// 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.Input;
using System.Windows.Media;
using Nova.CodeDOM;
namespace Nova.UI
{
/// <summary>
/// The view model for a <see cref="CodeDOM.NewObject"/>.
/// </summary>
public class NewObjectVM : NewOperatorVM
{
#region /* STATICS */
internal static void AddViewModelMapping()
{
CreateViewModel.Add(typeof(NewObject),
delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new NewObjectVM((NewObject)codeObject, dictionary); });
}
#endregion
#region /* FIELDS */
protected SymbolicRefVM _constructorRefVM;
#endregion
#region /* CONSTRUCTORS */
/// <summary>
/// Create a view model instance for the specified <see cref="CodeDOM.NewObject"/>.
/// </summary>
public NewObjectVM(NewObject newObject, Dictionary<CodeObject, CodeObjectVM> dictionary)
: base(newObject, dictionary)
{
_constructorRefVM = (SymbolicRefVM)CreateVM(newObject.HiddenRef, false, dictionary);
}
#endregion
#region /* PROPERTIES */
/// <summary>
/// The underlying <see cref="CodeDOM.NewObject"/> model.
/// </summary>
public NewObject NewObject
{
get { return (NewObject)CodeObject; }
}
#endregion
#region /* METHODS */
#endregion
#region /* RENDERING */
/// <summary>
/// Determines if empty parens should be hidden.
/// </summary>
public static bool HideEmptyParens;
protected override void RenderName(CodeRenderer renderer, RenderFlags flags)
{
renderer.RenderText(NewOperator.ParseToken, _constructorRefVM != null ? _constructorRefVM.GetMessageBrush(KEYWORD_BRUSH, flags) : KEYWORD_BRUSH, this);
if (_expressionVM != null)
_expressionVM.Render(renderer, flags | RenderFlags.PrefixSpace);
}
public override void RenderExpression(CodeRenderer renderer, RenderFlags flags)
{
// Suppress empty parens *if* we have an initializer.
// Also suppress them if the special option is on and the parent isn't a Dot.
base.RenderExpression(renderer, flags | (_initializerVM != null || (HideEmptyParens && !(ParentVM is DotVM)) ? RenderFlags.NoParensIfEmpty : 0));
}
protected override void RenderStartArguments(CodeRenderer renderer, Brush brush, RenderFlags flags)
{
renderer.RenderText(NewObject.ParseTokenStart, brush, this);
}
protected override void RenderEndArguments(CodeRenderer renderer, Brush brush, RenderFlags flags)
{
if (NewObject.IsEndFirstOnLine)
renderer.NewLine();
renderer.RenderText(NewObject.ParseTokenEnd, brush, this);
}
public override void UnRender()
{
if (_constructorRefVM != null)
_constructorRefVM.UnRender();
base.UnRender();
}
public override void RenderToolTip(CodeRenderer renderer, RenderFlags flags)
{
base.RenderToolTip(renderer, flags);
if (_constructorRefVM != null)
{
renderer.NewLine();
CreateVM(NewObject.HiddenRef).RenderToolTip(renderer, RenderFlags.SuppressLineCol);
}
}
#endregion
#region /* COMMANDS */
public static readonly RoutedCommand HideEmptyParensCommand = new RoutedCommand("Hide Empty Parens on 'new Type()'", typeof(NewObjectVM));
public static new void BindCommands(Window window)
{
WPFUtil.AddCommandBinding(window, HideEmptyParensCommand, hideEmptyParens_Executed);
}
private static void hideEmptyParens_Executed(object sender, ExecutedRoutedEventArgs e)
{
HideEmptyParens = !HideEmptyParens;
CodeRenderer.ReRenderAll();
}
#endregion
}
}