Version 10, May 2010

[GpsPrune.git] / tim / prune / gui / map / OsmMapSource.java

diff --git a/tim/prune/gui/map/OsmMapSource.java b/tim/prune/gui/map/OsmMapSource.java
new file mode 100644 (file)
index 0000000..7686307
--- /dev/null
+++ b/tim/prune/gui/map/OsmMapSource.java
@@ -0,0 +1,132 @@
+package tim.prune.gui.map;
+
+import tim.prune.I18nManager;
+
+/**
+ * Class to provide a map source for all OSM-like sources
+ * (eg mapnik, opencyclemap, openpistemap etc).
+ * These can be single-layer or double-layer sources with png tiles
+ */
+public class OsmMapSource extends MapSource
+{
+       /** Name for this source */
+       private String _name = null;
+       /** Base urls */
+       private String[] _baseUrls = null;
+       /** Site names */
+       private String[] _siteNames = null;
+       /** Maximum zoom level */
+       private int _maxZoom = 0;
+
+       /**
+        * Constructor giving single name and url
+        * @param inName source name
+        * @param inUrl base url
+        */
+       public OsmMapSource(String inName, String inUrl)
+       {
+               this(inName, inUrl, null, 18);
+       }
+
+       /**
+        * Constructor giving name, urls and maximum zoom
+        * @param inName source name
+        * @param inUrl1 base layer url
+        * @param inUrl2 upper layer url
+        * @param inMaxZoom maximum zoom level
+        */
+       public OsmMapSource(String inName, String inUrl1, String inUrl2, int inMaxZoom)
+       {
+               _name = inName;
+               if (_name == null || _name.trim().equals("")) {_name = I18nManager.getText("mapsource.unknown");}
+               _baseUrls = new String[2];
+               _baseUrls[0] = fixBaseUrl(inUrl1);
+               _baseUrls[1] = fixBaseUrl(inUrl2);
+               _siteNames = new String[2];
+               _siteNames[0] = fixSiteName(_baseUrls[0]);
+               _siteNames[1] = fixSiteName(_baseUrls[1]);
+               // Swap layers if second layer given without first
+               if (_baseUrls[0] == null && _baseUrls[1] != null)
+               {
+                       _baseUrls[0] = _baseUrls[1];
+                       _siteNames[0] = _siteNames[1];
+                       _baseUrls[1] = _siteNames[1] = null;
+               }
+               _maxZoom = inMaxZoom;
+       }
+
+       /**
+        * Construct a new map source from its config string
+        * @param inConfigString string from Config, separated by semicolons
+        * @return new map source, or null if not parseable
+        */
+       public static OsmMapSource fromConfig(String inConfigString)
+       {
+               OsmMapSource source = null;
+               if (inConfigString.startsWith("o:"))
+               {
+                       String[] items = inConfigString.substring(2).split(";");
+                       try {
+                               if (items.length == 3) {
+                                       source = new OsmMapSource(items[0], items[1], null, Integer.parseInt(items[2]));
+                               }
+                               else if (items.length == 4) {
+                                       source = new OsmMapSource(items[0], items[1], items[2], Integer.parseInt(items[3]));
+                               }
+                       } catch (NumberFormatException nfe) {}
+               }
+               return source;
+       }
+
+       /**
+        * @return name
+        */
+       public String getName() {
+               return _name;
+       }
+
+       /** Number of layers */
+       public int getNumLayers() {
+               return _baseUrls[1] == null?1:2;
+       }
+
+       /** Base url for this source */
+       public String getBaseUrl(int inLayerNum) {
+               return _baseUrls[inLayerNum];
+       }
+
+       /** site name without protocol or www. */
+       public String getSiteName(int inLayerNum) {
+               return _siteNames[inLayerNum];
+       }
+
+       /**
+        * Make the URL to get the specified tile
+        */
+       public String makeURL(int inLayerNum, int inZoom, int inX, int inY)
+       {
+               return _baseUrls[inLayerNum] + inZoom + "/" + inX + "/" + inY + getFileExtension(inLayerNum);
+       }
+
+       /** file extension is always png */
+       public final String getFileExtension(int inLayerNum) {
+               return ".png";
+       }
+
+       /**
+        * @return maximum zoom level
+        */
+       public final int getMaxZoomLevel()
+       {
+               return _maxZoom;
+       }
+
+
+       /**
+        * @return semicolon-separated list of all fields
+        */
+       public String getConfigString()
+       {
+               return "o:" +  getName() + ";" + getSiteStrings() + getMaxZoomLevel();
+       }
+}