/// <summary>
/// Creates a new instance of the <see cref="ImGuiView"/> class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="uiPanel">The <see cref="UIPanel"/> that is creating the view.</param>
/// <param name="uiPanelDefinition">The <see cref="UIPanelDefinition"/> that defines the view's containing panel.</param>
/// <param name="vmfactory">A view model factory which is used to create the view's initial view model, or <see langword="null"/> to skip view model creation.</param>
/// <returns>The <see cref="ImGuiView"/> that was created.</returns>
public static ImGuiView Create(UltravioletContext uv, UIPanel uiPanel, UIPanelDefinition uiPanelDefinition, UIViewModelFactory vmfactory)
{
Contract.Require(uv, nameof(uv));
Contract.Require(uiPanel, nameof(uiPanel));
Contract.Require(uiPanelDefinition, nameof(uiPanelDefinition));
var viewElement = uiPanelDefinition.ViewElement;
if (viewElement == null)
{
return(null);
}
var viewModelType = default(Type);
var viewModelTypeName = (String)viewElement.Attribute("ViewModelType");
if (viewModelTypeName != null)
{
viewModelType = Type.GetType(viewModelTypeName, false) ??
throw new InvalidOperationException(ImGuiStrings.ViewModelTypeNotFound.Format(viewModelTypeName));
}
return(new ImGuiView(uv, uiPanel, viewModelType));
}
/// <summary>
/// Loads an instance of the <see cref="PresentationFoundationView"/> from an XML node.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="uiPanel">The <see cref="UIPanel"/> that is creating the panel.</param>
/// <param name="uiPanelDefinition">The <see cref="UIPanelDefinition"/> that defines the view.</param>
/// <param name="vmfactory">A view model factory which is used to create the view's initial view model, or <see langword="null"/> to skip view model creation.</param>
/// <returns>The <see cref="PresentationFoundationView"/> that was loaded from the specified XML element.</returns>
public static PresentationFoundationView Load(UltravioletContext uv, UIPanel uiPanel, UIPanelDefinition uiPanelDefinition, UIViewModelFactory vmfactory)
{
Contract.Require(uv, nameof(uv));
Contract.Require(uiPanel, nameof(uiPanel));
Contract.Require(uiPanelDefinition, nameof(uiPanelDefinition));
var viewElement = uiPanelDefinition.ViewElement;
if (viewElement == null)
return null;
// Determine which culture to use when parsing values.
var cultureRequested = (String)uiPanelDefinition.RootElement.Attribute("Culture");
var cultureInfo = CultureInfo.GetCultureInfo(cultureRequested ?? String.Empty);
// Determine the type of view model used by this view.
var viewModelType = default(Type);
var viewModelTypeName = (String)viewElement.Attribute("ViewModelType");
if (viewModelTypeName != null)
{
viewModelType = Type.GetType(viewModelTypeName, false);
if (viewModelType == null)
throw new UvmlException(PresentationStrings.ViewModelTypeNotFound.Format(viewModelTypeName));
var viewModelWrapperAttr = viewModelType.GetCustomAttributes(typeof(ViewModelWrapperAttribute), false)
.Cast<ViewModelWrapperAttribute>().SingleOrDefault();
if (viewModelWrapperAttr != null)
{
viewModelType = viewModelWrapperAttr.WrapperType;
}
else
{
var viewModelWrapperName = PresentationFoundationView.GetDataSourceWrapperNameForView(uiPanelDefinition.AssetFilePath);
var viewModelWrapperType = uv.GetUI().GetPresentationFoundation().GetDataSourceWrapperTypeByName(viewModelWrapperName);
if (viewModelWrapperType == null)
throw new UvmlException(PresentationStrings.CannotFindViewModelWrapper.Format(viewModelWrapperName));
viewModelType = viewModelWrapperType;
}
}
// Create a UVML template which will instantiate the view.
AddUvmlAnnotations(viewModelType.Name, viewElement);
var viewTemplate = new UvmlTemplate(viewElement, typeof(PresentationFoundationView), (puv, pname) =>
{
var view = new PresentationFoundationView(puv, uiPanel, viewModelType);
var viewModel = vmfactory == null ? null : vmfactory(view);
if (viewModel != null)
{
view.SetViewModel(viewModel);
}
var root = view.LayoutRoot;
root.BeginInit();
var rootAdornerDecorator = new AdornerDecorator(puv, null);
rootAdornerDecorator.BeginInit();
root.Child = rootAdornerDecorator;
var rootGridTemplate = CreateTemplateFromXml(puv, viewElement, null, typeof(Grid), cultureInfo);
var rootGridContext = UvmlInstantiationContext.ForView(puv, view);
var rootGridTemplateInstance = (UvmlTemplateInstance)rootGridTemplate.Instantiate(puv, rootGridContext);
var rootGrid = (Grid)rootGridTemplateInstance.Finalize();
rootAdornerDecorator.Child = rootGrid;
return view;
});
// Instantiate the view template.
