Application: gvSIG desktop

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

 *

 * Copyright (C) 2006 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.filter;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.util.ArrayList;

import java.util.EventObject;

import java.util.Hashtable;

import javax.swing.JFileChooser;

import javax.swing.ListModel;

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

import org.gvsig.gui.beans.propertiespanel.PropertiesComponent;

import org.gvsig.gui.beans.propertiespanel.PropertiesComponentListener;

import org.gvsig.gui.beans.propertiespanel.PropertyStruct;

import org.gvsig.gui.beans.treelist.event.TreeListChangeEvent;

import org.gvsig.gui.beans.treelist.event.TreeListEvent;

import org.gvsig.gui.beans.treelist.listeners.TreeListChangeListener;

import org.gvsig.gui.beans.treelist.listeners.TreeListComponentListener;

import org.gvsig.raster.IProcessActions;

import org.gvsig.raster.RasterLibrary;

import org.gvsig.raster.dataset.GeoRasterWriter;

import org.gvsig.raster.dataset.IRasterDataSource;

import org.gvsig.raster.dataset.Params;

import org.gvsig.raster.dataset.Params.Param;

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

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

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

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

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

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

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

import org.gvsig.raster.hierarchy.IRasterRendering;

import org.gvsig.raster.util.ExtendedFileFilter;

import org.gvsig.raster.util.RasterNotLoadException;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.rastertools.filter.ui.FilterDialog;

import com.iver.andami.PluginServices;

import com.iver.andami.Utilities;

import com.iver.cit.gvsig.addlayer.fileopen.FileOpenWizard;

/**

 * <code>FilterListener</code> es la clase donde se procesar? gran parte del

 * c?digo que controla el panel para el manejo de un layer en la aplicaci?n de

 * filtros.

 *

 * @version 24/05/2007

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

 */

public class FilterListener implements ActionListener, TreeListComponentListener, TreeListChangeListener, PropertiesComponentListener, FilterUIListener, IProcessActions {

        private FilterDialog filterDialog  = null;

        private int          actualParam  = -1;

        private ArrayList    paramsList   = new ArrayList();

        /**

         * Cuando est? a false genera un TIFF de salida. Cuando est? a true un JPEG2000

         */

        private boolean      compress = false;

        public class ParamStruct {

                String filterName = null;

                Params filterParam = null;

                Class filterClass = null;

                /**

                 * @return the filterName

                 */

                public String getFilterName() {

                        return filterName;

                }

                /**

                 * @param filterName the filterName to set

                 */

                public void setFilterName(String filterName) {

                        this.filterName = filterName;

                }

                /**

                 * @return the filterParam

                 */

                public Params getFilterParam() {

                        return filterParam;

                }

                /**

                 * @param filterParam the filterParam to set

                 */

                public void setFilterParam(Params filterParam) {

                        this.filterParam = filterParam;

                }

                /**

                 * @return the filterClass

                 */

                public Class getFilterClass() {

                        return filterClass;

                }

                /**

                 * @param filterClass the filterClass to set

                 */

                public void setFilterClass(Class filterClass) {

                        this.filterClass = filterClass;

                }

        }

        /**

         * Construye un FilterListener especificando el FilterPanel asociado

         * @param filterDialog

         */

        public FilterListener(FilterDialog filterDialog) {

                this.filterDialog = filterDialog;

        }

        /**

         * Asigna un valor para el par?metro que informa de si el raster de salida hay

         * que comprimirlo o no. Este valor es necesario cuando el raster de salida

         * es mayor de 4G ya que no se puede crear un tiff tan grande.

         * @param compress true para comprimir el raster de salida y false para no hacerlo.

         */

        public void setCompress(boolean compress) {

                this.compress = compress;

        }

        /**

         * Asignamos los valores del PropertiesComponent al Params seleccionado

         */

        public void RefreshDataProperties() {

                if (actualParam == -1)

                        return;

                ArrayList listValues = getFilterDialog().getPropertiesComponent().getValues();

                Params params = ((ParamStruct) paramsList.get(actualParam)).getFilterParam();

                for (int j = 0; j < listValues.size(); j++) {

                        PropertyStruct ps = (PropertyStruct) listValues.get(j);

                        params.changeParamValue(ps.getKey(), ps.getNewValue());

                }

        }

        /**

         * Obtener la posici?n del Param seleccionado en el ArrayList

         * @param filterName

         * @return

         */

        private int getParamSelected(String filterName) {

                for (int i = 0; i < paramsList.size(); i++) {

                        if (((ParamStruct) paramsList.get(i)).getFilterName().equals(filterName))

                                return i;

                }

                return -1;

        }

        /**

         * Cambiar el panel de propiedades central por el nuevo panel, segun el filtro

         * seleccionado que se pasa por par?metro.

