src/gtk1/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     SetValidator( validator );
  91
  92     m_widget = gtk_frame_new( title.mbc_str() );
  93
  94     m_majorDim = majorDim;
  95
  96     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  97
  98     GSList *radio_button_group = (GSList *) NULL;
  99     for (int i = 0; i < n; i++)
 100     {
 101         if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 102
 103         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i].mbc_str() ) );
 104
 105         m_boxes.Append( (wxObject*) m_radio );
 106
 107         ConnectWidget( GTK_WIDGET(m_radio) );
 108
 109         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 110
 111         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 112            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 113
 114         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow),
 115                          GTK_WIDGET(m_radio),
 116                          m_x+10, m_y+10+(i*24), 10, 10 );
 117     }
 118
 119     wxSize ls = LayoutItems();
 120
 121     wxSize newSize = size;
 122     if (newSize.x == -1) newSize.x = ls.x;
 123     if (newSize.y == -1) newSize.y = ls.y;
 124     SetSize( newSize.x, newSize.y );
 125
 126     m_parent->DoAddChild( this );
 127
 128     PostCreation();
 129
 130     SetLabel( title );
 131
 132     SetBackgroundColour( parent->GetBackgroundColour() );
 133     SetForegroundColour( parent->GetForegroundColour() );
 134     SetFont( parent->GetFont() );
 135
 136     Show( TRUE );
 137
 138     return TRUE;
 139 }
 140
 141 wxRadioBox::~wxRadioBox()
 142 {
 143     wxNode *node = m_boxes.First();
 144     while (node)
 145     {
 146         GtkWidget *button = GTK_WIDGET( node->Data() );
 147         gtk_widget_destroy( button );
 148         node = node->Next();
 149     }
 150 }
 151
 152 void wxRadioBox::OnSize( wxSizeEvent &event )
 153 {
 154     LayoutItems();
 155
 156     event.Skip();
 157 }
 158
 159 wxSize wxRadioBox::LayoutItems()
 160 {
 161     int x = 7;
 162     int y = 15;
 163
 164     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 165
 166     wxSize res( 0, 0 );
 167
 168     if (m_windowStyle & wxRA_HORIZONTAL)
 169     {
 170
 171         for (int j = 0; j < m_majorDim; j++)
 172         {
 173             y = 15;
 174
 175             int max_len = 0;
 176             wxNode *node = m_boxes.Nth( j*num_per_major );
 177             for (int i1 = 0; i1< num_per_major; i1++)
 178             {
 179                 GtkWidget *button = GTK_WIDGET( node->Data() );
 180                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 181                 GdkFont *font = m_widget->style->font;
 182                 int len = 22+gdk_string_measure( font, label->label );
 183                 if (len > max_len) max_len = len;
 184
 185                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 186                 y += 22;
 187
 188                 node = node->Next();
 189                 if (!node) break;
 190             }
 191
 192             // we don't know the max_len before
 193
 194             node = m_boxes.Nth( j*num_per_major );
 195             for (int i2 = 0; i2< num_per_major; i2++)
 196             {
 197                 GtkWidget *button = GTK_WIDGET( node->Data() );
 198
 199                 gtk_myfixed_resize( GTK_MYFIXED(m_parent->m_wxwindow), button, max_len, 20 );
 200
 201                 node = node->Next();
 202                 if (!node) break;
 203             }
 204
 205             if (y > res.y) res.y = y;
 206
 207             x += max_len + 2;
 208         }
 209
 210         res.x = x+4;
 211         res.y += 9;
 212     }
 213     else
 214     {
 215         int max = 0;
 216
 217         wxNode *node = m_boxes.First();
 218         while (node)
 219         {
 220             GtkButton *button = GTK_BUTTON( node->Data() );
 221             GtkLabel *label = GTK_LABEL( button->child );
 222
 223             GdkFont *font = m_widget->style->font;
