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gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / grid / render / DefaultRender.java @ 1057

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/* gvSIG. Geographic Information System of the Valencian Government
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 *
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 * Copyright (C) 2007-2008 Infrastructures and Transports Department
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 * of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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 * MA  02110-1301, USA.
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 *
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 */
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package org.gvsig.raster.impl.grid.render;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Dimension2D;
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import java.awt.geom.NoninvertibleTransformException;
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import java.awt.geom.Point2D;
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import java.util.ArrayList;
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import org.gvsig.fmap.dal.coverage.RasterLocator;
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import org.gvsig.fmap.dal.coverage.dataset.Buffer;
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import org.gvsig.fmap.dal.coverage.datastruct.Extent;
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import org.gvsig.fmap.dal.coverage.datastruct.Params;
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import org.gvsig.fmap.dal.coverage.datastruct.ViewPortData;
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import org.gvsig.fmap.dal.coverage.exception.FilterManagerException;
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import org.gvsig.fmap.dal.coverage.exception.FilterTypeException;
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import org.gvsig.fmap.dal.coverage.exception.InvalidSetViewException;
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException;
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException;
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import org.gvsig.fmap.dal.coverage.grid.FilterListChangeEvent;
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import org.gvsig.fmap.dal.coverage.grid.FilterListChangeListener;
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import org.gvsig.fmap.dal.coverage.grid.Grid;
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import org.gvsig.fmap.dal.coverage.grid.RasterFilter;
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import org.gvsig.fmap.dal.coverage.grid.RasterFilterList;
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import org.gvsig.fmap.dal.coverage.grid.RasterFilterListManager;
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import org.gvsig.fmap.dal.coverage.grid.render.Render;
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import org.gvsig.fmap.dal.coverage.grid.render.VisualPropertyEvent;
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import org.gvsig.fmap.dal.coverage.grid.render.VisualPropertyListener;
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import org.gvsig.fmap.dal.coverage.store.RasterDataStore;
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import org.gvsig.fmap.dal.coverage.store.RasterQuery;
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import org.gvsig.fmap.dal.coverage.store.props.ColorInterpretation;
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import org.gvsig.fmap.dal.coverage.store.props.ColorTable;
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import org.gvsig.fmap.dal.coverage.store.props.Transparency;
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import org.gvsig.fmap.dal.coverage.util.PropertyEvent;
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import org.gvsig.fmap.dal.coverage.util.PropertyListener;
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import org.gvsig.fmap.dal.coverage.util.RasterUtils;
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import org.gvsig.raster.cache.tile.Tile;
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import org.gvsig.raster.cache.tile.exception.TileGettingException;
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import org.gvsig.raster.cache.tile.provider.TileListener;
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import org.gvsig.raster.impl.DefaultRasterManager;
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import org.gvsig.raster.impl.datastruct.DefaultViewPortData;
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import org.gvsig.raster.impl.datastruct.ExtentImpl;
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import org.gvsig.raster.impl.grid.GridImpl;
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import org.gvsig.raster.impl.grid.filter.band.ColorTableFilter;
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import org.gvsig.raster.impl.store.properties.DataStoreColorInterpretation;
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import org.gvsig.tools.ToolsLocator;
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import org.gvsig.tools.dynobject.DynStruct;
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import org.gvsig.tools.persistence.PersistenceManager;
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import org.gvsig.tools.persistence.Persistent;
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import org.gvsig.tools.persistence.PersistentState;
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import org.gvsig.tools.persistence.exception.PersistenceException;
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import org.gvsig.tools.task.Cancellable;
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import org.gvsig.tools.task.TaskStatus;
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import org.slf4j.LoggerFactory;
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/**
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 * Esta clase se encarga de la gesti?n del dibujado de datos le?dos desde la capa
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 * "dataaccess" sobre objetos java. Para ello necesita una fuente de datos que tipicamente
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 * es un buffer (RasterBuffer) y un objeto que realice la funci?n de escritura de datos a
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 * partir de un estado inicial.
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 * Esta capa del renderizado gestiona Extents, rotaciones, tama?os de vista pero la escritura
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 * de datos desde el buffer al objeto image es llevada a cabo por ImageDrawer.
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 *
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 * Par?metros de control de la visualizaci?n:
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 * <UL>
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 * <LI>renderBands: Orden de visualizado de las bands.</LI>
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 * <LI>replicateBands: Para visualizaci?n de raster de una banda. Dice si se replica sobre las otras dos bandas
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 * de visualizaci?n o se ponen a 0.</LI>
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 * <LI>enhanced: aplicaci?n de filtro de realce</LI>
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 * <LI>removeEnds: Eliminar extremos en el filtro de realce. Uso del segundo m?ximo y m?nimo</LI>
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 * <LI>tailTrim: Aplicacion de recorte de colas en el realce. Es un valor decimal que representa el porcentaje del recorte entre 100.
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 * Es decir, 0.1 significa que el recorte es de un 10%</LI>
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 * </UL>
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 *
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 * @author Nacho Brodin (nachobrodin@gmail.com)
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 */
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public class DefaultRender implements Render, PropertyListener, FilterListChangeListener, Persistent, TileListener {
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        /**
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         * Grid para la gesti?n del buffer
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         */
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        private Grid             grid                     = null;
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        /**
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         * Fuente de datos para el renderizado
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         */
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        private RasterDataStore dataStore                 = null;
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        /**
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         * N?mero de bandas a renderizar y en el orden que se har?. Esto es asignado
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         * por el usuario de la renderizaci?n.
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         */
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        private int[]            renderBands              = { 0, 1, 2 };
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        private ImageDrawer      drawer                   = null;
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        /**
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         * Ultima transparencia aplicada en la visualizaci?n que es obtenida desde el
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         * grid
118
         */
119
        private Transparency     lastTransparency         = null;
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        private int              lastAlphaBand            = -1;
121
        
