 | ||
515 | void wxComboBox::OnSize( wxSizeEvent &event ) | |
516 | { | |
517 | wxControl::OnSize( event ); | |
518 | ||
519 | int w = 21; | |
520 | gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height ); | |
521 | ||
522 | gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y ); | |
523 | gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height ); | |
524 | } | |
525 | ||
526 | void wxComboBox::ApplyWidgetStyle() | |
527 | { | |
528 | SetWidgetStyle(); | |
529 | ||
530 | gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle ); | |
531 | gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle ); | |
532 | gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle ); | |
533 | ||
534 | GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list ); | |
535 | GList *child = list->children; | |
536 | while (child) | |
537 | { | |
538 | gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle ); | |
539 | ||
540 | GtkBin *bin = GTK_BIN(child->data); | |
541 | gtk_widget_set_style( bin->child, m_widgetStyle ); | |
542 | ||
543 | child = child->next; | |
544 | } | |
545 | } | |
546 | ||
547 | GtkWidget* wxComboBox::GetConnectWidget() | |
548 | { | |
549 | return GTK_COMBO(m_widget)->entry; | |
550 | } | |
551 | ||
552 | bool wxComboBox::IsOwnGtkWindow( GdkWindow *window ) | |
553 | { | |
554 | return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) || | |
555 | (window == GTK_COMBO(m_widget)->button->window ) ); | |
556 | } | |
557 |