src/gtk1/radiobox.cpp

   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 #include "wx/dialog.h"
  18 #include "wx/frame.h"
  19 #include "wx/log.h"
  20
  21 #include "wx/gtk/private.h"
  22 #include <gdk/gdkkeysyms.h>
  23
  24 #include "wx/gtk/win_gtk.h"
  25
  26 //-----------------------------------------------------------------------------
  27 // idle system
  28 //-----------------------------------------------------------------------------
  29
  30 extern void wxapp_install_idle_handler();
  31 extern bool g_isIdle;
  32
  33 //-----------------------------------------------------------------------------
  34 // data
  35 //-----------------------------------------------------------------------------
  36
  37 extern bool          g_blockEventsOnDrag;
  38 extern wxWindowGTK  *g_delayedFocus;
  39
  40 //-----------------------------------------------------------------------------
  41 // "clicked"
  42 //-----------------------------------------------------------------------------
  43
  44 extern "C" {
  45 static void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioBox *rb )
  46 {
  47     if (g_isIdle) wxapp_install_idle_handler();
  48
  49     if (!rb->m_hasVMT) return;
  50     if (g_blockEventsOnDrag) return;
  51
  52     if (!button->active) return;
  53
  54     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  55     event.SetInt( rb->GetSelection() );
  56     event.SetString( rb->GetStringSelection() );
  57     event.SetEventObject( rb );
  58     rb->GetEventHandler()->ProcessEvent(event);
  59 }
  60 }
  61
  62 //-----------------------------------------------------------------------------
  63 // "key_press_event"
  64 //-----------------------------------------------------------------------------
  65
  66 extern "C" {
  67 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
  68 {
  69     if (g_isIdle)
  70         wxapp_install_idle_handler();
  71
  72     if (!rb->m_hasVMT) return FALSE;
  73     if (g_blockEventsOnDrag) return FALSE;
  74
  75     if ((gdk_event->keyval != GDK_Up) &&
  76         (gdk_event->keyval != GDK_Down) &&
  77         (gdk_event->keyval != GDK_Left) &&
  78         (gdk_event->keyval != GDK_Right))
  79     {
  80         return FALSE;
  81     }
  82
  83     wxList::compatibility_iterator node = rb->m_boxes.Find( (wxObject*) widget );
  84     if (!node)
  85     {
  86         return FALSE;
  87     }
  88
  89     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
  90
  91     if ((gdk_event->keyval == GDK_Up) ||
  92         (gdk_event->keyval == GDK_Left))
  93     {
  94         if (node == rb->m_boxes.GetFirst())
  95             node = rb->m_boxes.GetLast();
  96         else
  97             node = node->GetPrevious();
  98     }
  99     else
 100     {
 101         if (node == rb->m_boxes.GetLast())
 102             node = rb->m_boxes.GetFirst();
 103         else
 104             node = node->GetNext();
 105     }
 106
 107     GtkWidget *button = (GtkWidget*) node->GetData();
 108
 109     gtk_widget_grab_focus( button );
 110
 111     return TRUE;
 112 }
 113 }
 114
 115 extern "C" {
 116 static gint gtk_radiobutton_focus_in( GtkWidget *widget,
 117                                       GdkEvent *WXUNUSED(event),
 118                                       wxRadioBox *win )
 119 {
 120     if ( win->m_lostFocus )
 121     {
 122         // no, we didn't really lose it
 123         win->m_lostFocus = FALSE;
 124     }
 125     else if ( !win->m_hasFocus )
 126     {
 127         win->m_hasFocus = true;
 128
 129         wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
 130         event.SetEventObject( win );
 131
 132         // never stop the signal emission, it seems to break the kbd handling
 133         // inside the radiobox
 134         (void)win->GetEventHandler()->ProcessEvent( event );
 135     }
 136
 137     return FALSE;
 138 }
 139 }
 140
 141 extern "C" {
 142 static gint gtk_radiobutton_focus_out( GtkWidget *widget,
 143                                        GdkEvent *WXUNUSED(event),
 144                                        wxRadioBox *win )
 145 {
 146   //    wxASSERT_MSG( win->m_hasFocus, _T("got focus out without any focus in?") );
 147   // Replace with a warning, else we dump core a lot!
