Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / TranslateTransform.cs / 1305600 / TranslateTransform.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2001 // // File: TranslateTransform.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.Security; 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 { #region TranslateTransform ////// Create a translation transformation. /// public sealed partial class TranslateTransform : Transform { ////// /// public TranslateTransform() { } ////// Create a translation transformation. /// ///Displacement amount in x direction. ///Displacement amount in y direction. public TranslateTransform( double offsetX, double offsetY ) { X = offsetX; Y = offsetY; } ////// Return the current transformation value. /// public override Matrix Value { get { ReadPreamble(); Matrix matrix = Matrix.Identity; matrix.Translate(X, Y); return matrix; } } ////// Returns true if transformation matches the identity transform. /// internal override bool IsIdentity { get { return X == 0 && Y == 0 && CanFreeze; } } #region Internal Methods internal override void TransformRect(ref Rect rect) { if (!rect.IsEmpty) { rect.Offset(X, Y); } } ////// MultiplyValueByMatrix - result is set equal to "this" * matrixToMultiplyBy. /// /// The result is stored here. /// The multiplicand. internal override void MultiplyValueByMatrix(ref Matrix result, ref Matrix matrixToMultiplyBy) { result = Matrix.Identity; // Set the translate + type result._offsetX = X; result._offsetY = Y; result._type = MatrixTypes.TRANSFORM_IS_TRANSLATION; MatrixUtil.MultiplyMatrix(ref result, ref matrixToMultiplyBy); } #endregion Internal Methods } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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