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     if (!PreCreation( parent, pos, size ) ||
  89         !CreateBase( parent, id, pos, size, style, validator, name ))
  90     {
  91         wxFAIL_MSG( T("wxRadioBox creation failed") );
  92         return FALSE;
  93     }
  94
  95     m_widget = gtk_frame_new( title.mbc_str() );
  96
  97     m_majorDim = majorDim;
  98
  99     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
 100
 101     wxString label;
 102     GSList *radio_button_group = (GSList *) NULL;
 103     for (int i = 0; i < n; i++)
 104     {
 105         if ( i != 0 )
 106             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 107
 108         label.Empty();
 109         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 110         {
 111             if ( *pc != T('&') )
 112                 label += *pc;
 113         }
 114
 115         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 116
 117         m_boxes.Append( (wxObject*) m_radio );
 118
 119         ConnectWidget( GTK_WIDGET(m_radio) );
 120
 121         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 122
 123         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 124            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 125
 126         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow),
 127                          GTK_WIDGET(m_radio),
 128                          m_x+10, m_y+10+(i*24), 10, 10 );
 129     }
 130
 131     wxSize ls = LayoutItems();
 132
 133     wxSize newSize = size;
 134     if (newSize.x == -1) newSize.x = ls.x;
 135     if (newSize.y == -1) newSize.y = ls.y;
 136     SetSize( newSize.x, newSize.y );
 137
 138     m_parent->DoAddChild( this );
 139
 140     PostCreation();
 141
 142     SetLabel( title );
 143
 144     SetBackgroundColour( parent->GetBackgroundColour() );
 145     SetForegroundColour( parent->GetForegroundColour() );
 146     SetFont( parent->GetFont() );
 147
 148     Show( TRUE );
 149
 150     return TRUE;
 151 }
 152
 153 wxRadioBox::~wxRadioBox()
 154 {
 155     wxNode *node = m_boxes.First();
 156     while (node)
 157     {
 158         GtkWidget *button = GTK_WIDGET( node->Data() );
 159         gtk_widget_destroy( button );
 160         node = node->Next();
 161     }
 162 }
 163
 164 void wxRadioBox::OnSize( wxSizeEvent &event )
 165 {
 166     LayoutItems();
 167
 168     event.Skip();
 169 }
 170
 171 wxSize wxRadioBox::LayoutItems()
 172 {
 173     int x = 7;
 174     int y = 15;
 175
 176     if ( m_majorDim == 0 )
 177     {
 178         // avoid dividing by 0 below
 179         wxFAIL_MSG( T("dimension of radiobox should not be 0!") );
 180
 181         m_majorDim = 1;
 182     }
 183
 184     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 185
 186     wxSize res( 0, 0 );
 187
 188     int num_of_cols = 0;
 189     int num_of_rows = 0;
 190     if (HasFlag(wxRA_SPECIFY_COLS))
 191     {
 192         num_of_cols = m_majorDim;
 193         num_of_rows = num_per_major;
 194     }
 195     else
 196     {
 197         num_of_cols = num_per_major;
 198         num_of_rows = m_majorDim;
 199     }
 200
 201     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 202          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 203     {
 204         for (int j = 0; j < num_of_cols; j++)
 205         {
 206             y = 15;
 207
 208             int max_len = 0;
 209             wxNode *node = m_boxes.Nth( j*num_of_rows );
 210             for (int i1 = 0; i1< num_of_rows; i1++)
 211             {
 212                 GtkWidget *button = GTK_WIDGET( node->Data() );
 213                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 214                 GdkFont *font = m_widget->style->font;
 215                 int len = 22+gdk_string_measure( font, label->label );
 216                 if (len > max_len) max_len = len;
 217
 218                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 219                 y += 22;
 220
 221                 node = node->Next();
 222                 if (!node) break;
 223             }
 224
 225             // we don't know the max_len before
 226
 227             node = m_boxes.Nth( j*num_of_rows );
 228             for (int i2 = 0; i2< num_of_rows; i2++)
 229             {
 230                 GtkWidget *button = GTK_WIDGET( node->Data() );
 231
 232                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 233
 234                 node = node->Next();
 235                 if (!node) break;
 236             }
