Version 10, May 2010

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

diff --git a/tim/prune/gui/map/MapSourceLibrary.java b/tim/prune/gui/map/MapSourceLibrary.java
new file mode 100644 (file)
index 0000000..df30219
--- /dev/null
+++ b/tim/prune/gui/map/MapSourceLibrary.java
@@ -0,0 +1,141 @@
+package tim.prune.gui.map;
+
+import java.util.ArrayList;
+
+import tim.prune.config.Config;
+
+/**
+ * Class to hold a library for all the map sources
+ * and provide access to each one
+ */
+public abstract class MapSourceLibrary
+{
+       /** list of map sources */
+       private static ArrayList<MapSource> _sourceList = null;
+       /** Number of fixed sources */
+       private static int _numFixedSources = 0;
+
+       // Static block to initialise source list
+       static
+       {
+               _sourceList = new ArrayList<MapSource>();
+               addFixedSources();
+               _numFixedSources = _sourceList.size();
+               addConfigSources();
+       }
+
+       /** Private constructor to block instantiation */
+       private MapSourceLibrary() {}
+
+
+       /** @return number of fixed sources which shouldn't be deleted */
+       public static int getNumFixedSources() {
+               return _numFixedSources;
+       }
+
+       /**
+        * Initialise source list by adding bare minimum
+        */
+       private static void addFixedSources()
+       {
+               _sourceList.add(new OsmMapSource("Mapnik", "http://tile.openstreetmap.org/"));
+               _sourceList.add(new OsmMapSource("Osma", "http://tah.openstreetmap.org/Tiles/tile/"));
+               _sourceList.add(new OsmMapSource("Cyclemap", "http://andy.sandbox.cloudmade.com/tiles/cycle/"));
+               _sourceList.add(new OsmMapSource("Reitkarte", "http://topo.geofabrik.de/hills/",
+                       "http://topo.openstreetmap.de/topo/", 18));
+               _sourceList.add(new MffMapSource("Mapsforfree", "http://maps-for-free.com/layer/relief/", ".jpg",
+                       "http://maps-for-free.com/layer/water/", ".gif", 11));
+               _sourceList.add(new CloudmadeMapSource("Pale Dawn", "998", 18));
+       }
+
+       /**
+        * Add custom sources from Config to the library
+        */
+       private static void addConfigSources()
+       {
+               String configString = Config.getConfigString(Config.KEY_MAPSOURCE_LIST);
+               if (configString != null && configString.length() > 10)
+               {
+                       // Loop over sources in string, separated by vertical bars
+                       int splitPos = configString.indexOf('|');
+                       while (splitPos > 0)
+                       {
+                               String sourceString = configString.substring(0, splitPos);
+                               MapSource source = OsmMapSource.fromConfig(sourceString);
+                               if (source == null) {source = CloudmadeMapSource.fromConfig(sourceString);}
+                               if (source != null) {
+                                       _sourceList.add(source);
+                               }
+                               configString = configString.substring(splitPos+1);
+                               splitPos = configString.indexOf('|');
+                       }
+               }
+       }
+
+       /**
+        * @return current number of sources
+        */
+       public static int getNumSources() {
+               return _sourceList.size();
+       }
+
+       /**
+        * Add the given MapSource to the list (at the end)
+        * @param inSource MapSource object
+        */
+       public static void addSource(MapSource inSource) {
+               // Check whether source is already there?  Check whether valid?
+               _sourceList.add(inSource);
+       }
+
+       /**
+        * @param inIndex source index number
+        * @return corresponding map source object
+        */
+       public static MapSource getSource(int inIndex)
+       {
+               // Check whether within range
+               if (inIndex < 0 || inIndex >= _sourceList.size()) {return null;}
+               return _sourceList.get(inIndex);
+       }
+
+       /**
+        * Delete the specified source
+        * @param inIndex index of source to delete
+        */
+       public static void deleteSource(int inIndex)
+       {
+               if (inIndex >= _numFixedSources) {
+                       _sourceList.remove(inIndex);
+               }
+       }
+
+       /**
+        * Check whether the given name already exists in the library (case-insensitive)
+        * @param inName name to check
+        * @return true if already exists, false otherwise
+        */
+       public static boolean hasSourceName(String inName)
+       {
+               if (inName == null) {return false;}
+               String checkName = inName.toLowerCase().trim();
+               for (int i=0; i<getNumSources(); i++)
+               {
+                       String name = getSource(i).getName().toLowerCase();
+                       if (name.equals(checkName)) {return true;}
+               }
+               return false;
+       }
+
+       /**
+        * @return String containing all custom-added sources as a |-separated list
+        */
+       public static String getConfigString()
+       {
+               StringBuilder builder = new StringBuilder();
+               for (int i=getNumFixedSources(); i<getNumSources(); i++) {
+                       builder.append(getSource(i).getConfigString()).append('|');
+               }
+               return builder.toString();
+       }
+}