Application: gvSIG desktop

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

 *

 * Copyright (C) 2005 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

 */

/* CVS MESSAGES:

 *

 * $Id: CharacterMarkerSymbol.java 14501 2007-10-08 15:47:31Z jdominguez $

 * $Log$

 * Revision 1.27  2007-09-21 12:25:32  jaume

 * cancellation support extended down to the IGeometry and ISymbol level

 *

 * Revision 1.26  2007/08/09 07:20:03  jvidal

 * javadoc

 *

 * Revision 1.25  2007/07/23 06:52:25  jaume

 * default selection color refactored, moved to MapContext

 *

 * Revision 1.24  2007/07/18 06:54:34  jaume

 * continuing with cartographic support

 *

 * Revision 1.23  2007/07/03 10:58:29  jaume

 * first refactor on CartographicSupport

 *

 * Revision 1.22  2007/06/29 13:07:01  jaume

 * +PictureLineSymbol

 *

 * Revision 1.21  2007/06/07 06:50:40  jaume

 * *** empty log message ***

 *

 * Revision 1.20  2007/05/29 15:46:37  jaume

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 *

 * Revision 1.19  2007/05/28 15:36:42  jaume

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 * Revision 1.18  2007/05/17 09:32:06  jaume

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 * Revision 1.17  2007/05/09 16:07:26  jaume

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 * Revision 1.16  2007/05/09 11:05:28  jaume

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 * Revision 1.15  2007/05/08 08:47:40  jaume

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 *

 * Revision 1.14  2007/04/26 11:41:00  jaume

 * attempting to let defining size in world units

 *

 * Revision 1.13  2007/04/20 07:11:11  jaume

 * *** empty log message ***

 *

 * Revision 1.12  2007/04/19 16:01:27  jaume

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 * Revision 1.11  2007/04/19 14:21:30  jaume

 * *** empty log message ***

 *

 * Revision 1.10  2007/03/26 14:24:13  jaume

 * implemented Print

 *

 * Revision 1.9  2007/03/21 11:37:00  jaume

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 *

 * Revision 1.8  2007/03/21 11:02:17  jaume

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 *

 * Revision 1.7  2007/03/09 11:20:56  jaume

 * Advanced symbology (start committing)

 *

 * Revision 1.5.2.8  2007/02/21 07:34:09  jaume

 * labeling starts working

 *

 * Revision 1.5.2.7  2007/02/16 10:54:12  jaume

 * multilayer splitted to multilayerline, multilayermarker,and  multilayerfill

 *

 * Revision 1.5.2.6  2007/02/15 16:23:44  jaume

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 * Revision 1.5.2.5  2007/02/14 09:58:37  jaume

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 * Revision 1.5.2.4  2007/02/12 15:15:20  jaume

 * refactored interval legend and added graduated symbol legend

 *

 * Revision 1.5.2.3  2007/02/09 07:47:04  jaume

 * Isymbol moved

 *

 * Revision 1.5.2.2  2007/02/05 14:59:04  jaume

 * *** empty log message ***

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 * Revision 1.5.2.1  2007/01/30 18:10:45  jaume

 * start commiting labeling stuff

 *

 * Revision 1.5  2007/01/25 16:25:23  jaume

 * *** empty log message ***

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 * Revision 1.4  2007/01/24 17:58:22  jaume

 * new features and architecture error fixes

 *

 * Revision 1.3  2007/01/16 11:50:44  jaume

 * *** empty log message ***

 *

 * Revision 1.2  2007/01/10 16:39:41  jaume

 * ISymbol now belongs to com.iver.cit.gvsig.fmap.core.symbols package

 *

 * Revision 1.1  2007/01/10 16:31:36  jaume

 * *** empty log message ***

 *

 * Revision 1.6  2006/12/04 17:13:39  fjp

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 * Revision 1.5  2006/11/14 11:10:27  jaume

