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.symbology.fmap.mapcontext.rendering.symbol.fill.impl;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.geom.AffineTransform;

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

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

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

import org.gvsig.fmap.mapcontext.MapContext;

import org.gvsig.fmap.mapcontext.MapContextLocator;

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

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol_v2;

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

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

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

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

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

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

import org.gvsig.tools.task.Cancellable;

import org.gvsig.tools.util.Callable;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Basic fill symbol. It will allow to paint a shape with its filling color (and

 * transparency) and the outline.

 *

 * @author 2005-2008 jaume dominguez faus - jaume.dominguez@iver.es

 * @author 2009-     <a href="cordinyana@gvsig.org">César Ordiñana</a> - gvSIG

 * team

 */

public class SimpleFillSymbol extends AbstractFillSymbol implements ISimpleFillSymbol, TransparencySupport {

    private static final String SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME = "SimpleFillSymbol";

    private static final Logger LOG = LoggerFactory.getLogger(SimpleFillSymbol.class);

    private static final GeometryManager geomManager = GeometryLocator.getGeometryManager();

    private static final String FIELD_SYMBOL_FOR_SELECTION = "symbolForSelection";

    private SimpleFillSymbol symbolForSelection;

    public SimpleFillSymbol() {

        super();

    }

    @Override

    public ISymbol getSymbolForSelection(Color selectionColor) {

        if (symbolForSelection == null) {

            SimpleFillSymbol selectionSymbol = (SimpleFillSymbol) cloneForSelection(selectionColor);

            if (selectionSymbol != null) {

                selectionSymbol.setHasFill(true);

                setSymbolForSelection(selectionSymbol);

            }

        } else {

            symbolForSelection.setColor(selectionColor);

        }

        if (symbolForSelection instanceof TransparencySupport) {

            symbolForSelection.setTransparency(this.getTransparency());

        }

        return symbolForSelection;

    }

    @Override

    public void draw(Graphics2D g, AffineTransform affineTransform, Geometry geom, Feature f, Cancellable cancel, Rectangle r) {

        if(r != null){

            geom = this.getSampleGeometry(r);

        }

        Color c = getFillColor();

        if (true) {

            // Esto deberia ser para optimizar el pintado de geometrias grandes.

            try {

                Geometry env = geom.getEnvelope().getGeometry();

                env.transform(affineTransform);

                Envelope env2 = env.getEnvelope();

                if (env2.getLength(0) < 1.5 && env2.getLength(1) < 1.5) {

                    Point upperCorner = env2.getUpperCorner();

                    int y = (int) upperCorner.getY();

                    int x = (int) upperCorner.getX();

                    if (c != null && hasFill()) {

                        g.setColor(c);

                        g.drawLine(x, y, x, y);

                    }

                    if (getOutline() != null && hasOutline()) {

                        g.setColor(getOutline().getColor());

                        g.drawLine(x, y, x, y);

                    }

                    return;

                }

            } catch (Exception ex) {

                LOG.warn("Error optimizing the drawing of the geometry. Continues with normal drawing.", ex);

                // Do nothing, continue with the draw of the original geometry

            }

        }

        if (c != null && hasFill()) {

            g.setColor(c);

            g.fill(geom.getShape(affineTransform));

        }

        if (getOutline() != null && hasOutline()) {

            if (getOutline() instanceof ISymbol_v2) {

                getOutline().setCartographicContext(this.getCartographicContext());

                ((ISymbol_v2)getOutline()).draw(g, affineTransform, geom, f, cancel, null);

            } else {

                getOutline().draw(g, affineTransform, geom, f, cancel);

            }

        }

    }

    @Override

    public int getSymbolType() {

        return Geometry.TYPES.SURFACE;

    }

    public String getClassName() {

        return getClass().getName();

    }

    @Override

    public Object clone() throws CloneNotSupportedException {

        SimpleFillSymbol copy = (SimpleFillSymbol) super.clone();

        // Clone selection

        if (symbolForSelection != null) {

            copy.symbolForSelection = (SimpleFillSymbol) symbolForSelection

                    .clone();

        }

        return copy;

    }

    private void setSymbolForSelection(SimpleFillSymbol symbolForSelection) {

        this.symbolForSelection = symbolForSelection;

    }

    @Override

    public void loadFromState(PersistentState state)

            throws PersistenceException {

        // Set parent fill symbol properties

        super.loadFromState(state);

        setSymbolForSelection((SimpleFillSymbol) state.get(FIELD_SYMBOL_FOR_SELECTION));

    }

    @Override

    public void saveToState(PersistentState state) throws PersistenceException {

        // Save parent fill symbol properties

        super.saveToState(state);

        // Don't use the getSymbolForSelection method, as it will create it

        // if it does not exist, and persistence will enter an infinite loop

        state.set(FIELD_SYMBOL_FOR_SELECTION, symbolForSelection);

    }

    @Override

    public void setTransparency(double transparency) {

        Color c = getFillColor();

        c = new Color(c.getRed(), c.getGreen(), c.getBlue(), (int) (transparency * 255));

        setFillColor(c);

        ILineSymbol theOutline = getOutline();

        if (theOutline != null && theOutline instanceof TransparencySupport) {

            ((TransparencySupport) theOutline).setTransparency(transparency);

        }

        ISymbol selectionSymbol = this.symbolForSelection;

        if (selectionSymbol != null && selectionSymbol instanceof TransparencySupport) {

            ((TransparencySupport) selectionSymbol).setTransparency(transparency);

        }

    }

    @Override

    public void setOutline(ILineSymbol outline) {

        super.setOutline(outline);

    }

    @Override

    public double getTransparency() {

        return ((double)getFillAlpha())/255;

    }

    public static class RegisterPersistence implements Callable {

        @Override

        public Object call() throws Exception {

            PersistenceManager manager = ToolsLocator.getPersistenceManager();

            if (manager.getDefinition(SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME) == null) {

                DynStruct definition = manager.addDefinition(

                        SimpleFillSymbol.class,

                        SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME,

                        SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME + " Persistence definition",

                        null,

                        null

                );

                // Extend the FillSymbol base definition

                definition.extend(manager.getDefinition(FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME));

                // Selection Symbol

                definition.addDynFieldObject(FIELD_SYMBOL_FOR_SELECTION).setClassOfValue(SimpleFillSymbol.class).setMandatory(false);

            }

            return Boolean.TRUE;

        }

    }

    public static class RegisterSymbol implements Callable {

        @Override

        public Object call() throws Exception {

            int[] shapeTypes;

            SymbolManager manager = MapContextLocator.getSymbolManager();

            shapeTypes

                    = new int[]{Geometry.TYPES.SURFACE, Geometry.TYPES.CIRCLE,

                        Geometry.TYPES.ELLIPSE, Geometry.TYPES.MULTISURFACE,

                        Geometry.TYPES.ELLIPTICARC, Geometry.TYPES.FILLEDSPLINE,

                        Geometry.TYPES.MULTIPOLYGON, Geometry.TYPES.POLYGON

                    };

            manager.registerSymbol(IFillSymbol.SYMBOL_NAME,

                    shapeTypes,

                    SimpleFillSymbol.class);

            return Boolean.TRUE;

        }

    }

}