itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

⏎ com/itextpdf/awt/geom/Line2D.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  This code was originally part of the Apache Harmony project.
 *  The Apache Harmony project has been discontinued.
 *  That's why we imported the code into iText.
 */
/**
 * @author Denis M. Kishenko
 */
package com.itextpdf.awt.geom;

import java.util.NoSuchElementException;

import com.itextpdf.awt.geom.misc.Messages;

public abstract class Line2D implements Shape, Cloneable {

    public static class Float extends Line2D {

        public float x1;
        public float y1;
        public float x2;
        public float y2;

        public Float() {
        }

        public Float(float x1, float y1, float x2, float y2) {
            setLine(x1, y1, x2, y2);
        }

        public Float(Point2D p1, Point2D p2) {
            setLine(p1, p2);
        }

        @Override
        public double getX1() {
            return x1;
        }

        @Override
        public double getY1() {
            return y1;
        }

        @Override
        public double getX2() {
            return x2;
        }

        @Override
        public double getY2() {
            return y2;
        }

        @Override
        public Point2D getP1() {
            return new Point2D.Float(x1, y1);
        }

        @Override
        public Point2D getP2() {
            return new Point2D.Float(x2, y2);
        }

        @Override
        public void setLine(double x1, double y1, double x2, double y2) {
            this.x1 = (float)x1;
            this.y1 = (float)y1;
            this.x2 = (float)x2;
            this.y2 = (float)y2;
        }

        public void setLine(float x1, float y1, float x2, float y2) {
            this.x1 = x1;
            this.y1 = y1;
            this.x2 = x2;
            this.y2 = y2;
        }

        public Rectangle2D getBounds2D() {
            float rx, ry, rw, rh;
            if (x1 < x2) {
                rx = x1;
                rw = x2 - x1;
            } else {
                rx = x2;
                rw = x1 - x2;
            }
            if (y1 < y2) {
                ry = y1;
                rh = y2 - y1;
            } else {
                ry = y2;
                rh = y1 - y2;
            }
            return new Rectangle2D.Float(rx, ry, rw, rh);
        }
    }

    public static class Double extends Line2D {

        public double x1;
        public double y1;
        public double x2;
        public double y2;

        public Double() {
        }

        public Double(double x1, double y1, double x2, double y2) {
            setLine(x1, y1, x2, y2);
        }

        public Double(Point2D p1, Point2D p2) {
            setLine(p1, p2);
        }

        @Override
        public double getX1() {
            return x1;
        }

        @Override
        public double getY1() {
            return y1;
        }

        @Override
        public double getX2() {
            return x2;
        }

        @Override
        public double getY2() {
            return y2;
        }

        @Override
        public Point2D getP1() {
            return new Point2D.Double(x1, y1);
        }

        @Override
        public Point2D getP2() {
            return new Point2D.Double(x2, y2);
        }

        @Override
        public void setLine(double x1, double y1, double x2, double y2) {
            this.x1 = x1;
            this.y1 = y1;
            this.x2 = x2;
            this.y2 = y2;
        }

        public Rectangle2D getBounds2D() {
            double rx, ry, rw, rh;
            if (x1 < x2) {
                rx = x1;
                rw = x2 - x1;
            } else {
                rx = x2;
                rw = x1 - x2;
            }
            if (y1 < y2) {
                ry = y1;
                rh = y2 - y1;
            } else {
                ry = y2;
                rh = y1 - y2;
            }
            return new Rectangle2D.Double(rx, ry, rw, rh);
        }
    }

    /*
     * Line2D path iterator 
     */
    class Iterator implements PathIterator {

        /**
         * The x coordinate of the start line point
         */
        double x1;
        
        /**
         * The y coordinate of the start line point
         */
        double y1;
        
        /**
         * The x coordinate of the end line point
         */
        double x2;
        
        /**
         * The y coordinate of the end line point
         */
        double y2;

        /**
         * The path iterator transformation
         */
        AffineTransform t;

        /**
         * The current segmenet index
         */
        int index;