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 * Revision 1.4  2006/11/09 18:39:05  jaume

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 * Revision 1.3  2006/11/08 10:56:47  jaume

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 * Revision 1.2  2006/11/06 17:08:45  jaume

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 * Revision 1.1  2006/10/31 16:16:34  jaume

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 * Revision 1.4  2006/10/30 19:30:35  jaume

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 * Revision 1.3  2006/10/29 23:53:49  jaume

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 *

 * Revision 1.2  2006/10/26 16:27:33  jaume

 * support for composite marker symbols (not tested)

 *

 * Revision 1.1  2006/10/25 10:50:41  jaume

 * movement of classes and gui stuff

 *

 * Revision 1.3  2006/10/24 19:54:16  jaume

 * added IPersistence

 *

 * Revision 1.2  2006/10/24 08:02:51  jaume

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 * Revision 1.1  2006/10/18 07:54:06  jaume

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 *

 */

package com.iver.cit.gvsig.fmap.core.symbols;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.RenderingHints;

import java.awt.Shape;

import java.awt.font.FontRenderContext;

import java.awt.font.GlyphVector;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.image.BufferedImage;

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

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

import com.iver.cit.gvsig.fmap.core.FPoint2D;

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

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

import com.iver.cit.gvsig.fmap.core.styles.IMask;

import com.iver.utiles.StringUtilities;

import com.iver.utiles.XMLEntity;

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

/**

 * Allows to use a source of TrueType characters  to define the marker that will

 * substitute the symbol.If the picture is defined in a source, the performance is

 * more agile.

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

 */

public class CharacterMarkerSymbol extends AbstractMarkerSymbol {

        private Font font = new Font("Arial", Font.PLAIN, 20);

        private int unicode;

        private ISymbol selectionSymbol;

        private VisualCorrection visualCorrection;

        /**

         * Creates a new instance of CharacterMarker with default values

         *

         */

        public CharacterMarkerSymbol() {

                super();

        }

        /**

         * Creates a new instance of CharacterMarker specifying the marker source

         * font, the character code corresponding to the symbol, and the color that

         * will be used in rendering time.

         *

         * @param font -

         *            src Font

         * @param charCode -

         *            character code of the symbol for this font

         * @param color -

         *            color to be used in when rendering.

         */

        public CharacterMarkerSymbol(Font font, int charCode, Color color) {

                super();

                this.font = font;

                unicode = charCode;

                setColor(color);

        }

        /**

         * Returns the font that will be used to define the symbol

         * @return font

         */

        public Font getFont() {

                return font;

        }

        /**

         * Sets the font that will be used to define the symbol

         * @return font

         */

        public void setFont(Font font) {

                this.font = font;

        }

        public ISymbol getSymbolForSelection() {

                if (selectionSymbol == null) {

                        XMLEntity xml = getXMLEntity();

                        xml.putProperty("color", StringUtilities.color2String(MapContext.getSelectionColor()));

                        selectionSymbol = SymbologyFactory.createSymbolFromXML(xml, getDescription() + " version for selection.");

                }

                return selectionSymbol;

        }

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

                g.setColor(getColor());

                double theta = getRotation();

                int xOffset = (int) getOffset().getX(); // * multiplicador d'unitats;

                int yOffset = (int) getOffset().getY(); // * multiplicador d'unitats

                double size = getSize();

                if (size < 0.0001) {

                        return;

                }

                Point2D p = new Point2D.Double(((FPoint2D) shp).getX(), ((FPoint2D) shp)

                                .getY());

                if (isVisuallyCorrected()) {

                        size *= visualCorrection.sizeScale;

                        p.setLocation(p.getX() - xOffset*size*visualCorrection.xOffsetScale, p.getY() - yOffset*size*visualCorrection.yOffsetScale);

                }

                g.setFont(getFont().deriveFont((float)size));

                g.translate((int) (p.getX() + xOffset), (int) (p.getY()  + yOffset));

                if (theta != 0)        g.rotate(theta);

                char[] text = new char[] { (char) unicode };

                IMask mask = getMask();

                if (mask != null) {

                        FontRenderContext frc = g.getFontRenderContext();

                        GlyphVector gv = font.createGlyphVector(frc, text );

                        Shape markerShape = gv.getOutline(0, 0);

                        mask.

