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package com.benburwell.planes.gui;
import com.benburwell.planes.data.AircraftStore;
import com.benburwell.planes.data.AircraftStoreListener;
import javax.swing.*;
import java.awt.*;
import java.util.List;
import java.util.ArrayList;
/**
* Created by ben on 11/18/16.
*/
public class AircraftMapComponent implements ViewComponent {
private AircraftStore store;
private AircraftMap mapPanel;
public AircraftMapComponent(AircraftStore store) {
this.store = store;
this.mapPanel = new AircraftMap();
this.mapPanel.setCenter(40.6188942, -75.4947205);
this.store.subscribe(new AircraftStoreListener() {
@Override
public void aircraftStoreChanged() {
List<Drawable> planes = new ArrayList<>();
store.getAircraft().values().forEach(aircraft -> {
String name = !aircraft.getCallsign().isEmpty() ? aircraft.getCallsign() : aircraft.getHexIdent();
double lat = aircraft.getCurrentPosition().getLatitude();
double lon = aircraft.getCurrentPosition().getLongitude();
planes.add(new Plane(name, lat, lon));
});
mapPanel.setPlanes(planes);
mapPanel.validate();
mapPanel.repaint();
}
@Override
public boolean respondTo(String aircraftId) {
return true;
}
});
}
@Override
public JComponent getComponent() {
return this.mapPanel;
}
private class AircraftMap extends JPanel {
private final float FONT_SIZE = 12;
private final int TEXT_PADDING = 5;
private List<Drawable> planes = new ArrayList<>();
private double centerLatitude;
private double centerLongitude;
public AircraftMap() {
super();
this.setBackground(Color.black);
this.setBorder(BorderFactory.createEmptyBorder());
this.setCenter(0, 0);
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
this.planes.forEach(item -> item.drawOn(g, this));
this.drawPositionAndScale(g);
}
public void drawPositionAndScale(Graphics g) {
Font currentFont = g.getFont();
Font newFont = currentFont.deriveFont(FONT_SIZE);
g.setFont(newFont);
g.setColor(Color.gray);
g.drawString(String.format("%08.5f N", this.centerLatitude), TEXT_PADDING, (int)FONT_SIZE + TEXT_PADDING);
g.drawString(String.format("%08.5f E", this.centerLongitude), TEXT_PADDING, (int)FONT_SIZE * 2 + TEXT_PADDING);
}
public void setPlanes(List<Drawable> planes) {
this.planes = planes;
this.invalidate();
}
public void setCenter(double latitude, double longitude) {
this.centerLatitude = latitude;
this.centerLongitude = longitude;
}
public double getCenterLatitude() {
return this.centerLatitude;
}
public double getCenterLongitude() {
return this.centerLongitude;
}
public double getPixelsPerDegree() {
return 600;
}
}
private interface Drawable {
void drawOn(Graphics graphicsContext, AircraftMap map);
}
private class GeoPoint {
private double latitude;
private double longitude;
public GeoPoint(double latitude, double longitude) {
this.latitude = latitude;
this.longitude = longitude;
}
public int getX(AircraftMap map) {
double degreesFromCenter = map.getCenterLongitude() - this.longitude;
double pixelsFromCenter = degreesFromCenter * map.getPixelsPerDegree();
double centerPixels = map.getSize().getWidth() / 2;
int xPosition = (int)(centerPixels - pixelsFromCenter);
System.out.println("Degrees from center: " + degreesFromCenter + "; Pixels from center: " + pixelsFromCenter);
return xPosition;
}
public int getY(AircraftMap map) {
double degreesFromCenter = map.getCenterLatitude() - this.latitude;
double pixelsFromCenter = degreesFromCenter * map.getPixelsPerDegree();
double centerPixels = map.getSize().getHeight() / 2;
int yPosition = (int)(centerPixels + pixelsFromCenter);
return yPosition;
}
}
private class Plane extends GeoPoint implements Drawable {
private String name;
private final int DOT_DIMENSION = 4;
private final int TEXT_OFFSET_X = 10;
private final int TEXT_OFFSET_Y = 15;
public Plane(String name, double latitude, double longitude) {
super(latitude, longitude);
this.name = name;
}
public void drawOn(Graphics g, AircraftMap map) {
g.setColor(new Color(200, 90, 0));
g.fillRect(this.getX(map) - (DOT_DIMENSION / 2), this.getY(map) - (DOT_DIMENSION / 2), DOT_DIMENSION, DOT_DIMENSION);
g.drawString(this.name, this.getX(map) + TEXT_OFFSET_X, this.getY(map) + TEXT_OFFSET_Y);
}
}
}
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