src/gtk1/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/radiobox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Copyright:   (c) 1998 Robert Roebling
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_RADIOBOX
  13
  14 #include "wx/radiobox.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/log.h"
  18     #include "wx/frame.h"
  19     #include "wx/dialog.h"
  20 #endif
  21
  22 #include "wx/gtk1/private.h"
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "wx/gtk1/win_gtk.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool          g_blockEventsOnDrag;
  39 extern wxWindowGTK  *g_delayedFocus;
  40
  41 //-----------------------------------------------------------------------------
  42 // "clicked"
  43 //-----------------------------------------------------------------------------
  44
  45 extern "C" {
  46 static void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioBox *rb )
  47 {
  48     if (g_isIdle) wxapp_install_idle_handler();
  49
  50     if (!rb->m_hasVMT) return;
  51     if (g_blockEventsOnDrag) return;
  52
  53     if (!button->active) return;
  54
  55     wxCommandEvent event( wxEVT_RADIOBOX, rb->GetId() );
  56     event.SetInt( rb->GetSelection() );
  57     event.SetString( rb->GetStringSelection() );
  58     event.SetEventObject( rb );
  59     rb->HandleWindowEvent(event);
  60 }
  61 }
  62
  63 //-----------------------------------------------------------------------------
  64 // "key_press_event"
  65 //-----------------------------------------------------------------------------
  66
  67 extern "C" {
  68 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
  69 {
  70     if (g_isIdle)
  71         wxapp_install_idle_handler();
  72
  73     if (!rb->m_hasVMT) return FALSE;
  74     if (g_blockEventsOnDrag) return FALSE;
  75
  76     if ((gdk_event->keyval != GDK_Up) &&
  77         (gdk_event->keyval != GDK_Down) &&
  78         (gdk_event->keyval != GDK_Left) &&
  79         (gdk_event->keyval != GDK_Right))
  80     {
  81         return FALSE;
  82     }
  83
  84     wxList::compatibility_iterator node = rb->m_boxes.Find( (wxObject*) widget );
  85     if (!node)
  86     {
  87         return FALSE;
  88     }
  89
  90     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
  91
  92     if ((gdk_event->keyval == GDK_Up) ||
  93         (gdk_event->keyval == GDK_Left))
  94     {
  95         if (node == rb->m_boxes.GetFirst())
  96             node = rb->m_boxes.GetLast();
  97         else
  98             node = node->GetPrevious();
  99     }
 100     else
 101     {
 102         if (node == rb->m_boxes.GetLast())
 103             node = rb->m_boxes.GetFirst();
 104         else
 105             node = node->GetNext();
 106     }
 107
 108     GtkWidget *button = (GtkWidget*) node->GetData();
 109
 110     gtk_widget_grab_focus( button );
 111
 112     return TRUE;
 113 }
 114 }
 115
 116 extern "C" {
 117 static gint gtk_radiobutton_focus_in( GtkWidget *WXUNUSED(widget),
 118                                       GdkEvent *WXUNUSED(event),
 119                                       wxRadioBox *win )
 120 {
 121     if ( win->m_lostFocus )
 122     {
 123         // no, we didn't really lose it
 124         win->m_lostFocus = FALSE;
 125     }
 126     else if ( !win->m_hasFocus )
 127     {
 128         win->m_hasFocus = true;
 129
 130         wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
 131         event.SetEventObject( win );
 132
 133         // never stop the signal emission, it seems to break the kbd handling
 134         // inside the radiobox
 135         (void)win->HandleWindowEvent( event );
 136     }
 137
 138     return FALSE;
 139 }
 140 }
 141
 142 extern "C" {
 143 static gint gtk_radiobutton_focus_out( GtkWidget *WXUNUSED(widget),
 144                                        GdkEvent *WXUNUSED(event),
 145                                        wxRadioBox *win )
 146 {
 147   //    wxASSERT_MSG( win->m_hasFocus, wxT("got focus out without any focus in?") );
 148   // Replace with a warning, else we dump core a lot!
