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//---PACKAGE DECLARATION--- |
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//---IMPORTS--- |
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import java.io.*; |
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import java.awt.*; |
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import java.awt.image.*; |
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import Acme.JPM.Encoders.*; |
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/** |
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* GraphMaker - Used to create and ultimately output a gif image. |
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* This class accepts a PlotData object in the constructor, yet has |
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* the filename, size, etc. passed in a separate method - this is so |
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* that the same PlotData can easily be used to create several graphs |
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* of differing filenames, sizes, etc... |
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* |
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* @author $Author: pjm2 $ |
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* @version $Id: $ |
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*/ |
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public class GraphMaker { |
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//---FINAL ATTRIBUTES--- |
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: $"; |
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private final int _fg = 0; // black |
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private final int _bg = 16777215; // white |
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private final int _gradeColour = 13421823; // i-scream blue ;) |
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//---STATIC METHODS--- |
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//---CONSTRUCTORS--- |
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public GraphMaker(PlotData pd){ |
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_pd = pd; |
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} |
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//---PUBLIC METHODS--- |
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public void writeGraph(String filename, int width, int height, int grade){ |
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//Uncomment this to find out the integer values for certain colours. |
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//int rgb = 0*256*256 + 0*256 + 0; |
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//System.out.println ((rgb & 0xff00ff00) | ((rgb & 0xff0000) >> 16) | ((rgb & 0xff) << 16)); |
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BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); |
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_pd.drawGraph(img, width, height, grade, _fg, _bg, _gradeColour); |
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try { |
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FileOutputStream fos = new FileOutputStream(new File(filename)); |
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GifEncoder encoder = new GifEncoder(img, fos); |
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encoder.encode(); |
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fos.flush(); |
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fos.close(); |
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System.out.println(" - Written "+width+"x"+height+" graph file"); |
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} |
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catch(Exception e){ |
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System.out.println("Could not write the .gif file."); |
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} |
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//g.dispose(); |
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//frame.dispose(); |
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} |
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
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} |
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//---PRIVATE METHODS--- |
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//---ACCESSOR/MUTATOR METHODS--- |
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//---ATTRIBUTES--- |
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private PlotData _pd; |
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//---STATIC ATTRIBUTES--- |
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} |
