| gvSIG desktop 1

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * 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., 51 Franklin Street, Fifth Floor, Boston, 

 * MA  02110-1301, USA.

 * 

 */

package org.gvsig.editing.gui.cad.tools;

import java.awt.Image;

import java.awt.event.InputEvent;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.geom.Point2D.Double;

import java.util.ArrayList;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.editing.CADExtension;

import org.gvsig.editing.gui.cad.CADTool;

import org.gvsig.editing.gui.cad.DefaultCADTool;

import org.gvsig.editing.gui.cad.exception.CommandException;

import org.gvsig.editing.gui.cad.tools.smc.ScaleCADToolContext;

import org.gvsig.editing.gui.cad.tools.smc.ScaleCADToolContext.ScaleCADToolState;

import org.gvsig.editing.layers.VectorialLayerEdited;

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

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

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

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.type.GeometryType;

import org.gvsig.fmap.geom.util.UtilFunctions;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.fmap.mapcontrol.MapControlDrawer;

import org.gvsig.tools.dispose.DisposableIterator;

/**

 * DOCUMENT ME!

 * 

 * @author Vicente Caballero Navarro

 */

public class ScaleCADTool extends DefaultCADTool {

    private ScaleCADToolContext _fsm;

    private Point2D firstPoint;

    private Point2D lastPoint;

    private Point2D scalePoint;

    private Double orr;

    private Double frr;

    private Double ore;

    private Double fre;

    /**

     * M?todo de incio, para poner el c?digo de todo lo que se requiera de una

     * carga previa a la utilizaci?n de la herramienta.

     */

    public void init() {

        _fsm = new ScaleCADToolContext(this);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap

     * .layers.FBitSet,

     * double, double)

     */

    public void transition(double x, double y, InputEvent event) {

        _fsm.addPoint(x, y, event);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap

     * .layers.FBitSet,

     * double)

     */

    public void transition(double d) {

        _fsm.addValue(d);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap

     * .layers.FBitSet,

     * java.lang.String)

     */

    public void transition(String s) throws CommandException {

        if (!super.changeCommand(s)) {

            _fsm.addOption(s);

        }

    }

    /**

     * DOCUMENT ME!

     */

    public void selection() {

        FeatureSet selection = null;

        try {

            selection = (FeatureSet) getVLE().getFeatureStore().getSelection();

            if (selection.getSize() == 0

                && !CADExtension

                    .getCADTool()

                    .getClass()

                    .getName()

                    .equals("com.iver.cit.gvsig.gui.cad.tools.SelectionCADTool")) {

                CADExtension.setCADTool("_selection", false);

                ((SelectionCADTool) CADExtension.getCADTool())

                    .setNextTool("_scale");

            }

        } catch (ReadException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (DataException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    /**

     * Equivale al transition del prototipo pero sin pasarle como par?metro el

     * editableFeatureSource que ya estar? creado.

     * 

     * @param x

     *            par?metro x del punto que se pase en esta transici?n.

     * @param y

     *            par?metro y del punto que se pase en esta transici?n.

     */

    public void addPoint(double x, double y, InputEvent event) {

        ScaleCADToolState actualState =

            (ScaleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status.equals("Scale.PointMain")) {

            firstPoint = new Point2D.Double(x, y);

            scalePoint = firstPoint;

        } else

            if (status.equals("Scale.ScaleFactorOrReference")) {

                PluginServices.getMDIManager().setWaitCursor();

                lastPoint = new Point2D.Double(x, y);

                // double w;

                // double h;

                // w = lastPoint.getX() - firstPoint.getX();

                // h = lastPoint.getY() - firstPoint.getY();

                try {

                    double size =

                        getCadToolAdapter()

                            .getMapControl()

                            .getViewPort()

                            .toMapDistance(

                                getCadToolAdapter().getMapControl().getWidth());

                    scale(firstPoint.distance(lastPoint) / (size / 40));

