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.mapcontrol.dal.feature.swing;

import java.awt.Color;

import java.awt.Component;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.sql.Timestamp;

import java.util.Date;

import java.util.Objects;

import javax.swing.JTable;

import javax.swing.event.ChangeEvent;

import javax.swing.event.TableModelEvent;

import javax.swing.table.TableCellRenderer;

import javax.swing.table.TableColumn;

import javax.swing.table.TableColumnModel;

import javax.swing.table.TableModel;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor;

import org.gvsig.fmap.dal.feature.FeatureStoreNotification;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.ConfigurableFeatureTableModel;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FeatureAttributeCellRenderer;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FeatureCellRenderer;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FeatureTableModel;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FormattedCellEditor;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FormattedCellRenderer;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.GeometryWKTCellEditor;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.GeometryWKTCellRenderer;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.JToggleButtonHeaderCellRenderer;

import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.notification.ColumnHeaderSelectionChangeNotification;

import org.gvsig.tools.observer.Observable;

import org.gvsig.tools.observer.Observer;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Table extension to show Feature values.

 *

 * It's based on the usage of a FeatureTableModel, and adds renderers for

 * Geometry and Feature cell values.

 *

 * Observers are notified about column header selection changes, with a

 * {@link ColumnHeaderSelectionChangeNotification}.

 *

 * @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>

 */

@SuppressWarnings("UseSpecificCatch")

public class FeatureTable extends JTable implements Observer, Observable {

    private static final Logger LOGGER = LoggerFactory.getLogger(FeatureTable.class);

    /**

     * Generated Serial UID

     */

    private static final long serialVersionUID = -6139395189283163964L;

    private final FeatureTableModel featureTableModel;

    private JToggleButtonHeaderCellRenderer headerCellRenderer;

        private static final int COLUMN_HEADER_MARGIN = 8;

        private static final int COLUMN_HEADER_MIN_WIDTH = 50;

    /**

     * Creates a new FeatureTable with a {@link FeatureTableModel}.

     *

     * @param featureTableModel

     *            the table model to get data to be shown on the table

     * @throws DataException

     *             if there is an error while loading the Features to show

     * @see JTable#JTable(TableModel)

     */

    public FeatureTable(FeatureTableModel featureTableModel)

            throws DataException {

        super(featureTableModel);

        this.featureTableModel = featureTableModel;

        init();

    }

    /**

     * Creates a new FeatureTable with a {@link FeatureTableModel}.

     *

     * @param featureTableModel

     *            the table model to get data to be shown on the table

     * @param cm

     *            the table column model to use

     * @throws DataException

     *             if there is an error while loading the Features to show

     * @see JTable#JTable(TableModel, TableColumnModel)

     */

    public FeatureTable(FeatureTableModel featureTableModel, TableColumnModel cm)

            throws DataException {

        super(featureTableModel, cm);

        this.featureTableModel = featureTableModel;

        init();

    }

    @Override

    public void update(Observable observable, Object notification) {

        if (notification instanceof FeatureStoreNotification) {

            FeatureStoreNotification fsNotification = (FeatureStoreNotification) notification;

            String type = fsNotification.getType();

            // If the selection has changed, repaint the table to show the new

            // selected rows

            if (FeatureStoreNotification.SELECTION_CHANGE.equals(type)) {

                repaint();

            }

            /*

             * This is necessary to let Swing know

             * that editing (in terms of Swing, not gvsig editing)

             * must be cancelled because the deleted row

             * is perhaps the row that was being edited

             */

            if (FeatureStoreNotification.BEFORE_DELETE.equals(type)) {

                if (this.isEditing()) {

                    ChangeEvent che = new ChangeEvent(this);

                    this.editingCanceled(che);

                }

            }

        }

    }

    /**

     * Returns the FeatureAttributeDescriptor related to the selected columns.

     *

     * @return an array of FeatureAttributeDescriptor

     *

     * @see org.gvsig.fmap.mapcontrol.dal.feature.swing.table.JToggleButtonHeaderCellRenderer#getSelectedColumns()

     */

    public FeatureAttributeDescriptor[] getSelectedColumnsAttributeDescriptor() {

        int[] columns = headerCellRenderer.getSelectedColumns();

        FeatureAttributeDescriptor[] descriptors = new FeatureAttributeDescriptor[columns.length];

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

            descriptors[i] = featureTableModel

                    .getDescriptorForColumn(columns[i]);

        }

        return descriptors;

    }

    @Override

    public void addObserver(Observer observer) {

        headerCellRenderer.addObserver(observer);

    }

    @Override

    public void deleteObserver(Observer observer) {

        headerCellRenderer.deleteObserver(observer);

    }

    @Override

    public void deleteObservers() {

        headerCellRenderer.deleteObservers();

    }

        /**

         * Sets that the selected Features to be viewed first.

