/// <summary>
/// Creates a view for the specified extension point and GUI toolkit.
/// </summary>
/// <param name="extensionPoint">The view extension point.</param>
/// <param name="toolkitId">The identifier of the desired GUI toolkit.</param>
/// <returns>A new instance of a view extension for the specified extension point.</returns>
/// <exception cref="NotSupportedException">Thrown if a view extension matching the specified GUI toolkit does not exist.</exception>
public static IView CreateView(IExtensionPoint extensionPoint, string toolkitId)
{
// create an attribute representing the GUI toolkitID
GuiToolkitAttribute toolkitAttr = new GuiToolkitAttribute(toolkitId);
// create an extension that is tagged with the same toolkit
return((IView)extensionPoint.CreateExtension(new AttributeExtensionFilter(toolkitAttr)));
}
/// <summary>
/// Gets whether or not a view is available for the view extension point associated with specified model type and current GUI toolkit.
/// </summary>
/// <remarks>
/// The view is determined based on the view extension point that is associated with the specified
/// model type using the <see cref="AssociateViewAttribute"/> attribute.
/// </remarks>
/// <param name="modelType">The type of the model object.</param>
/// <returns>True if a matching, associated view extension is available; False otherwise.</returns>
/// <exception cref="ArgumentException">Thrown if the type <paramref name="modelType"/> does not have an associated view extension point (doesn't define <see cref="AssociateViewAttribute"/>).</exception>
/// <exception cref="InvalidOperationException">Thrown if the main application view has not been created yet.</exception>
public static bool IsAssociatedViewAvailable(Type modelType)
{
IExtensionPoint viewExtPoint = GetViewExtensionPoint(modelType);
// check if any extensions are available that match the GUI toolkit
GuiToolkitAttribute toolkitAttr = new GuiToolkitAttribute(Application.GuiToolkitID);
return(viewExtPoint.ListExtensions(new AttributeExtensionFilter(toolkitAttr)).Length > 0);
}