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.app.project.documents.view.legend.gui;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.Iterator;

import java.util.List;

import java.util.TreeMap;

import javax.swing.BorderFactory;

import javax.swing.JCheckBox;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JPanel;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelable;

import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingStrategy;

import org.gvsig.symbology.swing.SymbologySwingLocator;

import org.gvsig.symbology.swing.SymbologySwingManager;

import org.gvsig.utils.swing.JComboBox;

/**

 *

 * @author jaume dominguez faus - jaume.dominguez@iver.es

 *

 */

public class LabelingManager

    extends AbstractThemeManagerPage

    implements ActionListener {

    private static final long serialVersionUID = 856162295985695717L;

//        private static ArrayList<Class<? extends ILabelingStrategyPanel>> installedPanels = new ArrayList<Class<? extends ILabelingStrategyPanel>>();

    private Comparator<Class<?>> comparator = new Comparator<Class<?>>() {

        public int compare(Class<?> o1, Class<?> o2) {

            return o1.getSimpleName().compareTo(o2.getSimpleName());

        }

    };

    private TreeMap<Class<?>, ILabelingStrategyPanel> strategyPanels

        = new TreeMap<Class<?>, ILabelingStrategyPanel>(comparator);

    private JCheckBox chkApplyLabels;

    private ILabelable layer;

    private JPanel content;

    private JPanel pnlNorth;

    private JComboBox cmbStrategy;

    public LabelingManager() {

        super();

        initialize();

    }

    private class LabelingStrategyItem {

        private ILabelingStrategyPanel strategyPanel;

        private LabelingStrategyItem(ILabelingStrategyPanel strategyPanel) {

            this.strategyPanel = strategyPanel;

        }

        public String toString() {

            return strategyPanel.getLabelingStrategyName();

        }

        public boolean equals(Object obj) {

            if( obj instanceof LabelingStrategyItem ) {

                LabelingStrategyItem item = (LabelingStrategyItem) obj;

                return this.strategyPanel.getClass().equals(item.strategyPanel.getClass());

            }

            return super.equals(obj);

        }

    }

    @Override

    public int getPriority() {

        return 600;

    }

    private void initialize() {

        setLayout(new BorderLayout());

        SymbologySwingManager symbologySwingManager = SymbologySwingLocator.getSwingManager();

        Iterator<ILabelingStrategyPanel> it = symbologySwingManager.getLabelingEditors().iterator();

        while( it.hasNext() ) {

            ILabelingStrategyPanel pnl = it.next();

            strategyPanels.put(pnl.getLabelingStrategyClass(), pnl);

        }

        content = new JPanel(new BorderLayout());

        content.setBorder(BorderFactory.createEtchedBorder());

        add(getPnlNorth(), BorderLayout.NORTH);

        add(content, BorderLayout.SOUTH);

    }

    private JPanel getPnlNorth() {

        if( pnlNorth == null ) {

            pnlNorth = new JPanel(new BorderLayout(5, 5));

            JPanel aux = new JPanel(new FlowLayout(FlowLayout.LEFT));

            aux.add(getChkApplyLabels());

            pnlNorth.add(aux, BorderLayout.NORTH);

            aux = new JPanel(new FlowLayout(FlowLayout.LEFT));

            aux.add(new JLabel(PluginServices.getText(this, "general") + ":"));

            aux.add(getCmbStrategy());

            pnlNorth.add(aux, BorderLayout.CENTER);

        }

        return pnlNorth;

    }

    private JComboBox getCmbStrategy() {

        if( cmbStrategy == null ) {

            Iterator<ILabelingStrategyPanel> it = strategyPanels.values().iterator();

            final ArrayList<LabelingStrategyItem> aux = new ArrayList<LabelingStrategyItem>();

            while( it.hasNext() ) {

                aux.add(new LabelingStrategyItem(it.next()));

            }

            final LabelingStrategyItem items[] = aux.toArray(new LabelingStrategyItem[aux.size()]);

            cmbStrategy = new JComboBox(items) {

                private static final long serialVersionUID = 7506754097091500846L;

                @Override

                public void setSelectedItem(Object anObject) {

                    if( anObject == null ) {

                        return;

                    }

                    if( anObject instanceof ILabelingStrategy ) {

                        ILabelingStrategy st = (ILabelingStrategy) anObject;