        /**
         * Constructs a new Line2D.Iterator for given line and transformation
         * @param l - the source Line2D object
         * @param at - the AffineTransform object to apply rectangle path
         */
        Iterator(Line2D l, AffineTransform at) {
            this.x1 = l.getX1();
            this.y1 = l.getY1();
            this.x2 = l.getX2();
            this.y2 = l.getY2();
            this.t = at;
        }

        public int getWindingRule() {
            return WIND_NON_ZERO;
        }

        public boolean isDone() {
            return index > 1;
        }

        public void next() {
            index++;
        }

        public int currentSegment(double[] coords) {
            if (isDone()) {
                // awt.4B=Iterator out of bounds
                throw new NoSuchElementException(Messages.getString("awt.4B")); //$NON-NLS-1$
            }
            int type;
            if (index == 0) {
                type = SEG_MOVETO;
                coords[0] = x1;
                coords[1] = y1;
            } else {
                type = SEG_LINETO;
                coords[0] = x2;
                coords[1] = y2;
            }
            if (t != null) {
                t.transform(coords, 0, coords, 0, 1);
            }
            return type;
        }

        public int currentSegment(float[] coords) {
            if (isDone()) {
                // awt.4B=Iterator out of bounds
                throw new NoSuchElementException(Messages.getString("awt.4B")); //$NON-NLS-1$
            }
            int type;
            if (index == 0) {
                type = SEG_MOVETO;
                coords[0] = (float)x1;
                coords[1] = (float)y1;
            } else {
                type = SEG_LINETO;
                coords[0] = (float)x2;
                coords[1] = (float)y2;
            }
            if (t != null) {
                t.transform(coords, 0, coords, 0, 1);
            }
            return type;
        }

    }

    protected Line2D() {
    }

    public abstract double getX1();

    public abstract double getY1();

    public abstract double getX2();

    public abstract double getY2();

    public abstract Point2D getP1();

    public abstract Point2D getP2();

    public abstract void setLine(double x1, double y1, double x2, double y2);

    public void setLine(Point2D p1, Point2D p2) {
        setLine(p1.getX(), p1.getY(), p2.getX(), p2.getY());
    }

    public void setLine(Line2D line) {
        setLine(line.getX1(), line.getY1(), line.getX2(), line.getY2());
    }

    public Rectangle getBounds() {
        return getBounds2D().getBounds();
    }

    public static int relativeCCW(double x1, double y1, double x2, double y2, double px, double py) {
        /*
         * A = (x2-x1, y2-y1) P = (px-x1, py-y1)
         */
        x2 -= x1;
        y2 -= y1;
        px -= x1;
        py -= y1;
        double t = px * y2 - py * x2; // PxA
        if (t == 0.0) {
            t = px * x2 + py * y2; // P*A
            if (t > 0.0) {
                px -= x2; // B-A
                py -= y2;
                t = px * x2 + py * y2; // (P-A)*A
                if (t < 0.0) {
                    t = 0.0;
                }
            }
        }

        return t < 0.0 ? -1 : (t > 0.0 ? 1 : 0);
    }

    public int relativeCCW(double px, double py) {
        return relativeCCW(getX1(), getY1(), getX2(), getY2(), px, py);
    }

    public int relativeCCW(Point2D p) {
        return relativeCCW(getX1(), getY1(), getX2(), getY2(), p.getX(), p.getY());
    }

    public static boolean linesIntersect(double x1, double y1, double x2,
            double y2, double x3, double y3, double x4, double y4)
    {
        /*
         * A = (x2-x1, y2-y1) B = (x3-x1, y3-y1) C = (x4-x1, y4-y1) D = (x4-x3,
         * y4-y3) = C-B E = (x1-x3, y1-y3) = -B F = (x2-x3, y2-y3) = A-B
         *
         * Result is ((AxB) * (AxC) <=0) and ((DxE) * (DxF) <= 0)
         *
         * DxE = (C-B)x(-B) = BxB-CxB = BxC DxF = (C-B)x(A-B) = CxA-CxB-BxA+BxB =
         * AxB+BxC-AxC
         */

        x2 -= x1; // A
        y2 -= y1;
        x3 -= x1; // B
        y3 -= y1;
        x4 -= x1; // C
        y4 -= y1;

        double AvB = x2 * y3 - x3 * y2;
        double AvC = x2 * y4 - x4 * y2;

