implemented GetBestSize()
[wxWidgets.git] / src / gtk / radiobox.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: radiobox.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "radiobox.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #if wxUSE_RADIOBOX
18
19 #include "wx/radiobox.h"
20
21 #include "wx/dialog.h"
22 #include "wx/frame.h"
23 #include "wx/log.h"
24
25 #include "wx/gtk/private.h"
26 #include <gdk/gdkkeysyms.h>
27
28 #include "wx/gtk/win_gtk.h"
29
30 //-----------------------------------------------------------------------------
31 // idle system
32 //-----------------------------------------------------------------------------
33
34 extern void wxapp_install_idle_handler();
35 extern bool g_isIdle;
36
37 //-----------------------------------------------------------------------------
38 // data
39 //-----------------------------------------------------------------------------
40
41 extern bool g_blockEventsOnDrag;
42 extern wxWindowGTK *g_delayedFocus;
43
44 //-----------------------------------------------------------------------------
45 // "clicked"
46 //-----------------------------------------------------------------------------
47
48 static void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioBox *rb )
49 {
50 if (g_isIdle) wxapp_install_idle_handler();
51
52 if (!rb->m_hasVMT) return;
53 if (g_blockEventsOnDrag) return;
54
55 if (!button->active) return;
56
57 wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
58 event.SetInt( rb->GetSelection() );
59 event.SetString( rb->GetStringSelection() );
60 event.SetEventObject( rb );
61 rb->GetEventHandler()->ProcessEvent(event);
62 }
63
64 //-----------------------------------------------------------------------------
65 // "key_press_event"
66 //-----------------------------------------------------------------------------
67
68 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
69 {
70 if (g_isIdle)
71 wxapp_install_idle_handler();
72
73 if (!rb->m_hasVMT) return FALSE;
74 if (g_blockEventsOnDrag) return FALSE;
75
76 if ((gdk_event->keyval != GDK_Up) &&
77 (gdk_event->keyval != GDK_Down) &&
78 (gdk_event->keyval != GDK_Left) &&
79 (gdk_event->keyval != GDK_Right))
80 {
81 return FALSE;
82 }
83
84 wxList::compatibility_iterator node = rb->m_boxes.Find( (wxObject*) widget );
85 if (!node)
86 {
87 return FALSE;
88 }
89
90 gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
91
92 if ((gdk_event->keyval == GDK_Up) ||
93 (gdk_event->keyval == GDK_Left))
94 {
95 if (node == rb->m_boxes.GetFirst())
96 node = rb->m_boxes.GetLast();
97 else
98 node = node->GetPrevious();
99 }
100 else
101 {
102 if (node == rb->m_boxes.GetLast())
103 node = rb->m_boxes.GetFirst();
104 else
105 node = node->GetNext();
106 }
107
108 GtkWidget *button = (GtkWidget*) node->GetData();
109
110 gtk_widget_grab_focus( button );
111
112 return TRUE;
113 }
114
115 static gint gtk_radiobutton_focus_in( GtkWidget *widget,
116 GdkEvent *WXUNUSED(event),
117 wxRadioBox *win )
118 {
119 if ( win->m_lostFocus )
120 {
121 // no, we didn't really lose it
122 win->m_lostFocus = FALSE;
123 }
124 else if ( !win->m_hasFocus )
125 {
126 win->m_hasFocus = TRUE;
127
128 wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
129 event.SetEventObject( win );
130
131 // never stop the signal emission, it seems to break the kbd handling
132 // inside the radiobox
133 (void)win->GetEventHandler()->ProcessEvent( event );
134 }
135
136 return FALSE;
137 }
138
139 static gint gtk_radiobutton_focus_out( GtkWidget *widget,
140 GdkEvent *WXUNUSED(event),
141 wxRadioBox *win )
142 {
143 // wxASSERT_MSG( win->m_hasFocus, _T("got focus out without any focus in?") );
144 // Replace with a warning, else we dump core a lot!
