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[],
  68                          int WXUNUSED(majorDim),
  69                          long style, const wxValidator& validator,
  70                          const wxString &name )
  71 {
  72     m_alreadySent = FALSE;
  73     m_needParent = TRUE;
  74
  75     PreCreation( parent, id, pos, size, style, name );
  76
  77     SetValidator( validator );
  78
  79     m_widget = gtk_frame_new( title );
  80
  81     int x = m_x+5;
  82     int y = m_y+15;
  83     int maxLen = 0;
  84     int height = 20;
  85     int width = 0;
  86
  87     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  88
  89     if (m_windowStyle & wxRA_HORIZONTAL)
  90     {
  91         GSList *radio_button_group = (GSList *) NULL;
  92         for (int i = 0; i < n; i++)
  93         {
  94             if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  95
  96             m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
  97
  98             m_boxes.Append( (wxObject*) m_radio );
  99
 100             ConnectWidget( GTK_WIDGET(m_radio) );
 101
 102             if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 103
 104             gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 105               GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 106
 107             gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), x, y );
 108
 109             int tmp = 25+gdk_string_measure( GTK_WIDGET(m_radio)->style->font, choices[i] );
 110             if (tmp > maxLen) maxLen = tmp;
 111
 112             width = m_width-10;
 113             if (size.x == -1) width = tmp;
 114             gtk_widget_set_usize( GTK_WIDGET(m_radio), width, 20 );
 115
 116             y += 20;
 117             height += 20;
 118         }
 119         width = maxLen + 10;
 120     }
 121     else
 122     {
 123         int max = 0;
 124         for (int i = 0; i < n; i++)
 125         {
 126             GdkFont *font = m_widget->style->font;
 127             int len = 27+gdk_string_measure( font, choices[i] );
 128             if (len > max) max = len;
 129         }
 130
 131         GSList *radio_button_group = (GSList *) NULL;
 132         for (int i = 0; i < n; i++)
 133         {
 134             if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 135
 136             m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
 137
 138             m_boxes.Append( (wxObject*) m_radio );
 139
 140             ConnectWidget( GTK_WIDGET(m_radio) );
 141
 142             if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 143
 144             gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 145               GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 146
 147             gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), x, y );
 148
 149             gtk_widget_set_usize( GTK_WIDGET(m_radio), max, 20 );
 150
 151             x += max;
 152        }
 153
 154        width = max*n + 10;
 155        height = 40;
 156     }
 157
 158     wxSize newSize = size;
 159     if (newSize.x == -1) newSize.x = width;
 160     if (newSize.y == -1) newSize.y = height;
 161     SetSize( newSize.x, newSize.y );
 162
 163     m_parent->AddChild( this );
 164
 165     (m_parent->m_insertCallback)( m_parent, this );
 166
 167     PostCreation();
 168
 169     SetLabel( title );
 170
 171     SetBackgroundColour( parent->GetBackgroundColour() );
 172     SetForegroundColour( parent->GetForegroundColour() );
 173
 174     Show( TRUE );
 175
 176     return TRUE;
 177 }
 178
 179 wxRadioBox::~wxRadioBox(void)
 180 {
 181     wxNode *node = m_boxes.First();
 182     while (node)
 183     {
 184         GtkWidget *button = GTK_WIDGET( node->Data() );
 185         gtk_widget_destroy( button );
 186         node = node->Next();
 187     }
 188 }
 189
 190 void wxRadioBox::OnSize( wxSizeEvent &event )
 191 {
 192   wxControl::OnSize( event );
 193
 194   int x = m_x+5;
 195   int y = m_y+15;
 196
 197   if (m_windowStyle & wxRA_HORIZONTAL)
 198   {
 199     wxNode *node = m_boxes.First();
 200     while (node)
 201     {
 202       GtkWidget *button = GTK_WIDGET( node->Data() );
 203
 204       gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 205       y += 20;
 206
 207       int w = m_width-10;
 208       if (w < 15) w = 15;
 209       gtk_widget_set_usize( button, w, 20 );
 210
 211       node = node->Next();
 212     }
 213   }
 214   else
 215   {
 216     int max = 0;
 217
 218     wxNode *node = m_boxes.First();
 219     while (node)
 220     {
 221       GtkButton *button = GTK_BUTTON( node->Data() );
 222       GtkLabel *label = GTK_LABEL( button->child );
 223
 224       GdkFont *font = m_widget->style->font;
 225       int len = 27+gdk_string_measure( font, label->label );
 226       if (len > max) max = len;
 227
 228       node = node->Next();
 229     }
 230
 231     node = m_boxes.First();
 232     while (node)
 233     {
 234       GtkWidget *button = GTK_WIDGET( node->Data() );
 235
 236       gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, x, y );
 237       x += max;
 238       gtk_widget_set_usize( button, max, 20 );
 239
 240       node = node->Next();
 241     }
 242   }
 243 }
 244
 245 bool wxRadioBox::Show( bool show )
 246 {
 247     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 248
 249     wxWindow::Show( show );
 250
 251     wxNode *node = m_boxes.First();
 252     while (node)
 253     {
 254         GtkWidget *button = GTK_WIDGET( node->Data() );
 255
 256         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 257
 258         node = node->Next();
 259     }
 260
 261     return TRUE;
 262 }
 263
 264 int wxRadioBox::FindString( const wxString &s ) const
 265 {
 266     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 267
 268     int count = 0;
 269
 270     wxNode *node = m_boxes.First();
 271     while (node)
 272     {
 273         GtkButton *button = GTK_BUTTON( node->Data() );