 148   //  if (!win->m_hasFocus)
 149   //      wxLogWarning(_T("Radiobox got focus out without any focus in.") );
 150
 151     // we might have lost the focus, but may be not - it may have just gone to
 152     // another button in the same radiobox, so we'll check for it in the next
 153     // idle iteration (leave m_hasFocus == true for now)
 154     win->m_lostFocus = true;
 155
 156     return FALSE;
 157 }
 158 }
 159
 160 //-----------------------------------------------------------------------------
 161 // wxRadioBox
 162 //-----------------------------------------------------------------------------
 163
 164 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
 165
 166 void wxRadioBox::Init()
 167 {
 168     m_needParent = true;
 169     m_acceptsFocus = true;
 170
 171     m_hasFocus =
 172     m_lostFocus = false;
 173 }
 174
 175 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id,
 176                          const wxString& title,
 177                          const wxPoint &pos, const wxSize &size,
 178                          const wxArrayString& choices, int majorDim,
 179                          long style, const wxValidator& validator,
 180                          const wxString &name )
 181 {
 182     wxCArrayString chs(choices);
 183
 184     return Create( parent, id, title, pos, size, chs.GetCount(),
 185                    chs.GetStrings(), majorDim, style, validator, name );
 186 }
 187
 188 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
 189                          const wxPoint &pos, const wxSize &size,
 190                          int n, const wxString choices[], int majorDim,
 191                          long style, const wxValidator& validator,
 192                          const wxString &name )
 193 {
 194     if (!PreCreation( parent, pos, size ) ||
 195         !CreateBase( parent, id, pos, size, style, validator, name ))
 196     {
 197         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
 198         return false;
 199     }
 200
 201     m_widget = gtk_frame_new( wxGTK_CONV( title ) );
 202
 203     // majorDim may be 0 if all trailing parameters were omitted, so don't
 204     // assert here but just use the correct value for it
 205     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 206
 207
 208     int num_of_cols = GetColumnCount();
 209     int num_of_rows = GetRowCount();
 210
 211     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
 212
 213     GtkWidget *table = gtk_table_new( num_of_rows, num_of_cols, FALSE );
 214     gtk_table_set_col_spacings( GTK_TABLE(table), 1 );
 215     gtk_table_set_row_spacings( GTK_TABLE(table), 1 );
 216     gtk_widget_show( table );
 217     gtk_container_add( GTK_CONTAINER(m_widget), table );
 218
 219     wxString label;
 220     GSList *radio_button_group = (GSList *) NULL;
 221     for (int i = 0; i < n; i++)
 222     {
 223         if ( i != 0 )
 224             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 225
 226         label.Empty();
 227         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 228         {
 229             if ( *pc != wxT('&') )
 230                 label += *pc;
 231         }
 232
 233         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
 234         gtk_widget_show( GTK_WIDGET(m_radio) );
 235
 236         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 237            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 238
 239         m_boxes.Append( (wxObject*) m_radio );
 240
 241         if (HasFlag(wxRA_SPECIFY_COLS))
 242         {
 243             int left = i%num_of_cols;
 244             int right = (i%num_of_cols) + 1;
 245             int top = i/num_of_cols;
 246             int bottom = (i/num_of_cols)+1;
 247             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 248                   GTK_FILL, GTK_FILL, 1, 1 );
 249         }
 250         else
 251         {
 252             int left = i/num_of_rows;
 253             int right = (i/num_of_rows) + 1;
 254             int top = i%num_of_rows;
 255             int bottom = (i%num_of_rows)+1;
 256             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 257                   GTK_FILL, GTK_FILL, 1, 1 );
 258         }
 259
 260         ConnectWidget( GTK_WIDGET(m_radio) );
 261
 262         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 263
 264         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 265             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 266
 267         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_in_event",
 268             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_in), (gpointer)this );
 269
 270         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_out_event",
 271             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_out), (gpointer)this );
 272     }
 273
 274     m_parent->DoAddChild( this );
