421 lines
11 KiB
C#
421 lines
11 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2007 Novell, Inc. (http://www.novell.com)
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//
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// Authors:
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// Chris Toshok (toshok@ximian.com)
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//
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using System;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Media;
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using NUnit.Framework;
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namespace MonoTests.System.Windows.Media {
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[TestFixture]
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public class MatrixTest {
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const double DELTA = 0.000000001d;
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void CheckMatrix (Matrix expected, Matrix actual)
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{
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Assert.AreEqual (expected.M11, actual.M11, DELTA);
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Assert.AreEqual (expected.M12, actual.M12, DELTA);
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Assert.AreEqual (expected.M21, actual.M21, DELTA);
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Assert.AreEqual (expected.M22, actual.M22, DELTA);
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Assert.AreEqual (expected.OffsetX, actual.OffsetX, DELTA);
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Assert.AreEqual (expected.OffsetY, actual.OffsetY, DELTA);
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}
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[Test]
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public void TestAccessors ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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Assert.AreEqual (1, m.M11);
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Assert.AreEqual (2, m.M12);
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Assert.AreEqual (3, m.M21);
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Assert.AreEqual (4, m.M22);
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Assert.AreEqual (5, m.OffsetX);
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Assert.AreEqual (6, m.OffsetY);
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}
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[Test]
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public void Append ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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m.Append (m);
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CheckMatrix (new Matrix (7, 10, 15, 22, 28, 40), m);
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}
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[Test]
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public void Equals ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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Assert.IsTrue (m.Equals (new Matrix (1, 2, 3, 4, 5, 6)));
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Assert.IsFalse (m.Equals (new Matrix (0, 2, 3, 4, 5, 6)));
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Assert.IsFalse (m.Equals (new Matrix (1, 0, 3, 4, 5, 6)));
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Assert.IsFalse (m.Equals (new Matrix (1, 2, 0, 4, 5, 6)));
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Assert.IsFalse (m.Equals (new Matrix (1, 2, 3, 0, 5, 6)));
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Assert.IsFalse (m.Equals (new Matrix (1, 2, 3, 4, 0, 6)));
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Assert.IsFalse (m.Equals (new Matrix (1, 2, 3, 4, 5, 0)));
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Assert.IsFalse (m.Equals (0));
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Assert.IsTrue (m.Equals ((object)m));
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}
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[Test]
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public void Determinant ()
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{
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Assert.AreEqual (0, (new Matrix (2, 2, 2, 2, 0, 0)).Determinant);
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Assert.AreEqual (-6, (new Matrix (1, 4, 2, 2, 0, 0)).Determinant);
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Assert.AreEqual (1, (new Matrix (1, 0, 0, 1, 0, 0)).Determinant);
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Assert.AreEqual (1, (new Matrix (1, 0, 0, 1, 5, 5)).Determinant);
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Assert.AreEqual (-1, (new Matrix (0, 1, 1, 0, 5, 5)).Determinant);
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}
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[Test]
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public void HasInverse ()
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{
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/* same matrices as in Determinant() */
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Assert.IsFalse ((new Matrix (2, 2, 2, 2, 0, 0)).HasInverse);
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Assert.IsTrue ((new Matrix (1, 4, 2, 2, 0, 0)).HasInverse);
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Assert.IsTrue ((new Matrix (1, 0, 0, 1, 0, 0)).HasInverse);
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Assert.IsTrue ((new Matrix (1, 0, 0, 1, 5, 5)).HasInverse);
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Assert.IsTrue ((new Matrix (0, 1, 1, 0, 5, 5)).HasInverse);
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}
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[Test]
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public void IsIdentity ()
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{
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Assert.IsTrue (Matrix.Identity.IsIdentity);;
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Assert.IsFalse ((new Matrix (1, 0, 0, 1, 5, 5)).IsIdentity);
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Assert.IsFalse ((new Matrix (5, 5, 5, 5, 5, 5)).IsIdentity);
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}
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[Test]
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[ExpectedException (typeof (InvalidOperationException))] // "Transform is not invertible."