122
        /**
123
         * Lista de filtros aplicada en la renderizaci?n
124
         */
125
        private RasterFilterList filterList               = null;
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127
        private Buffer           lastRenderBuffer         = null;
128

    
129
        /**
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         * Ancho y alto del objeto Image en una petici?n de dibujado a un raster
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         * raster
132
         */
133
        private double           widthImage, heightImage;
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        private Point2D          ulPxRequest, lrPxRequest;
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137
        /**
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         * Array de listeners que ser?n informados cuando cambia una propiedad en la visualizaci?n
139
         */
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        private ArrayList<VisualPropertyListener>        
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                                 visualPropertyListener   = new ArrayList<VisualPropertyListener>();
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        private RasterUtils      util                     = RasterLocator.getManager().getRasterUtils();
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        private boolean          isDrawing                = false;
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        private Graphics2D       lastGraphics             = null;
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        private ViewPortData     lastViewPortData         = null;
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        private Dimension2D      viewDimension            = null;
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        //Cancelaci?n temporal hasta que est? disponible TaskStatus
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        private Cancellable      cancel                   = null;
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151
        /**
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         * Constructor
153
         * @param grid
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         */
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        public DefaultRender() {
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        }
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        /**
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         * Constructor
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         * @param grid
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         */
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        public DefaultRender(RasterDataStore ds) {
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                this.dataStore = ds;
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                init();
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#getDataStore()
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         */
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        public RasterDataStore getDataStore() {
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                return this.dataStore;
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setDataStore(org.gvsig.fmap.dal.coverage.store.RasterDataStore)
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         */
179
        public void setDataStore(RasterDataStore dataStore) {
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                this.dataStore = dataStore;
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                init();
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        }
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        private void init() {
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                if(dataStore.getDataType() == null)
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                        return;
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                drawer = new ImageDrawer(this);
189

    
190
                if (dataStore == null) {
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                        setRenderBands(new int[] { 0, 1, 2 });
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                        return;
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                }
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                //Bandas que se dibujan por defecto si la interpretaci?n de color no tiene valores
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                switch (dataStore.getBandCount()) {
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                        case 1:
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                                setRenderBands(new int[] { 0, 0, 0 });
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                                break;
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                        case 2:
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                                setRenderBands(new int[] { 0, 1, 1 });
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                                break;
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                        default:
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                                setRenderBands(new int[] { 0, 1, 2 });
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                                break;
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                }
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                //---------------------------------------------------
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                //INICIALIZACI?N DE LA INTERPRETACI?N DE COLOR
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                //Inicializaci?n de la asignaci?n de bandas en el renderizado
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                //Leemos el objeto metadata para obtener la interpretaci?n de color asociada al raster
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                ColorInterpretation colorInterpr = dataStore.getColorInterpretation();
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                if (colorInterpr != null)
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                        if (colorInterpr.getBand(DataStoreColorInterpretation.PAL_BAND) == -1) {
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                                if (colorInterpr.isUndefined())
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                                        return;
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                                int[] result = new int[] { -1, -1, -1 };
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                                int gray = colorInterpr.getBand(DataStoreColorInterpretation.GRAY_BAND);
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                                if (gray != -1)
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                                        result[0] = result[1] = result[2] = gray;
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                                else {
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                                        int r = colorInterpr.getBand(DataStoreColorInterpretation.RED_BAND);
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                                        if (r != -1)
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                                                result[0] = r;
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                                        int g = colorInterpr.getBand(DataStoreColorInterpretation.GREEN_BAND);
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                                        if (g != -1)
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                                                result[1] = g;
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                                        int b = colorInterpr.getBand(DataStoreColorInterpretation.BLUE_BAND);
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                                        if (b != -1)
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                                                result[2] = b;
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                                }
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                                setRenderBands(result);
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                        }
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        }
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        /**
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         * Asigna un listener a la lista que ser? informado cuando cambie una
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         * propiedad visual en la renderizaci?n.
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         * @param listener VisualPropertyListener
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         */
243
        public void addVisualPropertyListener(VisualPropertyListener listener) {
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                visualPropertyListener.add(listener);
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        }
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        /**
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         * M?todo llamado cuando hay un cambio en una propiedad de visualizaci?n
249
         */
250
        private void callVisualPropertyChanged(Object obj) {
251
                for (int i = 0; i < visualPropertyListener.size(); i++) {
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                        VisualPropertyEvent ev = new VisualPropertyEvent(obj);
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                        ((VisualPropertyListener)visualPropertyListener.get(i)).visualPropertyValueChanged(ev);
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                }
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        }
256
        
257
        /**
258
         * Thread de dibujado
259
         */
260
        public void run() {
261
                try {
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                        draw(lastGraphics, lastViewPortData, null);
263
                } catch (RasterDriverException e) {
264
                        LoggerFactory.getLogger(getClass()).debug("Error reading data", e);
265
                } catch (InvalidSetViewException e) {
266
                        LoggerFactory.getLogger(getClass()).debug("Invalid view", e);
267
                } catch (ProcessInterruptedException e) {
268
                }
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        }
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        /*
272
         * (non-Javadoc)
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         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setGraphicInfo(java.awt.Graphics2D, org.gvsig.fmap.dal.coverage.datastruct.ViewPortData)
274
         */
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        public void setGraphicInfo(Graphics2D g, ViewPortData vp) {
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                this.lastGraphics = g;
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                this.lastViewPortData = vp;
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        }
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        /*
281
         * (non-Javadoc)
282
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#drawThread(java.awt.Graphics2D, org.gvsig.fmap.dal.coverage.datastruct.ViewPortData)
283
         */
284
        public void drawThread(Graphics2D g, ViewPortData vp) {
285
                //Se dibuja si cae dentro de la vista
286
                if(util.isOutside(vp.getExtent(), dataStore.getExtent())) 
287
                        return;
288
                