145 // if (!win->m_hasFocus)
146 // wxLogWarning(_T("Radiobox got focus out without any focus in.") );
147
148 // we might have lost the focus, but may be not - it may have just gone to
149 // another button in the same radiobox, so we'll check for it in the next
150 // idle iteration (leave m_hasFocus == TRUE for now)
151 win->m_lostFocus = TRUE;
152
153 return FALSE;
154 }
155
156 //-----------------------------------------------------------------------------
157 // wxRadioBox
158 //-----------------------------------------------------------------------------
159
160 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
161
162 void wxRadioBox::Init()
163 {
164 m_needParent = TRUE;
165 m_acceptsFocus = TRUE;
166
167 m_hasFocus =
168 m_lostFocus = FALSE;
169 }
170
171 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id,
172 const wxString& title,
173 const wxPoint &pos, const wxSize &size,
174 const wxArrayString& choices, int majorDim,
175 long style, const wxValidator& validator,
176 const wxString &name )
177 {
178 wxCArrayString chs(choices);
179
180 return Create( parent, id, title, pos, size, chs.GetCount(),
181 chs.GetStrings(), majorDim, style, validator, name );
182 }
183
184 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
185 const wxPoint &pos, const wxSize &size,
186 int n, const wxString choices[], int majorDim,
187 long style, const wxValidator& validator,
188 const wxString &name )
189 {
190 if (!PreCreation( parent, pos, size ) ||
191 !CreateBase( parent, id, pos, size, style, validator, name ))
192 {
193 wxFAIL_MSG( wxT("wxRadioBox creation failed") );
194 return FALSE;
195 }
196
197 m_widget = gtk_frame_new( wxGTK_CONV( title ) );
198
199 // majorDim may be 0 if all trailing parameters were omitted, so don't
200 // assert here but just use the correct value for it
201 m_majorDim = majorDim == 0 ? n : majorDim;
202
203 GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
204
205 wxString label;
206 GSList *radio_button_group = (GSList *) NULL;
207 for (int i = 0; i < n; i++)
208 {
209 if ( i != 0 )
210 radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
211
212 label.Empty();
213 for ( const wxChar *pc = choices[i]; *pc; pc++ )
214 {
215 if ( *pc != wxT('&') )
216 label += *pc;
217 }
218
219 m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
220
221 gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
222 GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
223
224 m_boxes.Append( (wxObject*) m_radio );
225
226 ConnectWidget( GTK_WIDGET(m_radio) );
227
228 if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
229
230 gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
231 GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
232
233 gtk_signal_connect( GTK_OBJECT(m_radio), "focus_in_event",
234 GTK_SIGNAL_FUNC(gtk_radiobutton_focus_in), (gpointer)this );
235
236 gtk_signal_connect( GTK_OBJECT(m_radio), "focus_out_event",
237 GTK_SIGNAL_FUNC(gtk_radiobutton_focus_out), (gpointer)this );
238
239 gtk_pizza_put( GTK_PIZZA(m_parent->m_wxwindow),
240 GTK_WIDGET(m_radio),
241 m_x+10, m_y+10+(i*24), 10, 10 );
242 }
243
244 m_parent->DoAddChild( this );
245
246 bool wasShown = IsShown();
247 if ( wasShown )
248 Hide(); // prevent PostCreation() from showing us
249 PostCreation();
250 InheritAttributes();
251
252 ApplyWidgetStyle();
253
254 SetLabel( title );
255
256 SetFont( parent->GetFont() );
257
258 SetBestSize( size );
259
260 if ( wasShown )
261 Show();
262
263 return TRUE;
264 }
265
266 wxRadioBox::~wxRadioBox()
267 {
268 wxList::compatibility_iterator node = m_boxes.GetFirst();
269 while (node)
270 {
271 GtkWidget *button = GTK_WIDGET( node->GetData() );
272 gtk_widget_destroy( button );
273 node = node->GetNext();
274 }
275 }
276
277 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
