// 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.Conditional"/>.
/// </summary>
public class ConditionalVM : OperatorVM
{
#region /* STATICS */
internal static void AddViewModelMapping()
{
CreateViewModel.Add(typeof(Conditional),
delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new ConditionalVM((Conditional)codeObject, dictionary); });
}
#endregion
#region /* FIELDS */
protected ExpressionVM _ifVM;
protected ExpressionVM _thenVM;
protected ExpressionVM _elseVM;
#endregion
#region /* CONSTRUCTORS */
/// <summary>
/// Create a view model instance for the specified <see cref="CodeDOM.Conditional"/>.
/// </summary>
public ConditionalVM(Conditional conditional, Dictionary<CodeObject, CodeObjectVM> dictionary)
: base(conditional, dictionary)
{
_ifVM = (ExpressionVM)CreateVM(conditional.If, false, dictionary);
_thenVM = (ExpressionVM)CreateVM(conditional.Then, false, dictionary);
_elseVM = (ExpressionVM)CreateVM(conditional.Else, false, dictionary);
}
#endregion
#region /* PROPERTIES */
/// <summary>
/// The underlying <see cref="CodeDOM.Conditional"/> model.
/// </summary>
public Conditional Conditional
{
get { return (Conditional)CodeObject; }
}
/// <summary>
/// The 'if' expression.
/// </summary>
public ExpressionVM If
{
get { return _ifVM; }
}
/// <summary>
/// The 'then' expression.
/// </summary>
public ExpressionVM Then
{
get { return _thenVM; }
}
/// <summary>
/// The 'else' expression.
/// </summary>
public ExpressionVM Else
{
get { return _elseVM; }
}
#endregion
#region /* METHODS */
#endregion
#region /* RENDERING */
public override Brush BorderBrush
{
get { return Brushes.PaleTurquoise; }
}
public override Brush BackgroundBrush
{
get { return Brushes.LightCyan; }
}
public override void Render(CodeRenderer renderer, RenderFlags flags)
{
base.Render(renderer, flags | RenderFlags.ForceBorder);
}
public override void RenderExpression(CodeRenderer renderer, RenderFlags flags)
{
flags |= RenderFlags.ForceBorder;
if (_ifVM != null)
_ifVM.Render(renderer, flags);
RenderFlags thenFlags = flags;
if (_thenVM != null && _thenVM.IsFirstOnLine)
{
renderer.NewLine();
thenFlags |= RenderFlags.SuppressNewLine;
renderer.RenderText("? ", PUNC_BRUSH, this);
}
else
renderer.RenderText(" ? ", PUNC_BRUSH, this);
if (_thenVM != null)
_thenVM.Render(renderer, thenFlags);
if (_elseVM != null && _elseVM.IsFirstOnLine)
{
renderer.NewLine();
flags |= RenderFlags.SuppressNewLine;
renderer.RenderText(": ", PUNC_BRUSH, this);
}
else
renderer.RenderText(" : ", PUNC_BRUSH, this);
if (_elseVM != null)
_elseVM.Render(renderer, flags);
}
public override void RenderVisible(CodeRenderer renderer, RenderFlags flags)
{
base.RenderVisible(renderer, flags);
if (_ifVM != null)
_ifVM.RenderVisible(renderer, flags);
if (_thenVM != null)
_thenVM.RenderVisible(renderer, flags);
if (_elseVM != null)
_elseVM.RenderVisible(renderer, flags);
}
public override void UnRender()
{
if (_ifVM != null)
_ifVM.UnRender();
if (_thenVM != null)
_thenVM.UnRender();
if (_elseVM != null)
_elseVM.UnRender();
base.UnRender();
}
#endregion
}
}