289
                setReading(true);
290
                setGraphicInfo(g, vp);
291
                new Thread(this).start();
292

    
293
                while(isReading()) {
294
                        try {
295
                                Thread.sleep(50);
296
                        } catch (InterruptedException e) {
297
                                break;
298
                        }
299
                }
300
        }
301
        
302
        /*
303
         * (non-Javadoc)
304
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#draw(java.awt.Graphics2D, org.cresques.geo.ViewPortData)
305
         */
306
        public synchronized void drawTiledService(Graphics2D g, 
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                        ViewPortData vp, 
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                        Dimension2D viewDimension, 
309
                        TaskStatus taskStatus)
310
                throws RasterDriverException, InvalidSetViewException, ProcessInterruptedException {
311
                lastGraphics = g;
312
                lastViewPortData = vp;
313
                this.viewDimension = viewDimension;
314

    
315
                if(util.isOutside(vp.getExtent(), dataStore.getExtent())) {
316
                        endReading();
317
                        return;
318
                }
319
                
320
                if (dataStore != null) {
321
                        if (lastTransparency == null) {
322
                                lastTransparency = dataStore.getTransparency().cloneTransparency();
323
                                lastTransparency.addPropertyListener(this);
324
                                lastTransparency.setTransparencyBand(dataStore.getTransparency().getAlphaBandNumber());
325
                        }
326
                        
327
                        lastAlphaBand = lastTransparency.getAlphaBandNumber();
328
                        
329
                        // Asignamos la banda de transparencia si existe esta
330
                        RasterQuery query = DefaultRasterManager.getInstance().createQuery();
331
                        query.setTaskStatus(taskStatus);
332
                        query.setTime(vp.getTime());
333
                        query.setSupersamplingLoadingBuffer(false); // Desactivamos el supersampleo en la carga del buffer.
334
                        query.setDrawableBands(getRenderBands());
335
                        query.setFrameWidth(0);
336
                        query.setAlphaBand(lastTransparency.getAlphaBandNumber());
337
                        query.setCancel(cancel);
338
                        query.setAreaOfInterest(vp.getExtent(), 
339
                                        (int)Math.round(vp.getWidth()), 
340
                                        (int)Math.round(vp.getHeight()), this);
341
                        dataStore.query(query);
342
                        query.setSupersamplingLoadingBuffer(true);
343
                } else
344
                        return;
345
        }
346
        
347
        /*
348
         * (non-Javadoc)
349
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#draw(java.awt.Graphics2D, org.cresques.geo.ViewPortData)
350
         */
351
        public synchronized void draw(Graphics2D g, ViewPortData vp, TaskStatus taskStatus)
352
                throws RasterDriverException, InvalidSetViewException, ProcessInterruptedException {
353
                lastGraphics = g;
354
                lastViewPortData = vp;
355

    
356
                if(util.isOutside(vp.getExtent(), dataStore.getExtent())) {
357
                        endReading();
358
                        return;
359
                }
360

    
361
                Extent adjustedRotedRequest = request(vp, dataStore);
362

    
363
                if ((widthImage <= 0) || (heightImage <= 0)) {
364
                        endReading();
365
                        return;
366
                }
367

    
368
                if (dataStore == null) 
369
                        return;
370
                
371
                //If the transparency hasn't been defined yet then we'll take that from the store
372
                if (lastTransparency == null) {
373
                        lastTransparency = dataStore.getTransparency().cloneTransparency();
374
                        lastTransparency.addPropertyListener(this);
375
                }
376
                // Asignamos la banda de transparencia si existe esta
377
                RasterQuery query = DefaultRasterManager.getInstance().createQuery();
378
                query.setTaskStatus(taskStatus);
379
                query.setTime(vp.getTime());
380
                query.setSupersamplingLoadingBuffer(false); // Desactivamos el supersampleo en la carga del buffer.
381
                query.setAreaOfInterest(adjustedRotedRequest, (int)Math.round(widthImage), (int)Math.round(heightImage));
382
                
383
                if (lastTransparency.getAlphaBandNumber() != -1) {
384
                        query.setDrawableBands(new int[] { lastTransparency.getAlphaBandNumber()});
385
                        lastTransparency.setAlphaBand(dataStore.query(query));
386
                }
387
                lastAlphaBand = lastTransparency.getAlphaBandNumber();
388
                
389
                //query.setAreaOfInterest(adjustedRotedRequest.getULX(), adjustedRotedRequest.getULY(), adjustedRotedRequest.getLRX(), adjustedRotedRequest.getLRY(), (int)Math.round(widthImage), (int)Math.round(heightImage), this, 0);
390
                query.setDrawableBands(getRenderBands());
391
                Buffer buf = dataStore.query(query);
392
                query.setSupersamplingLoadingBuffer(true);
393
                double[] step = dataStore.getStep();
394
                
395
                if(drawer == null) {
396
                        init();
397
                }
398
                
399
                drawBufferOnImage(lastGraphics, 
400
                                lastViewPortData, 
401
                                buf, 
402
                                step, 
403
                                dataStore.getAffineTransform(), 
404
                                adjustedRotedRequest);
405
        }
406
        
407
        /*
408
         * (non-Javadoc)
409
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#draw(java.awt.Graphics2D, org.cresques.geo.ViewPortData)
410
         */
411
        private synchronized void drawBufferOnImage(Graphics2D g, ViewPortData vp, Buffer buf, double[] step, AffineTransform transf, Extent adjustedRotedRequest)
412
                throws RasterDriverException, InvalidSetViewException, ProcessInterruptedException {
413
                
