diff options
Diffstat (limited to 'mcs/class/System.Drawing/System.Drawing.Drawing2D/Matrix.cs')
| -rw-r--r-- | mcs/class/System.Drawing/System.Drawing.Drawing2D/Matrix.cs | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/mcs/class/System.Drawing/System.Drawing.Drawing2D/Matrix.cs b/mcs/class/System.Drawing/System.Drawing.Drawing2D/Matrix.cs new file mode 100644 index 00000000000..8a5694be928 --- /dev/null +++ b/mcs/class/System.Drawing/System.Drawing.Drawing2D/Matrix.cs @@ -0,0 +1,308 @@ +// +// System.Drawing.Drawing2D.Matrix.cs +// +// Authors: +// Stefan Maierhofer <sm@cg.tuwien.ac.at> +// Dennis Hayes (dennish@Raytek.com) +// Duncan Mak (duncan@ximian.com) +// Ravindra (rkumar@novell.com) +// +// (C) Ximian, Inc. http://www.ximian.com +// (C) Novell, Inc. http://www.novell.com +// + +// +// Copyright (C) 2004 Novell, Inc (http://www.novell.com) +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// + +using System; +using System.Drawing; +using System.Runtime.InteropServices; + +namespace System.Drawing.Drawing2D +{ + public sealed class Matrix : MarshalByRefObject, IDisposable + { + internal IntPtr nativeMatrix; + + // constructors + internal Matrix (IntPtr ptr) + { + nativeMatrix = ptr; + } + + public Matrix () + { + Status status = GDIPlus.GdipCreateMatrix (out nativeMatrix); + GDIPlus.CheckStatus (status); + } + + public Matrix (Rectangle rect , Point[] plgpts) + { + Status status = GDIPlus.GdipCreateMatrix3I (rect, plgpts, out nativeMatrix); + GDIPlus.CheckStatus (status); + } + + public Matrix (RectangleF rect , PointF[] pa) + { + Status status = GDIPlus.GdipCreateMatrix3 (rect, pa, out nativeMatrix); + GDIPlus.CheckStatus (status); + } + + public Matrix (float m11, float m12, float m21, float m22, float dx, float dy) + { + Status status = GDIPlus.GdipCreateMatrix2 (m11, m12, m21, m22, dx, dy, out nativeMatrix); + GDIPlus.CheckStatus (status); + } + + // properties + public float[] Elements { + get { + IntPtr tmp = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (float)) * 6); + float [] retval = new float [6]; + + Status status = GDIPlus.GdipGetMatrixElements (nativeMatrix, tmp); + GDIPlus.CheckStatus (status); + + Marshal.Copy (tmp, retval, 0, 6); + + Marshal.FreeHGlobal (tmp); + return retval; + } + } + + public bool IsIdentity { + get { + bool retval; + Status status = GDIPlus.GdipIsMatrixIdentity (nativeMatrix, out retval); + GDIPlus.CheckStatus (status); + return retval; + } + } + + public bool IsInvertible { + get { + bool retval; + Status status = GDIPlus.GdipIsMatrixInvertible (nativeMatrix, out retval); + GDIPlus.CheckStatus (status); + return retval; + } + } + + public float OffsetX { + get { + return this.Elements [4]; + } + } + + public float OffsetY { + get { + return this.Elements [5]; + } + } + + public Matrix Clone() + { + IntPtr retval; + Status status = GDIPlus.GdipCloneMatrix (nativeMatrix, out retval); + GDIPlus.CheckStatus (status); + return new Matrix (retval); + } + + + public void Dispose () + { + if (nativeMatrix != IntPtr.Zero) { + Status status = GDIPlus.GdipDeleteMatrix (nativeMatrix); + GDIPlus.CheckStatus (status); + nativeMatrix = IntPtr.Zero; + } + + GC.SuppressFinalize (this); + } + + public override bool Equals (object obj) + { + Matrix m = obj as Matrix; + + if (m != null) { + bool retval; + Status status = GDIPlus.GdipIsMatrixEqual (nativeMatrix, m.nativeMatrix, out retval); + GDIPlus.CheckStatus (status); + return retval; + + } else + return false; + } + + ~Matrix() + { + Dispose (); + } + + public override int GetHashCode () + { + return base.GetHashCode (); + } + + public void Invert () + { + Status