// The Nova Project by Ken Beckett.
// Copyright (C) 2007-2012 Inevitable Software, all rights reserved.
// Released under the Common Development and Distribution License, CDDL-1.0: http://opensource.org/licenses/cddl1.php
using System.Collections.Generic;
using System.Windows;
using System.Windows.Media;
using Nova.CodeDOM;
namespace Nova.UI
{
/// <summary>
/// The view model for a <see cref="CodeDOM.DelegateDecl"/>.
/// </summary>
public class DelegateDeclVM : TypeDeclVM
{
#region /* STATICS */
internal static void AddViewModelMapping()
{
CreateViewModel.Add(typeof(DelegateDecl),
delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new DelegateDeclVM((DelegateDecl)codeObject, isDescription, dictionary); });
}
#endregion
#region /* FIELDS */
protected ExpressionVM _returnTypeVM;
protected ChildListVM<ParameterDeclVM> _parameterVMs;
#endregion
#region /* CONSTRUCTORS */
/// <summary>
/// Create a view model instance for the specified <see cref="CodeDOM.DelegateDecl"/>.
/// </summary>
public DelegateDeclVM(DelegateDecl delegateDecl, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary)
: base(delegateDecl, isDescription, dictionary)
{
_returnTypeVM = (ExpressionVM)CreateVM(delegateDecl.ReturnType, isDescription, dictionary);
_parameterVMs = CreateListVM<ParameterDecl, ParameterDeclVM>(delegateDecl.Parameters, dictionary);
}
#endregion
#region /* PROPERTIES */
/// <summary>
/// The underlying <see cref="CodeDOM.DelegateDecl"/> model.
/// </summary>
public DelegateDecl DelegateDecl
{
get { return (DelegateDecl)CodeObject; }
}
/// <summary>
/// The return type of the delegate (never null - will be type 'void' instead).
/// </summary>
public ExpressionVM ReturnTypeVM
{
get { return (_returnTypeVM ?? (TypeRefVM)CreateVM(TypeRef.VoidRef)); }
}
/// <summary>
/// The list of <see cref="ParameterDeclVM"/>s.
/// </summary>
public ChildListVM<ParameterDeclVM> ParameterVMs
{
get { return _parameterVMs; }
}
/// <summary>
/// True if there are any parameters.
/// </summary>
public bool HasParameterVMs
{
get { return (_parameterVMs != null && _parameterVMs.Count > 0); }
}
/// <summary>
/// The number of parameters.
/// </summary>
public int ParameterVMCount
{
get { return (_parameterVMs != null ? _parameterVMs.Count : 0); }
}
#endregion
#region /* METHODS */
#endregion
#region /* RENDERING */
public static readonly Brush StaticBorderBrush = DarkLavender;
public static readonly Brush StaticBackgroundBrush = Brushes.Lavender;
public override Brush BorderBrush
{
get { return StaticBorderBrush; }
}
public override Brush BackgroundBrush
{
get { return StaticBackgroundBrush; }
}
protected override bool RenderParens()
{
return !MethodDeclBaseVM.HideMethodParens;
}
protected override void RenderStatement(CodeRenderer renderer, RenderFlags flags)
{
RenderFlags passFlags = (flags & RenderFlags.PassMask);
renderer.RenderText(DelegateDecl.ParseToken, KEYWORD_BRUSH, this);
_returnTypeVM.Render(renderer, passFlags | RenderFlags.IsPrefix | RenderFlags.PrefixSpace);
base.RenderArgument(renderer, flags);
}
protected override void RenderArgumentPrefix(CodeRenderer renderer, RenderFlags flags)
{
if (MethodDeclBaseVM.HideMethodParens && ((_parameterVMs != null && _parameterVMs.Count > 0) || DelegateDecl.HasInfixComments))
base.RenderArgumentPrefix(renderer, flags);
}
protected override void RenderArgument(CodeRenderer renderer, RenderFlags flags)
{
RenderFlags passFlags = (flags & RenderFlags.PassMask);
RenderInfixComments(renderer, 0, flags);
renderer.RenderList(_parameterVMs, passFlags, this);
if (DelegateDecl.IsEndFirstOnLine)
renderer.NewLine();
}
public override void UnRender()
{
_returnTypeVM.UnRender();
ChildListHelpers.UnRender(_parameterVMs);
base.UnRender();
}
/// <summary>
/// Get the <see cref="FrameworkElement"/> to be highlighted when the object is selected.
/// </summary>
public override FrameworkElement GetSelectionElement()
{
return FrameworkElement;
}
#endregion
}
}