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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/radiobox.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #if wxUSE_RADIOBOX
14
15 #include "wx/radiobox.h"
16
17 #if wxUSE_TOOLTIPS
18 #include "wx/tooltip.h"
19 #endif
20
21 #include <gtk/gtk.h>
22 #include "wx/gtk/private.h"
23 #include "wx/gtk/private/gtk2-compat.h"
24
25 #include <gdk/gdkkeysyms.h>
26 #if GTK_CHECK_VERSION(3,0,0)
27 #include <gdk/gdkkeysyms-compat.h>
28 #endif
29
30 //-----------------------------------------------------------------------------
31 // wxGTKRadioButtonInfo
32 //-----------------------------------------------------------------------------
33 // structure internally used by wxRadioBox to store its child buttons
34
35 class wxGTKRadioButtonInfo : public wxObject
36 {
37 public:
38 wxGTKRadioButtonInfo( GtkRadioButton * abutton, const wxRect & arect )
39 : button( abutton ), rect( arect ) {}
40
41 GtkRadioButton * button;
42 wxRect rect;
43 };
44
45 //-----------------------------------------------------------------------------
46 // data
47 //-----------------------------------------------------------------------------
48
49 #include "wx/listimpl.cpp"
50 WX_DEFINE_LIST( wxRadioBoxButtonsInfoList )
51
52 extern bool g_blockEventsOnDrag;
53
54 //-----------------------------------------------------------------------------
55 // "clicked"
56 //-----------------------------------------------------------------------------
57
58 extern "C" {
59 static void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioBox *rb )
60 {
61 if (!rb->m_hasVMT) return;
62 if (g_blockEventsOnDrag) return;
63
64 if (!gtk_toggle_button_get_active(button)) return;
65
66 wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
67 event.SetInt( rb->GetSelection() );
68 event.SetString( rb->GetStringSelection() );
69 event.SetEventObject( rb );
70 rb->HandleWindowEvent(event);
71 }
72 }
73
74 //-----------------------------------------------------------------------------
75 // "key_press_event"
76 //-----------------------------------------------------------------------------
77
78 extern "C" {
79 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
80 {
81 if (!rb->m_hasVMT) return FALSE;
82 if (g_blockEventsOnDrag) return FALSE;
83
84 if ( ((gdk_event->keyval == GDK_Tab) ||
85 (gdk_event->keyval == GDK_ISO_Left_Tab)) &&
86 rb->GetParent() && (rb->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
87 {
88 wxNavigationKeyEvent new_event;
89 new_event.SetEventObject( rb->GetParent() );
90 // GDK reports GDK_ISO_Left_Tab for SHIFT-TAB
91 new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
92 // CTRL-TAB changes the (parent) window, i.e. switch notebook page
93 new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) != 0 );
94 new_event.SetCurrentFocus( rb );
95 return rb->GetParent()->HandleWindowEvent(new_event);
96 }
97
98 if ((gdk_event->keyval != GDK_Up) &&
99 (gdk_event->keyval != GDK_Down) &&
100 (gdk_event->keyval != GDK_Left) &&
101 (gdk_event->keyval != GDK_Right))
102 {
103 return FALSE;
104 }
105
106 wxRadioBoxButtonsInfoList::compatibility_iterator node = rb->m_buttonsInfo.GetFirst();
107 while( node && GTK_WIDGET( node->GetData()->button ) != widget )
108 {
109 node = node->GetNext();
110 }
111 if (!node)
112 {
113 return FALSE;
114 }
115
116 if ((gdk_event->keyval == GDK_Up) ||
117 (gdk_event->keyval == GDK_Left))
118 {
119 if (node == rb->m_buttonsInfo.GetFirst())
120 node = rb->m_buttonsInfo.GetLast();
121 else
122 node = node->GetPrevious();
123 }
124 else
125 {
126 if (node == rb->m_buttonsInfo.GetLast())
127 node = rb->m_buttonsInfo.GetFirst();
128 else
129 node = node->GetNext();
130 }
131
132 GtkWidget *button = (GtkWidget*) node->GetData()->button;
133
134 gtk_widget_grab_focus( button );
135
136 return TRUE;
137 }
138 }
139
140 extern "C" {
141 static gint gtk_radiobutton_focus_out( GtkWidget * WXUNUSED(widget),
142 GdkEventFocus *WXUNUSED(event),
143 wxRadioBox *win )
144 {
145 // NB: This control is composed of several GtkRadioButton widgets and
146 // when focus changes from one of them to another in the same
147 // wxRadioBox, we get a focus-out event followed by focus-in for
148 // another GtkRadioButton owned by the same control. We don't want
149 // to generate two spurious wxEVT_SET_FOCUS events in this case,
150 // so we defer sending wx events until idle time.
