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->HandleWindowEvent(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 *WXUNUSED(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->HandleWindowEvent( event );
 137     }
 138
 139     return FALSE;
 140 }
 141 }
 142
 143 extern "C" {
 144 static gint gtk_radiobutton_focus_out( GtkWidget *WXUNUSED(widget),
 145                                        GdkEvent *WXUNUSED(event),
 146                                        wxRadioBox *win )
 147 {
 148   //    wxASSERT_MSG( win->m_hasFocus, wxT("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(wxT("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     if ( HasFlag(wxNO_BORDER) )
 206     {
 207         // If we don't do this here, the wxNO_BORDER style is ignored in Show()
 208         gtk_frame_set_shadow_type(GTK_FRAME(m_widget), GTK_SHADOW_NONE);
 209     }
 210
 211     // majorDim may be 0 if all trailing parameters were omitted, so don't
 212     // assert here but just use the correct value for it
 213     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 214
 215
 216     unsigned int num_of_cols = GetColumnCount();
 217     unsigned int num_of_rows = GetRowCount();
 218
 219     GtkRadioButton *m_radio = NULL;
 220
 221     GtkWidget *table = gtk_table_new( num_of_rows, num_of_cols, FALSE );
 222     gtk_table_set_col_spacings( GTK_TABLE(table), 1 );
 223     gtk_table_set_row_spacings( GTK_TABLE(table), 1 );
 224     gtk_widget_show( table );
 225     gtk_container_add( GTK_CONTAINER(m_widget), table );
 226
 227     wxString label;
 228     GSList *radio_button_group = NULL;
 229     for (int i = 0; i < n; i++)
 230     {
 231         if ( i != 0 )
 232             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 233
 234         label.Empty();
 235         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 236         {
 237             if ( *pc != wxT('&') )
 238                 label += *pc;
 239         }
 240
 241         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
 242         gtk_widget_show( GTK_WIDGET(m_radio) );
 243
 244         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 245            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 246
 247         m_boxes.Append( (wxObject*) m_radio );
 248
 249         if (HasFlag(wxRA_SPECIFY_COLS))
 250         {
 251             int left = i%num_of_cols;
 252             int right = (i%num_of_cols) + 1;
 253             int top = i/num_of_cols;
 254             int bottom = (i/num_of_cols)+1;
 255             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 256                   GTK_FILL, GTK_FILL, 1, 1 );
 257         }
 258         else
 259         {
 260             int left = i/num_of_rows;
 261             int right = (i/num_of_rows) + 1;
 262             int top = i%num_of_rows;
 263             int bottom = (i%num_of_rows)+1;
 264             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 265                   GTK_FILL, GTK_FILL, 1, 1 );
 266         }
 267
 268         ConnectWidget( GTK_WIDGET(m_radio) );
 269
 270         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 271
 272         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 273             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 274
 275         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_in_event",
 276             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_in), (gpointer)this );
 277
 278         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_out_event",
 279             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_out), (gpointer)this );
 280     }
 281
 282     m_parent->DoAddChild( this );
 283
 284     PostCreation(size);
 285
 286     return true;
 287 }
 288
 289 wxRadioBox::~wxRadioBox()
 290 {
 291     wxList::compatibility_iterator node = m_boxes.GetFirst();
 292     while (node)
 293     {
 294         GtkWidget *button = GTK_WIDGET( node->GetData() );
 295         gtk_widget_destroy( button );
 296         node = node->GetNext();
 297     }
 298 }
 299
 300 bool wxRadioBox::Show(bool show)
 301 {
 302     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 303
 304     if (!wxControl::Show(show))
 305     {
 306         // nothing to do
 307         return false;
 308     }
 309
 310     if ( HasFlag(wxNO_BORDER) )
 311         gtk_widget_hide( m_widget );
 312
 313     wxList::compatibility_iterator node = m_boxes.GetFirst();
 314     while (node)
 315     {
 316         GtkWidget *button = GTK_WIDGET( node->GetData() );
 317
 318         if (show)
 319             gtk_widget_show( button );
 320         else
 321             gtk_widget_hide( button );
 322
 323         node = node->GetNext();
 324     }
 325
 326     return true;
