Application: gvSIG desktop » gvSIG data provider for DGN

/* 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.

 *

 */

/*

* AUTHORS (In addition to CIT):

* 2008 IVER T.I. S.A.   {{Task}}

*/

package org.gvsig.fmap.dal.store.dgn.legend;

import java.awt.Color;

import org.gvsig.fmap.dal.DataTypes;

import org.gvsig.fmap.dal.feature.spi.FeatureProvider;

import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider;

import org.gvsig.fmap.dal.store.dgn.DGNStoreProvider;

import org.gvsig.fmap.dal.store.dgn.LegendBuilder;

import org.gvsig.fmap.dal.store.dgn.lib.DGNReader;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.MapContextManager;

import org.gvsig.fmap.mapcontext.rendering.legend.IVectorialUniqueValueLegend;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.symbology.SymbologyLocator;

import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.IAttrInTableLabelingStrategy;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.fill.IFillSymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.line.ILineSymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.marker.IMarkerSymbol;

public class DGNLegendBuilder implements LegendBuilder {

        private MapContextManager mapContextManager = MapContextLocator

                        .getMapContextManager();

        private IVectorialUniqueValueLegend defaultLegend = null;

        private IAttrInTableLabelingStrategy labelingStragegy = null;

        public void begin() {

                // Nothing to do

        }

        public void end() {

                // Nothing to do

        }

        public Object getLegend() {

                return defaultLegend;

        }

        public LegendBuilder initialize(FeatureStoreProvider store) {

                defaultLegend = (IVectorialUniqueValueLegend) mapContextManager.createLegend(

                                                IVectorialUniqueValueLegend.LEGEND_NAME);

                defaultLegend.setShapeType(Geometry.TYPES.GEOMETRY);

                defaultLegend

                                .setClassifyingFieldNames(new String[] { DGNStoreProvider.NAME_FIELD_COLOR });

                defaultLegend.setClassifyingFieldTypes(new int[] { DataTypes.INT });

                ISymbol myDefaultSymbol =

                                mapContextManager.getSymbolManager()

                                .createSymbol(Geometry.TYPES.GEOMETRY);

                defaultLegend.setDefaultSymbol(myDefaultSymbol);

                labelingStragegy = SymbologyLocator.getSymbologyManager().createAttrInTableLabelingStrategy();

                labelingStragegy.setTextField(DGNStoreProvider.NAME_FIELD_TEXT);

                labelingStragegy

                                .setRotationField(DGNStoreProvider.NAME_FIELD_ROTATIONTEXT);

                labelingStragegy.setHeightField(DGNStoreProvider.NAME_FIELD_HEIGHTTEXT);

                labelingStragegy.setUnit(1); // MapContext.NAMES[1] (meters)

                return this;

        }

        public void process(FeatureProvider feature, DGNReader dgnReader) {

                Integer clave = (Integer) feature.get("Color");

                if (clave == null) {

                        return;

                }

                defaultLegend.useDefaultSymbol(false);

                if (defaultLegend.getSymbolByValue(clave) == null) {

                        ISymbol theSymbol;

                        Color color = dgnReader.DGNLookupColor(clave.intValue());

                        theSymbol =

                                        mapContextManager.getSymbolManager().createSymbol(

                                        Geometry.TYPES.GEOMETRY, color);

                        theSymbol.setDescription(clave.toString());

                        if (theSymbol instanceof IMarkerSymbol) {

                                ((IMarkerSymbol) theSymbol).setSize(1);

                        }

                        if (theSymbol instanceof ILineSymbol) {

                                ILineSymbol lineSymbol = (ILineSymbol) theSymbol;

                                lineSymbol.setLineWidth(1);

                                lineSymbol.setLineColor(color);

                        }

                        if (theSymbol instanceof IFillSymbol) {

                                IFillSymbol fillSymbol = (IFillSymbol) theSymbol;

                                fillSymbol.getOutline().setLineColor(color);

                                fillSymbol.getOutline().setLineWidth(1);

                                fillSymbol.setFillColor(null);

                        }

                        if (theSymbol != null) {

                                defaultLegend.addSymbol(clave, theSymbol);

                        }

                }

        defaultLegend.useDefaultSymbol(true);

        }

        public Object getLabeling() {

                return labelingStragegy;

        }

}