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 wxRadioBox::wxRadioBox()
  71 {
  72 }
  73
  74 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  75                          const wxPoint &pos, const wxSize &size,
  76                          int n, const wxString choices[], int majorDim,
  77                          long style, const wxValidator& validator,
  78                          const wxString &name )
  79 {
  80     m_alreadySent = FALSE;
  81     m_needParent = TRUE;
  82     m_acceptsFocus = TRUE;
  83
  84     if (!PreCreation( parent, pos, size ) ||
  85         !CreateBase( parent, id, pos, size, style, validator, name ))
  86     {
  87         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
  88         return FALSE;
  89     }
  90
  91     m_widget = gtk_frame_new( title.mbc_str() );
  92
  93     m_majorDim = majorDim;
  94
  95     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  96
  97     wxString label;
  98     GSList *radio_button_group = (GSList *) NULL;
  99     for (int i = 0; i < n; i++)
 100     {
 101         if ( i != 0 )
 102             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 103
 104         label.Empty();
 105         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 106         {
 107             if ( *pc != wxT('&') )
 108                 label += *pc;
 109         }
 110
 111         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 112
 113         m_boxes.Append( (wxObject*) m_radio );
 114
 115         ConnectWidget( GTK_WIDGET(m_radio) );
 116
 117         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 118
 119         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 120            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 121
 122         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow),
 123                          GTK_WIDGET(m_radio),
 124                          m_x+10, m_y+10+(i*24), 10, 10 );
 125     }
 126
 127     wxSize ls = LayoutItems();
 128
 129     wxSize newSize = size;
 130     if (newSize.x == -1) newSize.x = ls.x;
 131     if (newSize.y == -1) newSize.y = ls.y;
 132     SetSize( newSize.x, newSize.y );
 133
 134     m_parent->DoAddChild( this );
 135
 136     PostCreation();
 137
 138     SetLabel( title );
 139
 140     SetBackgroundColour( parent->GetBackgroundColour() );
 141     SetForegroundColour( parent->GetForegroundColour() );
 142     SetFont( parent->GetFont() );
 143
 144     Show( TRUE );
 145
 146     return TRUE;
 147 }
 148
 149 wxRadioBox::~wxRadioBox()
 150 {
 151     wxNode *node = m_boxes.First();
 152     while (node)
 153     {
 154         GtkWidget *button = GTK_WIDGET( node->Data() );
 155         gtk_widget_destroy( button );
 156         node = node->Next();
 157     }
 158 }
 159
 160 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 161 {
 162     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 163
 164     LayoutItems();
 165 }
 166
 167 wxSize wxRadioBox::LayoutItems()
 168 {
 169     int x = 7;
 170     int y = 15;
 171
 172     if ( m_majorDim == 0 )
 173     {
 174         // avoid dividing by 0 below
 175         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 176
 177         m_majorDim = 1;
 178     }
 179
 180     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 181
 182     wxSize res( 0, 0 );
 183
 184     int num_of_cols = 0;
 185     int num_of_rows = 0;
 186     if (HasFlag(wxRA_SPECIFY_COLS))
 187     {
 188         num_of_cols = m_majorDim;
 189         num_of_rows = num_per_major;
 190     }
 191     else
 192     {
 193         num_of_cols = num_per_major;
 194         num_of_rows = m_majorDim;
 195     }
 196
 197     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 198          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 199     {
 200         for (int j = 0; j < num_of_cols; j++)
 201         {
 202             y = 15;
 203
 204             int max_len = 0;
 205             wxNode *node = m_boxes.Nth( j*num_of_rows );
 206             for (int i1 = 0; i1< num_of_rows; i1++)
 207             {
 208                 GtkWidget *button = GTK_WIDGET( node->Data() );
 209                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 210                 GdkFont *font = m_widget->style->font;
 211                 int len = 22+gdk_string_measure( font, label->label );
 212                 if (len > max_len) max_len = len;
 213
 214                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 215                 y += 22;
 216
 217                 node = node->Next();
 218                 if (!node) break;
 219             }
 220
 221             // we don't know the max_len before
 222
 223             node = m_boxes.Nth( j*num_of_rows );