 275
 276     SetLabel( title );
 277
 278     PostCreation(size);
 279
 280     return true;
 281 }
 282
 283 wxRadioBox::~wxRadioBox()
 284 {
 285     wxList::compatibility_iterator node = m_boxes.GetFirst();
 286     while (node)
 287     {
 288         GtkWidget *button = GTK_WIDGET( node->GetData() );
 289         gtk_widget_destroy( button );
 290         node = node->GetNext();
 291     }
 292 }
 293
 294 bool wxRadioBox::Show( bool show )
 295 {
 296     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 297
 298     if (!wxControl::Show(show))
 299     {
 300         // nothing to do
 301         return false;
 302     }
 303
 304     if ( HasFlag(wxNO_BORDER) )
 305         gtk_widget_hide( m_widget );
 306
 307     wxList::compatibility_iterator node = m_boxes.GetFirst();
 308     while (node)
 309     {
 310         GtkWidget *button = GTK_WIDGET( node->GetData() );
 311
 312         if (show)
 313             gtk_widget_show( button );
 314         else
 315             gtk_widget_hide( button );
 316
 317         node = node->GetNext();
 318     }
 319
 320     return true;
 321 }
 322
 323 void wxRadioBox::SetFocus()
 324 {
 325     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 326
 327     if (m_boxes.GetCount() == 0) return;
 328
 329     wxList::compatibility_iterator node = m_boxes.GetFirst();
 330     while (node)
 331     {
 332         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 333         if (button->active)
 334         {
 335             gtk_widget_grab_focus( GTK_WIDGET(button) );
 336             return;
 337         }
 338         node = node->GetNext();
 339     }
 340 }
 341
 342 void wxRadioBox::SetSelection( int n )
 343 {
 344     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 345
 346     wxList::compatibility_iterator node = m_boxes.Item( n );
 347
 348     wxCHECK_RET( node, wxT("radiobox wrong index") );
 349
 350     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 351
 352     GtkDisableEvents();
 353
 354     gtk_toggle_button_set_active( button, 1 );
 355
 356     GtkEnableEvents();
 357 }
 358
 359 int wxRadioBox::GetSelection(void) const
 360 {
 361     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid radiobox") );
 362
 363     int count = 0;
 364
 365     wxList::compatibility_iterator node = m_boxes.GetFirst();
 366     while (node)
 367     {
 368         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 369         if (button->active) return count;
 370         count++;
 371         node = node->GetNext();
 372     }
 373
 374     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 375
 376     return wxNOT_FOUND;
 377 }
 378
 379 wxString wxRadioBox::GetString( int n ) const
 380 {
 381     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid radiobox") );
 382
 383     wxList::compatibility_iterator node = m_boxes.Item( n );
 384
 385     wxCHECK_MSG( node, wxEmptyString, wxT("radiobox wrong index") );
 386
 387     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 388
 389 #ifdef __WXGTK20__
 390     wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
 391 #else
 392     wxString str( label->label );
 393 #endif
 394
 395     return str;
 396 }
 397
 398 void wxRadioBox::SetLabel( const wxString& label )
 399 {
 400     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 401
 402     wxControl::SetLabel( label );
 403
 404     gtk_frame_set_label( GTK_FRAME(m_widget), wxGTK_CONV( wxControl::GetLabel() ) );
 405 }
 406
 407 void wxRadioBox::SetString( int item, const wxString& label )
 408 {
 409     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 410
 411     wxList::compatibility_iterator node = m_boxes.Item( item );
 412
 413     wxCHECK_RET( node, wxT("radiobox wrong index") );
 414
 415     GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 416
 417     gtk_label_set( g_label, wxGTK_CONV( label ) );
 418 }
 419
 420 bool wxRadioBox::Enable( bool enable )
 421 {
 422     if ( !wxControl::Enable( enable ) )
 423         return false;
 424
 425     wxList::compatibility_iterator node = m_boxes.GetFirst();
 426     while (node)
 427     {
 428         GtkButton *button = GTK_BUTTON( node->GetData() );
 429         GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 430
 431         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 432         gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 433         node = node->GetNext();
 434     }
 435
 436     return true;
 437 }
 438
 439 bool wxRadioBox::Enable( int item, bool enable )
 440 {
 441     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 442
 443     wxList::compatibility_iterator node = m_boxes.Item( item );
 444
 445     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 446
 447     GtkButton *button = GTK_BUTTON( node->GetData() );
 448     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 449
