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 #include "wx/dialog.h"
  16 #include "wx/frame.h"
  17
  18 #include "gdk/gdk.h"
  19 #include "gtk/gtk.h"
  20 #include "wx/gtk/win_gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // data
  24 //-----------------------------------------------------------------------------
  25
  26 extern bool   g_blockEventsOnDrag;
  27
  28 //-----------------------------------------------------------------------------
  29 // "clicked"
  30 //-----------------------------------------------------------------------------
  31
  32 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  33 {
  34     if (!rb->HasVMT()) return;
  35     if (g_blockEventsOnDrag) return;
  36
  37     if (rb->m_alreadySent)
  38     {
  39         rb->m_alreadySent = FALSE;
  40         return;
  41     }
  42
  43     rb->m_alreadySent = TRUE;
  44
  45     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  46     event.SetInt( rb->GetSelection() );
  47     wxString tmp( rb->GetStringSelection() );
  48     event.SetString( WXSTRINGCAST(tmp) );
  49     event.SetEventObject( rb );
  50     rb->GetEventHandler()->ProcessEvent(event);
  51 }
  52
  53 //-----------------------------------------------------------------------------
  54 // wxRadioBox
  55 //-----------------------------------------------------------------------------
  56
  57 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  58
  59 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  60     EVT_SIZE(wxRadioBox::OnSize)
  61 END_EVENT_TABLE()
  62
  63 wxRadioBox::wxRadioBox(void)
  64 {
  65 }
  66
  67 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  68                          const wxPoint &pos, const wxSize &size,
  69                          int n, const wxString choices[], int majorDim,
  70                          long style, const wxValidator& validator,
  71                          const wxString &name )
  72 {
  73     m_alreadySent = FALSE;
  74     m_needParent = TRUE;
  75     m_acceptsFocus = TRUE;
  76
  77     PreCreation( parent, id, pos, size, style, name );
  78
  79     SetValidator( validator );
  80
  81     m_widget = gtk_frame_new( title );
  82
  83     m_majorDim = majorDim;
  84
  85     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  86
  87     GSList *radio_button_group = (GSList *) NULL;
  88     for (int i = 0; i < n; i++)
  89     {
  90         if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  91
  92         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
  93
  94         m_boxes.Append( (wxObject*) m_radio );
  95
  96         ConnectWidget( GTK_WIDGET(m_radio) );
  97
  98         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
  99
 100         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 101            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 102
 103         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), m_x+10, m_y+10+(i*24) );
 104
 105     }
 106
 107     wxSize ls = LayoutItems();
 108
 109     wxSize newSize = size;
 110     if (newSize.x == -1) newSize.x = ls.x;
 111     if (newSize.y == -1) newSize.y = ls.y;
 112     SetSize( newSize.x, newSize.y );
 113
 114     m_parent->AddChild( this );
 115
 116     (m_parent->m_insertCallback)( m_parent, this );
 117
 118     PostCreation();
 119
 120     SetLabel( title );
 121
 122     SetBackgroundColour( parent->GetBackgroundColour() );
 123     SetForegroundColour( parent->GetForegroundColour() );
 124     SetFont( parent->GetFont() );
 125
 126     Show( TRUE );
 127
 128     return TRUE;
 129 }
 130
 131 wxRadioBox::~wxRadioBox(void)
 132 {
 133     wxNode *node = m_boxes.First();
 134     while (node)
 135     {
 136         GtkWidget *button = GTK_WIDGET( node->Data() );
 137         gtk_widget_destroy( button );
 138         node = node->Next();
 139     }
 140 }
 141
 142 void wxRadioBox::OnSize( wxSizeEvent &event )
 143 {
 144     wxControl::OnSize( event );
 145
 146     LayoutItems();
 147 }
 148
 149 wxSize wxRadioBox::LayoutItems()
 150 {
 151     int x = 7;
 152     int y = 15;
 153
 154     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 155
 156     wxSize res( 0, 0 );
 157
 158     if (m_windowStyle & wxRA_HORIZONTAL)
 159     {
 160
 161         for (int j = 0; j < m_majorDim; j++)
 162         {
 163             y = 15;
 164
 165             int max_len = 0;
 166             wxNode *node = m_boxes.Nth( j*num_per_major );
 167             for (int i1 = 0; i1< num_per_major; i1++)
 168             {
