| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2003, the JUNG Project and the Regents of the University | |
| 3 | * of California | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * This software is open-source under the BSD license; see either | |
| 7 | * "license.txt" or | |
| 8 | * http://jung.sourceforge.net/license.txt for a description. | |
| 9 | */ | |
| 10 | /* | |
| 11 | * Created on Mar 19, 2005 | |
| 12 | * | |
| 13 | */ | |
| 14 | package edu.uci.ics.jung.visualization; | |
| 15 | ||
| 16 | import edu.uci.ics.jung.graph.Edge; | |
| 17 | import edu.uci.ics.jung.graph.Vertex; | |
| 18 | ||
| 19 | ||
| 20 | /** | |
| 21 | * Simple implementation of PickSupport that returns the vertex or edge | |
| 22 | * that is closest to the specified location. This implementation | |
| 23 | * provides the same picking options that were available in | |
| 24 | * previous versions of AbstractLayout. | |
| 25 | * | |
| 26 | * @author Tom Nelson | |
| 27 | * @author Joshua O'Madadhain | |
| 28 | */ | |
| 29 | public class RadiusPickSupport extends RadiusGraphElementAccessor implements PickSupport { | |
| 30 | ||
| 31 | protected HasGraphLayout hasGraphLayout; | |
| 32 | ||
| 33 | public RadiusPickSupport(HasGraphLayout hasGraphLayout, double maxDistance) { | |
| 34 | 0 | this(maxDistance); |
| 35 | 0 | this.hasGraphLayout = hasGraphLayout; |
| 36 | 0 | } |
| 37 | ||
| 38 | public RadiusPickSupport() { | |
| 39 | 0 | this(Math.sqrt(Double.MAX_VALUE - 1000)); |
| 40 | 0 | } |
| 41 | ||
| 42 | /** | |
| 43 | * the layout will always be provided by the VisualizationViewer | |
| 44 | * this is supporting picking for | |
| 45 | * @param maxDistance | |
| 46 | */ | |
| 47 | public RadiusPickSupport(double maxDistance) { | |
| 48 | 0 | super(null, maxDistance); |
| 49 | 0 | } |
| 50 | ||
| 51 | /** | |
| 52 | * called by VisualizationViewer when this PickSupport impl is | |
| 53 | * added to VisualizationViewer. This allows the PickSupport to | |
| 54 | * always get the current Layout from the VisualizationViewer it | |
| 55 | * supports picking on. | |
| 56 | */ | |
| 57 | public void setHasGraphLayout(HasGraphLayout hasGraphLayout) { | |
| 58 | 0 | this.hasGraphLayout = hasGraphLayout; |
| 59 | 0 | } |
| 60 | ||
| 61 | /** | |
| 62 | * Gets the vertex nearest to the location of the (x,y) location selected, | |
| 63 | * within a distance of <tt>maxDistance</tt>. Iterates through all | |
| 64 | * visible vertices and checks their distance from the click. Override this | |
| 65 | * method to provde a more efficient implementation. | |
| 66 | */ | |
| 67 | public Vertex getVertex(double x, double y) { | |
| 68 | 0 | return getVertex(x, y, this.maxDistance); |
| 69 | } | |
| 70 | ||
| 71 | /** | |
| 72 | * Gets the vertex nearest to the location of the (x,y) location selected, | |
| 73 | * within a distance of <tt>maxDistance</tt>. Iterates through all | |
| 74 | * visible vertices and checks their distance from the click. Override this | |
| 75 | * method to provde a more efficient implementation. | |
| 76 | * @param x | |
| 77 | * @param y | |
| 78 | * @param maxDistance temporarily overrides member maxDistance | |
| 79 | */ | |
| 80 | public Vertex getVertex(double x, double y, double maxDistance) { | |
| 81 | // if vv is set, use it to get the most current layout | |
| 82 | 0 | if(hasGraphLayout != null) { |
| 83 | 0 | layout = hasGraphLayout.getGraphLayout(); |
| 84 | } | |
| 85 | 0 | return super.getVertex(x, y, maxDistance); |
| 86 | } | |
| 87 | ||
| 88 | /** | |
| 89 | * Gets the edge nearest to the location of the (x,y) location selected. | |
| 90 | * Calls the longer form of the call. | |
| 91 | */ | |
| 92 | public Edge getEdge(double x, double y) { | |
| 93 | 0 | return getEdge(x, y, this.maxDistance); |
| 94 | } | |
| 95 | ||
| 96 | /** | |
| 97 | * Gets the edge nearest to the location of the (x,y) location selected, | |
| 98 | * within a distance of <tt>maxDistance</tt>, Iterates through all | |
| 99 | * visible edges and checks their distance from the click. Override this | |
| 100 | * method to provide a more efficient implementation. | |
| 101 | * | |
| 102 | * @param x | |
| 103 | * @param y | |
| 104 | * @param maxDistance temporarily overrides member maxDistance | |
| 105 | * @return Edge closest to the click. | |
| 106 | */ | |
| 107 | public Edge getEdge(double x, double y, double maxDistance) { | |
| 108 | // if vv is set, use it to get the most current layout | |
| 109 | 0 | if(hasGraphLayout != null) { |
| 110 | 0 | layout = hasGraphLayout.getGraphLayout(); |
| 111 | } | |
| 112 | 0 | return super.getEdge(x, y, maxDistance); |
| 113 | } | |
| 114 | } |
|
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |