gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.fmap / src / main / java / org / gvsig / raster / fmap / layers / FLyrState.java @ 1738
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| 1 | 103 | nbrodin | /* gvSIG. Geographic Information System of the Valencian Government
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| 2 | *
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| 3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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| 4 | * of the Valencian Government (CIT)
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| 5 | *
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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 | * as published by the Free Software Foundation; either version 2
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| 9 | * 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 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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| 19 | * MA 02110-1301, USA.
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| 20 | *
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| 21 | */
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| 22 | package org.gvsig.raster.fmap.layers; |
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| 23 | |||
| 24 | |||
| 25 | /**
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| 26 | * Estados de una capa. Cada capa tiene uno o varios estados activos en cada instante.
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| 27 | * Hay estados no compatibles entre si, es decir, no pueden estar activos a la vez en cada
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| 28 | * instante. Por ejemplo, una capa no puede estar cerrada y renderizando ya que sus datos no
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| 29 | * est?n accesibles para esa operaci?n. Los estados de una capa sir
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| 30 | * @version 13/09/2007
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| 31 | * @author Nacho Brodin (nachobrodin@gmail.com)
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| 32 | *
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| 33 | */
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| 34 | public class FLyrState implements ILayerState { |
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| 35 | private boolean open = false; |
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| 36 | private boolean closed = true; |
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| 37 | private boolean awake = false; |
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| 38 | private boolean stopped = false; |
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| 39 | //private boolean renderizing = false;
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| 40 | |||
| 41 | private int lastBeforeStop = UNDEFINED; |
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| 42 | |||
| 43 | |||
| 44 | /*
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| 45 | * (non-Javadoc)
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| 46 | * @see org.gvsig.fmap.raster.layers.IState#isAwake()
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| 47 | */
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| 48 | public boolean isAwake() { |
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| 49 | return awake;
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| 50 | } |
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| 51 | |||
| 52 | /*
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| 53 | * (non-Javadoc)
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| 54 | * @see org.gvsig.fmap.raster.layers.IState#enableAwake()
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| 55 | */
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| 56 | public void enableAwake() throws NotAvailableStateException { |
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| 57 | 163 | nbrodin | if(awake)
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| 58 | return;
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| 59 | 103 | nbrodin | if(open == true || closed == true || stopped == true) { |
| 60 | this.awake = true; |
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| 61 | stopped = closed = open = false;
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| 62 | lastBeforeStop = UNDEFINED; |
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| 63 | } else
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| 64 | throw new NotAvailableStateException("Awake state not available"); |
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| 65 | } |
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| 66 | |||
| 67 | /*
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| 68 | * (non-Javadoc)
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| 69 | * @see org.gvsig.fmap.raster.layers.IState#isOpen()
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| 70 | */
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| 71 | public boolean isOpen() { |
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| 72 | return open;
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| 73 | } |
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| 74 | |||
| 75 | /*
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| 76 | * (non-Javadoc)
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| 77 | * @see org.gvsig.fmap.raster.layers.IState#enableOpen()
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| 78 | */
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| 79 | public void enableOpen() throws NotAvailableStateException { |
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| 80 | if(stopped == true || awake == true) { |
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| 81 | this.open = true; |
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| 82 | stopped = closed = awake = false;
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| 83 | lastBeforeStop = UNDEFINED; |
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| 84 | } else
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| 85 | throw new NotAvailableStateException("Open state not available"); |
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| 86 | } |
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| 87 | |||
| 88 | |||
| 89 | /*
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| 90 | * (non-Javadoc)
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| 91 | * @see org.gvsig.fmap.raster.layers.IState#isClosed()
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| 92 | */
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| 93 | public boolean isClosed() { |
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| 94 | return closed;
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| 95 | } |
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| 96 | |||
| 97 | /*
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| 98 | * (non-Javadoc)
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| 99 | * @see org.gvsig.fmap.raster.layers.IState#enableClosed()
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| 100 | */
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| 101 | public void enableClosed() throws NotAvailableStateException { |
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| 102 | if(open == true || awake == true || stopped == true) { |
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| 103 | this.closed = true; |
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| 104 | stopped = open = awake = false;
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| 105 | lastBeforeStop = UNDEFINED; |
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| 106 | } else
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| 107 | throw new NotAvailableStateException("Closed state not available"); |
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| 108 | } |
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| 109 | |||
| 110 | /*
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| 111 | * (non-Javadoc)
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| 112 | * @see org.gvsig.fmap.raster.layers.IState#isStopped()
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| 113 | */
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| 114 | public boolean isStopped() { |
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| 115 | return stopped;
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| 116 | } |
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| 117 | |||
| 118 | /*
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| 119 | * (non-Javadoc)
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| 120 | * @see org.gvsig.fmap.raster.layers.IState#enableStopped()
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| 121 | */
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| 122 | public void enableStopped() { |
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| 123 | if(open == true || awake == true || closed == true) { |
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| 124 | lastBeforeStop = (open == true) ? OPEN : ((closed == true) ? CLOSED : ((awake == true) ? AWAKE : UNDEFINED)); |
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| 125 | if(lastBeforeStop != UNDEFINED) {
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| 126 | stopped = true;
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| 127 | closed = open = awake = false;
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| 128 | } |
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| 129 | } |
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| 130 | } |
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| 131 | |||
| 132 | /*
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| 133 | * (non-Javadoc)
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| 134 | * @see org.gvsig.fmap.raster.layers.IState#disableStopped()
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| 135 | */
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| 136 | public void disableStopped() { |
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| 137 | if(stopped == true && lastBeforeStop != UNDEFINED) { |
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| 138 | switch(lastBeforeStop) {
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| 139 | case OPEN: open = true; closed = awake = false; break; |
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| 140 | case CLOSED: closed = true; awake = open = false; break; |
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| 141 | case AWAKE: awake = true; closed = open = false; break; |
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| 142 | } |
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| 143 | stopped = false;
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| 144 | lastBeforeStop = UNDEFINED; |
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| 145 | } |
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| 146 | } |
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| 147 | |||
| 148 | } |