 169                 GtkWidget *button = GTK_WIDGET( node->Data() );
 170                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 171                 GdkFont *font = m_widget->style->font;
 172                 int len = 22+gdk_string_measure( font, label->label );
 173                 if (len > max_len) max_len = len;
 174
 175                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 176                 y += 20;
 177
 178                 node = node->Next();
 179                 if (!node) break;
 180             }
 181
 182             // we don't know the max_len before
 183
 184             node = m_boxes.Nth( j*num_per_major );
 185             for (int i2 = 0; i2< num_per_major; i2++)
 186             {
 187                 GtkWidget *button = GTK_WIDGET( node->Data() );
 188
 189                 gtk_widget_set_usize( button, max_len, 20 );
 190
 191                 node = node->Next();
 192                 if (!node) break;
 193             }
 194
 195             if (y > res.y) res.y = y;
 196
 197             x += max_len + 2;
 198         }
 199
 200         res.x = x+4;
 201         res.y += 9;
 202     }
 203     else
 204     {
 205         int max = 0;
 206
 207         wxNode *node = m_boxes.First();
 208         while (node)
 209         {
 210             GtkButton *button = GTK_BUTTON( node->Data() );
 211             GtkLabel *label = GTK_LABEL( button->child );
 212
 213             GdkFont *font = m_widget->style->font;
 214             int len = 22+gdk_string_measure( font, label->label );
 215             if (len > max) max = len;
 216
 217             node = node->Next();
 218         }
 219
 220         node = m_boxes.First();
 221         while (node)
 222         {
 223             GtkWidget *button = GTK_WIDGET( node->Data() );
 224
 225             gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 226             x += max;
 227             gtk_widget_set_usize( button, max, 20 );
 228
 229             node = node->Next();
 230         }
 231         res.x = x+4;
 232         res.y = 42;
 233     }
 234
 235     return res;
 236 }
 237
 238 bool wxRadioBox::Show( bool show )
 239 {
 240     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 241
 242     wxWindow::Show( show );
 243
 244     wxNode *node = m_boxes.First();
 245     while (node)
 246     {
 247         GtkWidget *button = GTK_WIDGET( node->Data() );
 248
 249         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 250
 251         node = node->Next();
 252     }
 253
 254     return TRUE;
 255 }
 256
 257 int wxRadioBox::FindString( const wxString &s ) const
 258 {
 259     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 260
 261     int count = 0;
 262
 263     wxNode *node = m_boxes.First();
 264     while (node)
 265     {
 266         GtkButton *button = GTK_BUTTON( node->Data() );
 267
 268         GtkLabel *label = GTK_LABEL( button->child );
 269         if (s == label->label) return count;
 270         count++;
 271
 272         node = node->Next();
 273     }
 274
 275     return -1;
 276 }
 277
 278 void wxRadioBox::SetFocus()
 279 {
 280     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 281
 282     if (m_boxes.GetCount() == 0) return;
 283
 284     wxNode *node = m_boxes.First();
 285     while (node)
 286     {
 287         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 288         if (button->active)
 289         {
 290             gtk_widget_grab_focus( GTK_WIDGET(button) );
 291
 292             return;
 293         }
 294         node = node->Next();
 295     }
 296
 297 }
 298
 299 void wxRadioBox::SetSelection( int n )
 300 {
 301     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 302
 303     wxNode *node = m_boxes.Nth( n );
 304
 305     wxCHECK_RET( node, "radiobox wrong index" );
 306
 307     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 308
 309     gtk_toggle_button_set_state( button, 1 );
 310 }
 311
 312 int wxRadioBox::GetSelection(void) const
 313 {
 314     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 315
 316     int count = 0;
 317
 318     wxNode *node = m_boxes.First();
 319     while (node)
 320     {
 321         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 322         if (button->active) return count;
 323         count++;
 324         node = node->Next();
 325     }
 326
 327     wxFAIL_MSG( "wxRadioBox none selected" );
 328
 329     return -1;
 330 }
 331
 332 wxString wxRadioBox::GetString( int n ) const
 333 {
 334     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 335
 336     wxNode *node = m_boxes.Nth( n );
