git.gag.com Git - fw/altos/blob - altosuilib/AltosUIMapPath.java

   1 /*
   2  * Copyright © 2014 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.altosuilib_3;
  19
  20 import java.awt.*;
  21 import java.awt.event.*;
  22 import javax.swing.*;
  23 import java.io.*;
  24 import java.lang.Math;
  25 import java.awt.geom.*;
  26 import java.util.*;
  27 import java.util.concurrent.*;
  28 import org.altusmetrum.altoslib_5.*;
  29
  30 class PathPoint {
  31         AltosUILatLon   lat_lon;
  32         int             state;
  33
  34         public PathPoint(AltosUILatLon lat_lon, int state) {
  35                 this.lat_lon = lat_lon;
  36                 this.state = state;
  37         }
  38
  39         public boolean equals(PathPoint other) {
  40                 if (other == null)
  41                         return false;
  42
  43                 return lat_lon.equals(other.lat_lon) && state == other.state;
  44         }
  45 }
  46
  47 public class AltosUIMapPath {
  48
  49         LinkedList<PathPoint>   points = new LinkedList<PathPoint>();
  50         PathPoint               last_point = null;
  51
  52         static public int stroke_width = 6;
  53
  54         public void paint(Graphics2D g, AltosUIMapTransform t) {
  55                 Point2D.Double  prev = null;
  56
  57                 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
  58                                    RenderingHints.VALUE_ANTIALIAS_ON);
  59                 g.setStroke(new BasicStroke(stroke_width, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
  60
  61                 for (PathPoint point : points) {
  62                         Point2D.Double  cur = t.screen(point.lat_lon);
  63                         if (prev != null) {
  64                                 Line2D.Double   line = new Line2D.Double (prev, cur);
  65                                 Rectangle       bounds = line.getBounds();
  66
  67                                 if (g.hitClip(bounds.x, bounds.y, bounds.width, bounds.height)) {
  68                                         if (0 <= point.state && point.state < AltosUIMap.stateColors.length)
  69                                                 g.setColor(AltosUIMap.stateColors[point.state]);
  70                                         else
  71                                                 g.setColor(AltosUIMap.stateColors[AltosLib.ao_flight_invalid]);
  72
  73                                         g.draw(line);
  74                                 }
  75                         }
  76                         prev = cur;
  77                 }
  78         }
  79
  80         public AltosUIMapRectangle add(double lat, double lon, int state) {
  81                 PathPoint               point = new PathPoint(new AltosUILatLon (lat, lon), state);
  82                 AltosUIMapRectangle     rect = null;
  83
  84                 if (!point.equals(last_point)) {
  85                         if (last_point != null)
  86                                 rect = new AltosUIMapRectangle(last_point.lat_lon, point.lat_lon);
  87                         points.add (point);
  88                         last_point = point;
  89                 }
  90                 return rect;
  91         }
  92
  93         public void clear () {
  94                 points = new LinkedList<PathPoint>();
  95         }
  96 }