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->m_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()
  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->DoAddChild( this );
 124
 125     PostCreation();
 126
 127     SetLabel( title );
 128
 129     SetBackgroundColour( parent->GetBackgroundColour() );
 130     SetForegroundColour( parent->GetForegroundColour() );
 131     SetFont( parent->GetFont() );
 132
 133     Show( TRUE );
 134
 135     return TRUE;
 136 }
 137
 138 wxRadioBox::~wxRadioBox()
 139 {
 140     wxNode *node = m_boxes.First();
 141     while (node)
 142     {
 143         GtkWidget *button = GTK_WIDGET( node->Data() );
 144         gtk_widget_destroy( button );
 145         node = node->Next();
 146     }
 147 }
 148
 149 void wxRadioBox::OnSize( wxSizeEvent &event )
 150 {
 151     LayoutItems();
 152
 153     event.Skip();
 154 }
 155
 156 wxSize wxRadioBox::LayoutItems()
 157 {
 158     int x = 7;
 159     int y = 15;
 160
 161     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 162
 163     wxSize res( 0, 0 );
 164
 165     if (m_windowStyle & wxRA_HORIZONTAL)
 166     {
 167
 168         for (int j = 0; j < m_majorDim; j++)
 169         {
 170             y = 15;
 171
 172             int max_len = 0;
 173             wxNode *node = m_boxes.Nth( j*num_per_major );
 174             for (int i1 = 0; i1< num_per_major; i1++)
 175             {
 176                 GtkWidget *button = GTK_WIDGET( node->Data() );
 177                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 178                 GdkFont *font = m_widget->style->font;
 179                 int len = 22+gdk_string_measure( font, label->label );
 180                 if (len > max_len) max_len = len;
 181
 182                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 183                 y += 20;
 184
 185                 node = node->Next();
 186                 if (!node) break;
 187             }
 188
 189             // we don't know the max_len before
 190
 191             node = m_boxes.Nth( j*num_per_major );
 192             for (int i2 = 0; i2< num_per_major; i2++)
 193             {
 194                 GtkWidget *button = GTK_WIDGET( node->Data() );
 195
 196                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 197
 198                 node = node->Next();
 199                 if (!node) break;
 200             }
 201
 202             if (y > res.y) res.y = y;
 203
 204             x += max_len + 2;
 205         }
 206
 207         res.x = x+4;
 208         res.y += 9;
 209     }
 210     else
 211     {
 212         int max = 0;
 213
 214         wxNode *node = m_boxes.First();
 215         while (node)
 216         {
 217             GtkButton *button = GTK_BUTTON( node->Data() );
 218             GtkLabel *label = GTK_LABEL( button->child );
 219
 220             GdkFont *font = m_widget->style->font;
 221             int len = 22+gdk_string_measure( font, label->label );
 222             if (len > max) max = len;
 223
 224             node = node->Next();
 225         }
 226
 227         node = m_boxes.First();
 228         while (node)
 229         {
 230             GtkWidget *button = GTK_WIDGET( node->Data() );
 231
 232             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 233             x += max;
 234
 235             node = node->Next();
 236         }
 237         res.x = x+4;
 238         res.y = 42;
 239     }
 240
 241     return res;
 242 }
 243
 244 bool wxRadioBox::Show( bool show )
 245 {
 246     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 247
 248     wxWindow::Show( show );
 249
 250     if ((m_windowStyle & wxNO_BORDER) != 0)
 251         gtk_widget_hide( m_widget );
 252
 253     wxNode *node = m_boxes.First();
 254     while (node)
 255     {
 256         GtkWidget *button = GTK_WIDGET( node->Data() );
 257
 258         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 259
 260         node = node->Next();
 261     }
 262
 263     return TRUE;
 264 }
 265
 266 int wxRadioBox::FindString( const wxString &s ) const
 267 {
 268     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 269
 270     int count = 0;
 271
 272     wxNode *node = m_boxes.First();
 273     while (node)
 274     {
 275         GtkButton *button = GTK_BUTTON( node->Data() );
 276
 277         GtkLabel *label = GTK_LABEL( button->child );
 278         if (s == label->label) return count;
 279         count++;
 280
 281         node = node->Next();
 282     }
 283
 284     return -1;
 285 }
 286
 287 void wxRadioBox::SetFocus()
 288 {
 289     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 290
 291     if (m_boxes.GetCount() == 0) return;
 292
 293     wxNode *node = m_boxes.First();
 294     while (node)
 295     {
 296         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 297         if (button->active)
 298         {
 299             gtk_widget_grab_focus( GTK_WIDGET(button) );
 300
 301             return;
 302         }
 303         node = node->Next();
 304     }
 305
 306 }
 307
 308 void wxRadioBox::SetSelection( int n )
 309 {
 310     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 311
 312     wxNode *node = m_boxes.Nth( n );
 313
 314     wxCHECK_RET( node, _T("radiobox wrong index") );
 315
 316     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 317
 318     gtk_toggle_button_set_state( button, 1 );
 319 }
 320
