/[aagtl_public1]/src/com/zoffcc/applications/aagtl/MapDownloader.java
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Contents of /src/com/zoffcc/applications/aagtl/MapDownloader.java

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Revision 4 - (show annotations) (download)
Sat Aug 1 08:47:10 2015 UTC (2 years, 1 month ago) by zoffadmin
File size: 7332 byte(s)
1.0.35
1 /**
2 * aagtl Advanced Geocaching Tool for Android
3 * loosely based on agtl by Daniel Fett <fett@danielfett.de>
4 * Copyright (C) 2010 - 2012 Zoff <aagtl@work.zoff.cc>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21 package com.zoffcc.applications.aagtl;
22
23 import java.io.File;
24 import java.io.FileNotFoundException;
25 import java.util.ArrayList;
26 import java.util.List;
27
28 import android.graphics.Bitmap;
29 import android.graphics.BitmapFactory;
30 import android.os.Handler;
31
32 public class MapDownloader extends Thread
33 {
34 Handler global_handler = null;
35 aagtl main_object;
36
37 public static final int MAP_OSM = 1;
38 public static final int MAP_OCM = 2;
39 public static final int MAP_BIM = 3;
40
41 public static final String TILE_FILENAME_EXT = "png_";
42 public static final String TILE_FILENAME_WEBEXT = "png";
43
44 // default map type
45 int current_maptype = MAP_OCM;
46
47 Boolean running = true;
48
49 // for the download tile list
50 class single_tile
51 {
52 int type;
53 int zoom;
54 int x;
55 int y;
56 }
57
58 List<single_tile> download_list = new ArrayList<single_tile>();
59 public static final int max_download_list_size = 30;
60
61 public MapDownloader(Handler handler, aagtl main)
62 {
63 global_handler = handler;
64 main_object = main;
65 }
66
67 public void clear_stuff()
68 {
69 synchronized (download_list)
70 {
71 download_list.clear();
72 // System.out.println("DL: clear ");
73 main_object.append_status_text(" dl:" + download_list.size());
74 }
75 }
76
77 public void append_tile_to_list(int type, int zoom, int x, int y)
78 {
79 single_tile a = new single_tile();
80 a.type = type;
81 a.zoom = zoom;
82 a.x = x;
83 a.y = y;
84 // System.out.println(String.valueOf(a));
85 synchronized (download_list)
86 {
87 // System.out.println("DL: add oldsize=" + download_list.size());
88 if (download_list.size() > max_download_list_size)
89 {
90 // remove the oldest entry, before adding a new one
91 // System.out.println("DL: rm 0");
92 download_list.remove(0);
93 }
94 download_list.add(a);
95 // System.out.println("DL: add newsize=" + download_list.size());
96 main_object.append_status_text(" dl:" + download_list.size());
97 }
98 }
99
100 public void download_tile(String remote_fn, String local_fn)
101 {
102 // make dirs
103 File dir1 = new File(local_fn);
104 File dir2 = new File(dir1.getParent());
105 dir2.mkdirs();
106
107 ImageManager im = new ImageManager();
108 im.DownloadFromUrl(remote_fn, local_fn);
109
110 // System.out.println("notify_tile_loaded");
111 main_object.rose.notify_tile_loaded_new(local_fn);
112
113 }
114
115 public Boolean is_downloaded(String full_local_filename)
116 {
117 File file1 = new File(full_local_filename);
118 if (file1.length() == 0)
119 {
120 return false;
121 }
122 else
123 {
124 return true;
125 }
126 }
127
128 public Bitmap get_bitmap_from_local_url(String full_local_filename) throws FileNotFoundException
129 {
130 Bitmap temp = null;
131 try
132 {
133 temp = BitmapFactory.decodeFile(full_local_filename);
134 // DPI
135 temp.setDensity(aagtl.Global_want_dpi);
136 }
137 catch (OutOfMemoryError e)
138 {
139 e.printStackTrace();
140 System.gc();
141 try
142 {
143 temp = BitmapFactory.decodeFile(full_local_filename);
144 // DPI
