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