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public void InvertException1 ()
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{
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Matrix m = new Matrix (2, 2, 2, 2, 0, 0);
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m.Invert ();
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}
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[Test]
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public void Invert ()
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{
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Matrix m;
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m = new Matrix (1, 0, 0, 1, 0, 0);
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m.Invert ();
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CheckMatrix (new Matrix (1, 0, 0, 1, 0, 0), m);
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m = new Matrix (1, 0, 0, 1, 5, 5);
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m.Invert ();
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CheckMatrix (new Matrix (1, 0, 0, 1, -5, -5), m);
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m = new Matrix (1, 0, 0, 2, 5, 5);
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m.Invert ();
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CheckMatrix (new Matrix (1, 0, 0, 0.5, -5, -2.5), m);
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m = new Matrix (0, 2, 4, 0, 5, 5);
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m.Invert ();
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CheckMatrix (new Matrix (0, 0.25, 0.5, 0, -2.5, -1.25), m);
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}
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[Test]
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public void Identity ()
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{
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CheckMatrix (new Matrix (1, 0, 0, 1, 0, 0), Matrix.Identity);
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}
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[Test]
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public void Multiply ()
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{
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CheckMatrix (new Matrix (5, 0, 0, 5, 10, 10),
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Matrix.Multiply (new Matrix (1, 0, 0, 1, 2, 2),
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new Matrix (5, 0, 0, 5, 0, 0)));
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CheckMatrix (new Matrix (0, 0, 0, 0, 10, 10),
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Matrix.Multiply (new Matrix (1, 0, 0, 1, 0, 0),
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new Matrix (0, 0, 0, 0, 10, 10)));
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}
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[Test]
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public void Parse ()
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{
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CheckMatrix (Matrix.Identity, Matrix.Parse ("Identity"));
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CheckMatrix (new Matrix (1, 0, 0, 1, 0, 0), Matrix.Parse ("1, 0, 0, 1, 0, 0"));
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CheckMatrix (new Matrix (0.1, 0.2, 0.3, 0.4, 0.5, 0.6), Matrix.Parse ("0.1,0.2,0.3,0.4,0.5,0.6"));
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// XXX what about locales where . and , are switched?
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}
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[Test]
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public void Prepend ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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m.Prepend (new Matrix (2, 4, 6, 8, 10, 12));
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CheckMatrix (new Matrix (14, 20, 30, 44, 51, 74), m);
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}
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[Test]
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public void Rotate ()
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{
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Matrix m = Matrix.Identity;
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m.Rotate (45);
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CheckMatrix (new Matrix (0.707106781186548,
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0.707106781186547,
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-0.707106781186547,
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0.707106781186548, 0, 0), m);
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m = new Matrix (1, 2, 3, 4, 5, 6);
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m.Rotate (33);
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CheckMatrix (new Matrix (-0.25060750208463,
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2.22198017090588,
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0.337455563776164,
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4.98859937682678,
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0.925518629636958,
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7.75521858274768), m);
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}
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[Test]
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public void RotateAt ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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m.RotateAt (33, 5, 5);
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CheckMatrix (new Matrix (-0.25060750208463,
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2.22198017090588,
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0.337455563776164,
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4.98859937682678,
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4.45536096498497,
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5.83867056794542), m);
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}
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[Test]
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public void RotateAtPrepend ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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m.RotateAtPrepend (33, 5, 5);
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CheckMatrix (new Matrix (2.47258767299051,
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3.85589727595096,
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1.97137266882125,
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2.26540420175164,
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2.78019829094125,
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5.39349261148701), m);
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}
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[Test]
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public void RotatePrepend ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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m.RotatePrepend (33);
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CheckMatrix (new Matrix (2.47258767299051,
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3.85589727595096,
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1.97137266882125,
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2.26540420175164,
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5, 6), m);
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}
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[Test]
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public void Scale ()
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{
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Matrix m = Matrix.Identity;
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m.Scale (5, 6);
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CheckMatrix (new Matrix (5, 0, 0, 6, 0, 0), m);
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m = new Matrix (1, 2, 2, 1, 3, 3);
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m.Scale (5, 5);
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CheckMatrix (new Matrix (5, 10, 10, 5, 15, 15), m);
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}
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[Test]
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public void ScaleAt ()
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{
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Matrix m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAt (2, 2, 0, 0);
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CheckMatrix (new Matrix (2, 0, 0, 2, 4, 4), m);
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m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAt (2, 2, 4, 4);
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CheckMatrix (new Matrix (2, 0, 0, 2, 0, 0), m);
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m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAt (2, 2, 2, 2);
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CheckMatrix (new Matrix (2, 0, 0, 2, 2, 2), m);
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}