 149   //  if (!win->m_hasFocus)
 150   //      wxLogWarning(wxT("Radiobox got focus out without any focus in.") );
 151
 152     // we might have lost the focus, but may be not - it may have just gone to
 153     // another button in the same radiobox, so we'll check for it in the next
 154     // idle iteration (leave m_hasFocus == true for now)
 155     win->m_lostFocus = true;
 156
 157     return FALSE;
 158 }
 159 }
 160
 161 //-----------------------------------------------------------------------------
 162 // wxRadioBox
 163 //-----------------------------------------------------------------------------
 164
 165 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
 166
 167 void wxRadioBox::Init()
 168 {
 169     m_needParent = true;
 170     m_acceptsFocus = true;
 171
 172     m_hasFocus =
 173     m_lostFocus = false;
 174 }
 175
 176 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id,
 177                          const wxString& title,
 178                          const wxPoint &pos, const wxSize &size,
 179                          const wxArrayString& choices, int majorDim,
 180                          long style, const wxValidator& validator,
 181                          const wxString &name )
 182 {
 183     wxCArrayString chs(choices);
 184
 185     return Create( parent, id, title, pos, size, chs.GetCount(),
 186                    chs.GetStrings(), majorDim, style, validator, name );
 187 }
 188
 189 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
 190                          const wxPoint &pos, const wxSize &size,
 191                          int n, const wxString choices[], int majorDim,
 192                          long style, const wxValidator& validator,
 193                          const wxString &name )
 194 {
 195     if (!PreCreation( parent, pos, size ) ||
 196         !CreateBase( parent, id, pos, size, style, validator, name ))
 197     {
 198         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
 199         return false;
 200     }
 201
 202     m_widget = gtk_frame_new(NULL);
 203     SetLabel(title);
 204     if ( HasFlag(wxNO_BORDER) )
 205     {
 206         // If we don't do this here, the wxNO_BORDER style is ignored in Show()
 207         gtk_frame_set_shadow_type(GTK_FRAME(m_widget), GTK_SHADOW_NONE);
 208     }
 209
 210     // majorDim may be 0 if all trailing parameters were omitted, so don't
 211     // assert here but just use the correct value for it
 212     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 213
 214
 215     unsigned int num_of_cols = GetColumnCount();
 216     unsigned int num_of_rows = GetRowCount();
 217
 218     GtkRadioButton *m_radio = NULL;
 219
 220     GtkWidget *table = gtk_table_new( num_of_rows, num_of_cols, FALSE );
 221     gtk_table_set_col_spacings( GTK_TABLE(table), 1 );
 222     gtk_table_set_row_spacings( GTK_TABLE(table), 1 );
 223     gtk_widget_show( table );
 224     gtk_container_add( GTK_CONTAINER(m_widget), table );
 225
 226     wxString label;
 227     GSList *radio_button_group = NULL;
 228     for (int i = 0; i < n; i++)
 229     {
 230         if ( i != 0 )
 231             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 232
 233         label.Empty();
 234         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 235         {
 236             if ( *pc != wxT('&') )
 237                 label += *pc;
 238         }
 239
 240         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, wxGTK_CONV( label ) ) );
 241         gtk_widget_show( GTK_WIDGET(m_radio) );
 242
 243         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 244            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 245
 246         m_boxes.Append( (wxObject*) m_radio );
 247
 248         if (HasFlag(wxRA_SPECIFY_COLS))
 249         {
 250             int left = i%num_of_cols;
 251             int right = (i%num_of_cols) + 1;
 252             int top = i/num_of_cols;
 253             int bottom = (i/num_of_cols)+1;
 254             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 255                   GTK_FILL, GTK_FILL, 1, 1 );
 256         }
 257         else
 258         {
 259             int left = i/num_of_rows;
 260             int right = (i/num_of_rows) + 1;
 261             int top = i%num_of_rows;
 262             int bottom = (i%num_of_rows)+1;
 263             gtk_table_attach( GTK_TABLE(table), GTK_WIDGET(m_radio), left, right, top, bottom,
 264                   GTK_FILL, GTK_FILL, 1, 1 );
 265         }
 266
 267         ConnectWidget( GTK_WIDGET(m_radio) );
 268
 269         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 270
 271         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 272             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 273
 274         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_in_event",
 275             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_in), (gpointer)this );