151 win->GTKHandleFocusOut();
152
153 // never stop the signal emission, it seems to break the kbd handling
154 // inside the radiobox
155 return FALSE;
156 }
157 }
158
159 extern "C" {
160 static gint gtk_radiobutton_focus_in( GtkWidget * WXUNUSED(widget),
161 GdkEventFocus *WXUNUSED(event),
162 wxRadioBox *win )
163 {
164 win->GTKHandleFocusIn();
165
166 // never stop the signal emission, it seems to break the kbd handling
167 // inside the radiobox
168 return FALSE;
169 }
170 }
171
172 extern "C" {
173 static void gtk_radiobutton_size_allocate( GtkWidget *widget,
174 GtkAllocation * alloc,
175 wxRadioBox *win )
176 {
177 for ( wxRadioBoxButtonsInfoList::compatibility_iterator node = win->m_buttonsInfo.GetFirst();
178 node;
179 node = node->GetNext())
180 {
181 if (widget == GTK_WIDGET(node->GetData()->button))
182 {
183 const wxPoint origin = win->GetPosition();
184 wxRect rect = wxRect( alloc->x - origin.x, alloc->y - origin.y,
185 alloc->width, alloc->height );
186 node->GetData()->rect = rect;
187 break;
188 }
189 }
190 }
191 }
192
193
194 //-----------------------------------------------------------------------------
195 // wxRadioBox
196 //-----------------------------------------------------------------------------
197
198 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
199
200 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id,
201 const wxString& title,
202 const wxPoint &pos, const wxSize &size,
203 const wxArrayString& choices, int majorDim,
204 long style, const wxValidator& validator,
205 const wxString &name )
206 {
207 wxCArrayString chs(choices);
208
209 return Create( parent, id, title, pos, size, chs.GetCount(),
210 chs.GetStrings(), majorDim, style, validator, name );
211 }
212
213 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
214 const wxPoint &pos, const wxSize &size,
215 int n, const wxString choices[], int majorDim,
216 long style, const wxValidator& validator,
217 const wxString &name )
218 {
219 if (!PreCreation( parent, pos, size ) ||
220 !CreateBase( parent, id, pos, size, style, validator, name ))
221 {
222 wxFAIL_MSG( wxT("wxRadioBox creation failed") );
223 return false;
224 }
225
226 m_widget = GTKCreateFrame(title);
227 g_object_ref(m_widget);
228 wxControl::SetLabel(title);
229 if ( HasFlag(wxNO_BORDER) )
230 {
231 // If we don't do this here, the wxNO_BORDER style is ignored in Show()
232 gtk_frame_set_shadow_type(GTK_FRAME(m_widget), GTK_SHADOW_NONE);
233 }
234
235
236 // majorDim may be 0 if all trailing parameters were omitted, so don't
237 // assert here but just use the correct value for it
238 SetMajorDim(majorDim == 0 ? n : majorDim, style);
239
240
241 unsigned int num_of_cols = GetColumnCount();
242 unsigned int num_of_rows = GetRowCount();
243
244 GtkRadioButton *rbtn = NULL;
245
246 GtkWidget *table = gtk_table_new( num_of_rows, num_of_cols, FALSE );
247 gtk_table_set_col_spacings( GTK_TABLE(table), 1 );
248 gtk_table_set_row_spacings( GTK_TABLE(table), 1 );
249 gtk_widget_show( table );
250 gtk_container_add( GTK_CONTAINER(m_widget), table );
251
252 wxString label;
253 GSList *radio_button_group = NULL;
254 for (unsigned int i = 0; i < (unsigned int)n; i++)
255 {
256 if ( i != 0 )
257 radio_button_group = gtk_radio_button_get_group( GTK_RADIO_BUTTON(rbtn) );
258
259 label.Empty();
260 for ( wxString::const_iterator pc = choices[i].begin();
261 pc != choices[i].end(); ++pc )
262 {
263 if ( *pc != wxT('&') )
264 label += *pc;