414
                grid = bufferPreprocessing(buf, lastTransparency);
415
                
416
                if(lastRenderBuffer != null)
417
                        lastRenderBuffer.dispose();
418
                //Buffer filtrado para renderizar
419
                lastRenderBuffer = grid.getRasterBuf();
420
                drawer.setBuffer(lastRenderBuffer); // Buffer de datos a renderizar
421
                drawer.setStep(step); // Desplazamiento para supersampleo
422
                drawer.setBufferSize((int)Math.round(widthImage), (int)Math.round(heightImage)); // Ancho y alto del buffer
423
                Image geoImage = drawer.drawBufferOverImageObject(); // Acci?n de renderizado
424

    
425
                // Borramos el buffer de transparencia para que siempre se tenga que regenerar.
426
                lastTransparency.setAlphaBand(null);
427

    
428
                //En el caso de no tenga rotaci?n y el tama?o de pixel sea positivo en X y negativo en Y no aplicamos ninguna
429
                //transformaci?n. Esto no es necesario hacerlo, sin ello se visualiza igual. Unicamente se hace porque de esta
430
                //forma el raster resultante mejora un poco en calidad en ciertos niveles de zoom ya que al aplicar transformaciones
431
                //sobre el Graphics parece que pierde algo de calidad.
432
                if(transf.getScaleX() > 0 && transf.getScaleY() < 0 && transf.getShearX() == 0 && transf.getShearY() == 0) {
433
                        Point2D lastGraphicOffset = new Point2D.Double(adjustedRotedRequest.getULX(), adjustedRotedRequest.getULY());
434
                        ((DefaultViewPortData)vp).mat.transform(lastGraphicOffset, lastGraphicOffset);
435
                        g.drawImage(geoImage, (int) Math.round(lastGraphicOffset.getX()), (int) Math.round(lastGraphicOffset.getY()), null);
436
                        return;
437
                }
438

    
439
                /*
440
                 * Tenemos una matriz con la transformaci?n de la coordenadas de la vista a coordenadas reales vp.mat, adem?s tenemos
441
                 * la transformaci?n de coordenadas reales a coordenadas pixel (transf). Con ambas podemos obtener una matriz de trasformacion
442
                 * entre coordenadas de la vista a coordenadas pixel (transf X vp.mat). As? obtenemos la transformaci?n entre coordenadas
443
                 * de la vista y coordenadas pixel del raster. El problema es que a cada zoom la escala de la petici?n del raster varia
444
                 * por lo que habr? que calcular una matriz con la escala (escale). escale X transf X vp.mat
445
                 */
446
                double sX = Math.abs(ulPxRequest.getX() - lrPxRequest.getX()) / widthImage;
447
                double sY = Math.abs(ulPxRequest.getY() - lrPxRequest.getY()) / heightImage;
448
                AffineTransform scale = new AffineTransform(sX, 0, 0, sY, 0, 0);
449

    
450
                try {
451
                        AffineTransform at = (AffineTransform)scale.clone();
452
                        at.preConcatenate(transf);
453
                        at.preConcatenate(vp.getMat());
454
                        g.transform(at);
455
                        Point2D.Double pt = null;
456
                        //El punto sobre el que rota la imagen depende del signo de los tama?os del pixel
457
                        if(transf.getScaleX() < 0 && transf.getScaleY() < 0)
458
                                pt = new Point2D.Double(adjustedRotedRequest.maxX(), adjustedRotedRequest.maxY());
459
                        else if(transf.getScaleX() > 0 && transf.getScaleY() > 0)
460
                                pt = new Point2D.Double(adjustedRotedRequest.minX(), adjustedRotedRequest.minY());
461
                        else if(transf.getScaleX() < 0 && transf.getScaleY() > 0)
462
                                pt = new Point2D.Double(adjustedRotedRequest.maxX(), adjustedRotedRequest.minY());
463
                        else
464
                                pt = new Point2D.Double(adjustedRotedRequest.getULX(), adjustedRotedRequest.getULY());
465
                        vp.getMat().transform(pt, pt);
466
                        at.inverseTransform(pt, pt);
467
                        g.drawImage(geoImage, (int) Math.round(pt.getX()), (int) Math.round(pt.getY()), null);
468
                        g.transform(at.createInverse());
469
                } catch (NoninvertibleTransformException e) {
470
                        LoggerFactory.getLogger(getClass()).debug("Transformation error", e);
471
                }
472
                
473
                if(buf != null)
474
                        buf.dispose();
475
                
476
                return;
477
                // long t2 = new Date().getTime();
478
                // System.out.println("Renderizando Raster: " + ((t2 - t1) / 1000D) + ", secs.");
479
        }
480
        
481
        /*
482
         * (non-Javadoc)
483
         * @see org.gvsig.raster.cache.tile.provider.TileListener#tileReady(org.gvsig.raster.cache.tile.Tile)
484
         */
485
        public synchronized void tileReady(Tile loadedTile) throws TileGettingException {
486
                boolean crash = false;
487
                Boolean tiling = (Boolean)loadedTile.getDownloaderParams("Tiling");
488
                double[] step = (double[])loadedTile.getDownloaderParams("Step");
489
                AffineTransform transf = (AffineTransform)loadedTile.getDownloaderParams("AffineTransform");
490
                
491
                Extent e = RasterLocator.getManager().getDataStructFactory().
492
                createExtent(loadedTile.getUl().getX(), 
493
                                loadedTile.getUl().getY(), 
494
                                loadedTile.getLr().getX(), 
495
                                loadedTile.getLr().getY());
496
                
