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     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 167
 168     wxSize res( 0, 0 );
 169
 170     if (m_windowStyle & wxRA_HORIZONTAL)
 171     {
 172
 173         for (int j = 0; j < m_majorDim; j++)
 174         {
 175             y = 15;
 176
 177             int max_len = 0;
 178             wxNode *node = m_boxes.Nth( j*num_per_major );
 179             for (int i1 = 0; i1< num_per_major; i1++)
 180             {
 181                 GtkWidget *button = GTK_WIDGET( node->Data() );
 182                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 183                 GdkFont *font = m_widget->style->font;
 184                 int len = 22+gdk_string_measure( font, label->label );
 185                 if (len > max_len) max_len = len;
 186
 187                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 188                 y += 22;
 189
 190                 node = node->Next();
 191                 if (!node) break;
 192             }
 193
 194             // we don't know the max_len before
 195
 196             node = m_boxes.Nth( j*num_per_major );
 197             for (int i2 = 0; i2< num_per_major; i2++)
 198             {
 199                 GtkWidget *button = GTK_WIDGET( node->Data() );
 200
 201                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 202
 203                 node = node->Next();
 204                 if (!node) break;
 205             }
 206
 207             if (y > res.y) res.y = y;
 208
 209             x += max_len + 2;
 210         }
 211
 212         res.x = x+4;
 213         res.y += 9;
 214     }
 215     else
 216     {
 217         int max = 0;
 218
 219         wxNode *node = m_boxes.First();
 220         while (node)
 221         {
 222             GtkButton *button = GTK_BUTTON( node->Data() );
 223             GtkLabel *label = GTK_LABEL( button->child );
 224
 225             GdkFont *font = m_widget->style->font;
 226             int len = 22+gdk_string_measure( font, label->label );
 227             if (len > max) max = len;
 228
 229             node = node->Next();
 230         }
 231
 232         node = m_boxes.First();
 233         while (node)
 234         {
 235             GtkWidget *button = GTK_WIDGET( node->Data() );
 236
 237             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 238             x += max;
 239
 240             node = node->Next();
 241         }
 242         res.x = x+4;
 243         res.y = 42;
 244     }
 245
 246     return res;
 247 }
 248
 249 bool wxRadioBox::Show( bool show )
 250 {
 251     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 252
 253     wxWindow::Show( show );
 254
 255     if ((m_windowStyle & wxNO_BORDER) != 0)
 256         gtk_widget_hide( m_widget );
 257
 258     wxNode *node = m_boxes.First();
 259     while (node)
 260     {
 261         GtkWidget *button = GTK_WIDGET( node->Data() );
 262
 263         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 264
 265         node = node->Next();
 266     }
 267
 268     return TRUE;
 269 }
 270
 271 int wxRadioBox::FindString( const wxString &s ) const
 272 {
 273     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 274
 275     int count = 0;
 276
 277     wxNode *node = m_boxes.First();
 278     while (node)
 279     {
 280         GtkButton *button = GTK_BUTTON( node->Data() );
 281
 282         GtkLabel *label = GTK_LABEL( button->child );
 283         if (s == label->label) return count;
 284         count++;
 285
 286         node = node->Next();
 287     }
 288
 289     return -1;
 290 }
 291
 292 void wxRadioBox::SetFocus()
 293 {
 294     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 295
 296     if (m_boxes.GetCount() == 0) return;
 297
 298     wxNode *node = m_boxes.First();
 299     while (node)
 300     {
 301         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 302         if (button->active)
 303         {
 304             gtk_widget_grab_focus( GTK_WIDGET(button) );
 305
 306             return;
 307         }
 308         node = node->Next();
 309     }
 310
 311 }
 312
 313 void wxRadioBox::SetSelection( int n )
 314 {
 315     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 316
 317     wxNode *node = m_boxes.Nth( n );
 318
 319     wxCHECK_RET( node, _T("radiobox wrong index") );
 320
 321     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 322
 323     gtk_toggle_button_set_state( button, 1 );
 324 }
 325
 326 int wxRadioBox::GetSelection(void) const
 327 {
 328     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 329
 330     int count = 0;
 331
 332     wxNode *node = m_boxes.First();
 333     while (node)
 334     {
 335         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 336         if (button->active) return count;
 337         count++;
 338         node = node->Next();
 339     }
 340
 341     wxFAIL_MSG( _T("wxRadioBox none selected") );
 342
 343     return -1;