 237
 238             if (y > res.y) res.y = y;
 239
 240             x += max_len + 2;
 241         }
 242
 243         res.x = x+4;
 244         res.y += 9;
 245     }
 246     else
 247     {
 248         int max = 0;
 249
 250         wxNode *node = m_boxes.First();
 251         while (node)
 252         {
 253             GtkButton *button = GTK_BUTTON( node->Data() );
 254             GtkLabel *label = GTK_LABEL( button->child );
 255
 256             GdkFont *font = m_widget->style->font;
 257             int len = 22+gdk_string_measure( font, label->label );
 258             if (len > max) max = len;
 259
 260             node = node->Next();
 261         }
 262
 263         node = m_boxes.First();
 264         while (node)
 265         {
 266             GtkWidget *button = GTK_WIDGET( node->Data() );
 267
 268             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 269             x += max;
 270
 271             node = node->Next();
 272         }
 273         res.x = x+4;
 274         res.y = 40;
 275     }
 276
 277     return res;
 278 }
 279
 280 bool wxRadioBox::Show( bool show )
 281 {
 282     wxCHECK_MSG( m_widget != NULL, FALSE, T("invalid radiobox") );
 283
 284     wxWindow::Show( show );
 285
 286     if ((m_windowStyle & wxNO_BORDER) != 0)
 287         gtk_widget_hide( m_widget );
 288
 289     wxNode *node = m_boxes.First();
 290     while (node)
 291     {
 292         GtkWidget *button = GTK_WIDGET( node->Data() );
 293
 294         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 295
 296         node = node->Next();
 297     }
 298
 299     return TRUE;
 300 }
 301
 302 int wxRadioBox::FindString( const wxString &s ) const
 303 {
 304     wxCHECK_MSG( m_widget != NULL, -1, T("invalid radiobox") );
 305
 306     int count = 0;
 307
 308     wxNode *node = m_boxes.First();
 309     while (node)
 310     {
 311         GtkButton *button = GTK_BUTTON( node->Data() );
 312
 313         GtkLabel *label = GTK_LABEL( button->child );
 314         if (s == label->label) return count;
 315         count++;
 316
 317         node = node->Next();
 318     }
 319
 320     return -1;
 321 }
 322
 323 void wxRadioBox::SetFocus()
 324 {
 325     wxCHECK_RET( m_widget != NULL, T("invalid radiobox") );
 326
 327     if (m_boxes.GetCount() == 0) return;
 328
 329     wxNode *node = m_boxes.First();
 330     while (node)
 331     {
 332         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 333         if (button->active)
 334         {
 335             gtk_widget_grab_focus( GTK_WIDGET(button) );
 336
 337             return;
 338         }
 339         node = node->Next();
 340     }
 341
 342 }
 343
 344 void wxRadioBox::SetSelection( int n )
 345 {
 346     wxCHECK_RET( m_widget != NULL, T("invalid radiobox") );
 347
 348     wxNode *node = m_boxes.Nth( n );
 349
 350     wxCHECK_RET( node, T("radiobox wrong index") );
 351
 352     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 353
 354     DisableEvents();
 355
 356     gtk_toggle_button_set_state( button, 1 );
 357
 358     EnableEvents();
 359 }
 360
 361 int wxRadioBox::GetSelection(void) const
 362 {
 363     wxCHECK_MSG( m_widget != NULL, -1, T("invalid radiobox") );
 364
 365     int count = 0;
 366
 367     wxNode *node = m_boxes.First();
 368     while (node)
 369     {
 370         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 371         if (button->active) return count;
 372         count++;
 373         node = node->Next();
 374     }
 375
 376     wxFAIL_MSG( T("wxRadioBox none selected") );
 377
 378     return -1;
 379 }
 380
 381 wxString wxRadioBox::GetString( int n ) const
 382 {
 383     wxCHECK_MSG( m_widget != NULL, T(""), T("invalid radiobox") );
 384
 385     wxNode *node = m_boxes.Nth( n );
 386
 387     wxCHECK_MSG( node, T(""), T("radiobox wrong index") );
 388
 389     GtkButton *button = GTK_BUTTON( node->Data() );
 390     GtkLabel *label = GTK_LABEL( button->child );
 391
 392     return wxString( label->label );
 393 }
 394
 395 wxString wxRadioBox::GetLabel( int item ) const
 396 {
 397     wxCHECK_MSG( m_widget != NULL, T(""), T("invalid radiobox") );
 398
 399     return GetString( item );
 400 }
 401
 402 void wxRadioBox::SetLabel( const wxString& label )
 403 {
 404     wxCHECK_RET( m_widget != NULL, T("invalid radiobox") );
 405
 406     wxControl::SetLabel( label );
 407
 408     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 409 }
 410
 411 void wxRadioBox::SetLabel( int item, const wxString& label )
 412 {