         * @param filter

         */

        public void changePanel(String filter) {

                int posParam = getParamSelected(filter);

                RefreshDataProperties();

                actualParam = posParam;

                PropertiesComponent propertiesComponent = new PropertiesComponent();

                if (posParam != -1) {

                        Params params = ((ParamStruct) paramsList.get(actualParam)).getFilterParam();

                        if (params != null) {

                                Param paramPanel = params.getParamById("Panel");

                                if(paramPanel != null && paramPanel.defaultValue instanceof RegistrableFilterListener)

                                        ((RegistrableFilterListener)paramPanel.defaultValue).addFilterUIListener(this);

                                RasterToolsUtil.loadPropertiesFromWriterParams(propertiesComponent, params, new String[]{"FilterName"});

                        }

                }

                getFilterDialog().setNewPropertiesComponent(propertiesComponent, filter);

        }

        /**

         * A?adir un nuevo Params a la lista de Params que podemos manejar. Un Params

         * equivale a un filtro cargado. El hecho de trabajar con Params y no con

         * filtros, simplifica totalmente el panel. Sin tener que depender de los

         * filtros nada m?s que para el momento de dibujado o guardado.

         * @param name

         * @param params

         * @param classFilter

         */

        public void addNewParam(String name, Params params, Class classFilter) {

                ParamStruct param = new ParamStruct();

                param.setFilterName(name);

                param.setFilterParam(params);

                param.setFilterClass(classFilter);

                paramsList.add(param);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.propertiespanel.PropertiesComponentListener#actionChangeProperties(java.util.EventObject)

         */

        public void actionChangeProperties(EventObject e) {

                RefreshDataProperties();

                getFilterDialog().refreshPreview();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.treelist.listeners.TreeListChangeListener#actionChangeSelection(org.gvsig.gui.beans.treelist.event.TreeListChangeEvent)

         */

        public void actionChangeSelection(TreeListChangeEvent e) {

                changePanel(e.getItem());

        }

        /*

         * (non-Javadoc)

         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

         */

        public void actionPerformed(ActionEvent e) {

                getFilterDialog().refreshPreview();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.treelist.listeners.TreeListComponentListener#elementAdded(org.gvsig.gui.beans.treelist.event.TreeListEvent)

         */

        public void elementAdded(TreeListEvent e) {

                getFilterDialog().refreshPreview();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.treelist.listeners.TreeListComponentListener#elementMoved(org.gvsig.gui.beans.treelist.event.TreeListEvent)

         */

        public void elementMoved(TreeListEvent e) {

                getFilterDialog().refreshPreview();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.treelist.listeners.TreeListComponentListener#elementRemoved(org.gvsig.gui.beans.treelist.event.TreeListEvent)

         */

        public void elementRemoved(TreeListEvent e) {

                getFilterDialog().refreshPreview();

        }

        /**

         * @return the paramsList

         */

        public ArrayList getParamsList() {

                return paramsList;

        }

        /**

         * Devuelve la ruta del fichero donde se va a guardar, en caso de guardarse

         * en memoria, calcula el nombre sin preguntar y devuelve la ruta.

         * @return

         */

        public String getFileSelected() {

                String path = "";

                if (getFilterDialog().getRadioFileGenerate().isSelected()) {

                        JFileChooser chooser = new JFileChooser(FileOpenWizard.getLastPath());

                        chooser.setDialogTitle(PluginServices.getText(this, "seleccionar_fichero"));

                        //A?adimos las extensiones que hayan sido registradas en el driver

                        String[] extList = GeoRasterWriter.getDriversExtensions();

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

                                chooser.addChoosableFileFilter(new ExtendedFileFilter(extList[i]));

                        if (chooser.showOpenDialog(getFilterDialog()) != JFileChooser.APPROVE_OPTION)

                                return null;

                        FileOpenWizard.setLastPath(chooser.getSelectedFile().getPath().substring(0, chooser.getSelectedFile().getPath().lastIndexOf(File.separator)));

