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// Copyright 2003, FreeHEP.
package org.freehep.graphicsio.exportchooser;
import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Properties;
import javax.swing.AbstractButton;
import javax.swing.JComboBox;
/**
*
* @author Mark Donszelmann
* @version $Id: freehep-graphicsio/src/main/java/org/freehep/graphicsio/exportchooser/OptionComboBox.java 5641ca92a537 2005/11/26 00:15:35 duns $
*/
public class OptionComboBox extends JComboBox implements Options {
protected String initialSelectedItem;
protected String key;
public OptionComboBox(Properties options, String key, String[] values) {
super(values);
setSelectedItem(options.getProperty(key, values[0]));
setEnabled(values.length > 1);
this.key = key;
initialSelectedItem = (String) getSelectedItem();
}
public boolean applyChangedOptions(Properties options) {
if (!getSelectedItem().equals(initialSelectedItem)) {
options.setProperty(key, (String) getSelectedItem());
return true;
}
return false;
}
/**
* Enables (otherwise disables) the supplied component if this item is
* checked. Can be called for multiple components.
*/
public void enables(final String item, final Component c) {
if (c.isEnabled()) {
c.setEnabled(getSelectedItem().equals(item));
addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
c.setEnabled(getSelectedItem().equals(item));
}
});
}
}
/**
* Shows (otherwise hides) the supplied component if this item is selected.
* Can be called for multiple components.
*/
public void shows(final String item, final Component c) {
c.setVisible(getSelectedItem().equals(item));
addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
c.setVisible(getSelectedItem().equals(item));
}
});
}
/**
* Selects (or deselects) the supplied abstract button if this item is
* selected. Can be called for multiple components and items.
*/
public void selects(final String item, final AbstractButton c) {
c.setSelected(getSelectedItem().equals(item));
addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
c.setSelected(getSelectedItem().equals(item));
}
});
}
}
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