278 {
279 wxWindow::DoSetSize( x, y, width, height, sizeFlags );
280
281 LayoutItems(false);
282 }
283
284 wxSize wxRadioBox::DoGetBestSize() const
285 {
286 wxSize size = LayoutItems(true);
287
288 GtkRequisition req;
289 req.width = 2;
290 req.height = 2;
291 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request ) (m_widget, &req );
292 if (req.width > size.x)
293 size.x = req.width;
294
295 return size;
296 }
297
298 wxSize wxRadioBox::LayoutItems(bool justCalc) const
299 {
300 wxSize res( 0, 0 );
301
302 // avoid dividing by 0 below
303 wxCHECK_MSG( m_majorDim, res, wxT("dimension of radiobox should not be 0!") );
304
305 int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
306
307 int x = 7;
308 int y = 15;
309
310 int num_of_cols = 0;
311 int num_of_rows = 0;
312 if (HasFlag(wxRA_SPECIFY_COLS))
313 {
314 num_of_cols = m_majorDim;
315 num_of_rows = num_per_major;
316 }
317 else
318 {
319 num_of_cols = num_per_major;
320 num_of_rows = m_majorDim;
321 }
322
323 int lineheight = GetCharHeight()+2;
324
325 if ( HasFlag(wxRA_SPECIFY_COLS) ||
326 (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
327 {
328 for (int j = 0; j < num_of_cols; j++)
329 {
330 y = 3;
331 y += lineheight;
332
333 int max_len = 0;
334 wxList::compatibility_iterator node = m_boxes.Item( j*num_of_rows );
335 for (int i1 = 0; i1< num_of_rows; i1++)
336 {
337 GtkWidget *button = GTK_WIDGET( node->GetData() );
338
339 GtkRequisition req;
340 req.width = 2;
341 req.height = 2;
342 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(button) )->size_request )
343 (button, &req );
344
345 if (req.width > max_len) max_len = req.width;
346
347 if ( !justCalc )
348 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
349 y += req.height;
350
351 node = node->GetNext();
352 if (!node) break;
353 }
354
355 // we don't know the max_len before
356
357 node = m_boxes.Item( j*num_of_rows );
358 for (int i2 = 0; i2< num_of_rows; i2++)
359 {
360 GtkWidget *button = GTK_WIDGET( node->GetData() );
361
362 if ( !justCalc )
363 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, lineheight );
364
365 node = node->GetNext();
366 if (!node) break;
367 }
368
369 if (y > res.y) res.y = y;
370
371 x += max_len + 2;
372 }
373
374 res.x = x+4;
375 res.y += 4;
376 }
377 else
378 {
379 int max = 0;
380
381 wxList::compatibility_iterator node = m_boxes.GetFirst();
382 while (node)
383 {
384 GtkWidget *button = GTK_WIDGET( node->GetData() );
385
386 GtkRequisition req;
387 req.width = 2;
388 req.height = 2;
389 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(button) )->size_request )
390 (button, &req );
391
392 if (req.width > max) max = req.width;
393
394 node = node->GetNext();
395 }
396
397 node = m_boxes.GetFirst();
398 while (node)
399 {
400 GtkWidget *button = GTK_WIDGET( node->GetData() );
401
402 if ( !justCalc )
403 gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, lineheight );
404 x += max;
405
406 node = node->GetNext();
407 }
408 res.x = x+4;
409 res.y = 40;
410 }
411
412 return res;
413 }
414
415 bool wxRadioBox::Show( bool show )
416 {
417 wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
418
419 if (!wxControl::Show(show))
420 {
421 // nothing to do
422 return FALSE;
423 }
424
425 if ( HasFlag(wxNO_BORDER) )
426 gtk_widget_hide( m_widget );
427
428 wxList::compatibility_iterator node = m_boxes.GetFirst();
429 while (node)
430 {
431 GtkWidget *button = GTK_WIDGET( node->GetData() );
432
433 if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
434
435 node = node->GetNext();
436 }
437
438 return TRUE;
439 }
440
441 int wxRadioBox::FindString( const wxString &find ) const
442 {
443 wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
444
445 int count = 0;
446
447 wxList::compatibility_iterator node = m_boxes.GetFirst();