                        ExtendedFileFilter fileFilter = (ExtendedFileFilter) chooser.getFileFilter();

                        path = fileFilter.getNormalizedFilename(chooser.getSelectedFile());

                } else {

                        String file = getFilterDialog().getMainPanel().getFilenameTextField().getText();

                        if(file.compareTo(RasterLibrary.getOnlyLayerName()) == 0)

                                RasterLibrary.usesOnlyLayerName();

                        if(!compress)

                                path = Utilities.createTempDirectory() + File.separator + file + ".tif";

                        else

                                path = Utilities.createTempDirectory() + File.separator + file + ".jp2";

                        filterDialog.updateNewLayerText();

                }

                return path;

        }

        /**

         * Aqui se seleccionan que filtros se van a aplicar y se devuelven en forma

         * de ArrayList tanto para el dibujado como cuando aceptan o aplican el panel.

         * @param rendering

         * @return

         */

        public ArrayList applyFilters(IRasterRendering rendering) {

                ArrayList listFilterUsed = new ArrayList();

                RasterFilterList filterList = new RasterFilterList();

                filterList.setEnv(rendering.getRenderFilterList().getEnv());

                RasterFilterListManager stackManager = new RasterFilterListManager(filterList);

                // Conservamos filtros no visibles ya existentes

                ArrayList filtersInit = getFilterDialog().getFilterStatus();

                for (int i = 0; i < filtersInit.size(); i++) {

                        // Si es visible no hacemos nada

                        if (((RasterFilter) filtersInit.get(i)).isVisible())

                                continue;

                        RasterFilter obj = null;

                        for (int j = 0; j < stackManager.getRasterFilterList().size(); j++) {

                                Class classFilter = (Class) stackManager.getRasterFilterList().get(j);

                                try {

                                        obj = (RasterFilter) classFilter.newInstance();

                                        if (obj.getName().equals(((RasterFilter) filtersInit.get(i)).getName()))

                                                break;

                                } catch (InstantiationException e) {

                                        RasterToolsUtil.messageBoxError("error_creando_filtro", this, e);

                                } catch (IllegalAccessException e) {

                                        RasterToolsUtil.messageBoxError("error_creando_filtro", this, e);

                                }

                        }

                        // Si no encontramos el filtro apropiado, nos olvidamos de el

                        if (obj == null)

                                continue;

                        // Si no es visible tenemos que conservar el filtro

                        try {

                                Params params = (Params) ((RasterFilter) filtersInit.get(i)).getUIParams(((RasterFilter) filtersInit.get(i)).getName()).clone();

                                // A?ado el parametro RenderBands a los parametros del filtro

                                String rgb = rendering.getRenderBands()[0] + " " + rendering.getRenderBands()[1] + " " + rendering.getRenderBands()[2];

                                params.setParam("RenderBands", rgb, 0, null);

                                ParamStruct newParam = new ParamStruct();

                                newParam.setFilterClass(obj.getClass());

                                newParam.setFilterName(((RasterFilter) filtersInit.get(i)).getName());

                                newParam.setFilterParam(params);

                                listFilterUsed.add(newParam);

                        } catch (CloneNotSupportedException e) {

                        }

                }

                // Metemos los filtros seleccionados en el panel

                ListModel list = getFilterDialog().getMainPanel().getTreeListContainer().getListModel();

                for (int i = 0; i < list.getSize(); i++) {

                        Hashtable hastTable = getFilterDialog().getMainPanel().getTreeListContainer().getMap();

                        for (int j = 0; j < paramsList.size(); j++) {

                                boolean active = true;

                                Param param = ((ParamStruct) paramsList.get(j)).getFilterParam().getParamById("enabled");

                                if ((param != null) &&

                                        param.defaultValue instanceof Boolean &&

                                        ((((Boolean)param.defaultValue).booleanValue()) == false))

                                        active = false;

                                if (active) {

                                        if (((ParamStruct) paramsList.get(j)).getFilterName().equals(hastTable.get(list.getElementAt(i)))) {

                                                try {

                                                        Params params = (Params) ((ParamStruct) paramsList.get(j)).getFilterParam().clone();

                                                        // A?ado el parametro RenderBands a los parametros del filtro

                                                        String rgb = rendering.getRenderBands()[0] + " " + rendering.getRenderBands()[1] + " " + rendering.getRenderBands()[2];

                                                        params.setParam("RenderBands", rgb, 0, null);

                                                        ParamStruct newParam = new ParamStruct();

