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),
 112                          GTK_WIDGET(m_radio),
 113                          m_x+10, m_y+10+(i*24), 10, 10 );
 114     }
 115
 116     wxSize ls = LayoutItems();
 117
 118     wxSize newSize = size;
 119     if (newSize.x == -1) newSize.x = ls.x;
 120     if (newSize.y == -1) newSize.y = ls.y;
 121     SetSize( newSize.x, newSize.y );
 122
 123     m_parent->AddChild( this );
 124
 125     (m_parent->m_insertCallback)( m_parent, this );
 126
 127     PostCreation();
 128
 129     SetLabel( title );
 130
 131     SetBackgroundColour( parent->GetBackgroundColour() );
 132     SetForegroundColour( parent->GetForegroundColour() );
 133     SetFont( parent->GetFont() );
 134
 135     Show( TRUE );
 136
 137     return TRUE;
 138 }
 139
 140 wxRadioBox::~wxRadioBox(void)
 141 {
 142     wxNode *node = m_boxes.First();
 143     while (node)
 144     {
 145         GtkWidget *button = GTK_WIDGET( node->Data() );
 146         gtk_widget_destroy( button );
 147         node = node->Next();
 148     }
 149 }
 150
 151 void wxRadioBox::OnSize( wxSizeEvent &event )
 152 {
 153     wxControl::OnSize( event );
 154
 155     LayoutItems();
 156 }
 157
 158 wxSize wxRadioBox::LayoutItems()
 159 {
 160     int x = 7;
 161     int y = 15;
 162
 163     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 164
 165     wxSize res( 0, 0 );
 166
 167     if (m_windowStyle & wxRA_HORIZONTAL)
 168     {
 169
 170         for (int j = 0; j < m_majorDim; j++)
 171         {
 172             y = 15;
 173
 174             int max_len = 0;
 175             wxNode *node = m_boxes.Nth( j*num_per_major );
 176             for (int i1 = 0; i1< num_per_major; i1++)
 177             {
 178                 GtkWidget *button = GTK_WIDGET( node->Data() );
 179                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 180                 GdkFont *font = m_widget->style->font;
 181                 int len = 22+gdk_string_measure( font, label->label );
 182                 if (len > max_len) max_len = len;
 183
 184                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 185                 y += 20;
 186
 187                 node = node->Next();
 188                 if (!node) break;
 189             }
 190
 191             // we don't know the max_len before
 192
 193             node = m_boxes.Nth( j*num_per_major );
 194             for (int i2 = 0; i2< num_per_major; i2++)
 195             {
 196                 GtkWidget *button = GTK_WIDGET( node->Data() );
 197
 198                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 199
 200                 node = node->Next();
 201                 if (!node) break;
 202             }
 203
 204             if (y > res.y) res.y = y;
 205
 206             x += max_len + 2;
 207         }
 208
 209         res.x = x+4;
 210         res.y += 9;
 211     }
 212     else
 213     {
 214         int max = 0;
 215
 216         wxNode *node = m_boxes.First();
 217         while (node)
 218         {
 219             GtkButton *button = GTK_BUTTON( node->Data() );
 220             GtkLabel *label = GTK_LABEL( button->child );
 221
 222             GdkFont *font = m_widget->style->font;
 223             int len = 22+gdk_string_measure( font, label->label );
 224             if (len > max) max = len;
 225
 226             node = node->Next();
 227         }
 228
 229         node = m_boxes.First();
 230         while (node)
 231         {
 232             GtkWidget *button = GTK_WIDGET( node->Data() );
 233
 234             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 235             x += max;
 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     if ((m_windowStyle & wxNO_BORDER) == 0)
 253         gtk_widget_hide( m_widget );
 254
 255     wxNode *node = m_boxes.First();
 256     while (node)
 257     {
 258         GtkWidget *button = GTK_WIDGET( node->Data() );
 259
 260         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 261
 262         node = node->Next();
 263     }
 264
 265     return TRUE;
 266 }
 267
 268 int wxRadioBox::FindString( const wxString &s ) const
 269 {
 270     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 271
 272     int count = 0;
 273
 274     wxNode *node = m_boxes.First();
 275     while (node)
 276     {
 277         GtkButton *button = GTK_BUTTON( node->Data() );
 278
 279         GtkLabel *label = GTK_LABEL( button->child );
 280         if (s == label->label) return count;
 281         count++;
 282
 283         node = node->Next();
 284     }
 285
 286     return -1;
 287 }
 288
 289 void wxRadioBox::SetFocus()
 290 {
 291     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 292
 293     if (m_boxes.GetCount() == 0) return;
 294
 295     wxNode *node = m_boxes.First();
 296     while (node)
 297     {
 298         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 299         if (button->active)
 300         {
 301             gtk_widget_grab_focus( GTK_WIDGET(button) );
 302
 303             return;
 304         }
 305         node = node->Next();
 306     }
 307
 308 }
 309
 310 void wxRadioBox::SetSelection( int n )
 311 {
 312     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 313
 314     wxNode *node = m_boxes.Nth( n );
 315
 316     wxCHECK_RET( node, _T("radiobox wrong index") );
 317
 318     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 319
