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 #ifdef __GNUG__
  11 #pragma implementation "radiobox.h"
  12 #endif
  13
  14 #include "wx/radiobox.h"
  15
  16 #if wxUSE_RADIOBOX
  17
  18 #include "wx/dialog.h"
  19 #include "wx/frame.h"
  20
  21 #include "gdk/gdk.h"
  22 #include "gtk/gtk.h"
  23 #include "wx/gtk/win_gtk.h"
  24
  25 //-----------------------------------------------------------------------------
  26 // idle system
  27 //-----------------------------------------------------------------------------
  28
  29 extern void wxapp_install_idle_handler();
  30 extern bool g_isIdle;
  31
  32 //-----------------------------------------------------------------------------
  33 // data
  34 //-----------------------------------------------------------------------------
  35
  36 extern bool   g_blockEventsOnDrag;
  37
  38 //-----------------------------------------------------------------------------
  39 // "clicked"
  40 //-----------------------------------------------------------------------------
  41
  42 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  43 {
  44     if (g_isIdle) wxapp_install_idle_handler();
  45
  46     if (!rb->m_hasVMT) return;
  47     if (g_blockEventsOnDrag) return;
  48
  49     if (rb->m_alreadySent)
  50     {
  51         rb->m_alreadySent = FALSE;
  52         return;
  53     }
  54
  55     rb->m_alreadySent = TRUE;
  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 // wxRadioBox
  66 //-----------------------------------------------------------------------------
  67
  68 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  69
  70 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  71     EVT_SIZE(wxRadioBox::OnSize)
  72 END_EVENT_TABLE()
  73
  74 wxRadioBox::wxRadioBox()
  75 {
  76 }
  77
  78 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  79                          const wxPoint &pos, const wxSize &size,
  80                          int n, const wxString choices[], int majorDim,
  81                          long style, const wxValidator& validator,
  82                          const wxString &name )
  83 {
  84     m_alreadySent = FALSE;
  85     m_needParent = TRUE;
  86     m_acceptsFocus = TRUE;
  87
  88     PreCreation( parent, id, pos, size, style, name );
  89
  90 #if wxUSE_VALIDATORS
  91     SetValidator( validator );
  92 #endif
  93
  94     m_widget = gtk_frame_new( title.mbc_str() );
  95
  96     m_majorDim = majorDim;
  97
  98     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  99
 100     wxString label;
 101     GSList *radio_button_group = (GSList *) NULL;
 102     for (int i = 0; i < n; i++)
 103     {
 104         if ( i != 0 )
 105             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 106
 107         label.Empty();
 108         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 109         {
 110             if ( *pc != _T('&') )
 111                 label += *pc;
 112         }
 113
 114         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 115
 116         m_boxes.Append( (wxObject*) m_radio );
 117
 118         ConnectWidget( GTK_WIDGET(m_radio) );
 119
 120         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 121
 122         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 123            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 124
 125         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow),
 126                          GTK_WIDGET(m_radio),
 127                          m_x+10, m_y+10+(i*24), 10, 10 );
 128     }
 129
 130     wxSize ls = LayoutItems();
 131
 132     wxSize newSize = size;
 133     if (newSize.x == -1) newSize.x = ls.x;
 134     if (newSize.y == -1) newSize.y = ls.y;
 135     SetSize( newSize.x, newSize.y );
 136
 137     m_parent->DoAddChild( this );
 138
 139     PostCreation();
 140
 141     SetLabel( title );
 142
 143     SetBackgroundColour( parent->GetBackgroundColour() );
 144     SetForegroundColour( parent->GetForegroundColour() );
 145     SetFont( parent->GetFont() );
 146
 147     Show( TRUE );
 148
 149     return TRUE;
 150 }
 151
 152 wxRadioBox::~wxRadioBox()
 153 {
 154     wxNode *node = m_boxes.First();
 155     while (node)
 156     {
 157         GtkWidget *button = GTK_WIDGET( node->Data() );
 158         gtk_widget_destroy( button );
 159         node = node->Next();
 160     }
 161 }
 162
 163 void wxRadioBox::OnSize( wxSizeEvent &event )
 164 {
 165     LayoutItems();
 166
 167     event.Skip();
 168 }
 169
 170 wxSize wxRadioBox::LayoutItems()
 171 {
 172     int x = 7;
 173     int y = 15;
 174
 175     if ( m_majorDim == 0 )
 176     {
 177         // avoid dividing by 0 below
 178         wxFAIL_MSG( _T("dimension of radiobox should not be 0!") );
 179
 180         m_majorDim = 1;
 181     }
 182
 183     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 184
 185     wxSize res( 0, 0 );
 186
 187     if (m_windowStyle & wxRA_HORIZONTAL)
 188     {
 189
 190         for (int j = 0; j < m_majorDim; j++)
 191         {
 192             y = 15;
 193
 194             int max_len = 0;