 274
 275         GtkLabel *label = GTK_LABEL( button->child );
 276         if (s == label->label) return count;
 277         count++;
 278
 279         node = node->Next();
 280     }
 281
 282     return -1;
 283 }
 284
 285 void wxRadioBox::SetSelection( int n )
 286 {
 287     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 288
 289     wxNode *node = m_boxes.Nth( n );
 290
 291     wxCHECK_RET( node, "radiobox wrong index" );
 292
 293     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 294
 295     gtk_toggle_button_set_state( button, 1 );
 296 }
 297
 298 int wxRadioBox::GetSelection(void) const
 299 {
 300     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 301
 302     int count = 0;
 303
 304     wxNode *node = m_boxes.First();
 305     while (node)
 306     {
 307         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 308         if (button->active) return count;
 309         count++;
 310         node = node->Next();
 311     }
 312
 313     wxFAIL_MSG( "wxRadioBox none selected" );
 314
 315     return -1;
 316 }
 317
 318 wxString wxRadioBox::GetString( int n ) const
 319 {
 320     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 321
 322     wxNode *node = m_boxes.Nth( n );
 323
 324     wxCHECK_MSG( node, "", "radiobox wrong index" );
 325
 326     GtkButton *button = GTK_BUTTON( node->Data() );
 327     GtkLabel *label = GTK_LABEL( button->child );
 328
 329     return wxString( label->label );
 330 }
 331
 332 wxString wxRadioBox::GetLabel( int item ) const
 333 {
 334     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 335
 336     return GetString( item );
 337 }
 338
 339 void wxRadioBox::SetLabel( const wxString& label )
 340 {
 341     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 342
 343     wxControl::SetLabel( label );
 344
 345     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel() );
 346 }
 347
 348 void wxRadioBox::SetLabel( int item, const wxString& label )
 349 {
 350     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 351
 352     wxNode *node = m_boxes.Nth( item );
 353
 354     wxCHECK_RET( node, "radiobox wrong index" );
 355
 356     GtkButton *button = GTK_BUTTON( node->Data() );
 357     GtkLabel *g_label = GTK_LABEL( button->child );
 358
 359     gtk_label_set( g_label, label );
 360 }
 361
 362 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 363 {
 364     wxFAIL_MSG("wxRadioBox::SetLabel not implemented.");
 365 }
 366
 367 void wxRadioBox::Enable( bool enable )
 368 {
 369     wxControl::Enable( enable );
 370
 371     wxNode *node = m_boxes.First();
 372     while (node)
 373     {
 374         GtkButton *button = GTK_BUTTON( node->Data() );
 375         GtkWidget *label = button->child;
 376         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 377         gtk_widget_set_sensitive( label, enable );
 378         node = node->Next();
 379     }
 380 }
 381
 382 void wxRadioBox::Enable( int item, bool enable )
 383 {
 384     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 385
 386     wxNode *node = m_boxes.Nth( item );
 387
 388     wxCHECK_RET( node, "radiobox wrong index" );
 389
 390     GtkButton *button = GTK_BUTTON( node->Data() );
 391     GtkWidget *label = button->child;
 392     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 393     gtk_widget_set_sensitive( label, enable );
 394 }
 395
 396 void wxRadioBox::Show( int item, bool show )
 397 {
 398     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 399
 400     wxNode *node = m_boxes.Nth( item );
 401
 402     wxCHECK_RET( node, "radiobox wrong index" );
 403
 404     GtkWidget *button = GTK_WIDGET( node->Data() );
 405
 406     if (show)
 407         gtk_widget_show( button );
 408     else
 409         gtk_widget_hide( button );
 410 }
 411
 412 wxString wxRadioBox::GetStringSelection(void) const
 413 {
 414     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 415
 416     wxNode *node = m_boxes.First();
 417     while (node)
 418     {
 419         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 420         if (button->active)
 421         {
 422             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 423             return label->label;
 424         }
 425         node = node->Next();
 426     }
 427
 428     wxFAIL_MSG( "wxRadioBox none selected" );
 429     return "";
 430 }
 431
 432 bool wxRadioBox::SetStringSelection( const wxString &s )
 433 {
 434     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 435
 436     int res = FindString( s );
 437     if (res == -1) return FALSE;
 438     SetSelection( res );
 439
 440     return TRUE;
 441 }
 442
 443 int wxRadioBox::Number(void) const
 444 {
 445     return m_boxes.Number();
 446 }
 447
 448 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 449 {
 450     return 1;
 451 }
 452
 453 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 454 {
 455     wxFAIL_MSG("wxRadioBox::SetNumberOfRowsOrCols not implemented.");
 456 }
 457
 458 void wxRadioBox::ApplyWidgetStyle()
 459 {
 460     SetWidgetStyle();
 461
 462     gtk_widget_set_style( m_widget, m_widgetStyle );
 463
 464     wxNode *node = m_boxes.First();
 465     while (node)
 466     {
 467         GtkWidget *widget = GTK_WIDGET( node->Data() );
 468         gtk_widget_set_style( widget, m_widgetStyle );
 469
 470         GtkButton *button = GTK_BUTTON( node->Data() );
 471         gtk_widget_set_style( button->child, m_widgetStyle );
 472
 473         node = node->Next();
 474     }
 475 }
 476
 477 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 478 {
 479     if (window == m_widget->window) return TRUE;
 480
 481     wxNode *node = m_boxes.First();
 482     while (node)
 483     {
 484         GtkWidget *button = GTK_WIDGET( node->Data() );
 485
 486         if (window == button->window) return TRUE;
 487
 488         node = node->Next();
 489     }
 490
 491     return FALSE;
 492 }