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Resolving Symbolic References in a CodeDOM (Part 7)

, 2 Dec 2012
Resolving symbolic references in a CodeDOM.
Nova.0.6.exe.zip
Mono.Cecil.dll
Nova.CLI.exe
Nova.CodeDOM.dll
Nova.Examples.exe
Nova.Studio.exe
Nova.Test.exe
Nova.UI.dll
Nova.0.6.zip
Nova.CLI
Properties
Nova.CodeDOM
CodeDOM
Annotations
Base
Comments
Base
DocComments
CodeRef
Base
List
Name
Base
Other
Simple
CompilerDirectives
Base
Conditionals
Base
Messages
Base
Pragmas
Base
Symbols
Base
Base
Interfaces
Expressions
AnonymousMethods
Base
Operators
Base
Binary
Arithmetic
Base
Assignment
Base
Bitwise
Base
Conditional
Relational
Base
Shift
Base
Other
Base
Unary
Base
Other
References
Base
GotoTargets
Base
Methods
Namespaces
Other
Properties
Types
Base
Variables
Base
Projects
Assemblies
Namespaces
References
Base
Statements
Base
Conditionals
Base
Exceptions
Generics
Constraints
Base
Iterators
Base
Jumps
Loops
Methods
OperatorDecls
Miscellaneous
Namespaces
Properties
Base
Events
Types
Base
Variables
Base
Parsing
Base
Properties
Rendering
Resolving
Utilities
Mono.Cecil
Reflection
Nova.Examples
Properties
Nova.Studio
Images
About.png
Configuration.png
EditCopy.png
EditCut.png
EditDelete.png
EditPaste.png
EditRedo.png
EditUndo.png
Error.png
Exit.png
FileNew.png
FileOpen.png
FileSave.png
FileSaveAll.png
FileSaveAs.png
Find.png
Help.png
Info.png
Logo.png
Options.png
Print.png
PrintPreview.png
Properties.png
Todo.png
Warning.png
Objects.ico
Properties
Settings.settings
Nova.Test
Properties
Nova.UI
CodeDOM
Annotations
Base
Comments
Base
DocComments
CodeRef
Base
List
Name
Base
Other
Simple
CompilerDirectives
Base
Conditionals
Base
Messages
Base
Pragmas
Base
Symbols
Base
Base
Expressions
AnonymousMethods
Base
Operators
Base
Binary
Arithmetic
Base
Assignment
Base
Bitwise
Base
Conditional
Relational
Base
Shift
Base
Other
Base
Unary
Base
Other
References
Base
GotoTargets
Base
Methods
Namespaces
Other
Properties
Types
Base
Variables
Base
Projects
Namespaces
References
Base
Statements
Base
Conditionals
Base
Exceptions
Generics
Constraints
Base
Iterators
Base
Jumps
Loops
Methods
OperatorDecls
Miscellaneous
Namespaces
Properties
Base
Events
Types
Base
Variables
Base
Properties
Resolving
Utilties
// 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;
using System.Collections.Generic;
using System.Reflection;
using System.Windows.Media;
using Mono.Cecil;

using Nova.CodeDOM;
using ParameterModifier = Nova.CodeDOM.ParameterModifier;

namespace Nova.UI
{
    /// <summary>
    /// The view model for a <see cref="CodeDOM.ParameterRef"/>.
    /// </summary>
    public class ParameterRefVM : VariableRefVM
    {
        #region /* STATICS */

        internal static void AddViewModelMapping()
        {
            CreateViewModel.Add(typeof(ParameterRef),
                delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new ParameterRefVM((ParameterRef)codeObject, dictionary); });
        }

        #endregion

        #region /* CONSTRUCTORS */

        /// <summary>
        /// Create a view model instance for the specified <see cref="CodeDOM.ParameterRef"/>.
        /// </summary>
        public ParameterRefVM(ParameterRef parameterRef, Dictionary<CodeObject, CodeObjectVM> dictionary)
            : base(parameterRef, dictionary)
        { }

        #endregion

        #region /* PROPERTIES */

        /// <summary>
        /// The underlying <see cref="CodeDOM.ParameterRef"/> model.
        /// </summary>
        public ParameterRef ParameterRef
        {
            get { return (ParameterRef)CodeObject; }
        }

