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     event.SetString( rb->GetStringSelection() );
  48     event.SetEventObject( rb );
  49     rb->GetEventHandler()->ProcessEvent(event);
  50 }
  51
  52 //-----------------------------------------------------------------------------
  53 // wxRadioBox
  54 //-----------------------------------------------------------------------------
  55
  56 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
  57
  58 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  59     EVT_SIZE(wxRadioBox::OnSize)
  60 END_EVENT_TABLE()
  61
  62 wxRadioBox::wxRadioBox(void)
  63 {
  64 }
  65
  66 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
  67                          const wxPoint &pos, const wxSize &size,
  68                          int n, const wxString choices[], int majorDim,
  69                          long style, const wxValidator& validator,
  70                          const wxString &name )
  71 {
  72     m_alreadySent = FALSE;
  73     m_needParent = TRUE;
  74     m_acceptsFocus = TRUE;
  75
  76     PreCreation( parent, id, pos, size, style, name );
  77
  78     SetValidator( validator );
  79
  80     m_widget = gtk_frame_new( title );
  81
  82     m_majorDim = majorDim;
  83
  84     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
  85
  86     GSList *radio_button_group = (GSList *) NULL;
  87     for (int i = 0; i < n; i++)
  88     {
  89         if (i) radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
  90
  91         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, choices[i] ) );
  92
  93         m_boxes.Append( (wxObject*) m_radio );
  94
  95         ConnectWidget( GTK_WIDGET(m_radio) );
  96
  97         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
  98
  99         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 100            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 101
 102         gtk_myfixed_put( GTK_MYFIXED(m_parent->m_wxwindow), GTK_WIDGET(m_radio), m_x+10, m_y+10+(i*24) );
 103
 104     }
 105
 106     wxSize ls = LayoutItems();
 107
 108     wxSize newSize = size;
 109     if (newSize.x == -1) newSize.x = ls.x;
 110     if (newSize.y == -1) newSize.y = ls.y;
 111     SetSize( newSize.x, newSize.y );
 112
 113     m_parent->AddChild( this );
 114
 115     (m_parent->m_insertCallback)( m_parent, this );
 116
 117     PostCreation();
 118
 119     SetLabel( title );
 120
 121     SetBackgroundColour( parent->GetBackgroundColour() );
 122     SetForegroundColour( parent->GetForegroundColour() );
 123     SetFont( parent->GetFont() );
 124
 125     Show( TRUE );
 126
 127     return TRUE;
 128 }
 129
 130 wxRadioBox::~wxRadioBox(void)
 131 {
 132     wxNode *node = m_boxes.First();
 133     while (node)
 134     {
 135         GtkWidget *button = GTK_WIDGET( node->Data() );
 136         gtk_widget_destroy( button );
 137         node = node->Next();
 138     }
 139 }
 140
 141 void wxRadioBox::OnSize( wxSizeEvent &event )
 142 {
 143     wxControl::OnSize( event );
 144
 145     LayoutItems();
 146 }
 147
 148 wxSize wxRadioBox::LayoutItems()
 149 {
 150     int x = 7;
 151     int y = 15;
 152
 153     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 154
 155     wxSize res( 0, 0 );
 156
 157     if (m_windowStyle & wxRA_HORIZONTAL)
 158     {
 159
 160         for (int j = 0; j < m_majorDim; j++)
 161         {
 162             y = 15;
 163
 164             int max_len = 0;
 165             wxNode *node = m_boxes.Nth( j*num_per_major );
 166             for (int i1 = 0; i1< num_per_major; i1++)
 167             {
 168                 GtkWidget *button = GTK_WIDGET( node->Data() );
 169                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 170                 GdkFont *font = m_widget->style->font;
 171                 int len = 22+gdk_string_measure( font, label->label );
 172                 if (len > max_len) max_len = len;
 173
 174                 gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 175                 y += 20;
 176
 177                 node = node->Next();
 178                 if (!node) break;
 179             }
 180
 181             // we don't know the max_len before
 182
 183             node = m_boxes.Nth( j*num_per_major );
 184             for (int i2 = 0; i2< num_per_major; i2++)
