| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.symbology.gui.layerproperties;

import java.awt.BorderLayout;

import java.awt.FlowLayout;

import java.awt.IllegalComponentStateException;

import java.awt.Rectangle;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.beans.PropertyChangeEvent;

import java.util.Random;

import javax.swing.JPanel;

import javax.swing.JSplitPane;

import org.gvsig.gui.beans.swing.JBlank;

import org.gvsig.gui.beans.swing.JButton;

import org.gvsig.symbology.fmap.labeling.GeneralLabelingStrategy;

import org.gvsig.symbology.fmap.labeling.OnSelectionLabeled;

import org.gvsig.symbology.gui.styling.LayerPreview;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator;

import com.iver.cit.gvsig.fmap.drivers.VectorialDriver;

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

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

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

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

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

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

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

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

import com.iver.cit.gvsig.fmap.rendering.IVectorLegend;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.DefaultLabelingMethod;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.ILabelingMethod;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.ILabelingStrategy;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.IPlacementConstraints;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.IZoomConstraints;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelingFactory;

public class DefaultLabeling extends AbstractLabelingMethodPanel implements ActionListener {

        private static final long serialVersionUID = 7100208944546698724L;

        private LabelClass defaultLabel;

        private IPlacementConstraints placementConstraints;

        private LayerPreview layerPrev;

        private LabelClassPreview labelPrev;

        private JButton btnProperties;

        private String[] fieldNames;

        private int[] fieldTypes;

        private boolean allowOverlap;

        private IZoomConstraints zoomConstraints;

        @Override

        public Class<? extends ILabelingMethod> getLabelingMethodClass() {

                return DefaultLabelingMethod.class;

        }

        @Override

        public String getName() {

                return PluginServices.getText(this, "label_features_in_the_same_way")+".";

        }

        @Override

        public void fillPanel(ILabelingMethod method, SelectableDataSource dataSource) {

                try {

                        layerPrev.setLayer(layer);

                        fieldNames = dataSource.getFieldNames();

                        fieldTypes = new int[fieldNames.length];

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

                                fieldTypes[i] = dataSource.getFieldType(i);

                        }

                        ILabelingStrategy labeling = layer.getLabelingStrategy();

                        if (!(labeling instanceof GeneralLabelingStrategy)) {

                                labeling = new GeneralLabelingStrategy();

                                // (!!)

                                labeling.setLayer(layer);

                                layer.setLabelingStrategy(labeling);

                        }

                        else {

                                labeling = (GeneralLabelingStrategy) layer.getLabelingStrategy();

                        }

                } catch (Exception e) {

                        NotificationManager.addWarning(e.getMessage(), e);

                }

                LabelClass lc = null;

                if (method.getLabelClasses() != null && method.getLabelClasses().length > 0) {

                        lc = method.getLabelClasses()[0];

                } else {

                        lc = new LabelClass();

                }

                setLabel(lc);

        }

        @Override

        protected void initializePanel() {

                setLayout(new BorderLayout());

                JSplitPane scrl = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);

                scrl.add(layerPrev = new LayerPreview(), JSplitPane.LEFT);

                labelPrev = new LabelClassPreview();

                JPanel aux = new JPanel(new BorderLayout());

                aux.add(new JBlank(10, 10), BorderLayout.NORTH );

                aux.add(new JBlank(10, 10), BorderLayout.WEST );

                aux.add(labelPrev, BorderLayout.CENTER);

                aux.add(new JBlank(10, 10), BorderLayout.EAST );

                JPanel aux2 = new JPanel(new FlowLayout(FlowLayout.RIGHT, 10, 10));

                aux2.add(btnProperties = new JButton(PluginServices.getText(this, "properties")));

                btnProperties.addActionListener(this);

                aux.add(aux2, BorderLayout.SOUTH);

                scrl.add(aux, JSplitPane.RIGHT);

                add(scrl, BorderLayout.CENTER);

                scrl.setDividerLocation(500);

        }

        public void actionPerformed(ActionEvent e) {

                if (e.getSource().equals(btnProperties)) {

                        LabelClassProperties lcProp = new LabelClassProperties(fieldNames, fieldTypes);

                        lcProp.setLabelClass(method.getLabelClasses()[0]);

                        PluginServices.getMDIManager().addWindow(lcProp);

                        setLabel(lcProp.getLabelClass());

                }

        }

        private void setLabel(LabelClass labelClass) {

                defaultLabel = LabelingFactory.createLabelClassFromXML(labelClass.getXMLEntity());

                labelPrev.setLabelClass(defaultLabel);

                method = newMethodForThePreview(defaultLabel);

                updatePreview();

        }

        protected ILabelingMethod newMethodForThePreview(LabelClass defaultLabel) {

                return new DefaultLabelingMethod(defaultLabel);

        }

        private void updatePreview() {

                GeneralLabelingStrategy s = (GeneralLabelingStrategy) layer.

                getLabelingStrategy();

                s.setLabelingMethod(newMethodForThePreview(defaultLabel));

//                s.setPlacementConstraints(placementConstraints);

//                s.setAllowOverlapping(allowOverlap);

//                s.setZoomConstraints(zoomConstraints);

                layer.setIsLabeled(true);

                /* If the selected labeling method is OnSelectionLabeled we have to select some rows

                 * in the previous sample image*/

                if(s.getLabelingMethod() instanceof OnSelectionLabeled) {

                        try {

                                IFeatureIterator it = layer.getSource().getFeatureIterator();

                                SelectionSupport selectionSupport = new SelectionSupport();

                                FBitSet bitSet = new FBitSet();

                                long rowCount = layer.getRecordset().getRowCount();

                                for (int i = 0; i <= rowCount/4; i++) {

                                        bitSet.set(i);

                                }

                                selectionSupport.setSelection(bitSet);

                                layer.getRecordset().setSelectionSupport(selectionSupport);

                        } catch (ReadDriverException e) {

                                NotificationManager.addError(PluginServices.getText(this, "accessing_file_structure"), e);

                        }

                }

                try {

                        Rectangle r = layerPrev.getBounds();

                        r.setLocation(layerPrev.getLocationOnScreen());

                        layerPrev.paintImmediately(r);

                        layerPrev.doLayout();

                } catch (IllegalComponentStateException ex) {

                        // this happens when the component is not showing in the

                        // screen. If that is the case, then we don't need to do

                        // anything.

                }

        }

        public void propertyChange(PropertyChangeEvent evt) {

                String prop = evt.getPropertyName();

                GeneralLabelingStrategy s = (GeneralLabelingStrategy) layer.

                getLabelingStrategy();

                if (AbstractLabelingMethodPanel.PLACEMENT_CONSTRAINTS.equals(prop)) {

                        placementConstraints = (IPlacementConstraints) evt.getNewValue();

                        s.setPlacementConstraints(placementConstraints);

                } else if (AbstractLabelingMethodPanel.ALLOW_OVERLAP.equals(prop)) {

                        allowOverlap = (Boolean) evt.getNewValue();

                        s.setAllowOverlapping(allowOverlap);

                } else if (AbstractLabelingMethodPanel.ZOOM_CONSTRAINTS.equals(prop)) {

                        zoomConstraints = (IZoomConstraints) evt.getNewValue();

                        s.setZoomConstraints(zoomConstraints);

                }

                updatePreview();

        }

}