import java.awt.*;

public class SplineApplet extends BufferedApplet {

	private int pointToMove = -1;
	private boolean drawCircles = true, 
			drawGuideOutline = true, 
			drawText = true, 
			closedCurve = true,
			smootheCurve = true,
			drawCurve = true;

	PolyBezier pb = new PolyBezier(2, closedCurve, smootheCurve, 200);


	public void render(Graphics g) {

		if (damage) {
			g.setColor(Color.white);
			g.fillRect(0, 0, bounds().width, bounds().height);

			g.setColor(Color.black);

			if (drawGuideOutline)
				pb.drawGuidelines(g);

			if (drawCircles)
				pb.drawPoints(g);

			if (drawText)
				pb.writeCoordinates(g);

			if (drawCurve)
				pb.drawCurve(g);

		}
	}

	public boolean keyDown(Event e, int key) {
		switch (key) {
			case '1':
				pb = new PolyBezier(1, closedCurve, smootheCurve, 200);
				break;
			case '2':
				pb = new PolyBezier(2, closedCurve, smootheCurve, 200);
				break;
			case '3':
				pb = new PolyBezier(3, closedCurve, smootheCurve, 200);
				break;
			case '4':
				pb = new PolyBezier(4, closedCurve, smootheCurve, 200);
				break;
			case '5':
				pb = new PolyBezier(5, closedCurve, smootheCurve, 200);
				break;
			case '6':
				pb = new PolyBezier(6, closedCurve, smootheCurve, 200);
				break;
			case '7':
				pb = new PolyBezier(7, closedCurve, smootheCurve, 200);
				break;
			case '8':
				pb = new PolyBezier(8, closedCurve, smootheCurve, 200);
				break;
			case '9':
				pb = new PolyBezier(9, closedCurve, smootheCurve, 200);
				break;
			case '0':
				pb = new PolyBezier(10, closedCurve, smootheCurve, 200);
				break;
			case 'h':
			case 'H':
				pb.smootheEdges();	
				break;
			case 's':
			case 'S':
				drawCurve = (drawCurve ? false : true);
				break;
			case 'm':
			case 'M':
				smootheCurve = (smootheCurve ? false : true);
				pb.setSmoothe(smootheCurve);
				break;
			case 'o':
			case 'O':
				closedCurve = (closedCurve ? false : true);
				pb.setClosed(closedCurve);
				break;
			case 'r':
			case 'R':
				pb.initCurves();
				break;
			case 'c':
			case 'C':
				drawCircles = (drawCircles ? false : true);
				break;
			case 'g':
			case 'G':
				drawGuideOutline = (drawGuideOutline ? false : true);
				break;
			case 't':
			case 'T':
				drawText = (drawText ? false : true);
				break;
			case 'i':
			case 'I':
				drawCircles = (drawCircles ? false : true);
				drawGuideOutline = (drawGuideOutline ? false : true);
				drawText = (drawText ? false : true);
				break;
			case 'a':
			case 'A':
				boolean set;
				if (drawCircles) set = false;
				else set = true;
				drawCircles = set;
				drawGuideOutline = set;
				drawText = set;
				break;
		}

		damage = true;
		return true;
	}
	

	public boolean mouseDrag(Event e, int x, int y) {
		if (pointToMove != -1) {
			pb.setPoint(pointToMove, x, y);

			damage = true;
		}

		return true;
	}
	
	public boolean mouseDown(Event e, int x, int y) {
		int[] point;
		for (int i = 0; i < (4 * pb.getNumCurves()); i++) {
			point = pb.getPoint(i);
			if ( point[0] - 5 < x && x < point[0] + 5 && point[1] - 5 < y && y < point[1] + 5)
				pointToMove = i;
		}

		System.out.println("Point grabbed: " + pointToMove);
			
		damage = true;
		return true;
	}
	
	public boolean mouseUp(Event e, int x, int y) {
		pointToMove = -1;
		damage = true;
		return true;
	}
}