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     wxString label;
 101     GSList *radio_button_group = (GSList *) NULL;
 102     for (int i = 0; i < n; i++)
 103     {
 104         if ( i != 0 )
 105             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 106
 107         label.Empty();
 108         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 109         {
 110             if ( *pc != _T('&') )
 111                 label += *pc;
 112         }
 113
 114         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 115
 116         m_boxes.Append( (wxObject*) m_radio );
 117
 118         ConnectWidget( GTK_WIDGET(m_radio) );
 119
 120         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 121
 122         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 123            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 124
 125         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow),
 126                          GTK_WIDGET(m_radio),
 127                          m_x+10, m_y+10+(i*24), 10, 10 );
 128     }
 129
 130     wxSize ls = LayoutItems();
 131
 132     wxSize newSize = size;
 133     if (newSize.x == -1) newSize.x = ls.x;
 134     if (newSize.y == -1) newSize.y = ls.y;
 135     SetSize( newSize.x, newSize.y );
 136
 137     m_parent->DoAddChild( this );
 138
 139     PostCreation();
 140
 141     SetLabel( title );
 142
 143     SetBackgroundColour( parent->GetBackgroundColour() );
 144     SetForegroundColour( parent->GetForegroundColour() );
 145     SetFont( parent->GetFont() );
 146
 147     Show( TRUE );
 148
 149     return TRUE;
 150 }
 151
 152 wxRadioBox::~wxRadioBox()
 153 {
 154     wxNode *node = m_boxes.First();
 155     while (node)
 156     {
 157         GtkWidget *button = GTK_WIDGET( node->Data() );
 158         gtk_widget_destroy( button );
 159         node = node->Next();
 160     }
 161 }
 162
 163 void wxRadioBox::OnSize( wxSizeEvent &event )
 164 {
 165     LayoutItems();
 166
 167     event.Skip();
 168 }
 169
 170 wxSize wxRadioBox::LayoutItems()
 171 {
 172     int x = 7;
 173     int y = 15;
 174
 175     if ( m_majorDim == 0 )
 176     {
 177         // avoid dividing by 0 below
 178         wxFAIL_MSG( _T("dimension of radiobox should not be 0!") );
 179
 180         m_majorDim = 1;
 181     }
 182
 183     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 184
 185     wxSize res( 0, 0 );
 186
 187     int num_of_cols = 0;
 188     int num_of_rows = 0;
 189     if (HasFlag(wxRA_SPECIFY_COLS))
 190     {
 191         num_of_cols = m_majorDim;
 192         num_of_rows = num_per_major;
 193     }
 194     else
 195     {
 196         num_of_cols = num_per_major;
 197         num_of_rows = m_majorDim;
 198     }
 199
 200     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 201          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 202     {
 203         for (int j = 0; j < num_of_cols; j++)
 204         {
 205             y = 15;
 206
 207             int max_len = 0;
 208             wxNode *node = m_boxes.Nth( j*num_of_rows );
 209             for (int i1 = 0; i1< num_of_rows; i1++)
 210             {
 211                 GtkWidget *button = GTK_WIDGET( node->Data() );
 212                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 213                 GdkFont *font = m_widget->style->font;
 214                 int len = 22+gdk_string_measure( font, label->label );
 215                 if (len > max_len) max_len = len;
 216
 217                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 218                 y += 22;
 219
 220                 node = node->Next();
 221                 if (!node) break;
 222             }
 223
 224             // we don't know the max_len before
 225
 226             node = m_boxes.Nth( j*num_of_rows );
 227             for (int i2 = 0; i2< num_of_rows; i2++)
 228             {
 229                 GtkWidget *button = GTK_WIDGET( node->Data() );
 230
 231                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 232
 233                 node = node->Next();
 234                 if (!node) break;
 235             }
 236
 237             if (y > res.y) res.y = y;
 238
 239             x += max_len + 2;
 240         }
 241
 242         res.x = x+4;
 243         res.y += 9;
 244     }
 245     else
 246     {
 247         int max = 0;
 248
 249         wxNode *node = m_boxes.First();
 250         while (node)
