Application: gvSIG desktop

/*

 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.

 * 

 * Copyright (C) 2004-5. 

 *

 * 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:

 * 

 * cresques@gmail.com

 */

package org.cresques.px;

import java.awt.Color;

//import java.awt.Polygon;

import java.awt.Graphics2D;

import java.awt.FontMetrics;

import java.awt.geom.Point2D;

import java.util.Vector;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.Polygon2D;

import org.cresques.geo.Projected;

import org.cresques.geo.Projection;

import org.cresques.geo.ReProjection;

import org.cresques.geo.ViewPortData;

import org.cresques.geo.cover.Hoja;

public class PxContour extends PxObj implements Projected {

        IProjection proj = null;

        final static Color colorBase  = new Color(  0,  64, 128, 255);//Color(255,214,132,255);

        final static Color fColorBase = new Color( 64, 128, 192, 255);//Color(255,222,165,64);

        protected String name;

        protected String fName;

        private Color fColor = fColorBase;

        private Color pc = colorBase;

        private Polygon2D polygon = null;

        public void _PxContour(Point2D pt1, Point2D pt2, String fName, String name) {

                this.fName = fName;

                this.name = name;

                extent = new Extent(pt1, pt2);

        }

        public PxContour(Extent e, String fName, String name, IProjection proj) {

                this.fName = fName;

                this.name = name;

                this.proj = proj;

                Point2D [] v = new Point2D[4]; 

                v[0] = proj.createPoint(e.minX(), e.minY());

                v[1] = proj.createPoint(e.maxX(), e.minY());

                v[2] = proj.createPoint(e.maxX(), e.maxY());

                v[3] = proj.createPoint(e.minX(), e.maxY());

                setContour(v);

        }

        public void _PxContour(Point2D[] v, String fName, String name) {

                this.fName = fName;

                this.name = name;

                setContour(v);

        }

        public PxContour(Hoja h) {

                name = h.getCode();

                setContour(h.getVertex());

        }

        public PxContour(Point2D[] v, String name) {

                this.name = name;

                setContour(v);

        }

        public IProjection getProjection() { return proj; }

        public void setProjection(IProjection p) { proj = p; }

        private void setContour(Point2D [] v) {

                extent = new Extent();

                polygon = new Polygon2D();

                for (int i=0; i<v.length; i++) {

                        polygon.addPoint(v[i]);

                        extent.add(v[i]);

                }

        }

        /**

         * Vertices de un contorno.

         * @return

         */

        public Vector getVertex() {

                return polygon;

        }

        public Point2D [] getPtList() {

                Point2D [] v = new Point2D[polygon.size()];

                for (int i=0; i<polygon.size(); i++)

                        v[i] = (Point2D) polygon.get(i);

                return v;

        }

        public String getName() { return name; }

        public Color c() {return pc;}

        public Color c(Color color) {this.pc = color; return pc;}

        public Color fillColor() {return fColor;}

        public Color fillColor(Color c) {fColor = c; return fColor;}

        public void setColor(Color color) {pc = color;}

        public Color getColor() { return pc;        }

        public void setFillColor(Color color) {fColor = color;}

        public Color getFillColor() { return fColor; }

        public void reProject(ICoordTrans rp) {

                Polygon2D savePol = polygon;

                polygon = new Polygon2D();

                extent = new Extent();

                Point2D ptDest = null;

                for (int i=0; i<savePol.size(); i++) {

                        ptDest = rp.getPDest().createPoint(0.0,0.0);

                        ptDest = rp.convert((Point2D) savePol.get(i), ptDest);

                        polygon.addPoint(ptDest);

                        extent.add(ptDest);

                }

                setProjection(rp.getPDest());

        }

        public void draw(Graphics2D g, ViewPortData vp, ICoordTrans rp) {

                IProjection saveProj = proj;

                Polygon2D savePol = polygon;

                Extent saveExt = extent;

                reProject(rp);

                draw(g, vp);

                polygon = savePol;

                extent = saveExt;

                proj = saveProj;

        }

        public void draw(Graphics2D g, ViewPortData vp) {

                //AffineTransform msave=g.getTransform();

                //g.setTransform(vp.mat);

                // relleno el marco si es preciso

                if (fColor != null) {

                        g.setColor(fColor);

                        if (polygon == null)

                                g.fillRect((int)extent.minX(), (int)extent.minY(),

                                        (int)extent.width(), (int)extent.height());

                        else

                                polygon.fill(g, vp);

                }

                // pinto el marco si es preciso

                if (pc != null) g.setColor(pc);

                if (polygon != null)

                        polygon.draw(g, vp);

                else

                        g.drawRect((int)extent.minX(), (int)extent.minY(),

                                (int)extent.width(), (int)extent.height());

                //g.setTransform(msave);

                // Pinto el name

                FontMetrics fm = g.getFontMetrics();

                int w = fm.stringWidth(name), h = fm.getAscent();

                Point2D.Double pt = new Point2D.Double((extent.minX()+extent.width()/2.0), 

                        (extent.minY()+extent.height()/2.0));

                try {

                        Point2D.Double min = new Point2D.Double(extent.minX(), extent.minY());

                        Point2D.Double max = new Point2D.Double(extent.maxX(), extent.minY());

                        vp.mat.transform(min, min);

                        vp.mat.transform(max, max);

                        if ((max.getX()-min.getX()) < w) return;

                        vp.mat.transform(pt, pt);

                        //if ((int)(pt2.getY()-pt1.getY()) >= g.getFontMetrics().getAscent())

                        g.drawString(name, (int) pt.getX()-w/2, (int)pt.getY()+h/2) ;

                } catch (Exception e) {

                        e.printStackTrace();

                }

        }

}