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.dataset.InvalidSetViewException;

import org.gvsig.raster.datastruct.Extent;

import org.gvsig.raster.datastruct.ViewPortData;

import org.gvsig.raster.grid.GridPalette;

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

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

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

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.andami.messages.NotificationManager;

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 (getColorTablePanel().getLayer() == null)

                        return;

                Rendering rendering = ((FLyrRasterSE) getColorTablePanel().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()).getBufferFactory().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);

                }

                applyColorTable(rendering, true);

                try {

                        rendering.draw(g, vp2);

                } catch (ArrayIndexOutOfBoundsException e) {

                        NotificationManager.addError("Error en el renderizado de la mini-imagen del panel de tabla de color.", e);

                } catch (InvalidSetViewException e) {

                        NotificationManager.addError("Error asignando la vista en el renderizado de la mini-imagen del panel de tabla de color.", e);

                } catch (InterruptedException e) {

                        NotificationManager.addWarning("Dibujado de la preview detenido por el usuario.", e);

                }

                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, boolean isPreview) {

                RasterFilterList filterList = rendering.getFilterList();

                RasterFilterListManager manager = new RasterFilterListManager(filterList);

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

                filterList.remove(ColorTableFilter.class);

                if (getColorTablePanel().getCheckBoxEnabled().isSelected()) {

                        filterList.remove(LinearEnhancementFilter.class);

                        filterList.remove(TailTrimFilter.class);

                        GridPalette gridPalette = colorTablePanel.getGridPalette();

                        cManager.addColorTableFilter(gridPalette);

                        if (!isPreview)

                                ((FLyrRasterSE) getColorTablePanel().getLayer()).setLastLegend(gridPalette);

                }

        }

        /**

   * Acciones que se ejecutaran al haber presionado el bot?n aceptar o aplicar

   */

        public void accept() {

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

                applyColorTable(rendering, false);

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

        }

        /**

   * Devuelve el panel de ColorTable

   * @return

   */

        public ColorTablePanel getColorTablePanel() {

                return colorTablePanel;

        }

}