| Line | Hits | Source |
|---|---|---|
| 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 | */ | |
| 44 | 0 | public AbstractGraphMousePlugin(int modifiers) { |
| 45 | 0 | this.modifiers = modifiers; |
| 46 | 0 | } |
| 47 | ||
| 48 | /** | |
| 49 | * getter for mouse modifiers | |
| 50 | */ | |
| 51 | public int getModifiers() { | |
| 52 | 0 | return modifiers; |
| 53 | } | |
| 54 | ||
| 55 | /** | |
| 56 | * setter for mouse modifiers | |
| 57 | */ | |
| 58 | public void setModifiers(int modifiers) { | |
| 59 | 0 | this.modifiers = modifiers; |
| 60 | 0 | } |
| 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) { | |
| 68 | 0 | return e.getModifiers() == modifiers; |
| 69 | } | |
| 70 | ||
| 71 | /** | |
| 72 | * @return Returns the cursor. | |
| 73 | */ | |
| 74 | public Cursor getCursor() { | |
| 75 | 0 | return cursor; |
| 76 | } | |
| 77 | ||
| 78 | /** | |
| 79 | * @param cursor The cursor to set. | |
| 80 | */ | |
| 81 | public void setCursor(Cursor cursor) { | |
| 82 | 0 | this.cursor = cursor; |
| 83 | 0 | } |
| 84 | } |
|
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