 251         {
 252             GtkButton *button = GTK_BUTTON( node->Data() );
 253             GtkLabel *label = GTK_LABEL( button->child );
 254
 255             GdkFont *font = m_widget->style->font;
 256             int len = 22+gdk_string_measure( font, label->label );
 257             if (len > max) max = len;
 258
 259             node = node->Next();
 260         }
 261
 262         node = m_boxes.First();
 263         while (node)
 264         {
 265             GtkWidget *button = GTK_WIDGET( node->Data() );
 266
 267             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 268             x += max;
 269
 270             node = node->Next();
 271         }
 272         res.x = x+4;
 273         res.y = 42;
 274     }
 275
 276     return res;
 277 }
 278
 279 bool wxRadioBox::Show( bool show )
 280 {
 281     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 282
 283     wxWindow::Show( show );
 284
 285     if ((m_windowStyle & wxNO_BORDER) != 0)
 286         gtk_widget_hide( m_widget );
 287
 288     wxNode *node = m_boxes.First();
 289     while (node)
 290     {
 291         GtkWidget *button = GTK_WIDGET( node->Data() );
 292
 293         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 294
 295         node = node->Next();
 296     }
 297
 298     return TRUE;
 299 }
 300
 301 int wxRadioBox::FindString( const wxString &s ) const
 302 {
 303     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 304
 305     int count = 0;
 306
 307     wxNode *node = m_boxes.First();
 308     while (node)
 309     {
 310         GtkButton *button = GTK_BUTTON( node->Data() );
 311
 312         GtkLabel *label = GTK_LABEL( button->child );
 313         if (s == label->label) return count;
 314         count++;
 315
 316         node = node->Next();
 317     }
 318
 319     return -1;
 320 }
 321
 322 void wxRadioBox::SetFocus()
 323 {
 324     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 325
 326     if (m_boxes.GetCount() == 0) return;
 327
 328     wxNode *node = m_boxes.First();
 329     while (node)
 330     {
 331         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 332         if (button->active)
 333         {
 334             gtk_widget_grab_focus( GTK_WIDGET(button) );
 335
 336             return;
 337         }
 338         node = node->Next();
 339     }
 340
 341 }
 342
 343 void wxRadioBox::SetSelection( int n )
 344 {
 345     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 346
 347     wxNode *node = m_boxes.Nth( n );
 348
 349     wxCHECK_RET( node, _T("radiobox wrong index") );
 350
 351     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 352
 353     DisableEvents();
 354
 355     gtk_toggle_button_set_state( button, 1 );
 356
 357     EnableEvents();
 358 }
 359
 360 int wxRadioBox::GetSelection(void) const
 361 {
 362     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 363
 364     int count = 0;
 365
 366     wxNode *node = m_boxes.First();
 367     while (node)
 368     {
 369         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 370         if (button->active) return count;
 371         count++;
 372         node = node->Next();
 373     }
 374
 375     wxFAIL_MSG( _T("wxRadioBox none selected") );
 376
 377     return -1;
 378 }
 379
 380 wxString wxRadioBox::GetString( int n ) const
 381 {
 382     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 383
 384     wxNode *node = m_boxes.Nth( n );
 385
 386     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 387
 388     GtkButton *button = GTK_BUTTON( node->Data() );
 389     GtkLabel *label = GTK_LABEL( button->child );
 390
 391     return wxString( label->label );
 392 }
 393
 394 wxString wxRadioBox::GetLabel( int item ) const
 395 {
 396     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 397
 398     return GetString( item );
 399 }
 400
 401 void wxRadioBox::SetLabel( const wxString& label )
 402 {
 403     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 404
 405     wxControl::SetLabel( label );
 406
 407     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 408 }
 409
 410 void wxRadioBox::SetLabel( int item, const wxString& label )
 411 {
 412     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 413
 414     wxNode *node = m_boxes.Nth( item );
 415
 416     wxCHECK_RET( node, _T("radiobox wrong index") );
 417
 418     GtkButton *button = GTK_BUTTON( node->Data() );