 413     wxCHECK_RET( m_widget != NULL, T("invalid radiobox") );
 414
 415     wxNode *node = m_boxes.Nth( item );
 416
 417     wxCHECK_RET( node, T("radiobox wrong index") );
 418
 419     GtkButton *button = GTK_BUTTON( node->Data() );
 420     GtkLabel *g_label = GTK_LABEL( button->child );
 421
 422     gtk_label_set( g_label, label.mbc_str() );
 423 }
 424
 425 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 426 {
 427     wxFAIL_MSG(T("wxRadioBox::SetLabel not implemented."));
 428 }
 429
 430 bool wxRadioBox::Enable( bool enable )
 431 {
 432     if ( !wxControl::Enable( enable ) )
 433         return FALSE;
 434
 435     wxNode *node = m_boxes.First();
 436     while (node)
 437     {
 438         GtkButton *button = GTK_BUTTON( node->Data() );
 439         GtkWidget *label = button->child;
 440         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 441         gtk_widget_set_sensitive( label, enable );
 442         node = node->Next();
 443     }
 444
 445     return TRUE;
 446 }
 447
 448 void wxRadioBox::Enable( int item, bool enable )
 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     GtkButton *button = GTK_BUTTON( node->Data() );
 457     GtkWidget *label = button->child;
 458     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 459     gtk_widget_set_sensitive( label, enable );
 460 }
 461
 462 void wxRadioBox::Show( int item, bool show )
 463 {
 464     wxCHECK_RET( m_widget != NULL, T("invalid radiobox") );
 465
 466     wxNode *node = m_boxes.Nth( item );
 467
 468     wxCHECK_RET( node, T("radiobox wrong index") );
 469
 470     GtkWidget *button = GTK_WIDGET( node->Data() );
 471
 472     if (show)
 473         gtk_widget_show( button );
 474     else
 475         gtk_widget_hide( button );
 476 }
 477
 478 wxString wxRadioBox::GetStringSelection() const
 479 {
 480     wxCHECK_MSG( m_widget != NULL, T(""), T("invalid radiobox") );
 481
 482     wxNode *node = m_boxes.First();
 483     while (node)
 484     {
 485         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 486         if (button->active)
 487         {
 488             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 489             return label->label;
 490         }
 491         node = node->Next();
 492     }
 493
 494     wxFAIL_MSG( T("wxRadioBox none selected") );
 495     return T("");
 496 }
 497
 498 bool wxRadioBox::SetStringSelection( const wxString &s )
 499 {
 500     wxCHECK_MSG( m_widget != NULL, FALSE, T("invalid radiobox") );
 501
 502     int res = FindString( s );
 503     if (res == -1) return FALSE;
 504     SetSelection( res );
 505
 506     return TRUE;
 507 }
 508
 509 int wxRadioBox::Number() const
 510 {
 511     return m_boxes.Number();
 512 }
 513
 514 int wxRadioBox::GetNumberOfRowsOrCols() const
 515 {
 516     return 1;
 517 }
 518
 519 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 520 {
 521     wxFAIL_MSG(T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 522 }
 523
 524 void wxRadioBox::DisableEvents()
 525 {
 526     wxNode *node = m_boxes.First();
 527     while (node)
 528     {
 529         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 530            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 531
 532         node = node->Next();
 533     }
 534 }
 535
 536 void wxRadioBox::EnableEvents()
 537 {
 538     wxNode *node = m_boxes.First();
 539     while (node)
 540     {
 541         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 542            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 543
 544         node = node->Next();
 545     }
 546 }
 547
 548 void wxRadioBox::ApplyWidgetStyle()
 549 {
 550     SetWidgetStyle();
 551
 552     gtk_widget_set_style( m_widget, m_widgetStyle );
 553
 554     wxNode *node = m_boxes.First();
 555     while (node)
 556     {
 557         GtkWidget *widget = GTK_WIDGET( node->Data() );
 558         gtk_widget_set_style( widget, m_widgetStyle );
 559
 560         GtkButton *button = GTK_BUTTON( node->Data() );
 561         gtk_widget_set_style( button->child, m_widgetStyle );
 562
 563         node = node->Next();
 564     }
 565 }
 566
 567 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 568 {
 569     if (window == m_widget->window) return TRUE;
 570
 571     wxNode *node = m_boxes.First();
 572     while (node)
 573     {
 574         GtkWidget *button = GTK_WIDGET( node->Data() );
 575
 576         if (window == button->window) return TRUE;
 577
 578         node = node->Next();
 579     }
 580
 581     return FALSE;
 582 }
 583
 584 #endif