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     m_acceptsFocus = TRUE;
  61
  62     PreCreation( parent, id, pos, size, style, name );
  63
  64     SetValidator( validator );
  65
  66     m_widget = gtk_check_button_new_with_label( m_label );
  67
  68     m_blockFirstEvent = FALSE;
  69
  70     wxSize newSize = size;
  71     if (newSize.x == -1) newSize.x = 25+gdk_string_measure( m_widget->style->font, label );
  72     if (newSize.y == -1) newSize.y = 26;
  73     SetSize( newSize.x, newSize.y );
  74
  75     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  76       GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback), (gpointer*)this );
  77
  78     m_parent->AddChild( this );
  79
  80     (m_parent->m_insertCallback)( m_parent, this );
  81
  82     PostCreation();
  83
  84     gtk_widget_realize( GTK_BUTTON( m_widget )->child );
  85
  86     SetLabel( label );
  87
  88     SetBackgroundColour( parent->GetBackgroundColour() );
  89     SetForegroundColour( parent->GetForegroundColour() );
  90
  91     Show( TRUE );
  92
  93     return TRUE;
  94 }
  95
  96 void wxCheckBox::SetValue( bool state )
  97 {
  98     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
  99
 100     if ( state == GetValue() )
 101         return;
 102
 103     // for compatibility with wxMSW don't send notification when the check box
 104     // state is changed programmatically
 105     m_blockFirstEvent = TRUE;
 106
 107     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), state );
 108 }
 109
 110 bool wxCheckBox::GetValue() const
 111 {
 112     wxCHECK_MSG( m_widget != NULL, FALSE, "invalid checkbox" );
 113
 114     return GTK_TOGGLE_BUTTON(m_widget)->active;
 115 }
 116
 117 void wxCheckBox::SetLabel( const wxString& label )
 118 {
 119     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
 120
 121     wxControl::SetLabel( label );
 122
 123     gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel() );
 124 }
 125
 126 void wxCheckBox::Enable( bool enable )
 127 {
 128     wxCHECK_RET( m_widget != NULL, "invalid checkbox" );
 129
 130     wxControl::Enable( enable );
 131
 132     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 133 }
 134
 135 void wxCheckBox::ApplyWidgetStyle()
 136 {
 137     SetWidgetStyle();
 138     gtk_widget_set_style( m_widget, m_widgetStyle );
 139     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 140 }
 141
 142