     * @param selectionUp

         */

        public void setSelectionUp(boolean selectionUp) {

                ((FeatureTableModel) getModel()).setSelectionUp(selectionUp);

                scrollRectToVisible(getCellRect(0, 0, true));

        }

    // @Override

    // public void tableChanged(TableModelEvent e) {

    // super.tableChanged(e);

    // if (headerCellRenderer != null) {

    // headerCellRenderer.deselectAll();

    // }

    // }

    @Override

    protected void initializeLocalVars() {

        super.initializeLocalVars();

        // Add a cell renderer for Geometries and Features

        setDefaultRenderer(Geometry.class, new GeometryWKTCellRenderer());

        setDefaultEditor(Geometry.class, new GeometryWKTCellEditor());

        setDefaultRenderer(Feature.class, new FeatureCellRenderer());

        if( this.getModel() instanceof ConfigurableFeatureTableModel ) {

            ConfigurableFeatureTableModel model = (ConfigurableFeatureTableModel)this.getModel();

            setDefaultRenderer(Double.class, new FormattedCellRenderer(model));

            setDefaultRenderer(Float.class, new FormattedCellRenderer(model));

            setDefaultRenderer(Integer.class, new FormattedCellRenderer(model));

            setDefaultRenderer(Long.class, new FormattedCellRenderer(model));

            setDefaultRenderer(Date.class, new FormattedCellRenderer(model));

            setDefaultRenderer(String.class, new FeatureAttributeCellRenderer(model));

            setDefaultEditor(Double.class, new FormattedCellEditor(model));

            setDefaultEditor(Float.class, new FormattedCellEditor(model));

            setDefaultEditor(Integer.class, new FormattedCellEditor(model));

            setDefaultEditor(Long.class, new FormattedCellEditor(model));

            setDefaultEditor(Date.class, new FormattedCellEditor(model));

        }

        // Set the selected row colors

        setSelectionForeground(Color.blue);

        setSelectionBackground(Color.yellow);

    }

    /**

     * Initializes the table GUI.

     */

    private void init() throws DataException {

      setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

      featureTableModel.getFeatureStore().addObserver(this);

      // Change the selection model to link with the FeatureStore selection

      // through the FeatureTableModel

      setRowSelectionAllowed(true);

      setColumnSelectionAllowed(false);

      setSelectionModel(new FeatureSelectionModel(featureTableModel));

      headerCellRenderer = new JToggleButtonHeaderCellRenderer(this);

      getTableHeader().setDefaultRenderer(headerCellRenderer);

      TableColumnModel tcmodel = getColumnModel();

      for (int i = 0; i < tcmodel.getColumnCount(); i++) {

        TableColumn col = tcmodel.getColumn(i);

        // Get width of column header

        TableCellRenderer renderer = col.getHeaderRenderer();

        if (renderer == null) {

          renderer = getTableHeader().getDefaultRenderer();

        }

        Component comp

                = renderer.getTableCellRendererComponent(this,

                        col.getHeaderValue(), false, false, 0, i);

        int width = comp.getPreferredSize().width;

        width

                = width < COLUMN_HEADER_MIN_WIDTH ? COLUMN_HEADER_MIN_WIDTH

                        : width;

        col.setPreferredWidth(width + 2 * COLUMN_HEADER_MARGIN);

      }

      try {

        if( !this.featureTableModel.getFeatureStore().getFeatureSelection().isAvailable() ) {

          this.setSelectionBackground(Color.PINK);

        }

      } catch(Exception ex) {

        LOGGER.warn("Can't check if selecction is available.", ex);

      }

        this.addKeyListener(new KeyAdapter() {

            @Override

            public void keyPressed(KeyEvent e) {

                if( e.getKeyCode()==KeyEvent.VK_F4 ) {

                    doShowCellInDialog();

                }

            }

        });

    }

    private void doShowCellInDialog() {

        int row = this.getSelectedRow();

        if( row < 0 ) {

            return;

        }

        int col = this.getSelectedColumn();

        if( col < 0 ) {

            return;

        }

        String s = Objects.toString(this.getValueAt(row, col),null);

        if( StringUtils.isBlank(s) ) {

            return;

        }

        ToolsSwingLocator.getToolsSwingManager().showZoomDialog(

            this, 

            this.getColumnName(col), 

            s,

            false

        );

    }

    /**

     * Returns the number of selected columns.

     *

     * @return the number of selected columns, 0 if no columns are selected

     */

    @Override

    public int getSelectedColumnCount() {

        return headerCellRenderer.getSelectedColumns().length;

    }

    @Override

    public void tableChanged(TableModelEvent e) {

        // Clear the header selection

        if (e != null && e.getFirstRow() == TableModelEvent.HEADER_ROW

            && headerCellRenderer != null) {

            headerCellRenderer.deselectAll();

        }

        super.tableChanged(e);

    }

    @Override

    public Class<?> getColumnClass(int column) {

        Class resp = super.getColumnClass(column);

        if (Timestamp.class.isAssignableFrom(resp)) {

            return Object.class;

        } else {

            return resp;

        }

    }

    @Override

    public int getSelectedRowCount() {

        try {

            return (int) this.featureTableModel.getFeatureStore().getFeatureSelection().getSelectedCount();

        } catch (DataException ex) {

            LOGGER.error("Can't calculate selected rows in table.", ex);

            return 0;

        }

    }

}