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.ui;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.util.ArrayList;

import java.util.Hashtable;

import javax.swing.BorderFactory;

import javax.swing.ButtonGroup;

import javax.swing.DefaultListModel;

import javax.swing.JCheckBox;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import org.gvsig.fmap.layers.FLyrRasterSE;

import org.gvsig.gui.beans.buttonspanel.ButtonsPanel;

import org.gvsig.gui.beans.defaultbuttonspanel.DefaultButtonsPanel;

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

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

import org.gvsig.gui.beans.treelist.TreeListContainer;

import org.gvsig.raster.dataset.Params;

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

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.render.Rendering;

import org.gvsig.raster.shared.Extent;

import org.gvsig.rastertools.filter.FilterListener;

import org.gvsig.rastertools.filter.FilterListener.ParamStruct;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.project.documents.view.gui.View;

/**

 * <code>FilterPanel</code> es el panel para filtros donde se construye sus

 * componentes visuales b?sicos.

 *

 * @version 18/05/2007

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

 */

public class FilterPanel extends DefaultButtonsPanel {

        private static final long                serialVersionUID = -5406900542488229074L;

        private JCheckBox                                                jCBShowFilters = null;

        private JPanel                                                        jPanelOptions = null;

        private JPanel                                                        jPreview = null;

        private JRadioButton                                jRBFileGenerate = null;

        private JRadioButton                                jRBNewLayer = null;

        private JRadioButton                                jRBOnlyView = null;

        private JRadioButton                                jRBOpenMemory = null;

        private ImageNavigator                        imageNavigator = null;

        private PropertiesComponent        propertiesComponent = null;

        private TreeListContainer                treeListContainer = null;

        private FilterListener                        filterListener = null;

        private FLayer                                                         fLayer = null;

        private String                                                        viewName = null;

        private ArrayList                                                filterStatus = null;

        /**

         * Constructor de un FilterPanel

         */

        public FilterPanel() {

                super(ButtonsPanel.BUTTONS_ACCEPTCANCELAPPLY);

                this.setLayout(new BorderLayout(5, 5));

                initialize();

                getPropertiesComponent();

                translate();

        }

        /**

         * Seccion donde ir?n todas las traducciones invariables del componente

         */

        private void translate() {

                getCBShowFilters().setText(PluginServices.getText(this, "aplicar_vista_previa"));

                getRadioOnlyView().setText(PluginServices.getText(this, "solo_visualizacion"));

                getRadioFileGenerate().setText(PluginServices.getText(this, "generar_fichero"));

                getRadioNewLayer().setText(PluginServices.getText(this, "capa_nueva"));

                getRadioOpenMemory().setText(PluginServices.getText(this, "abrir_memoria"));

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                this.add(getTreeListContainer(), BorderLayout.WEST);

                this.add(getPPreview(), BorderLayout.EAST);

                menuBuild();

        }

        /**

         * Construye el arbol para el men? de filtros disponibles

         */

        private void menuBuild() {

                Hashtable keys = new Hashtable();

                RasterFilterList filterList = new RasterFilterList();

                RasterFilterListManager stackManager = new RasterFilterListManager(filterList);

                int count = 0;

                boolean error;

                RasterFilter obj = null;

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

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

                        error = true;

                        try {

                                obj = (RasterFilter) classFilter.newInstance();

                                error = false;

                        } catch (InstantiationException e) {

                                e.printStackTrace();

                        } catch (IllegalAccessException e) {

                                e.printStackTrace();

                        }

                        if (!error) {

                                if (!keys.containsKey(new String(obj.getGroup()))) {

                                        keys.put(new String(obj.getGroup()), obj);

                                        getTreeListContainer().addClass(new String(obj.getGroup()), count);

                                        count++;

                                }

                                getFilterListener().addNewParam(obj.getName(), initFilterParam(obj.getUIParams()), classFilter);

                                getTreeListContainer().addEntry(PluginServices.getText(this, obj.getName()), obj.getGroup(), obj.getName());

                        }

                }

                getTreeListContainer().getTree().expandRow(0);

        }

        /**

         * Sirve para a?adir mas parametros genericos por defecto al panel, de momento

         * solo he puesto para activar o desactivar un filtro.