 450     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 451     gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 452
 453     return true;
 454 }
 455
 456 bool wxRadioBox::IsItemEnabled(int item) const
 457 {
 458     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 459
 460     wxList::compatibility_iterator node = m_boxes.Item( item );
 461
 462     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 463
 464     GtkButton *button = GTK_BUTTON( node->GetData() );
 465
 466     // don't use GTK_WIDGET_IS_SENSITIVE() here, we want to return true even if
 467     // the parent radiobox is disabled
 468     return GTK_WIDGET_SENSITIVE(GTK_WIDGET(button));
 469 }
 470
 471 bool wxRadioBox::Show( int item, bool show )
 472 {
 473     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 474
 475     wxList::compatibility_iterator node = m_boxes.Item( item );
 476
 477     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 478
 479     GtkWidget *button = GTK_WIDGET( node->GetData() );
 480
 481     if (show)
 482         gtk_widget_show( button );
 483     else
 484         gtk_widget_hide( button );
 485
 486     return true;
 487 }
 488
 489 bool wxRadioBox::IsItemShown(int item) const
 490 {
 491     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 492
 493     wxList::compatibility_iterator node = m_boxes.Item( item );
 494
 495     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 496
 497     GtkButton *button = GTK_BUTTON( node->GetData() );
 498
 499     return GTK_WIDGET_VISIBLE(GTK_WIDGET(button));
 500 }
 501
 502 int wxRadioBox::GetCount() const
 503 {
 504     return m_boxes.GetCount();
 505 }
 506
 507 void wxRadioBox::GtkDisableEvents()
 508 {
 509     wxList::compatibility_iterator node = m_boxes.GetFirst();
 510     while (node)
 511     {
 512         gtk_signal_disconnect_by_func( GTK_OBJECT(node->GetData()),
 513            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 514
 515         node = node->GetNext();
 516     }
 517 }
 518
 519 void wxRadioBox::GtkEnableEvents()
 520 {
 521     wxList::compatibility_iterator node = m_boxes.GetFirst();
 522     while (node)
 523     {
 524         gtk_signal_connect( GTK_OBJECT(node->GetData()), "clicked",
 525            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 526
 527         node = node->GetNext();
 528     }
 529 }
 530
 531 void wxRadioBox::DoApplyWidgetStyle(GtkRcStyle *style)
 532 {
 533     gtk_widget_modify_style( m_widget, style );
 534
 535 #ifdef __WXGTK20__
 536     gtk_widget_modify_style(GTK_FRAME(m_widget)->label_widget, style);
 537 #endif
 538
 539     wxList::compatibility_iterator node = m_boxes.GetFirst();
 540     while (node)
 541     {
 542         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 543
 544         gtk_widget_modify_style( widget, style );
 545         gtk_widget_modify_style( BUTTON_CHILD(node->GetData()), style );
 546
 547         node = node->GetNext();
 548     }
 549 }
 550
 551 #if wxUSE_TOOLTIPS
 552 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 553 {
 554     wxList::compatibility_iterator node = m_boxes.GetFirst();
 555     while (node)
 556     {
 557         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 558         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 559         node = node->GetNext();
 560     }
 561 }
 562 #endif // wxUSE_TOOLTIPS
 563
 564 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 565 {
 566     if (window == m_widget->window)
 567         return true;
 568
 569     wxList::compatibility_iterator node = m_boxes.GetFirst();
 570     while (node)
 571     {
 572         GtkWidget *button = GTK_WIDGET( node->GetData() );
 573
 574         if (window == button->window)
 575             return true;
 576
 577         node = node->GetNext();
 578     }
 579
 580     return false;
 581 }
 582
 583 void wxRadioBox::OnInternalIdle()
 584 {
 585     if ( m_lostFocus )
 586     {
 587         m_hasFocus = false;
 588         m_lostFocus = false;
 589
 590         wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
 591         event.SetEventObject( this );
 592
 593         (void)GetEventHandler()->ProcessEvent( event );
 594     }
 595
 596     if (g_delayedFocus == this)
 597     {
 598         if (GTK_WIDGET_REALIZED(m_widget))
 599         {
 600             g_delayedFocus = NULL;
 601             SetFocus();
 602         }
 603     }
 604 }
 605
 606 // static
 607 wxVisualAttributes
 608 wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 609 {
 610     wxVisualAttributes attr;
 611     // NB: we need toplevel window so that GTK+ can find the right style
 612     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 613     GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
 614     gtk_container_add(GTK_CONTAINER(wnd), widget);
 615     attr = GetDefaultAttributesFromGTKWidget(widget);
 616     gtk_widget_destroy(wnd);
 617     return attr;
 618 }
 619
 620 #endif // wxUSE_RADIOBOX