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