         * @param params

         * @return

         */

        private Params initFilterParam(Params params) {

                params.setParam(PluginServices.getText(this, "enabled"), true + "", Params.CHECK, null);

                Param param = params.getParamById(PluginServices.getText(this, "enabled"));

                params.getParams().remove(params.getParams().size() - 1);

                params.getParams().add(0, param);

                return params;

        }

        /**

         * This method initializes jPanel        

         * @return javax.swing.JPanel        

         */

        public TreeListContainer getTreeListContainer() {

                if (treeListContainer == null) {

                        treeListContainer = new TreeListContainer();

                        treeListContainer.getTree().expandRow(0);

                        treeListContainer.addTreeListListener(getFilterListener());

                        treeListContainer.addChangeSelectionListener(getFilterListener());

                }

                return treeListContainer;

        }

        /**

         * Obtener el PropertiesComponent del panel de filtros, en caso de no existir,

         * lo crea.

         * @return

         */

        public PropertiesComponent getPropertiesComponent() {

                if (propertiesComponent == null) {

                        propertiesComponent = new PropertiesComponent();

                        this.add(propertiesComponent, BorderLayout.CENTER);

                        propertiesComponent.addStateChangedListener(getFilterListener());

                }

                return propertiesComponent;

        }

        /**

         * Devuelve el panel donde estar? el widget de preview

         * @return

         */

        private JPanel getPPreview() {

                if (jPreview == null) {

                        jPreview = new JPanel();

                        JPanel jsubpanel = new JPanel();

                        JPanel jsubpanel2 = new JPanel();

                        jsubpanel.setBorder(javax.swing.BorderFactory.createTitledBorder(null, PluginServices.getText(this, "vista_previa"), javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                        jsubpanel.setLayout(new BorderLayout());

                        jsubpanel2.setBorder(javax.swing.BorderFactory.createEmptyBorder(8, 8, 8, 8));

                        jsubpanel2.setLayout(new BorderLayout());

                        jsubpanel.setPreferredSize(new Dimension(192, 192));

                        jsubpanel.setMinimumSize(new Dimension(192, 192));

                        jsubpanel.setMaximumSize(new Dimension(192, 192));

                        jsubpanel2.add(getImageNavigator(), BorderLayout.CENTER);

                        jsubpanel.add(jsubpanel2, BorderLayout.CENTER);

                        jPreview.setLayout(new javax.swing.BoxLayout(jPreview, javax.swing.BoxLayout.Y_AXIS));

                        jPreview.add(jsubpanel);

                        jPreview.add(panelOptions());

                        panelOptions().setPreferredSize(new Dimension(192, 132));

                        panelOptions().setMinimumSize(new Dimension(192, 132));

                        panelOptions().setMaximumSize(new Dimension(192, 132));

                }

                return jPreview;

        }

        /**

         * @return the jLabelShowFilters

         */

        public JCheckBox getCBShowFilters() {

                if (jCBShowFilters == null) {

                        jCBShowFilters = new JCheckBox();

                        jCBShowFilters.addActionListener(getFilterListener());

                        jCBShowFilters.setSelected(true);

                }

                return jCBShowFilters;

        }

        /**

         * Devuelve el Widget del preview, en caso de no existir lo crea.

         * @return

         */

        private ImageNavigator getImageNavigator() {

                if (imageNavigator == null) {

                        imageNavigator = new ImageNavigator(getFilterListener());

                        imageNavigator.setFocusable(true);

                        imageNavigator.setBorder(javax.swing.BorderFactory.createLineBorder(java.awt.Color.gray, 1));

                }

                return imageNavigator;

        }

        /**

         * Devuelve el panel de Opciones, en caso de no existir, lo crea.

