svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.api / src / main / java / org / gvsig / fmap / geom / handler / AbstractHandler.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40435 | jjdelcerro | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.fmap.geom.handler; |
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25 | |||
26 | import java.awt.geom.Point2D; |
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27 | |||
28 | |||
29 | |||
30 | /**
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31 | * This class expands the <code>Handler</code> interface adding support for selection, and
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32 | * identifying a handler of a geometry.
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33 | *
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34 | * @see Handler
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35 | *
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36 | * @author Vicente Caballero Navarro
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37 | */
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38 | public abstract class AbstractHandler implements Handler { |
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39 | /**
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40 | * Identifies each handler of a geometry.
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41 | */
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42 | protected int index; |
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43 | /**
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44 | * Position of this handler.
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45 | *
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46 | * @see #getPoint()
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47 | * @see Handler#set(double, double)
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48 | * @see Handler#move(double, double)
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49 | */
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50 | protected Point2D point; |
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51 | /**
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52 | * True when the handler is selected.
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53 | *
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54 | * @see #select
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55 | * @see #isSelected()
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56 | */
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57 | private boolean select=false; |
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58 | /*
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59 | * (non-Javadoc)
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60 | * @see com.iver.cit.gvsig.fmap.core.Handler#getPoint()
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61 | */
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62 | public Point2D getPoint() { |
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63 | return point;
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64 | } |
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65 | /**
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66 | * Sets the state of the handler. <code>True</code> if is selected, <code>false</code> if it's not.
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67 | *
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68 | * @param b <code>true</code> if the handler is selected, <code>false</code> otherwise
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69 | *
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70 | * @see #isSelected()
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71 | */
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72 | public void select(boolean b) { |
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73 | select=b; |
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74 | } |
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75 | /**
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76 | * Returns the state of the handler. <code>True</code> if is selected, <code>false</code> if it's not.
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77 | *
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78 | * @return <code>true</code> if the handler is selected,<code>false</code> otherwise
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79 | *
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80 | * @see #select(boolean)
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81 | */
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82 | public boolean isSelected(){ |
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83 | return select;
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84 | } |
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85 | /*
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86 | * (non-Javadoc)
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87 | * @see com.iver.cit.gvsig.fmap.core.Handler#equalsPoint(java.lang.Object)
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88 | */
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89 | public boolean equalsPoint(Object obj) { |
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90 | Point2D p1=this.getPoint(); |
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91 | Point2D p2=((Handler)obj).getPoint(); |
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92 | if (p1.getX()==p2.getX() && p1.getY()==p2.getY()) {
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93 | return true; |
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94 | } |
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95 | return false; |
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96 | } |
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97 | } |