source: tmcsimulator/trunk/src/tmcsim/simulationmanager/model/CMSDiversionSliderBox.java @ 2

package tmcsim.simulationmanager.model;



import java.awt.Dimension;

import java.text.NumberFormat;

import java.util.Hashtable;



import javax.swing.Box;

import javax.swing.BoxLayout;

import javax.swing.JFormattedTextField;

import javax.swing.JLabel;

import javax.swing.JSlider;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import javax.swing.text.NumberFormatter;



import tmcsim.cadmodels.CMSDiversion;



/**

 * The CMSDiversionSliderBox is a GUI component that is used to create

 * the diversion slider that allows the user to select a diversion percentage.

 * This object represents a single possible diversion for a CMS.

 * 

 * @author Matthew Cechini

 * @version

 */

@SuppressWarnings("serial")

public class CMSDiversionSliderBox extends Box implements ChangeListener {



    /** CMSDiversion object with data for this diversion slider. */

    private CMSDiversion diversionObject;



    /** Slider to allow user to adjust the diversion percentage. */

    private JSlider diversionSlider;



    /** Formatted Text Field to display current percentage. */

    private JFormattedTextField textField;



    /** Maximum allowed diversion percentage. */

    private int maxDiversion;



    /** Label table for diversion slider. */

    private Hashtable<Integer, JLabel> diversionLabelTable = null;



    

    /**

     * Constructor.  Initialize GUI components.  Create the diversion

     * slider with a maximum value equal to the maximum diversion

     * percentage in the parameter CMSDiversion object.

     * 

     * @param newDivObj CMS diversion data to be displayed.

     */

    public CMSDiversionSliderBox(CMSDiversion newDivObj) {

        super(BoxLayout.Y_AXIS);

        setAlignmentX(Box.CENTER_ALIGNMENT);



        diversionObject = newDivObj;

        maxDiversion    = diversionObject.maxDiversionPercent.intValue();



        diversionLabelTable = new Hashtable<Integer, JLabel>();

        diversionLabelTable.put(new Integer(0), new JLabel("0%"));

        diversionLabelTable.put(new Integer(maxDiversion), 

                new JLabel(String.valueOf(maxDiversion) + "%"));



        NumberFormat numberFormat = NumberFormat.getPercentInstance();

        NumberFormatter formatter = new NumberFormatter(numberFormat);

        formatter.setMinimum(new Integer(0));

        formatter.setMaximum(new Integer(maxDiversion));



        textField = new JFormattedTextField(formatter);

        textField.setValue(new Integer(0));

        textField.setColumns(5);

        textField.setAlignmentX(Box.CENTER_ALIGNMENT);

        textField.setMaximumSize(new Dimension(50, 25));

        textField.setMinimumSize(new Dimension(40, 25));



        diversionSlider = new JSlider(JSlider.VERTICAL, 0, maxDiversion, 0);

        diversionSlider.addChangeListener(this);

        diversionSlider.setAlignmentX(Box.CENTER_ALIGNMENT);

        diversionSlider.setPaintTicks(true);

        diversionSlider.setPaintLabels(true);

        diversionSlider.setMinorTickSpacing(10);

        diversionSlider.setLabelTable(diversionLabelTable);

        diversionSlider.setValue(diversionObject.getCurrDiv());



        add(textField);

        add(diversionSlider);

    }



    /**

     * Set the CMSDiversion object's diversion percentage to the 

     * new value on the slider.

     */

    public void apply() {

        diversionObject.setCurrDiv(diversionSlider.getValue());

    }



    /**

     * ChangeListener method.  When the slider changes, update the

     * formatted text field with the new percentage.

     */

    public void stateChanged(ChangeEvent e) {



        float newDiv = diversionSlider.getValue();

        

        if (!diversionSlider.getValueIsAdjusting()) {

            textField.setValue(new Float(newDiv / 100f));

        } else {

            textField.setText(String.valueOf((int) newDiv) + "%");

        }

    }

}