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                 if (SwingUtilities.isEventDispatchThread())
  55                         repaint();
  56                 else {
  57                         SwingUtilities.invokeLater(new Runnable() {
  58                                         public void run() {
  59                                                 repaint();
  60                                         }
  61                                 });
  62                 }
  63         }
  64
  65         public void load_map(File pngFile) {
  66                 file = pngFile;
  67                 queue_repaint();
  68         }
  69
  70         private Font    font = null;
  71
  72         public void set_font(Font font) {
  73                 this.font = font;
  74                 this.status = AltosSiteMapCache.success;
  75         }
  76
  77         public void set_status(int status) {
  78                 if (status != this.status || file != null) {
  79                         file = null;
  80                         this.status = status;
  81                         queue_repaint();
  82                 }
  83         }
  84
  85         public void clearMap() {
  86                 boost = null;
  87                 landed = null;
  88                 points = null;
  89                 file = null;
  90                 status = AltosSiteMapCache.success;
  91                 line = null;
  92         }
  93
  94         static Color stateColors[] = {
  95                 Color.WHITE,  // startup
  96                 Color.WHITE,  // idle
  97                 Color.WHITE,  // pad
  98                 Color.RED,    // boost
  99                 Color.PINK,   // fast
 100                 Color.YELLOW, // coast
 101                 Color.CYAN,   // drogue
 102                 Color.BLUE,   // main
 103                 Color.BLACK   // landed
 104         };
 105
 106         private void draw_circle(Graphics g, Point2D.Double pt) {
 107                 g.drawOval((int)pt.x-5, (int)pt.y-5, 10, 10);
 108                 g.drawOval((int)pt.x-20, (int)pt.y-20, 40, 40);
 109                 g.drawOval((int)pt.x-35, (int)pt.y-35, 70, 70);
 110         }
 111
 112         public void set_boost(Point2D.Double boost) {
 113                 this.boost = boost;
 114                 queue_repaint();
 115         }
 116
 117         public void set_line(Line2D.Double line, double distance) {
 118                 this.line = line;
 119                 line_dist = distance;
 120                 queue_repaint();
 121         }
 122
 123         private String line_dist() {
 124                 String  format;
 125                 double  distance = line_dist;
 126
 127                 if (AltosConvert.imperial_units) {
 128                         distance = AltosConvert.meters_to_feet(distance);
 129                         if (distance < 10000) {
 130                                 format = "%4.0fft";
 131                         } else {
 132                                 distance /= 5280;
 133                                 if (distance < 10)
 134                                         format = "%5.3fmi";
 135                                 else if (distance < 100)
 136                                         format = "%5.2fmi";
 137                                 else if (distance < 1000)
 138                                         format = "%5.1fmi";
 139                                 else
 140                                         format = "%5.0fmi";
 141                         }
 142                 } else {
 143                         if (distance < 10000) {
 144                                 format = "%4.0fm";
 145                         } else {
 146                                 distance /= 1000;
 147                                 if (distance < 100)
 148                                         format = "%5.2fkm";
 149                                 else if (distance < 1000)
 150                                         format = "%5.1fkm";
 151                                 else
 152                                         format = "%5.0fkm";
 153                         }
 154                 }
 155                 return String.format(format, distance);
 156         }
 157
 158         boolean painting;
 159
 160         public void paint_graphics(Graphics2D g2d, Image image) {
 161                 if (image != null) {
 162                         AltosSiteMap.debug_component(this, "paint_graphics");
 163                         g2d.drawImage(image, 0, 0, null);
 164                 } else {
 165                         AltosSiteMap.debug_component(this, "erase_graphics");
 166                         g2d.setColor(Color.GRAY);
 167                         g2d.fillRect(0, 0, getWidth(), getHeight());
 168                         String  message = null;
 169                         switch (status) {
 170                         case AltosSiteMapCache.loading:
 171                                 message = "Loading...";
 172                                 break;
 173                         case AltosSiteMapCache.bad_request:
 174                                 message = "Internal error";
 175                                 break;
 176                         case AltosSiteMapCache.failed:
 177                                 message = "Network error, check connection";
