How do I disable/enable application tool tips?

By I Wayan Saryada in Swing 0 Comment 
package org.kodejava.swing;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.ToolTipManager;
import javax.swing.WindowConstants;
import java.awt.FlowLayout;
import java.awt.HeadlessException;

public class DisableToolTip extends JFrame {
    public DisableToolTip() throws HeadlessException {
        initComponent();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new DisableToolTip().setVisible(true));
    }

    private void initComponent() {
        setSize(500, 500);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));

        JButton disable = new JButton("DISABLE");
        disable.setToolTipText("Application tool tip will be disabled.");
        disable.addActionListener(e -> {
            // Disable tool tip for the entire application
            ToolTipManager.sharedInstance().setEnabled(false);
        });

        JButton enable = new JButton("ENABLE");
        enable.setToolTipText("Application tool tip will be enabled.");
        enable.addActionListener(e -> {
            // Enable tool tip for the entire application
            ToolTipManager.sharedInstance().setEnabled(true);
        });

        getContentPane().add(enable);
        getContentPane().add(disable);
    }
}
Disable or Enable Tool Tips

Disable or Enable Tool Tips

How do I set a tool tip for Swing components?

By I Wayan Saryada in Swing 0 Comment 
package org.kodejava.swing;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.WindowConstants;
import java.awt.FlowLayout;

public class ToolTipExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Tool Tip Demo");
        frame.setSize(500, 500);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        JLabel label = new JLabel("Hover on me!");
        // Setting tool tip for our Swing JLabel component
        label.setToolTipText("My JLabel Tool Tip");

        frame.getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));
        frame.getContentPane().add(label);
        frame.setVisible(true);
    }
}
Swing's Tool Tip Demo

Swing’s Tool Tip Demo

How do I create an undecorated JFrame?

By I Wayan Saryada in Swing 2 Comments

This code give you an example of how to create a frame without the title bar, and the frame icons such as maximize, minimize and close.

package org.kodejava.swing;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.BorderLayout;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;

public class UndecoratedFrame {
    private static Point point = new Point();

    public static void main(String[] args) {
        final JFrame frame = new JFrame();

        // Disables or enables decorations for this frame. By setting undecorated
        // to true will remove the frame's title bar including the maximize,
        // minimize and the close icon.
        frame.setUndecorated(true);

        // As the the frame's title bar removed we need to close out frame for
        // instance using our own button.
        JButton button = new JButton("Close Me");
        button.addActionListener(e -> System.exit(0));

        // The mouse listener and mouse motion listener we add here is to simply
        // make our frame draggable.
        frame.addMouseListener(new MouseAdapter() {
            public void mousePressed(MouseEvent e) {
                point.x = e.getX();
                point.y = e.getY();
            }
        });

        frame.addMouseMotionListener(new MouseMotionAdapter() {
            public void mouseDragged(MouseEvent e) {
                Point p = frame.getLocation();
                frame.setLocation(p.x + e.getX() - point.x, p.y + e.getY() - point.y);
            }
        });

        frame.setSize(500, 500);
        frame.setLocation(200, 200);
        frame.setLayout(new BorderLayout());

        frame.getContentPane().add(button, BorderLayout.NORTH);
        frame.getContentPane().add(new JLabel("Drag Me", JLabel.CENTER), 
            BorderLayout.CENTER);
        frame.setVisible(true);
    }
}
An Undecorated JFrame

An Undecorated JFrame

How do I right justified JTextField contents?

By I Wayan Saryada in Swing 0 Comment

To right justified a JTextField contents we can call the setHorizontalAlignment(JTextField.RIGHT) method of the JTextField class.

package org.kodejava.swing;

import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;

public class TextFieldRightJustify extends JFrame {
    public TextFieldRightJustify() {
        initComponents();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new TextFieldRightJustify().setVisible(true));
    }

    private void initComponents() {
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setSize(500, 500);

        Container container = getContentPane();
        container.setLayout(new FlowLayout(FlowLayout.LEFT));

        JTextField textField = new JTextField(15);
        textField.setPreferredSize(new Dimension(100, 20));

        // Right justify the JTextField contents
        textField.setHorizontalAlignment(JTextField.RIGHT);

        container.add(textField);
    }
}

How do I format JLabel using HTML?

By I Wayan Saryada in Swing 0 Comment

JLabel text can be formatted using an HTML standard tags. The example below shows you how we can use and HTML font tag to change the font size, color and style of JLabel text.

package org.kodejava.swing;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import java.awt.Container;
import java.awt.FlowLayout;

public class JLabelHTMLStyle extends JFrame {
    public JLabelHTMLStyle() {
        setTitle("JLabel with HTML Style");
        initComponents();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new JLabelHTMLStyle().setVisible(true));
    }

    private void initComponents() {
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setSize(500, 500);
        Container container = getContentPane();
        container.setLayout(new FlowLayout(FlowLayout.CENTER));

        // Create a JLabel object that display a string formatted using HTML.
        // 14 font size with red and italic.
        String text = "<html>" +
            "<font size='16' color='orange'><strong>Hello World!</strong></font>" +
            "</html>";
        JLabel label = new JLabel(text);
        container.add(label);
    }
}
JLabel with HTML Style

JLabel with HTML Style