[jmsl] ScorePainter problem

[jmsl at music.columbia.edu]

Hi Peter

Thanks for the working code example.  It helps me troubleshoot and 
reveals problems quickly.

Couple of things. ScorePainter already has a Score class variable, so 
you do not want to re-declare that in the subclass.
But since you are providing your own ScorePainter (something that was 
not anticipated in the original API), the score needs to be handed a 
reference to it as well, since Score is not creating its own.  Ugly, sorry.

So I paste a complete working example below.  BUT it will not work until 
you get a new prerelease which makes score.setScorePainter() public.  
That's coming your way soon

Thanks
Nick Didkovsky

package com.petermcculloch.megalo.graphics;

import java.awt.Graphics;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;

import com.didkovsky.portview.swing.ViewFactorySwing;
import com.softsynth.jmsl.JMSL;
import com.softsynth.jmsl.score.*;

public class ScorePainterMegalo extends ScorePainter {

    // Score score; no! superclass already has score class variable

    public ScorePainterMegalo(Score score) {
        super(score);
        score.setScorePainter(this);    // !!! ugly but necessary
        // this.score = score; no! superclass already has score class 
variable
    }

    // @Override
    public void render(Graphics g, double playTime, boolean b) {
        super.render(g, playTime, b);
        g.drawLine(0, 0, 200, 200);
        System.out.println("Called render...");
    }

    public static void main(String args[]) {
        JFrame frame = new JFrame();
        JMSL.setViewFactory(new ViewFactorySwing());
        Score.useSharedCanvas(false); // !!!       
        ScoreCanvas canvas = new 
ScoreCanvasFactory().createScoreCanvas(500, 500);
        Score score = new Score(2, 700, 700, "Megalo Sabado", canvas);
        ScorePainterMegalo painter = new ScorePainterMegalo(score);
       
        score.addMeasures(10, 3, 4);
        score.setCurrentMeasureNumber(0);
        score.setCurrentStaffNumber(0);
        score.setCurrentTrackNumber(0);
        score.addNote(1., 60., 1., 1.);

        frame.add(((ScoreCanvasSwing) canvas).getComponent());

        frame.addWindowStateListener(new WindowAdapter() {
            // @Override
            public void windowClosed(WindowEvent e) {
                JMSL.closeMusicDevices();
                System.exit(0);
            }
        });

        frame.pack();

        score.ownCanvas();

        frame.setVisible(true);

        System.out.println("ScorePainter:\t" + 
score.getScorePainter().getClass().toString());

    }

}


jmsl at music.columbia.edu wrote:
>
> Hi all,
>
> I'm trying to test a new ScorePainter, and I can't get it to install.  
> When I run it I get:
> ScorePainter:    class com.softsynth.jmsl.score.ScorePainter
>
>
> Here's a demonstration of the problem.  Am I missing something in the 
> rendering sequence for a score?
>
> thanks,
> Peter McCulloch
>
> package com.petermcculloch.megalo.graphics;
>
> import java.awt.Graphics;
> import java.awt.event.WindowAdapter;
> import java.awt.event.WindowEvent;
>
> import javax.swing.JFrame;
>
> import com.didkovsky.portview.swing.ViewFactorySwing;
> import com.softsynth.jmsl.JMSL;
> import com.softsynth.jmsl.score.Score;
> import com.softsynth.jmsl.score.ScoreCanvasSwing;
> import com.softsynth.jmsl.score.ScorePainter;
>
> public class ScorePainterMegalo extends ScorePainter {
>
>     Score    score;
>
>     public ScorePainterMegalo(Score score) {
>         super(score);
>         this.score = score;
>     }
>
>     @Override
>     public void render(Graphics g, double playTime, boolean b) {
>         super.render(g, playTime, b);
>         System.out.println("Called render...");
>     }
>
>     public static void main(String args[]) {
>
>         JFrame frame = new JFrame();
>
>         JMSL.setViewFactory(new ViewFactorySwing());
>
>         // Score.useSharedCanvas(false);
>
>         Score score = new Score(2, 700, 700);
>
>         score.addMeasures(10, 3, 4);
>
>         score.setCurrentMeasureNumber(0);
>         score.setCurrentStaffNumber(0);
>         score.setCurrentTrackNumber(0);
>         score.addNote(1., 60., 1., 1.);
>
>         ScorePainterMegalo painter = new ScorePainterMegalo(score);
>
>         ScoreCanvasSwing canvas = null;
>
>        
>         // if true, blank canvas, but same scorepainter.  If false, 
> score canvas and same scorepainter
>         boolean createNew = false;
>
>         if (createNew) {
>             canvas = new ScoreCanvasSwing(500, 500);
>
>             score.setScoreCanvas(canvas);
>             canvas.setScorePainter(painter);
>             score.getScoreCanvas().setScorePainter(painter);
>         } else {
>
>             score.getScoreCanvas().setScorePainter(painter);
>
>             canvas = (ScoreCanvasSwing) score.getScoreCanvas();
>
>         }
>
>         frame.add(((ScoreCanvasSwing) canvas).getComponent());
>
>         frame.addWindowStateListener(new WindowAdapter() {
>             @Override
>             public void windowClosed(WindowEvent e) {
>                 JMSL.closeMusicDevices();
>                 System.exit(0);
>             }
>         });
>
>         frame.pack();
>
>         score.ownCanvas();
>
>         frame.setVisible(true);
>
>         System.out.println("ScorePainter:\t" + 
> score.getScorePainter().getClass().toString());
>
>     }
>
> }
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