 224             int len = 22+gdk_string_measure( font, label->label );
 225             if (len > max) max = len;
 226
 227             node = node->Next();
 228         }
 229
 230         node = m_boxes.First();
 231         while (node)
 232         {
 233             GtkWidget *button = GTK_WIDGET( node->Data() );
 234
 235             gtk_myfixed_set_size( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 236             x += max;
 237
 238             node = node->Next();
 239         }
 240         res.x = x+4;
 241         res.y = 42;
 242     }
 243
 244     return res;
 245 }
 246
 247 bool wxRadioBox::Show( bool show )
 248 {
 249     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 250
 251     wxWindow::Show( show );
 252
 253     if ((m_windowStyle & wxNO_BORDER) != 0)
 254         gtk_widget_hide( m_widget );
 255
 256     wxNode *node = m_boxes.First();
 257     while (node)
 258     {
 259         GtkWidget *button = GTK_WIDGET( node->Data() );
 260
 261         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 262
 263         node = node->Next();
 264     }
 265
 266     return TRUE;
 267 }
 268
 269 int wxRadioBox::FindString( const wxString &s ) const
 270 {
 271     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 272
 273     int count = 0;
 274
 275     wxNode *node = m_boxes.First();
 276     while (node)
 277     {
 278         GtkButton *button = GTK_BUTTON( node->Data() );
 279
 280         GtkLabel *label = GTK_LABEL( button->child );
 281         if (s == label->label) return count;
 282         count++;
 283
 284         node = node->Next();
 285     }
 286
 287     return -1;
 288 }
 289
 290 void wxRadioBox::SetFocus()
 291 {
 292     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 293
 294     if (m_boxes.GetCount() == 0) return;
 295
 296     wxNode *node = m_boxes.First();
 297     while (node)
 298     {
 299         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 300         if (button->active)
 301         {
 302             gtk_widget_grab_focus( GTK_WIDGET(button) );
 303
 304             return;
 305         }
 306         node = node->Next();
 307     }
 308
 309 }
 310
 311 void wxRadioBox::SetSelection( int n )
 312 {
 313     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 314
 315     wxNode *node = m_boxes.Nth( n );
 316
 317     wxCHECK_RET( node, _T("radiobox wrong index") );
 318
 319     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 320
 321     gtk_toggle_button_set_state( button, 1 );
 322 }
 323
 324 int wxRadioBox::GetSelection(void) const
 325 {
 326     wxCHECK_MSG( m_widget != NULL, -1, _T("invalid radiobox") );
 327
 328     int count = 0;
 329
 330     wxNode *node = m_boxes.First();
 331     while (node)
 332     {
 333         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 334         if (button->active) return count;
 335         count++;
 336         node = node->Next();
 337     }
 338
 339     wxFAIL_MSG( _T("wxRadioBox none selected") );
 340
 341     return -1;
 342 }
 343
 344 wxString wxRadioBox::GetString( int n ) const
 345 {
 346     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 347
 348     wxNode *node = m_boxes.Nth( n );
 349
 350     wxCHECK_MSG( node, _T(""), _T("radiobox wrong index") );
 351
 352     GtkButton *button = GTK_BUTTON( node->Data() );
 353     GtkLabel *label = GTK_LABEL( button->child );
 354
 355     return wxString( label->label );
 356 }
 357
 358 wxString wxRadioBox::GetLabel( int item ) const
 359 {
 360     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 361
 362     return GetString( item );
 363 }
 364
 365 void wxRadioBox::SetLabel( const wxString& label )
 366 {
 367     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 368
 369     wxControl::SetLabel( label );
 370
 371     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 372 }
 373
 374 void wxRadioBox::SetLabel( int item, const wxString& label )
 375 {
 376     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 377
