package com.onaro.util.jfc.mixedvalue;

import static com.onaro.util.jfc.mixedvalue.MixedValueConstants.*;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
 * Shows "Mixed values" when the value is null
 */
public class MixedValuePasswordField extends JPasswordField implements MouseListener, KeyListener {

    private static final long serialVersionUID = 1L;

    private boolean mixed;

    private Color regularColor;
    private Font italicFont;
    private Font plainFont;

    public MixedValuePasswordField() {
        this.regularColor = this.getForeground();
        italicFont = getFont().deriveFont(Font.ITALIC);
        plainFont = getFont().deriveFont(Font.PLAIN);

        addMouseListener(this);
        addKeyListener(this);
    }

    public void setMixed(boolean mixed) {
        if (this.mixed == mixed) return;
        this.mixed = mixed;

        if (mixed) {
            super.setText(MIXED_VALUE);
            setForeground(UIManager.getColor("mixedValue.color")); //$NON-NLS-1$
            setFont(italicFont);
        } else {
            setText(null);
            setForeground(regularColor);
            setFont(plainFont);
        }
    }

    public boolean isMixed() {
        return mixed;
    }

    public void mouseClicked(MouseEvent e) {
        setMixed(false);
    }

    public void mousePressed(MouseEvent e) {}

    public void mouseReleased(MouseEvent e) {}

    public void mouseEntered(MouseEvent e) {}

    public void mouseExited(MouseEvent e) {}

    public void keyTyped(KeyEvent e) {}

    public void keyPressed(KeyEvent e) {
        setMixed(false);
    }

    public void keyReleased(KeyEvent e) {}
}