public WidgetStyleCollection()
{
styles.Add(defaultKey, new WidgetStyle());
activeStyle = styles[defaultKey];
}
/// <summary>
/// Constructs a WidgetLayout structure.
/// </summary>
/// <param name="activeStyle"></param>
/// <remarks>
/// The dependency on WidgetStyle is something I'm calling a "perfect" dependency.
/// WidgetLayout needs a WidgetStyle object to function and avoid the null reference checks everywhere for situations which would be unrecoverable anyway if it was null.
/// WidgetLayout interacts with WidgetStyle in a completely read-only manner. Nothing is written to WidgetStyle.
/// WidgetLayout caches nothing from WidgetStyle.
/// The WidgetStyle can be switched to any other WidgetStyle at-will without any deterimental effect to the behavior of the WidgetLayout.
/// Because of these facts, we can freely change the style for a widget at will.
/// </remarks>
public WidgetRegion(WidgetStyle activeStyle)
{
this.Style = activeStyle;
}
