test/jdk/javax/swing/JOptionPane/bug4194862.java

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/*
 * @test
 * @bug 4194862
 * @summary Tests that internal frame-based dialogs are centered relative
            to their parents
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual bug4194862
 */

import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;

public class bug4194862 {
    private static final String INSTRUCTIONS = """
            In the internal frame titled "Main",
            click the "Show JOptionPane Dialog" button.
            A dialog will appear. It should be centered with
            respect to the JInternalFrame - "Main".

            If the above is true then click on JOptionPane's "YES" button
            to PASS else click JOptionPane's "NO" button to FAIL the test.
            """;

    public static void main(String[] args) throws Exception{
        PassFailJFrame.builder()
                .title("Instructions")
                .instructions(INSTRUCTIONS)
                .columns(40)
                .testUI(bug4194862::createAndShowUI)
                .screenCapture()
                .build()
                .awaitAndCheck();
    }

    private static JFrame createAndShowUI() {
        JFrame frame = new JFrame("bug4194862 - JInternalFrame JOptionPane");
        JDesktopPane desktop = new JDesktopPane();
        frame.add(desktop);
        JInternalFrame jInternalFrame = new JInternalFrame("Main", true);
        desktop.add(jInternalFrame);
        jInternalFrame.setBounds(5, 30, 390, 240);
        jInternalFrame.setVisible(true);

        JButton b = new JButton("Show JOptionPane Dialog");
        b.addActionListener(e -> {
            int retVal = JOptionPane.showInternalConfirmDialog(
                                      jInternalFrame, "Am I centered?",
                                      "bug4194862 JOptionPane", JOptionPane.YES_NO_OPTION);
            switch (retVal) {
                case JOptionPane.YES_OPTION -> PassFailJFrame.forcePass();
                case JOptionPane.NO_OPTION ->
                        PassFailJFrame.forceFail("JOptionPane isn't centered"
                                + " within JInternalFrame \"Main\"");
            }
        });
        jInternalFrame.add(b);

        for (int i = 0; i < 4; i++) {
            JInternalFrame f = new JInternalFrame("JIF: "+ i);
            f.setBounds(i * 50, i * 33, 120, 120);
            f.setVisible(true);
            desktop.add(f);
        }
        frame.setSize(450, 400);
        return frame;
    }
}