Coverage details for edu.uci.ics.jung.visualization.control.AbstractGraphMousePlugin

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1 /*
2  * Copyright (c) 2005, 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  * Created on Jul 6, 2005
9  */
10  
11 package edu.uci.ics.jung.visualization.control;
12  
13 import java.awt.Cursor;
14 import java.awt.Point;
15 import java.awt.event.MouseEvent;
16  
17 /**
18  * a base class for GraphMousePlugin instances. Holds some members
19  * common to all GraphMousePlugins
20  * @author thomasnelson
21  *
22  */
23 public abstract class AbstractGraphMousePlugin implements GraphMousePlugin {
24  
25     /**
26      * modifiers to compare against mouse event modifiers
27      */
28     protected int modifiers;
29     
30     /**
31      * the location in the View where the mouse was pressed
32      */
33     protected Point down;
34     
35     /**
36      * the special cursor that plugins may display
37      */
38     protected Cursor cursor;
39     
40     /**
41      * create an instance with passed values
42      * @param modifiers
43      */
440    public AbstractGraphMousePlugin(int modifiers) {
450        this.modifiers = modifiers;
460    }
47     
48     /**
49      * getter for mouse modifiers
50      */
51     public int getModifiers() {
520        return modifiers;
53     }
54  
55     /**
56      * setter for mouse modifiers
57      */
58     public void setModifiers(int modifiers) {
590        this.modifiers = modifiers;
600    }
61     
62     /**
63      * check the mouse event modifiers against the
64      * instance member modifiers. Default implementation
65      * checks equality. Can be overridden to test with a mask
66      */
67     public boolean checkModifiers(MouseEvent e) {
680        return e.getModifiers() == modifiers;
69     }
70  
71     /**
72      * @return Returns the cursor.
73      */
74     public Cursor getCursor() {
750        return cursor;
76     }
77  
78     /**
79      * @param cursor The cursor to set.
80      */
81     public void setCursor(Cursor cursor) {
820        this.cursor = cursor;
830    }
84 }

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