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/*
* Copyright (c) 1999, 2023, 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 4050138
@summary Lightweight components: Enter/Exit mouse events
incorrectly reported during drag
@key headful
@run main LightweightDragTest
*/
import java.awt.AWTException;
import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
public class LightweightDragTest {
MyComponent c,c2;
static Frame frame;
volatile int x = 0;
volatile int y = 0;
volatile int x2 = 0;
volatile int y2 = 0;
public static void main(String[] args) throws Exception {
LightweightDragTest test = new LightweightDragTest();
try {
EventQueue.invokeAndWait(() -> {
test.init();
});
test.start();
} finally {
EventQueue.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
public void init() {
frame = new Frame("Test LightWeight Component Drag");
c = new MyComponent();
c2 = new MyComponent();
frame.add(c, BorderLayout.WEST);
frame.add(c2, BorderLayout.EAST);
frame.setSize(250, 200);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public void start() throws Exception {
Robot rb;
try {
rb = new Robot();
} catch (AWTException e) {
throw new Error("Could not create robot");
}
rb.setAutoDelay(10);
rb.delay(1000);
rb.waitForIdle();
EventQueue.invokeAndWait(() -> {
x = c.getLocationOnScreen().x + c.getWidth() / 2;
y = c.getLocationOnScreen().y + c.getHeight() / 2;
x2 = c2.getLocationOnScreen().x + c2.getWidth() / 2;
y2 = c2.getLocationOnScreen().y + c2.getHeight() / 2;
});
int xt = x;
int yt = y;
rb.mouseMove(xt, yt);
rb.mousePress(InputEvent.BUTTON1_MASK);
EventQueue.invokeAndWait(() -> {
c.isInside = true;
c2.isInside = false;
});
// drag
while (xt != x2 || yt != y2) {
if (x2 > xt) ++xt;
if (x2 < xt) --xt;
if (y2 > yt) ++yt;
if (y2 < yt) --yt;
rb.mouseMove(xt, yt);
}
rb.mouseRelease(InputEvent.BUTTON1_MASK);
EventQueue.invokeAndWait(() -> {
if (c.isInside || !c2.isInside) {
throw new Error("Test failed: mouse events did not arrive");
}
});
}
}
class MyComponent extends Component {
public boolean isInside;
public void paint(Graphics g) {
g.setColor(getBackground());
g.fillRect(0,0,getSize().width,getSize().height);
}
public MyComponent() {
enableEvents(AWTEvent.MOUSE_EVENT_MASK);
setBackground(Color.blue);
}
public Dimension getPreferredSize() {
return new Dimension(100, 100);
}
public void processEvent(AWTEvent e) {
int eventID = e.getID();
if ((eventID == MouseEvent.MOUSE_ENTERED)) {
setBackground(Color.red);
repaint();
isInside = true;
} else if (eventID == MouseEvent.MOUSE_EXITED) {
setBackground(Color.blue);
repaint();
isInside = false;
}
super.processEvent(e);
}
}
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