package jmslexamples;

import java.awt.FlowLayout;

import javax.swing.JApplet;

import com.didkovsky.portview.*;
import com.didkovsky.portview.swing.ViewFactorySwing;
import com.softsynth.jmsl.JMSL;
import com.softsynth.jmsl.view.PVLabelAdapter;

/**
 * The com.didkovsky.portview scrollbar can be either awt or Swing compatible depending on the ViewFactory
 * 
 * @author Nick Didkovsky, (c) 2005 Nick Didkovsky
 *  
 */

public class TestPortViewScrollbar extends JApplet implements PVScrollbarListener {

    PVScrollbar myScrollbar;
    PVLabel valueLabel;

    public void start() {
        JMSL.setViewFactory(new ViewFactorySwing());
        // default value 50, min value 0, max value 100
        myScrollbar = new PVScrollbar(50, 0, 100);
        myScrollbar.addPVScrollbarListener(this);
        // set the size of the scrollbar
        myScrollbar.setSize(200, 25);
        // set the increment that the value will jump when user clicks inside scrollbar
        myScrollbar.setPageIncrement(10);
        // set the increment that the value will jump when user clicks on arrows of scrollbar
        myScrollbar.setLineIncrement(1);
        valueLabel = new PVLabelAdapter("Scrollbar value");
        getContentPane().setLayout(new FlowLayout());
        getContentPane().add(myScrollbar.getComponent());
        getContentPane().add(valueLabel.getComponent());
    }

    public void stop() {
        removeAll();
    }

    void handleMyScrollbar() {
        valueLabel.setText(myScrollbar.getValue() + "");
    }

    /**
     * This is the callback where a scrollbar notifies listeners that its value changed.
     */
    public void notifyScrollbarValueChanged(PVScrollbar sb) {
        if (sb == myScrollbar) {
            handleMyScrollbar();
        }
    }

}