 195             wxNode *node = m_boxes.Nth( j*num_per_major );
 196             for (int i1 = 0; i1< num_per_major; i1++)
 197             {
 198                 GtkWidget *button = GTK_WIDGET( node->Data() );
 199                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 200                 GdkFont *font = m_widget->style->font;
 201                 int len = 22+gdk_string_measure( font, label->label );
 202                 if (len > max_len) max_len = len;
 203
 204                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 205                 y += 22;
 206
 207                 node = node->Next();
 208                 if (!node) break;
 209             }
 210
 211             // we don't know the max_len before
 212
 213             node = m_boxes.Nth( j*num_per_major );
 214             for (int i2 = 0; i2< num_per_major; i2++)
 215             {
 216                 GtkWidget *button = GTK_WIDGET( node->Data() );
 217
 218                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 219
 220                 node = node->Next();
 221                 if (!node) break;
 222             }
 223
 224             if (y > res.y) res.y = y;
 225
 226             x += max_len + 2;
 227         }
 228
 229         res.x = x+4;
 230         res.y += 9;
 231     }
 232     else
 233     {
 234         int max = 0;
 235
 236         wxNode *node = m_boxes.First();
 237         while (node)
 238         {
 239             GtkButton *button = GTK_BUTTON( node->Data() );
 240             GtkLabel *label = GTK_LABEL( button->child );
 241
 242             GdkFont *font = m_widget->style->font;
 243             int len = 22+gdk_string_measure( font, label->label );
 244             if (len > max) max = len;
 245
 246             node = node->Next();
 247         }
 248
 249         node = m_boxes.First();
 250         while (node)
 251         {
 252             GtkWidget *button = GTK_WIDGET( node->Data() );
 253
 254             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 255             x += max;
 256
 257             node = node->Next();
 258         }
 259         res.x = x+4;
 260         res.y = 42;
 261     }
 262
 263     return res;
 264 }
 265
 266 bool wxRadioBox::Show( bool show )
 267 {
 268     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 269
 270     wxWindow::Show( show );
 271
 272     if ((m_windowStyle & wxNO_BORDER) != 0)
 273         gtk_widget_hide( m_widget );
 274
 275     wxNode *node = m_boxes.First();
 276     while (node)
 277     {
 278         GtkWidget *button = GTK_WIDGET( node->Data() );
 279
 280         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 281
 282         node = node->Next();
 283     }
 284
 285     return TRUE;
 286 }
 287
 288 int wxRadioBox::FindString( const wxString &s ) const
 289 {
 290     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 291
 292     int count = 0;
 293
 294     wxNode *node = m_boxes.First();
 295     while (node)
 296     {
 297         GtkButton *button = GTK_BUTTON( node->Data() );
 298
 299         GtkLabel *label = GTK_LABEL( button->child );
 300         if (s == label->label) return count;
 301         count++;
 302
 303         node = node->Next();
 304     }
 305
 306     return -1;
 307 }
 308
 309 void wxRadioBox::SetFocus()
 310 {
 311     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 312
 313     if (m_boxes.GetCount() == 0) return;
 314
 315     wxNode *node = m_boxes.First();
 316     while (node)
 317     {
 318         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 319         if (button->active)
 320         {
 321             gtk_widget_grab_focus( GTK_WIDGET(button) );
 322
 323             return;
 324         }
 325         node = node->Next();
 326     }
 327
 328 }
 329
 330 void wxRadioBox::SetSelection( int n )
 331 {
 332     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 333
 334     wxNode *node = m_boxes.Nth( n );
 335
 336     wxCHECK_RET( node, _T("radiobox wrong index") );
 337
 338     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 339
 340     DisableEvents();
 341
 342     gtk_toggle_button_set_state( button, 1 );
 343
 344     EnableEvents();
 345 }
 346
 347 int wxRadioBox::GetSelection(void) const
 348 {
 349     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 350
 351     int count = 0;
 352
 353     wxNode *node = m_boxes.First();
 354     while (node)
 355     {
 356         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 357         if (button->active) return count;
 358         count++;
 359         node = node->Next();
 360     }
 361
 362     wxFAIL_MSG( _T("wxRadioBox none selected") );
 363
 364     return -1;
 365 }
 366
 367 wxString wxRadioBox::GetString( int n ) const
 368 {
 369     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 370
 371     wxNode *node = m_boxes.Nth( n );
 372
 373     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 374
 375     GtkButton *button = GTK_BUTTON( node->Data() );
 376     GtkLabel *label = GTK_LABEL( button->child );
 377
 378     return wxString( label->label );
 379 }
 380
 381 wxString wxRadioBox::GetLabel( int item ) const