 344 }
 345
 346 wxString wxRadioBox::GetString( int n ) const
 347 {
 348     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 349
 350     wxNode *node = m_boxes.Nth( n );
 351
 352     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 353
 354     GtkButton *button = GTK_BUTTON( node->Data() );
 355     GtkLabel *label = GTK_LABEL( button->child );
 356
 357     return wxString( label->label );
 358 }
 359
 360 wxString wxRadioBox::GetLabel( int item ) const
 361 {
 362     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 363
 364     return GetString( item );
 365 }
 366
 367 void wxRadioBox::SetLabel( const wxString& label )
 368 {
 369     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 370
 371     wxControl::SetLabel( label );
 372
 373     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 374 }
 375
 376 void wxRadioBox::SetLabel( int item, const wxString& label )
 377 {
 378     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 379
 380     wxNode *node = m_boxes.Nth( item );
 381
 382     wxCHECK_RET( node, _T("radiobox wrong index") );
 383
 384     GtkButton *button = GTK_BUTTON( node->Data() );
 385     GtkLabel *g_label = GTK_LABEL( button->child );
 386
 387     gtk_label_set( g_label, label.mbc_str() );
 388 }
 389
 390 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 391 {
 392     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 393 }
 394
 395 bool wxRadioBox::Enable( bool enable )
 396 {
 397     if ( !wxControl::Enable( enable ) )
 398         return FALSE;
 399
 400     wxNode *node = m_boxes.First();
 401     while (node)
 402     {
 403         GtkButton *button = GTK_BUTTON( node->Data() );
 404         GtkWidget *label = button->child;
 405         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 406         gtk_widget_set_sensitive( label, enable );
 407         node = node->Next();
 408     }
 409
 410     return TRUE;
 411 }
 412
 413 void wxRadioBox::Enable( int item, bool enable )
 414 {
 415     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 416
 417     wxNode *node = m_boxes.Nth( item );
 418
 419     wxCHECK_RET( node, _T("radiobox wrong index") );
 420
 421     GtkButton *button = GTK_BUTTON( node->Data() );
 422     GtkWidget *label = button->child;
 423     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 424     gtk_widget_set_sensitive( label, enable );
 425 }
 426
 427 void wxRadioBox::Show( int item, bool show )
 428 {
 429     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 430
 431     wxNode *node = m_boxes.Nth( item );
 432
 433     wxCHECK_RET( node, _T("radiobox wrong index") );
 434
 435     GtkWidget *button = GTK_WIDGET( node->Data() );
 436
 437     if (show)
 438         gtk_widget_show( button );
 439     else
 440         gtk_widget_hide( button );
 441 }
 442
 443 wxString wxRadioBox::GetStringSelection(void) const
 444 {
 445     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 446
 447     wxNode *node = m_boxes.First();
 448     while (node)
 449     {
 450         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 451         if (button->active)
 452         {
 453             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 454             return label->label;
 455         }
 456         node = node->Next();
 457     }
 458
 459     wxFAIL_MSG( _T("wxRadioBox none selected") );
 460     return _T("");
 461 }
 462
 463 bool wxRadioBox::SetStringSelection( const wxString &s )
 464 {
 465     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 466
 467     int res = FindString( s );
 468     if (res == -1) return FALSE;
 469     SetSelection( res );
 470
 471     return TRUE;
 472 }
 473
 474 int wxRadioBox::Number(void) const
 475 {
 476     return m_boxes.Number();
 477 }
 478
 479 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 480 {
 481     return 1;
 482 }
 483
 484 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 485 {
 486     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 487 }
 488
 489 void wxRadioBox::ApplyWidgetStyle()
 490 {
 491     SetWidgetStyle();
 492
 493     gtk_widget_set_style( m_widget, m_widgetStyle );
 494
 495     wxNode *node = m_boxes.First();
 496     while (node)
 497     {
 498         GtkWidget *widget = GTK_WIDGET( node->Data() );
 499         gtk_widget_set_style( widget, m_widgetStyle );
 500
 501         GtkButton *button = GTK_BUTTON( node->Data() );
 502         gtk_widget_set_style( button->child, m_widgetStyle );
 503
 504         node = node->Next();
 505     }
 506 }
 507
 508 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 509 {
 510     if (window == m_widget->window) return TRUE;
 511
 512     wxNode *node = m_boxes.First();
 513     while (node)
 514     {
 515         GtkWidget *button = GTK_WIDGET( node->Data() );
 516
 517         if (window == button->window) return TRUE;
 518
 519         node = node->Next();
 520     }
 521
 522     return FALSE;
 523 }
 524
 525 #endif