 185             {
 186                 GtkWidget *button = GTK_WIDGET( node->Data() );
 187
 188                 gtk_widget_set_usize( button, max_len, 20 );
 189
 190                 node = node->Next();
 191                 if (!node) break;
 192             }
 193
 194             if (y > res.y) res.y = y;
 195
 196             x += max_len + 2;
 197         }
 198
 199         res.x = x+4;
 200         res.y += 9;
 201     }
 202     else
 203     {
 204         int max = 0;
 205
 206         wxNode *node = m_boxes.First();
 207         while (node)
 208         {
 209             GtkButton *button = GTK_BUTTON( node->Data() );
 210             GtkLabel *label = GTK_LABEL( button->child );
 211
 212             GdkFont *font = m_widget->style->font;
 213             int len = 22+gdk_string_measure( font, label->label );
 214             if (len > max) max = len;
 215
 216             node = node->Next();
 217         }
 218
 219         node = m_boxes.First();
 220         while (node)
 221         {
 222             GtkWidget *button = GTK_WIDGET( node->Data() );
 223
 224             gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 225             x += max;
 226             gtk_widget_set_usize( button, max, 20 );
 227
 228             node = node->Next();
 229         }
 230         res.x = x+4;
 231         res.y = 42;
 232     }
 233
 234     return res;
 235 }
 236
 237 bool wxRadioBox::Show( bool show )
 238 {
 239     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 240
 241     wxWindow::Show( show );
 242
 243     wxNode *node = m_boxes.First();
 244     while (node)
 245     {
 246         GtkWidget *button = GTK_WIDGET( node->Data() );
 247
 248         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 249
 250         node = node->Next();
 251     }
 252
 253     return TRUE;
 254 }
 255
 256 int wxRadioBox::FindString( const wxString &s ) const
 257 {
 258     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 259
 260     int count = 0;
 261
 262     wxNode *node = m_boxes.First();
 263     while (node)
 264     {
 265         GtkButton *button = GTK_BUTTON( node->Data() );
 266
 267         GtkLabel *label = GTK_LABEL( button->child );
 268         if (s == label->label) return count;
 269         count++;
 270
 271         node = node->Next();
 272     }
 273
 274     return -1;
 275 }
 276
 277 void wxRadioBox::SetFocus()
 278 {
 279     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 280
 281     if (m_boxes.GetCount() == 0) return;
 282
 283     wxNode *node = m_boxes.First();
 284     while (node)
 285     {
 286         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 287         if (button->active)
 288         {
 289             gtk_widget_grab_focus( GTK_WIDGET(button) );
 290
 291             return;
 292         }
 293         node = node->Next();
 294     }
 295
 296 }
 297
 298 void wxRadioBox::SetSelection( int n )
 299 {
 300     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 301
 302     wxNode *node = m_boxes.Nth( n );
 303
 304     wxCHECK_RET( node, "radiobox wrong index" );
 305
 306     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 307
 308     gtk_toggle_button_set_state( button, 1 );
 309 }
 310
 311 int wxRadioBox::GetSelection(void) const
 312 {
 313     wxCHECK_MSG( m_widget != NULL, -1, "invalid radiobox" );
 314
 315     int count = 0;
 316
 317     wxNode *node = m_boxes.First();
 318     while (node)
 319     {
 320         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 321         if (button->active) return count;
 322         count++;
 323         node = node->Next();
 324     }
 325
 326     wxFAIL_MSG( "wxRadioBox none selected" );
 327
 328     return -1;
 329 }
 330
 331 wxString wxRadioBox::GetString( int n ) const
 332 {
 333     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 334
 335     wxNode *node = m_boxes.Nth( n );
 336
 337     wxCHECK_MSG( node, "", "radiobox wrong index" );
 338
 339     GtkButton *button = GTK_BUTTON( node->Data() );
 340     GtkLabel *label = GTK_LABEL( button->child );
 341
 342     return wxString( label->label );
 343 }
 344
 345 wxString wxRadioBox::GetLabel( int item ) const
 346 {
 347     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 348
 349     return GetString( item );