                } catch (ReadException e) {

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

                }

                PluginServices.getMDIManager().restoreCursor();

            } else

                if (status.equals("Scale.PointOriginOrScaleFactor")) {

                    orr = new Point2D.Double(x, y);

                } else

                    if (status.equals("Scale.EndPointReference")) {

                        frr = new Point2D.Double(x, y);

                    } else

                        if (status.equals("Scale.OriginPointScale")) {

                            ore = new Point2D.Double(x, y);

                            firstPoint = ore;

                        } else

                            if (status.equals("Scale.EndPointScale")) {

                                fre = new Point2D.Double(x, y);

                                double distrr = orr.distance(frr);

                                double distre = ore.distance(fre);

                                double escalado = distre / distrr;

                                try {

                                    scale(escalado);

                                } catch (ReadException e) {

                                    NotificationManager.addError(

                                        e.getMessage(), e);

                                }

                            }

    }

    /**

     * M?todo para dibujar la lo necesario para el estado en el que nos

     * encontremos.

     * 

     * @param g

     *            Graphics sobre el que dibujar.

     * @param x

     *            par?metro x del punto que se pase para dibujar.

     * @param y

     *            par?metro x del punto que se pase para dibujar.

     */

    public void drawOperation(MapControlDrawer renderer, double x, double y) {

        ScaleCADToolState actualState = _fsm.getState();

        String status = actualState.getName();

        FeatureSet selection = null;

        DisposableIterator iterator = null;

        try {

            selection = (FeatureSet) getVLE().getFeatureStore().getSelection();

            // ArrayList selectedRow = getSelectedRows();

            Point2D currentPoint = new Point2D.Double(x, y);

            long selectionCount = selection.getSize();

            if (status.equals("Scale.ScaleFactorOrReference")) {

                VectorialLayerEdited vle = getVLE();

                ViewPort vp = vle.getLayer().getMapContext().getViewPort();

                Point2D point =

                    vp.fromMapPoint(firstPoint.getX(), firstPoint.getY());

                double size =

                    getCadToolAdapter()

                        .getMapControl()

                        .getViewPort()

                        .toMapDistance(

                            getCadToolAdapter().getMapControl().getWidth());

                double scale = firstPoint.distance(currentPoint) / (size / 40);

                renderer.drawLine(firstPoint, currentPoint,

                    mapControlManager.getAxisReferenceSymbol());

                if (selectionCount < CADTool.TOPGEOMETRY) {

                    iterator = selection.iterator();

                    while (iterator.hasNext()) {

                        Feature feature = (Feature) iterator.next();

                        // }

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

                        // DefaultFeature fea = (DefaultFeature)

                        // ((DefaultRowEdited) selectedRow

                        // .get(i)).getLinkedRow();

                        Geometry geometry =

                            (feature.getDefaultGeometry()).cloneGeometry();

                        UtilFunctions.scaleGeom(geometry, firstPoint, scale,

                            scale);

                        renderer.draw(geometry,

                            mapControlManager.getAxisReferenceSymbol());

                    }

                } else {

                    AffineTransform at = new AffineTransform();

                    at.setToTranslation(point.getX(), point.getY());

                    at.scale(scale, scale);

                    at.translate(-point.getX(), -point.getY());

                    Image imgSel = vle.getSelectionImage();

                    renderer.drawImage(imgSel, at);

                }

                PluginServices.getMainFrame().getStatusBar()

                    .setMessage("5", "Factor = " + scale);

            } else

                if (status.equals("Scale.EndPointScale")) {

                    VectorialLayerEdited vle = getVLE();

                    ViewPort vp = vle.getLayer().getMapContext().getViewPort();

                    Point2D point =

                        vp.fromMapPoint(scalePoint.getX(), scalePoint.getY());

                    double distrr = orr.distance(frr);

                    double distre = ore.distance(currentPoint);

                    double escalado = distre / distrr;

                    if (selectionCount < CADTool.TOPGEOMETRY) {

                        iterator = selection.iterator();

