src/gtk1/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/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 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/frame.h"
  20     #include "wx/dialog.h"
  21 #endif
  22
  23 #include "wx/gtk1/private.h"
  24 #include <gdk/gdkkeysyms.h>
  25
  26 #include "wx/gtk1/win_gtk.h"
  27
  28 //-----------------------------------------------------------------------------
  29 // idle system
  30 //-----------------------------------------------------------------------------
  31
  32 extern void wxapp_install_idle_handler();
  33 extern bool g_isIdle;
  34
  35 //-----------------------------------------------------------------------------
  36 // data
  37 //-----------------------------------------------------------------------------
  38
  39 extern bool          g_blockEventsOnDrag;
  40 extern wxWindowGTK  *g_delayedFocus;
  41
  42 //-----------------------------------------------------------------------------
  43 // "clicked"
  44 //-----------------------------------------------------------------------------
  45
  46 extern "C" {
  47 static void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioBox *rb )
  48 {
  49     if (g_isIdle) wxapp_install_idle_handler();
  50
  51     if (!rb->m_hasVMT) return;
  52     if (g_blockEventsOnDrag) return;
  53
  54     if (!button->active) return;
  55
  56     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  57     event.SetInt( rb->GetSelection() );
  58     event.SetString( rb->GetStringSelection() );
  59     event.SetEventObject( rb );
  60     rb->GetEventHandler()->ProcessEvent(event);
  61 }
  62 }
  63
  64 //-----------------------------------------------------------------------------
  65 // "key_press_event"
  66 //-----------------------------------------------------------------------------
  67
  68 extern "C" {
  69 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
  70 {
  71     if (g_isIdle)
  72         wxapp_install_idle_handler();
  73
  74     if (!rb->m_hasVMT) return FALSE;
  75     if (g_blockEventsOnDrag) return FALSE;
  76
  77     if ((gdk_event->keyval != GDK_Up) &&
  78         (gdk_event->keyval != GDK_Down) &&
  79         (gdk_event->keyval != GDK_Left) &&
  80         (gdk_event->keyval != GDK_Right))
  81     {
  82         return FALSE;
  83     }
  84
  85     wxList::compatibility_iterator node = rb->m_boxes.Find( (wxObject*) widget );
  86     if (!node)
  87     {
  88         return FALSE;
  89     }
  90
  91     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
  92
  93     if ((gdk_event->keyval == GDK_Up) ||
  94         (gdk_event->keyval == GDK_Left))
  95     {
  96         if (node == rb->m_boxes.GetFirst())
  97             node = rb->m_boxes.GetLast();
  98         else
  99             node = node->GetPrevious();
 100     }
 101     else
 102     {
 103         if (node == rb->m_boxes.GetLast())
 104             node = rb->m_boxes.GetFirst();
 105         else
 106             node = node->GetNext();
 107     }
 108
 109     GtkWidget *button = (GtkWidget*) node->GetData();
 110
 111     gtk_widget_grab_focus( button );
 112
 113     return TRUE;
 114 }
 115 }
 116
 117 extern "C" {
 118 static gint gtk_radiobutton_focus_in( GtkWidget *widget,
 119                                       GdkEvent *WXUNUSED(event),
 120                                       wxRadioBox *win )
 121 {
 122     if ( win->m_lostFocus )
 123     {
 124         // no, we didn't really lose it
 125         win->m_lostFocus = FALSE;
 126     }
 127     else if ( !win->m_hasFocus )
 128     {
 129         win->m_hasFocus = true;
 130
 131         wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
 132         event.SetEventObject( win );
 133
 134         // never stop the signal emission, it seems to break the kbd handling
 135         // inside the radiobox
 136         (void)win->GetEventHandler()->ProcessEvent( event );
 137     }
 138
 139     return FALSE;
 140 }
 141 }
 142
 143 extern "C" {
 144 static gint gtk_radiobutton_focus_out( GtkWidget *widget,
 145                                        GdkEvent *WXUNUSED(event),
 146                                        wxRadioBox *win )
 147 {
 148   //    wxASSERT_MSG( win->m_hasFocus, _T("got focus out without any focus in?") );
 149   // Replace with a warning, else we dump core a lot!
