com.isencia.passerelle.hmi.form.CheckableComponent.java Source code

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Here is the source code for com.isencia.passerelle.hmi.form.CheckableComponent.java

Source

/*
 * (c) Copyright 2005, iSencia Belgium NV
 * All Rights Reserved.
 * 
 * This software is the proprietary information of iSencia Belgium NV.  
 * Use is subject to license terms.
 */

package com.isencia.passerelle.hmi.form;

import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JCheckBox;
import javax.swing.JPanel;
import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;

/**
 * A combination of a checkbox and another component when the checkbox is on,
 * the other component is shown when it's off the other component disappears An
 * optional subject can be registered as well, so we can easily link the check
 * status with another arbitrary object.
 * 
 * @author erwin
 */
public class CheckableComponent extends JPanel {

    private class ComponentVisualizer implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            checkedComponent.setEnabled(isChecked());
            getParent().validate();
        }
    }

    private JCheckBox checkBox;
    private Component checkedComponent;
    private Object subject;

    public CheckableComponent(Component c, Object subject, boolean isChecked) {
        super(new FormLayout("pref,10px,pref", "pref"));
        this.checkedComponent = c;
        this.checkBox = new JCheckBox();
        this.subject = subject;
        checkBox.setSelected(isChecked);
        checkBox.addActionListener(new ComponentVisualizer());

        // for some reason, if we put it as not visible here
        // the component can not be set visible later on
        // when we're checking the checkbox...
        checkedComponent.setEnabled(isChecked);
        CellConstraints cc = new CellConstraints();
        add(this.checkBox, cc.xy(1, 1));
        add(this.checkedComponent, cc.xy(3, 1));
    }

    public Component getCheckedComponent() {
        return checkedComponent;
    }

    public boolean isChecked() {
        return checkBox.isSelected();
    }

    public Object getSubject() {
        return subject;
    }

    public void setChecked(boolean checked) {
        checkBox.setSelected(checked);
        checkedComponent.setEnabled(checked);
    }
}