src/gtk/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        checkbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "checkbox.h"
  14 #endif
  15
  16 #include "wx/checkbox.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // data
  20 //-----------------------------------------------------------------------------
  21
  22 extern bool   g_blockEventsOnDrag;
  23
  24 //-----------------------------------------------------------------------------
  25 // "clicked"
  26 //-----------------------------------------------------------------------------
  27
  28 static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
  29 {
  30   if (!cb->HasVMT()) return;
  31   if (g_blockEventsOnDrag) return;
  32
  33   wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  34   event.SetInt( cb->GetValue() );
  35   event.SetEventObject(cb);
  36   cb->GetEventHandler()->ProcessEvent(event);
  37 }
  38
  39 //-----------------------------------------------------------------------------
  40 // wxCheckBox
  41 //-----------------------------------------------------------------------------
  42
  43 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  44
  45 wxCheckBox::wxCheckBox(void)
  46 {
  47 }
  48
  49 bool wxCheckBox::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  50       const wxPoint &pos, const wxSize &size,
  51       long style, const wxValidator& validator, const wxString &name )
  52 {
  53   m_needParent = TRUE;
  54
  55   PreCreation( parent, id, pos, size, style, name );
  56
  57   SetValidator( validator );
  58
  59   SetLabel( label );
  60
  61   m_widget = gtk_check_button_new_with_label( m_label );
  62
  63   wxSize newSize = size;
  64   if (newSize.x == -1) newSize.x = 25+gdk_string_measure( m_widget->style->font, label );
  65   if (newSize.y == -1) newSize.y = 26;
  66   SetSize( newSize.x, newSize.y );
  67
  68   gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  69     GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback), (gpointer*)this );
  70
  71   PostCreation();
  72
  73   Show( TRUE );
  74
  75   return TRUE;
  76 }
  77
  78 void wxCheckBox::SetValue( bool state )
  79 {
  80   if (state)
  81     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), GTK_STATE_ACTIVE );
  82   else
  83     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), GTK_STATE_NORMAL );
  84 }
  85
  86 bool wxCheckBox::GetValue(void) const
  87 {
  88   GtkToggleButton *tb = GTK_TOGGLE_BUTTON(m_widget);
  89   return tb->active;
  90 }
  91
  92 void wxCheckBox::SetFont( const wxFont &font )
  93 {
  94   if (((wxFont*)&font)->Ok())
  95     m_font = font;
  96   else
  97     m_font = *wxSWISS_FONT;
  98
  99   GtkButton *bin = GTK_BUTTON( m_widget );
 100   GtkWidget *label = bin->child;
 101
 102   GtkStyle *style = (GtkStyle*) NULL;
 103   if (!m_hasOwnStyle)
 104   {
 105     m_hasOwnStyle = TRUE;
 106     style = gtk_style_copy( gtk_widget_get_style( label ) );
 107   }
 108   else
 109   {
 110     style = gtk_widget_get_style( label );
 111   }
 112
 113   gdk_font_unref( style->font );
 114   style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );
 115
 116   gtk_widget_set_style( label, style );
 117 }