265 }
266
267 rbtn = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
268 gtk_widget_show( GTK_WIDGET(rbtn) );
269
270 g_signal_connect (rbtn, "key_press_event",
271 G_CALLBACK (gtk_radiobox_keypress_callback), this);
272
273 m_buttonsInfo.Append( new wxGTKRadioButtonInfo( rbtn, wxRect() ) );
274
275 if (HasFlag(wxRA_SPECIFY_COLS))
276 {
277 int left = i%num_of_cols;
278 int right = (i%num_of_cols) + 1;
279 int top = i/num_of_cols;
280 int bottom = (i/num_of_cols)+1;
281 gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(rbtn), left, right, top, bottom,
282 GTK_FILL, GTK_FILL, 1, 1 );
283 }
284 else
285 {
286 int left = i/num_of_rows;
287 int right = (i/num_of_rows) + 1;
288 int top = i%num_of_rows;
289 int bottom = (i%num_of_rows)+1;
290 gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(rbtn), left, right, top, bottom,
291 GTK_FILL, GTK_FILL, 1, 1 );
292 }
293
294 ConnectWidget( GTK_WIDGET(rbtn) );
295
296 if (!i)
297 gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(rbtn), TRUE );
298
299 g_signal_connect (rbtn, "clicked",
300 G_CALLBACK (gtk_radiobutton_clicked_callback), this);
301 g_signal_connect (rbtn, "focus_in_event",
302 G_CALLBACK (gtk_radiobutton_focus_in), this);
303 g_signal_connect (rbtn, "focus_out_event",
304 G_CALLBACK (gtk_radiobutton_focus_out), this);
305 g_signal_connect (rbtn, "size_allocate",
306 G_CALLBACK (gtk_radiobutton_size_allocate), this);
307 }
308
309 m_parent->DoAddChild( this );
310
311 PostCreation(size);
312
313 return true;
314 }
315
316 wxRadioBox::~wxRadioBox()
317 {
318 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
319 while (node)
320 {
321 GtkWidget *button = GTK_WIDGET( node->GetData()->button );
322 gtk_widget_destroy( button );
323 node = node->GetNext();
324 }
325 WX_CLEAR_LIST( wxRadioBoxButtonsInfoList, m_buttonsInfo );
326 }
327
328 bool wxRadioBox::Show( bool show )
329 {
330 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
331
332 if (!wxControl::Show(show))
333 {
334 // nothing to do
335 return false;
336 }
337
338 if ( HasFlag(wxNO_BORDER) )
339 gtk_widget_hide( m_widget );
340
341 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
342 while (node)
343 {
344 GtkWidget *button = GTK_WIDGET( node->GetData()->button );
345
346 if (show)
347 gtk_widget_show( button );
348 else
349 gtk_widget_hide( button );
350
351 node = node->GetNext();
352 }
353
354 return true;
355 }
356
357 void wxRadioBox::SetSelection( int n )
358 {
359 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
360
361 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( n );
362
363 wxCHECK_RET( node, wxT("radiobox wrong index") );
364
365 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData()->button );
366
367 GtkDisableEvents();
368
369 gtk_toggle_button_set_active( button, 1 );
370
371 GtkEnableEvents();
372 }
373
374 int wxRadioBox::GetSelection(void) const
375 {
376 wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid radiobox") );
377
378 int count = 0;
379
380 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
381 while (node)
382 {
383 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData()->button );
384 if (gtk_toggle_button_get_active(button)) return count;
385 count++;
386 node = node->GetNext();
387 }
388
389 wxFAIL_MSG( wxT("wxRadioBox none selected") );
390
391 return wxNOT_FOUND;
392 }
393
394 wxString wxRadioBox::GetString(unsigned int n) const
395 {
396 wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid radiobox") );
