JAVA UI - Applying windows look and feel with High contrast theme

Question

I have an application which is using windows look and feel. As soon as I change the theme of windows to high contrast theme, all my application color gets changes even when I have set the default colors . Can anyone tell me a work around.

Answer 1

AVA UI - Applying windows look and feel with High contrast theme

It is the responsibility of each L&F to provide a concrete implementation for each of the ComponentUI subclasses defined by Swing. For example, the Java Look and Feel creates an instance of MetalTabbedPaneUI to provide the L&F for JTabbedPane. The actual creation of the UI delegate is handled by Swing for you—for the most part you never need to interact directly with the UI delegate.

Just try switching on these two options before frames/dialogs creation:

AnyJavaContainers.setDefaultLookAndFeelDecorated ( true );
//For exapmle:
JDialog.setDefaultLookAndFeelDecorated ( true );
JFrame.setDefaultLookAndFeelDecorated ( true );

Component created before the LAF change can know about it

SwingUtilities.updateComponentTreeUI(someComponent);

JFileChooser window L&F: similar example No 1 & similar example No 2.

For more How to Set the Look and Feel and How It's works -By Oracle Documentation

Using Darryl's Swing Utils more customize controle over Java Swing Application

Download Darryl's Swing Utils , read descriptions, then run (Darryl's) code, result is selection for JFileChooser (I voting for this question, If you understand from my answer and approve as correct answer)

For exapmle

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.*;
import javax.swing.plaf.metal.MetalButtonUI;

public class CrazyFileChooser {

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                new CrazyFileChooser().makeUI();
            }
        });
    }

    public void makeUI() {
        JFileChooser chooser = new JFileChooser();
        for (AbstractButton button : SwingUtils.getDescendantsOfType(AbstractButton.class, chooser)) {
            button.setUI(new XORButtonUI());
        }
        for (JList list : SwingUtils.getDescendantsOfType(JList.class, chooser)) {
            list.setBackground(Color.PINK);
        }
        chooser.showOpenDialog(null);
    }
}

class XORButtonUI extends MetalButtonUI {

    @Override
    public void paint(Graphics g, JComponent c) {
        g.setXORMode(Color.YELLOW);
        super.paint(g, c);
    }
}