 321 int wxRadioBox::GetSelection(void) const
 322 {
 323     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 324
 325     int count = 0;
 326
 327     wxNode *node = m_boxes.First();
 328     while (node)
 329     {
 330         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 331         if (button->active) return count;
 332         count++;
 333         node = node->Next();
 334     }
 335
 336     wxFAIL_MSG( _T("wxRadioBox none selected") );
 337
 338     return -1;
 339 }
 340
 341 wxString wxRadioBox::GetString( int n ) const
 342 {
 343     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 344
 345     wxNode *node = m_boxes.Nth( n );
 346
 347     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 348
 349     GtkButton *button = GTK_BUTTON( node->Data() );
 350     GtkLabel *label = GTK_LABEL( button->child );
 351
 352     return wxString( label->label );
 353 }
 354
 355 wxString wxRadioBox::GetLabel( int item ) const
 356 {
 357     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 358
 359     return GetString( item );
 360 }
 361
 362 void wxRadioBox::SetLabel( const wxString& label )
 363 {
 364     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 365
 366     wxControl::SetLabel( label );
 367
 368     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 369 }
 370
 371 void wxRadioBox::SetLabel( int item, const wxString& label )
 372 {
 373     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 374
 375     wxNode *node = m_boxes.Nth( item );
 376
 377     wxCHECK_RET( node, _T("radiobox wrong index") );
 378
 379     GtkButton *button = GTK_BUTTON( node->Data() );
 380     GtkLabel *g_label = GTK_LABEL( button->child );
 381
 382     gtk_label_set( g_label, label.mbc_str() );
 383 }
 384
 385 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 386 {
 387     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 388 }
 389
 390 bool wxRadioBox::Enable( bool enable )
 391 {
 392     if ( !wxControl::Enable( enable ) )
 393         return FALSE;
 394
 395     wxNode *node = m_boxes.First();
 396     while (node)
 397     {
 398         GtkButton *button = GTK_BUTTON( node->Data() );
 399         GtkWidget *label = button->child;
 400         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 401         gtk_widget_set_sensitive( label, enable );
 402         node = node->Next();
 403     }
 404
 405     return TRUE;
 406 }
 407
 408 void wxRadioBox::Enable( int item, bool enable )
 409 {
 410     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 411
 412     wxNode *node = m_boxes.Nth( item );
 413
 414     wxCHECK_RET( node, _T("radiobox wrong index") );
 415
 416     GtkButton *button = GTK_BUTTON( node->Data() );
 417     GtkWidget *label = button->child;
 418     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 419     gtk_widget_set_sensitive( label, enable );
 420 }
 421
 422 void wxRadioBox::Show( int item, bool show )
 423 {
 424     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 425
 426     wxNode *node = m_boxes.Nth( item );
 427
 428     wxCHECK_RET( node, _T("radiobox wrong index") );
 429
 430     GtkWidget *button = GTK_WIDGET( node->Data() );
 431
 432     if (show)
 433         gtk_widget_show( button );
 434     else
 435         gtk_widget_hide( button );
 436 }
 437
 438 wxString wxRadioBox::GetStringSelection(void) const
 439 {
 440     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 441
 442     wxNode *node = m_boxes.First();
 443     while (node)
 444     {
 445         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 446         if (button->active)
 447         {
 448             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 449             return label->label;
 450         }
 451         node = node->Next();
 452     }
 453
 454     wxFAIL_MSG( _T("wxRadioBox none selected") );
 455     return _T("");
 456 }
 457
 458 bool wxRadioBox::SetStringSelection( const wxString &s )
 459 {
 460     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 461
 462     int res = FindString( s );
 463     if (res == -1) return FALSE;
 464     SetSelection( res );
 465
 466     return TRUE;
 467 }
 468
 469 int wxRadioBox::Number(void) const
 470 {
 471     return m_boxes.Number();
 472 }
 473
 474 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 475 {
 476     return 1;
 477 }
 478
 479 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 480 {
 481     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 482 }
 483
 484 void wxRadioBox::ApplyWidgetStyle()
 485 {
 486     SetWidgetStyle();
 487
 488     gtk_widget_set_style( m_widget, m_widgetStyle );
 489
 490     wxNode *node = m_boxes.First();
 491     while (node)
 492     {
 493         GtkWidget *widget = GTK_WIDGET( node->Data() );
 494         gtk_widget_set_style( widget, m_widgetStyle );
 495
 496         GtkButton *button = GTK_BUTTON( node->Data() );
 497         gtk_widget_set_style( button->child, m_widgetStyle );
 498
 499         node = node->Next();
 500     }
 501 }
 502
 503 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 504 {
 505     if (window == m_widget->window) return TRUE;
 506
 507     wxNode *node = m_boxes.First();
 508     while (node)
 509     {
 510         GtkWidget *button = GTK_WIDGET( node->Data() );
 511
 512         if (window == button->window) return TRUE;
 513
 514         node = node->Next();
 515     }
 516
 517     return FALSE;
 518 }