497
                Buffer buf = (loadedTile.getData() != null && loadedTile.getData().length > 0) ? (Buffer)loadedTile.getData()[0] : null;
498
                Buffer transparencyBuffer = (loadedTile.getData() != null && loadedTile.getData().length > 1) 
499
                                                                                ? (Buffer)loadedTile.getData()[1] : null;
500
                
501
                if(!loadedTile.dataIsLoaded()) {
502
                        if(loadedTile.getCrashImage() == null)
503
                                return;
504
                        crash = true;
505
                        buf = (Buffer)loadedTile.getCrashImage()[0];
506
                        transparencyBuffer = (Buffer)loadedTile.getCrashImage()[1];
507
                        transparencyBuffer.setDataExtent(e.toRectangle2D());
508
                } else {
509
                        if(buf == null)
510
                                return;
511
                        ColorTable tileColorTable = (loadedTile.getData() != null && loadedTile.getData().length > 2) ? (ColorTable)loadedTile.getData()[2] : null;
512
                        if(tiling == null || tiling.booleanValue()) {
513
                                if(filterList != null) 
514
                                        addTileColorTable(tileColorTable);
515
                        }
516
                }
517
                
518
                if(tiling == null || tiling.booleanValue()) {
519
                        lastTransparency.setAlphaBand(transparencyBuffer);
520
                        Grid grid = null;
521
                        try {
522
                                grid = bufferPreprocessing(buf, lastTransparency);
523
                        } catch (ProcessInterruptedException e3) {
524
                                return;
525
                        }
526
                        buf = grid.getRasterBuf();
527
                }
528
                
529
                if(tiling == null || tiling.booleanValue()) {
530
                        //Reescalado de los tiles. El tama?o en pixels de un tile no tiene pq coincidir con el de la vista.
531
                        double w = lastViewPortData.getWidth();
532
                        double h = lastViewPortData.getHeight();
533
                        if(viewDimension != null) {
534
                                w = viewDimension.getWidth();
535
                                h = viewDimension.getHeight();
536
                        }
537
                        double viewScaleW = lastViewPortData.getExtent().width() / w;
538
                        double tileScaleW = e.width() / (double)buf.getWidth();
539
                        double scaleW = viewScaleW / tileScaleW;
540
                        double viewScaleH = lastViewPortData.getExtent().height() / h;
541
                        double tileScaleH = e.height() / (double)buf.getHeight();
542
                        double scaleH = viewScaleH / tileScaleH;
543

    
544
                        ImageDrawer d = new ImageDrawer(this);
545
                        d.setBuffer(buf);
546
                        d.setStep(null);
547
                        d.setBufferSize(buf.getWidth(), buf.getHeight());
548
                        Image geoImage;
549
                        try {
550
                                geoImage = d.drawBufferOverImageObject();
551
                        } catch (ProcessInterruptedException e2) {
552
                                return;
553
                        }
554

    
555
                        lastTransparency.setAlphaBand(null);
556
                        
557
                        AffineTransform at = new AffineTransform();
558
                        at.scale(1/scaleW, 1/scaleH);
559
                        
560
                        try {
561
                                Point2D pt = new Point2D.Double(e.getULX(), e.getULY());
562
                                ((DefaultViewPortData)lastViewPortData).mat.transform(pt, pt);
563
                                at.inverseTransform(pt, pt);
564

    
565
                                lastGraphics.transform(at);
566
                                lastGraphics.drawImage(geoImage, (int) Math.round(pt.getX()), (int) Math.round(pt.getY()), null);
567
                                lastGraphics.transform(at.createInverse());
568
                                
569
                        } catch (NoninvertibleTransformException e1) {
570
                                e1.printStackTrace();
571
                        }
572
                } else {
573
                        try {
574
                                drawBufferOnImage(lastGraphics, lastViewPortData, buf, step, transf, e);
575
                        } catch (RasterDriverException e1) {
576
                                LoggerFactory.getLogger(getClass()).debug("Error loading data", e1);
577
                        } catch (InvalidSetViewException e1) {
578
                                LoggerFactory.getLogger(getClass()).debug("Invalid view", e1);
579
                        } catch (ProcessInterruptedException e1) {
580
                        }
581
                }
582
                
583
                if(!crash) { //Las im?genes de crash no se liberan ya que est?n en un hashmap global
584
                        if(buf != null)
585
                                buf.dispose();
586
                        if(transparencyBuffer != null)
587
                                transparencyBuffer.dispose();
588
                }
589
        }
590

    
591
        /**
592
         * Applies filters and transparency on the buffer and returns the grid with the modified buffer.
593
         * @param buf
594
         * @param transparency
595
         * @throws ProcessInterruptedException
596
         */
597
        private Grid bufferPreprocessing(Buffer buf, Transparency transparency) throws ProcessInterruptedException {
598
                if (dataStore != null) {
599
                        //Asignamos los datos al objeto transparencia antes de aplicar la pila de filtros para que el valor NoData sea efectivo
600
                        if (dataStore.getTransparency().getNoData().isNoDataTransparent() || transparency.existAlphaBand())
601
                                transparency.setDataBuffer(buf);
602
                        else {
603
                                transparency.setDataBuffer(null);
604
                        }
605
                        transparency.activeTransparency();
606
                } else
607
                        return null;
608

    
609
                //Aplicamos los filtros
610
                grid = new GridImpl(buf, dataStore, true);
611
                if(filterList != null) {
612
                        filterList.addEnvParam("Transparency", transparency);
613
                        grid.setFilterList(filterList);
614
                        grid.applyFilters();
615
                }
616
                
617
                //Si la lista de filtros genera bandas de transparencia se mezclan con la actual
618
                if(grid.getFilterList().getAlphaBand() != null) {
619
                        Buffer t = grid.getFilterList().getAlphaBand();
620
                        if(transparency.getAlphaBand() != null)
621
                                t = RasterLocator.getManager().getColorConversion().mergeTransparencyBuffers(t, transparency.getAlphaBand());
622
                        transparency.setAlphaBand(t);
623
                        transparency.activeTransparency();
624
                }
625
                