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[Test]
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public void ScaleAtPrepend ()
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{
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Matrix m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAtPrepend (2, 2, 0, 0);
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CheckMatrix (new Matrix (2, 0, 0, 2, 2, 2), m);
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m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAtPrepend (2, 2, 4, 4);
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CheckMatrix (new Matrix (2, 0, 0, 2, -2, -2), m);
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m = new Matrix (1, 0, 0, 1, 2, 2);
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m.ScaleAtPrepend (2, 2, 2, 2);
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CheckMatrix (new Matrix (2, 0, 0, 2, 0, 0), m);
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}
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[Test]
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public void ScalePrepend ()
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{
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Matrix m = Matrix.Identity;
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m.ScalePrepend (5, 6);
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CheckMatrix (new Matrix (5, 0, 0, 6, 0, 0), m);
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m = new Matrix (1, 2, 2, 1, 3, 3);
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m.ScalePrepend (5, 5);
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CheckMatrix (new Matrix (5, 10, 10, 5, 3, 3), m);
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}
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[Test]
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public void SetIdentity ()
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{
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Matrix m = new Matrix (5, 5, 5, 5, 5, 5);
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m.SetIdentity ();
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CheckMatrix (Matrix.Identity, m);
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}
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[Test]
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public void Skew ()
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{
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Matrix m = Matrix.Identity;
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m.Skew (10, 15);
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CheckMatrix (new Matrix (1,
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0.267949192431123,
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0.176326980708465,
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1, 0, 0), m);
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m = new Matrix (1, 2, 2, 1, 3, 3);
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m.Skew (10, 15);
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CheckMatrix (new Matrix (1.35265396141693,
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2.26794919243112,
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2.17632698070847,
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1.53589838486225,
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3.52898094212539,
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3.80384757729337), m);
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}
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[Test]
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public void SkewPrepend ()
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{
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Matrix m = Matrix.Identity;
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m.SkewPrepend (10, 15);
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CheckMatrix (new Matrix (1,
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0.267949192431123,
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0.176326980708465,
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1, 0, 0), m);
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m = new Matrix (1, 2, 2, 1, 3, 3);
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m.SkewPrepend (10, 15);
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CheckMatrix (new Matrix (1.53589838486225,
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2.26794919243112,
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2.17632698070847,
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1.35265396141693,
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3, 3), m);
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}
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[Test]
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public void ToStringTest ()
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{
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Matrix m = new Matrix (1, 2, 3, 4, 5, 6);
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Assert.AreEqual ("1,2,3,4,5,6", m.ToString(CultureInfo.InvariantCulture));
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m = Matrix.Identity;
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Assert.AreEqual ("Identity", m.ToString());
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}
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[Test]
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public void PointTransform ()
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{
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Matrix m = new Matrix (2, 0, 0, 2, 4, 4);
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Point p = new Point (5, 6);
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Assert.AreEqual (new Point (14, 16), m.Transform (p));
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Point[] ps = new Point[10];
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for (int i = 0; i < ps.Length; i ++)
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ps[i] = new Point (3 * i, 2 * i);
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m.Transform (ps);
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for (int i = 0; i < ps.Length; i ++)
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Assert.AreEqual (m.Transform (new Point (3 * i, 2 * i)), ps[i]);
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}
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[Test]
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public void VectorTransform ()
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{
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Matrix m = new Matrix (2, 0, 0, 2, 4, 4);
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Vector p = new Vector (5, 6);
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Assert.AreEqual (new Vector (10, 12), m.Transform (p));
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Vector[] ps = new Vector[10];
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for (int i = 0; i < ps.Length; i ++)
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ps[i] = new Vector (3 * i, 2 * i);
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m.Transform (ps);
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for (int i = 0; i < ps.Length; i ++)
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Assert.AreEqual (m.Transform (new Vector (3 * i, 2 * i)), ps[i]);
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}
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[Test]
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public void Translate ()
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{
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Matrix m = new Matrix (1, 0, 0, 1, 0, 0);
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m.Translate (5, 5);
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CheckMatrix (new Matrix (1, 0, 0, 1, 5, 5), m);
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m = new Matrix (2, 0, 0, 2, 0, 0);
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m.Translate (5, 5);
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CheckMatrix (new Matrix (2, 0, 0, 2, 5, 5), m);
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}
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[Test]
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public void TranslatePrepend ()
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{
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Matrix m = new Matrix (1, 0, 0, 1, 0, 0);
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m.TranslatePrepend (5, 5);
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CheckMatrix (new Matrix (1, 0, 0, 1, 5, 5), m);
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m = new Matrix (2, 0, 0, 2, 0, 0);
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m.TranslatePrepend (5, 5);
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CheckMatrix (new Matrix (2, 0, 0, 2, 10, 10), m);
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}
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}
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}
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