 150   //  if (!win->m_hasFocus)
 151   //      wxLogWarning(_T("Radiobox got focus out without any focus in.") );
 152
 153     // we might have lost the focus, but may be not - it may have just gone to
 154     // another button in the same radiobox, so we'll check for it in the next
 155     // idle iteration (leave m_hasFocus == true for now)
 156     win->m_lostFocus = true;
 157
 158     return FALSE;
 159 }
 160 }
 161
 162 //-----------------------------------------------------------------------------
 163 // wxRadioBox
 164 //-----------------------------------------------------------------------------
 165
 166 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
 167
 168 void wxRadioBox::Init()
 169 {
 170     m_needParent = true;
 171     m_acceptsFocus = true;
 172
 173     m_hasFocus =
 174     m_lostFocus = false;
 175 }
 176
 177 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id,
 178                          const wxString& title,
 179                          const wxPoint &pos, const wxSize &size,
 180                          const wxArrayString& choices, int majorDim,
 181                          long style, const wxValidator& validator,
 182                          const wxString &name )
 183 {
 184     wxCArrayString chs(choices);
 185
 186     return Create( parent, id, title, pos, size, chs.GetCount(),
 187                    chs.GetStrings(), majorDim, style, validator, name );
 188 }
 189
 190 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
 191                          const wxPoint &pos, const wxSize &size,
 192                          int n, const wxString choices[], int majorDim,
 193                          long style, const wxValidator& validator,
 194                          const wxString &name )
 195 {
 196     if (!PreCreation( parent, pos, size ) ||
 197         !CreateBase( parent, id, pos, size, style, validator, name ))
 198     {
 199         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
 200         return false;
 201     }
 202
 203     m_widget = gtk_frame_new(NULL);
 204     SetLabel(title);
 205
 206     // majorDim may be 0 if all trailing parameters were omitted, so don't
 207     // assert here but just use the correct value for it
 208     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 209
 210
 211     unsigned int num_of_cols = GetColumnCount();
 212     unsigned int num_of_rows = GetRowCount();
 213
 214     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
 215
 216     GtkWidget *table = gtk_table_new( num_of_rows, num_of_cols, FALSE );
 217     gtk_table_set_col_spacings( GTK_TABLE(table), 1 );
 218     gtk_table_set_row_spacings( GTK_TABLE(table), 1 );
 219     gtk_widget_show( table );
 220     gtk_container_add( GTK_CONTAINER(m_widget), table );
 221
 222     wxString label;
 223     GSList *radio_button_group = (GSList *) NULL;
 224     for (int i = 0; i < n; i++)
 225     {
 226         if ( i != 0 )
 227             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 228
 229         label.Empty();
 230         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 231         {
 232             if ( *pc != wxT('&') )
 233                 label += *pc;
 234         }
 235
 236         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
 237         gtk_widget_show( GTK_WIDGET(m_radio) );
 238
 239         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 240            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 241
 242         m_boxes.Append( (wxObject*) m_radio );
 243
 244         if (HasFlag(wxRA_SPECIFY_COLS))
 245         {
 246             int left = i%num_of_cols;
 247             int right = (i%num_of_cols) + 1;
 248             int top = i/num_of_cols;
 249             int bottom = (i/num_of_cols)+1;
 250             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 251                   GTK_FILL, GTK_FILL, 1, 1 );
 252         }
 253         else
 254         {
 255             int left = i/num_of_rows;
 256             int right = (i/num_of_rows) + 1;
 257             int top = i%num_of_rows;
 258             int bottom = (i%num_of_rows)+1;
 259             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 260                   GTK_FILL, GTK_FILL, 1, 1 );
 261         }
 262
 263         ConnectWidget( GTK_WIDGET(m_radio) );
 264
 265         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 266
 267         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 268             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 269
 270         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_in_event",
 271             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_in), (gpointer)this );
 272
 273         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_out_event",