                        for( ILabelingStrategyPanel pnl : strategyPanels.values() ) {

                            if( pnl.getLabelingStrategyClass() != null

                                && pnl.getLabelingStrategyClass().equals(st.getClass()) ) {

                                super.setSelectedItem(new LabelingStrategyItem(pnl));

                                return;

                            }

                        }

                    } else {

                        super.setSelectedItem(anObject);

                    }

                }

            };

            cmbStrategy.setName("CMBMODE");

            cmbStrategy.addActionListener(this);

        }

        return cmbStrategy;

    }

    private JCheckBox getChkApplyLabels() {

        if( chkApplyLabels == null ) {

            chkApplyLabels = new JCheckBox(PluginServices.getText(this, "enable_labeling"));

            chkApplyLabels.setName("CHKAPPLYLABELS");

            chkApplyLabels.addActionListener(this);

        }

        return chkApplyLabels;

    }

    /**

     *

     * @deprecated use {#SymbolSwingManger.

     */

    public static void addLabelingStrategy(Class<? extends ILabelingStrategyPanel> iLabelingStrategyPanelClass) {

        SymbologySwingManager symbologySwingManager = SymbologySwingLocator.getSwingManager();

        symbologySwingManager.registerLabelingEditor(iLabelingStrategyPanelClass);

    }

    private void setComponentEnabled(Component c, boolean b) {

        c.setEnabled(b);

    }

    public void setModel(FLayer layer) throws IllegalArgumentException {

        if( !layer.isAvailable() ) {

            setComponentEnabled(this, false);

            getChkApplyLabels().setSelected(false);

            getChkApplyLabels().setEnabled(false);

            getCmbStrategy().setEnabled(false);

            return;

        }

        if( layer instanceof ILabelable ) {

            // get the labeling strategy

            this.layer = (ILabelable) layer;

            getChkApplyLabels().setEnabled(true);

            getCmbStrategy().setEnabled(true);

            for( ILabelingStrategyPanel p : strategyPanels.values() ) {

                p.setModel(layer, ((ILabelable) layer).getLabelingStrategy());

            }

            setComponentEnabled(this, true);

            refreshControls();

            ActionEvent evt = new ActionEvent(chkApplyLabels, 0, null);

            evt.setSource(chkApplyLabels);

            actionPerformed(evt);

            getCmbStrategy().setSelectedItem(this.layer.getLabelingStrategy());

            evt.setSource(getCmbStrategy());

            actionPerformed(evt);

        } else {

            setComponentEnabled(this, false);

        }

    }

    private void refreshControls() {

        if( layer == null ) {

            return;

        }

        // enables labeling

        JCheckBox applyLabels = getChkApplyLabels();

        applyLabels.setSelected(layer.isLabeled());

    }

    public void actionPerformed(ActionEvent e) {

        JComponent c = (JComponent) e.getSource();

        if( c.equals(chkApplyLabels) ) {

            boolean b = chkApplyLabels.isSelected();

            // enables/disables all components

            getCmbStrategy().setEnabled(b);

            for( int i = 0; i < content.getComponentCount(); i++ ) {

                Component c1 = content.getComponent(i);

                if( !c1.equals(c) ) {

                    setComponentEnabled(c1, b);

                }

            }

        } else if( c.equals(cmbStrategy) ) {

            if( c.equals(cmbStrategy) ) {

                ILabelingStrategyPanel panel = ((LabelingStrategyItem) cmbStrategy.getSelectedItem()).strategyPanel;

                if( panel != null ) {

                    try {

                        remove(content);

                        content.removeAll();

                        content.add((Component) panel);

                        add(content, BorderLayout.CENTER);

                        actionPerformed(new ActionEvent(chkApplyLabels, 0, null));

                        revalidate();

                        paintImmediately(getBounds());

                    } catch (Exception e1) {

                        e1.printStackTrace();

                    }

                }

            }

        }

    }

    public void acceptAction() {

        applyAction();

    }

    public void cancelAction() {

    }

    public void applyAction() {

        if( layer != null ) { // in other case the layer is not labelable

            ILabelingStrategyPanel panel = ((LabelingStrategyItem) getCmbStrategy().getSelectedItem()).strategyPanel;

            ILabelingStrategy strategy = panel.getLabelingStrategy();

            layer.setLabelingStrategy(strategy);

            layer.setIsLabeled(getChkApplyLabels().isSelected());

        }

    }

    public String getName() {

        return PluginServices.getText(this, "Etiquetados");

    }

}