626
                return grid;
627
        }
628
        
629
        /**
630
         * When tiles are renderized the color table in each tile could be diferent.
631
         * In this case the color table must be replaced
632
         */
633
        //@deprecated one color table by tiled layer
634
        private void addTileColorTable(ColorTable tileColorTable) {
635
                if(tileColorTable == null)
636
                        return;
637
                else {
638
                        if(filterList.getFilterClassByID("ColorTable") == null) {
639
                                try {
640
                                        RasterFilterListManager colorTableManager = filterList.getManagerByID("ColorTable");
641
                                        Params params = filterList.createEmptyFilterParams();
642
                                        params.setParam("colorTable", tileColorTable);
643
                                        colorTableManager.addFilter(params);
644
                                } catch (FilterManagerException e) {
645
                                        e.printStackTrace();
646
                                } catch (FilterTypeException e) {
647
                                        e.printStackTrace();
648
                                }
649
                        }
650
                }
651
                /*ColorTable colorTable = null;
652
                if(tileColorTable == null)
653
                        colorTable = dataStore.getColorTable();
654
                else
655
                        colorTable = tileColorTable;
656
                if(colorTable != null) {
657
                        RasterFilterListManager colorTableManager;
658
                        try {
659
                                filterList.remove("enhanced_stretch");
660
                                colorTableManager = filterList.getManagerByID("ColorTable");
661
                                Params params = filterList.createEmptyFilterParams();
662
                                params.setParam("colorTable", colorTable);
663
                                colorTableManager.addFilter(params);
664
                        } catch (FilterManagerException e) {
665
                                e.printStackTrace();
666
                        } catch (FilterTypeException e) {
667
                                e.printStackTrace();
668
                        }
669
                }*/
670
        }
671
        
672
        /*
673
         * (non-Javadoc)
674
         * @see org.gvsig.raster.impl.grid.render.TileListener#endReading()
675
         */
676
        public void endReading() {
677
                isDrawing = false;
678
        }
679
        
680
        /*
681
         * (non-Javadoc)
682
         * @see org.gvsig.raster.impl.grid.render.TileListener#isReading()
683
         */
684
        public boolean isReading() {
685
                return isDrawing;
686
        }
687
        
688
        /*
689
         * (non-Javadoc)
690
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setReading(boolean)
691
         */
692
        public void setReading(boolean reading) {
693
                isDrawing = reading;
694
        }
695
        
696
        /**
697
         * Calculamos la petici?n en coordenadas del mundo real con la transformaci?n del raster. Esto
698
         * permite obtener las coordenadas de la petici?n con la rotaci?n, si la tiene.
699
         * @param vp
700
         * @param ldatastore
701
         * @return
702
         */
703
        private Extent request(ViewPortData vp, RasterDataStore ldatastore) {
704
                if (ldatastore.isRotated()) {
705
                        //Obtenemos las cuatro esquinas de la selecci?n que hemos hecho en la vista
706
                        Point2D ul = new Point2D.Double(vp.getExtent().minX(), vp.getExtent().maxY());
707
                        Point2D ur = new Point2D.Double(vp.getExtent().maxX(), vp.getExtent().maxY());
708
                        Point2D ll = new Point2D.Double(vp.getExtent().minX(), vp.getExtent().minY());
709
                        Point2D lr = new Point2D.Double(vp.getExtent().maxX(), vp.getExtent().minY());
710

    
711
                        //Las pasamos a coordenadas pixel del raster
712
                        ul = ldatastore.worldToRaster(ul);
713
                        ur = ldatastore.worldToRaster(ur);
714
                        ll = ldatastore.worldToRaster(ll);
715
                        lr = ldatastore.worldToRaster(lr);
716

    
717
                        //Obtenemos los valores pixel m?ximos y m?nimos para X e Y
718
                        double pxMaxX = Math.max(Math.max(ul.getX(), ur.getX()), Math.max(ll.getX(), lr.getX()));
719
                        double pxMaxY = Math.max(Math.max(ul.getY(), ur.getY()), Math.max(ll.getY(), lr.getY()));
720
                        double pxMinX = Math.min(Math.min(ul.getX(), ur.getX()), Math.min(ll.getX(), lr.getX()));
721
                        double pxMinY = Math.min(Math.min(ul.getY(), ur.getY()), Math.min(ll.getY(), lr.getY()));
722

    
723
                        //Ajustamos las coordenadas pixel al ?rea m?xima del raster
724
                        pxMinX = Math.max(pxMinX, 0);
725
                        pxMinY = Math.max(pxMinY, 0);
726
                        pxMaxX = Math.min(pxMaxX, ldatastore.getWidth());
727
                        pxMaxY = Math.min(pxMaxY, ldatastore.getHeight());
728

    
729
                        //Petici?n en coordenadas pixel
730
                        ulPxRequest = new Point2D.Double(pxMinX, pxMinY);
731
                        lrPxRequest = new Point2D.Double(pxMaxX, pxMaxY);
732

    
733
                        //Calculamos el ancho y alto del buffer sobre el que se escribe la petici?n
734
                        widthImage = ((Math.abs(lrPxRequest.getX() - ulPxRequest.getX()) * vp
735
                                        .getWidth()) / Math.abs(pxMaxX - pxMinX));
736
                        heightImage = ((Math.abs(lrPxRequest.getY() - ulPxRequest.getY()) * vp
737
                                        .getHeight()) / Math.abs(pxMaxY - pxMinY));
738

    
739
                        //Convertimos la petici?n en coordenadas pixel a petici?n en coordenadas reales.
740
                        Point2D ulWC = ldatastore.rasterToWorld(ulPxRequest);
741
                        Point2D lrWC = ldatastore.rasterToWorld(lrPxRequest);
742

