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iText, a free Java-PDF library
/*
* $Id: c838b8b7b7d38b1fa774d66ea70b97700be889c1 $
*
* This file is part of the iText (R) project.
* Copyright (c) 2014-2015 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*
*
* This class is based on the C# open source freeware library Clipper:
* http://www.angusj.com/delphi/clipper.php
* The original classes were distributed under the Boost Software License:
*
* Freeware for both open source and commercial applications
* Copyright 2010-2014 Angus Johnson
* Boost Software License - Version 1.0 - August 17th, 2003
*
* Permission is hereby granted, free of charge, to any person or organization
* obtaining a copy of the software and accompanying documentation covered by
* this license (the "Software") to use, reproduce, display, distribute,
* execute, and transmit the Software, and to prepare derivative works of the
* Software, and to permit third-parties to whom the Software is furnished to
* do so, all subject to the following:
*
* The copyright notices in the Software and this entire statement, including
* the above license grant, this restriction and the following disclaimer,
* must be included in all copies of the Software, in whole or in part, and
* all derivative works of the Software, unless such copies or derivative
* works are solely in the form of machine-executable object code generated by
* a source language processor.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
* SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
* FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package com.itextpdf.text.pdf.parser.clipper;
import com.itextpdf.text.pdf.parser.clipper.Point.LongPoint;
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 {
BEVEL, ROUND, MITER
};
public enum PolyFillType {
EVEN_ODD, NON_ZERO, POSITIVE, NEGATIVE
};
public enum PolyType {
SUBJECT, CLIP
};
public interface ZFillCallback {
void zFill( LongPoint bot1, LongPoint top1, LongPoint bot2, LongPoint top2, LongPoint 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 );
}