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 "gdk/gdkkeysyms.h"
  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
  39 //-----------------------------------------------------------------------------
  40 // "clicked"
  41 //-----------------------------------------------------------------------------
  42
  43 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  44 {
  45     if (g_isIdle) wxapp_install_idle_handler();
  46
  47     if (!rb->m_hasVMT) return;
  48     if (g_blockEventsOnDrag) return;
  49
  50     if (rb->m_alreadySent)
  51     {
  52         rb->m_alreadySent = FALSE;
  53         return;
  54     }
  55
  56     rb->m_alreadySent = TRUE;
  57
  58     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  59     event.SetInt( rb->GetSelection() );
  60     event.SetString( rb->GetStringSelection() );
  61     event.SetEventObject( rb );
  62     rb->GetEventHandler()->ProcessEvent(event);
  63 }
  64
  65 //-----------------------------------------------------------------------------
  66 // wxRadioBox
  67 //-----------------------------------------------------------------------------
  68
  69 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  70
  71 wxRadioBox::wxRadioBox()
  72 {
  73 }
  74
  75 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  76                          const wxPoint &pos, const wxSize &size,
  77                          int n, const wxString choices[], int majorDim,
  78                          long style, const wxValidator& validator,
  79                          const wxString &name )
  80 {
  81     m_alreadySent = FALSE;
  82     m_needParent = TRUE;
  83     m_acceptsFocus = TRUE;
  84
  85     if (!PreCreation( parent, pos, size ) ||
  86         !CreateBase( parent, id, pos, size, style, validator, name ))
  87     {
  88         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
  89         return FALSE;
  90     }
  91
  92     m_widget = gtk_frame_new( title.mbc_str() );
  93
  94     m_majorDim = majorDim;
  95
  96     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  97
  98     wxString label;
  99     GSList *radio_button_group = (GSList *) NULL;
 100     for (int i = 0; i < n; i++)
 101     {
 102         if ( i != 0 )
 103             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 104
 105         label.Empty();
 106         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 107         {
 108             if ( *pc != wxT('&') )
 109                 label += *pc;
 110         }
 111
 112         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 113
 114         m_boxes.Append( (wxObject*) m_radio );
 115
 116         ConnectWidget( GTK_WIDGET(m_radio) );
 117
 118         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 119
 120         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 121             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 122
 123         gtk_pizza_put( GTK_PIZZA(m_parent->m_wxwindow),
 124                          GTK_WIDGET(m_radio),
 125                          m_x+10, m_y+10+(i*24), 10, 10 );
 126     }
 127
 128     wxSize ls = LayoutItems();
 129
 130     wxSize newSize = size;
 131     if (newSize.x == -1) newSize.x = ls.x;
 132     if (newSize.y == -1) newSize.y = ls.y;
 133     SetSize( newSize.x, newSize.y );
 134
 135     m_parent->DoAddChild( this );
 136
 137     PostCreation();
 138
 139     SetLabel( title );
 140
 141     SetBackgroundColour( parent->GetBackgroundColour() );
 142     SetForegroundColour( parent->GetForegroundColour() );
 143     SetFont( parent->GetFont() );
 144
 145     Show( TRUE );
 146
 147     return TRUE;
 148 }
 149
 150 wxRadioBox::~wxRadioBox()
 151 {
 152     wxNode *node = m_boxes.First();
 153     while (node)
 154     {
 155         GtkWidget *button = GTK_WIDGET( node->Data() );
 156         gtk_widget_destroy( button );
 157         node = node->Next();
 158     }
 159 }
 160
 161 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 162 {
 163     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 164
 165     LayoutItems();
 166 }
 167
 168 wxSize wxRadioBox::LayoutItems()
 169 {
 170     int x = 7;
 171     int y = 15;
 172
 173     if ( m_majorDim == 0 )
 174     {
 175         // avoid dividing by 0 below
 176         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 177
 178         m_majorDim = 1;
 179     }
 180
 181     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 182
 183     wxSize res( 0, 0 );
 184
 185     int num_of_cols = 0;
 186     int num_of_rows = 0;
 187     if (HasFlag(wxRA_SPECIFY_COLS))
 188     {
 189         num_of_cols = m_majorDim;
 190         num_of_rows = num_per_major;
 191     }
 192     else
 193     {
 194         num_of_cols = num_per_major;
 195         num_of_rows = m_majorDim;
 196     }
 197
 198     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 199          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 200     {
 201         for (int j = 0; j < num_of_cols; j++)
 202         {
 203             y = 15;
 204
 205             int max_len = 0;
 206             wxNode *node = m_boxes.Nth( j*num_of_rows );
 207             for (int i1 = 0; i1< num_of_rows; i1++)
 208             {
 209                 GtkWidget *button = GTK_WIDGET( node->Data() );
 210                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 211                 GdkFont *font = m_widget->style->font;
