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 #include "wx/dialog.h"
  16 #include "wx/frame.h"
  17
  18 #include "gdk/gdk.h"
  19 #include "gtk/gtk.h"
  20 #include "wx/gtk/win_gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // idle system
  24 //-----------------------------------------------------------------------------
  25
  26 extern void wxapp_install_idle_handler();
  27 extern bool g_isIdle;
  28
  29 //-----------------------------------------------------------------------------
  30 // data
  31 //-----------------------------------------------------------------------------
  32
  33 extern bool   g_blockEventsOnDrag;
  34
  35 //-----------------------------------------------------------------------------
  36 // "clicked"
  37 //-----------------------------------------------------------------------------
  38
  39 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  40 {
  41     if (g_isIdle) wxapp_install_idle_handler();
  42
  43     if (!rb->HasVMT()) return;
  44     if (g_blockEventsOnDrag) return;
  45
  46     if (rb->m_alreadySent)
  47     {
  48         rb->m_alreadySent = FALSE;
  49         return;
  50     }
  51
  52     rb->m_alreadySent = TRUE;
  53
  54     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  55     event.SetInt( rb->GetSelection() );
  56     event.SetString( rb->GetStringSelection() );
  57     event.SetEventObject( rb );
  58     rb->GetEventHandler()->ProcessEvent(event);
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 // wxRadioBox
  63 //-----------------------------------------------------------------------------
  64
  65 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  66
  67 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  68     EVT_SIZE(wxRadioBox::OnSize)
  69 END_EVENT_TABLE()
  70
  71 wxRadioBox::wxRadioBox(void)
  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     PreCreation( parent, id, pos, size, style, name );
  86
  87     SetValidator( validator );
  88
  89     m_widget = gtk_frame_new( title.mbc_str() );
  90
  91     m_majorDim = majorDim;
  92
  93     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  94
  95     GSList *radio_button_group = (GSList *) NULL;
  96     for (int i = 0; i < n; i++)
  97     {
  98         if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  99
 100         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i].mbc_str() ) );
 101
 102         m_boxes.Append( (wxObject*) m_radio );
 103
 104         ConnectWidget( GTK_WIDGET(m_radio) );
 105
 106         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 107
 108         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 109            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 110
 111         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), m_x+10, m_y+10+(i*24) );
 112
 113     }
 114
 115     wxSize ls = LayoutItems();
 116
 117     wxSize newSize = size;
 118     if (newSize.x == -1) newSize.x = ls.x;
 119     if (newSize.y == -1) newSize.y = ls.y;
 120     SetSize( newSize.x, newSize.y );
 121
 122     m_parent->AddChild( this );
 123
 124     (m_parent->m_insertCallback)( m_parent, this );
 125
 126     PostCreation();
 127
 128     SetLabel( title );
 129
 130     SetBackgroundColour( parent->GetBackgroundColour() );
 131     SetForegroundColour( parent->GetForegroundColour() );
 132     SetFont( parent->GetFont() );
 133
 134     Show( TRUE );
 135
 136     return TRUE;
 137 }
 138
 139 wxRadioBox::~wxRadioBox(void)
 140 {
 141     wxNode *node = m_boxes.First();
 142     while (node)
 143     {
 144         GtkWidget *button = GTK_WIDGET( node->Data() );
 145         gtk_widget_destroy( button );
 146         node = node->Next();
 147     }
 148 }
 149
 150 void wxRadioBox::OnSize( wxSizeEvent &event )
 151 {
 152     wxControl::OnSize( event );
 153
 154     LayoutItems();
 155 }
 156
 157 wxSize wxRadioBox::LayoutItems()
 158 {
 159     int x = 7;
 160     int y = 15;
 161
 162     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 163
 164     wxSize res( 0, 0 );
 165
 166     if (m_windowStyle & wxRA_HORIZONTAL)
 167     {
 168
 169         for (int j = 0; j < m_majorDim; j++)
 170         {
 171             y = 15;
 172
 173             int max_len = 0;
 174             wxNode *node = m_boxes.Nth( j*num_per_major );
 175             for (int i1 = 0; i1< num_per_major; i1++)
 176             {
 177                 GtkWidget *button = GTK_WIDGET( node->Data() );
 178                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 179                 GdkFont *font = m_widget->style->font;