 276
 277         gtk_signal_connect( GTK_OBJECT(m_radio), "focus_out_event",
 278             GTK_SIGNAL_FUNC(gtk_radiobutton_focus_out), (gpointer)this );
 279     }
 280
 281     m_parent->DoAddChild( this );
 282
 283     PostCreation(size);
 284
 285     return true;
 286 }
 287
 288 wxRadioBox::~wxRadioBox()
 289 {
 290     wxList::compatibility_iterator node = m_boxes.GetFirst();
 291     while (node)
 292     {
 293         GtkWidget *button = GTK_WIDGET( node->GetData() );
 294         gtk_widget_destroy( button );
 295         node = node->GetNext();
 296     }
 297 }
 298
 299 bool wxRadioBox::Show(bool show)
 300 {
 301     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 302
 303     if (!wxControl::Show(show))
 304     {
 305         // nothing to do
 306         return false;
 307     }
 308
 309     if ( HasFlag(wxNO_BORDER) )
 310         gtk_widget_hide( m_widget );
 311
 312     wxList::compatibility_iterator node = m_boxes.GetFirst();
 313     while (node)
 314     {
 315         GtkWidget *button = GTK_WIDGET( node->GetData() );
 316
 317         if (show)
 318             gtk_widget_show( button );
 319         else
 320             gtk_widget_hide( button );
 321
 322         node = node->GetNext();
 323     }
 324
 325     return true;
 326 }
 327
 328 void wxRadioBox::SetFocus()
 329 {
 330     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 331
 332     if (m_boxes.GetCount() == 0) return;
 333
 334     wxList::compatibility_iterator node = m_boxes.GetFirst();
 335     while (node)
 336     {
 337         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 338         if (button->active)
 339         {
 340             gtk_widget_grab_focus( GTK_WIDGET(button) );
 341             return;
 342         }
 343         node = node->GetNext();
 344     }
 345 }
 346
 347 void wxRadioBox::SetSelection( int n )
 348 {
 349     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 350
 351     wxList::compatibility_iterator node = m_boxes.Item( n );
 352
 353     wxCHECK_RET( node, wxT("radiobox wrong index") );
 354
 355     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 356
 357     GtkDisableEvents();
 358
 359     gtk_toggle_button_set_active( button, 1 );
 360
 361     GtkEnableEvents();
 362 }
 363
 364 int wxRadioBox::GetSelection(void) const
 365 {
 366     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid radiobox") );
 367
 368     int count = 0;
 369
 370     wxList::compatibility_iterator node = m_boxes.GetFirst();
 371     while (node)
 372     {
 373         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->GetData() );
 374         if (button->active) return count;
 375         count++;
 376         node = node->GetNext();
 377     }
 378
 379     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 380
 381     return wxNOT_FOUND;
 382 }
 383
 384 wxString wxRadioBox::GetString(unsigned int n) const
 385 {
 386     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid radiobox") );
 387
 388     wxList::compatibility_iterator node = m_boxes.Item( n );
 389
 390     wxCHECK_MSG( node, wxEmptyString, wxT("radiobox wrong index") );
 391
 392     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 393
 394     wxString str( label->label );
 395
 396     return str;
 397 }
 398
 399 void wxRadioBox::SetLabel( const wxString& label )
 400 {
 401     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 402
 403     GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
 404 }
 405
 406 void wxRadioBox::SetString(unsigned int item, const wxString& label)
 407 {
 408     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 409
 410     wxList::compatibility_iterator node = m_boxes.Item( item );
 411
 412     wxCHECK_RET( node, wxT("radiobox wrong index") );
 413
 414     GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(node->GetData()) );
 415
 416     gtk_label_set( g_label, wxGTK_CONV( label ) );
 417 }
 418
 419 bool wxRadioBox::Enable( bool enable )
 420 {
 421     if ( !wxControl::Enable( enable ) )
 422         return false;
 423
 424     wxList::compatibility_iterator node = m_boxes.GetFirst();
 425     while (node)
 426     {
 427         GtkButton *button = GTK_BUTTON( node->GetData() );
 428         GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 429
 430         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 431         gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 432         node = node->GetNext();
 433     }
 434
 435     return true;
 436 }
 437
 438 bool wxRadioBox::Enable(unsigned int item, bool enable)
 439 {
 440     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 441
 442     wxList::compatibility_iterator node = m_boxes.Item( item );
 443
 444     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 445
 446     GtkButton *button = GTK_BUTTON( node->GetData() );
 447     GtkLabel *label = GTK_LABEL( BUTTON_CHILD(button) );