 378     wxNode *node = m_boxes.Nth( item );
 379
 380     wxCHECK_RET( node, _T("radiobox wrong index") );
 381
 382     GtkButton *button = GTK_BUTTON( node->Data() );
 383     GtkLabel *g_label = GTK_LABEL( button->child );
 384
 385     gtk_label_set( g_label, label.mbc_str() );
 386 }
 387
 388 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 389 {
 390     wxFAIL_MSG(_T("wxRadioBox::SetLabel not implemented."));
 391 }
 392
 393 bool wxRadioBox::Enable( bool enable )
 394 {
 395     if ( !wxControl::Enable( enable ) )
 396         return FALSE;
 397
 398     wxNode *node = m_boxes.First();
 399     while (node)
 400     {
 401         GtkButton *button = GTK_BUTTON( node->Data() );
 402         GtkWidget *label = button->child;
 403         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 404         gtk_widget_set_sensitive( label, enable );
 405         node = node->Next();
 406     }
 407
 408     return TRUE;
 409 }
 410
 411 void wxRadioBox::Enable( int item, bool enable )
 412 {
 413     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 414
 415     wxNode *node = m_boxes.Nth( item );
 416
 417     wxCHECK_RET( node, _T("radiobox wrong index") );
 418
 419     GtkButton *button = GTK_BUTTON( node->Data() );
 420     GtkWidget *label = button->child;
 421     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 422     gtk_widget_set_sensitive( label, enable );
 423 }
 424
 425 void wxRadioBox::Show( int item, bool show )
 426 {
 427     wxCHECK_RET( m_widget != NULL, _T("invalid radiobox") );
 428
 429     wxNode *node = m_boxes.Nth( item );
 430
 431     wxCHECK_RET( node, _T("radiobox wrong index") );
 432
 433     GtkWidget *button = GTK_WIDGET( node->Data() );
 434
 435     if (show)
 436         gtk_widget_show( button );
 437     else
 438         gtk_widget_hide( button );
 439 }
 440
 441 wxString wxRadioBox::GetStringSelection(void) const
 442 {
 443     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid radiobox") );
 444
 445     wxNode *node = m_boxes.First();
 446     while (node)
 447     {
 448         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 449         if (button->active)
 450         {
 451             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 452             return label->label;
 453         }
 454         node = node->Next();
 455     }
 456
 457     wxFAIL_MSG( _T("wxRadioBox none selected") );
 458     return _T("");
 459 }
 460
 461 bool wxRadioBox::SetStringSelection( const wxString &s )
 462 {
 463     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobox") );
 464
 465     int res = FindString( s );
 466     if (res == -1) return FALSE;
 467     SetSelection( res );
 468
 469     return TRUE;
 470 }
 471
 472 int wxRadioBox::Number(void) const
 473 {
 474     return m_boxes.Number();
 475 }
 476
 477 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 478 {
 479     return 1;
 480 }
 481
 482 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 483 {
 484     wxFAIL_MSG(_T("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 485 }
 486
 487 void wxRadioBox::ApplyWidgetStyle()
 488 {
 489     SetWidgetStyle();
 490
 491     gtk_widget_set_style( m_widget, m_widgetStyle );
 492
 493     wxNode *node = m_boxes.First();
 494     while (node)
 495     {
 496         GtkWidget *widget = GTK_WIDGET( node->Data() );
 497         gtk_widget_set_style( widget, m_widgetStyle );
 498
 499         GtkButton *button = GTK_BUTTON( node->Data() );
 500         gtk_widget_set_style( button->child, m_widgetStyle );
 501
 502         node = node->Next();
 503     }
 504 }
 505
 506 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 507 {
 508     if (window == m_widget->window) return TRUE;
 509
 510     wxNode *node = m_boxes.First();
 511     while (node)
 512     {
 513         GtkWidget *button = GTK_WIDGET( node->Data() );
 514
 515         if (window == button->window) return TRUE;
 516
 517         node = node->Next();
 518     }
 519
 520     return FALSE;
 521 }
 522
 523 #endif