 180                 int len = 22+gdk_string_measure( font, label->label );
 181                 if (len > max_len) max_len = len;
 182
 183                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 184                 y += 20;
 185
 186                 node = node->Next();
 187                 if (!node) break;
 188             }
 189
 190             // we don't know the max_len before
 191
 192             node = m_boxes.Nth( j*num_per_major );
 193             for (int i2 = 0; i2< num_per_major; i2++)
 194             {
 195                 GtkWidget *button = GTK_WIDGET( node->Data() );
 196
 197                 gtk_widget_set_usize( button, max_len, 20 );
 198
 199                 node = node->Next();
 200                 if (!node) break;
 201             }
 202
 203             if (y > res.y) res.y = y;
 204
 205             x += max_len + 2;
 206         }
 207
 208         res.x = x+4;
 209         res.y += 9;
 210     }
 211     else
 212     {
 213         int max = 0;
 214
 215         wxNode *node = m_boxes.First();
 216         while (node)
 217         {
 218             GtkButton *button = GTK_BUTTON( node->Data() );
 219             GtkLabel *label = GTK_LABEL( button->child );
 220
 221             GdkFont *font = m_widget->style->font;
 222             int len = 22+gdk_string_measure( font, label->label );
 223             if (len > max) max = len;
 224
 225             node = node->Next();
 226         }
 227
 228         node = m_boxes.First();
 229         while (node)
 230         {
 231             GtkWidget *button = GTK_WIDGET( node->Data() );
 232
 233             gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 234             x += max;
 235             gtk_widget_set_usize( button, max, 20 );
 236
 237             node = node->Next();
 238         }
 239         res.x = x+4;
 240         res.y = 42;
 241     }
 242
 243     return res;
 244 }
 245
 246 bool wxRadioBox::Show( bool show )
 247 {
 248     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 249
 250     wxWindow::Show( show );
 251
 252     wxNode *node = m_boxes.First();
 253     while (node)
 254     {
 255         GtkWidget *button = GTK_WIDGET( node->Data() );
 256
 257         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 258
 259         node = node->Next();
 260     }
 261
 262     return TRUE;
 263 }
 264
 265 int wxRadioBox::FindString( const wxString &s ) const
 266 {
 267     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 268
 269     int count = 0;
 270
 271     wxNode *node = m_boxes.First();
 272     while (node)
 273     {
 274         GtkButton *button = GTK_BUTTON( node->Data() );
 275
 276         GtkLabel *label = GTK_LABEL( button->child );
 277         if (s == label->label) return count;
 278         count++;
 279
 280         node = node->Next();
 281     }
 282
 283     return -1;
 284 }
 285
 286 void wxRadioBox::SetFocus()
 287 {
 288     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 289
 290     if (m_boxes.GetCount() == 0) return;
 291
 292     wxNode *node = m_boxes.First();
 293     while (node)
 294     {
 295         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 296         if (button->active)
 297         {
 298             gtk_widget_grab_focus( GTK_WIDGET(button) );
 299
 300             return;
 301         }
 302         node = node->Next();
 303     }
 304
 305 }
 306
 307 void wxRadioBox::SetSelection( int n )
 308 {
 309     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 310
 311     wxNode *node = m_boxes.Nth( n );
 312
 313     wxCHECK_RET( node, _T("radiobox wrong index") );
 314
 315     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 316
 317     gtk_toggle_button_set_state( button, 1 );
 318 }
 319
 320 int wxRadioBox::GetSelection(void) const
 321 {
 322     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 323
 324     int count = 0;
 325
 326     wxNode *node = m_boxes.First();
 327     while (node)
 328     {
 329         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 330         if (button->active) return count;
 331         count++;
 332         node = node->Next();
 333     }
 334
 335     wxFAIL_MSG( _T("wxRadioBox none selected") );
 336
 337     return -1;
 338 }
 339
 340 wxString wxRadioBox::GetString( int n ) const
 341 {
 342     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 343
 344     wxNode *node = m_boxes.Nth( n );
 345
 346     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 347
 348     GtkButton *button = GTK_BUTTON( node->Data() );