 448
 449     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 450     gtk_widget_set_sensitive( GTK_WIDGET(label), enable );
 451
 452     return true;
 453 }
 454
 455 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 456 {
 457     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 458
 459     wxList::compatibility_iterator node = m_boxes.Item( item );
 460
 461     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 462
 463     GtkButton *button = GTK_BUTTON( node->GetData() );
 464
 465     // don't use GTK_WIDGET_IS_SENSITIVE() here, we want to return true even if
 466     // the parent radiobox is disabled
 467     return GTK_WIDGET_SENSITIVE(GTK_WIDGET(button));
 468 }
 469
 470 bool wxRadioBox::Show(unsigned int item, bool show)
 471 {
 472     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 473
 474     wxList::compatibility_iterator node = m_boxes.Item( item );
 475
 476     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 477
 478     GtkWidget *button = GTK_WIDGET( node->GetData() );
 479
 480     if (show)
 481         gtk_widget_show( button );
 482     else
 483         gtk_widget_hide( button );
 484
 485     return true;
 486 }
 487
 488 bool wxRadioBox::IsItemShown(unsigned int item) const
 489 {
 490     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobox") );
 491
 492     wxList::compatibility_iterator node = m_boxes.Item( item );
 493
 494     wxCHECK_MSG( node, false, wxT("radiobox wrong index") );
 495
 496     GtkButton *button = GTK_BUTTON( node->GetData() );
 497
 498     return GTK_WIDGET_VISIBLE(GTK_WIDGET(button));
 499 }
 500
 501 unsigned int wxRadioBox::GetCount() const
 502 {
 503     return m_boxes.GetCount();
 504 }
 505
 506 void wxRadioBox::GtkDisableEvents()
 507 {
 508     wxList::compatibility_iterator node = m_boxes.GetFirst();
 509     while (node)
 510     {
 511         gtk_signal_disconnect_by_func( GTK_OBJECT(node->GetData()),
 512            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 513
 514         node = node->GetNext();
 515     }
 516 }
 517
 518 void wxRadioBox::GtkEnableEvents()
 519 {
 520     wxList::compatibility_iterator node = m_boxes.GetFirst();
 521     while (node)
 522     {
 523         gtk_signal_connect( GTK_OBJECT(node->GetData()), "clicked",
 524            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 525
 526         node = node->GetNext();
 527     }
 528 }
 529
 530 void wxRadioBox::DoApplyWidgetStyle(GtkRcStyle *style)
 531 {
 532     gtk_widget_modify_style( m_widget, style );
 533
 534     wxList::compatibility_iterator node = m_boxes.GetFirst();
 535     while (node)
 536     {
 537         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 538
 539         gtk_widget_modify_style( widget, style );
 540         gtk_widget_modify_style( BUTTON_CHILD(node->GetData()), style );
 541
 542         node = node->GetNext();
 543     }
 544 }
 545
 546 #if wxUSE_TOOLTIPS
 547 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 548 {
 549     wxList::compatibility_iterator node = m_boxes.GetFirst();
 550     while (node)
 551     {
 552         GtkWidget *widget = GTK_WIDGET( node->GetData() );
 553         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), NULL );
 554         node = node->GetNext();
 555     }
 556 }
 557 #endif // wxUSE_TOOLTIPS
 558
 559 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 560 {
 561     if (window == m_widget->window)
 562         return true;
 563
 564     wxList::compatibility_iterator node = m_boxes.GetFirst();
 565     while (node)
 566     {
 567         GtkWidget *button = GTK_WIDGET( node->GetData() );
 568
 569         if (window == button->window)
 570             return true;
 571
 572         node = node->GetNext();
 573     }
 574
 575     return false;
 576 }
 577
 578 void wxRadioBox::OnInternalIdle()
 579 {
 580     if ( m_lostFocus )
 581     {
 582         m_hasFocus = false;
 583         m_lostFocus = false;
 584
 585         wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
 586         event.SetEventObject( this );
 587
 588         (void)HandleWindowEvent( event );
 589     }
 590
 591     if (g_delayedFocus == this)
 592     {
 593         if (GTK_WIDGET_REALIZED(m_widget))
 594         {
 595             g_delayedFocus = NULL;
 596             SetFocus();
 597         }
 598     }
 599 }
 600
 601 // static
 602 wxVisualAttributes
 603 wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 604 {
 605     wxVisualAttributes attr;
 606     // NB: we need toplevel window so that GTK+ can find the right style
 607     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 608     GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
 609     gtk_container_add(GTK_CONTAINER(wnd), widget);
 610     attr = GetDefaultAttributesFromGTKWidget(widget);
 611     gtk_widget_destroy(wnd);
 612     return attr;
 613 }
 614
 615 #endif // wxUSE_RADIOBOX