netbeamschart.java

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/*
*  Copyright (c) 2001 Sun Microsystems, Inc.  All rights
*  reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*  notice, this list of conditions and the following disclaimer.
*
*  2. Redistributions in binary form must reproduce the above copyright
*  notice, this list of conditions and the following disclaimer in
*  the documentation and/or other materials provided with the
*  distribution.
*
*  3. The end-user documentation included with the redistribution,
*  if any, must include the following acknowledgment:
*  "This product includes software developed by the
*  Sun Microsystems, Inc. for Project JXTA."
*  Alternately, this acknowledgment may appear in the software itself,
*  if and wherever such third-party acknowledgments normally appear.
*
*  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA"
*  must not be used to endorse or promote products derived from this
*  software without prior written permission. For written
*  permission, please contact Project JXTA at http://www.jxta.org.
*
*  5. Products derived from this software may not be called "JXTA",
*  nor may "JXTA" appear in their name, without prior written
*  permission of Sun.
*
*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
*  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
*  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
*  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
*  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*  SUCH DAMAGE.
*  ====================================================================
*
*  This software consists of voluntary contributions made by many
*  individuals on behalf of Project JXTA.  For more
*  information on Project JXTA, please see
*  <http://www.jxta.org/>.
*
*  This license is based on the BSD license adopted by the Apache Foundation.
*
*  $Id: NetBeamsChart.java,v 1.2 2006/07/13 05:26:37 nano Exp $
*/

package net.jxta.myjxta.misc.beam;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.awt.geom.Line2D;
import java.awt.image.BufferedImage;
import java.util.Date;
import java.util.Properties;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;


/**
 * Tracks Memory allocated & used, displayed in graph form.
 */
public class NetBeamsChart extends JPanel {

    public Surface surf;
    String desc = null;
    String gid = null;
    String sid = null;
    String units = null;
    String type = null;
    String url = null;
    String vxpath = null;
    float gpsx = 0.0f;
    float gpsy = 0.0f;
    float scalefactor = 1.0f;

    public NetBeamsChart(Properties p) {
        this.desc = p.getProperty("desc");
        this.units = p.getProperty("units");
        this.gid = p.getProperty("gridid");
        this.sid = p.getProperty("sid");
        this.type = p.getProperty("type");
        this.url = p.getProperty("url");
        this.vxpath = p.getProperty("vxpath");
        this.gpsx = Float.parseFloat(p.getProperty("gpsx"));
        this.gpsy = Float.parseFloat(p.getProperty("gpsy"));
        this.scalefactor = Float.parseFloat(p.getProperty("scalefactor"));
        setLayout(new BorderLayout());
        setBorder(new TitledBorder(new EtchedBorder(), "Sensor: " + sid + " - " + desc));
        add(surf = new Surface());
    }

    public String getSensorID() {
        return sid;
    }

    public String getValueXPath() {
        return vxpath;
    }

    public String getSensorURL() {
        return url;
    }

    public String getDescription() {
        return desc;
    }

    public String getSensorType() {
        return type;
    }

    public String getSensorUnits() {
        return units;
    }

    public float getSensorGPSXCoordinate() {
        return gpsx;
    }

    public float getSensorGPSYCoordinate() {
        return gpsy;
    }

    public class Surface extends JPanel implements Runnable {

        public Thread thread;
        public long sleepAmount = 1000;
        public long lastDraw = 0L;
        public boolean fullDrawNeeded = false;
        private int w, h;
        private BufferedImage bimg;
        private Graphics2D big;
        private Font font = new Font("Times New Roman", Font.PLAIN, 11);
        private FontMetrics fm = null;
        private Runtime r = Runtime.getRuntime();
        private int columnInc;
        private float pts[];
        private int ptNum;
        private int ascent, descent;
        private Rectangle graphOutlineRect = new Rectangle();
        private Line2D graphLine = new Line2D.Float();
        private Color graphColor = new Color(46, 139, 87);
        private float currVal = 0.0f;
        private long lastwritetime = 0L;
        private long writeInterval = 5000L;

        // set some start values here.  If you want the graph
        // graph will adjust over time, but only when boundaries
        // of min and max have been exceeded
        private float minval = 0.0f;
        private float maxval = 10.0f;

        // pick number of rows as 5 or 10 to help with decimals
        public int NROWS = 6;
        public int NCOLS = 12;

        public Surface() {
            setBackground(Color.black);
            setPreferredSize(new Dimension(135, 80));
        }

        public Dimension getMinimumSize() {
            return getPreferredSize();
        }

        public Dimension getMaximumSize() {
            return getPreferredSize();
        }

        public Dimension getPreferredSize() {
            return new Dimension(135, 80);
        }

        public void setCurrentIntValue(float val) {
            currVal = val;
        }

        public float getCurrentValue() {
            return currVal;
        }

        public void paint(Graphics g) {

            if (big == null) {
                return;
            }
            long currDraw = System.currentTimeMillis();
            if ((currDraw - lastDraw) > sleepAmount) {
                fullDrawNeeded = true;
                //System.out.println("fullDrawNeeded = true");
                lastDraw = currDraw;
            }

            // Calculate dimensions
            float ssH = ascent + descent;
            float remainingHeight = (h - (ssH * 2) - 0.5f);
            int graphX = 35;
            int graphY = (int) ssH;
            int graphW = w - graphX - 5;
            int graphH = (int) remainingHeight;

            // initialize the data buffer if necessary. Make the number of
            // points equal to the pixel width of the graph
            if (pts == null) {
                pts = new float[graphW];
                ptNum = 0;