SkewTransform.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / SkewTransform.cs / 1305600 / SkewTransform.cs
                        

                        
                            //------------------------------------------------------------------------------ 
//  Microsoft Avalon
//  Copyright (c) Microsoft Corporation, 2001
//
//  File:       SkewTransform.cs 
//-----------------------------------------------------------------------------
 
using MS.Internal; 
using MS.Internal.PresentationCore;
using System; 
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Diagnostics; 
using System.Globalization;
using System.Reflection; 
using System.Runtime.InteropServices; 
using System.Text;
using System.Windows; 
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
 
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID; 
 
namespace System.Windows.Media
{ 
    ///
    /// Create a skew X transformation.
    ///
    public sealed partial class SkewTransform : Transform 
    {
        /// 
        /// 
        ///
        public SkewTransform() 
        {
        }

        /// 
        ///
        /// 
        public SkewTransform(double angleX, double angleY) 
        {
            AngleX = angleX; 
            AngleY = angleY;
        }

        /// 
        ///
        /// 
        public SkewTransform(double angleX, double angleY, double centerX, double centerY) : this(angleX, angleY) 
        {
            CenterX = centerX; 
            CenterY = centerY;
        }

        /// 
        /// Return the current transformation value.
        /// 
        public override Matrix Value 
        {
            get 
            {
                ReadPreamble();

                Matrix matrix = new Matrix(); 

                double angleX = AngleX; 
                double angleY = AngleY; 
                double centerX = CenterX;
                double centerY = CenterY; 

                bool hasCenter = centerX != 0 || centerY != 0;

                if (hasCenter) 
                {
                    matrix.Translate(-centerX, -centerY); 
                } 

                matrix.Skew(angleX, angleY); 

                if (hasCenter)
                {
                    matrix.Translate(centerX, centerY); 
                }
 
                return matrix; 
            }
        } 

        ///
        /// Returns true if transformation matches the identity transform.
        /// 
        internal override bool IsIdentity
        { 
            get 
            {
                return AngleX == 0 && AngleY == 0 && CanFreeze; 
            }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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