Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.rastertools.colortable;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import java.awt.geom.Dimension2D;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.gui.beans.imagenavigator.IClientImageNavigator;

import org.gvsig.raster.datastruct.Extent;

import org.gvsig.raster.datastruct.ViewPortData;

import org.gvsig.raster.grid.GridPalette;

import org.gvsig.raster.grid.GridTransparency;

import org.gvsig.raster.grid.filter.RasterFilterList;

import org.gvsig.raster.grid.filter.RasterFilterListManager;

import org.gvsig.raster.grid.filter.bands.ColorTableListManager;

import org.gvsig.raster.grid.filter.enhancement.LinearEnhancementFilter;

import org.gvsig.raster.grid.filter.statistics.TailTrimFilter;

import org.gvsig.raster.grid.render.Rendering;

import org.gvsig.rastertools.colortable.ui.ColorTablePanel;

import com.iver.cit.gvsig.fmap.ViewPort;

/**

 *

 * @version 27/06/2007

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class ColorTableListener implements IClientImageNavigator {

        private ColorTablePanel colorTablePanel = null;

        /**

         * Construye un ColorTableListener

         * @param colorTablePanel

         */

        public ColorTableListener(ColorTablePanel colorTablePanel) {

                this.colorTablePanel = colorTablePanel;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.imagenavigator.IClientImageNavigator#drawImage(java.awt.Graphics2D, double, double, double, double, double, int, int)

         */

        public void drawImage(Graphics2D g, double x1, double y1, double x2, double y2, double zoom, int width, int height) {

                if (colorTablePanel.getLayer() == null)

                        return;

                Rendering rendering = ((FLyrRasterSE) colorTablePanel.getLayer()).getRender();

                if ((rendering == null) || ((x2 - x1) == 0.0) || ((y2 - y1) == 0.0))

                        return;

                rendering.getFilterList().pushStatus();

                ViewPort vp = new ViewPort(null);

                Dimension2D dimension = new Dimension(width, height);

                Extent extent = new Extent(x1, y1, x2, y2);

                ViewPortData vp2 = new ViewPortData(vp.getProjection(), extent, dimension);

                vp2.setMat(new AffineTransform(zoom, 0.0, 0.0, zoom, -x1*zoom, -y1*zoom));

                Extent extent2 = ((FLyrRasterSE) colorTablePanel.getLayer()).getDatasource().getExtent();

                AffineTransform trans = g.getTransform();

                // Calcular cuanto sobresale la imagen y rectificar ese desplazamiento

                if (y1 > extent2.maxY()) {

                        g.translate(0.0, (-(extent2.maxY() - y1) * zoom)*2.0);

                }

                GridTransparency lastTransparency = rendering.getLastTransparency();

                applyColorTable(rendering);

                rendering.draw(g, vp2);

                rendering.setLastTransparency(lastTransparency);

                g.setTransform(trans);

                rendering.getFilterList().popStatus();

        }

        /**

         * Aqui se aplica el estado de las tablas de color al rendering pasado

         * por parametro

         * @param rendering

         * @return

         */

        public void applyColorTable(Rendering rendering) {

                RasterFilterList filterList = rendering.getFilterList();

                RasterFilterListManager stackManager = new RasterFilterListManager(filterList);

                ColorTableListManager cManager = (ColorTableListManager) stackManager.getManagerByClass(ColorTableListManager.class);

                filterList.remove(LinearEnhancementFilter.class);

                filterList.remove(TailTrimFilter.class);

                GridPalette gridPalette = colorTablePanel.getGridPalette();

                cManager.addColorTableFilter(gridPalette);

                GridTransparency gridTransparency = new GridTransparency();

                gridTransparency.setTransparencyRangeList(gridPalette.getTransparencyRange());

                gridTransparency.activeTransparency();

                rendering.setLastTransparency(gridTransparency);

        }

        /**

         * Que acciones se ejecutaran al haber presionado el bot?n aceptar o aplicar

         */

        public void accept() {

                /*

                IWindow windows[] = PluginServices.getMDIManager().getAllWindows();

                for (int i=0;i<windows.length;i++) {

                        if(windows[i] instanceof IView)

                                ((IView)windows[i]).getTOC().refresh();

                }

                */

                Rendering rendering = ((FLyrRasterSE) getColorTablePanel().getLayer()).getRender();

                applyColorTable(rendering);

                getColorTablePanel().getLayer().getMapContext().invalidate();

                // TODO: Mirar pq hay que poner invalidate dos veces para que se cargue bien

                // el TOC

                getColorTablePanel().getLayer().getMapContext().invalidate();

                getColorTablePanel().getLayer().getMapContext().invalidate();

        }

        /**

         * Devuelve el panel de ColorTable

         * @return

         */

        public ColorTablePanel getColorTablePanel() {

                return colorTablePanel;

        }

}