public void Transform_Operations ()
{
using (Pen p = new Pen (Brushes.Red)) {
Matrix clone = p.Transform.Clone ();
Matrix mul = clone.Clone ();
clone.Multiply (mul, MatrixOrder.Append);
p.MultiplyTransform (mul, MatrixOrder.Append);
Assert.AreEqual (p.Transform, clone, "Multiply/Append");
clone.Multiply (mul, MatrixOrder.Prepend);
p.MultiplyTransform (mul, MatrixOrder.Prepend);
Assert.AreEqual (p.Transform, clone, "Multiply/Prepend");
clone.Rotate (45, MatrixOrder.Append);
p.RotateTransform (45, MatrixOrder.Append);
Assert.AreEqual (p.Transform, clone, "Rotate/Append");
clone.Rotate (45, MatrixOrder.Prepend);
p.RotateTransform (45, MatrixOrder.Prepend);
Assert.AreEqual (p.Transform, clone, "Rotate/Prepend");
clone.Scale (0.25f, 2, MatrixOrder.Append);
p.ScaleTransform (0.25f, 2, MatrixOrder.Append);
Assert.AreEqual (p.Transform, clone, "Scale/Append");
clone.Scale (0.25f, 2, MatrixOrder.Prepend);
p.ScaleTransform (0.25f, 2, MatrixOrder.Prepend);
Assert.AreEqual (p.Transform, clone, "Scale/Prepend");
clone.Translate (10, 20, MatrixOrder.Append);
p.TranslateTransform (10, 20, MatrixOrder.Append);
Assert.AreEqual (p.Transform, clone, "Translate/Append");
clone.Translate (30, 40, MatrixOrder.Prepend);
p.TranslateTransform (30, 40, MatrixOrder.Prepend);
Assert.AreEqual (p.Transform, clone, "Translate/Prepend");
clone.Reset ();
p.ResetTransform ();
Assert.AreEqual (p.Transform, clone, "Reset");
}
}
public void ScaleTransform ()
{
using (Pen p = new Pen (Brushes.Red)) {
p.ScaleTransform (2, 4);
float[] elements = p.Transform.Elements;
Assert.AreEqual (2, elements[0], 0.1, "matrix.0");
Assert.AreEqual (0, elements[1], 0.1, "matrix.1");
Assert.AreEqual (0, elements[2], 0.1, "matrix.2");
Assert.AreEqual (4, elements[3], 0.1, "matrix.3");
Assert.AreEqual (0, elements[4], 0.1, "matrix.4");
Assert.AreEqual (0, elements[5], 0.1, "matrix.5");
p.ScaleTransform (0.5f, 0.25f);
Assert.IsTrue (p.Transform.IsIdentity, "Transform.IsIdentity");
}
}
public void ScaleTransform_MaxMin ()
{
using (Pen p = new Pen (Brushes.Red)) {
p.ScaleTransform (Single.MaxValue, Single.MinValue);
float[] elements = p.Transform.Elements;
Assert.AreEqual (Single.MaxValue, elements[0], 1e33, "matrix.0");
Assert.AreEqual (0, elements[1], 0.1, "matrix.1");
Assert.AreEqual (0, elements[2], 0.1, "matrix.2");
Assert.AreEqual (Single.MinValue, elements[3], 1e33, "matrix.3");
Assert.AreEqual (0, elements[4], 0.1, "matrix.4");
Assert.AreEqual (0, elements[5], 0.1, "matrix.5");
}
}
void CheckMethods (Pen pen, String tag)
{
// Try modifying a SystemPen by calling methods.
// ArgumentException must be thrown in some cases.
/*
try {
// NotImplemented
pen.SetLineCap (LineCap.Flat, LineCap.Round, DashCap.Triangle);
Assert.Fail (tag + "#1: must throw ArgumentException");
} catch (ArgumentException) {
Assert.IsTrue (tag + "#1", true);
}
*/
pen.ResetTransform ();
pen.RotateTransform (90);
pen.ScaleTransform (2, 1);
pen.TranslateTransform (10, 20);
pen.MultiplyTransform (new Matrix ());
pen.Clone ();
try {
pen.Dispose ();
Assert.Fail (tag + "#8: must throw ArgumentException");
} catch (ArgumentException) {
Assert.IsTrue (true, tag + "#8");
}
}