 337
 338     wxCHECK_MSG( node, "", "radiobox wrong index" );
 339
 340     GtkButton *button = GTK_BUTTON( node->Data() );
 341     GtkLabel *label = GTK_LABEL( button->child );
 342
 343     return wxString( label->label );
 344 }
 345
 346 wxString wxRadioBox::GetLabel( int item ) const
 347 {
 348     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 349
 350     return GetString( item );
 351 }
 352
 353 void wxRadioBox::SetLabel( const wxString& label )
 354 {
 355     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 356
 357     wxControl::SetLabel( label );
 358
 359     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel() );
 360 }
 361
 362 void wxRadioBox::SetLabel( int item, const wxString& label )
 363 {
 364     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 365
 366     wxNode *node = m_boxes.Nth( item );
 367
 368     wxCHECK_RET( node, "radiobox wrong index" );
 369
 370     GtkButton *button = GTK_BUTTON( node->Data() );
 371     GtkLabel *g_label = GTK_LABEL( button->child );
 372
 373     gtk_label_set( g_label, label );
 374 }
 375
 376 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 377 {
 378     wxFAIL_MSG("wxRadioBox::SetLabel not implemented.");
 379 }
 380
 381 void wxRadioBox::Enable( bool enable )
 382 {
 383     wxControl::Enable( enable );
 384
 385     wxNode *node = m_boxes.First();
 386     while (node)
 387     {
 388         GtkButton *button = GTK_BUTTON( node->Data() );
 389         GtkWidget *label = button->child;
 390         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 391         gtk_widget_set_sensitive( label, enable );
 392         node = node->Next();
 393     }
 394 }
 395
 396 void wxRadioBox::Enable( int item, bool enable )
 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     GtkButton *button = GTK_BUTTON( node->Data() );
 405     GtkWidget *label = button->child;
 406     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 407     gtk_widget_set_sensitive( label, enable );
 408 }
 409
 410 void wxRadioBox::Show( int item, bool show )
 411 {
 412     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 413
 414     wxNode *node = m_boxes.Nth( item );
 415
 416     wxCHECK_RET( node, "radiobox wrong index" );
 417
 418     GtkWidget *button = GTK_WIDGET( node->Data() );
 419
 420     if (show)
 421         gtk_widget_show( button );
 422     else
 423         gtk_widget_hide( button );
 424 }
 425
 426 wxString wxRadioBox::GetStringSelection(void) const
 427 {
 428     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 429
 430     wxNode *node = m_boxes.First();
 431     while (node)
 432     {
 433         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 434         if (button->active)
 435         {
 436             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 437             return label->label;
 438         }
 439         node = node->Next();
 440     }
 441
 442     wxFAIL_MSG( "wxRadioBox none selected" );
 443     return "";
 444 }
 445
 446 bool wxRadioBox::SetStringSelection( const wxString &s )
 447 {
 448     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 449
 450     int res = FindString( s );
 451     if (res == -1) return FALSE;
 452     SetSelection( res );
 453
 454     return TRUE;
 455 }
 456
 457 int wxRadioBox::Number(void) const
 458 {
 459     return m_boxes.Number();
 460 }
 461
 462 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 463 {
 464     return 1;
 465 }
 466
 467 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 468 {
 469     wxFAIL_MSG("wxRadioBox::SetNumberOfRowsOrCols not implemented.");
 470 }
 471
 472 void wxRadioBox::ApplyWidgetStyle()
 473 {
 474     SetWidgetStyle();
 475
 476     gtk_widget_set_style( m_widget, m_widgetStyle );
 477
 478     wxNode *node = m_boxes.First();
 479     while (node)
 480     {
 481         GtkWidget *widget = GTK_WIDGET( node->Data() );
 482         gtk_widget_set_style( widget, m_widgetStyle );
 483
 484         GtkButton *button = GTK_BUTTON( node->Data() );
 485         gtk_widget_set_style( button->child, m_widgetStyle );
 486
 487         node = node->Next();
 488     }
 489 }
 490
 491 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 492 {
 493     if (window == m_widget->window) return TRUE;
 494
 495     wxNode *node = m_boxes.First();
 496     while (node)
 497     {
 498         GtkWidget *button = GTK_WIDGET( node->Data() );
 499
 500         if (window == button->window) return TRUE;
 501
 502         node = node->Next();
 503     }
 504
 505     return FALSE;
 506 }