Package com.meapsoft.visualizer

Source Code of com.meapsoft.visualizer.SingleFeatureLineGraphPanel

/*
*  Copyright 2006-2007 Columbia University.
*
*  This file is part of MEAPsoft.
*
*  MEAPsoft is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License version 2 as
*  published by the Free Software Foundation.
*
*  MEAPsoft is distributed in the hope that it will be useful, but
*  WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*  General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with MEAPsoft; if not, write to the Free Software
*  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
*  02110-1301 USA
*
*  See the file "COPYING" for the text of the license.
*/

package com.meapsoft.visualizer;

import java.awt.Graphics;

import javax.swing.DefaultBoundedRangeModel;
import javax.swing.JFrame;

import com.meapsoft.EDLFile;
import com.meapsoft.FeatChunk;
import com.meapsoft.FeatFile;
import com.meapsoft.disgraced.ColorMap;

/**
*
* @author douglas@music.columbia.edu
*
*/

public class SingleFeatureLineGraphPanel extends SingleFeaturePanel
{

  private static final long serialVersionUID = 1L;
  ColorMap colormap;

  public SingleFeatureLineGraphPanel()
  {
    numDrawableFeatures = -1;
  }

  public SingleFeatureLineGraphPanel(String[] args)
  {
    super();
   
    parseCommands(args);
   
    numDrawableFeatures = -1;
    setProgress(new DefaultBoundedRangeModel());
   
    String fileName = args[args.length - 2];
    FeatFile fF = null;
    EDLFile eF = null;
   
    String featName = args[args.length-1];
   
    try
    {
      fF = new FeatFile(fileName);
      fF.readFile();
     
      if (edlFileName != null)
      {
        System.out.println("making EDLFile from " + edlFileName);
        eF = new EDLFile(edlFileName);
        eF.readFile();
      }
       
    }
    catch(Exception e)
    {
      e.printStackTrace();
      return;
    }

    if (initialize(fF, eF, featName) == -1)
    {
      System.out.println("hmm, something wrong, bailing.");
      return;
    }
   
    repaint();
   
    if (pngOutputFileName != null)
    {
      writeImageToPNG(pngOutputFileName);
      System.exit(0);
    }
  }
 
  public int initialize(FeatFile featFile, String featureName)
  {
    int error = initialize(featFile, null, featureName);
    if (error < 0)
      return error;

    colormap = ColorMap.getJet(featureSize);

    return 1;
  }

  @Override
  public int initialize(FeatFile featFile, EDLFile edlFile, String featureName)
  {
    int error = initialize(featFile, edlFile, featureName);
    if (error < 0)
      return error;

    colormap = ColorMap.getJet(featureSize);

    return 1;
  }
 
  public String getDisplayType()
  {
    return "LineGraph";
  }

  // stub class, implemented from abstract parent class
  public void updateData()
  {

  }

  public void drawData(Graphics g)
  {   
    double zoomMulti = (zoomLevel * 4.0) / 4.0;
    int w = (int) (this.getWidth() * zoomMulti);
    int h = this.getHeight();

    double yScaler = h / featureRange;
    double xScaler = w / timeRange;

    g.setColor(bgColor);
    g.fillRect(0, 0, w, h);

    g.setColor(fGColor);

    for (int j = 0; j < featureSize; j++)
    {
      int xPrev = 0;
      int yPrev = 0;

      if (featureSize > 1)
        g.setColor(colormap.table[j]);
      else
        g.setColor(fGColor);

      double localFirstEventTime = ((FeatChunk) events.get(firstChunkToDraw)).startTime;

      int x = 0;

     
      for (int i = firstChunkToDraw; i < numChunks && x < getWidth(); i++)
      {
        FeatChunk fC = (FeatChunk) events.get(i);

        double dX = ((fC.startTime - localFirstEventTime) * xScaler);
        x = (int) dX;
        int xMid = (int)(dX + (fC.length * xScaler * 0.5));
        // adjust to zero

        //double[] features = featFile.getFeatureByName(featureName, i);
        double[] features = fC.getFeatureByName(featureName);
        double dataPoint = features[j] - lowestValue;

        int y = h - (int) (dataPoint * yScaler);

        // don't draw the first one to avoid false line
        if (i == firstChunkToDraw)
        {
          g.drawLine(0, y, xMid, y);
        }
        else
        {
          g.drawLine(xPrev, yPrev, xMid, y);
        }
       
        //do last little segment on last chunk
        if (i == numChunks - 1)
        {
          g.drawLine(xMid, y, w, y);
        }
         
        xPrev = xMid;
        yPrev = y;
      }
    }
  }

  public static void printUsageAndExit()
  {
    System.out
        .println("Usage: SingleFeatureLineGraphPanel [-options] featuresFile.feat FeatureName \n\n"
            + "  where options include:\n"
            + getStandardUsage()
            );
    System.out.println();
    System.exit(0);
  }
 
  public static void main(String[] args)
  {
    if (args.length < 2)
    {
      printUsageAndExit();
    }
   
    SingleFeatureLineGraphPanel sFP = new SingleFeatureLineGraphPanel(args);

    if (sFP.pngOutputFileName == null)
    {
      JFrame frame = new JFrame("SingleFeatureLineGraphPanel");
      frame.setContentPane(sFP);
      frame.pack();
      //frame.setBounds(100, 100, 600, 400);
      frame.setVisible(true);
    }
  }
}
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