 349     GtkLabel *label = GTK_LABEL( button->child );
 350
 351     return wxString( label->label );
 352 }
 353
 354 wxString wxRadioBox::GetLabel( int item ) const
 355 {
 356     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 357
 358     return GetString( item );
 359 }
 360
 361 void wxRadioBox::SetLabel( const wxString& label )
 362 {
 363     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 364
 365     wxControl::SetLabel( label );
 366
 367     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 368 }
 369
 370 void wxRadioBox::SetLabel( int item, const wxString& label )
 371 {
 372     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 373
 374     wxNode *node = m_boxes.Nth( item );
 375
 376     wxCHECK_RET( node, _T("radiobox wrong index") );
 377
 378     GtkButton *button = GTK_BUTTON( node->Data() );
 379     GtkLabel *g_label = GTK_LABEL( button->child );
 380
 381     gtk_label_set( g_label, label.mbc_str() );
 382 }
 383
 384 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 385 {
 386     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 387 }
 388
 389 void wxRadioBox::Enable( bool enable )
 390 {
 391     wxControl::Enable( enable );
 392
 393     wxNode *node = m_boxes.First();
 394     while (node)
 395     {
 396         GtkButton *button = GTK_BUTTON( node->Data() );
 397         GtkWidget *label = button->child;
 398         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 399         gtk_widget_set_sensitive( label, enable );
 400         node = node->Next();
 401     }
 402 }
 403
 404 void wxRadioBox::Enable( int item, bool enable )
 405 {
 406     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 407
 408     wxNode *node = m_boxes.Nth( item );
 409
 410     wxCHECK_RET( node, _T("radiobox wrong index") );
 411
 412     GtkButton *button = GTK_BUTTON( node->Data() );
 413     GtkWidget *label = button->child;
 414     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 415     gtk_widget_set_sensitive( label, enable );
 416 }
 417
 418 void wxRadioBox::Show( int item, bool show )
 419 {
 420     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 421
 422     wxNode *node = m_boxes.Nth( item );
 423
 424     wxCHECK_RET( node, _T("radiobox wrong index") );
 425
 426     GtkWidget *button = GTK_WIDGET( node->Data() );
 427
 428     if (show)
 429         gtk_widget_show( button );
 430     else
 431         gtk_widget_hide( button );
 432 }
 433
 434 wxString wxRadioBox::GetStringSelection(void) const
 435 {
 436     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 437
 438     wxNode *node = m_boxes.First();
 439     while (node)
 440     {
 441         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 442         if (button->active)
 443         {
 444             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 445             return label->label;
 446         }
 447         node = node->Next();
 448     }
 449
 450     wxFAIL_MSG( _T("wxRadioBox none selected") );
 451     return _T("");
 452 }
 453
 454 bool wxRadioBox::SetStringSelection( const wxString &s )
 455 {
 456     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 457
 458     int res = FindString( s );
 459     if (res == -1) return FALSE;
 460     SetSelection( res );
 461
 462     return TRUE;
 463 }
 464
 465 int wxRadioBox::Number(void) const
 466 {
 467     return m_boxes.Number();
 468 }
 469
 470 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 471 {
 472     return 1;
 473 }
 474
 475 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 476 {
 477     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 478 }
 479
 480 void wxRadioBox::ApplyWidgetStyle()
 481 {
 482     SetWidgetStyle();
 483
 484     gtk_widget_set_style( m_widget, m_widgetStyle );
 485
 486     wxNode *node = m_boxes.First();
 487     while (node)
 488     {
 489         GtkWidget *widget = GTK_WIDGET( node->Data() );
 490         gtk_widget_set_style( widget, m_widgetStyle );
 491
 492         GtkButton *button = GTK_BUTTON( node->Data() );
 493         gtk_widget_set_style( button->child, m_widgetStyle );
 494
 495         node = node->Next();
 496     }
 497 }
 498
 499 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 500 {
 501     if (window == m_widget->window) return TRUE;
 502
 503     wxNode *node = m_boxes.First();
 504     while (node)
 505     {
 506         GtkWidget *button = GTK_WIDGET( node->Data() );
 507
 508         if (window == button->window) return TRUE;
 509
 510         node = node->Next();
 511     }
 512
 513     return FALSE;
 514 }