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Datei: View.java Sprache: JAVA

Original von: VDM^©

package gui;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.geom.Line2D;
import java.io.IOException;
import java.util.*;
import javax.swing.JPanel;

class View extends JPanel implements Observer {

private static final long serialVersionUID = 1L;
public static final int GRID_SIZE  = 30;
public static final int GRID_BORDER  = 2;

    Model model;

    int resFactor;
    Font font12, font16;

    transient Collection<Bus> buses;
    transient Collection<Waypoint> waypoints;
    transient Collection<Road> roads;
    transient Collection<Passenger> passengers;

    int inflow;
    Object lock;

    View(Model model) throws IOException {

     super();
        this.model = model;
        this.setBackground(Color.WHITE);
        font12 =  new Font("Lucida Sans Typewriter", Font.BOLD, 12);
        font16 = new Font("Lucida Sans Typewriter", Font.BOLD, 16);
        lock = new Object();
        inflow = 0;

        buses = model.getBuses();
        waypoints = model.getWaypoints();
        roads = model.getRoads();
        passengers = model.getPassengers();

  this.setLayout(null);
        this.setBackground(Color.WHITE);
        resFactor = (int)(this.getHeight() / (GRID_SIZE));
    }

    transient Graphics2D g2;
    @Override
    public void paintComponent(Graphics g) {

        super.paintComponent(g);

        g2 = (Graphics2D) g;
        g2.setStroke(new BasicStroke(4));

        //draw road
        double y;
        for (Road r : roads) {

            if(r.isHighspeed())
             g2.setColor(Color.ORANGE);
            else
             g2.setColor(Color.black);

          for(Line2D rp : r.getRoadParts())
          {
           g2.drawLine(l(rp.getX1()), l(rp.getY1()), l(rp.getX2()), l(rp.getY2()));

           //center text on line
           y = rp.getY2() - rp.getY1() == 0.0 ? rp.getY1() : (rp.getY2() - rp.getY1()) / 2 + rp.getY1();
           if(rp.getX2() - rp.getX1() == 0.0 )
            g2.drawString(r.name(), l(rp.getX1()) + 5, l(y) );
           else
            g2.drawString(r.name(), l((rp.getX2() - rp.getX1()) / 2 + rp.getX1()) -7, l(y) - 5);
          }
  }

        //draw waypoints
        for (Waypoint wp : waypoints) {

         if(wp.IsStop())
             g2.setColor(Color.orange);
            else
             g2.setColor(Color.black);

            g2.drawRoundRect(l(wp.X()) -4 , l(wp.Y()) - 4, 8, 8, 10, 10);
            g2.drawString(wp.Name(), l(wp.X()) + 5, l(wp.Y()) - 5);
  }

        //draw passengers waiting
        //these positions fit
        double h = 0, v = 0;

        synchronized (lock) {
         for (Passenger p : passengers) {

       if(p.isAnnoyed())
           g2.setColor(Color.RED);
          else
           g2.setColor(Color.GREEN);

       if(p.isOnBus())
        g2.fillOval(l(21.4), l(2 + v), 10, 10);
       else
        g2.fillOval(l(22.5 + h), l(2 + v), 10, 10);

           //calc grid
           v += 0.5;
           //start new row a 5 vertical
           if(v % 5 == 0){
            h += 0.5;
            v = 0;

            //limit to 5 horizontal rows
            if(h >= 5) break;
           }
   }
        }

        //draw buses
        int bX, bY;
        Point p;

  g2.setFont(font12);
        for (Bus b : buses) {

         g2.setColor(Color.RED);
         p = b.getBusPosition();
         bX = l(p.getX());
         bY = l(p.getY());
            g2.fillRect(bX - 7, bY - 7, 15, 15);
            g2.setColor(Color.black);
            g2.drawString("Pass: " + b.passengerCount(), bX +5,bY -10);
            g2.drawString(Integer.toString(b.lineNr()), bX - 5, bY +5);
  }

        g2.setFont(font16);
        g2.drawString("Inflow: " + inflow, this.getWidth() / 2, this.getHeight() );
    }

    public void update(Observable obs, Object arg) {

  if(arg == null) return;

  //window resize
        if(arg == "limits"){
         resFactor = (int) (this.getWidth() / (GRID_SIZE));
        } else if(arg == "passengerAdded"){
         synchronized (lock) {
          passengers = model.getPassengers();
         }
      repaint();
        } else if(arg == "passengerAnnoyed"){
            repaint();
        } else if(arg == "passengerGotOnBus"){
            repaint();
        } else if(arg == "inflowChanged"){
         inflow = model.getInflow();
      repaint();
        } else if(arg == "move"){
         buses = model.getBuses();
      repaint();
        } else if (arg == "busStopping"){
         repaint();
        }  else if (arg == "busAdded"){
         repaint();
        }  else if (arg == "busPassengerCount"){
         repaint();
        }  else if (arg == "planUpdated"){
            waypoints = model.getWaypoints();
            roads = model.getRoads();
         repaint();
        }
    }

    private int l(double steps)
    {
     return (int) (GRID_BORDER * resFactor + resFactor * Math.abs(steps));
    }
}

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

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