397
398 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( n );
399
400 wxCHECK_MSG( node, wxEmptyString, wxT("radiobox wrong index") );
401
402 GtkLabel* label = GTK_LABEL(gtk_bin_get_child(GTK_BIN(node->GetData()->button)));
403
404 wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
405
406 return str;
407 }
408
409 void wxRadioBox::SetLabel( const wxString& label )
410 {
411 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
412
413 GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
414 }
415
416 void wxRadioBox::SetString(unsigned int item, const wxString& label)
417 {
418 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
419
420 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( item );
421
422 wxCHECK_RET( node, wxT("radiobox wrong index") );
423
424 GtkLabel* g_label = GTK_LABEL(gtk_bin_get_child(GTK_BIN(node->GetData()->button)));
425
426 gtk_label_set_text( g_label, wxGTK_CONV( label ) );
427 }
428
429 bool wxRadioBox::Enable( bool enable )
430 {
431 if ( !wxControl::Enable( enable ) )
432 return false;
433
434 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
435 while (node)
436 {
437 GtkButton *button = GTK_BUTTON( node->GetData()->button );
438 GtkLabel *label = GTK_LABEL(gtk_bin_get_child(GTK_BIN(button)));
439
440 gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
441 gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
442 node = node->GetNext();
443 }
444
445 if (enable)
446 GTKFixSensitivity();
447
448 return true;
449 }
450
451 bool wxRadioBox::Enable(unsigned int item, bool enable)
452 {
453 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
454
455 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( item );
456
457 wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
458
459 GtkButton *button = GTK_BUTTON( node->GetData()->button );
460 GtkLabel *label = GTK_LABEL(gtk_bin_get_child(GTK_BIN(button)));
461
462 gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
463 gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
464
465 return true;
466 }
467
468 bool wxRadioBox::IsItemEnabled(unsigned int item) const
469 {
470 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
471
472 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( item );
473
474 wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
475
476 GtkButton *button = GTK_BUTTON( node->GetData()->button );
477
478 // don't use GTK_WIDGET_IS_SENSITIVE() here, we want to return true even if
479 // the parent radiobox is disabled
480 return gtk_widget_get_sensitive(GTK_WIDGET(button)) != 0;
481 }
482
483 bool wxRadioBox::Show(unsigned int item, bool show)
484 {
485 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
486
487 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( item );
488
489 wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
490
491 GtkWidget *button = GTK_WIDGET( node->GetData()->button );
492
493 if (show)
494 gtk_widget_show( button );
495 else
496 gtk_widget_hide( button );
497
498 return true;
499 }
500
501 bool wxRadioBox::IsItemShown(unsigned int item) const
502 {
503 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
504
505 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.Item( item );
506
507 wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
508
509 GtkButton *button = GTK_BUTTON( node->GetData()->button );
510
511 return gtk_widget_get_visible(GTK_WIDGET(button)) != 0;
512 }
513
514 unsigned int wxRadioBox::GetCount() const
