added main menus, improved shading

fgui/widget.cpp

@@ -25,6 +25,31 @@ void CFGUI_Widget::SetSize( uint32_t nX, uint32_t nY )
 
 void CFGUI_Widget::SetParent( CFGUI_Widget *pParent )
 {
-
+	m_pParent = pParent;
 }
 
+void CFGUI_Widget::ComputeOffset( void )
+{
+	CFGUI_Widget *pParent = m_pParent;
+	while (pParent)
+	{
+		IFGUI::AddOffset(pParent->m_iPosition[0], pParent->m_iPosition[1]);
+		pParent = pParent->m_pParent;
+	};
+}
+bool CFGUI_Widget::IsVisible( )
+{
+	CFGUI_Widget *pWidget = this;
+	while (pWidget)
+	{
+		if (!pWidget->m_bIsVisible)
+			return false;
+		pWidget = pWidget->m_pParent;
+	};
+	return true;
+};
+
+void CFGUI_Widget::SetVisibility( bool bValue )
+{
+	m_bIsVisible = bValue;
+}