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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/awt/java2d/LineSegment.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/awt/java2d/LineSegment.java')
-rw-r--r-- | libjava/classpath/gnu/java/awt/java2d/LineSegment.java | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/awt/java2d/LineSegment.java b/libjava/classpath/gnu/java/awt/java2d/LineSegment.java new file mode 100644 index 000000000..904037989 --- /dev/null +++ b/libjava/classpath/gnu/java/awt/java2d/LineSegment.java @@ -0,0 +1,118 @@ +/* LineSegment.java -- Line segment used for BasicStroke + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.java.awt.java2d; + + +import java.awt.geom.Point2D; + +public class LineSegment extends Segment +{ + public LineSegment(double x1, double y1, double x2, double y2) + { + super(); + P1 = new Point2D.Double(x1, y1); + P2 = new Point2D.Double(x2, y2); + } + + public LineSegment(Point2D p1, Point2D p2) + { + super(); + P1 = (Point2D) p1.clone(); + P2 = (Point2D) p2.clone(); + } + + /** + * Clones this segment + */ + public Object clone() + { + LineSegment segment = null; + + try + { + segment = (LineSegment) super.clone(); + segment.P1 = (Point2D) P1.clone(); + segment.P2 = (Point2D) P2.clone(); + } + catch (CloneNotSupportedException cnse) + { + InternalError ie = new InternalError(); + ie.initCause(cnse); + throw ie; + } + + return segment; + } + + /** + * Get the "top" and "bottom" segments of this segment. + * First array element is p0 + normal, second is p0 - normal. + */ + public Segment[] getDisplacedSegments(double radius) + { + this.radius = radius; + double x0 = P1.getX(); + double y0 = P1.getY(); + double x1 = P2.getX(); + double y1 = P2.getY(); + double[] p = normal(x0, y0, x1, y1); + Segment s1 = (new LineSegment(x0 + p[0], y0 + p[1], + x1 + p[0], y1 + p[1] )); + Segment s2 = (new LineSegment(x0 - p[0], y0 - p[1], + x1 - p[0], y1 - p[1] )); + return new Segment[]{s1, s2}; + } + + public void reverse() + { + Point2D p = P1; + P1 = P2; + P2 = p; + } + + public double[] cp1() + { + return new double[]{P2.getX(), P2.getY()}; + } + + public double[] cp2() + { + return new double[]{P1.getX(), P1.getY()}; + } +} // class LineSegment |