Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.symbology.fmap.symbols;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.geom.AffineTransform;

import java.awt.geom.Line2D;

import java.awt.geom.Rectangle2D;

import javax.print.attribute.PrintRequestAttributeSet;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.core.CartographicSupportToolkit;

import com.iver.cit.gvsig.fmap.core.FPolygon2D;

import com.iver.cit.gvsig.fmap.core.FPolyline2D;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.GeneralPathX;

import com.iver.cit.gvsig.fmap.core.SymbologyFactory;

import com.iver.cit.gvsig.fmap.core.symbols.AbstractFillSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ILineSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ISymbol;

import com.iver.cit.gvsig.fmap.core.symbols.SymbolDrawingException;

import com.iver.utiles.StringUtilities;

import com.iver.utiles.XMLEntity;

import com.iver.utiles.swing.threads.Cancellable;

/**

 * LineFillSymbol allows to define a filling pattern composed by lines to complete the padding

 * of the polygon.

 * @autor jaume dominguez faus - jaume.dominguez@iver.es

 */

public class LineFillSymbol extends AbstractFillSymbol {

        private double angle;

        private ILineSymbol lineSymbol = SymbologyFactory.createDefaultLineSymbol();

        private double offset = 5, csOffset = offset;

        private double separation = 5, csSeparation = separation;

        private double symbolLineWidth;

        private LineFillSymbol symSel;

        /**

         * Returns the rotation angle of the lines that compose the filling pattern

         * @return angle

         */

        public double getAngle() {

                return angle;

        }

        /**

         * Sets the rotation angle of the lines that compose the filling pattern

         * @param angle

         */

        public void setAngle(double angle) {

                this.angle = angle;

        }

        /**

         * Gets the line symbol that is used to create the filling pattern.

         * @return lineSymbol, ILineSymbol

         */

        public ILineSymbol getLineSymbol() {

                return lineSymbol;

        }

        /**

         * Establishes the line symbol that is used to create the filling pattern.

         * @param lineSymbol,ILineSymbol

         */

        public void setLineSymbol(ILineSymbol lineSymbol) {

                if (lineSymbol != null)

                        symbolLineWidth = lineSymbol.getLineWidth();

                else

                        symbolLineWidth = 0;

                this.lineSymbol = lineSymbol;

        }

        /**

         * Gets the offset of the lines inside the filling pattern

         * @return offset

         */

        public double getOffset() {

                return offset;

        }

        /**

         * Sets the offset of the lines inside the filling pattern

         * @param offset

         */

        public void setOffset(double offset) {

                this.offset = offset;

                this.csOffset = offset;

        }

        /**

         * Returns the separation between lines that is used to create the filling pattern

         * @return

         */

        public double getSeparation() {

                return separation;

        }

        /**

         * Establishes the separation between lines that is used to create the filling pattern

         * @param separation

         */

        public void setSeparation(double separation) {

                if (separation == 0) separation = 1D;

                this.separation = separation;

                this.csSeparation = separation;

        }

        public void draw(Graphics2D g, AffineTransform affineTransform, FShape shp, Cancellable cancel) {

                Color fillColor = getFillColor();

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

                        g.setColor(getFillColor());

                        g.fill(shp);

                }

                if (lineSymbol != null) {

                        if (csSeparation < 1) csSeparation = 1;

                        g.setClip(shp);

                        g.setColor(Color.black);

                        Rectangle2D bounds = shp.getBounds();

                        //   g.draw(bounds);

                        double radius = Math.abs(Math.max(bounds.getHeight(), bounds.getWidth()));

                        double centerX = bounds.getCenterX();

                        double centerY = bounds.getCenterY();

                        double aux = -(radius+csOffset);

                        g.translate(centerX, centerY);

                        g.rotate(angle);

                        while ((cancel==null || !cancel.isCanceled()) && aux <= radius) {

                                double y = aux;

                                double x1 = - radius;

                                double x2 = radius;

                                Line2D line;

                                line = new Line2D.Double(x1, y, x2, y);

                                lineSymbol.draw(g, null, new FPolyline2D(new GeneralPathX(line)), null);

                                aux += csSeparation;

                        }

                        g.rotate(-angle);

                        g.translate(-centerX, -centerY);

                        g.setClip(null);

                }

                ILineSymbol outLineSymbol = getOutline();

                if (outLineSymbol != null && hasOutline())

                        outLineSymbol.draw(g, affineTransform, shp, cancel);

        }

        public void drawInsideRectangle(Graphics2D g,

                        AffineTransform scaleInstance, Rectangle r) throws SymbolDrawingException {

                draw(g, null, new FPolygon2D(new GeneralPathX(r)), null);

