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

   1 /*
   2  * Copyright © 2010 Anthony Towns <aj@erisian.com.au>
   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_2;
  19
  20 import java.awt.*;
  21 import java.awt.image.*;
  22 import javax.swing.*;
  23 import javax.imageio.*;
  24 import java.awt.geom.*;
  25 import java.io.*;
  26 import java.util.*;
  27 import java.awt.RenderingHints.*;
  28 import org.altusmetrum.altoslib_4.*;
  29
  30 class AltosPoint {
  31         Point2D.Double  pt;
  32         int             state;
  33
  34         AltosPoint(Point2D.Double pt, int state) {
  35                 this.pt = pt;
  36                 this.state = state;
  37         }
  38 }
  39
  40 public class AltosSiteMapTile extends JComponent {
  41         int px_size;
  42         File file;
  43         int status;
  44
  45         Point2D.Double  boost;
  46         Point2D.Double  landed;
  47         Line2D.Double   line;
  48         double          line_course;
  49         double          line_dist;
  50
  51         LinkedList<AltosPoint>  points;
  52
  53         public synchronized void queue_repaint() {
  54                 SwingUtilities.invokeLater(new Runnable() {
  55                                 public void run() {
  56                                         repaint();
  57                                 }
  58                         });
  59         }
  60
  61         public void load_map(File pngFile) {
  62                 file = pngFile;
  63                 queue_repaint();
  64         }
  65
  66         private Font    font = null;
  67
  68         public void set_font(Font font) {
  69                 this.font = font;
  70                 this.status = AltosSiteMapCache.success;
  71                 queue_repaint();
  72         }
  73
  74         public void set_status(int status) {
  75                 file = null;
  76                 this.status = status;
  77                 queue_repaint();
  78         }
  79
  80         public void clearMap() {
  81                 boost = null;
  82                 landed = null;
  83                 points = null;
  84                 file = null;
  85                 status = AltosSiteMapCache.success;
  86                 queue_repaint();
  87                 line = null;
  88         }
  89
  90         static Color stateColors[] = {
  91                 Color.WHITE,  // startup
  92                 Color.WHITE,  // idle
  93                 Color.WHITE,  // pad
  94                 Color.RED,    // boost
  95                 Color.PINK,   // fast
  96                 Color.YELLOW, // coast
  97                 Color.CYAN,   // drogue
  98                 Color.BLUE,   // main
  99                 Color.BLACK   // landed
 100         };
 101
 102         private void draw_circle(Graphics g, Point2D.Double pt) {
 103                 g.drawOval((int)pt.x-5, (int)pt.y-5, 10, 10);
 104                 g.drawOval((int)pt.x-20, (int)pt.y-20, 40, 40);
 105                 g.drawOval((int)pt.x-35, (int)pt.y-35, 70, 70);
 106         }
 107
 108         public void set_boost(Point2D.Double boost) {
 109                 this.boost = boost;
 110                 queue_repaint();
 111         }
 112
 113         public void set_line(Line2D.Double line, double distance) {
 114                 this.line = line;
 115                 line_dist = distance;
 116                 queue_repaint();
 117         }
 118
 119         private String line_dist() {
 120                 String  format;
 121                 double  distance = line_dist;
 122
 123                 if (AltosConvert.imperial_units) {
 124                         distance = AltosConvert.meters_to_feet(distance);
 125                         if (distance < 10000) {
 126                                 format = "%4.0fft";
 127                         } else {
 128                                 distance /= 5280;
 129                                 if (distance < 10)
 130                                         format = "%5.3fmi";
 131                                 else if (distance < 100)
 132                                         format = "%5.2fmi";
 133                                 else if (distance < 1000)
 134                                         format = "%5.1fmi";
 135                                 else
 136                                         format = "%5.0fmi";
 137                         }
 138                 } else {
 139                         if (distance < 10000) {
 140                                 format = "%4.0fm";
 141                         } else {
 142                                 distance /= 1000;
 143                                 if (distance < 100)
 144                                         format = "%5.2fkm";
 145                                 else if (distance < 1000)
 146                                         format = "%5.1fkm";
 147                                 else
 148                                         format = "%5.0fkm";
 149                         }
 150                 }
 151                 return String.format(format, distance);
 152         }
 153
 154         public void paint(Graphics g) {
