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
  11 #ifdef __GNUG__
  12 #pragma implementation "radiobox.h"
  13 #endif
  14
  15 #include "wx/radiobox.h"
  16 #include "wx/dialog.h"
  17 #include "wx/frame.h"
  18 #include "wx/gtk/win_gtk.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // data
  22 //-----------------------------------------------------------------------------
  23
  24 extern bool   g_blockEventsOnDrag;
  25
  26 //-----------------------------------------------------------------------------
  27 // "clicked"
  28 //-----------------------------------------------------------------------------
  29
  30 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  31 {
  32     if (!rb->HasVMT()) return;
  33     if (g_blockEventsOnDrag) return;
  34
  35     if (rb->m_alreadySent)
  36     {
  37         rb->m_alreadySent = FALSE;
  38         return;
  39     }
  40
  41     rb->m_alreadySent = TRUE;
  42
  43     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  44     event.SetInt( rb->GetSelection() );
  45     wxString tmp( rb->GetStringSelection() );
  46     event.SetString( WXSTRINGCAST(tmp) );
  47     event.SetEventObject( rb );
  48     rb->GetEventHandler()->ProcessEvent(event);
  49 }
  50
  51 //-----------------------------------------------------------------------------
  52 // wxRadioBox
  53 //-----------------------------------------------------------------------------
  54
  55 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  56
  57 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  58     EVT_SIZE(wxRadioBox::OnSize)
  59 END_EVENT_TABLE()
  60
  61 wxRadioBox::wxRadioBox(void)
  62 {
  63 }
  64
  65 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  66                          const wxPoint &pos, const wxSize &size,
  67                          int n, const wxString choices[], int majorDim,
  68                          long style, const wxValidator& validator,
  69                          const wxString &name )
  70 {
  71     m_alreadySent = FALSE;
  72     m_needParent = TRUE;
  73     m_acceptsFocus = TRUE;
  74
  75     PreCreation( parent, id, pos, size, style, name );
  76
  77     SetValidator( validator );
  78
  79     m_widget = gtk_frame_new( title );
  80
  81     m_majorDim = majorDim;
  82
  83     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  84
  85     GSList *radio_button_group = (GSList *) NULL;
  86     for (int i = 0; i < n; i++)
  87     {
  88         if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  89
  90         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
  91
  92         m_boxes.Append( (wxObject*) m_radio );
  93
  94         ConnectWidget( GTK_WIDGET(m_radio) );
  95
  96         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
  97
  98         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
  99            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 100
 101         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), m_x+10, m_y+10+(i*24) );
 102
 103     }
 104
 105     wxSize ls = LayoutItems();
 106
 107     wxSize newSize = size;
 108     if (newSize.x == -1) newSize.x = ls.x;
 109     if (newSize.y == -1) newSize.y = ls.y;
 110     SetSize( newSize.x, newSize.y );
 111
 112     m_parent->AddChild( this );
 113
 114     (m_parent->m_insertCallback)( m_parent, this );
 115
 116     PostCreation();
 117
 118     SetLabel( title );
 119
 120     SetBackgroundColour( parent->GetBackgroundColour() );
 121     SetForegroundColour( parent->GetForegroundColour() );
 122
 123     Show( TRUE );
 124
 125     return TRUE;
 126 }
 127
 128 wxRadioBox::~wxRadioBox(void)
 129 {
 130     wxNode *node = m_boxes.First();
 131     while (node)
 132     {
 133         GtkWidget *button = GTK_WIDGET( node->Data() );
 134         gtk_widget_destroy( button );
 135         node = node->Next();
 136     }
 137 }
 138
 139 void wxRadioBox::OnSize( wxSizeEvent &event )
 140 {
 141     wxControl::OnSize( event );
 142
 143     LayoutItems();
 144 }
 145
 146 wxSize wxRadioBox::LayoutItems()
 147 {
 148     int x = m_x+7;
 149     int y = m_y+15;
 150
 151     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 152
 153     wxSize res( 0, 0 );
 154
 155     if (m_windowStyle & wxRA_HORIZONTAL)
 156     {
 157
 158         for (int j = 0; j < m_majorDim; j++)
 159         {
 160             y = m_y+15;
 161
 162             int max_len = 0;
 163             wxNode *node = m_boxes.Nth( j*num_per_major );
 164             for (int i = 0; i< num_per_major; i++)
