Application: gvSIG desktop

/*

 * PxRaster.java

 */

package org.cresques.px;

import java.awt.geom.Point2D;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.image.ImageObserver;

import org.cresques.geo.ViewPort;

import org.cresques.io.EcwFile;

import org.cresques.io.GeoRasterFile;

public class PxRaster extends PxObj {

        protected GeoRasterFile geoFile = null;

        protected ImageObserver component = null;

        int transparente = 0x10ffff00;

        String vName = null;

        boolean pintaMarco = false; 

        /**

         * Constructor.

         * 

         * @param fname

         * @param component

         */        

        public PxRaster(ImageObserver component) {

                this.component = component;

        }

        public PxRaster(String fname, ImageObserver component) {

                geoFile = new EcwFile(fname);//loadECW(fname);

                this.component = component;

                extent = geoFile.getExtent();

                geoFile.setView(geoFile.getExtent());

        }

        public PxRaster(String fname, ImageObserver component, Extent view) {

                geoFile = new EcwFile(fname);//loadECW(fname);

                this.component = component;

                extent = geoFile.getExtent();

                geoFile.setView(view);

                //double x = 680800,y = 4128600;

                //setView(new Extent(x, y, x+4200, y-4200),"Huelva capital");

        }

        public PxRaster(EcwFile eFile, ImageObserver component, Extent view) {

                geoFile = eFile;//loadECW(fname);

                this.component = component;

                extent = eFile.getExtent();

                eFile.setView(view);

        }

        public void setTransparency(boolean t) {geoFile.setTransparency(t);}

        /**

         * Cambia la vista (viewport) sobre el raster.

         * 

         * @param v

         * @param vName

         */

        public void setView(Extent v, String vName) {

                geoFile.setView(v);

                this.vName = vName;

        }

        /**

         * Obtiene la escala.

         * 

         * @param width

         * @param height

         * @return

         */

        public double[] getScale(int width, int height) {

                double scale[] = new double[2];

                scale[0] = ((float) width) /geoFile.getView().width();                

                scale[1] = ((float) height)/geoFile.getView().height();                

                return scale;

        }

        /**

         * 'Normaliza' la vista en funci?n del extent del raster.

         * 

         * @param mat

         * @param sz

         */

        void calculateNewView(Extent sz) {

                double vx = sz.minX(), vy = sz.minY(), vx2 = sz.maxX(), vy2 = sz.maxY();

                if (sz.minX() < extent.minX()) vx = extent.minX();

                if (sz.minY() < extent.minY()) vy = extent.minY();

                if (sz.maxX() > extent.maxX()) vx2 = extent.maxX();

                if (sz.maxY() > extent.maxY()) vy2 = extent.maxY();

                geoFile.setView(new Extent(vx, vy, vx2, vy2));

        }

        /**

         * Dibuja el raster

         */        

        public void draw(Graphics2D g, ViewPort vp) {

                System.out.println("PxRaster.draw(): vp.extent = "+ vp.getExtent());

                System.out.println("PxRaster.draw():    extent = "+ getExtent());

                if (vp.getExtent().minX()> extent.maxX()) return;

                if (vp.getExtent().minY()> extent.maxY()) return;

                if (vp.getExtent().maxX()< extent.minX()) return;

                if (vp.getExtent().maxY()< extent.minY()) return;

                calculateNewView(vp.getExtent()); 

                Extent v = geoFile.getView();

                double x = v.minX();

                double y = v.minY();

                double w = v.width();

                double h = v.height();

                System.out.println("Pinto PxRaster:" + v);

                double scalex = vp.mat.getScaleX()        /* g.getTransform().getScaleX()*/ ,

                        scaley = vp.mat.getScaleY()                /* g.getTransform().getScaleY() */;

                int wImg = (int) Math.abs(w*scalex), hImg = (int) Math.abs(h*scaley);

                System.out.println("Sz=("+wImg+","+hImg+"); scale=("+scalex+","+scaley+")");

                if (wImg <= 0 || hImg <= 0) return;

                Image geoImage = geoFile.updateImage(wImg, hImg);

                Point2D.Double pt = new Point2D.Double(x, y+h);

                try {

                        System.out.println("Dibujando PxRaster: pt0 = "+pt);

                        vp.mat.transform(pt, pt);

                        System.out.println("Dibujando PxRaster: pt1 = "+pt);

                        if (geoFile != null) {

                                System.out.println("Dibujando PxRaster ...");

                                g.drawImage(geoImage, (int) Math.round(pt.getX()), (int) Math.round(pt.getY()), component);

                                System.out.println("Dibujando PxRaster: Hecho.");

                        } else {

                                System.err.println("Dibujando PxRaster: Foto no cargada.");

                        }

                } catch (Exception e) {

                        e.printStackTrace();

                };

                if (pintaMarco) {

                        drawMarco(g, vp);

                }

        }

        public void drawMarco(Graphics2D g, ViewPort vp) {

//                Color color = new Color(255,222,165,128), fillColor = new Color(255,214,132,128);

                Color color = new Color(0,0,0), fillColor = new Color(255,214,132,128);

                new PxRect((int) extent.minX(), (int) extent.minY(), (int) extent.width(), (int) extent.height(), color, fillColor).draw(g, vp);

                //new PxLine((int) extent.minX(), (int) extent.minY(), (int) extent.maxX(), (int) extent.maxY(), color).draw(g, vp);

                //new PxLine((int) extent.maxX(), (int) extent.minY(), (int) extent.minX(), (int) extent.maxY(), color).draw(g, vp);

        }

}