                        while (iterator.hasNext()) {

                            Feature feature = (Feature) iterator.next();

                            // for (int i = 0; i < selectedRow.size(); i++) {

                            // DefaultFeature fea = (DefaultFeature)

                            // ((DefaultRowEdited) selectedRow

                            // .get(i)).getLinkedRow();

                            Geometry geometry =

                                (feature.getDefaultGeometry()).cloneGeometry();

                            UtilFunctions.scaleGeom(geometry, scalePoint,

                                escalado, escalado);

                            renderer.draw(geometry,

                                mapControlManager.getAxisReferenceSymbol());

                        }

                    } else {

                        AffineTransform at = new AffineTransform();

                        at.setToTranslation(point.getX(), point.getY());

                        at.scale(escalado, escalado);

                        at.translate(-point.getX(), -point.getY());

                        Image imgSel = vle.getSelectionImage();

                        renderer.drawImage(imgSel, at);

                    }

                    renderer.drawLine(firstPoint, new Point2D.Double(x, y),

                        mapControlManager.getAxisReferenceSymbol());

                }

        } catch (DataException e) {

            e.printStackTrace();

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

    }

    /**

     * Add a diferent option.

     * 

     * @param s

     *            Diferent option.

     */

    public void addOption(String s) {

        ScaleCADToolState actualState =

            (ScaleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status.equals("Scale.ScaleFactorOrReference")) {

            /*

             * try { scale(2); } catch (DriverIOException e) { // TODO

             * Auto-generated catch block e.printStackTrace(); } catch

             * (IOException e) { // TODO Auto-generated catch block

             * e.printStackTrace(); }

             */

        }

    }

    /*

     * (non-Javadoc)

     * 

     * @see com.iver.cit.gvsig.gui.cad.CADTool#addvalue(double)

     */

    public void addValue(double d) {

        ScaleCADToolState actualState =

            (ScaleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status.equals("Scale.ScaleFactorOrReference")) {

            try {

                scale(d);

            } catch (ReadException e) {

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

            }

        }

    }

    private void scale(double scaleFactor) throws ReadException {

        VectorialLayerEdited vle = getVLE();

        DisposableIterator iterator = null;

        try {

            FeatureStore featureStore = vle.getFeatureStore();

            featureStore.beginEditingGroup(getName());

            iterator =

                ((FeatureSelection) featureStore.getSelection()).iterator();

            ArrayList selectedRowAux = new ArrayList();

            while (iterator.hasNext()) {

                Feature feature = (Feature) iterator.next();

                // }

                // for (int i = 0; i < selectedRow.size(); i++) {

                // IRowEdited edRow = (IRowEdited) selectedRow.get(i);

                // DefaultFeature fea = (DefaultFeature)

                // edRow.getLinkedRow().cloneRow();

                Geometry geometry =

                    (feature.getDefaultGeometry()).cloneGeometry();

                UtilFunctions.scaleGeom(geometry, scalePoint, scaleFactor,

                    scaleFactor);

                EditableFeature eFeature = feature.getEditable();

                eFeature.setGeometry(featureStore.getDefaultFeatureType()

                    .getDefaultGeometryAttributeName(), geometry);

                featureStore.update(eFeature);

                // vea.modifyRow(edRow.getIndex(),

                // fea,getName(),EditionEvent.GRAPHIC);

                selectedRowAux.add(feature);

            }

            featureStore.endEditingGroup();

        } catch (DataException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

        // vle.setSelectionCache(VectorialLayerEdited.NOTSAVEPREVIOUS,

        // selectedRowAux);

        // clearSelection();

        // selectedRow.addAll(selectedRowAux);

    }

    public String getName() {

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

    }

    public String toString() {

        return "_scale";

    }

    @Override

    public boolean isApplicable(GeometryType geometryType) {

        return true;

    }

    @Override

    protected int[] getSupportedGeometryTypes() {

        return null;

    }

}