 382 {
 383     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 384
 385     return GetString( item );
 386 }
 387
 388 void wxRadioBox::SetLabel( const wxString& label )
 389 {
 390     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 391
 392     wxControl::SetLabel( label );
 393
 394     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 395 }
 396
 397 void wxRadioBox::SetLabel( int item, const wxString& label )
 398 {
 399     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 400
 401     wxNode *node = m_boxes.Nth( item );
 402
 403     wxCHECK_RET( node, _T("radiobox wrong index") );
 404
 405     GtkButton *button = GTK_BUTTON( node->Data() );
 406     GtkLabel *g_label = GTK_LABEL( button->child );
 407
 408     gtk_label_set( g_label, label.mbc_str() );
 409 }
 410
 411 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 412 {
 413     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 414 }
 415
 416 bool wxRadioBox::Enable( bool enable )
 417 {
 418     if ( !wxControl::Enable( enable ) )
 419         return FALSE;
 420
 421     wxNode *node = m_boxes.First();
 422     while (node)
 423     {
 424         GtkButton *button = GTK_BUTTON( node->Data() );
 425         GtkWidget *label = button->child;
 426         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 427         gtk_widget_set_sensitive( label, enable );
 428         node = node->Next();
 429     }
 430
 431     return TRUE;
 432 }
 433
 434 void wxRadioBox::Enable( int item, bool enable )
 435 {
 436     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 437
 438     wxNode *node = m_boxes.Nth( item );
 439
 440     wxCHECK_RET( node, _T("radiobox wrong index") );
 441
 442     GtkButton *button = GTK_BUTTON( node->Data() );
 443     GtkWidget *label = button->child;
 444     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 445     gtk_widget_set_sensitive( label, enable );
 446 }
 447
 448 void wxRadioBox::Show( int item, bool show )
 449 {
 450     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 451
 452     wxNode *node = m_boxes.Nth( item );
 453
 454     wxCHECK_RET( node, _T("radiobox wrong index") );
 455
 456     GtkWidget *button = GTK_WIDGET( node->Data() );
 457
 458     if (show)
 459         gtk_widget_show( button );
 460     else
 461         gtk_widget_hide( button );
 462 }
 463
 464 wxString wxRadioBox::GetStringSelection(void) const
 465 {
 466     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 467
 468     wxNode *node = m_boxes.First();
 469     while (node)
 470     {
 471         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 472         if (button->active)
 473         {
 474             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 475             return label->label;
 476         }
 477         node = node->Next();
 478     }
 479
 480     wxFAIL_MSG( _T("wxRadioBox none selected") );
 481     return _T("");
 482 }
 483
 484 bool wxRadioBox::SetStringSelection( const wxString &s )
 485 {
 486     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 487
 488     int res = FindString( s );
 489     if (res == -1) return FALSE;
 490     SetSelection( res );
 491
 492     return TRUE;
 493 }
 494
 495 int wxRadioBox::Number(void) const
 496 {
 497     return m_boxes.Number();
 498 }
 499
 500 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 501 {
 502     return 1;
 503 }
 504
 505 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 506 {
 507     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 508 }
 509
 510 void wxRadioBox::DisableEvents()
 511 {
 512     wxNode *node = m_boxes.First();
 513     while (node)
 514     {
 515         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 516            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 517
 518         node = node->Next();
 519     }
 520 }
 521
 522 void wxRadioBox::EnableEvents()
 523 {
 524     wxNode *node = m_boxes.First();
 525     while (node)
 526     {
 527         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 528            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 529
 530         node = node->Next();
 531     }
 532 }
 533
 534 void wxRadioBox::ApplyWidgetStyle()
 535 {
 536     SetWidgetStyle();
 537
 538     gtk_widget_set_style( m_widget, m_widgetStyle );
 539
 540     wxNode *node = m_boxes.First();
 541     while (node)
 542     {
 543         GtkWidget *widget = GTK_WIDGET( node->Data() );
 544         gtk_widget_set_style( widget, m_widgetStyle );
 545
 546         GtkButton *button = GTK_BUTTON( node->Data() );
 547         gtk_widget_set_style( button->child, m_widgetStyle );
 548
 549         node = node->Next();
 550     }
 551 }
 552
 553 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 554 {
 555     if (window == m_widget->window) return TRUE;
 556
 557     wxNode *node = m_boxes.First();
 558     while (node)
 559     {
 560         GtkWidget *button = GTK_WIDGET( node->Data() );
 561
 562         if (window == button->window) return TRUE;
 563
 564         node = node->Next();
 565     }
 566
 567     return FALSE;
 568 }
 569
 570 #endif