         * @return

         */

        private JPanel panelOptions() {

                if (jPanelOptions == null) {

                        JPanel jPanel2 = null;

                        ButtonGroup buttonGroup1;

                        ButtonGroup buttonGroup2;

                        java.awt.GridBagConstraints gridBagConstraints;

                        buttonGroup1 = new javax.swing.ButtonGroup();

                        buttonGroup2 = new ButtonGroup();

                        jPanelOptions = new JPanel();

                        jPanel2 = new JPanel();

                        jPanelOptions.setLayout(new java.awt.GridBagLayout());

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 1;

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(2, 2, 2, 2);

                        jPanelOptions.add(getCBShowFilters(), gridBagConstraints);

                        buttonGroup1.add(getRadioOnlyView());

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 2;

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        jPanelOptions.add(getRadioOnlyView(), gridBagConstraints);

                        buttonGroup1.add(getRadioNewLayer());

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 3;

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        jPanelOptions.add(getRadioNewLayer(), gridBagConstraints);

                        jPanel2.setLayout(new java.awt.GridBagLayout());

                        jPanel2.setBorder(BorderFactory.createTitledBorder(""));

                        buttonGroup2.add(getRadioFileGenerate());

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        jPanel2.add(getRadioFileGenerate(), gridBagConstraints);

                        buttonGroup2.add(getRadioOpenMemory());

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 1;

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        jPanel2.add(getRadioOpenMemory(), gridBagConstraints);

                        gridBagConstraints = new java.awt.GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 4;

                        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        jPanelOptions.add(jPanel2, gridBagConstraints);

                }

                return jPanelOptions;

        }

        /**

         * Devuelve el JRadioButton de generar fichero 

         * @return

         */

        public JRadioButton getRadioFileGenerate() {

                if (jRBFileGenerate == null) {

                        jRBFileGenerate = new JRadioButton();

                        jRBFileGenerate.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBFileGenerate.setMargin(new java.awt.Insets(0, 0, 0, 0));

                }

                return jRBFileGenerate;

        }

        /**

         * Devuelve el JRadioButton de Solo vista

         * @return

         */

        public JRadioButton getRadioOnlyView() {

                if (jRBOnlyView == null) {

                        jRBOnlyView = new JRadioButton();

                        jRBOnlyView.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBOnlyView.setMargin(new java.awt.Insets(0, 0, 0, 0));

                }

                return jRBOnlyView;

        }

        /**

         * Devuelve el JRadioButton de nueva capa

         * @return

         */

        public JRadioButton getRadioNewLayer() {

                if (jRBNewLayer == null) {

                        jRBNewLayer = new JRadioButton();

                        jRBNewLayer.setSelected(true);

                        jRBNewLayer.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBNewLayer.setMargin(new java.awt.Insets(0, 0, 0, 0));

                        jRBNewLayer.addItemListener(new java.awt.event.ItemListener() {

                                public void itemStateChanged(java.awt.event.ItemEvent evt) {

                                        jRadioButton2ItemStateChanged(evt);

                                }

                        });

                }

                return jRBNewLayer;

        }

        /**

         * Devuelve el JRadioButton de Abrir en memoria

         * @return

         */

        public JRadioButton getRadioOpenMemory() {

                if (jRBOpenMemory == null) {

                        jRBOpenMemory = new JRadioButton();

                        jRBOpenMemory.setSelected(true);

                        jRBOpenMemory.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBOpenMemory.setMargin(new java.awt.Insets(0, 0, 0, 0));

                }

                return jRBOpenMemory;

        }

        /**

         * Devuelve el componente <code>FilterListener</code>, que contendr? el

         * proceso en si del panel

         */

        private FilterListener getFilterListener() {

                if (filterListener == null) {

                        filterListener = new FilterListener(this);

                }

                return filterListener;

        }

        /**

         * Devuelve el FLayer asignado al panel

         * @return

         */

        public FLayer getLayer() {

                return fLayer;

        }

        /**

         * Definir el FLayer del panel, haciendo todas las cargas necesarias despues

         * de especificarlo.

