Clipper.java

package org.geogebra.common.util.clipper;

import org.geogebra.common.util.clipper.Point.DoublePoint;

public interface Clipper {
	public enum ClipType {
		INTERSECTION, UNION, DIFFERENCE, XOR
	}

	enum Direction {
		RIGHT_TO_LEFT, LEFT_TO_RIGHT
	}

	public enum EndType {
		CLOSED_POLYGON, CLOSED_LINE, OPEN_BUTT, OPEN_SQUARE, OPEN_ROUND
	}

	public enum JoinType {
		SQUARE, ROUND, MITER
	}

	public enum PolyFillType {
		EVEN_ODD, NON_ZERO, POSITIVE, NEGATIVE
	}

	public enum PolyType {
		SUBJECT, CLIP
	}

	/**
	 * modified to be compatible with double
	 */
	public interface ZFillCallback {
		void zFill(DoublePoint bot1, DoublePoint top1, DoublePoint bot2,
				DoublePoint top2, DoublePoint pt);
	}

	// InitOptions that can be passed to the constructor ...
	public final static int REVERSE_SOLUTION = 1;

	public final static int STRICTLY_SIMPLE = 2;

	public final static int PRESERVE_COLINEAR = 4;

	boolean addPath(Path pg, PolyType polyType, boolean Closed);

	boolean addPaths(Paths ppg, PolyType polyType, boolean closed);

	void clear();

	boolean execute(ClipType clipType, Paths solution);

	boolean execute(ClipType clipType, Paths solution,
			PolyFillType subjFillType, PolyFillType clipFillType);

	boolean execute(ClipType clipType, PolyTree polytree);

	public boolean execute(ClipType clipType, PolyTree polytree,
			PolyFillType subjFillType, PolyFillType clipFillType);
}