svn-gvsig-desktop / branches / v2_0_0_prep / extensions / extRasterTools-SE / src / org / gvsig / fmap / raster / layers / FLyrState.java @ 28995
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.fmap.raster.layers; |
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/**
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* Estados de una capa. Cada capa tiene uno o varios estados activos en cada instante.
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* Hay estados no compatibles entre si, es decir, no pueden estar activos a la vez en cada
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* instante. Por ejemplo, una capa no puede estar cerrada y renderizando ya que sus datos no
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* est?n accesibles para esa operaci?n. Los estados de una capa sir
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* @version 13/09/2007
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class FLyrState implements ILayerState { |
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private boolean open = false; |
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private boolean closed = true; |
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private boolean awake = false; |
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private boolean stopped = false; |
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//private boolean renderizing = false;
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private int lastBeforeStop = UNDEFINED; |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#isAwake()
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*/
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public boolean isAwake() { |
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return awake;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#enableAwake()
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*/
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public void enableAwake() throws NotAvailableStateException { |
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if(open == true || closed == true || stopped == true) { |
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this.awake = true; |
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stopped = closed = open = false;
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lastBeforeStop = UNDEFINED; |
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} else
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throw new NotAvailableStateException("Awake state not available"); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#isOpen()
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*/
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public boolean isOpen() { |
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return open;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#enableOpen()
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*/
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public void enableOpen() throws NotAvailableStateException { |
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if(stopped == true || awake == true) { |
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this.open = true; |
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stopped = closed = awake = false;
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lastBeforeStop = UNDEFINED; |
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} else
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throw new NotAvailableStateException("Open state not available"); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#isClosed()
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*/
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public boolean isClosed() { |
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return closed;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#enableClosed()
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*/
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public void enableClosed() throws NotAvailableStateException { |
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if(open == true || awake == true || stopped == true) { |
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this.closed = true; |
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stopped = open = awake = false;
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lastBeforeStop = UNDEFINED; |
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} else
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throw new NotAvailableStateException("Closed state not available"); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#isStopped()
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*/
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public boolean isStopped() { |
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return stopped;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#enableStopped()
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*/
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public void enableStopped() { |
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if(open == true || awake == true || closed == true) { |
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lastBeforeStop = (open == true) ? OPEN : ((closed == true) ? CLOSED : ((awake == true) ? AWAKE : UNDEFINED)); |
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if(lastBeforeStop != UNDEFINED) {
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stopped = true;
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closed = open = awake = false;
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} |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.raster.layers.IState#disableStopped()
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*/
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public void disableStopped() { |
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if(stopped == true && lastBeforeStop != UNDEFINED) { |
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switch(lastBeforeStop) {
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case OPEN: open = true; closed = awake = false; break; |
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case CLOSED: closed = true; awake = open = false; break; |
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case AWAKE: awake = true; closed = open = false; break; |
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} |
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stopped = false;
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lastBeforeStop = UNDEFINED; |
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} |
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} |
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} |