    
743
                        //Ajustamos la petici?n a los limites del raster, teniendo en cuenta la rotaci?n de este.
744
                        return new ExtentImpl(ulWC, lrWC);
745
                }
746
                Extent adjustedRotedExtent = util.calculateAdjustedView(vp.getExtent(), ldatastore.getAffineTransform(), ldatastore.getWidth(), ldatastore.getHeight());
747
                widthImage = (int)Math.round(Math.abs(adjustedRotedExtent.width() * vp.getMat().getScaleX()));
748
                heightImage = (int)Math.round(Math.abs(adjustedRotedExtent.height() * vp.getMat().getScaleY()));
749
                Point2D ul = new Point2D.Double(adjustedRotedExtent.getULX(), adjustedRotedExtent.getULY());
750
                Point2D lr = new Point2D.Double(adjustedRotedExtent.getLRX(), adjustedRotedExtent.getLRY());
751
                ul = ldatastore.worldToRaster(ul);
752
                lr = ldatastore.worldToRaster(lr);
753
                ulPxRequest = new Point2D.Double(ul.getX(), ul.getY());
754
                lrPxRequest = new Point2D.Double(lr.getX(), lr.getY());
755
                return adjustedRotedExtent;
756
        }
757

    
758
        /*
759
         * (non-Javadoc)
760
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#getRenderBands()
761
         */
762
        public int[] getRenderBands() {
763
                return renderBands;
764
        }
765
        
766
        /*
767
         * (non-Javadoc)
768
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#isRenderingAsGray()
769
         */
770
        public boolean isRenderingAsGray() {
771
                int[] renderBands = getRenderBands();
772
                if ((renderBands != null) && (renderBands.length == 3) && (renderBands[0] >= 0) &&
773
                                (renderBands[0] == renderBands[1]) && (renderBands[1] == renderBands[2]))
774
                        return true;
775
                return false;
776
        }
777

    
778
        /**
779
                 * Asigna el n?mero de bandas y el orden de renderizado. Cada posici?n del vector es una banda
780
         * del buffer y el contenido de esa posici?n es la banda de la imagen que se dibujar?
781
         * sobre ese buffer. A la hora de renderizar hay que tener en cuenta que solo se renderizan las
782
         * tres primeras bandas del buffer por lo que solo se tienen en cuenta los tres primeros
783
         * elementos. Por ejemplo, el array {1, 0, 3} dibujar? sobre el Graphics las bandas 1,0 y 3 de un
784
         * raster que tiene al menos 4 bandas. La notaci?n con -1 en alguna posici?n del vector solo tiene sentido
785
         * en la visualizaci?n pero no se puede as?gnar una banda del buffer a null.
786
         * Algunos ejemplos:
787
         * <P>
788
         * {-1, 0, -1} Dibuja la banda 0 del raster en la G de la visualizaci?n.
789
         * Si replicateBand es true R = G = B sino R = B = 0
790
         * {1, 0, 3} La R = banda 1 del raster, G = 0 y B = 3
791
         * {0} La R = banda 0 del raster. Si replicateBand es true R = G = B sino G = B = 0
792
         * </P>
793
         *
794
         *
795
                 * @param renderBands: bandas y su posici?n
796
                 */
797
        public void setRenderBands(int[] renderBands) {
798
                if(        renderBands[0] != this.renderBands[0] ||
799
                        renderBands[1] != this.renderBands[1] ||
800
                        renderBands[2] != this.renderBands[2])
801
                        callVisualPropertyChanged(renderBands);
802
                this.renderBands = renderBands;
803
                if (filterList != null)
804
                        for (int i = 0; i < filterList.lenght(); i++)
805
                                (filterList.get(i)).addParam("renderBands", renderBands);
806
        }
807

    
808
        /**
809
         * Dado que la notaci?n de bandas para renderizado admite posiciones con -1 y la notaci?n del
810
         * buffer no ya que no tendria sentido. Esta funci?n adapta la primera notaci?n a la segunda
811
         * para realizar la petici?n setAreaOfInterest y cargar el buffer.
812
         * @param b Array que indica la posici?n de bandas para el renderizado
813
         * @return Array que indica la posici?n de bandas para la petici?n
814
         */
815
        public int[] formatArrayRenderBand(int[] b) {
816
                int cont = 0;
817
                for(int i = 0; i < b.length; i++)
818
                        if(b[i] >= 0)
819
                                cont ++;
820
                if(cont <= 0)
821
                        return null;
822
                int[] out = new int[cont];
823
                int pos = 0;
824
                for(int i = 0; i < cont; i++) {
825
                        while(b[pos] == -1)
826
                                pos ++;
827
                        out[i] = b[pos];
828
                        pos ++;
829
                }
830
                return out;
831
        }
832

    
833
        /*
834
         * (non-Javadoc)
835
         * @see org.gvsig.fmap.dal.coverage.grid.Render#getLastTransparency()
836
         */
837
        public Transparency getLastTransparency() {
838
                return lastTransparency;
839
        }
840
        
841
        /*
842
         * (non-Javadoc)
843
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#getLastAlphaBandNumber()
844
         */
845
        public int getLastAlphaBandNumber() {
846
                return lastAlphaBand;
847
        }
848

    
849
        /*
850
         * (non-Javadoc)
851
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setLastTransparency(org.gvsig.fmap.dal.coverage.store.props.Transparency)
852
         */
853
        public void setLastTransparency(Transparency lastTransparency) {
854
                this.lastTransparency = lastTransparency;
855
                if(this.lastTransparency != null)
856
                        this.lastTransparency.addPropertyListener(this);
857
        }
858