 274             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_out), (gpointer)this );
 275     }
 276
 277     m_parent->DoAddChild( this );
 278
 279     PostCreation(size);
 280
 281     return true;
 282 }
 283
 284 wxRadioBox::~wxRadioBox()
 285 {
 286     wxList::compatibility_iterator node = m_boxes.GetFirst();
 287     while (node)
 288     {
 289         GtkWidget *button = GTK_WIDGET( node->GetData() );
 290         gtk_widget_destroy( button );
 291         node = node->GetNext();
 292     }
 293 }
 294
 295 bool wxRadioBox::Show(bool show)
 296 {
 297     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 298
 299     if (!wxControl::Show(show))
 300     {
 301         // nothing to do
 302         return false;
 303     }
 304
 305     if ( HasFlag(wxNO_BORDER) )
 306         gtk_widget_hide( m_widget );
 307
 308     wxList::compatibility_iterator node = m_boxes.GetFirst();
 309     while (node)
 310     {
 311         GtkWidget *button = GTK_WIDGET( node->GetData() );
 312
 313         if (show)
 314             gtk_widget_show( button );
 315         else
 316             gtk_widget_hide( button );
 317
 318         node = node->GetNext();
 319     }
 320
 321     return true;
 322 }
 323
 324 void wxRadioBox::SetFocus()
 325 {
 326     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 327
 328     if (m_boxes.GetCount() == 0) return;
 329
 330     wxList::compatibility_iterator node = m_boxes.GetFirst();
 331     while (node)
 332     {
 333         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 334         if (button->active)
 335         {
 336             gtk_widget_grab_focus( GTK_WIDGET(button) );
 337             return;
 338         }
 339         node = node->GetNext();
 340     }
 341 }
 342
 343 void wxRadioBox::SetSelection( int n )
 344 {
 345     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 346
 347     wxList::compatibility_iterator node = m_boxes.Item( n );
 348
 349     wxCHECK_RET( node, wxT("radiobox wrong index") );
 350
 351     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 352
 353     GtkDisableEvents();
 354
 355     gtk_toggle_button_set_active( button, 1 );
 356
 357     GtkEnableEvents();
 358 }
 359
 360 int wxRadioBox::GetSelection(void) const
 361 {
 362     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid radiobox") );
 363
 364     int count = 0;
 365
 366     wxList::compatibility_iterator node = m_boxes.GetFirst();
 367     while (node)
 368     {
 369         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 370         if (button->active) return count;
 371         count++;
 372         node = node->GetNext();
 373     }
 374
 375     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 376
 377     return wxNOT_FOUND;
 378 }
 379
 380 wxString wxRadioBox::GetString(unsigned int n) const
 381 {
 382     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid radiobox") );
 383
 384     wxList::compatibility_iterator node = m_boxes.Item( n );
 385
 386     wxCHECK_MSG( node, wxEmptyString, wxT("radiobox wrong index") );
 387
 388     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 389
 390     wxString str( label->label );
 391
 392     return str;
 393 }
 394
 395 void wxRadioBox::SetLabel( const wxString& label )
 396 {
 397     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 398
 399     GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
 400 }
 401
 402 void wxRadioBox::SetString(unsigned int item, const wxString& label)
 403 {
 404     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 405
 406     wxList::compatibility_iterator node = m_boxes.Item( item );
 407
 408     wxCHECK_RET( node, wxT("radiobox wrong index") );
 409
 410     GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 411
 412     gtk_label_set( g_label, wxGTK_CONV( label ) );
 413 }
 414
 415 bool wxRadioBox::Enable( bool enable )
 416 {
 417     if ( !wxControl::Enable( enable ) )
 418         return false;
 419
 420     wxList::compatibility_iterator node = m_boxes.GetFirst();
 421     while (node)
 422     {
 423         GtkButton *button = GTK_BUTTON( node->GetData() );
 424         GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 425
 426         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 427         gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 428         node = node->GetNext();
 429     }
 430
 431     return true;
 432 }
 433
 434 bool wxRadioBox::Enable(unsigned int item, bool enable)
 435 {
 436     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 437
 438     wxList::compatibility_iterator node = m_boxes.Item( item );
 439
 440     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 441
 442     GtkButton *button = GTK_BUTTON( node->GetData() );
 443     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 444