 178                                 break;
 179                         case AltosSiteMapCache.forbidden:
 180                                 message = "Too many requests, try later";
 181                                 break;
 182                         }
 183                         if (message != null && font != null) {
 184                                 g2d.setFont(font);
 185                                 g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 186                                 Rectangle2D     bounds;
 187                                 bounds = font.getStringBounds(message, g2d.getFontRenderContext());
 188
 189                                 float x = getWidth() / 2.0f;
 190                                 float y = getHeight() / 2.0f;
 191                                 x = x - (float) bounds.getWidth() / 2.0f;
 192                                 y = y + (float) bounds.getHeight() / 2.0f;
 193                                 g2d.setColor(Color.BLACK);
 194                                 g2d.drawString(message, x, y);
 195                         }
 196                 }
 197
 198                 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
 199                                    RenderingHints.VALUE_ANTIALIAS_ON);
 200                 g2d.setStroke(new BasicStroke(6, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
 201
 202                 if (points != null) {
 203                         AltosPoint              prev = null;
 204                         for (AltosPoint point : points) {
 205                                 if (prev != null) {
 206                                         if (0 <= point.state && point.state < stateColors.length)
 207                                                 g2d.setColor(stateColors[point.state]);
 208                                         g2d.draw(new Line2D.Double(prev.pt, point.pt));
 209                                 }
 210                                 prev = point;
 211                         }
 212                 }
 213                 if (boost != null) {
 214                         g2d.setColor(Color.RED);
 215                         draw_circle(g2d, boost);
 216                 }
 217                 if (landed != null) {
 218                         g2d.setColor(Color.BLACK);
 219                         draw_circle(g2d, landed);
 220                 }
 221
 222                 if (line != null) {
 223                         g2d.setColor(Color.BLUE);
 224                         g2d.draw(line);
 225
 226                         String  message = line_dist();
 227                         g2d.setFont(font);
 228                         g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 229                         Rectangle2D     bounds;
 230                         bounds = font.getStringBounds(message, g2d.getFontRenderContext());
 231
 232                         float x = (float) line.x1;
 233                         float y = (float) line.y1 + (float) bounds.getHeight() / 2.0f;
 234
 235                         if (line.x1 < line.x2) {
 236                                 x -= (float) bounds.getWidth() + 2.0f;
 237                         } else {
 238                                 x += 2.0f;
 239                         }
 240                         g2d.drawString(message, x, y);
 241                 }
 242                 painting = false;
 243         }
 244
 245         public void paint(Graphics g) {
 246                 Graphics2D              g2d = (Graphics2D) g;
 247                 Image                   image = null;
 248                 boolean                 queued = false;
 249
 250                 if (painting) {
 251                         AltosSiteMap.debug_component(this, "already painting");
 252                         return;
 253                 }
 254                 AltosSiteMap.debug_component(this, "paint");
 255
 256                 if (file != null) {
 257                         AltosSiteMapImage       aimage;
 258
 259                         aimage = AltosSiteMapCache.get_image(this, file, px_size, px_size);
 260                         if (aimage != null) {
 261                                 if (aimage.validate())
 262                                         image = aimage.image;
 263                                 else
 264                                         queued = true;
 265                         }
 266                 }
 267                 if (!queued)
 268                         paint_graphics(g2d, image);
 269                 painting = queued;
 270         }
 271
 272         public void show(int state, Point2D.Double last_pt, Point2D.Double pt)
 273         {
 274                 if (points == null)
 275                         points = new LinkedList<AltosPoint>();
 276
 277                 points.add(new AltosPoint(pt, state));
 278
 279                 if (state == AltosLib.ao_flight_boost && boost == null)
 280                         boost = pt;
 281                 if (state == AltosLib.ao_flight_landed && landed == null)
 282                         landed = pt;
 283                 queue_repaint();
 284         }
 285
 286         public AltosSiteMapTile(int in_px_size) {
 287                 px_size = in_px_size;
 288                 setPreferredSize(new Dimension(px_size, px_size));
 289         }
 290 }