Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

/*

 * AUTHORS (In addition to CIT):

 * 2008 IVER T.I. S.A.   {{Task}}

 */

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

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Component;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.Window;

import java.awt.event.ActionEvent;

import javax.swing.JFrame;

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.addlayer.AddLayerDialog;

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.fmap.mapcontrol.swing.dynobject.DynObjectEditor;

import org.gvsig.tools.dynobject.DynField;

import org.gvsig.tools.dynobject.DynObject;

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

import org.gvsig.tools.library.impl.DefaultLibrariesInitializer;

import org.gvsig.tools.service.ServiceException;

/**

 * @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;

    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 = null;

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

            // Buscamos por el parametro de la proyeccion

            // que sean obligatorios y est?n 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);

        }

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        String command = e.getActionCommand();

        FilesystemStoreListModel model =

            (FilesystemStoreListModel) getFileList().getModel();

        if (command == EDIT_COMMAND) {

            DynObject dynObject =

                model.getDynObjectAt(getFileList().getSelectedIndex());

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

            // CRS as default value when null.

            try {

                IProjection projection =

                    (IProjection) dynObject.getDynValue("CRS");

                if (projection == null) {

                    projection = getDefaultProjection();

                    dynObject.setDynValue("CRS", projection);

                }

            } catch (DynFieldNotFoundException e1) {

                LOG.debug("Loading a store whose parameters "

                    + "don't have a CRS field");

            }

            try {

                DynObjectEditor editor = new DynObjectEditor(dynObject);

                editor.editObject(true);

            } catch (ServiceException ex) {

                LOG.error(

                    "Error creating a Swing component for the DynObject: "

                        + dynObject, ex);

            }

            // force repaint

            ListModel lm = this.getFileList().getModel();

            if (lm instanceof FilesystemStoreListModel) {

                FilesystemStoreListModel mm = (FilesystemStoreListModel) lm;

                mm.forceUpdate(getFileList().getSelectedIndex());

            }

        } else {

            super.actionPerformed(e);

        }

    }

    /**

     * @return

     */

    private IProjection getDefaultProjection() {

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

    }

    public static void main(String[] args) {

        try {

            new DefaultLibrariesInitializer().fullInitialize();

            JFrame frame = new JFrame();

            AddLayerDialog addLayerDlg = new AddLayerDialog();

            FilesystemExplorerAddLayerWizardPanel wizardPanel =

                new FilesystemExplorerAddLayerWizardPanel();

            addLayerDlg.addWizardTab("File", wizardPanel);

            wizardPanel.initWizard();

            frame.setLayout(new BorderLayout());

            frame.add(addLayerDlg);

            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            frame.setBounds(10, 10, 400, 400);

            frame.setVisible(true);

        } catch (Exception e) {

            e.printStackTrace();

            System.exit(-1);

            return;

        }

    }

    @Override

    protected PrepareContext getPrepareDataStoreContext() {

        if (this.prepareContext == null) {

            this.prepareContext = new PrepareContextView() {

                public Window getOwnerWindow() {

                    return null;

                }

                public MapControl getMapControl() {

                    return FilesystemExplorerAddLayerWizardPanel.this

                        .getMapCtrl();

                }

                                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();

        }

        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();

            }

        }

    }

}