var viewTemplateInstance = (UvmlTemplateInstance)viewTemplate.Instantiate(uv, null);
var viewInstance = (PresentationFoundationView)viewTemplateInstance.Finalize();
var viewRoot = viewInstance.LayoutRoot;
var viewRootAdornerDecorator = (AdornerDecorator)viewRoot.Child;
viewRootAdornerDecorator.EndInit();
viewRoot.EndInit();
viewRoot.CacheLayoutParameters();
var viewInstanceViewModel = viewInstance.ViewModel;
if (viewInstanceViewModel != null)
viewInstance.Namescope.PopulateFieldsFromRegisteredElements(viewInstanceViewModel);
return viewInstance;
}
/// <summary>
/// Loads an instance of the <see cref="PresentationFoundationView"/> from an XML node.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="uiPanel">The <see cref="UIPanel"/> that is creating the panel.</param>
/// <param name="uiPanelDefinition">The <see cref="UIPanelDefinition"/> that defines the view.</param>
/// <param name="vmfactory">A view model factory which is used to create the view's initial view model, or <see langword="null"/> to skip view model creation.</param>
/// <returns>The <see cref="PresentationFoundationView"/> that was loaded from the specified XML element.</returns>
public static PresentationFoundationView Load(UltravioletContext uv, UIPanel uiPanel, UIPanelDefinition uiPanelDefinition, UIViewModelFactory vmfactory)
{
Contract.Require(uv, nameof(uv));
Contract.Require(uiPanel, nameof(uiPanel));
Contract.Require(uiPanelDefinition, nameof(uiPanelDefinition));
var viewElement = uiPanelDefinition.ViewElement;
if (viewElement == null)
{
return(null);
}
// Determine which culture to use when parsing values.
var cultureRequested = (String)uiPanelDefinition.RootElement.Attribute("Culture");
var cultureInfo = CultureInfo.GetCultureInfo(cultureRequested ?? String.Empty);
// Determine the type of view model used by this view.
var viewModelType = default(Type);
var viewModelTypeName = (String)viewElement.Attribute("ViewModelType");
if (viewModelTypeName != null)
{
viewModelType = Type.GetType(viewModelTypeName, false);
if (viewModelType == null)
{
throw new UvmlException(PresentationStrings.ViewModelTypeNotFound.Format(viewModelTypeName));
}
var viewModelWrapperAttr = viewModelType.GetCustomAttributes(typeof(ViewModelWrapperAttribute), false)
.Cast <ViewModelWrapperAttribute>().SingleOrDefault();
if (viewModelWrapperAttr != null)
{
viewModelType = viewModelWrapperAttr.WrapperType;
}
else
{
var viewModelWrapperName = PresentationFoundationView.GetDataSourceWrapperNameForView(uiPanelDefinition.AssetFilePath);
var viewModelWrapperType = uv.GetUI().GetPresentationFoundation().GetDataSourceWrapperTypeByName(viewModelWrapperName);
if (viewModelWrapperType == null)
{
throw new UvmlException(PresentationStrings.CannotFindViewModelWrapper.Format(viewModelWrapperName));
}
viewModelType = viewModelWrapperType;
}
}
// Create a UVML template which will instantiate the view.
var viewTemplate = new UvmlTemplate(viewElement, typeof(PresentationFoundationView), (puv, pname) =>
{
var view = new PresentationFoundationView(puv, uiPanel, viewModelType);
var viewModel = vmfactory == null ? null : vmfactory(view);
if (viewModel != null)
{
view.SetViewModel(viewModel);
}
var root = view.LayoutRoot;
root.BeginInit();
var rootAdornerDecorator = new AdornerDecorator(puv, null);
rootAdornerDecorator.BeginInit();
root.Child = rootAdornerDecorator;
var rootGridTemplate = CreateTemplateFromXml(puv, viewElement, null, typeof(Grid), cultureInfo);
var rootGridContext = UvmlInstantiationContext.ForView(puv, view);
var rootGridTemplateInstance = (UvmlTemplateInstance)rootGridTemplate.Instantiate(puv, rootGridContext);
var rootGrid = (Grid)rootGridTemplateInstance.Finalize();
rootAdornerDecorator.Child = rootGrid;
return(view);
});
// Instantiate the view template.
var viewTemplateInstance = (UvmlTemplateInstance)viewTemplate.Instantiate(uv, null);
var viewInstance = (PresentationFoundationView)viewTemplateInstance.Finalize();
var viewRoot = viewInstance.LayoutRoot;
var viewRootAdornerDecorator = (AdornerDecorator)viewRoot.Child;
viewRootAdornerDecorator.EndInit();
viewRoot.EndInit();
viewRoot.CacheLayoutParameters();
var viewInstanceViewModel = viewInstance.ViewModel;
if (viewInstanceViewModel != null)
{
viewInstance.Namescope.PopulateFieldsFromRegisteredElements(viewInstanceViewModel);
}
return(viewInstance);
}