        #endregion

        #region /* METHODS */

        #endregion

        #region /* RENDERING */

        protected override Brush RenderBrush(RenderFlags flags)
        {
            // This allows 'value' refs to be rendered as keywords
            if (ParameterRef.Reference is ParameterDecl)
                return ((ParameterDeclVM)CreateVM((ParameterDecl)ParameterRef.Reference)).RenderBrush();
            return IDENTIFIER_BRUSH;
        }

        public static void RenderParameterDefinition(CodeRenderer renderer, ParameterDefinition parameterDefinition, RenderFlags flags, CodeObjectVM tag)
        {
            RenderFlags passFlags = flags & ~RenderFlags.Description;
            bool hasBorder = flags.HasFlag(RenderFlags.ForceBorder);
            if (hasBorder)
                renderer.CreateBorder(VariableDeclVM.StaticBorderBrush, VariableDeclVM.StaticBackgroundBrush, tag);

            AttributeVM.RenderAttributes(renderer, parameterDefinition, tag);

            ParameterModifier modifier = ParameterRef.GetParameterModifier(parameterDefinition);
            if (modifier != ParameterModifier.None)
            {
                renderer.RenderText(ParameterDecl.ParameterModifierToString(modifier), KEYWORD_BRUSH, tag);
                renderer.RenderText(" ", PUNC_BRUSH, tag);
            }

            TypeReference parameterType = parameterDefinition.ParameterType;
            if (parameterType.IsByReference)
            {
                // Dereference (remove the trailing '&') if it's a reference type
                parameterType = ((ByReferenceType)parameterType).ElementType;
            }
            TypeRefBaseVM.RenderTypeReferenceAsTypeRefVM(renderer, parameterType, passFlags, tag);  // Render as TypeRefVM for nested tooltips
            renderer.RenderText(" ", PUNC_BRUSH, tag);
            renderer.RenderText(parameterDefinition.Name, IDENTIFIER_BRUSH, tag);

            // Display the default value if it has one
            if (parameterDefinition.HasDefault)
            {
                renderer.RenderText(" ", PUNC_BRUSH, tag);
                if (OperatorVM.UseAlternativeDisplay)
                    AssignmentVM.AltRenderOperator(renderer, OPERATOR_BRUSH, tag);
                else
                    AssignmentVM.RenderOperator(renderer, OPERATOR_BRUSH, tag);

                object defaultValue = parameterDefinition.Constant;
                Literal literal = new Literal(defaultValue);
                CreateVM(literal, tag).Render(renderer, flags | RenderFlags.ForceBorder | RenderFlags.PrefixSpace);
            }

            // If we have a border, return to the previous one
            if (hasBorder)
                renderer.ReturnToBorderParent(tag);
        }

        public static void RenderParameterInfo(CodeRenderer renderer, ParameterInfo parameterInfo, RenderFlags flags, CodeObjectVM tag)
        {
            RenderFlags passFlags = flags & ~RenderFlags.Description;
            bool hasBorder = flags.HasFlag(RenderFlags.ForceBorder);
            if (hasBorder)
                renderer.CreateBorder(VariableDeclVM.StaticBorderBrush, VariableDeclVM.StaticBackgroundBrush, tag);

            AttributeVM.RenderAttributes(renderer, parameterInfo, tag);

            ParameterModifier modifier = ParameterRef.GetParameterModifier(parameterInfo);
            if (modifier != ParameterModifier.None)
            {
                renderer.RenderText(ParameterDecl.ParameterModifierToString(modifier), KEYWORD_BRUSH, tag);
                renderer.RenderText(" ", PUNC_BRUSH, tag);
            }

            Type parameterType = parameterInfo.ParameterType;
            if (parameterType.IsByRef)
            {
                // Dereference (remove the trailing '&') if it's a reference type
                parameterType = parameterType.GetElementType();
            }
            TypeRefBaseVM.RenderTypeAsTypeRefVM(renderer, parameterType, passFlags, tag);  // Render as TypeRefVM for nested tooltips
            renderer.RenderText(" ", PUNC_BRUSH, tag);
            renderer.RenderText(parameterInfo.Name, IDENTIFIER_BRUSH, tag);

            // If we have a border, return to the previous one
            if (hasBorder)
                renderer.ReturnToBorderParent(tag);
        }

        #endregion
    }
}

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This article, along with any associated source code and files, is licensed under The Common Development and Distribution License (CDDL)

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About the Author

KenBeckett
Software Developer (Senior)
United States United States
I've been writing software since the late 70's, currently focusing mainly on C#.NET. I also like to travel around the world, and I own a Chocolate Factory (sadly, none of my employees are oompa loompas).

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