                                 getFillSymbol().

                                         draw(g, null, mask.getHaloShape(markerShape), cancel);

                }

                g.drawChars(text, 0, text.length, - (int) (size*0.4), (int) (size*0.4));

                if (theta!=0) g.rotate(-theta);

                g.translate(-(int) (p.getX() + xOffset), - (int) (p.getY() + yOffset));

        }

        public int getPixExtentPlus(Graphics2D g, AffineTransform affineTransform,

                        Shape shp) {

                return 0;

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                // the class name

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

                // color

                xml.putProperty("color", StringUtilities.color2String(getColor()));

                // font

                xml.putProperty("font", font.getFontName());

                // font style

                xml.putProperty("fontStyle", font.getStyle());

                // marker size

                xml.putProperty("size", font.getSize());

                // symbol code

                xml.putProperty("symbolCode", unicode);

                // description

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

                // is shape visible

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

                // x offset

                xml.putProperty("xOffset", getOffset().getX());

                // y offset

                xml.putProperty("yOffset", getOffset().getY());

                // rotation

                xml.putProperty("rotation", getRotation());

                // measure unit

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

                // reference system

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

                return xml;

        }

        public int getSymbolType() {

                return FShape.POINT;

        }

        /**

         * Sets the unicode for a symbol represented by a character

         * @param symbol, int

         */

        public void setUnicode(int symbol) {

                this.unicode = symbol;

        }

        /**

         * Obtains the unicode for a symbol

         * @return unicode, int

         */

        public int getUnicode() {

                return unicode;

        }

        public String getClassName() {

                return this.getClass().getName();

        }

        public void setXMLEntity(XMLEntity xml) {

                setColor(StringUtilities.string2Color(xml.getStringProperty("color")));

                Point p = new Point();

                p.setLocation(xml.getDoubleProperty("xOffset"), xml.getDoubleProperty("yOffset"));

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

                font = new Font(xml.getStringProperty("font"),

                                xml.getIntProperty("fontStyle"),

                                (int) xml.getFloatProperty("size"));

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

                unicode = xml.getIntProperty("symbolCode");

                setOffset(p);

                setRotation(xml.getDoubleProperty("rotation"));

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

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

        }

        public void print(Graphics2D g, AffineTransform at, FShape shape) throws ReadDriverException {

                // TODO Implement it

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

        }

        public double getSize() {

                return font.getSize();

        }

        public void setSize(double size) {

                if (size == 0) {

                        try {

                                Double.parseDouble("setSize com size="+size);

                        }catch(Exception e) {

                                e.printStackTrace();

                        }

                }

                font = new Font(font.getName(), font.getStyle(), (int) size);

        }

        /**

         * Returns true of false depending if the character marker symbol selected is visually

         * corrected.That is, if the character has been properly scaled to use a specific number

         * of pixels to be represented.

         *

         * @return boolean

         */

        public boolean isVisuallyCorrected() {

                return visualCorrection != null;

        }

        /**

         * Sets the visual correction for a character in order to scale it if it is necessary.

