package processpathtest;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.io.File;
import javax.imageio.ImageIO;
import sun.java2d.loops.*;
import sun.java2d.pipe.*;
import sun.java2d.*;

public class ProcessPathTest {

    public static void main(String[] args) throws Exception {
        //prepare output image
        BufferedImage bimg = new BufferedImage(256, 256, BufferedImage.TYPE_INT_BGR);
        Graphics2D g2d = (Graphics2D) bimg.getGraphics();
        g2d.setColor(Color.WHITE);
        g2d.fillRect(0, 0, bimg.getWidth(), bimg.getHeight());
        g2d.setColor(Color.BLACK);

        // create test geometry
        Rectangle2D rect = new Rectangle2D.Double();
        rect.setRect(0.5, 0.50, 24, 24);
        Path2D.Float floatPath = new Path2D.Float(rect);

        //call test routines
        testProcessPath(floatPath, g2d);
        testShapeSpanIterator(floatPath, g2d);

        ImageIO.write(bimg, "png", new File("res.png"));
    }

     private static void testShapeSpanIterator(Path2D.Float floatPath, Graphics2D g2d) {
             ShapeSpanIterator ssi = LoopPipe.getFillSSI((SunGraphics2D) g2d);
        ssi.setOutputArea(new Rectangle(0, 0, 1024, 1024));
        PathIterator pi = floatPath.getPathIterator(AffineTransform.getTranslateInstance(0, 0));

        ssi.appendPath(pi);
        int[] spanBox = new int[4];
            while (ssi.nextSpan(spanBox)) {
                int x = spanBox[0] + 10;
                int y = spanBox[1] + 50;
                int width =  spanBox[2] - spanBox[0];
                int height = spanBox[3] - spanBox[1];

                System.out.println("span: "+x+"/"+y+ " - "+width+"/"+height);
                g2d.fillRect(x, y, width, height);
            }
     }

     private static void testProcessPath(Path2D.Float floatPath, final Graphics2D g2d) {
                ProcessPath.fillPath(new ProcessPath.DrawHandler(0, 0, 1024, 1024) {

                void validate(SunGraphics2D sg2d) {
                    Region clip = sg2d.getCompClip();
                    setBounds(clip.getLoX(), clip.getLoY(),
                              clip.getHiX(), clip.getHiY(), sg2d.strokeHint);
                }

                public void drawLine(int x1, int y1, int x2, int y2) {
                    System.out.println("drawline: "+x1+"/"+y1+ " - "+x2+"/"+y2);
                    g2d.drawLine(x1, y1, x2, y2);
                }

                public void drawPixel(int x, int y) {
                    System.out.println("drawpixel: "+x+"/"+y);
                    g2d.fillRect(x, y, 1, 1);
                }

                public void drawScanline(int x1, int x2, int y) {
                    System.out.println("drawscanline: "+x1+"/"+x2+ " - "+y);
                    g2d.fillRect(x1, y, x2 - x1 + 1, 1);
                }
            }, floatPath, 10, 10);
     }
}