448 while (node)
449 {
450 GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
451 #ifdef __WXGTK20__
452 wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
453 #else
454 wxString str( label->label );
455 #endif
456 if (find == str)
457 return count;
458
459 count++;
460
461 node = node->GetNext();
462 }
463
464 return -1;
465 }
466
467 void wxRadioBox::SetFocus()
468 {
469 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
470
471 if (m_boxes.GetCount() == 0) return;
472
473 wxList::compatibility_iterator node = m_boxes.GetFirst();
474 while (node)
475 {
476 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
477 if (button->active)
478 {
479 gtk_widget_grab_focus( GTK_WIDGET(button) );
480 return;
481 }
482 node = node->GetNext();
483 }
484 }
485
486 void wxRadioBox::SetSelection( int n )
487 {
488 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
489
490 wxList::compatibility_iterator node = m_boxes.Item( n );
491
492 wxCHECK_RET( node, wxT("radiobox wrong index") );
493
494 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
495
496 GtkDisableEvents();
497
498 gtk_toggle_button_set_active( button, 1 );
499
500 GtkEnableEvents();
501 }
502
503 int wxRadioBox::GetSelection(void) const
504 {
505 wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
506
507 int count = 0;
508
509 wxList::compatibility_iterator node = m_boxes.GetFirst();
510 while (node)
511 {
512 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
513 if (button->active) return count;
514 count++;
515 node = node->GetNext();
516 }
517
518 wxFAIL_MSG( wxT("wxRadioBox none selected") );
519
520 return -1;
521 }
522
523 wxString wxRadioBox::GetString( int n ) const
524 {
525 wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
526
527 wxList::compatibility_iterator node = m_boxes.Item( n );
528
529 wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
530
531 GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
532
533 #ifdef __WXGTK20__
534 wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
535 #else
536 wxString str( label->label );
537 #endif
538
539 return str;
540 }
541
542 void wxRadioBox::SetLabel( const wxString& label )
543 {
544 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
545
546 wxControl::SetLabel( label );
547
548 gtk_frame_set_label( GTK_FRAME(m_widget), wxGTK_CONV( wxControl::GetLabel() ) );
549 }
550
551 void wxRadioBox::SetString( int item, const wxString& label )
552 {
553 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
554
555 wxList::compatibility_iterator node = m_boxes.Item( item );
556
557 wxCHECK_RET( node, wxT("radiobox wrong index") );
558
559 GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
560
561 gtk_label_set( g_label, wxGTK_CONV( label ) );
562 }
563
564 bool wxRadioBox::Enable( bool enable )
565 {
566 if ( !wxControl::Enable( enable ) )
567 return FALSE;
568
569 wxList::compatibility_iterator node = m_boxes.GetFirst();
570 while (node)
571 {
572 GtkButton *button = GTK_BUTTON( node->GetData() );
573 GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
574
575 gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
576 gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
577 node = node->GetNext();
578 }
579
580 return TRUE;
581 }
582
583 void wxRadioBox::Enable( int item, bool enable )
584 {
585 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
586
587 wxList::compatibility_iterator node = m_boxes.Item( item );
588
589 wxCHECK_RET( node, wxT("radiobox wrong index") );
590
591 GtkButton *button = GTK_BUTTON( node->GetData() );
592 GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
593
594 gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
595 gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
596 }
597
598 void wxRadioBox::Show( int item, bool show )
