tim/prune/gui/map/MapSourceLibrary.java

   1 package tim.prune.gui.map;
   2
   3 import java.util.ArrayList;
   4
   5 import tim.prune.config.Config;
   6
   7 /**
   8  * Class to hold a library for all the map sources
   9  * and provide access to each one
  10  */
  11 public abstract class MapSourceLibrary
  12 {
  13         /** list of map sources */
  14         private static ArrayList<MapSource> _sourceList = null;
  15         /** Number of fixed sources */
  16         private static int _numFixedSources = 0;
  17
  18         // Static block to initialise source list
  19         static
  20         {
  21                 _sourceList = new ArrayList<MapSource>();
  22                 addFixedSources();
  23                 _numFixedSources = _sourceList.size();
  24                 addConfigSources();
  25         }
  26
  27         /** Private constructor to block instantiation */
  28         private MapSourceLibrary() {}
  29
  30
  31         /** @return number of fixed sources which shouldn't be deleted */
  32         public static int getNumFixedSources() {
  33                 return _numFixedSources;
  34         }
  35
  36         /**
  37          * Initialise source list by adding bare minimum
  38          */
  39         private static void addFixedSources()
  40         {
  41                 _sourceList.add(new OsmMapSource("Mapnik", "http://[abc].tile.openstreetmap.org/"));
  42                 _sourceList.add(new OsmMapSource("Cyclemap", "http://[abc].tile.opencyclemap.org/cycle/"));
  43                 _sourceList.add(new OsmMapSource("Reitkarte", "http://topo[234].wanderreitkarte.de/topo/"));
  44                 _sourceList.add(new MffMapSource("Mapsforfree", "http://maps-for-free.com/layer/relief/", "jpg",
  45                         "http://maps-for-free.com/layer/water/", "gif", 11));
  46                 _sourceList.add(new OsmMapSource("Hikebikemap", "http://toolserver.org/tiles/hikebike/",
  47                         "http://toolserver.org/~cmarqu/hill/", 18));
  48                 _sourceList.add(new OsmMapSource("Openseamap", "http://tile.openstreetmap.org/",
  49                         "http://tiles.openseamap.org/seamark/", 18));
  50                 _sourceList.add(new CloudmadeMapSource("Pale Dawn", "998", 18));
  51         }
  52
  53         /**
  54          * Add custom sources from Config to the library
  55          */
  56         private static void addConfigSources()
  57         {
  58                 String configString = Config.getConfigString(Config.KEY_MAPSOURCE_LIST);
  59                 if (configString != null && configString.length() > 10)
  60                 {
  61                         // Loop over sources in string, separated by vertical bars
  62                         int splitPos = configString.indexOf('|');
  63                         while (splitPos > 0)
  64                         {
  65                                 String sourceString = configString.substring(0, splitPos);
  66                                 MapSource source = OsmMapSource.fromConfig(sourceString);
  67                                 if (source == null) {source = CloudmadeMapSource.fromConfig(sourceString);}
  68                                 if (source != null) {
  69                                         _sourceList.add(source);
  70                                 }
  71                                 configString = configString.substring(splitPos+1);
  72                                 splitPos = configString.indexOf('|');
  73                         }
  74                 }
  75         }
  76
  77         /**
  78          * @return current number of sources
  79          */
  80         public static int getNumSources() {
  81                 return _sourceList.size();
  82         }
  83
  84         /**
  85          * Add the given MapSource to the list (at the end)
  86          * @param inSource MapSource object
  87          */
  88         public static void addSource(MapSource inSource) {
  89                 // Check whether source is already there?  Check whether valid?
  90                 _sourceList.add(inSource);
  91         }
  92
  93         /**
  94          * Edit the given MapSource object by replacing with a new one
  95          * @param inOriginal existing MapSource object
  96          * @param inNewSource new MapSource object
  97          */
  98         public static void editSource(MapSource inOriginal, MapSource inNewSource)
  99         {
 100                 // Check whether original source is still there
 101                 int origPos = _sourceList.indexOf(inOriginal);
 102                 if (origPos < 0) {
 103                         addSource(inNewSource);
 104                 }
 105                 else {
 106                         _sourceList.set(origPos, inNewSource);
 107                 }
 108         }
 109
 110         /**
 111          * @param inIndex source index number
 112          * @return corresponding map source object
 113          */
 114         public static MapSource getSource(int inIndex)
 115         {
 116                 // Check whether within range
 117                 if (inIndex < 0 || inIndex >= _sourceList.size()) {return null;}
 118                 return _sourceList.get(inIndex);
 119         }
 120
 121         /**
 122          * Delete the specified source
 123          * @param inIndex index of source to delete
 124          */
 125         public static void deleteSource(int inIndex)
 126         {
 127                 if (inIndex >= _numFixedSources) {
 128                         _sourceList.remove(inIndex);
 129                 }
 130         }
 131
 132         /**
 133          * Check whether the given name already exists in the library (case-insensitive)
 134          * @param inName name to check
 135          * @return true if already exists, false otherwise
 136          */
 137         public static boolean hasSourceName(String inName)
 138         {
 139                 if (inName == null) {return false;}
 140                 String checkName = inName.toLowerCase().trim();
 141                 for (int i=0; i<getNumSources(); i++)
 142                 {
 143                         String name = getSource(i).getName().toLowerCase();
 144                         if (name.equals(checkName)) {return true;}
 145                 }
 146                 return false;
 147         }
 148
 149         /**
 150          * @return String containing all custom-added sources as a |-separated list
 151          */
 152         public static String getConfigString()
 153         {
 154                 StringBuilder builder = new StringBuilder();
 155                 for (int i=getNumFixedSources(); i<getNumSources(); i++) {
 156                         builder.append(getSource(i).getConfigString()).append('|');
 157                 }
 158                 return builder.toString();
 159         }
 160 }