svn-gvsig-desktop / branches / v2_0_0_prep / extensions / extRasterTools-SE / src / org / gvsig / fmap / raster / layers / FLyrState.java @ 28995
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| 1 | 13703 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | */
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| 19 | package org.gvsig.fmap.raster.layers; |
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| 20 | |||
| 21 | |||
| 22 | /**
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| 23 | * Estados de una capa. Cada capa tiene uno o varios estados activos en cada instante.
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| 24 | * Hay estados no compatibles entre si, es decir, no pueden estar activos a la vez en cada
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| 25 | * instante. Por ejemplo, una capa no puede estar cerrada y renderizando ya que sus datos no
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| 26 | * est?n accesibles para esa operaci?n. Los estados de una capa sir
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| 27 | * @version 13/09/2007
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| 28 | * @author Nacho Brodin (nachobrodin@gmail.com)
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| 29 | *
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| 30 | */
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| 31 | public class FLyrState implements ILayerState { |
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| 32 | private boolean open = false; |
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| 33 | private boolean closed = true; |
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| 34 | private boolean awake = false; |
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| 35 | private boolean stopped = false; |
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| 36 | //private boolean renderizing = false;
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| 37 | |||
| 38 | private int lastBeforeStop = UNDEFINED; |
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| 39 | |||
| 40 | |||
| 41 | /*
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| 42 | * (non-Javadoc)
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| 43 | * @see org.gvsig.fmap.raster.layers.IState#isAwake()
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| 44 | */
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| 45 | public boolean isAwake() { |
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| 46 | return awake;
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| 47 | } |
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| 48 | |||
| 49 | /*
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| 50 | * (non-Javadoc)
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| 51 | * @see org.gvsig.fmap.raster.layers.IState#enableAwake()
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| 52 | */
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| 53 | public void enableAwake() throws NotAvailableStateException { |
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| 54 | if(open == true || closed == true || stopped == true) { |
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| 55 | this.awake = true; |
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| 56 | stopped = closed = open = false;
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| 57 | lastBeforeStop = UNDEFINED; |
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| 58 | } else
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| 59 | throw new NotAvailableStateException("Awake state not available"); |
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| 60 | } |
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| 61 | |||
| 62 | /*
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| 63 | * (non-Javadoc)
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| 64 | * @see org.gvsig.fmap.raster.layers.IState#isOpen()
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| 65 | */
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| 66 | public boolean isOpen() { |
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| 67 | return open;
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| 68 | } |
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| 69 | |||
| 70 | /*
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| 71 | * (non-Javadoc)
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| 72 | * @see org.gvsig.fmap.raster.layers.IState#enableOpen()
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| 73 | */
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| 74 | public void enableOpen() throws NotAvailableStateException { |
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| 75 | if(stopped == true || awake == true) { |
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| 76 | this.open = true; |
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| 77 | stopped = closed = awake = false;
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| 78 | lastBeforeStop = UNDEFINED; |
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| 79 | } else
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| 80 | throw new NotAvailableStateException("Open state not available"); |
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| 81 | } |
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| 82 | |||
| 83 | |||
| 84 | /*
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| 85 | * (non-Javadoc)
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| 86 | * @see org.gvsig.fmap.raster.layers.IState#isClosed()
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| 87 | */
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| 88 | public boolean isClosed() { |
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| 89 | return closed;
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| 90 | } |
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| 91 | |||
| 92 | /*
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| 93 | * (non-Javadoc)
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| 94 | * @see org.gvsig.fmap.raster.layers.IState#enableClosed()
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| 95 | */
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| 96 | public void enableClosed() throws NotAvailableStateException { |
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| 97 | if(open == true || awake == true || stopped == true) { |
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| 98 | this.closed = true; |
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| 99 | stopped = open = awake = false;
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| 100 | lastBeforeStop = UNDEFINED; |
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| 101 | } else
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| 102 | throw new NotAvailableStateException("Closed state not available"); |
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| 103 | } |
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| 104 | |||
| 105 | /*
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| 106 | * (non-Javadoc)
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| 107 | * @see org.gvsig.fmap.raster.layers.IState#isStopped()
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| 108 | */
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| 109 | public boolean isStopped() { |
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| 110 | return stopped;
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| 111 | } |
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| 112 | |||
| 113 | /*
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| 114 | * (non-Javadoc)
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| 115 | * @see org.gvsig.fmap.raster.layers.IState#enableStopped()
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| 116 | */
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| 117 | public void enableStopped() { |
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| 118 | if(open == true || awake == true || closed == true) { |
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| 119 | lastBeforeStop = (open == true) ? OPEN : ((closed == true) ? CLOSED : ((awake == true) ? AWAKE : UNDEFINED)); |
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| 120 | if(lastBeforeStop != UNDEFINED) {
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| 121 | stopped = true;
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| 122 | closed = open = awake = false;
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| 123 | } |
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| 124 | } |
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| 125 | } |
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| 126 | |||
| 127 | /*
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| 128 | * (non-Javadoc)
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| 129 | * @see org.gvsig.fmap.raster.layers.IState#disableStopped()
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| 130 | */
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| 131 | public void disableStopped() { |
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| 132 | if(stopped == true && lastBeforeStop != UNDEFINED) { |
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| 133 | switch(lastBeforeStop) {
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| 134 | case OPEN: open = true; closed = awake = false; break; |
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| 135 | case CLOSED: closed = true; awake = open = false; break; |
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| 136 | case AWAKE: awake = true; closed = open = false; break; |
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| 137 | } |
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| 138 | stopped = false;
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| 139 | lastBeforeStop = UNDEFINED; |
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| 140 | } |
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| 141 | } |
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| 142 | |||
| 143 | } |