| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2003, the JUNG Project and the Regents of the University of | |
| 3 | * California All rights reserved. | |
| 4 | * | |
| 5 | * This software is open-source under the BSD license; see either "license.txt" | |
| 6 | * or http://jung.sourceforge.net/license.txt for a description. | |
| 7 | * | |
| 8 | */ | |
| 9 | package edu.uci.ics.jung.visualization.transform.shape; | |
| 10 | ||
| 11 | import java.awt.Component; | |
| 12 | import java.awt.Shape; | |
| 13 | import java.awt.geom.GeneralPath; | |
| 14 | import java.awt.geom.PathIterator; | |
| 15 | import java.awt.geom.Point2D; | |
| 16 | ||
| 17 | import edu.uci.ics.jung.visualization.transform.HyperbolicTransformer; | |
| 18 | import edu.uci.ics.jung.visualization.transform.MutableTransformer; | |
| 19 | ||
| 20 | /** | |
| 21 | * HyperbolicShapeTransformer extends HyperbolicTransformer and | |
| 22 | * adds implementations for methods in ShapeTransformer. | |
| 23 | * It modifies the shapes (Vertex, Edge, and Arrowheads) so that | |
| 24 | * they are distorted by the hyperbolic transformation | |
| 25 | * | |
| 26 | * @author Tom Nelson - RABA Technologies | |
| 27 | * | |
| 28 | * | |
| 29 | */ | |
| 30 | public class HyperbolicShapeTransformer extends HyperbolicTransformer | |
| 31 | implements ShapeTransformer { | |
| 32 | ||
| 33 | /** | |
| 34 | * Create an instance, setting values from the passed component | |
| 35 | * and registering to listen for size changes on the component. | |
| 36 | */ | |
| 37 | public HyperbolicShapeTransformer(Component component) { | |
| 38 | 0 | this(component, null); |
| 39 | 0 | } |
| 40 | ||
| 41 | /** | |
| 42 | * Create an instance, setting values from the passed component | |
| 43 | * and registering to listen for size changes on the component, | |
| 44 | * with a possibly shared transform <code>delegate</code>. | |
| 45 | */ | |
| 46 | public HyperbolicShapeTransformer(Component component, MutableTransformer delegate) { | |
| 47 | 0 | super(component, delegate); |
| 48 | 0 | } |
| 49 | ||
| 50 | /** | |
| 51 | * Transform the supplied shape with the overridden transform | |
| 52 | * method so that the shape is distorted by the hyperbolic | |
| 53 | * transform. | |
| 54 | * @param shape a shape to transform | |
| 55 | * @return a GeneralPath for the transformed shape | |
| 56 | */ | |
| 57 | public Shape transform(Shape shape) { | |
| 58 | 0 | return transform(shape, 0); |
| 59 | } | |
| 60 | public Shape transform(Shape shape, float flatness) { | |
| 61 | 0 | GeneralPath newPath = new GeneralPath(); |
| 62 | 0 | float[] coords = new float[6]; |
| 63 | 0 | PathIterator iterator = null; |
| 64 | 0 | if(flatness == 0) { |
| 65 | 0 | iterator = shape.getPathIterator(null); |
| 66 | } else { | |
| 67 | 0 | iterator = shape.getPathIterator(null, flatness); |
| 68 | } | |
| 69 | for( ; | |
| 70 | 0 | iterator.isDone() == false; |
| 71 | 0 | iterator.next()) { |
| 72 | 0 | int type = iterator.currentSegment(coords); |
| 73 | 0 | switch(type) { |
| 74 | case PathIterator.SEG_MOVETO: | |
| 75 | 0 | Point2D p = transform(new Point2D.Float(coords[0], coords[1])); |
