src/gtk/checkbox.cpp

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