 445     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 446     gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 447
 448     return true;
 449 }
 450
 451 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 452 {
 453     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 454
 455     wxList::compatibility_iterator node = m_boxes.Item( item );
 456
 457     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 458
 459     GtkButton *button = GTK_BUTTON( node->GetData() );
 460
 461     // don't use GTK_WIDGET_IS_SENSITIVE() here, we want to return true even if
 462     // the parent radiobox is disabled
 463     return GTK_WIDGET_SENSITIVE(GTK_WIDGET(button));
 464 }
 465
 466 bool wxRadioBox::Show(unsigned int item, bool show)
 467 {
 468     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 469
 470     wxList::compatibility_iterator node = m_boxes.Item( item );
 471
 472     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 473
 474     GtkWidget *button = GTK_WIDGET( node->GetData() );
 475
 476     if (show)
 477         gtk_widget_show( button );
 478     else
 479         gtk_widget_hide( button );
 480
 481     return true;
 482 }
 483
 484 bool wxRadioBox::IsItemShown(unsigned int item) const
 485 {
 486     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 487
 488     wxList::compatibility_iterator node = m_boxes.Item( item );
 489
 490     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 491
 492     GtkButton *button = GTK_BUTTON( node->GetData() );
 493
 494     return GTK_WIDGET_VISIBLE(GTK_WIDGET(button));
 495 }
 496
 497 unsigned int wxRadioBox::GetCount() const
 498 {
 499     return m_boxes.GetCount();
 500 }
 501
 502 void wxRadioBox::GtkDisableEvents()
 503 {
 504     wxList::compatibility_iterator node = m_boxes.GetFirst();
 505     while (node)
 506     {
 507         gtk_signal_disconnect_by_func( GTK_OBJECT(node->GetData()),
 508            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 509
 510         node = node->GetNext();
 511     }
 512 }
 513
 514 void wxRadioBox::GtkEnableEvents()
 515 {
 516     wxList::compatibility_iterator node = m_boxes.GetFirst();
 517     while (node)
 518     {
 519         gtk_signal_connect( GTK_OBJECT(node->GetData()), "clicked",
 520            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 521
 522         node = node->GetNext();
 523     }
 524 }
 525
 526 void wxRadioBox::DoApplyWidgetStyle(GtkRcStyle *style)
 527 {
 528     gtk_widget_modify_style( m_widget, style );
 529
 530     wxList::compatibility_iterator node = m_boxes.GetFirst();
 531     while (node)
 532     {
 533         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 534
 535         gtk_widget_modify_style( widget, style );
 536         gtk_widget_modify_style( BUTTON_CHILD(node->GetData()), style );
 537
 538         node = node->GetNext();
 539     }
 540 }
 541
 542 #if wxUSE_TOOLTIPS
 543 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 544 {
 545     wxList::compatibility_iterator node = m_boxes.GetFirst();
 546     while (node)
 547     {
 548         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 549         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 550         node = node->GetNext();
 551     }
 552 }
 553 #endif // wxUSE_TOOLTIPS
 554
 555 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 556 {
 557     if (window == m_widget->window)
 558         return true;
 559
 560     wxList::compatibility_iterator node = m_boxes.GetFirst();
 561     while (node)
 562     {
 563         GtkWidget *button = GTK_WIDGET( node->GetData() );
 564
 565         if (window == button->window)
 566             return true;
 567
 568         node = node->GetNext();
 569     }
 570
 571     return false;
 572 }
 573
 574 void wxRadioBox::OnInternalIdle()
 575 {
 576     if ( m_lostFocus )
 577     {
 578         m_hasFocus = false;
 579         m_lostFocus = false;
 580
 581         wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
 582         event.SetEventObject( this );
 583
 584         (void)GetEventHandler()->ProcessEvent( event );
 585     }
 586
 587     if (g_delayedFocus == this)
 588     {
 589         if (GTK_WIDGET_REALIZED(m_widget))
 590         {
 591             g_delayedFocus = NULL;
 592             SetFocus();
 593         }
 594     }
 595 }
 596
 597 // static
 598 wxVisualAttributes
 599 wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 600 {
 601     wxVisualAttributes attr;
 602     // NB: we need toplevel window so that GTK+ can find the right style
 603     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 604     GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
 605     gtk_container_add(GTK_CONTAINER(wnd), widget);
 606     attr = GetDefaultAttributesFromGTKWidget(widget);
 607     gtk_widget_destroy(wnd);
 608     return attr;
 609 }
 610
 611 #endif // wxUSE_RADIOBOX