Example usage for javax.swing JColorChooser updateUI

Introduction

In this page you can find the example usage for javax.swing JColorChooser updateUI.

Prototype

public void updateUI() 

Source Link

Document

Notification from the UIManager that the L&F has changed.

Usage

From source file:CreateColorSamplePopup.java

public static void main(String args[]) {
    JFrame frame = new JFrame("JColorChooser Create Popup Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    final JButton button = new JButton("Pick to Change Background");

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Color initialBackground = button.getBackground();

            final JColorChooser colorChooser = new JColorChooser(initialBackground);
            //        colorChooser.setPreviewPanel(new JPanel());
            final JLabel previewLabel = new JLabel("I Love Swing", JLabel.CENTER);
            previewLabel.setFont(new Font("Serif", Font.BOLD | Font.ITALIC, 48));
            colorChooser.setPreviewPanel(previewLabel);
            // Bug workaround
            colorChooser.updateUI();

            // For okay button selection, change button background to
            // selected color
            ActionListener okActionListener = new ActionListener() {
                public void actionPerformed(ActionEvent actionEvent) {
                    Color newColor = colorChooser.getColor();
                    if (newColor.equals(button.getForeground())) {
                        System.out.println("Color change rejected");
                    } else {
                        button.setBackground(colorChooser.getColor());
                    }/*from w  w  w .j  a v a  2 s .  com*/
                }
            };

            // For cancel button selection, change button background to red
            ActionListener cancelActionListener = new ActionListener() {
                public void actionPerformed(ActionEvent actionEvent) {
                    button.setBackground(Color.red);
                }
            };

            final JDialog dialog = JColorChooser.createDialog(null, "Change Button Background", true,
                    colorChooser, okActionListener, cancelActionListener);

            // Wait until current event dispatching completes before showing
            // dialog
            Runnable showDialog = new Runnable() {
                public void run() {
                    dialog.show();
                }
            };
            SwingUtilities.invokeLater(showDialog);
        }
    };
    button.addActionListener(actionListener);
    contentPane.add(button, BorderLayout.CENTER);

    frame.setSize(300, 100);
    frame.setVisible(true);
}

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