        // Online
        if (AvB == 0.0 && AvC == 0.0) {
            if (x2 != 0.0) {
                return
                    (x4 * x3 <= 0.0) ||
                    ((x3 * x2 >= 0.0) &&
                     (x2 > 0.0 ? x3 <= x2 || x4 <= x2 : x3 >= x2 || x4 >= x2));
            }
            if (y2 != 0.0) {
                return
                    (y4 * y3 <= 0.0) ||
                    ((y3 * y2 >= 0.0) &&
                     (y2 > 0.0 ? y3 <= y2 || y4 <= y2 : y3 >= y2 || y4 >= y2));
            }
            return false;
        }

        double BvC = x3 * y4 - x4 * y3;

        return (AvB * AvC <= 0.0) && (BvC * (AvB + BvC - AvC) <= 0.0);
    }

    public boolean intersectsLine(double x1, double y1, double x2, double y2) {
        return linesIntersect(x1, y1, x2, y2, getX1(), getY1(), getX2(), getY2());
    }

    public boolean intersectsLine(Line2D l) {
        return linesIntersect(l.getX1(), l.getY1(), l.getX2(), l.getY2(), getX1(), getY1(), getX2(), getY2());
    }

    public static double ptSegDistSq(double x1, double y1, double x2, double y2, double px, double py) {
        /*
         * A = (x2 - x1, y2 - y1) P = (px - x1, py - y1)
         */
        x2 -= x1; // A = (x2, y2)
        y2 -= y1;
        px -= x1; // P = (px, py)
        py -= y1;
        double dist;
        if (px * x2 + py * y2 <= 0.0) { // P*A
            dist = px * px + py * py;
        } else {
            px = x2 - px; // P = A - P = (x2 - px, y2 - py)
            py = y2 - py;
            if (px * x2 + py * y2 <= 0.0) { // P*A
                dist = px * px + py * py;
            } else {
                dist = px * y2 - py * x2;
                dist = dist * dist / (x2 * x2 + y2 * y2); // pxA/|A|
            }
        }
        if (dist < 0) {
            dist = 0;
        }
        return dist;
    }

    public static double ptSegDist(double x1, double y1, double x2, double y2, double px, double py) {
        return Math.sqrt(ptSegDistSq(x1, y1, x2, y2, px, py));
    }

    public double ptSegDistSq(double px, double py) {
        return ptSegDistSq(getX1(), getY1(), getX2(), getY2(), px, py);
    }

    public double ptSegDistSq(Point2D p) {
        return ptSegDistSq(getX1(), getY1(), getX2(), getY2(), p.getX(), p.getY());
    }

    public double ptSegDist(double px, double py) {
        return ptSegDist(getX1(), getY1(), getX2(), getY2(), px, py);
    }

    public double ptSegDist(Point2D p) {
        return ptSegDist(getX1(), getY1(), getX2(), getY2(), p.getX(), p.getY());
    }

    public static double ptLineDistSq(double x1, double y1, double x2, double y2, double px, double py) {
        x2 -= x1;
        y2 -= y1;
        px -= x1;
        py -= y1;
        double s = px * y2 - py * x2;
        return s * s / (x2 * x2 + y2 * y2);
    }

    public static double ptLineDist(double x1, double y1, double x2, double y2, double px, double py) {
        return Math.sqrt(ptLineDistSq(x1, y1, x2, y2, px, py));
    }

    public double ptLineDistSq(double px, double py) {
        return ptLineDistSq(getX1(), getY1(), getX2(), getY2(), px, py);
    }

    public double ptLineDistSq(Point2D p) {
        return ptLineDistSq(getX1(), getY1(), getX2(), getY2(), p.getX(), p.getY());
    }

    public double ptLineDist(double px, double py) {
        return ptLineDist(getX1(), getY1(), getX2(), getY2(), px, py);
    }

    public double ptLineDist(Point2D p) {
        return ptLineDist(getX1(), getY1(), getX2(), getY2(), p.getX(), p.getY());
    }

    public boolean contains(double px, double py) {
        return false;
    }

    public boolean contains(Point2D p) {
        return false;
    }

    public boolean contains(Rectangle2D r) {
        return false;
    }

    public boolean contains(double rx, double ry, double rw, double rh) {
        return false;
    }

    public boolean intersects(double rx, double ry, double rw, double rh) {
        return intersects(new Rectangle2D.Double(rx, ry, rw, rh));
    }

    public boolean intersects(Rectangle2D r) {
        return r.intersectsLine(getX1(), getY1(), getX2(), getY2());
    }

    public PathIterator getPathIterator(AffineTransform at) {
        return new Iterator(this, at);
    }

    public PathIterator getPathIterator(AffineTransform at, double flatness) {
        return new Iterator(this, at);
    }

    @Override
    public Object clone() {
        try {
            return super.clone();
        } catch (CloneNotSupportedException e) {
            throw new InternalError();
        }
    }

}

⏎ com/itextpdf/awt/geom/Line2D.java

Or download all of them as a single archive file:

File name: itextpdf-5.5.14-fyi.zip
File size: 2163839 bytes
Release date: 2009-10-09
Download 

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