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 #include "gdk/gdk.h"
  18 #include "gtk/gtk.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // data
  22 //-----------------------------------------------------------------------------
  23
  24 extern bool   g_blockEventsOnDrag;
  25
  26 //-----------------------------------------------------------------------------
  27 // "clicked"
  28 //-----------------------------------------------------------------------------
  29
  30 static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
  31 {
  32     if (!cb->HasVMT()) return;
  33
  34     if (cb->m_blockFirstEvent)
  35     {
  36         cb->m_blockFirstEvent = FALSE;
  37         return;
  38     }
  39
  40     if (g_blockEventsOnDrag) return;
  41
  42     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  43     event.SetInt( cb->GetValue() );
  44     event.SetEventObject(cb);
  45     cb->GetEventHandler()->ProcessEvent(event);
  46 }
  47
  48 //-----------------------------------------------------------------------------
  49 // wxCheckBox
  50 //-----------------------------------------------------------------------------
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  53
  54 wxCheckBox::wxCheckBox(void)
  55 {
  56 }
  57
  58 bool wxCheckBox::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  59       const wxPoint &pos, const wxSize &size,
  60       long style, const wxValidator& validator, const wxString &name )
  61 {
  62     m_needParent = TRUE;
  63     m_acceptsFocus = TRUE;
  64
  65     PreCreation( parent, id, pos, size, style, name );
  66
  67     SetValidator( validator );
  68
  69     m_widget = gtk_check_button_new_with_label( m_label );
  70
  71     m_blockFirstEvent = FALSE;
  72
  73     wxSize newSize = size;
  74     if (newSize.x == -1) newSize.x = 25+gdk_string_measure( m_widget->style->font, label );
  75     if (newSize.y == -1) newSize.y = 26;
  76     SetSize( newSize.x, newSize.y );
  77
  78     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  79       GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback), (gpointer*)this );
  80
  81     m_parent->AddChild( this );
  82
  83     (m_parent->m_insertCallback)( m_parent, this );
  84
  85     PostCreation();
  86
  87     gtk_widget_realize( GTK_BUTTON( m_widget )->child );
  88
  89     SetLabel( label );
  90
  91     SetBackgroundColour( parent->GetBackgroundColour() );
  92     SetForegroundColour( parent->GetForegroundColour() );
  93     SetFont( parent->GetFont() );
  94
  95     Show( TRUE );
  96
  97     return TRUE;
  98 }
  99
 100 void wxCheckBox::SetValue( bool state )
 101 {
 102     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
 103
 104     if ( state == GetValue() )
 105         return;
 106
 107     // for compatibility with wxMSW don't send notification when the check box
 108     // state is changed programmatically
 109     m_blockFirstEvent = TRUE;
 110
 111     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), state );
 112 }
 113
 114 bool wxCheckBox::GetValue() const
 115 {
 116     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid checkbox" );
 117
 118     return GTK_TOGGLE_BUTTON(m_widget)->active;
 119 }
 120
 121 void wxCheckBox::SetLabel( const wxString& label )
 122 {
 123     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
 124
 125     wxControl::SetLabel( label );
 126
 127     gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel() );
 128 }
 129
 130 void wxCheckBox::Enable( bool enable )
 131 {
 132     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
 133
 134     wxControl::Enable( enable );
 135
 136     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 137 }
 138
 139 void wxCheckBox::ApplyWidgetStyle()
 140 {
 141     SetWidgetStyle();
 142     gtk_widget_set_style( m_widget, m_widgetStyle );
 143     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 144 }
 145
 146