515 {
516 return m_buttonsInfo.GetCount();
517 }
518
519 void wxRadioBox::GtkDisableEvents()
520 {
521 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
522 while (node)
523 {
524 g_signal_handlers_block_by_func(node->GetData()->button,
525 (gpointer)gtk_radiobutton_clicked_callback, this);
526
527 node = node->GetNext();
528 }
529 }
530
531 void wxRadioBox::GtkEnableEvents()
532 {
533 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
534 while (node)
535 {
536 g_signal_handlers_unblock_by_func(node->GetData()->button,
537 (gpointer)gtk_radiobutton_clicked_callback, this);
538
539 node = node->GetNext();
540 }
541 }
542
543 void wxRadioBox::DoApplyWidgetStyle(GtkRcStyle *style)
544 {
545 GTKFrameApplyWidgetStyle(GTK_FRAME(m_widget), style);
546
547 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
548 while (node)
549 {
550 GtkWidget *widget = GTK_WIDGET( node->GetData()->button );
551
552 GTKApplyStyle(widget, style);
553 GTKApplyStyle(gtk_bin_get_child(GTK_BIN(widget)), style);
554
555 node = node->GetNext();
556 }
557 }
558
559 bool wxRadioBox::GTKWidgetNeedsMnemonic() const
560 {
561 return true;
562 }
563
564 void wxRadioBox::GTKWidgetDoSetMnemonic(GtkWidget* w)
565 {
566 GTKFrameSetMnemonicWidget(GTK_FRAME(m_widget), w);
567 }
568
569 #if wxUSE_TOOLTIPS
570 void wxRadioBox::GTKApplyToolTip(const char* tip)
571 {
572 // set this tooltip for all radiobuttons which don't have their own tips
573 unsigned n = 0;
574 for ( wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
575 node;
576 node = node->GetNext(), n++ )
577 {
578 if ( !GetItemToolTip(n) )
579 {
580 wxToolTip::GTKApply(GTK_WIDGET(node->GetData()->button), tip);
581 }
582 }
583 }
584
585 void wxRadioBox::DoSetItemToolTip(unsigned int n, wxToolTip *tooltip)
586 {
587 wxCharBuffer buf;
588 if ( !tooltip )
589 tooltip = GetToolTip();
590 if ( tooltip )
591 buf = wxGTK_CONV(tooltip->GetTip());
592
593 wxToolTip::GTKApply(GTK_WIDGET(m_buttonsInfo[n]->button), buf);
594 }
595
596 #endif // wxUSE_TOOLTIPS
597
598 GdkWindow *wxRadioBox::GTKGetWindow(wxArrayGdkWindows& windows) const
599 {
600 windows.push_back(gtk_widget_get_window(m_widget));
601
602 wxRadioBoxButtonsInfoList::compatibility_iterator node = m_buttonsInfo.GetFirst();
603 while (node)
604 {
605 GtkWidget *button = GTK_WIDGET( node->GetData()->button );
606
607 // don't put NULL pointers in the 'windows' array!
608 if (gtk_widget_get_window(button))
609 windows.push_back(gtk_widget_get_window(button));
610
611 node = node->GetNext();
612 }
613
614 return NULL;
615 }
616
617 // static
618 wxVisualAttributes
619 wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
620 {
621 wxVisualAttributes attr;
622 // NB: we need toplevel window so that GTK+ can find the right style
623 GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
624 GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
625 gtk_container_add(GTK_CONTAINER(wnd), widget);
626 attr = GetDefaultAttributesFromGTKWidget(widget);
627 gtk_widget_destroy(wnd);
628 return attr;
629 }
630
631 int wxRadioBox::GetItemFromPoint(const wxPoint& point) const
632 {
633 const wxPoint pt = ScreenToClient(point);
634 unsigned n = 0;
635 for ( wxRadioBoxButtonsInfoList::compatibility_iterator
636 node = m_buttonsInfo.GetFirst(); node; node = node->GetNext(), n++ )
637 {
638 if ( m_buttonsInfo[n]->rect.Contains(pt) )
639 return n;
640 }
641
642 return wxNOT_FOUND;
643 }
644
645 #endif // wxUSE_RADIOBOX