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/*
* Copyright (c) 2018, 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 8199441
* @key headful
* @summary Verifies caret position in multiline line-wrapped text component
* in hidpi mode should be in sync with mouse press position.
* @run main/othervm -Dsun.java2d.uiScale=1.5 TestCaretPosition
*/
import javax.swing.JTextArea;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.text.BadLocationException;
import javax.swing.text.Caret;
import java.awt.Font;
import java.awt.BorderLayout;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Rectangle2D;
public class TestCaretPosition {
private static JTextArea jTextArea1;
private static JFrame f;
private static void createUI() {
jTextArea1 = new JTextArea(5, 80);
f = new JFrame();
jTextArea1.setFont(new java.awt.Font("Arial", Font.PLAIN, 12));
fillTextArea(jTextArea1);
jTextArea1.setLineWrap(true);
jTextArea1.addMouseListener(new MouseListener() {
@Override
public void mouseClicked(MouseEvent e) {}
@Override
public void mousePressed(MouseEvent e) {
try {
Caret caret = jTextArea1.getCaret();
Rectangle2D rect = jTextArea1.modelToView2D(caret.getDot());
if (Math.abs(e.getPoint().x - rect.getX()) > 5) {
System.out.println("mouse point " + e.getPoint());
System.out.println("caret position " + rect);
throw new RuntimeException(" Wrong caret position");
}
} catch (BadLocationException ex) {}
}
@Override
public void mouseReleased(MouseEvent e) {}
@Override
public void mouseEntered(MouseEvent e) {}
@Override
public void mouseExited(MouseEvent e) {}
});
f.add(new JScrollPane(jTextArea1), BorderLayout.CENTER);
f.pack();
f.setVisible(true);
}
public static void main(String args[]) throws Exception {
try {
SwingUtilities.invokeAndWait(() -> createUI());
Point p = jTextArea1.getLocationOnScreen();
Robot robot = new Robot();
robot.setAutoDelay(200);
robot.mouseMove(p.x+ 480, p.y+6);
robot.waitForIdle();
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.waitForIdle();
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.waitForIdle();
} finally {
SwingUtilities.invokeAndWait(() -> f.dispose());
}
}
private static void fillTextArea(JTextArea area) {
StringBuilder buf = new StringBuilder();
for (int i = 0; i < 3; i++) {
StringBuilder row = new StringBuilder();
for (int j = 0; j < 50; j++) {
row.append(j);
if (j % 5 == 0) {
row.append(" ");
}
}
buf.append(row).append(System.lineSeparator());
}
area.setText(buf.toString());
area.setCaretPosition(0);
}
}
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