| 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 | * Created on Feb 17, 2004 | |
| 11 | */ | |
| 12 | package edu.uci.ics.jung.visualization; | |
| 13 | ||
| 14 | import java.awt.event.MouseAdapter; | |
| 15 | import java.awt.event.MouseEvent; | |
| 16 | import java.awt.geom.Point2D; | |
| 17 | ||
| 18 | import edu.uci.ics.jung.graph.Vertex; | |
| 19 | ||
| 20 | /** | |
| 21 | * This class translates mouse clicks into vertex clicks | |
| 22 | * | |
| 23 | * @author danyelf | |
| 24 | */ | |
| 25 | public class MouseListenerTranslator extends MouseAdapter { | |
| 26 | ||
| 27 | private VisualizationViewer vv; | |
| 28 | private GraphMouseListener gel; | |
| 29 | ||
| 30 | /** | |
| 31 | * @param gel | |
| 32 | * @param vv | |
| 33 | */ | |
| 34 | 0 | public MouseListenerTranslator(GraphMouseListener gel, VisualizationViewer vv) { |
| 35 | 0 | this.gel = gel; |
| 36 | 0 | this.vv = vv; |
| 37 | 0 | } |
| 38 | ||
| 39 | /** | |
| 40 | * Transform the point to the coordinate system in the | |
| 41 | * VisualizationViewer, then use either PickSuuport | |
| 42 | * (if available) or Layout to find a Vertex | |
| 43 | * @param point | |
| 44 | * @return | |
| 45 | */ | |
| 46 | private Vertex getVertex(Point2D point) { | |
| 47 | // adjust for scale and offset in the VisualizationViewer | |
| 48 | 0 | PickSupport pickSupport = vv.getPickSupport(); |
| 49 | 0 | Vertex v = null; |
| 50 | 0 | if(pickSupport != null) { |
| 51 | 0 | Point2D p = vv.inverseViewTransform(point); |
| 52 | 0 | v = pickSupport.getVertex(p.getX(), p.getY()); |
| 53 | } | |
| 54 | 0 | return v; |
| 55 | } | |
| 56 | /** | |
| 57 | * @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent) | |
| 58 | */ | |
| 59 | public void mouseClicked(MouseEvent e) { | |
| 60 | 0 | Vertex v = getVertex(e.getPoint()); |
| 61 | 0 | if ( v != null ) { |
| 62 | 0 | gel.graphClicked(v, e ); |
| 63 | } | |
| 64 | 0 | } |
| 65 | ||
| 66 | /** | |
| 67 | * @see java.awt.event.MouseListener#mousePressed(java.awt.event.MouseEvent) | |
| 68 | */ | |
| 69 | public void mousePressed(MouseEvent e) { | |
| 70 | 0 | Vertex v = getVertex(e.getPoint()); |
| 71 | 0 | if ( v != null ) { |
| 72 | 0 | gel.graphPressed(v, e ); |
| 73 | } | |
| 74 | 0 | } |
| 75 | ||
| 76 | /** | |
| 77 | * @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent) | |
| 78 | */ | |
| 79 | public void mouseReleased(MouseEvent e) { | |
| 80 | 0 | Vertex v = getVertex(e.getPoint()); |
| 81 | 0 | if ( v != null ) { |
| 82 | 0 | gel.graphReleased(v, e ); |
| 83 | } | |
| 84 | 0 | } |
| 85 | } |
|
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |