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
  11 #ifdef __GNUG__
  12 #pragma implementation "radiobox.h"
  13 #endif
  14
  15 #include "wx/radiobox.h"
  16 #include "wx/dialog.h"
  17 #include "wx/frame.h"
  18 #include "wx/gtk/win_gtk.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // data
  22 //-----------------------------------------------------------------------------
  23
  24 extern bool   g_blockEventsOnDrag;
  25
  26 //-----------------------------------------------------------------------------
  27 // "clicked"
  28 //-----------------------------------------------------------------------------
  29
  30 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  31 {
  32     if (!rb->HasVMT()) return;
  33     if (g_blockEventsOnDrag) return;
  34
  35     if (rb->m_alreadySent)
  36     {
  37         rb->m_alreadySent = FALSE;
  38         return;
  39     }
  40
  41     rb->m_alreadySent = TRUE;
  42
  43     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  44     event.SetInt( rb->GetSelection() );
  45     wxString tmp( rb->GetStringSelection() );
  46     event.SetString( WXSTRINGCAST(tmp) );
  47     event.SetEventObject( rb );
  48     rb->GetEventHandler()->ProcessEvent(event);
  49 }
  50
  51 //-----------------------------------------------------------------------------
  52 // wxRadioBox
  53 //-----------------------------------------------------------------------------
  54
  55 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  56
  57 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  58     EVT_SIZE(wxRadioBox::OnSize)
  59 END_EVENT_TABLE()
  60
  61 wxRadioBox::wxRadioBox(void)
  62 {
  63 }
  64
  65 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  66                          const wxPoint &pos, const wxSize &size,
  67                          int n, const wxString choices[],
  68                          int WXUNUSED(majorDim),
  69                          long style, const wxValidator& validator,
  70                          const wxString &name )
  71 {
  72     m_alreadySent = FALSE;
  73     m_needParent = TRUE;
  74     m_acceptsFocus = TRUE;
  75
  76     PreCreation( parent, id, pos, size, style, name );
  77
  78     SetValidator( validator );
  79
  80     m_widget = gtk_frame_new( title );
  81
  82     int x = m_x+5;
  83     int y = m_y+15;
  84     int maxLen = 0;
  85     int height = 20;
  86     int width = 0;
  87
  88     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  89
  90     if (m_windowStyle & wxRA_HORIZONTAL)
  91     {
  92         GSList *radio_button_group = (GSList *) NULL;
  93         for (int i = 0; i < n; i++)
  94         {
  95             if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  96
  97             m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
  98
  99             m_boxes.Append( (wxObject*) m_radio );
 100
 101             ConnectWidget( GTK_WIDGET(m_radio) );
 102
 103             if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 104
 105             gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 106               GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 107
 108             gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), x, y );
 109
 110             int tmp = 25+gdk_string_measure( GTK_WIDGET(m_radio)->style->font, choices[i] );
 111             if (tmp > maxLen) maxLen = tmp;
 112
 113             width = m_width-10;
 114             if (size.x == -1) width = tmp;
 115             gtk_widget_set_usize( GTK_WIDGET(m_radio), width, 20 );
 116
 117             y += 20;
 118             height += 20;
 119         }
 120         width = maxLen + 10;
 121     }
 122     else
 123     {
 124         int max = 0;
 125         for (int i = 0; i < n; i++)
 126         {
 127             GdkFont *font = m_widget->style->font;
 128             int len = 27+gdk_string_measure( font, choices[i] );
 129             if (len > max) max = len;
 130         }
 131
 132         GSList *radio_button_group = (GSList *) NULL;
 133         for (int i = 0; i < n; i++)
 134         {
 135             if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 136
 137             m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
 138
 139             m_boxes.Append( (wxObject*) m_radio );
 140
 141             ConnectWidget( GTK_WIDGET(m_radio) );
 142
 143             if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 144
 145             gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 146               GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 147
 148             gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), x, y );
 149
 150             gtk_widget_set_usize( GTK_WIDGET(m_radio), max, 20 );
 151
 152             x += max;
 153        }
 154
 155        width = max*n + 10;
 156        height = 40;
 157     }
 158
 159     wxSize newSize = size;
 160     if (newSize.x == -1) newSize.x = width;
 161     if (newSize.y == -1) newSize.y = height;
 162     SetSize( newSize.x, newSize.y );
 163
 164     m_parent->AddChild( this );
 165
 166     (m_parent->m_insertCallback)( m_parent, this );
 167
 168     PostCreation();
 169
 170     SetLabel( title );
 171
 172     SetBackgroundColour( parent->GetBackgroundColour() );
 173     SetForegroundColour( parent->GetForegroundColour() );
 174
 175     Show( TRUE );
 176
 177     return TRUE;
 178 }
 179
 180 wxRadioBox::~wxRadioBox(void)
 181 {
 182     wxNode *node = m_boxes.First();
 183     while (node)
 184     {
 185         GtkWidget *button = GTK_WIDGET( node->Data() );
 186         gtk_widget_destroy( button );
 187         node = node->Next();
 188     }
 189 }
 190
 191 void wxRadioBox::OnSize( wxSizeEvent &event )
 192 {
 193   wxControl::OnSize( event );
 194
 195   int x = m_x+5;
 196   int y = m_y+15;
 197
 198   if (m_windowStyle & wxRA_HORIZONTAL)
 199   {
 200     wxNode *node = m_boxes.First();
 201     while (node)
 202     {
 203       GtkWidget *button = GTK_WIDGET( node->Data() );
 204
 205       gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 206       y += 20;
 207
 208       int w = m_width-10;
 209       if (w < 15) w = 15;
 210       gtk_widget_set_usize( button, w, 20 );
 211
 212       node = node->Next();
 213     }
 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 = 27+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_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 238       x += max;
 239       gtk_widget_set_usize( button, max, 20 );
 240
 241       node = node->Next();
 242     }
 243   }
 244 }
 245
 246 bool wxRadioBox::Show( bool show )
 247 {
 248     wxCHECK_MSG( m_widget != NULL, FALSE, "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, "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, "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, "invalid radiobox" );
 310
 311     wxNode *node = m_boxes.Nth( n );
 312
 313     wxCHECK_RET( node, "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, "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( "wxRadioBox none selected" );
 336
 337     return -1;
 338 }
 339
 340 wxString wxRadioBox::GetString( int n ) const
 341 {
 342     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 343
 344     wxNode *node = m_boxes.Nth( n );
 345
 346     wxCHECK_MSG( node, "", "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, "", "invalid radiobox" );
 357
 358     return GetString( item );
 359 }
 360
 361 void wxRadioBox::SetLabel( const wxString& label )
 362 {
 363     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 364
 365     wxControl::SetLabel( label );
 366
 367     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel() );
 368 }
 369
 370 void wxRadioBox::SetLabel( int item, const wxString& label )
 371 {
 372     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 373
 374     wxNode *node = m_boxes.Nth( item );
 375
 376     wxCHECK_RET( node, "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 );
 382 }
 383
 384 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 385 {
 386     wxFAIL_MSG("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, "invalid radiobox" );
 407
 408     wxNode *node = m_boxes.Nth( item );
 409
 410     wxCHECK_RET( node, "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, "invalid radiobox" );
 421
 422     wxNode *node = m_boxes.Nth( item );
 423
 424     wxCHECK_RET( node, "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, "", "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( "wxRadioBox none selected" );
 451     return "";
 452 }
 453
 454 bool wxRadioBox::SetStringSelection( const wxString &s )
 455 {
 456     wxCHECK_MSG( m_widget != NULL, FALSE, "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("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 }