         *

         * @return boolean

         */

        public void setVisuallyCorrected(boolean visuallyCorrected) {

                if (visuallyCorrected && visualCorrection == null) {

                        CharacterMarkerSymbol clone = (CharacterMarkerSymbol) SymbologyFactory.createSymbolFromXML(getXMLEntity(), getDescription());

                        int frameSize = 200;

                        double symbolSize = 100;

                        BufferedImage bi = new BufferedImage(frameSize, frameSize, BufferedImage.TYPE_INT_ARGB);

                        Graphics2D aGraphics = bi.createGraphics();

                        clone.setOffset(new Point2D.Double(0,0));

                        clone.setSize(symbolSize);

                        clone.setColor(Color.PINK);

                        // draw it at center of the image

                        FPoint2D pCenter =  new FPoint2D(frameSize/2,frameSize/2);

                        clone.draw(aGraphics, new AffineTransform(), pCenter, null);

                        int realTop    = -1;

                        int realBottom = -1;

                        int realLeft   = -1;

                        int realRight  = -1;

                        // let's see where the highest pixel is in Y-axis

                        boolean done = false;

                        for (int j = 0; !done && j < bi.getHeight(); j++) {

                                for (int i = 0; !done && i < bi.getWidth(); i++) {

                                        if (bi.getRGB(i, j) != 0) {

                                                realTop = j;

                                                done = true;

                                        }

                                }

                        }

                        // let's see where the lowest pixel is in Y-axis

                        done = false;

                        for (int j =  bi.getHeight()-1; !done &&  j >= 0; j--) {

                                for (int i = 0; !done &&  i < bi.getWidth(); i++) {

                                        if (bi.getRGB(i, j) != 0) {

                                                realBottom = i;

                                                done = true;

                                        }

                                }

                        }

                        // let's see where the first pixel at left is in X-axis

                        done = false;

                        for (int i = 0; !done &&  i < bi.getWidth(); i++) {

                                for (int j = 0; !done &&  j < bi.getHeight(); j++) {

                                        if (bi.getRGB(i, j) != 0) {

                                                realLeft = i;

                                                done = true;

                                        }

                                }

                        }

                        // let's see where the first pixel at right is in X-axis

                        done = false;

                        for (int i = bi.getWidth()-1; !done &&  i >=0 ; i--) {

                                for (int j = 0; !done &&  j < bi.getHeight(); j++) {

                                        if (bi.getRGB(i, j) != 0) {

                                                realRight = i;

                                                done = true;

                                        }

                                }

                        }

                        int realWidth = realRight-realLeft;

                        int realHeight = realTop-realBottom;

                        visualCorrection = new VisualCorrection();

                        if (realBottom!=-1 && realTop!=-1 && realLeft!=-1 && realRight != -1) {

                                double correctingSize = Math.max(realHeight, realWidth);

                                visualCorrection.sizeScale = clone.getSize() / correctingSize;

                        }

                        if (realLeft!=-1 && realRight!=-1) {

                                double correctingCenterX = (((realWidth)*0.5)+realLeft);

                                double correctingCenterY = (((realHeight)*0.5)+realBottom);

                                visualCorrection.xOffsetScale = (pCenter.getX() - correctingCenterX) / frameSize;

                                visualCorrection.yOffsetScale = (pCenter.getY() - correctingCenterY) / frameSize;

                        }

//                        clone.setSize(clone.getSize()*visualCorrection.sizeScale);

//                        clone.setOffset(new Point2D.Double(clone.getSize()*.5*visualCorrection.xOffsetScale, clone.getSize()*.5*visualCorrection.yOffsetScale));

//                        clone.setColor(Color.ORANGE);

//

//                        clone.draw(aGraphics, new AffineTransform(), pCenter);

//                        try {

//                                ImageIO.write(bi, "png",

//                                                new File("E:/prova-imatges/"+

//                                                                System.currentTimeMillis()

//                                                                +".png"));

//                        } catch (IOException e) {e.printStackTrace();};

                } else {

                        visualCorrection = null;

                }

        }

        /**

         * Class to be used for the methods that control the visual correction of a character.

         * This visual correction has the responsibility of modify the dimensions of the

         * character to be used as a symbol(in case that the user wants to use more or less

         * pixels to represent it )

         *

         */

        private class VisualCorrection {

                double xOffsetScale = 1;

                double yOffsetScale = 1;

                double sizeScale = 1;

        }

}