                                                        newParam.setFilterClass(((ParamStruct) paramsList.get(j)).getFilterClass());

                                                        newParam.setFilterName(((ParamStruct) paramsList.get(j)).getFilterName());

                                                        newParam.setFilterParam(params);

                                                        listFilterUsed.add(newParam);

                                                } catch (CloneNotSupportedException e) {

                                                }

                                        }

                                }

                        }

                }

                return listFilterUsed;

        }

        /*

         * (non-Javadoc)

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

         */

        public void drawImage(IRasterRendering rendering) {

                rendering.setRenderBands(((FLyrRasterSE) getFilterDialog().getLayer()).getRenderBands());

                rendering.getRenderFilterList().clear();

                if (getFilterDialog().getCBShowFilters().isSelected()) {

                        RasterFilterList filterList = rendering.getRenderFilterList();

                        RasterFilterListManager stackManager = new RasterFilterListManager(filterList);

                        ArrayList listFilterUsed = applyFilters(rendering);

                        ArrayList exc = new ArrayList();

                        for (int i = 0; i < listFilterUsed.size(); i++) {

                                IRasterFilterListManager filterManager = stackManager.getManagerByFilterClass(((ParamStruct) listFilterUsed.get(i)).getFilterClass());

                                try {

                                        filterManager.addFilter(((ParamStruct) listFilterUsed.get(i)).getFilterClass(), ((ParamStruct) listFilterUsed.get(i)).getFilterParam());

                                } catch (FilterTypeException e) {

                                        exc.add(e);

                                }

                        }

                        if(exc.size() != 0) {

                                RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_adding_filters"), this, exc);

                                exc.clear();

                        }

                }

        }

        /**

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

         */

        public void accept() {

                IRasterDataSource raster = ((FLyrRasterSE) getFilterDialog().getLayer()).getDataSource();

                if (raster == null)

                        return;

                String path = null;

                if (!getFilterDialog().getRadioOnlyView().isSelected()) {

                        path = getFileSelected();

                        if (path == null)

                                return;

                }

                //Rendering rendering = ((FLyrRasterSE) getFilterPanel().getLayer()).getRender();

                IRasterRendering rendering = (IRasterRendering) getFilterDialog().getLayer();

                // Array para guardar los filtros que se van a usar en forma de ParamStruct

                ArrayList listFilterUsed = applyFilters(rendering);

                if (filterDialog.getRadioOnlyView().isSelected()) {

                        try {

                                FilterProcess.addSelectedFilters(rendering.getRenderFilterList(), listFilterUsed);

                                ((FLyrRasterSE) getFilterDialog().getLayer()).setRenderFilterList(rendering.getRenderFilterList());

                                getFilterDialog().getLayer().getMapContext().invalidate();

                        } catch (FilterTypeException e) {

                                RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_adding_filters"), this, e);

                        }

                } else {

                        FilterProcess filterProcess = new FilterProcess();

                        filterProcess.setActions(this);

                        filterProcess.addParam("rendering", rendering);

                        filterProcess.addParam("filename", path);

                        filterProcess.addParam("rasterdatasource", raster);

                        filterProcess.addParam("listfilterused", listFilterUsed);

                        filterProcess.start();

                }

        }

        /**

         * Devuelve el FilterPanel asociado al FilterListener

         * @return

         */

        public FilterDialog getFilterDialog() {

                return filterDialog;

        }

        /**

         * Acciones que se realizan al finalizar de crear los recortes de imagen.

         * Este m?todo es llamado por el thread TailRasterProcess al finalizar.

         */

        public void loadLayerInToc(String fileName) {

                if (!getFilterDialog().getRadioNewLayer().isSelected())

                        return;

                if(!new File(fileName).exists())

                        return;

                try {

                        RasterToolsUtil.loadLayer(getFilterDialog().getViewName(), fileName, null);

                } catch (RasterNotLoadException e) {

                        RasterToolsUtil.messageBoxError("error_cargar_capa", this, e);

                }

                if(filterDialog != null)

                        filterDialog.updateNewLayerText();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.FilterUIListener#actionValuesCompleted(java.util.EventObject)

         */

        public void actionValuesCompleted(EventObject e) {

                actionChangeProperties(e);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.IProcessActions#end(java.lang.Object)

         */

        public void end(Object param) {

                loadLayerInToc((String) param);

        }

        public void interrupted() {}

}