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 #if wxUSE_RADIOBOX
  18
  19 #include "gdk/gdk.h"
  20 #include "gtk/gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // idle system
  24 //-----------------------------------------------------------------------------
  25
  26 extern void wxapp_install_idle_handler();
  27 extern bool g_isIdle;
  28
  29 //-----------------------------------------------------------------------------
  30 // data
  31 //-----------------------------------------------------------------------------
  32
  33 extern bool g_blockEventsOnDrag;
  34
  35 //-----------------------------------------------------------------------------
  36 // "clicked"
  37 //-----------------------------------------------------------------------------
  38
  39 static
  40 void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb )
  41 {
  42     if (g_isIdle) wxapp_install_idle_handler();
  43
  44     if (!rb->m_hasVMT) return;
  45
  46     if (rb->m_blockFirstEvent)
  47     {
  48         rb->m_blockFirstEvent = FALSE;
  49         return;
  50     }
  51
  52     if (g_blockEventsOnDrag) return;
  53
  54     wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
  55     event.SetInt( rb->GetValue() );
  56     event.SetEventObject( rb );
  57     rb->GetEventHandler()->ProcessEvent( event );
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61 // wxRadioButton
  62 //-----------------------------------------------------------------------------
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
  65
  66 bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label,
  67   const wxPoint& pos,  const wxSize& size, long style,
  68   const wxValidator& validator, const wxString& name )
  69 {
  70     m_acceptsFocus = TRUE;
  71     m_needParent = TRUE;
  72
  73     wxSize newSize = size;
  74
  75     PreCreation( parent, id, pos, newSize, style, name );
  76
  77 #if wxUSE_VALIDATORS
  78     SetValidator( validator );
  79 #endif
  80
  81     m_widget = gtk_radio_button_new_with_label( (GSList *) NULL, label.mbc_str() );
  82
  83     m_theOtherRadioButtton =
  84        gtk_radio_button_new_with_label(
  85          gtk_radio_button_group( GTK_RADIO_BUTTON(m_widget) ),
  86          "button2" );
  87
  88     SetLabel(label);
  89
  90     m_blockFirstEvent = FALSE;
  91
  92     if (newSize.x == -1) newSize.x = 22+gdk_string_measure( m_widget->style->font, label.mbc_str() );
  93     if (newSize.y == -1) newSize.y = 26;
  94     SetSize( newSize.x, newSize.y );
  95
  96     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  97       GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
  98
  99     m_parent->DoAddChild( this );
 100
 101     PostCreation();
 102
 103     SetBackgroundColour( parent->GetBackgroundColour() );
 104     SetForegroundColour( parent->GetForegroundColour() );
 105     SetFont( parent->GetFont() );
 106
 107     Show( TRUE );
 108
 109     return TRUE;
 110 }
 111
 112 void wxRadioButton::SetLabel( const wxString& label )
 113 {
 114     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 115
 116     wxControl::SetLabel( label );
 117     GtkButton *bin = GTK_BUTTON( m_widget );
 118     GtkLabel *g_label = GTK_LABEL( bin->child );
 119     gtk_label_set( g_label, GetLabel().mbc_str() );
 120 }
 121
 122 void wxRadioButton::SetValue( bool val )
 123 {
 124     wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") );
 125
 126     if ( val == GetValue() )
 127         return;
 128
 129     m_blockFirstEvent = TRUE;
 130
 131     if (val)
 132         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE );
 133     else
 134         gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_theOtherRadioButtton), TRUE );
 135 }
 136
 137 bool wxRadioButton::GetValue() const
 138 {
 139     wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobutton") );
 140
 141     return GTK_TOGGLE_BUTTON(m_widget)->active;
 142 }
 143
 144 bool wxRadioButton::Enable( bool enable )
 145 {
 146     if ( !wxControl::Enable( enable ) )
 147         return FALSE;
 148
 149     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 150
 151     return TRUE;
 152 }
 153
 154 void wxRadioButton::ApplyWidgetStyle()
 155 {
 156     SetWidgetStyle();
 157     gtk_widget_set_style( m_widget, m_widgetStyle );
 158     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 159 }
 160
 161 #endif