status = GDIPlus.GdipInvertMatrix (nativeMatrix); + GDIPlus.CheckStatus (status); + } + + public void Multiply (Matrix matrix) + { + Multiply (matrix, MatrixOrder.Prepend); + } + + public void Multiply (Matrix matrix, MatrixOrder order) + { + Status status = GDIPlus.GdipMultiplyMatrix (nativeMatrix, matrix.nativeMatrix, order); + GDIPlus.CheckStatus (status); + } + + public void Reset() + { + Status status = GDIPlus.GdipSetMatrixElements (nativeMatrix, 1, 0, 0, 1, 0, 0); + GDIPlus.CheckStatus (status); + } + + public void Rotate (float angle) + { + Rotate (angle, MatrixOrder.Prepend); + } + + public void Rotate (float angle, MatrixOrder order) + { + Status status = GDIPlus.GdipRotateMatrix (nativeMatrix, angle, order); + GDIPlus.CheckStatus (status); + } + + public void RotateAt (float angle, PointF point) + { + RotateAt (angle, point, MatrixOrder.Prepend); + } + + public void RotateAt (float angle, PointF point, MatrixOrder order) + { + angle *= (float) (Math.PI / 180.0); // degrees to radians + float cos = (float) Math.Cos (angle); + float sin = (float) Math.Sin (angle); + float e4 = -point.X * cos + point.Y * sin + point.X; + float e5 = -point.X * sin - point.Y * cos + point.Y; + float[] m = this.Elements; + + Status status; + + if (order == MatrixOrder.Prepend) + status = GDIPlus.GdipSetMatrixElements (nativeMatrix, + cos * m[0] + sin * m[2], + cos * m[1] + sin * m[3], + -sin * m[0] + cos * m[2], + -sin * m[1] + cos * m[3], + e4 * m[0] + e5 * m[2] + m[4], + e4 * m[1] + e5 * m[3] + m[5]); + else + status = GDIPlus.GdipSetMatrixElements (nativeMatrix, + m[0] * cos + m[1] * -sin, + m[0] * sin + m[1] * cos, + m[2] * cos + m[3] * -sin, + m[2] * sin + m[3] * cos, + m[4] * cos + m[5] * -sin + e4, + m[4] * sin + m[5] * cos + e5); + GDIPlus.CheckStatus (status); + } + + public void Scale (float scaleX, float scaleY) + { + Scale (scaleX, scaleY, MatrixOrder.Prepend); + } + + public void Scale (float scaleX, float scaleY, MatrixOrder order) + { + Status status = GDIPlus.GdipScaleMatrix (nativeMatrix, scaleX, scaleY, order); + GDIPlus.CheckStatus (status); + } + + public void Shear (float shearX, float shearY) + { + Shear (shearX, shearY, MatrixOrder.Prepend); + } + + public void Shear (float shearX, float shearY, MatrixOrder order) + { + Status status = GDIPlus.GdipShearMatrix (nativeMatrix, shearX, shearY, order); + GDIPlus.CheckStatus (status); + } + + public void TransformPoints (Point[] pts) + { + Status status = GDIPlus.GdipTransformMatrixPointsI (nativeMatrix, pts, pts.Length); + GDIPlus.CheckStatus (status); + } + + public void TransformPoints (PointF[] pts) + { + Status status = GDIPlus.GdipTransformMatrixPoints (nativeMatrix, pts, pts.Length); + GDIPlus.CheckStatus (status); + } + + public void TransformVectors (Point[] pts) + { + Status status = GDIPlus.GdipVectorTransformMatrixPointsI (nativeMatrix, pts, pts.Length); + GDIPlus.CheckStatus (status); + } + + public void TransformVectors (PointF[] pts) + { + Status status = GDIPlus.GdipVectorTransformMatrixPoints (nativeMatrix, pts, pts.Length); + GDIPlus.CheckStatus (status); + } + + public void Translate (float offsetX, float offsetY) + { + Translate (offsetX, offsetY, MatrixOrder.Prepend); + } + + public void Translate (float offsetX, float offsetY, MatrixOrder order) + { + Status status = GDIPlus.GdipTranslateMatrix (nativeMatrix, offsetX, offsetY, order); + GDIPlus.CheckStatus (status); + } + + public void VectorTransformPoints (Point[] pts) + { + TransformVectors (pts); + } + + internal IntPtr NativeObject + { + get{ + return nativeMatrix; + } + set { + nativeMatrix = value; + } + } + } +} |