// 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.ArgumentsOperator"/>.
/// </summary>
public abstract class ArgumentsOperatorVM : OperatorVM
{
#region /* FIELDS */
protected ExpressionVM _expressionVM;
protected ChildListVM<ExpressionVM> _argumentVMs;
#endregion
#region /* CONSTRUCTORS */
/// <summary>
/// Create a view model instance for the specified <see cref="CodeDOM.ArgumentsOperator"/>.
/// </summary>
protected ArgumentsOperatorVM(ArgumentsOperator argumentsOperator, Dictionary<CodeObject, CodeObjectVM> dictionary)
: base(argumentsOperator, dictionary)
{
_expressionVM = (ExpressionVM)CreateVM(argumentsOperator.Expression, false, dictionary);
_argumentVMs = CreateListVM<Expression, ExpressionVM>(argumentsOperator.Arguments, dictionary);
}
#endregion
#region /* PROPERTIES */
/// <summary>
/// The underlying <see cref="CodeDOM.ArgumentsOperator"/> model.
/// </summary>
public ArgumentsOperator ArgumentsOperator
{
get { return (ArgumentsOperator)CodeObject; }
}
/// <summary>
/// The <see cref="ExpressionVM"/> being invoked.
/// </summary>
public virtual new ExpressionVM Expression
{
get { return _expressionVM; }
}
/// <summary>
/// The argument expressions.
/// </summary>
public ChildListVM<ExpressionVM> Arguments
{
get { return _argumentVMs; }
}
/// <summary>
/// True if there are any arguments.
/// </summary>
public bool HasArguments
{
get { return (_argumentVMs != null && _argumentVMs.Count > 0); }
}
/// <summary>
/// The number of arguments.
/// </summary>
public int ArgumentCount
{
get { return (_argumentVMs != null ? _argumentVMs.Count : 0); }
}
#endregion
#region /* METHODS */
#endregion
#region /* RENDERING */
protected abstract void RenderName(CodeRenderer renderer, RenderFlags flags);
protected override Brush RenderBrush(RenderFlags flags)
{
return PUNC_BRUSH;
}
public override void RenderExpression(CodeRenderer renderer, RenderFlags flags)
{
RenderFlags passFlags = (flags & RenderFlags.PassMask);
bool attributeCall = flags.HasFlag(RenderFlags.Attribute);
RenderName(renderer, passFlags | (flags & RenderFlags.Attribute)); // Special case - allow the Attribute flag to pass
if ((_argumentVMs != null && _argumentVMs.Count > 0) || (!flags.HasFlag(RenderFlags.NoParensIfEmpty) && !attributeCall) || ArgumentsOperator.HasInfixComments)
{
Brush brush = RenderBrush(flags);
RenderStartArguments(renderer, brush, flags);
RenderInfixComments(renderer, 0, flags);
renderer.RenderList(_argumentVMs, passFlags | RenderFlags.ForceBorder, this);
RenderEndArguments(renderer, brush, flags);
}
RenderInitializer(renderer, passFlags);
}
protected abstract void RenderStartArguments(CodeRenderer renderer, Brush brush, RenderFlags flags);
protected abstract void RenderEndArguments(CodeRenderer renderer, Brush brush, RenderFlags flags);
protected virtual void RenderInitializer(CodeRenderer renderer, RenderFlags flags)
{ }
public override void RenderVisible(CodeRenderer renderer, RenderFlags flags)
{
base.RenderVisible(renderer, flags);
if (_expressionVM != null)
_expressionVM.RenderVisible(renderer, flags);
renderer.RenderVisibleList(_argumentVMs, flags);
}
public override void UnRender()
{
if (_expressionVM != null)
_expressionVM.UnRender();
ChildListHelpers.UnRender(_argumentVMs);
base.UnRender();
}
#endregion
}
}