src/gtk/radiobut.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobut.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 "radiobut.h"
  13 #endif
  14
  15 #include "wx/radiobut.h"
  16 #include "gdk/gdk.h"
  17 #include "gtk/gtk.h"
  18
  19 //-----------------------------------------------------------------------------
  20 // data
  21 //-----------------------------------------------------------------------------
  22
  23 extern bool g_blockEventsOnDrag;
  24
  25 //-----------------------------------------------------------------------------
  26 // "clicked"
  27 //-----------------------------------------------------------------------------
  28
  29 static
  30 void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb )
  31 {
  32     if (!rb->HasVMT()) return;
  33
  34     if (rb->m_blockFirstEvent)
  35     {
  36         rb->m_blockFirstEvent = FALSE;
  37         return;
  38     }
  39
  40     if (g_blockEventsOnDrag) return;
  41
  42     wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
  43     event.SetInt( rb->GetValue() );
  44     event.SetEventObject( rb );
  45     rb->GetEventHandler()->ProcessEvent( event );
  46 }
  47
  48 //-----------------------------------------------------------------------------
  49 // wxRadioButton
  50 //-----------------------------------------------------------------------------
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
  53
  54 bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label,
  55   const wxPoint& pos,  const wxSize& size, long style,
  56   const wxValidator& validator, const wxString& name )
  57 {
  58     m_acceptsFocus = TRUE;
  59     m_needParent = TRUE;
  60
  61     wxSize newSize = size;
  62
  63     PreCreation( parent, id, pos, newSize, style, name );
  64
  65     SetValidator( validator );
  66
  67     m_widget = gtk_radio_button_new_with_label( (GSList *) NULL, label.mbc_str() );
  68
  69     m_theOtherRadioButtton =
  70        gtk_radio_button_new_with_label(
  71          gtk_radio_button_group( GTK_RADIO_BUTTON(m_widget) ),
  72          "button2" );
  73
  74     SetLabel(label);
  75
  76     m_blockFirstEvent = FALSE;
  77
  78     if (newSize.x == -1) newSize.x = 22+gdk_string_measure( m_widget->style->font, label.mbc_str() );
  79     if (newSize.y == -1) newSize.y = 26;
  80     SetSize( newSize.x, newSize.y );
  81
  82     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  83       GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
  84
  85     m_parent->AddChild( this );
  86
  87     (m_parent->m_insertCallback)( m_parent, this );
  88
  89     PostCreation();
  90
  91     SetBackgroundColour( parent->GetBackgroundColour() );
  92     SetForegroundColour( parent->GetForegroundColour() );
  93     SetFont( parent->GetFont() );
  94
  95     Show( TRUE );
  96
  97     return TRUE;
  98 }
  99
 100 void wxRadioButton::SetLabel( const wxString& label )
 101 {
 102     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 103
 104     wxControl::SetLabel( label );
 105     GtkButton *bin = GTK_BUTTON( m_widget );
 106     GtkLabel *g_label = GTK_LABEL( bin->child );
 107     gtk_label_set( g_label, GetLabel().mbc_str() );
 108 }
 109
 110 void wxRadioButton::SetValue( bool val )
 111 {
 112     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 113
 114     if ( val == GetValue() )
 115         return;
 116
 117     m_blockFirstEvent = TRUE;
 118
 119     if (val)
 120         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE );
 121     else
 122         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_theOtherRadioButtton), TRUE );
 123 }
 124
 125 bool wxRadioButton::GetValue(void) const
 126 {
 127     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobutton") );
 128
 129     return GTK_TOGGLE_BUTTON(m_widget)->active;
 130 }
 131
 132 void wxRadioButton::Enable( bool enable )
 133 {
 134     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 135
 136     wxControl::Enable( enable );
 137
 138     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 139 }
 140
 141 void wxRadioButton::ApplyWidgetStyle()
 142 {
 143     SetWidgetStyle();
 144     gtk_widget_set_style( m_widget, m_widgetStyle );
 145     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 146 }