| 76 | 0 | newPath.moveTo((float)p.getX(), (float)p.getY()); |
| 77 | 0 | break; |
| 78 | ||
| 79 | case PathIterator.SEG_LINETO: | |
| 80 | 0 | p = transform(new Point2D.Float(coords[0], coords[1])); |
| 81 | 0 | newPath.lineTo((float)p.getX(), (float) p.getY()); |
| 82 | 0 | break; |
| 83 | ||
| 84 | case PathIterator.SEG_QUADTO: | |
| 85 | 0 | p = transform(new Point2D.Float(coords[0], coords[1])); |
| 86 | 0 | Point2D q = transform(new Point2D.Float(coords[2], coords[3])); |
| 87 | 0 | newPath.quadTo((float)p.getX(), (float)p.getY(), (float)q.getX(), (float)q.getY()); |
| 88 | 0 | break; |
| 89 | ||
| 90 | case PathIterator.SEG_CUBICTO: | |
| 91 | 0 | p = transform(new Point2D.Float(coords[0], coords[1])); |
| 92 | 0 | q = transform(new Point2D.Float(coords[2], coords[3])); |
| 93 | 0 | Point2D r = transform(new Point2D.Float(coords[4], coords[5])); |
| 94 | 0 | newPath.curveTo((float)p.getX(), (float)p.getY(), |
| 95 | (float)q.getX(), (float)q.getY(), | |
| 96 | (float)r.getX(), (float)r.getY()); | |
| 97 | 0 | break; |
| 98 | ||
| 99 | case PathIterator.SEG_CLOSE: | |
| 100 | 0 | newPath.closePath(); |
| 101 | break; | |
| 102 | ||
| 103 | } | |
| 104 | } | |
| 105 | 0 | return newPath; |
| 106 | } | |
| 107 | ||
| 108 | public Shape inverseTransform(Shape shape) { | |
| 109 | 0 | GeneralPath newPath = new GeneralPath(); |
| 110 | 0 | float[] coords = new float[6]; |
| 111 | 0 | for(PathIterator iterator=shape.getPathIterator(null); |
| 112 | 0 | iterator.isDone() == false; |
| 113 | 0 | iterator.next()) { |
| 114 | 0 | int type = iterator.currentSegment(coords); |
| 115 | 0 | switch(type) { |
| 116 | case PathIterator.SEG_MOVETO: | |
| 117 | 0 | Point2D p = inverseTransform(new Point2D.Float(coords[0], coords[1])); |
| 118 | 0 | newPath.moveTo((float)p.getX(), (float)p.getY()); |
| 119 | 0 | break; |
| 120 | ||
| 121 | case PathIterator.SEG_LINETO: | |
| 122 | 0 | p = inverseTransform(new Point2D.Float(coords[0], coords[1])); |
| 123 | 0 | newPath.lineTo((float)p.getX(), (float) p.getY()); |
| 124 | 0 | break; |
| 125 | ||
| 126 | case PathIterator.SEG_QUADTO: | |
| 127 | 0 | p = inverseTransform(new Point2D.Float(coords[0], coords[1])); |
| 128 | 0 | Point2D q = inverseTransform(new Point2D.Float(coords[2], coords[3])); |
| 129 | 0 | newPath.quadTo((float)p.getX(), (float)p.getY(), (float)q.getX(), (float)q.getY()); |
| 130 | 0 | break; |
| 131 | ||
| 132 | case PathIterator.SEG_CUBICTO: | |
| 133 | 0 | p = inverseTransform(new Point2D.Float(coords[0], coords[1])); |
| 134 | 0 | q = inverseTransform(new Point2D.Float(coords[2], coords[3])); |
| 135 | 0 | Point2D r = inverseTransform(new Point2D.Float(coords[4], coords[5])); |
| 136 | 0 | newPath.curveTo((float)p.getX(), (float)p.getY(), |
| 137 | (float)q.getX(), (float)q.getY(), | |
| 138 | (float)r.getX(), (float)r.getY()); | |
| 139 | 0 | break; |
| 140 | ||
| 141 | case PathIterator.SEG_CLOSE: | |
| 142 | 0 | newPath.closePath(); |
| 143 | break; | |
| 144 | ||
| 145 | } | |
| 146 | } | |
| 147 | 0 | return newPath; |
| 148 | } | |
| 149 | } |
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this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |