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 );
  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 );
  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
  94     Show( TRUE );
  95
  96     return TRUE;
  97 }
  98
  99 void wxRadioButton::SetLabel( const wxString& label )
 100 {
 101     wxCHECK_RET( m_widget != NULL, "invalid radiobutton" );
 102
 103     wxControl::SetLabel( label );
 104     GtkButton *bin = GTK_BUTTON( m_widget );
 105     GtkLabel *g_label = GTK_LABEL( bin->child );
 106     gtk_label_set( g_label, GetLabel() );
 107 }
 108
 109 void wxRadioButton::SetValue( bool val )
 110 {
 111     wxCHECK_RET( m_widget != NULL, "invalid radiobutton" );
 112
 113     if ( val == GetValue() )
 114         return;
 115
 116     m_blockFirstEvent = TRUE;
 117
 118     if (val)
 119         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE );
 120     else
 121         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_theOtherRadioButtton), TRUE );
 122 }
 123
 124 bool wxRadioButton::GetValue(void) const
 125 {
 126     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid radiobutton" );
 127
 128     return GTK_TOGGLE_BUTTON(m_widget)->active;
 129 }
 130
 131 void wxRadioButton::Enable( bool enable )
 132 {
 133     wxCHECK_RET( m_widget != NULL, "invalid radiobutton" );
 134
 135     wxControl::Enable( enable );
 136
 137     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 138 }
 139
 140 void wxRadioButton::ApplyWidgetStyle()
 141 {
 142     SetWidgetStyle();
 143     gtk_widget_set_style( m_widget, m_widgetStyle );
 144     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 145 }
 146
 147