 419     GtkLabel *g_label = GTK_LABEL( button->child );
 420
 421     gtk_label_set( g_label, label.mbc_str() );
 422 }
 423
 424 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 425 {
 426     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 427 }
 428
 429 bool wxRadioBox::Enable( bool enable )
 430 {
 431     if ( !wxControl::Enable( enable ) )
 432         return FALSE;
 433
 434     wxNode *node = m_boxes.First();
 435     while (node)
 436     {
 437         GtkButton *button = GTK_BUTTON( node->Data() );
 438         GtkWidget *label = button->child;
 439         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 440         gtk_widget_set_sensitive( label, enable );
 441         node = node->Next();
 442     }
 443
 444     return TRUE;
 445 }
 446
 447 void wxRadioBox::Enable( int item, bool enable )
 448 {
 449     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 450
 451     wxNode *node = m_boxes.Nth( item );
 452
 453     wxCHECK_RET( node, _T("radiobox wrong index") );
 454
 455     GtkButton *button = GTK_BUTTON( node->Data() );
 456     GtkWidget *label = button->child;
 457     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 458     gtk_widget_set_sensitive( label, enable );
 459 }
 460
 461 void wxRadioBox::Show( int item, bool show )
 462 {
 463     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 464
 465     wxNode *node = m_boxes.Nth( item );
 466
 467     wxCHECK_RET( node, _T("radiobox wrong index") );
 468
 469     GtkWidget *button = GTK_WIDGET( node->Data() );
 470
 471     if (show)
 472         gtk_widget_show( button );
 473     else
 474         gtk_widget_hide( button );
 475 }
 476
 477 wxString wxRadioBox::GetStringSelection(void) const
 478 {
 479     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 480
 481     wxNode *node = m_boxes.First();
 482     while (node)
 483     {
 484         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 485         if (button->active)
 486         {
 487             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 488             return label->label;
 489         }
 490         node = node->Next();
 491     }
 492
 493     wxFAIL_MSG( _T("wxRadioBox none selected") );
 494     return _T("");
 495 }
 496
 497 bool wxRadioBox::SetStringSelection( const wxString &s )
 498 {
 499     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 500
 501     int res = FindString( s );
 502     if (res == -1) return FALSE;
 503     SetSelection( res );
 504
 505     return TRUE;
 506 }
 507
 508 int wxRadioBox::Number(void) const
 509 {
 510     return m_boxes.Number();
 511 }
 512
 513 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 514 {
 515     return 1;
 516 }
 517
 518 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 519 {
 520     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 521 }
 522
 523 void wxRadioBox::DisableEvents()
 524 {
 525     wxNode *node = m_boxes.First();
 526     while (node)
 527     {
 528         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 529            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 530
 531         node = node->Next();
 532     }
 533 }
 534
 535 void wxRadioBox::EnableEvents()
 536 {
 537     wxNode *node = m_boxes.First();
 538     while (node)
 539     {
 540         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 541            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 542
 543         node = node->Next();
 544     }
 545 }
 546
 547 void wxRadioBox::ApplyWidgetStyle()
 548 {
 549     SetWidgetStyle();
 550
 551     gtk_widget_set_style( m_widget, m_widgetStyle );
 552
 553     wxNode *node = m_boxes.First();
 554     while (node)
 555     {
 556         GtkWidget *widget = GTK_WIDGET( node->Data() );
 557         gtk_widget_set_style( widget, m_widgetStyle );
 558
 559         GtkButton *button = GTK_BUTTON( node->Data() );
 560         gtk_widget_set_style( button->child, m_widgetStyle );
 561
 562         node = node->Next();
 563     }
 564 }
 565
 566 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 567 {
 568     if (window == m_widget->window) return TRUE;
 569
 570     wxNode *node = m_boxes.First();
 571     while (node)
 572     {
 573         GtkWidget *button = GTK_WIDGET( node->Data() );
 574
 575         if (window == button->window) return TRUE;
 576
 577         node = node->Next();
 578     }
 579
 580     return FALSE;
 581 }
 582
 583 #endif