/* getPoint2D.java -- some checks for the getPoint2D() method of the
AffineTransformOp class.
Copyright (C) 2006 Francis Kung <fkung@redhat.com>
This file is part of Mauve.
Mauve is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
Mauve is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Mauve; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: JDK1.2
package gnu.testlet.java.awt.image.AffineTransformOp;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.image.AffineTransformOp;
/**
* Checks the getPoint2D method in the
* {@link AffineTransformOp} class.
*/
public class getPoint2D implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
testIdentity(harness);
testRotation(harness);
testScale(harness);
testShear(harness);
testTranslation(harness);
}
private void testIdentity(TestHarness harness)
{
harness.checkPoint("testIdentity");
AffineTransform xform = new AffineTransform();
AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(5,5));
Point2D pt = null;
Point2D pt2 = op.getPoint2D(new Point2D.Double(10,-5), pt);
harness.check(pt, null); // this is what the ref impl does...
harness.check(pt2, new Point2D.Double(10, -5));
pt = new Point2D.Double(0,0);
pt2 = op.getPoint2D(new Point2D.Double(10,-5), pt);
harness.check(pt, new Point2D.Double(10, -5));
harness.check(pt, pt2);
pt = new Point2D.Float(0,0);
op.getPoint2D(new Point2D.Float(-10,-5), pt);
harness.check(pt, new Point2D.Float(-10, -5));
}
private void testRotation(TestHarness harness)
{
harness.checkPoint("testRotation");
AffineTransform xform = AffineTransform.getRotateInstance(Math.PI / 2);
AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(-5,5));
// Do it again, but result in a diamond (not another level rectangle)
xform.rotate(Math.PI / 3);
op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(-6.830127018922193, -1.8301270189221923));
// Rotation about a point
xform.setToIdentity();
xform.rotate(Math.PI / 2, 10, 2);
op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(7,-3));
}
private void testScale(TestHarness harness)
{
harness.checkPoint("testScale");
AffineTransform xform = AffineTransform.getScaleInstance(1.0, 1.0);
AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(5, 5));
xform.scale(2.5, 4.75);
op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(12.5,23.75));
}
private void testShear(TestHarness harness)
{
harness.checkPoint("testShear");
AffineTransform xform = AffineTransform.getShearInstance(1.5, 3.25);
AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(12.5,21.25));
}
private void testTranslation(TestHarness harness)
{
harness.checkPoint("testTranslation");
AffineTransform xform = AffineTransform.getTranslateInstance(75, 50);
AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_BICUBIC);
harness.check(op.getPoint2D(new Point2D.Double(5, 5), null), new Point2D.Double(80,55));
}
}