package jmsltestsuite;

import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Vector;

import com.softsynth.jmsl.score.Score;
import com.softsynth.jmsl.score.ScoreCanvas;
import com.softsynth.jmsl.score.ScoreCanvasListener;

/**
 * Use the new scoreCanvasDragged() callback in ScoreCanvasListener to draw onto a Score with the
 * mouse. Hold the ALT key down and drag the mouse around.
 * 
 * @author Nick Didkovsky (c) 2006 All Rights reserved
 * 
 */
public class DrawWithMouseOnScore {

    public static void main(String[] args) {
        Score score = new Score(2, 800, 400);
        score.addMeasure();

        Frame sf = new Frame("Hold the ALT key down and drag the mouse around. N Didkovsky 12/06");
        sf.add(score.getScoreCanvas().getComponent());
        sf.pack();
        sf.setVisible(true);
        sf.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        score.getScoreCanvas().addScoreCanvasListener(new ScoreCanvasListener() {

            boolean dragging = false;
            Vector pointsToDraw = new Vector();

            public void scoreCanvasClicked(ScoreCanvas canvas, Point p, MouseEvent e) {
                System.out.println("canvas clicked at " + e);
            }

            public void scoreCanvasRectangleSelected(ScoreCanvas canvas, Point p1, Point p2) {
                System.out.println("score rectangle selected " + p1 + ", " + p2);
            }

            public void scoreCanvasReady(ScoreCanvas canvas) {
                // TODO Auto-generated method stub

            }

            public void scoreCanvasKeyTyped(ScoreCanvas canvas, KeyEvent keyEvent) {
                System.out.println("keyTyped" + keyEvent);

            }

            public void scoreCanvasKeyReleased(ScoreCanvas canvas, KeyEvent keyEvent) {
                // TODO Auto-generated method stub

            }

            public void scoreCanvasDisplayedImageReady(Score score, ScoreCanvas canvas, Image displayedImage) {
                System.out.println("scoreCanvasDisplayedIMageReady");
                Graphics g = displayedImage.getGraphics();
                if (dragging && pointsToDraw != null) {
                    for (int i = 0; i < pointsToDraw.size() - 1; i++) {
                        Point p1 = (Point) pointsToDraw.elementAt(i);
                        Point p2 = (Point) pointsToDraw.elementAt(i + 1);
                        g.drawLine(p1.x, p1.y, p2.x, p2.y);
                    }
                }

            }

            public void scoreCanvasDragged(ScoreCanvas canvas, Point p, MouseEvent e) {
                System.out.println("Score canvas dragged " + e + ", " + p);
                if ((e.getModifiers() & InputEvent.ALT_MASK) != 0) {
                    dragging = true;
                    pointsToDraw.addElement(new Point(p));
                }
            }

            public void scoreCanvasReleased(ScoreCanvas canvas, Point p, MouseEvent e) {
                System.out.println("Score canvas released " + e + ", " + p);
                dragging = false;
            }

            public void scoreCanvasPressed(ScoreCanvas canvas, Point p, MouseEvent e) {
                System.out.println("Mouse pressed");
                pointsToDraw.removeAllElements();

            }
        });

        score.getScoreCanvas().addKeyListener(new KeyListener() {

            public void keyTyped(KeyEvent arg0) {
                System.out.println("keyTyped" + arg0);

            }

            public void keyPressed(KeyEvent arg0) {
                System.out.println("keyPressed" + arg0);

            }

            public void keyReleased(KeyEvent arg0) {
                System.out.println("keyReleased" + arg0);

            }
        });
    }
}