    
859
        /*
860
         * (non-Javadoc)
861
         * @see org.gvsig.fmap.dal.coverage.grid.Render#getFilterList()
862
         */
863
        public RasterFilterList getFilterList() {
864
                return filterList;
865
        }
866

    
867
        /*
868
         * (non-Javadoc)
869
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#getLastRenderBuffer()
870
         */
871
        public Buffer getLastRenderBuffer() {
872
                return this.lastRenderBuffer;
873
        }
874

    
875
        /*
876
         * (non-Javadoc)
877
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setLastRenderBuffer(org.gvsig.fmap.dal.coverage.dataset.Buffer)
878
         */
879
        public void setLastRenderBuffer(Buffer buf) {
880
                this.lastRenderBuffer = buf;
881
        }
882

    
883
        /*
884
         * (non-Javadoc)
885
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#setFilterList(org.gvsig.fmap.dal.coverage.grid.RasterFilterList)
886
         */
887
        public void setFilterList(RasterFilterList filterList) {
888
                this.filterList = filterList;
889
                this.filterList.addFilterListListener(this);
890
        }
891

    
892
        /*
893
         * (non-Javadoc)
894
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#existColorTable()
895
         */
896
        public boolean existColorTable() {
897
                        return (filterList.getFilterByBaseClass(ColorTableFilter.class) != null);
898
        }
899
        
900
        /*
901
         * (non-Javadoc)
902
         * @see org.gvsig.fmap.dal.coverage.grid.render.Render#getColorTable()
903
         */
904
        public ColorTable getColorTable() {
905
                if(existColorTable()) {
906
                        RasterFilter f = filterList.getFilterByBaseClass(ColorTableFilter.class);
907
                        return ((ColorTableFilter)f).getColorTable();
908
                }
909
                return null;
910
        }
911

    
912
        /**
913
         * Obtiene el grid asociado al render
914
         * @return
915
         */
916
        public Grid getGrid() {
917
                return grid;
918
        }
919

    
920
        /**
921
         * Asigna la factoria de buffer del renderizador
922
         * @param bf
923
         */
924
        public void setDataSource(RasterDataStore ds) {
925
                this.dataStore = ds;
926
        }
927

    
928
        /**
929
         * Evento activado cuando cambia una propiedad de transparencia.
930
         */
931
        public void actionValueChanged(PropertyEvent e) {
932
                callVisualPropertyChanged(new VisualPropertyEvent(e.getSource()));
933
        }
934

    
935
        /**
936
         * Evento activado cuando cambia la lista de filtros.
937
         */
938
        public void filterListChanged(FilterListChangeEvent e) {
939
                callVisualPropertyChanged(new VisualPropertyEvent(e.getSource()));
940
        }
941

    
942
        /*
943
         * (non-Javadoc)
944
         * @see org.gvsig.tools.persistence.Persistent#loadFromState(org.gvsig.tools.persistence.PersistentState)
945
         */
946
        public void loadFromState(PersistentState state)
947
                        throws PersistenceException {
948
                lastTransparency = (Transparency)state.get("lastTransparency");        
949
                renderBands = (int[])state.getIntArray("renderBands");
950
                //setFilterList((RasterFilterList)state.get("filterList"));
951
        }
952

    
953
        /*
954
         * (non-Javadoc)
955
         * @see org.gvsig.tools.persistence.Persistent#saveToState(org.gvsig.tools.persistence.PersistentState)
956
         */
957
        public void saveToState(PersistentState state) throws PersistenceException {
958
                state.set("lastTransparency", lastTransparency);
959
                state.set("renderBands", renderBands);
960
                //state.set("filterList", filterList);
961
        }
962
        
963
        public static void registerPersistence() {
964
                PersistenceManager manager = ToolsLocator.getPersistenceManager();
965
                DynStruct definition = manager.addDefinition(
966
                                DefaultRender.class,
967
                                "RasterRendering",
968
                                "RasterRendering Persistent definition",
969
                                null, 
970
                                null
971
                );
972
                definition.addDynFieldObject("lastTransparency").setClassOfValue(Transparency.class).setMandatory(false);
973
                definition.addDynFieldList("renderBands").setClassOfItems(int.class).setMandatory(false);
974
                //definition.addDynFieldObject("filterList").setClassOfValue(RasterFilterList.class).setMandatory(false);
975
        }
976
        
977
        public void setCancel(Cancellable cancel) {
978
                this.cancel = cancel;
979
        }
980
        
981
        /**
982
         * Sets buffers to null
983
         */
984
        public void dispose() {
985
                if (lastTransparency != null)
986
                        lastTransparency.dispose();
987
                if (grid != null)
988
                        grid.dispose();
989
                if (getFilterList() != null)
990
                        getFilterList().dispose();
991
                if (lastRenderBuffer != null)
992
                        lastRenderBuffer.dispose();
993
                try {
994
                        finalize();
995
                } catch (Throwable e) {
996
                }
997
        }
998
        
999
        /*
1000
         * (non-Javadoc)
1001
         * @see java.lang.Object#finalize()
1002
         */
1003
        protected void finalize() throws Throwable {
1004
                grid                     = null;
1005
                dataStore                = null;
1006
                renderBands              = null;
1007
        drawer                   = null;
1008
                lastTransparency         = null;
1009
                filterList               = null;
1010
        lastRenderBuffer         = null;
1011
        ulPxRequest              = null;
1012
        lrPxRequest              = null;
1013
                lastGraphics             = null;
1014
                lastViewPortData         = null;
1015
                viewDimension            = null;
1016
                
1017
                if(visualPropertyListener != null) {
1018
                        visualPropertyListener.clear();
1019
                        visualPropertyListener = null;
1020
                }
1021
                super.finalize();
1022
        }
1023

    
1024
}