Application: gvSIG desktop

package com.iver.ai2.gvsig3d.gui;

import java.awt.Component;

import java.awt.event.MouseEvent;

import java.awt.event.MouseMotionListener;

import org.gvsig.gui.beans.Messages;

import com.iver.ai2.gvsig3d.resources.ResourcesFactory;

import com.iver.andami.PluginServices;

import es.upv.ai2.libjosg.Group;

import es.upv.ai2.libjosg.Vec4;

import es.upv.ai2.libjosg.features.Text;

import es.upv.ai2.libjosg.planets.Planet;

import es.upv.ai2.libjosg.planets.PlanetViewer;

import es.upv.ai2.libjosg.planets.Planet.PlanetType;

import es.upv.ai2.libjosg.viewer.IViewerContainer;

/**

 * Use this class for draw items in HUD

 * 

 * @author julio

 * 

 */

public class Hud extends Group implements MouseMotionListener {

        private IViewerContainer m_canvas3d = null;

        private Planet m_planet = null;

        private String lonText;

        private String latText;

        private String lon;

        private String lat;

        private Text textoHud = new Text();

        private static String north;

        private static String south;

        private static String east;

        private static String west;

        static {

                north = Messages.getText("North");

                south = Messages.getText("South");

                east = Messages.getText("East");

                west = Messages.getText("West");

        }

        private int projectionType;

        /**

         * Constructor

         * 

         * @param m_canvas3d

         *            Viewer instance

         * @param m_planet

         *            Planet instance

         */

        public Hud(IViewerContainer m_canvas3d, Planet m_planet) {

                super();

                this.m_canvas3d = m_canvas3d;

                this.m_planet = m_planet;

                this.projectionType = m_planet.getType();

                // Inicialize object

                init();

        }

        /**

         * Inicilize the object params

         */

        private void init() {

                if (getProjectionType() == PlanetType.GEOCENTRIC) {

                        // Setting up longitud and latitud string

                        lonText = PluginServices.getText(this, "Ext3D.longitude");

                        latText = PluginServices.getText(this, "Ext3D.latitude");

                } else {

                        lonText = PluginServices.getText(this, "X") + " ";

                        ;

                        latText = PluginServices.getText(this, "Y") + " ";

                        ;

                }

                // Adding text to group

                this.addChild(textoHud);

                // Seting up text

                textoHud.setCharacterSize(14);

                textoHud.setColor(new Vec4(1.0f, 1.0f, 1.0f, 1.0f));

                textoHud.setBackdropColor(0.0f, 0.0f, 1.0f, 1.0f);

                if (ResourcesFactory.exitsResouce("arial.ttf"))

                        textoHud.setFont(ResourcesFactory.getResourcePath("arial.ttf"));

                else {

                        // TODO: This freeze the execution.. disable when working. 

                        //textoHud.setFont("arial.ttf");

                }

                textoHud.setPosition(10, 10, 0);

                textoHud.setBackdropType(Text.BackdropType.OUTLINE);

                textoHud.setAlignment(Text.AlignmentType.LEFT_CENTER);

                // Add mouse listener to viewer

                ((Component) m_canvas3d).addMouseMotionListener(this);

                // Update Hud

                updateHud();

        }

        /**

         * This method updates information of the HUD

         */

        public void updateHud() {

                if (m_planet.getType() == Planet.PlanetType.GEOCENTRIC) {

                        // Getting longitud and latitud informacion from planet

                        lon = Hud.getSexagesinal(m_planet.getLongitude(), true);

                        lat = Hud.getSexagesinal(m_planet.getLatitude(), false);

                        // Updating text information

                        textoHud.setText(lonText + " " + lon + " " + latText + " " + lat);

                } else {

                        // Getting longitud and latitud informacion from planet

                        lon = Double.toString(m_planet.getLongitude());

                        lat = Double.toString(m_planet.getLatitude());

                        // Updating text information

                        textoHud.setText(lonText + " " + lon + " " + latText + " " + lat);

                }

                // Repainting view

                if (m_canvas3d != null)

                        m_canvas3d.repaint();

        }

        public String getLat() {

                return lat;

        }

        public void setLat(String lat) {

                this.lat = lat;

        }

        public String getLatText() {

                return latText;

        }

        public void setLatText(String latText) {

                this.latText = latText;

        }

        public String getLon() {

                return lon;

        }

        public void setLon(String lon) {

                this.lon = lon;

        }

        public String getLonText() {

                return lonText;

        }

        public void setLonText(String lonText) {

                this.lonText = lonText;

        }

        /**

         * To transform longitud and latitud to sexagesinal format degress minuts

         * seconds

         * 

         * @param num

         *            number to transform

         * @param lat

         *            is tatitud or not

         * @return sexagesinal format

         */

        public static String getSexagesinal(double num, boolean lat) {

                String result = "";

                String ori = "";

                // Setting up North or South and East or West

                if (num < 0) {

                        num = num * (-1);

                        if (lat) {

                                ori = east;//south;// Messages.getText("South");

                        } else {

                                ori = north;//north;// Messages.getText("North");

                        }

                } else {

                        if (lat) {

                                ori = west;//west;// Messages.getText("West");

                        } else {

                                ori = south;//east;// Messages.getText("East");

                        }

                }

                // transform degrees in sexagesinal format

                int grados = (int) num;

                double resG = num - grados;

                int minutos = (int) (resG * 60);

                double minutosD = (resG * 60);

                double resM = minutosD - minutos;

                int segundos = (int) (resM * 60);

                String cadG = "";

                if (grados < 10)

                        cadG = cadG + "0";

                cadG = cadG + grados;

                String cadM = "";

                if (minutos < 10)

                        cadM = cadM + "0";

                cadM = cadM + minutos;

                String cadS = "";

                if (segundos < 10)

                        cadS = cadS + "0";

                cadS = cadS + segundos;

                // Building result string

                result = cadG + " " + cadM + " " + cadS + " " + ori;

                return result;

        }

        // MOUSE MOTION EVENTS

        public void mouseDragged(MouseEvent e) {

                // Updating Hud information+

                // If not update the hud information when mouses dragged the hud don�t change

                updateHud();

                // System.out.println("***************************************");

                // System.out.println("Longitud : " + m_planet.getLongitude());

                // System.out.println("Latitud : " + m_planet.getLatitude());

                // System.out.println("***************************************");

        }

        public void mouseMoved(MouseEvent e) {

                // TODO Auto-generated method stub

                updateHud();

        }

        public int getProjectionType() {

                return projectionType;

        }

        public void setProjectionType(int projectionType) {

                this.projectionType = projectionType;

        }

}