         * @param layer

         */

        public void setLayer(FLayer layer) {

                this.fLayer = layer;

                View view = (View) PluginServices.getMDIManager().getActiveWindow();

                viewName = PluginServices.getMDIManager().getWindowInfo(view).getTitle();

                Extent extent2 = ((FLyrRasterSE) fLayer).getDatasource().getExtent();

                getImageNavigator().setViewDimensions(extent2.getMin().getX(), extent2.getMax().getY(), extent2.getMax().getX(), extent2.getMin().getY());

                getImageNavigator().setZoom(1.0/((FLyrRasterSE) fLayer).getDatasource().getXCellSize());

                getImageNavigator().imageCenter();

                getImageNavigator().updateBuffer();

                Rendering rendering = ((FLyrRasterSE) layer).getRender();

                RasterFilterList rfl = rendering.getFilterList();

                filterStatus = rfl.getStatusCloned();

                int i=0;

                boolean filters = false;

                while (rfl.get(i) != null) {

                        DefaultListModel list = (DefaultListModel) getTreeListContainer().getListModel();

                        list.addElement(PluginServices.getText(this, rfl.get(i).getName()));

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

                                if (((ParamStruct) getFilterListener().getParamsList().get(j)).getFilterName().equals(rfl.get(i).getName())) {

                                        filters = true;

                                        ((ParamStruct) getFilterListener().getParamsList().get(j)).setFilterParam(initFilterParam(rfl.get(i).getUIParams()));

                                }

                        }

                        i++;

                }

                // Si existen filtros ya en la capa, pondremos los RadioButton para que

                // los cambios se hagan sobre la visualizaci?n

                if (filters)

                        getRadioOnlyView().setSelected(true);

                // Selecciona el primer item del arbol

                TreeListContainer lc = getTreeListContainer();

                lc.getTree().expandRow(1);

                lc.getTree().setSelectionInterval(2, 2);

        }

        /**

         * Obtiene el nombre de la vista

         * @return

         */

        public String getViewName() {

                return viewName;

        }

        /**

         * Poner los estados de los RadioButton en caso de que cambien de valor

         * @param evt

         */

        private void jRadioButton2ItemStateChanged(java.awt.event.ItemEvent evt) {

                if (getRadioNewLayer().getSelectedObjects() != null) {

                        getRadioFileGenerate().setEnabled(true);

                        getRadioOpenMemory().setEnabled(true);

                } else {

                        getRadioFileGenerate().setEnabled(false);

                        getRadioOpenMemory().setEnabled(false);

                }

        }

        /**

         * Asigna el t?tulo al panel

         * @param title T?tulo del panel

         */

        public void setTitle(String title) {

                getPropertiesComponent().setBorder(BorderFactory.createTitledBorder(null, PluginServices.getText(this, "filtro_de") + " " + PluginServices.getText(this, title), javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

        }

        /**

         * Actualizamos la vista previa

         */

        public void refreshPreview() {

                getImageNavigator().updateBuffer();

        }

        /**

         * Volvemos todo a la normalidad cuando se cancela

         */

        public void cancel() {

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

        }

        /**

         * Volvemos todo a la normalidad cuando se cancela

         */

        public void restoreFilters() {

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

                rendering.getFilterList().setStatus(filterStatus);

        }

        /**

         * Asignar un nuevo componente de PropertiesComponent, eliminando el anterior

         * que hubiera.

         * @param component

         * @param name

         */

        public void setNewPropertiesComponent(PropertiesComponent component, String name) {

                getPropertiesComponent().setVisible(false);

                this.remove(propertiesComponent);

                propertiesComponent = null;

                propertiesComponent = component;

                this.add(propertiesComponent, BorderLayout.CENTER);

                propertiesComponent.addStateChangedListener(getFilterListener());

                setTitle(name);

                this.validate();

        }

        /**

         * Cuando se aceptan los cambios en el panel ejecutaremos el aceptar del

         * listener

         */

        public void accept() {

                filterListener.accept();

        }

}