145 temp.setDensity(aagtl.Global_want_dpi);
146 }
147 catch (OutOfMemoryError e2)
148 {
149 e2.printStackTrace();
150 }
151 }
152 return temp;
153 }
154
155 public String get_local_url(int map_type, int zoom, int x, int y)
156 {
157 String ret = null;
158
159 if (map_type == MAP_OSM)
160 {
161 ret = String.format(this.main_object.main_data_dir + "/maps/osm/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
162 }
163 else if (map_type == MAP_OCM)
164 {
165 ret = String.format(this.main_object.main_data_dir + "/maps/ocm/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
166 }
167 else if (map_type == MAP_BIM)
168 {
169 ret = String.format(this.main_object.main_data_dir + "/maps/sat/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
170 }
171
172 return ret;
173 }
174
175 public String[] get_remote_url(int map_type, int zoom, int x, int y)
176 {
177 String[] ret = new String[2];
178 ret[0] = null;
179 ret[1] = null;
180
181 if (map_type == MAP_OSM)
182 {
183 ret[0] = String.format("http://tile.openstreetmap.org/%d/%d/%d." + TILE_FILENAME_WEBEXT, zoom, x, y);
184 ret[1] = String.format(this.main_object.main_data_dir + "/maps/osm/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
185 }
186 else if (map_type == MAP_OCM)
187 {
188 ret[0] = String.format("http://andy.sandbox.cloudmade.com/tiles/cycle/%d/%d/%d." + TILE_FILENAME_WEBEXT, zoom, x, y);
189 ret[1] = String.format(this.main_object.main_data_dir + "/maps/ocm/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
190 }
191 else if (map_type == MAP_BIM)
192 {
193 int srv = 0;
194 String quad_key = "";
195 int mask = 0;
196 for (int i = 1; i < (zoom + 1); i++)
197 {
198 int digit = 0;
199 // int j = zoom - i;
200 if (mask == 0)
201 {
202 mask = 1;
203 }
204 else
205 {
206 mask = mask * 2;
207 }
208
209 if ((mask & x) == mask)
210 {
211 digit = digit + 1;
212 }
213
214 if ((mask & y) == mask)
215 {
216 digit = digit + 2;
217 }
218 quad_key = String.valueOf(digit) + quad_key;
219 }
220
221 srv = (int) (Math.random() * 6);
222
223 ret[0] = String.format("http://ecn.t%d.tiles.virtualearth.net/tiles/h%s.jpeg?g=373&mkt=de-DE", srv, quad_key);
224 ret[1] = String.format(this.main_object.main_data_dir + "/maps/sat/%d/%d/%d." + TILE_FILENAME_EXT, zoom, x, y);
225 }
226
227 return ret;
228 }
229
230 public void request_stop()
231 {
232 running = false;
233 }
234
235 public void run()
236 {
237
238 while (running)
239 {
240
241 // should we stop running?
242 if (Thread.interrupted())
243 {
244 return;
245 }
246
247 // System.out.println("MDL: run");
248
249 String[] sa;
250
251 if (download_list.size() > 0)
252 {
253 single_tile this_tile = null;
254 synchronized (download_list)
255 {
256 // this_tile = download_list.get(0);
257 this_tile = download_list.get(download_list.size() - 1);
258 // System.out.println("DL: get " + (download_list.size() -
259 // 1));
260 }
261 // System.out.println("got:" + String.valueOf(this_tile));
262 sa = this.get_remote_url(this_tile.type, this_tile.zoom, this_tile.x, this_tile.y);
263 this.download_tile(sa[0], sa[1]);
264 synchronized (download_list)
265 {
266 // System.out.println("DL: rm ?" + (download_list.size() -
267 // 1));
268 download_list.remove(this_tile);
269 main_object.append_status_text(" dl:" + download_list.size());
270 }
271 // System.out.println("removed:" + String.valueOf(this_tile));
272 //try
273 //{
274 // Thread.sleep(2);
275 //}
276 //catch (InterruptedException e)
277 //{
278 // break;
279 //}
280 }
281 else
282 {
283 try
284 {
285 Thread.sleep(50);
286 }
287 catch (InterruptedException e)
288 {
289 break;
290 }
291 }
292 }
293
294 }
295
296 }

   
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