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.swing.impl.featuretable;

import java.awt.Color;

import java.awt.Component;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.sql.Timestamp;

import java.util.Date;

import java.util.HashSet;

import java.util.Set;

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.gvsig.fmap.dal.feature.Feature;

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

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

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

import org.gvsig.fmap.dal.swing.FeatureTableModel;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.DefaultFeatureTableModel;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.editors.FormattedCellEditor;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.editors.GeometryWKTCellEditor;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.renders.FeatureCellRenderer;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.renders.FormattedCellRenderer;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.renders.GeometryWKTCellRenderer;

import org.gvsig.fmap.dal.swing.impl.featuretable.table.renders.JToggleButtonHeaderCellRenderer;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.observer.Observable;

import org.gvsig.tools.observer.Observer;

public class FeatureTable extends JTable implements Observer, Observable {

    private static final long serialVersionUID = -6139395189283163964L;

    private final FeatureTableModel featureTableModel;

    private JToggleButtonHeaderCellRenderer headerCellRenderer;

    private final Set<ActionListener> columnSelectionListeners;

    private static final int COLUMN_HEADER_MARGIN = 8;

    private static final int COLUMN_HEADER_MIN_WIDTH = 50;

    public FeatureTable(FeatureTableModel featureTableModel) {

        super(featureTableModel);

        this.featureTableModel = featureTableModel;

        this.columnSelectionListeners = new HashSet<>();

        init();

    }

    public void addColumnSelectionListener(ActionListener listener) {

       this.columnSelectionListeners.add(listener);

    }

    public void fireColumnSelection(ActionEvent e) {

        for( ActionListener listener : this.columnSelectionListeners ) {

            try {

                listener.actionPerformed(e);

            } catch(Exception ex) {

            }

        }

    }

    @Override

    public void update(Observable observable, Object notification) {

        if( observable instanceof FeatureSelection ) {

            // Ha cambiado la seleccion, simplemente repintamos.

            repaint();

            return;

        }

        if( observable instanceof FeatureStore ) {

            FeatureStoreNotification fsNotification = (FeatureStoreNotification) notification;

            String type = fsNotification.getType();

            /*

             * 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);

                }

            }

        }

    }

    @Override

    public void addObserver(Observer observer) {

        headerCellRenderer.addObserver(observer);

    }

    @Override

    public void deleteObserver(Observer observer) {

        headerCellRenderer.deleteObserver(observer);

    }

    @Override

    public void deleteObservers() {

        headerCellRenderer.deleteObservers();

    }

//    public void setSelectionUp(boolean selectionUp) {

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

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

//    }

    @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 DefaultFeatureTableModel) {

            DefaultFeatureTableModel model = (DefaultFeatureTableModel) 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));

            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() {

        setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

        featureTableModel.getFeatureStore().addObserver(this);

        this.featureTableModel.getFeatureSelection().addObserver(this);

        this.featureTableModel.addChangeListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                if( FeatureTableModel.CHANGE_SELECTION.equals(e.getActionCommand()) ) {

                    featureSelectionChanged();

                }

            }

        });

        // 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);

        }

        this.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN);

    }

    private void featureSelectionChanged() {

        this.featureTableModel.getFeatureSelection().addObserver(this);

    }

    @Override

    public void setModel(TableModel dataModel) {

        super.setModel(dataModel);

    }

    @Override

    public int getSelectedColumnCount() {

        return headerCellRenderer.getSelectedColumns().length;

    }

    @Override

    public int[] getSelectedColumns() {

        return headerCellRenderer.getSelectedColumns();

    }

    @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() {

        return this.featureTableModel.getSelectionCount();

    }

}