SupportOptionsPanelController.java

/*
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package ca.weblite.netbeans.mirah.support.options;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.Collection;
import javax.swing.JComponent;
import ca.weblite.netbeans.mirah.support.spi.MirahOptionsSubpanel;
import org.netbeans.spi.options.OptionsPanelController;
import org.openide.util.HelpCtx;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;

/**
 *
 * @author Martin Adamek
 */
@NbBundle.Messages(
    "OptionsCategory_Mirah=Mirah"
)
@OptionsPanelController.SubRegistration(
    id = "ca-weblite-netbeans-mirah-support-api-MirahSettings",
    displayName="#OptionsCategory_Mirah"
)
public final class SupportOptionsPanelController extends OptionsPanelController {

    private SupportPanel panel;
    private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
    private boolean changed;

    @Override
    public void update() {
        getPanel().load();
        changed = false;
    }

    @Override
    public void applyChanges() {
        getPanel().store();
        changed = false;
    }

    @Override
    public void cancel() {
        // need not do anything special, if no changes have been persisted yet
    }

    @Override
    public boolean isValid() {
        return getPanel().valid();
    }

    @Override
    public boolean isChanged() {
        return getPanel().changed();
    }

    @Override
    public HelpCtx getHelpCtx() {
        return null; // new HelpCtx("...ID") if you have a help set
    }

    @Override
    public JComponent getComponent(Lookup masterLookup) {
        return getPanel();
    }

    @Override
    public void addPropertyChangeListener(PropertyChangeListener l) {
        pcs.addPropertyChangeListener(l);
    }

    @Override
    public void removePropertyChangeListener(PropertyChangeListener l) {
        pcs.removePropertyChangeListener(l);
    }

    private SupportPanel getPanel() {
        if (panel == null) {
            Collection<? extends MirahOptionsSubpanel> subpanels = Lookup.getDefault().lookupAll(MirahOptionsSubpanel.class);
            panel = new SupportPanel(subpanels);
        }
        return panel;
    }

    void changed() {
        if (!changed) {
            changed = true;
            pcs.firePropertyChange(OptionsPanelController.PROP_CHANGED, false, true);
        }
        pcs.firePropertyChange(OptionsPanelController.PROP_VALID, null, null);
    }
}