 212                 int len = 22+gdk_string_measure( font, label->label );
 213                 if (len > max_len) max_len = len;
 214
 215                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 216                 y += 22;
 217
 218                 node = node->Next();
 219                 if (!node) break;
 220             }
 221
 222             // we don't know the max_len before
 223
 224             node = m_boxes.Nth( j*num_of_rows );
 225             for (int i2 = 0; i2< num_of_rows; i2++)
 226             {
 227                 GtkWidget *button = GTK_WIDGET( node->Data() );
 228
 229                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 230
 231                 node = node->Next();
 232                 if (!node) break;
 233             }
 234
 235             if (y > res.y) res.y = y;
 236
 237             x += max_len + 2;
 238         }
 239
 240         res.x = x+4;
 241         res.y += 9;
 242     }
 243     else
 244     {
 245         int max = 0;
 246
 247         wxNode *node = m_boxes.First();
 248         while (node)
 249         {
 250             GtkButton *button = GTK_BUTTON( node->Data() );
 251             GtkLabel *label = GTK_LABEL( button->child );
 252
 253             GdkFont *font = m_widget->style->font;
 254             int len = 22+gdk_string_measure( font, label->label );
 255             if (len > max) max = len;
 256
 257             node = node->Next();
 258         }
 259
 260         node = m_boxes.First();
 261         while (node)
 262         {
 263             GtkWidget *button = GTK_WIDGET( node->Data() );
 264
 265             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 266             x += max;
 267
 268             node = node->Next();
 269         }
 270         res.x = x+4;
 271         res.y = 40;
 272     }
 273
 274     return res;
 275 }
 276
 277 bool wxRadioBox::Show( bool show )
 278 {
 279     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 280
 281     if (!wxControl::Show(show))
 282     {
 283         // nothing to do
 284         return FALSE;
 285     }
 286
 287     if ((m_windowStyle & wxNO_BORDER) != 0)
 288         gtk_widget_hide( m_widget );
 289
 290     wxNode *node = m_boxes.First();
 291     while (node)
 292     {
 293         GtkWidget *button = GTK_WIDGET( node->Data() );
 294
 295         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 296
 297         node = node->Next();
 298     }
 299
 300     return TRUE;
 301 }
 302
 303 int wxRadioBox::FindString( const wxString &s ) const
 304 {
 305     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 306
 307     int count = 0;
 308
 309     wxNode *node = m_boxes.First();
 310     while (node)
 311     {
 312         GtkButton *button = GTK_BUTTON( node->Data() );
 313
 314         GtkLabel *label = GTK_LABEL( button->child );
 315         if (s == label->label) return count;
 316         count++;
 317
 318         node = node->Next();
 319     }
 320
 321     return -1;
 322 }
 323
 324 void wxRadioBox::SetFocus()
 325 {
 326     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 327
 328     if (m_boxes.GetCount() == 0) return;
 329
 330     wxNode *node = m_boxes.First();
 331     while (node)
 332     {
 333         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 334         if (button->active)
 335         {
 336             gtk_widget_grab_focus( GTK_WIDGET(button) );
 337             return;
 338         }
 339         node = node->Next();
 340     }
 341
 342 }
 343
 344 void wxRadioBox::SetSelection( int n )
 345 {
 346     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 347
 348     wxNode *node = m_boxes.Nth( n );
 349
 350     wxCHECK_RET( node, wxT("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, wxT("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( wxT("wxRadioBox none selected") );
 377
 378     return -1;
 379 }
 380
 381 wxString wxRadioBox::GetString( int n ) const
 382 {
 383     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 384
 385     wxNode *node = m_boxes.Nth( n );
 386
 387     wxCHECK_MSG( node, wxT(""), wxT("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, wxT(""), wxT("invalid radiobox") );
 398
 399     return GetString( item );
 400 }
 401
 402 void wxRadioBox::SetLabel( const wxString& label )
 403 {
 404     wxCHECK_RET( m_widget != NULL, wxT("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, wxT("invalid radiobox") );
 414
 415     wxNode *node = m_boxes.Nth( item );
 416
 417     wxCHECK_RET( node, wxT("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(wxT("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, wxT("invalid radiobox") );
 451
 452     wxNode *node = m_boxes.Nth( item );
 453
 454     wxCHECK_RET( node, wxT("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, wxT("invalid radiobox") );
 465
 466     wxNode *node = m_boxes.Nth( item );
 467
 468     wxCHECK_RET( node, wxT("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, wxT(""), wxT("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( wxT("wxRadioBox none selected") );
 495     return wxT("");
 496 }
 497
 498 bool wxRadioBox::SetStringSelection( const wxString &s )
 499 {
 500     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("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(wxT("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