 165             {
 166                 GtkWidget *button = GTK_WIDGET( node->Data() );
 167                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 168                 GdkFont *font = m_widget->style->font;
 169                 int len = 27+gdk_string_measure( font, label->label );
 170                 if (len > max_len) max_len = len;
 171
 172                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 173                 y += 22;
 174
 175                 node = node->Next();
 176                 if (!node) break;
 177             }
 178
 179             // we don't know the max_len before
 180
 181             node = m_boxes.Nth( j*num_per_major );
 182             for (int i = 0; i< num_per_major; i++)
 183             {
 184                 GtkWidget *button = GTK_WIDGET( node->Data() );
 185
 186                 gtk_widget_set_usize( button, max_len, 22 );
 187
 188                 node = node->Next();
 189                 if (!node) break;
 190             }
 191
 192             if (y > res.y) res.y = y;
 193
 194             x += max_len + 2;
 195         }
 196
 197         res.y -= 3;
 198         res.x = x-2;
 199     }
 200     else
 201     {
 202         int max = 0;
 203
 204         wxNode *node = m_boxes.First();
 205         while (node)
 206         {
 207             GtkButton *button = GTK_BUTTON( node->Data() );
 208             GtkLabel *label = GTK_LABEL( button->child );
 209
 210             GdkFont *font = m_widget->style->font;
 211             int len = 27+gdk_string_measure( font, label->label );
 212             if (len > max) max = len;
 213
 214             node = node->Next();
 215         }
 216
 217         node = m_boxes.First();
 218         while (node)
 219         {
 220             GtkWidget *button = GTK_WIDGET( node->Data() );
 221
 222             gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 223             x += max;
 224             gtk_widget_set_usize( button, max, 20 );
 225
 226             node = node->Next();
 227         }
 228         res.x = x-2;
 229         res.y = 42;
 230     }
 231
 232     return res;
 233 }
 234
 235 bool wxRadioBox::Show( bool show )
 236 {
 237     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 238
 239     wxWindow::Show( show );
 240
 241     wxNode *node = m_boxes.First();
 242     while (node)
 243     {
 244         GtkWidget *button = GTK_WIDGET( node->Data() );
 245
 246         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 247
 248         node = node->Next();
 249     }
 250
 251     return TRUE;
 252 }
 253
 254 int wxRadioBox::FindString( const wxString &s ) const
 255 {
 256     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 257
 258     int count = 0;
 259
 260     wxNode *node = m_boxes.First();
 261     while (node)
 262     {
 263         GtkButton *button = GTK_BUTTON( node->Data() );
 264
 265         GtkLabel *label = GTK_LABEL( button->child );
 266         if (s == label->label) return count;
 267         count++;
 268
 269         node = node->Next();
 270     }
 271
 272     return -1;
 273 }
 274
 275 void wxRadioBox::SetFocus()
 276 {
 277     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 278
 279     if (m_boxes.GetCount() == 0) return;
 280
 281     wxNode *node = m_boxes.First();
 282     while (node)
 283     {
 284         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 285         if (button->active)
 286         {
 287             gtk_widget_grab_focus( GTK_WIDGET(button) );
 288
 289             return;
 290         }
 291         node = node->Next();
 292     }
 293
 294 }
 295
 296 void wxRadioBox::SetSelection( int n )
 297 {
 298     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 299
 300     wxNode *node = m_boxes.Nth( n );
 301
 302     wxCHECK_RET( node, "radiobox wrong index" );
 303
 304     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 305
 306     gtk_toggle_button_set_state( button, 1 );
 307 }
 308
 309 int wxRadioBox::GetSelection(void) const
 310 {
 311     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 312
 313     int count = 0;
 314
 315     wxNode *node = m_boxes.First();
 316     while (node)
 317     {
 318         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 319         if (button->active) return count;
 320         count++;
 321         node = node->Next();
 322     }
 323
 324     wxFAIL_MSG( "wxRadioBox none selected" );
 325
 326     return -1;
 327 }
 328
 329 wxString wxRadioBox::GetString( int n ) const
 330 {
 331     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 332
