package jmslexamples;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.io.OutputStream;

import com.softsynth.jmsl.score.Score;
import com.softsynth.jmsl.score.ScoreFrame;
import com.softsynth.jmsl.score.util.SAPScoreWriter;
import com.softsynth.jmsl.score.util.SAPScoreWriterDialog;

/**
 * Export a JScore to a TextArea in San Andreas Press's SCORE file format <br>
 * 
 * Enter notes into the score, then select menu Score -> Export -> San Andreas
 * Score and see output in TextArea
 * 
 * @author Nick Didkovsky, copyright 2000 Nick Didkovsky
 */
public class ScoreExportSAPDemo extends java.applet.Applet implements ActionListener {

    Score score;
    SAPScoreFrame scoreFrame;
    int numStaves;
    public static TextArea textArea;
    Button visibleButton;

    public void init() {
//        JMSL.setIsApplet(true);
        textArea = new TextArea(20, 80);
        visibleButton = new Button("Show Score");
        visibleButton.addActionListener(this);
        setLayout(new BorderLayout());
    }

    public void start() {
        add("North", textArea);
        Panel p = new Panel();
        p.setLayout(new FlowLayout());
        p.add(new Label("Your score has been opened in a Frame outside this browser"));
        p.add(visibleButton);
        add("South", p);

        String msg = "Enter some notes in the JScore window, then select Score -> Export San Andreas Press.\n";
        msg += "The SCORE output will appear in this TextArea.  From here, you can copy and paste the output to Notepad,\n";
        msg += "save to disk, and import into SCORE (res inputfile.txt)\n\n";
        msg += "The standalone JScore application saves this output to a file directly.  Applets (like this one) are not permitted\n";
        msg += "to access your local drive for saving, so we use this TextArea instead for output";
        textArea.setText(msg);

        int w = 600;
        int h = 400;
        numStaves = 2;

        score = new Score(numStaves, w, h, "JMSL Score Demo by Nick Didkovsky, copyright 2000 Nick Didkovsky");
        score.addMeasure();
        scoreFrame = new SAPScoreFrame("JMSL Score Demo by Nick Didkovsky, copyright 2000 Nick Didkovsky");
        scoreFrame.addScore(score);
        scoreFrame.noSound();
        score.getScoreLayoutManager().setZoom(0.5);
        score.getControlPanel().setZoom(0.5);

        // force netscape to size window ok
        scoreFrame.setSize(980, 500);
        //	scoreFrame.pack();
        scoreFrame.setVisible(true);
        
    }

    public void actionPerformed(ActionEvent e) {
        scoreFrame.setVisible(true);
        //		scoreFrame.show();
    }

    public ScoreFrame getScoreFrame() {
        return scoreFrame;
    }

    public void stop() {
        removeAll();
        scoreFrame.setVisible(false);
        scoreFrame.dispose();
    }

}

class SAPScoreFrame extends ScoreFrame {

    public SAPScoreFrame(String title) {
        super(title);
    }

    public void handleExportScoreMUS() {
        try {
            java.io.PrintWriter out = new java.io.PrintWriter(new TextAreaOutputStream());
            ScoreExportSAPDemo.textArea.setText("");
            SAPScoreWriter scoreWriter = new SAPScoreWriter(getCurrentScore(), out, getTemplateName(), getMusPrefix());
            SAPScoreWriterDialog dialog = new SAPScoreWriterDialog((Frame) getComponent(), scoreWriter);
            dialog.setVisible(true);
            scoreWriter.write();
            out.flush();
            out.close();
            if (scoreWriter.getGoAhead()) {
                alert("JScore exported successfully, see TextArea in applet");
                setTemplateName(scoreWriter.getTemplateName());
                setMusPrefix(scoreWriter.getMusPrefix());
            }
        } catch (java.io.IOException e) {
            alert("Trouble: " + e);
        }
    }

}

class TextAreaOutputStream extends OutputStream {

    StringBuffer buf;

    public TextAreaOutputStream() throws IOException {
        super();
        buf = new StringBuffer();
    }

    public void write(int b) throws IOException {
        buf.append("" + (char) b);
    }

    public void flush() {
        System.out.println("FLUSH");
        ScoreExportSAPDemo.textArea.setText(buf.toString());
    }

}