        }

        public ISymbol getSymbolForSelection() {

                if (symSel == null) symSel = new LineFillSymbol();

                symSel.setFillColor(ISymbol.SELECTION_COLOR);

                return symSel;

        }

        public int getSymbolType() {

                return FShape.POLYGON;

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                xml.putProperty("className", getClassName());

                xml.putProperty("desc", getDescription());

                xml.putProperty("isShapeVisible", isShapeVisible());

                xml.putProperty("angle", angle);

                xml.putProperty("offset", offset);

                xml.putProperty("separation", separation);

                xml.putProperty("symbolLineWidth", symbolLineWidth);

                xml.putProperty("referenceSystem", getReferenceSystem());

                xml.putProperty("unit", getUnit());

                if (getFillColor() !=null)

                        xml.putProperty("fillColor", StringUtilities.color2String(getFillColor()));

                xml.putProperty("hasFill", hasFill());

                if (lineSymbol!=null) {

                        XMLEntity xmlLine = lineSymbol.getXMLEntity();

                        xmlLine.putProperty("id", "fillLine");

                        xml.addChild(xmlLine);

                }

                ILineSymbol outline = getOutline();

                if (outline!=null) {

                        XMLEntity xmlOutline = outline.getXMLEntity();

                        xmlOutline.putProperty("id", "outline");

                        xml.addChild(xmlOutline);

                }

                xml.putProperty("hasOutline", hasOutline());

                return xml;

        }

        public void setXMLEntity(XMLEntity xml) {

                setDescription(xml.getStringProperty("desc"));

                setIsShapeVisible(xml.getBooleanProperty("isShapeVisible"));

                setAngle(xml.getDoubleProperty("angle"));

                setOffset(xml.getDoubleProperty("offset"));

                setSeparation(xml.getDoubleProperty("separation"));

                if (xml.contains("fillColor"))

                        setFillColor(StringUtilities.

                                        string2Color(xml.getStringProperty("fillColor")));

                if (xml.contains("hasFill"))

                        setHasFill(xml.getBooleanProperty("hasFill"));

                XMLEntity lineSymbolXML = xml.firstChild("id", "fillLine");

                if (lineSymbolXML != null) {

                        setLineSymbol((ILineSymbol) SymbologyFactory.

                                        createSymbolFromXML(lineSymbolXML, "fill symbol"));

                }

                XMLEntity outlineXML = xml.firstChild("id", "outline");

                if (outlineXML != null) {

                        setOutline((ILineSymbol) SymbologyFactory.

                                        createSymbolFromXML(outlineXML, "outline symbol"));

                }

                if (xml.contains("hasOutline"))

                        setHasOutline(xml.getBooleanProperty("hasOutline"));

                if (xml.contains("unit")) { // remove this line when done

                // measure unit (for outline)

                setUnit(xml.getIntProperty("unit"));

                // reference system (for outline)

                setReferenceSystem(xml.getIntProperty("referenceSystem"));

                }

        }

        public String getClassName() {

                return getClass().getName();

        }

        public void print(Graphics2D g, AffineTransform at, FShape shape,

                        PrintRequestAttributeSet properties) throws ReadDriverException {

                // TODO Auto-generated method stub

                throw new Error("Not yet implemented!");

        }

        public void setCartographicSize(double cartographicSize, FShape shp) {

                super.setCartographicSize(cartographicSize, shp);

                if (getLineSymbol()!=null) {

                        getLineSymbol().setCartographicSize(cartographicSize, shp);

                }

        }

        public double toCartographicSize(ViewPort viewPort, double dpi, FShape shp) {

                double s = super.toCartographicSize(viewPort, dpi, shp);

                csOffset = CartographicSupportToolkit.

                        getCartographicLength(this, offset, viewPort, dpi);

                csSeparation = CartographicSupportToolkit.

                        getCartographicLength(this, separation, viewPort, dpi);

                double csLineWidth = CartographicSupportToolkit.

                        getCartographicLength(this, symbolLineWidth, viewPort, dpi);

                if (getLineSymbol()!=null) {

                        getLineSymbol().setCartographicSize(csLineWidth, shp);

                }

                return s;

        }

        @Override

        public void setUnit(int unitIndex) {

                super.setUnit(unitIndex);

                if (getLineSymbol()!=null) {

                        getLineSymbol().setUnit(unitIndex);

                }

        }

        @Override

        public void setReferenceSystem(int system) {

                super.setReferenceSystem(system);

                if (getLineSymbol()!=null) {

                        getLineSymbol().setReferenceSystem(system);

                }

        }

}