 333     wxNode *node = m_boxes.Nth( n );
 334
 335     wxCHECK_MSG( node, "", "radiobox wrong index" );
 336
 337     GtkButton *button = GTK_BUTTON( node->Data() );
 338     GtkLabel *label = GTK_LABEL( button->child );
 339
 340     return wxString( label->label );
 341 }
 342
 343 wxString wxRadioBox::GetLabel( int item ) const
 344 {
 345     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 346
 347     return GetString( item );
 348 }
 349
 350 void wxRadioBox::SetLabel( const wxString& label )
 351 {
 352     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 353
 354     wxControl::SetLabel( label );
 355
 356     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel() );
 357 }
 358
 359 void wxRadioBox::SetLabel( int item, const wxString& label )
 360 {
 361     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 362
 363     wxNode *node = m_boxes.Nth( item );
 364
 365     wxCHECK_RET( node, "radiobox wrong index" );
 366
 367     GtkButton *button = GTK_BUTTON( node->Data() );
 368     GtkLabel *g_label = GTK_LABEL( button->child );
 369
 370     gtk_label_set( g_label, label );
 371 }
 372
 373 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 374 {
 375     wxFAIL_MSG("wxRadioBox::SetLabel not implemented.");
 376 }
 377
 378 void wxRadioBox::Enable( bool enable )
 379 {
 380     wxControl::Enable( enable );
 381
 382     wxNode *node = m_boxes.First();
 383     while (node)
 384     {
 385         GtkButton *button = GTK_BUTTON( node->Data() );
 386         GtkWidget *label = button->child;
 387         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 388         gtk_widget_set_sensitive( label, enable );
 389         node = node->Next();
 390     }
 391 }
 392
 393 void wxRadioBox::Enable( int item, bool enable )
 394 {
 395     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 396
 397     wxNode *node = m_boxes.Nth( item );
 398
 399     wxCHECK_RET( node, "radiobox wrong index" );
 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 }
 406
 407 void wxRadioBox::Show( int item, bool show )
 408 {
 409     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 410
 411     wxNode *node = m_boxes.Nth( item );
 412
 413     wxCHECK_RET( node, "radiobox wrong index" );
 414
 415     GtkWidget *button = GTK_WIDGET( node->Data() );
 416
 417     if (show)
 418         gtk_widget_show( button );
 419     else
 420         gtk_widget_hide( button );
 421 }
 422
 423 wxString wxRadioBox::GetStringSelection(void) const
 424 {
 425     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 426
 427     wxNode *node = m_boxes.First();
 428     while (node)
 429     {
 430         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 431         if (button->active)
 432         {
 433             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 434             return label->label;
 435         }
 436         node = node->Next();
 437     }
 438
 439     wxFAIL_MSG( "wxRadioBox none selected" );
 440     return "";
 441 }
 442
 443 bool wxRadioBox::SetStringSelection( const wxString &s )
 444 {
 445     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 446
 447     int res = FindString( s );
 448     if (res == -1) return FALSE;
 449     SetSelection( res );
 450
 451     return TRUE;
 452 }
 453
 454 int wxRadioBox::Number(void) const
 455 {
 456     return m_boxes.Number();
 457 }
 458
 459 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 460 {
 461     return 1;
 462 }
 463
 464 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 465 {
 466     wxFAIL_MSG("wxRadioBox::SetNumberOfRowsOrCols not implemented.");
 467 }
 468
 469 void wxRadioBox::ApplyWidgetStyle()
 470 {
 471     SetWidgetStyle();
 472
 473     gtk_widget_set_style( m_widget, m_widgetStyle );
 474
 475     wxNode *node = m_boxes.First();
 476     while (node)
 477     {
 478         GtkWidget *widget = GTK_WIDGET( node->Data() );
 479         gtk_widget_set_style( widget, m_widgetStyle );
 480
 481         GtkButton *button = GTK_BUTTON( node->Data() );
 482         gtk_widget_set_style( button->child, m_widgetStyle );
 483
 484         node = node->Next();
 485     }
 486 }
 487
 488 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 489 {
 490     if (window == m_widget->window) return TRUE;
 491
 492     wxNode *node = m_boxes.First();
 493     while (node)
 494     {
 495         GtkWidget *button = GTK_WIDGET( node->Data() );
 496
 497         if (window == button->window) return TRUE;
 498
 499         node = node->Next();
 500     }
 501
 502     return FALSE;
 503 }