Application: gvSIG desktop

package org.gvsig.app.extension;

import java.awt.Dimension;

import java.awt.Image;

import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;

import static javax.swing.Action.ACTION_COMMAND_KEY;

import static javax.swing.Action.NAME;

import static javax.swing.Action.SHORT_DESCRIPTION;

import static javax.swing.Action.SMALL_ICON;

import javax.swing.JOptionPane;

import org.cresques.cts.IProjection;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.plugins.Extension;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.ApplicationManager;

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

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

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

import org.gvsig.featureform.swing.CreateJFeatureFormException;

import org.gvsig.featureform.swing.JFeaturesForm;

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

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

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.primitive.Circle;

import org.gvsig.fmap.geom.primitive.Point;

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

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

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

import org.gvsig.fmap.mapcontrol.MapControl;

import org.gvsig.fmap.mapcontrol.tools.Behavior.PointBehavior;

import org.gvsig.fmap.mapcontrol.tools.BehaviorException;

import org.gvsig.fmap.mapcontrol.tools.Events.PointEvent;

import org.gvsig.fmap.mapcontrol.tools.Listeners.PointListener;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.evaluator.Evaluator;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.tools.service.ServiceException;

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

import org.gvsig.tools.swing.api.windowmanager.WindowManager;

import org.gvsig.tools.swing.icontheme.IconTheme;

@SuppressWarnings("UseSpecificCatch")

public class ShowLayerAsForm extends Extension {

    @Override

    public void initialize() {

        IconThemeHelper.registerIcon("action", "layer-show-form", this);

        IconThemeHelper.registerIcon("action", "layer-selectforediting", this);

    }

    @Override

    public void execute(String actionCommand) {

        ApplicationManager application = ApplicationLocator.getManager();

        if ("layer-show-form".equalsIgnoreCase(actionCommand)) {

            ViewDocument doc = (ViewDocument) application.getActiveDocument(ViewManager.TYPENAME);

            if (doc == null) {

                return;

            }

            FLayer[] layers = doc.getMapContext().getLayers().getActives();

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

                FLayer layer = layers[i];

                if (layer.isAvailable() && layer instanceof FLyrVect) {

                    try {

                        FLyrVect vectLayer = (FLyrVect) layer;

                        FeatureStore featureStore = vectLayer.getFeatureStore();

                        FeatureType type = featureStore.getDefaultFeatureType();

                        if( type.supportReferences() ) {

                            JFeaturesForm form = this.createform(featureStore);

                            form.addAction(new SelectFeatureInTheViewAction(doc, form, layer));

                            form.showForm(WindowManager.MODE.WINDOW);

                        }

                    } catch (Exception ex) {

                        String msg = "Can't show form for layer '" + layer.getName() + "'.";

                        logger.warn(msg, ex);

                        application.messageDialog(msg + "\n\n(See the error log for more information)", "Warning", JOptionPane.WARNING_MESSAGE);

                    }

                }

            }

        }

    }

    private static class SelectFeatureInTheViewAction extends AbstractAction implements PointListener {

        private final JFeaturesForm form;

        private final ViewDocument doc;

        private MapControl mapControl = null;

        private String previousTool = null;

        private final FLyrVect layer;

        public SelectFeatureInTheViewAction(ViewDocument doc, JFeaturesForm form, FLayer layer) {

            I18nManager i18nManager = ToolsLocator.getI18nManager();

            IconTheme iconTheme = ToolsSwingLocator.getIconThemeManager().getDefault();

            this.doc = doc;

            this.form = form;

            this.putValue(NAME, null);

            this.putValue(SHORT_DESCRIPTION, i18nManager.getTranslation("_Select_feature_in_the_View"));

            this.putValue(SMALL_ICON, iconTheme.get("layer-selectforediting"));

            this.putValue(ACTION_COMMAND_KEY, "selectInTheView");

            if( layer instanceof FLyrVect ) {

                this.layer = (FLyrVect) layer;

                this.setEnabled(true);

            } else {

                this.layer = null;

                this.setEnabled(false);

            }

        }

        @Override

        public void actionPerformed(ActionEvent ae) {

            ApplicationManager application = ApplicationLocator.getManager();

            if( this.layer == null ) {

                return;

            }

            if (this.mapControl == null) {

                IView view = (IView) application.getActiveComponent(ViewDocument.class);

                if (view != null) {

                    MapControl theMapControl = view.getMapControl();

                    this.previousTool = theMapControl.getCurrentTool();

                    theMapControl.addBehavior("layer-selectforediting", new PointBehavior(this));

                    theMapControl.setTool("layer-selectforediting");

                    this.mapControl = theMapControl;

                    theMapControl.requestFocus();

                }

            } else {

                this.mapControl.setTool(this.previousTool);

                this.mapControl = null;

                this.previousTool = null;

            }

        }

        @Override

        public void point(PointEvent event) throws BehaviorException {

            ApplicationManager application = ApplicationLocator.getManager();

            try {

                Point point = event.getMapPoint();

                double tolerance = mapControl.getViewPort().toMapDistance(7);

                GeometryManager manager = GeometryLocator.getGeometryManager();

                Circle circle = (Circle) manager.create(

                        Geometry.TYPES.CIRCLE,

                        Geometry.SUBTYPES.GEOM2D

                );

                circle.setPoints(point, tolerance);

                FeatureStore featureStore = this.form.getFeatureStore();

                FeatureType featureType = featureStore.getDefaultFeatureType();

                FeatureQuery featureQuery = featureStore.createFeatureQuery();

                featureQuery.setFeatureType(featureType);

                Geometry query_geo = this.layer.transformToSourceCRS(circle, true);

                IProjection query_proj = this.mapControl.getMapContext().getProjection();

                if (this.layer.getCoordTrans() != null) {

                    query_proj = this.layer.getCoordTrans().getPOrig();

                }

                Evaluator iee = SpatialEvaluatorsFactory.getInstance().intersects(

                                query_geo,

                                query_proj,

                                featureStore

                );

                featureQuery.setFilter(iee);

                featureQuery.setAttributeNames(null);

                this.form.setQuery(featureQuery);

                this.mapControl.setTool(this.previousTool);

                this.mapControl = null;

                this.previousTool = null;

            } catch (Exception e) {

                application.message("Can't filter form.", JOptionPane.WARNING_MESSAGE);

                throw new RuntimeException("Can't create filter", e);

            }

        }

        @Override

        public void pointDoubleClick(PointEvent event) throws BehaviorException {

            this.point(event);

        }

        @Override

        public Image getImageCursor() {

            return IconThemeHelper.getImage("cursor-info-by-point");

        }

        @Override

        public boolean cancelDrawing() {

            return false;

        }

    }

    private JFeaturesForm createform(FeatureStore featureStore) throws CreateJFeatureFormException, ServiceException, DataException {

        final DataSwingManager swingManager = DALSwingLocator.getSwingManager();

        final JFeaturesForm form = swingManager.createJFeaturesForm(featureStore);

        form.setPreferredSize(new Dimension(400, 300));

        return form;

    }

    @Override

    public boolean isEnabled() {

        return true;

    }

    @Override

    public boolean isVisible() {

        ApplicationManager application = ApplicationLocator.getManager();

        ViewDocument doc = (ViewDocument) application.getActiveDocument(ViewManager.TYPENAME);

        if (doc == null) {

            return false;

        }

        return doc.getMapContext().hasActiveVectorLayers();

    }

}