 224             for (int i2 = 0; i2< num_of_rows; i2++)
 225             {
 226                 GtkWidget *button = GTK_WIDGET( node->Data() );
 227
 228                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 229
 230                 node = node->Next();
 231                 if (!node) break;
 232             }
 233
 234             if (y > res.y) res.y = y;
 235
 236             x += max_len + 2;
 237         }
 238
 239         res.x = x+4;
 240         res.y += 9;
 241     }
 242     else
 243     {
 244         int max = 0;
 245
 246         wxNode *node = m_boxes.First();
 247         while (node)
 248         {
 249             GtkButton *button = GTK_BUTTON( node->Data() );
 250             GtkLabel *label = GTK_LABEL( button->child );
 251
 252             GdkFont *font = m_widget->style->font;
 253             int len = 22+gdk_string_measure( font, label->label );
 254             if (len > max) max = len;
 255
 256             node = node->Next();
 257         }
 258
 259         node = m_boxes.First();
 260         while (node)
 261         {
 262             GtkWidget *button = GTK_WIDGET( node->Data() );
 263
 264             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 265             x += max;
 266
 267             node = node->Next();
 268         }
 269         res.x = x+4;
 270         res.y = 40;
 271     }
 272
 273     return res;
 274 }
 275
 276 bool wxRadioBox::Show( bool show )
 277 {
 278     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 279
 280     wxWindow::Show( show );
 281
 282     if ((m_windowStyle & wxNO_BORDER) != 0)
 283         gtk_widget_hide( m_widget );
 284
 285     wxNode *node = m_boxes.First();
 286     while (node)
 287     {
 288         GtkWidget *button = GTK_WIDGET( node->Data() );
 289
 290         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 291
 292         node = node->Next();
 293     }
 294
 295     return TRUE;
 296 }
 297
 298 int wxRadioBox::FindString( const wxString &s ) const
 299 {
 300     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 301
 302     int count = 0;
 303
 304     wxNode *node = m_boxes.First();
 305     while (node)
 306     {
 307         GtkButton *button = GTK_BUTTON( node->Data() );
 308
 309         GtkLabel *label = GTK_LABEL( button->child );
 310         if (s == label->label) return count;
 311         count++;
 312
 313         node = node->Next();
 314     }
 315
 316     return -1;
 317 }
 318
 319 void wxRadioBox::SetFocus()
 320 {
 321     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 322
 323     if (m_boxes.GetCount() == 0) return;
 324
 325     wxNode *node = m_boxes.First();
 326     while (node)
 327     {
 328         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 329         if (button->active)
 330         {
 331             gtk_widget_grab_focus( GTK_WIDGET(button) );
 332
 333             return;
 334         }
 335         node = node->Next();
 336     }
 337
 338 }
 339
 340 void wxRadioBox::SetSelection( int n )
 341 {
 342     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 343
 344     wxNode *node = m_boxes.Nth( n );
 345
 346     wxCHECK_RET( node, wxT("radiobox wrong index") );
 347
 348     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 349
 350     DisableEvents();
 351
 352     gtk_toggle_button_set_state( button, 1 );
 353
 354     EnableEvents();
 355 }
 356
 357 int wxRadioBox::GetSelection(void) const
 358 {
 359     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 360
 361     int count = 0;
 362
 363     wxNode *node = m_boxes.First();
 364     while (node)
 365     {
 366         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 367         if (button->active) return count;
 368         count++;
 369         node = node->Next();
 370     }
 371
 372     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 373
 374     return -1;
 375 }
 376
 377 wxString wxRadioBox::GetString( int n ) const
 378 {
 379     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 380
 381     wxNode *node = m_boxes.Nth( n );
 382
 383     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 384
 385     GtkButton *button = GTK_BUTTON( node->Data() );
 386     GtkLabel *label = GTK_LABEL( button->child );
 387
 388     return wxString( label->label );
 389 }
 390
 391 wxString wxRadioBox::GetLabel( int item ) const
 392 {
 393     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 394
 395     return GetString( item );
 396 }
 397
 398 void wxRadioBox::SetLabel( const wxString& label )
 399 {
 400     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 401
 402     wxControl::SetLabel( label );
 403
 404     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 405 }
 406
