| gvSIG desktop 1

/* 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

 */

package org.gvsig.fmap.mapcontext.rendering.symbols;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics2D;

import java.awt.Rectangle;

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.geom.Rectangle2D;

import javax.print.attribute.PrintRequestAttributeSet;

import org.gvsig.fmap.geom.Geometry;

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

import org.gvsig.fmap.geom.primitive.Surface2D;

import org.gvsig.fmap.mapcontext.ViewPort;

import com.iver.utiles.StringUtilities;

import com.iver.utiles.XMLEntity;

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

/**

 * SimpleTextSymbol is a class used to create symbols composed using a text defined by

 * the user.This text can be edited (changing the color, the font of the characters, and

 * the rotation of the text).

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

 *

 */

public class SimpleTextSymbol extends AbstractSymbol implements ITextSymbol {

        private String text = "";

        private Font font = new Font("Arial", Font.PLAIN, 12);

        private Color textColor = Color.BLACK;

        private double rotation;

        private FontRenderContext frc = new FontRenderContext(

                        new AffineTransform(), false, true);

        public void draw(Graphics2D g, AffineTransform affineTransform, Geometry geom, Cancellable cancel) {

                if (!isShapeVisible()) return;

                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

                g.setColor(textColor);

                g.setFont(font);

                g.translate(((org.gvsig.fmap.geom.primitive.Point2D) geom).getX(), ((org.gvsig.fmap.geom.primitive.Point2D) geom).getY());

                g.rotate(rotation);

                g.drawString(getText(), 0, getBounds().height);

                Rectangle2D bounds = getBounds();

                bounds.setFrame(0, 0, bounds.getWidth(), bounds.getHeight());

                g.rotate(-rotation);

                g.translate(-((org.gvsig.fmap.geom.primitive.Point2D) geom).getX(), -((org.gvsig.fmap.geom.primitive.Point2D) geom).getY());

        }

        public void drawInsideRectangle(Graphics2D g,

                        AffineTransform scaleInstance, Rectangle r) throws SymbolDrawingException {

                int s = getFont().getSize();

                setFontSize(r.getHeight());

                draw(g, null, new org.gvsig.fmap.geom.primitive.Point2D(r.getX(), r.getY()), null);

                setFontSize(s);

        }

        public int getOnePointRgb() {

                return textColor.getRGB();

        }

        public void getPixExtentPlus(org.gvsig.fmap.geom.Geometry geom, float[] distances,

                        ViewPort viewPort, int dpi) {

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

        }

        public ISymbol getSymbolForSelection() {

                return this; // a text is not selectable

        }

        public int getSymbolType() {

                return Geometry.TYPES.TEXT;

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

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

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

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

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

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

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

                xml.putProperty("text", text);

                xml.putProperty("textColor", StringUtilities.color2String(textColor));

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

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

                return xml;

        }

        public boolean isSuitableFor(Geometry geom) {

                return true;

        }

        public void setXMLEntity(XMLEntity xml) {

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

                                xml.getIntProperty("fontStyle"),

                                xml.getIntProperty("size"));

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

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

                text = xml.getStringProperty("text");

                textColor = StringUtilities.string2Color(xml.getStringProperty("textColor"));

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

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

        }

        public String getClassName() {

                return getClass().getName();

        }

        public void print(Graphics2D g, AffineTransform at, org.gvsig.fmap.geom.Geometry geom, PrintRequestAttributeSet properties){

                // TODO Implement it

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

        }

        public String getText() {

                return text;

        }

        public Font getFont() {

                return font;

        }

        public Color getTextColor() {

                return textColor;

        }

        public void setText(String text) {

                this.text = text;

        }

        public void setFont(Font font) {

                this.font = font;

        }

        public void setTextColor(Color color) {

                this.textColor = color;

        }

        public void setFontSize(double size) {

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

        }

        /**

         * Defines the angle of rotation for the text that composes the symbol

         *

         * @param rotation

         */

        public void setRotation(double rotation) {

                this.rotation = rotation;

        }

        /**

         * Returns an FShape which represents a rectangle containing the text in

         * <b>screen</b> units.

         */

        public Geometry getTextWrappingShape(org.gvsig.fmap.geom.primitive.Point2D p) {

                Font font = getFont();

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

                Shape shape = gv.getOutline((float) p.getX(), (float) p.getY());

                Geometry myFShape = new Surface2D(new GeneralPathX(shape.getBounds2D()));

                myFShape.transform(AffineTransform.getTranslateInstance(p.getX(), p.getY()));

                if (rotation != 0) {

                        myFShape.transform(AffineTransform.getRotateInstance(rotation));

                }

                return myFShape;

        }

        public Rectangle getBounds() {

//                FontMetrics fm = g.getFontMetrics();

//                Rectangle2D rect = fm.getStringBounds("graphics", g);

                Rectangle bounds = getTextWrappingShape(new org.gvsig.fmap.geom.primitive.Point2D(0,0)).getBounds();

                return bounds;

        }

        public void setCartographicSize(double cartographicSize, Geometry geom) {

                setFontSize(cartographicSize);

        }

        public double toCartographicSize(ViewPort viewPort, double dpi, Geometry geom) {

                double oldSize = getFont().getSize();

                setCartographicSize(getCartographicSize(

                                                                viewPort,

                                                                dpi,

                                                                geom),

                                                        geom);

                return oldSize;

        }

        public double getCartographicSize(ViewPort viewPort, double dpi, Geometry geom) {

                return CartographicSupportToolkit.

                                        getCartographicLength(this,

                                                                                  getFont().getSize(),

                                                                                  viewPort,

                                                                                  dpi);

        }

}