 350 }
 351
 352 void wxRadioBox::SetLabel( const wxString& label )
 353 {
 354     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 355
 356     wxControl::SetLabel( label );
 357
 358     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel() );
 359 }
 360
 361 void wxRadioBox::SetLabel( int item, const wxString& label )
 362 {
 363     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 364
 365     wxNode *node = m_boxes.Nth( item );
 366
 367     wxCHECK_RET( node, "radiobox wrong index" );
 368
 369     GtkButton *button = GTK_BUTTON( node->Data() );
 370     GtkLabel *g_label = GTK_LABEL( button->child );
 371
 372     gtk_label_set( g_label, label );
 373 }
 374
 375 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 376 {
 377     wxFAIL_MSG("wxRadioBox::SetLabel not implemented.");
 378 }
 379
 380 void wxRadioBox::Enable( bool enable )
 381 {
 382     wxControl::Enable( enable );
 383
 384     wxNode *node = m_boxes.First();
 385     while (node)
 386     {
 387         GtkButton *button = GTK_BUTTON( node->Data() );
 388         GtkWidget *label = button->child;
 389         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 390         gtk_widget_set_sensitive( label, enable );
 391         node = node->Next();
 392     }
 393 }
 394
 395 void wxRadioBox::Enable( int item, bool enable )
 396 {
 397     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 398
 399     wxNode *node = m_boxes.Nth( item );
 400
 401     wxCHECK_RET( node, "radiobox wrong index" );
 402
 403     GtkButton *button = GTK_BUTTON( node->Data() );
 404     GtkWidget *label = button->child;
 405     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 406     gtk_widget_set_sensitive( label, enable );
 407 }
 408
 409 void wxRadioBox::Show( int item, bool show )
 410 {
 411     wxCHECK_RET( m_widget != NULL, "invalid radiobox" );
 412
 413     wxNode *node = m_boxes.Nth( item );
 414
 415     wxCHECK_RET( node, "radiobox wrong index" );
 416
 417     GtkWidget *button = GTK_WIDGET( node->Data() );
 418
 419     if (show)
 420         gtk_widget_show( button );
 421     else
 422         gtk_widget_hide( button );
 423 }
 424
 425 wxString wxRadioBox::GetStringSelection(void) const
 426 {
 427     wxCHECK_MSG( m_widget != NULL, "", "invalid radiobox" );
 428
 429     wxNode *node = m_boxes.First();
 430     while (node)
 431     {
 432         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 433         if (button->active)
 434         {
 435             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 436             return label->label;
 437         }
 438         node = node->Next();
 439     }
 440
 441     wxFAIL_MSG( "wxRadioBox none selected" );
 442     return "";
 443 }
 444
 445 bool wxRadioBox::SetStringSelection( const wxString &s )
 446 {
 447     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobox" );
 448
 449     int res = FindString( s );
 450     if (res == -1) return FALSE;
 451     SetSelection( res );
 452
 453     return TRUE;
 454 }
 455
 456 int wxRadioBox::Number(void) const
 457 {
 458     return m_boxes.Number();
 459 }
 460
 461 int wxRadioBox::GetNumberOfRowsOrCols(void) const
 462 {
 463     return 1;
 464 }
 465
 466 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 467 {
 468     wxFAIL_MSG("wxRadioBox::SetNumberOfRowsOrCols not implemented.");
 469 }
 470
 471 void wxRadioBox::ApplyWidgetStyle()
 472 {
 473     SetWidgetStyle();
 474
 475     gtk_widget_set_style( m_widget, m_widgetStyle );
 476
 477     wxNode *node = m_boxes.First();
 478     while (node)
 479     {
 480         GtkWidget *widget = GTK_WIDGET( node->Data() );
 481         gtk_widget_set_style( widget, m_widgetStyle );
 482
 483         GtkButton *button = GTK_BUTTON( node->Data() );
 484         gtk_widget_set_style( button->child, m_widgetStyle );
 485
 486         node = node->Next();
 487     }
 488 }
 489
 490 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 491 {
 492     if (window == m_widget->window) return TRUE;
 493
 494     wxNode *node = m_boxes.First();
 495     while (node)
 496     {
 497         GtkWidget *button = GTK_WIDGET( node->Data() );
 498
 499         if (window == button->window) return TRUE;
 500
 501         node = node->Next();
 502     }
 503
 504     return FALSE;
 505 }