// 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.Media;
using Nova.CodeDOM;
namespace Nova.UI
{
/// <summary>
/// The view model for a <see cref="CodeDOM.Goto"/>.
/// </summary>
public class GotoVM : StatementVM
{
#region /* STATICS */
internal static void AddViewModelMapping()
{
CreateViewModel.Add(typeof(Goto),
delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new GotoVM((Goto)codeObject, dictionary); });
}
#endregion
#region /* FIELDS */
protected SymbolicRefVM _targetVM;
protected ExpressionVM _constantExpressionVM;
#endregion
#region /* CONSTRUCTORS */
/// <summary>
/// Create a view model instance for the specified <see cref="CodeDOM.Goto"/>.
/// </summary>
public GotoVM(Goto @goto, Dictionary<CodeObject, CodeObjectVM> dictionary)
: base(@goto, dictionary)
{
_targetVM = (SymbolicRefVM)CreateVM(@goto.Target, false, dictionary);
_constantExpressionVM = (ExpressionVM)CreateVM(@goto.ConstantExpression, false, dictionary);
}
#endregion
#region /* PROPERTIES */
/// <summary>
/// The underlying <see cref="CodeDOM.Goto"/> model.
/// </summary>
public Goto Goto
{
get { return (Goto)CodeObject; }
}
/// <summary>
/// The target <see cref="GotoTargetRef"/> (<see cref="LabelRef"/> or <see cref="SwitchItemRef"/>) or <see cref="UnresolvedRef"/>.
/// </summary>
public SymbolicRefVM Target
{
get { return _targetVM; }
}
/// <summary>
/// The constant expression if this is a "goto case ...", otherwise null.
/// </summary>
public ExpressionVM ConstantExpression
{
get { return _constantExpressionVM; }
}
#endregion
#region /* METHODS */
#endregion
#region /* RENDERING */
public override Brush BorderBrush
{
get { return DarkPink; }
}
public override Brush BackgroundBrush
{
get { return Brushes.Pink; }
}
protected override void RenderArgument(CodeRenderer renderer, RenderFlags flags)
{
// If we have a constant expression ("goto case ..."), always render it instead of
// the target reference.
if (_constantExpressionVM != null)
{
renderer.RenderText(Case.ParseToken + " ", _targetVM.GetMessageBrush(KEYWORD_BRUSH, flags), this);
_constantExpressionVM.Render(renderer, flags);
}
else
_targetVM.Render(renderer, flags);
}
public override void UnRender()
{
if (_constantExpressionVM != null)
_constantExpressionVM.UnRender();
else
_targetVM.UnRender();
base.UnRender();
}
public override void RenderToolTip(CodeRenderer renderer, RenderFlags flags)
{
base.RenderToolTip(renderer, flags);
// If we have a "goto case ...", show the hidden target reference in addition to the constant expression
if (_constantExpressionVM != null && _targetVM != null)
{
renderer.NewLine();
CreateVM(Goto.Target).RenderToolTip(renderer, RenderFlags.SuppressLineCol);
}
}
#endregion
}
}