599 {
600 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
601
602 wxList::compatibility_iterator node = m_boxes.Item( item );
603
604 wxCHECK_RET( node, wxT("radiobox wrong index") );
605
606 GtkWidget *button = GTK_WIDGET( node->GetData() );
607
608 if (show)
609 gtk_widget_show( button );
610 else
611 gtk_widget_hide( button );
612 }
613
614 wxString wxRadioBox::GetStringSelection() const
615 {
616 wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
617
618 wxList::compatibility_iterator node = m_boxes.GetFirst();
619 while (node)
620 {
621 GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
622 if (button->active)
623 {
624 GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
625
626 #ifdef __WXGTK20__
627 wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
628 #else
629 wxString str( label->label );
630 #endif
631 return str;
632 }
633 node = node->GetNext();
634 }
635
636 wxFAIL_MSG( wxT("wxRadioBox none selected") );
637 return wxT("");
638 }
639
640 bool wxRadioBox::SetStringSelection( const wxString &s )
641 {
642 wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
643
644 int res = FindString( s );
645 if (res == -1) return FALSE;
646 SetSelection( res );
647
648 return TRUE;
649 }
650
651 int wxRadioBox::GetCount() const
652 {
653 return m_boxes.GetCount();
654 }
655
656 int wxRadioBox::GetNumberOfRowsOrCols() const
657 {
658 return 1;
659 }
660
661 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
662 {
663 wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
664 }
665
666 void wxRadioBox::GtkDisableEvents()
667 {
668 wxList::compatibility_iterator node = m_boxes.GetFirst();
669 while (node)
670 {
671 gtk_signal_disconnect_by_func( GTK_OBJECT(node->GetData()),
672 GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
673
674 node = node->GetNext();
675 }
676 }
677
678 void wxRadioBox::GtkEnableEvents()
679 {
680 wxList::compatibility_iterator node = m_boxes.GetFirst();
681 while (node)
682 {
683 gtk_signal_connect( GTK_OBJECT(node->GetData()), "clicked",
684 GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
685
686 node = node->GetNext();
687 }
688 }
689
690 void wxRadioBox::ApplyWidgetStyle()
691 {
692 SetWidgetStyle();
693
694 gtk_widget_set_style( m_widget, m_widgetStyle );
695
696 wxList::compatibility_iterator node = m_boxes.GetFirst();
697 while (node)
698 {
699 GtkWidget *widget = GTK_WIDGET( node->GetData() );
700 gtk_widget_set_style( widget, m_widgetStyle );
701
702 gtk_widget_set_style( BUTTON_CHILD(node->GetData()), m_widgetStyle );
703
704 node = node->GetNext();
705 }
706 }
707
708 #if wxUSE_TOOLTIPS
709 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
710 {
711 wxList::compatibility_iterator node = m_boxes.GetFirst();
712 while (node)
713 {
714 GtkWidget *widget = GTK_WIDGET( node->GetData() );
715 gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
716 node = node->GetNext();
717 }
718 }
719 #endif // wxUSE_TOOLTIPS
720
721 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
722 {
723 if (window == m_widget->window) return TRUE;
724
725 wxList::compatibility_iterator node = m_boxes.GetFirst();
726 while (node)
727 {
728 GtkWidget *button = GTK_WIDGET( node->GetData() );
729
730 if (window == button->window) return TRUE;
731
732 node = node->GetNext();
733 }
734
735 return FALSE;
736 }
737
738 void wxRadioBox::OnInternalIdle()
739 {
740 if ( m_lostFocus )
741 {
742 m_hasFocus = FALSE;
743 m_lostFocus = FALSE;
744
745 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
746 event.SetEventObject( this );
747
748 (void)GetEventHandler()->ProcessEvent( event );
749 }
750
751 if (g_delayedFocus == this)
752 {
753 if (GTK_WIDGET_REALIZED(m_widget))
754 {
755 g_delayedFocus = NULL;
756 SetFocus();
757 }
758 }
759 }
760
761 #endif // wxUSE_RADIOBOX
762