 320     gtk_toggle_button_set_state( button, 1 );
 321 }
 322
 323 int wxRadioBox::GetSelection(void) const
 324 {
 325     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 326
 327     int count = 0;
 328
 329     wxNode *node = m_boxes.First();
 330     while (node)
 331     {
 332         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 333         if (button->active) return count;
 334         count++;
 335         node = node->Next();
 336     }
 337
 338     wxFAIL_MSG( _T("wxRadioBox none selected") );
 339
 340     return -1;
 341 }
 342
 343 wxString wxRadioBox::GetString( int n ) const
 344 {
 345     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 346
 347     wxNode *node = m_boxes.Nth( n );
 348
 349     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 350
 351     GtkButton *button = GTK_BUTTON( node->Data() );
 352     GtkLabel *label = GTK_LABEL( button->child );
 353
 354     return wxString( label->label );
 355 }
 356
 357 wxString wxRadioBox::GetLabel( int item ) const
 358 {
 359     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 360
 361     return GetString( item );
 362 }
 363
 364 void wxRadioBox::SetLabel( const wxString& label )
 365 {
 366     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 367
 368     wxControl::SetLabel( label );
 369
 370     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 371 }
 372
 373 void wxRadioBox::SetLabel( int item, const wxString& label )
 374 {
 375     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 376
 377     wxNode *node = m_boxes.Nth( item );
 378
 379     wxCHECK_RET( node, _T("radiobox wrong index") );
 380
 381     GtkButton *button = GTK_BUTTON( node->Data() );
 382     GtkLabel *g_label = GTK_LABEL( button->child );
 383
 384     gtk_label_set( g_label, label.mbc_str() );
 385 }
 386
 387 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 388 {
 389     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 390 }
 391
 392 void wxRadioBox::Enable( bool enable )
 393 {
 394     wxControl::Enable( enable );
 395
 396     wxNode *node = m_boxes.First();
 397     while (node)
 398     {
 399         GtkButton *button = GTK_BUTTON( node->Data() );
 400         GtkWidget *label = button->child;
 401         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 402         gtk_widget_set_sensitive( label, enable );
 403         node = node->Next();
 404     }
 405 }
 406
 407 void wxRadioBox::Enable( int item, bool enable )
 408 {
 409     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 410
 411     wxNode *node = m_boxes.Nth( item );
 412
 413     wxCHECK_RET( node, _T("radiobox wrong index") );
 414
 415     GtkButton *button = GTK_BUTTON( node->Data() );
 416     GtkWidget *label = button->child;
 417     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 418     gtk_widget_set_sensitive( label, enable );
 419 }
 420
 421 void wxRadioBox::Show( int item, bool show )
 422 {
 423     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 424
 425     wxNode *node = m_boxes.Nth( item );
 426
 427     wxCHECK_RET( node, _T("radiobox wrong index") );
 428
 429     GtkWidget *button = GTK_WIDGET( node->Data() );
 430
 431     if (show)
 432         gtk_widget_show( button );
 433     else
 434         gtk_widget_hide( button );
 435 }
 436
 437 wxString wxRadioBox::GetStringSelection(void) const
 438 {
 439     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 440
 441     wxNode *node = m_boxes.First();
 442     while (node)
 443     {
 444         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 445         if (button->active)
 446         {
 447             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 448             return label->label;
 449         }
 450         node = node->Next();
 451     }
 452
 453     wxFAIL_MSG( _T("wxRadioBox none selected") );
 454     return _T("");
 455 }
 456
 457 bool wxRadioBox::SetStringSelection( const wxString &s )
 458 {
 459     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 460
 461     int res = FindString( s );
 462     if (res == -1) return FALSE;
 463     SetSelection( res );
 464
 465     return TRUE;
 466 }
 467
 468 int wxRadioBox::Number(void) const
 469 {
 470     return m_boxes.Number();
 471 }
 472
 473 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 474 {
 475     return 1;
 476 }
 477
 478 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 479 {
 480     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 481 }
 482
 483 void wxRadioBox::ApplyWidgetStyle()
 484 {
 485     SetWidgetStyle();
 486
 487     gtk_widget_set_style( m_widget, m_widgetStyle );
 488
 489     wxNode *node = m_boxes.First();
 490     while (node)
 491     {
 492         GtkWidget *widget = GTK_WIDGET( node->Data() );
 493         gtk_widget_set_style( widget, m_widgetStyle );
 494
 495         GtkButton *button = GTK_BUTTON( node->Data() );
 496         gtk_widget_set_style( button->child, m_widgetStyle );
 497
 498         node = node->Next();
 499     }
 500 }
 501
 502 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 503 {
 504     if (window == m_widget->window) return TRUE;
 505
 506     wxNode *node = m_boxes.First();
 507     while (node)
 508     {
 509         GtkWidget *button = GTK_WIDGET( node->Data() );
 510
 511         if (window == button->window) return TRUE;
 512
 513         node = node->Next();
 514     }
 515
 516     return FALSE;
 517 }