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 // idle system
  21 //-----------------------------------------------------------------------------
  22
  23 extern void wxapp_install_idle_handler();
  24 extern bool g_isIdle;
  25
  26 //-----------------------------------------------------------------------------
  27 // data
  28 //-----------------------------------------------------------------------------
  29
  30 extern bool g_blockEventsOnDrag;
  31
  32 //-----------------------------------------------------------------------------
  33 // "clicked"
  34 //-----------------------------------------------------------------------------
  35
  36 static
  37 void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb )
  38 {
  39     if (g_isIdle) wxapp_install_idle_handler();
  40
  41     if (!rb->m_hasVMT) return;
  42
  43     if (rb->m_blockFirstEvent)
  44     {
  45         rb->m_blockFirstEvent = FALSE;
  46         return;
  47     }
  48
  49     if (g_blockEventsOnDrag) return;
  50
  51     wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
  52     event.SetInt( rb->GetValue() );
  53     event.SetEventObject( rb );
  54     rb->GetEventHandler()->ProcessEvent( event );
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // wxRadioButton
  59 //-----------------------------------------------------------------------------
  60
  61 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
  62
  63 bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label,
  64   const wxPoint& pos,  const wxSize& size, long style,
  65   const wxValidator& validator, const wxString& name )
  66 {
  67     m_acceptsFocus = TRUE;
  68     m_needParent = TRUE;
  69
  70     wxSize newSize = size;
  71
  72     PreCreation( parent, id, pos, newSize, style, name );
  73
  74     SetValidator( validator );
  75
  76     m_widget = gtk_radio_button_new_with_label( (GSList *) NULL, label.mbc_str() );
  77
  78     m_theOtherRadioButtton =
  79        gtk_radio_button_new_with_label(
  80          gtk_radio_button_group( GTK_RADIO_BUTTON(m_widget) ),
  81          "button2" );
  82
  83     SetLabel(label);
  84
  85     m_blockFirstEvent = FALSE;
  86
  87     if (newSize.x == -1) newSize.x = 22+gdk_string_measure( m_widget->style->font, label.mbc_str() );
  88     if (newSize.y == -1) newSize.y = 26;
  89     SetSize( newSize.x, newSize.y );
  90
  91     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  92       GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
  93
  94     m_parent->DoAddChild( this );
  95
  96     PostCreation();
  97
  98     SetBackgroundColour( parent->GetBackgroundColour() );
  99     SetForegroundColour( parent->GetForegroundColour() );
 100     SetFont( parent->GetFont() );
 101
 102     Show( TRUE );
 103
 104     return TRUE;
 105 }
 106
 107 void wxRadioButton::SetLabel( const wxString& label )
 108 {
 109     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 110
 111     wxControl::SetLabel( label );
 112     GtkButton *bin = GTK_BUTTON( m_widget );
 113     GtkLabel *g_label = GTK_LABEL( bin->child );
 114     gtk_label_set( g_label, GetLabel().mbc_str() );
 115 }
 116
 117 void wxRadioButton::SetValue( bool val )
 118 {
 119     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 120
 121     if ( val == GetValue() )
 122         return;
 123
 124     m_blockFirstEvent = TRUE;
 125
 126     if (val)
 127         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE );
 128     else
 129         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_theOtherRadioButtton), TRUE );
 130 }
 131
 132 bool wxRadioButton::GetValue(void) const
 133 {
 134     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobutton") );
 135
 136     return GTK_TOGGLE_BUTTON(m_widget)->active;
 137 }
 138
 139 bool wxRadioButton::Enable( bool enable )
 140 {
 141     if ( !wxControl::Enable( enable ) )
 142         return FALSE;
 143
 144     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 145
 146     return TRUE;
 147 }
 148
 149 void wxRadioButton::ApplyWidgetStyle()
 150 {
 151     SetWidgetStyle();
 152     gtk_widget_set_style( m_widget, m_widgetStyle );
 153     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 154 }