138 lines
4.8 KiB
Java
138 lines
4.8 KiB
Java
/*
|
|
* Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code 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
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/*
|
|
* @test
|
|
* @bug 4171820
|
|
* @summary Checks that GradientPaint responds to shearing transforms correctly
|
|
* The gradients drawn should be parallel to the sides of the
|
|
* indicated anchor rectangle.
|
|
* @library /java/awt/regtesthelpers
|
|
* @build PassFailJFrame
|
|
* @run main/manual ShearTest
|
|
*/
|
|
|
|
import java.awt.Canvas;
|
|
import java.awt.Color;
|
|
import java.awt.Dimension;
|
|
import java.awt.Frame;
|
|
import java.awt.GradientPaint;
|
|
import java.awt.Graphics;
|
|
import java.awt.Graphics2D;
|
|
import java.awt.GridLayout;
|
|
import java.awt.Panel;
|
|
import java.awt.Rectangle;
|
|
import java.awt.geom.AffineTransform;
|
|
|
|
public class ShearTest {
|
|
public static void main(String[] args) throws Exception {
|
|
String INSTRUCTIONS = """
|
|
This test displays 2 rows each containing 4 gradient fills. Each
|
|
gradient fill is labeled depending on whether the line or lines
|
|
of the gradient should be truly vertical, truly horizontal, or
|
|
some slanted diagonal direction. The test passes if the direction
|
|
of each gradient matches its label.
|
|
""";
|
|
|
|
PassFailJFrame.builder()
|
|
.title("Test Instructions")
|
|
.instructions(INSTRUCTIONS)
|
|
.columns(35)
|
|
.testUI(ShearTest::createUI)
|
|
.build()
|
|
.awaitAndCheck();
|
|
}
|
|
|
|
public static Frame createUI() {
|
|
Frame f = new Frame("Shear Gradient Test");
|
|
f.setLayout(new GridLayout(0, 1));
|
|
f.add(getPanelSet(false), "North");
|
|
f.add(getPanelSet(true), "Center");
|
|
f.setSize(500, 300);
|
|
return f;
|
|
}
|
|
|
|
public static Panel getPanelSet(boolean horizontal) {
|
|
String direven = horizontal ? "Slanted" : "Vertical";
|
|
String dirodd = horizontal ? "Horizontal" : "Slanted";
|
|
|
|
Panel p = new Panel();
|
|
p.setLayout(new GridLayout(0, 4));
|
|
p.add(new ShearCanvas(direven, false, horizontal, false, true));
|
|
p.add(new ShearCanvas(dirodd, false, horizontal, true, false));
|
|
p.add(new ShearCanvas(direven, true, horizontal, false, true));
|
|
p.add(new ShearCanvas(dirodd, true, horizontal, true, false));
|
|
|
|
return p;
|
|
}
|
|
|
|
public static class ShearCanvas extends Canvas {
|
|
public static final int GRADW = 30;
|
|
|
|
public static final Rectangle anchor =
|
|
new Rectangle(-GRADW / 2, -GRADW / 2, GRADW, GRADW);
|
|
|
|
public static final Color faintblue = new Color(0f, 0f, 1.0f, 0.35f);
|
|
|
|
private AffineTransform txform;
|
|
private GradientPaint grad;
|
|
private String label;
|
|
|
|
public ShearCanvas(String label,
|
|
boolean cyclic, boolean horizontal,
|
|
boolean shearx, boolean sheary) {
|
|
txform = new AffineTransform();
|
|
if (shearx) {
|
|
txform.shear(-.5, 0);
|
|
}
|
|
if (sheary) {
|
|
txform.shear(0, -.5);
|
|
}
|
|
int relx = horizontal ? 0 : GRADW / 2;
|
|
int rely = horizontal ? GRADW / 2 : 0;
|
|
grad = new GradientPaint(-relx, -rely, Color.green,
|
|
relx, rely, Color.yellow, cyclic);
|
|
this.label = label;
|
|
}
|
|
|
|
public void paint(Graphics g) {
|
|
Graphics2D g2d = (Graphics2D) g;
|
|
|
|
AffineTransform at = g2d.getTransform();
|
|
g2d.translate(75, 75);
|
|
g2d.transform(txform);
|
|
g2d.setPaint(grad);
|
|
g2d.fill(g.getClip());
|
|
g2d.setColor(faintblue);
|
|
g2d.fill(anchor);
|
|
g2d.setTransform(at);
|
|
|
|
Dimension d = getSize();
|
|
g2d.setColor(Color.black);
|
|
g2d.drawRect(0, 0, d.width - 1, d.height - 1);
|
|
g2d.drawString(label, 5, d.height - 5);
|
|
g2d.dispose();
|
|
}
|
|
}
|
|
}
|