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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();
}
}
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