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.extension;

import java.util.prefs.Preferences;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.plugins.Extension;

import org.gvsig.andami.preferences.IPreference;

import org.gvsig.andami.preferences.IPreferenceExtension;

import org.gvsig.app.gui.preferencespage.GridPage;

import org.gvsig.app.gui.preferencespage.SnapConfigPage;

import org.gvsig.app.project.documents.view.ViewDocument;

import org.gvsig.app.project.documents.view.gui.DefaultViewPanel;

import org.gvsig.app.project.documents.view.gui.ViewSnappingPropertiesPageFactory;

import org.gvsig.app.project.documents.view.toolListeners.snapping.Snapping;

import org.gvsig.fmap.mapcontext.MapContext;

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

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

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

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

import org.gvsig.fmap.mapcontrol.MapControlLocator;

import org.gvsig.fmap.mapcontrol.MapControlManager;

import org.gvsig.fmap.mapcontrol.tools.snapping.snappers.ISnapper;

import org.gvsig.propertypage.PropertiesPageManager;

/**

 * Extension for config the snapping

 *

 * @author fdiaz

 *

 */

public class SnappingExtension extends Extension implements IPreferenceExtension {

    private IPreference[] preferencePages = null;

    public void initialize() {

        Snapping.register();

        registerIcons();

        MapControlManager mapControlManager = MapControlLocator.getMapControlManager();

        for (int n = 0; n < mapControlManager.getSnapperCount(); n++) {

            ISnapper snp = (ISnapper) mapControlManager.getSnapperAt(n);

            String nameClass = snp.getClass().getName();

            nameClass = nameClass.substring(nameClass.lastIndexOf('.') + 1);

            snp.setEnabled((Boolean) getPlugin().getPluginProperties().getDynValue("snapperActivated" + nameClass));

            snp.setPriority((Integer) getPlugin().getPluginProperties().getDynValue("snapperPriority" + nameClass));

        }

        Integer snapTolerance

                = (Integer) getPlugin().getPluginProperties().getDynValue("snapTolerance");

        mapControlManager.setTolerance(snapTolerance.intValue());

        Boolean applySnappers

                = (Boolean) getPlugin().getPluginProperties().getDynValue("applySnappers");

        Preferences prefs = Preferences.userRoot().node("snappers");

        prefs.putBoolean("apply-snappers", applySnappers);

        //TODO: si se a?ade al MapControlManager para habilitar/deshabilitar de manera global los snappers activos, invocarlo aqu?

//        mapControlManager.applySnappers(applySnappers);

        PropertiesPageManager manager = MapControlLocator.getPropertiesPageManager();

        manager.registerFactory(new ViewSnappingPropertiesPageFactory());

    }

    @Override

    public void postInitialize() {

    }

    private void registerIcons() {

        IconThemeHelper.registerIcon("preferences", "preferences-snapper", this);

        IconThemeHelper.registerIcon("preferences", "grid-preferences", this);

        IconThemeHelper.registerIcon("actions", "enable-snapping", this);

        IconThemeHelper.registerIcon("actions", "disable-snapping", this);

    }

    public void execute(String actionCommand) {

    }

    public boolean isEnabled() {

        return true;

    }

    public boolean isVisible() {

        org.gvsig.andami.ui.mdiManager.IWindow f

                = PluginServices.getMDIManager().getActiveWindow();

        if (f != null && f instanceof DefaultViewPanel) {

            DefaultViewPanel vista = (DefaultViewPanel) f;

            ViewDocument model = vista.getViewDocument();

            MapContext mapa = model.getMapContext();

            FLayers capas = mapa.getLayers();

            int numActiveVectorial = 0;

            int numActiveVectorialEditable = 0;

            LayersIterator iter = new LayersIterator(capas);

            FLayer capa;

            while (iter.hasNext()) {

                capa = iter.nextLayer();

                if (capa instanceof FLyrVect && capa.isActive()

                        && capa.isAvailable()) {

                    numActiveVectorial++;

                    if (capa.isEditing()) {

                        numActiveVectorialEditable++;

                    }

                }

            }

            if (numActiveVectorialEditable == 1 && numActiveVectorial == 1) {

                return true;

            }

        }

        return false;

    }

    @Override

    public IPreference[] getPreferencesPages() {

        if( this.preferencePages == null ) {

            this.preferencePages = new IPreference[] {

                new SnapConfigPage(),

                new GridPage()

            };

        }

        return this.preferencePages;

    }

}