 155                 Graphics2D      g2d = (Graphics2D) g;
 156                 AltosPoint      prev = null;
 157                 Image           img = null;
 158
 159                 if (file != null)
 160                         img = AltosSiteMapCache.get_image(this, file, px_size, px_size);
 161
 162                 if (img != null) {
 163                         g2d.drawImage(img, 0, 0, null);
 164                 } else {
 165                         g2d.setColor(Color.GRAY);
 166                         g2d.fillRect(0, 0, getWidth(), getHeight());
 167                         String  message = null;
 168                         switch (status) {
 169                         case AltosSiteMapCache.loading:
 170                                 message = "Loading...";
 171                                 break;
 172                         case AltosSiteMapCache.bad_request:
 173                                 message = "Internal error";
 174                                 break;
 175                         case AltosSiteMapCache.failed:
 176                                 message = "Network error, check connection";
 177                                 break;
 178                         case AltosSiteMapCache.forbidden:
 179                                 message = "Too many requests, try later";
 180                                 break;
 181                         }
 182                         if (message != null && font != null) {
 183                                 g2d.setFont(font);
 184                                 g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 185                                 Rectangle2D     bounds;
 186                                 bounds = font.getStringBounds(message, g2d.getFontRenderContext());
 187
 188                                 float x = getWidth() / 2.0f;
 189                                 float y = getHeight() / 2.0f;
 190                                 x = x - (float) bounds.getWidth() / 2.0f;
 191                                 y = y + (float) bounds.getHeight() / 2.0f;
 192                                 g2d.setColor(Color.BLACK);
 193                                 g2d.drawString(message, x, y);
 194                         }
 195                 }
 196
 197                 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
 198                                    RenderingHints.VALUE_ANTIALIAS_ON);
 199                 g2d.setStroke(new BasicStroke(6, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
 200
 201                 if (points != null) {
 202                         for (AltosPoint point : points) {
 203                                 if (prev != null) {
 204                                         if (0 <= point.state && point.state < stateColors.length)
 205                                                 g2d.setColor(stateColors[point.state]);
 206                                         g2d.draw(new Line2D.Double(prev.pt, point.pt));
 207                                 }
 208                                 prev = point;
 209                         }
 210                 }
 211                 if (boost != null) {
 212                         g2d.setColor(Color.RED);
 213                         draw_circle(g2d, boost);
 214                 }
 215                 if (landed != null) {
 216                         g2d.setColor(Color.BLACK);
 217                         draw_circle(g2d, landed);
 218                 }
 219
 220                 if (line != null) {
 221                         g2d.setColor(Color.BLUE);
 222                         g2d.draw(line);
 223
 224                         String  message = line_dist();
 225                         g2d.setFont(font);
 226                         g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 227                         Rectangle2D     bounds;
 228                         bounds = font.getStringBounds(message, g2d.getFontRenderContext());
 229
 230                         float x = (float) line.x1;
 231                         float y = (float) line.y1 + (float) bounds.getHeight() / 2.0f;
 232
 233                         if (line.x1 < line.x2) {
 234                                 x -= (float) bounds.getWidth() + 2.0f;
 235                         } else {
 236                                 x += 2.0f;
 237                         }
 238                         g2d.drawString(message, x, y);
 239                 }
 240         }
 241
 242         public synchronized void show(int state, Point2D.Double last_pt, Point2D.Double pt)
 243         {
 244                 if (points == null)
 245                         points = new LinkedList<AltosPoint>();
 246
 247                 points.add(new AltosPoint(pt, state));
 248
 249                 if (state == AltosLib.ao_flight_boost && boost == null)
 250                         boost = pt;
 251                 if (state == AltosLib.ao_flight_landed && landed == null)
 252                         landed = pt;
 253                 queue_repaint();
 254         }
 255
 256         public AltosSiteMapTile(int in_px_size) {
 257                 px_size = in_px_size;
 258                 setPreferredSize(new Dimension(px_size, px_size));
 259         }
 260 }