src/gtk/radiobut.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobut.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "radiobut.h"
  14 #endif
  15
  16 #include "wx/radiobut.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // data
  20 //-----------------------------------------------------------------------------
  21
  22 extern bool g_blockEventsOnDrag;
  23
  24 //-----------------------------------------------------------------------------
  25 // wxRadioButton
  26 //-----------------------------------------------------------------------------
  27
  28 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
  29
  30 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb )
  31 {
  32   if (!rb->HasVMT()) return;
  33   if (g_blockEventsOnDrag) return;
  34
  35   wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
  36   event.SetInt( rb->GetValue() );
  37   event.SetEventObject( rb );
  38   rb->GetEventHandler()->ProcessEvent( event );
  39 }
  40
  41 bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label,
  42   const wxPoint& pos,  const wxSize& size, long style,
  43   const wxValidator& validator, const wxString& name )
  44 {
  45   m_needParent = TRUE;
  46
  47   wxSize newSize = size;
  48
  49   PreCreation( parent, id, pos, newSize, style, name );
  50
  51   SetValidator( validator );
  52
  53   m_widget = gtk_radio_button_new_with_label( (GSList *) NULL, label );
  54
  55   SetLabel(label);
  56
  57   if (newSize.x == -1) newSize.x = 22+gdk_string_measure( m_widget->style->font, label );
  58   if (newSize.y == -1) newSize.y = 26;
  59   SetSize( newSize.x, newSize.y );
  60
  61   gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  62     GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
  63
  64   PostCreation();
  65
  66   Show( TRUE );
  67
  68   return TRUE;
  69 }
  70
  71 void wxRadioButton::SetLabel( const wxString& label )
  72 {
  73   wxControl::SetLabel( label );
  74   GtkButton *bin = GTK_BUTTON( m_widget );
  75   GtkLabel *g_label = GTK_LABEL( bin->child );
  76   gtk_label_set( g_label, GetLabel() );
  77 }
  78
  79 void wxRadioButton::SetValue( bool val )
  80 {
  81   gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), val );
  82 }
  83
  84 bool wxRadioButton::GetValue(void) const
  85 {
  86   return GTK_TOGGLE_BUTTON(m_widget)->active;
  87 }
  88
  89 void wxRadioButton::Enable( bool enable )
  90 {
  91   wxControl::Enable( enable );
  92   GtkButton *bin = GTK_BUTTON( m_widget );
  93   GtkWidget *label = bin->child;
  94   gtk_widget_set_sensitive( label, enable );
  95 }
  96
  97 void wxRadioButton::SetFont( const wxFont &font )
  98 {
  99   if (((wxFont*)&font)->Ok())
 100     m_font = font;
 101   else
 102     m_font = *wxSWISS_FONT;
 103
 104   GtkButton *bin = GTK_BUTTON( m_widget );
 105   GtkWidget *label = bin->child;
 106
 107   GtkStyle *style = (GtkStyle*) NULL;
 108   if (!m_hasOwnStyle)
 109   {
 110     m_hasOwnStyle = TRUE;
 111     style = gtk_style_copy( gtk_widget_get_style( label ) );
 112   }
 113   else
 114   {
 115     style = gtk_widget_get_style( label );
 116   }
 117
 118   gdk_font_unref( style->font );
 119   style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );
 120
 121   gtk_widget_set_style( label, style );
 122 }
 123