 327 }
 328
 329 void wxRadioBox::SetFocus()
 330 {
 331     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 332
 333     if (m_boxes.GetCount() == 0) return;
 334
 335     wxList::compatibility_iterator node = m_boxes.GetFirst();
 336     while (node)
 337     {
 338         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 339         if (button->active)
 340         {
 341             gtk_widget_grab_focus( GTK_WIDGET(button) );
 342             return;
 343         }
 344         node = node->GetNext();
 345     }
 346 }
 347
 348 void wxRadioBox::SetSelection( int n )
 349 {
 350     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 351
 352     wxList::compatibility_iterator node = m_boxes.Item( n );
 353
 354     wxCHECK_RET( node, wxT("radiobox wrong index") );
 355
 356     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 357
 358     GtkDisableEvents();
 359
 360     gtk_toggle_button_set_active( button, 1 );
 361
 362     GtkEnableEvents();
 363 }
 364
 365 int wxRadioBox::GetSelection(void) const
 366 {
 367     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid radiobox") );
 368
 369     int count = 0;
 370
 371     wxList::compatibility_iterator node = m_boxes.GetFirst();
 372     while (node)
 373     {
 374         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 375         if (button->active) return count;
 376         count++;
 377         node = node->GetNext();
 378     }
 379
 380     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 381
 382     return wxNOT_FOUND;
 383 }
 384
 385 wxString wxRadioBox::GetString(unsigned int n) const
 386 {
 387     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid radiobox") );
 388
 389     wxList::compatibility_iterator node = m_boxes.Item( n );
 390
 391     wxCHECK_MSG( node, wxEmptyString, wxT("radiobox wrong index") );
 392
 393     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 394
 395     wxString str( label->label );
 396
 397     return str;
 398 }
 399
 400 void wxRadioBox::SetLabel( const wxString& label )
 401 {
 402     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 403
 404     GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
 405 }
 406
 407 void wxRadioBox::SetString(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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 unsigned 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     wxList::compatibility_iterator node = m_boxes.GetFirst();
 536     while (node)
 537     {
 538         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 539
 540         gtk_widget_modify_style( widget, style );
 541         gtk_widget_modify_style( BUTTON_CHILD(node->GetData()), style );
 542
 543         node = node->GetNext();
 544     }
 545 }
 546
 547 #if wxUSE_TOOLTIPS
 548 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 549 {
 550     wxList::compatibility_iterator node = m_boxes.GetFirst();
 551     while (node)
 552     {
 553         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 554         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), NULL );
 555         node = node->GetNext();
 556     }
 557 }
 558 #endif // wxUSE_TOOLTIPS
 559
 560 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 561 {
 562     if (window == m_widget->window)
 563         return true;
 564
 565     wxList::compatibility_iterator node = m_boxes.GetFirst();
 566     while (node)
 567     {
 568         GtkWidget *button = GTK_WIDGET( node->GetData() );
 569
 570         if (window == button->window)
 571             return true;
 572
 573         node = node->GetNext();
 574     }
 575
 576     return false;
 577 }
 578
 579 void wxRadioBox::OnInternalIdle()
 580 {
 581     if ( m_lostFocus )
 582     {
 583         m_hasFocus = false;
 584         m_lostFocus = false;
 585
 586         wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
 587         event.SetEventObject( this );
 588
 589         (void)HandleWindowEvent( event );
 590     }
 591
 592     if (g_delayedFocus == this)
 593     {
 594         if (GTK_WIDGET_REALIZED(m_widget))
 595         {
 596             g_delayedFocus = NULL;
 597             SetFocus();
 598         }
 599     }
 600 }
 601
 602 // static
 603 wxVisualAttributes
 604 wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 605 {
 606     wxVisualAttributes attr;
 607     // NB: we need toplevel window so that GTK+ can find the right style
 608     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 609     GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
 610     gtk_container_add(GTK_CONTAINER(wnd), widget);
 611     attr = GetDefaultAttributesFromGTKWidget(widget);
 612     gtk_widget_destroy(wnd);
 613     return attr;
 614 }
 615
 616 #endif // wxUSE_RADIOBOX