Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3 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., 51

 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us at info AT

 * gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.dal.serverexplorer.filesystem.swing;

import java.awt.Color;

import java.awt.Component;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.Window;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.ListCellRenderer;

import javax.swing.ListModel;

import javax.swing.UIDefaults;

import org.cresques.cts.IProjection;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.andami.messages.Messages;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.prepareAction.PrepareContext;

import org.gvsig.app.prepareAction.PrepareContextView;

import org.gvsig.fmap.dal.DataStore;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.DataTypes;

import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemStoreParameters;

import org.gvsig.fmap.mapcontrol.MapControl;

import org.gvsig.tools.dynobject.DynField;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException;

/**

 * @author jmvivo

 *

 */

public class FilesystemExplorerAddLayerWizardPanel extends

        FilesystemExplorerWizardPanel {

    private static final long serialVersionUID = -5054057255129168139L;

    private static final Logger LOG = LoggerFactory

            .getLogger(FilesystemExplorerAddLayerWizardPanel.class);

    private PrepareContext prepareContext;

    @Override

    public void initWizard() {

        super.initWizard();

        this.getFileList().setCellRenderer(

                new TwoColumnFileListCellRenderer(this.getMapCtrl()));

    }

    @Override

    public void execute() {

        if (this.getMapCtrl() == null) {

            throw new IllegalArgumentException("MapControl need");

        }

        String layerName;

        for (DataStoreParameters params : this.getParameters()) {

            IProjection proj = this.getMapCtrl().getProjection();

            // Buscamos por el parametro de la proyeccion

            // que sean obligatorios y estén a null

            // y le ponemos la proyeccion de la vista

            DynField[] fields = params.getDynClass().getDynFields();

            for (DynField field : fields) {

                if (field.getType() == DataTypes.CRS && field.isMandatory()) {

                    if (params.getDynValue(field.getName()) == null) {

                        params.setDynValue(field.getName(), proj);

                    }

                }

            }

            layerName

                    = ((FilesystemStoreParameters) params).getFile().getName();

            this.doAddLayer(this.getMapCtrl(), layerName, params);

        }

    }

    protected void showPropertiesDialog(final DynObject parameters) {

        // For store parameters with a CRS field, add the current view

        // CRS as default value when null.

        try {

            IProjection projection = (IProjection) parameters.getDynValue("CRS");

            if (projection == null) {

                projection = getDefaultProjection();

                parameters.setDynValue("CRS", projection);

            }

        } catch (DynFieldNotFoundException e1) {

            LOG.info("Loading a store whose parameters don't have a CRS field");

        }

        FilesystemExplorerPropertiesPanelManager manager = ApplicationLocator.getFilesystemExplorerPropertiesPanelManager();

        FilesystemExplorerPropertiesPanel panel = manager.createPanel(parameters);   

        panel.setExcludeGeometryOptions(false);

        manager.showPropertiesDialog(parameters, panel);

        refreshFileList();

    }

    /**

     * @return

     */

    private IProjection getDefaultProjection() {

        return getMapCtrl().getViewPort().getProjection();

    }

    @Override

    protected PrepareContext getPrepareDataStoreContext() {

        if (this.prepareContext == null) {

            this.prepareContext = new PrepareContextView() {

                @Override

                public Window getOwnerWindow() {

                    return null;

                }

                @Override

                public MapControl getMapControl() {

                    return FilesystemExplorerAddLayerWizardPanel.this

                            .getMapCtrl();

                }

                @Override

                public IProjection getViewProjection() {

                    return getMapControl().getProjection();

                }

            };

        }

        return this.prepareContext;

    }

    // =================

    private class TwoColumnFileListCellRenderer extends JPanel implements ListCellRenderer {

        private JLabel fileName = null;

        private JLabel crsName = null;

        private Color selBC = null;

        private Color selFC = null;

        private Color unselBC = null;

        private Color unselFC = null;

        private MapControl mapCtrl = null;

        public TwoColumnFileListCellRenderer(MapControl mct) {

            // 1 col for name, one for crs

            setLayout(new GridLayout(0, 2));

            fileName = new JLabel();

            crsName = new JLabel();

            Font fnt = crsName.getFont();

            fnt = fnt.deriveFont((float) (fnt.getSize() - 1));

            crsName.setFont(fnt);

            add(fileName);

            add(crsName);

            mapCtrl = mct;

            UIDefaults defaults = javax.swing.UIManager.getDefaults();

            selBC = defaults.getColor("List.selectionBackground");

            selFC = defaults.getColor("List.selectionForeground");

            unselBC = this.getBackground();

            unselFC = this.getForeground();

        }

        @Override

        public Component getListCellRendererComponent(

                JList list, Object _value,

                int index, boolean isSelected, boolean cellHasFocus) {

            if (isSelected) {

                setBackground(selBC);

                fileName.setForeground(selFC);

                crsName.setForeground(selFC);

            } else {

                setBackground(unselBC);

                fileName.setForeground(unselFC);

                crsName.setForeground(unselFC);

            }

            // ===========================

            fileName.setText(_value == null

                    ? "?" : fixString(_value.toString()));

            ListModel lm = list.getModel();

            String unkown_tag = Messages.get("_Unknown_CRS_so_assumed");

            String view_crs = getViewCRS();

            if (lm instanceof FilesystemStoreListModel) {

                FilesystemStoreListModel fsslm = (FilesystemStoreListModel) lm;

                DynObject dyno = fsslm.getDynObjectAt(index);

                try {

                    Object crs_obj = dyno.getDynValue(DataStore.METADATA_CRS);

                    if (crs_obj == null || crs_obj.toString().compareToIgnoreCase("null") == 0) {

                        crsName.setText(unkown_tag + " " + view_crs);

                    } else {

                        if (crs_obj instanceof IProjection) {

                            IProjection ipr = (IProjection) crs_obj;

                            if (ipr.getAbrev().compareToIgnoreCase(view_crs) == 0) {

                                // CRS set but same as view's

                                crsName.setText(view_crs);

                            } else {

                                // CRS set and not same as view's

                                crsName.setText(ipr.getAbrev()

                                        + " ("

                                        + Messages.get("_reprojected_on_the_fly")

                                        + ")");

                            }

                        } else {

                            // CRS parameter class not expected

                            crsName.setText(unkown_tag + " " + view_crs);

                        }

                    }

                } catch (Exception ex) {

                    // CRS parameter not found

                    crsName.setText(unkown_tag + " " + view_crs);

                }

            } else {

                // list model not of expected class

                crsName.setText(unkown_tag + " " + view_crs);

            }

            return this;

        }

        /**

         * @param string

         * @return

         */

        private String fixString(String str) {

            int len = str.length();

            String resp = str;

            if (len < 32) {

                // return str;

            } else {

                int cut = len - 14;

                resp = resp.substring(0, 14)

                        + "..." + resp.substring(cut);

            }

            return resp + "    ";

        }

        private String getViewCRS() {

            if (this.mapCtrl == null) {

                return "CRS?";

            } else {

                return mapCtrl.getProjection().getAbrev();

            }

        }

    }

}