 407 void wxRadioBox::SetLabel( int item, const wxString& label )
 408 {
 409     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 410
 411     wxNode *node = m_boxes.Nth( item );
 412
 413     wxCHECK_RET( node, wxT("radiobox wrong index") );
 414
 415     GtkButton *button = GTK_BUTTON( node->Data() );
 416     GtkLabel *g_label = GTK_LABEL( button->child );
 417
 418     gtk_label_set( g_label, label.mbc_str() );
 419 }
 420
 421 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 422 {
 423     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 424 }
 425
 426 bool wxRadioBox::Enable( bool enable )
 427 {
 428     if ( !wxControl::Enable( enable ) )
 429         return FALSE;
 430
 431     wxNode *node = m_boxes.First();
 432     while (node)
 433     {
 434         GtkButton *button = GTK_BUTTON( node->Data() );
 435         GtkWidget *label = button->child;
 436         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 437         gtk_widget_set_sensitive( label, enable );
 438         node = node->Next();
 439     }
 440
 441     return TRUE;
 442 }
 443
 444 void wxRadioBox::Enable( int item, bool enable )
 445 {
 446     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 447
 448     wxNode *node = m_boxes.Nth( item );
 449
 450     wxCHECK_RET( node, wxT("radiobox wrong index") );
 451
 452     GtkButton *button = GTK_BUTTON( node->Data() );
 453     GtkWidget *label = button->child;
 454     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 455     gtk_widget_set_sensitive( label, enable );
 456 }
 457
 458 void wxRadioBox::Show( int item, bool show )
 459 {
 460     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 461
 462     wxNode *node = m_boxes.Nth( item );
 463
 464     wxCHECK_RET( node, wxT("radiobox wrong index") );
 465
 466     GtkWidget *button = GTK_WIDGET( node->Data() );
 467
 468     if (show)
 469         gtk_widget_show( button );
 470     else
 471         gtk_widget_hide( button );
 472 }
 473
 474 wxString wxRadioBox::GetStringSelection() const
 475 {
 476     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 477
 478     wxNode *node = m_boxes.First();
 479     while (node)
 480     {
 481         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 482         if (button->active)
 483         {
 484             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 485             return label->label;
 486         }
 487         node = node->Next();
 488     }
 489
 490     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 491     return wxT("");
 492 }
 493
 494 bool wxRadioBox::SetStringSelection( const wxString &s )
 495 {
 496     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 497
 498     int res = FindString( s );
 499     if (res == -1) return FALSE;
 500     SetSelection( res );
 501
 502     return TRUE;
 503 }
 504
 505 int wxRadioBox::Number() const
 506 {
 507     return m_boxes.Number();
 508 }
 509
 510 int wxRadioBox::GetNumberOfRowsOrCols() const
 511 {
 512     return 1;
 513 }
 514
 515 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 516 {
 517     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 518 }
 519
 520 void wxRadioBox::DisableEvents()
 521 {
 522     wxNode *node = m_boxes.First();
 523     while (node)
 524     {
 525         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 526            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 527
 528         node = node->Next();
 529     }
 530 }
 531
 532 void wxRadioBox::EnableEvents()
 533 {
 534     wxNode *node = m_boxes.First();
 535     while (node)
 536     {
 537         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 538            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 539
 540         node = node->Next();
 541     }
 542 }
 543
 544 void wxRadioBox::ApplyWidgetStyle()
 545 {
 546     SetWidgetStyle();
 547
 548     gtk_widget_set_style( m_widget, m_widgetStyle );
 549
 550     wxNode *node = m_boxes.First();
 551     while (node)
 552     {
 553         GtkWidget *widget = GTK_WIDGET( node->Data() );
 554         gtk_widget_set_style( widget, m_widgetStyle );
 555
 556         GtkButton *button = GTK_BUTTON( node->Data() );
 557         gtk_widget_set_style( button->child, m_widgetStyle );
 558
 559         node = node->Next();
 560     }
 561 }
 562
 563 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 564 {
 565     if (window == m_widget->window) return TRUE;
 566
 567     wxNode *node = m_boxes.First();
 568     while (node)
 569     {
 570         GtkWidget *button = GTK_WIDGET( node->Data() );
 571
 572         if (window == button->window) return TRUE;
 573
 574         node = node->Next();
 575     }
 576
 577     return FALSE;
 578 }
 579
 580 #endif