/// <summary>
/// Append a value to an existing metadata or create a new tag if that doesn't exist
/// </summary>
/// <param name="layer">The layer object</param>
/// <param name="key">The metadata key</param>
/// <param name="value">The value to append</param>
/// <param name="value">The separator to be used when appending</param>
public static void AppendMetadata(layerObj layer, string key_to_find, string value, string separator)
{
string key = layer.getFirstMetaDataKey();
while (key != null)
{
if (key == key_to_find)
{
layer.setMetaData(key_to_find, layer.getMetaData(key_to_find) + separator + value);
return;
}
key = layer.getNextMetaDataKey(key);
}
layer.setMetaData(key_to_find, value);
}
/// <summary>
/// Append a value to an existing metadata or create a new tag if that doesn't exist
/// </summary>
/// <param name="layer">The layer object</param>
/// <param name="key">The metadata key</param>
/// <param name="value">The value to append</param>
/// <param name="value">The separator to be used when appending</param>
public static void AppendMetadata(layerObj layer, string key_to_find, string value, string separator)
{
string key = layer.getFirstMetaDataKey();
while (key != null)
{
if (key == key_to_find)
{
layer.setMetaData(key_to_find, layer.getMetaData(key_to_find) + separator + value);
return;
}
key = layer.getNextMetaDataKey(key);
}
layer.setMetaData(key_to_find, value);
}
public static void ExpandFontStyles()
{
string symbolSetFileContents = File.ReadAllText(symbolsetFileName);
string fontSetFileContents = File.ReadAllText(fontsetFileName);
StringBuilder newSymbols = new StringBuilder();
StringBuilder newFonts = new StringBuilder();
for (int i = 0; i < map.numlayers; i++)
{
layerObj layer = map.getLayer(i);
if (MapUtils.HasMetadata(layer, "character-count"))
{
string charcount = layer.getMetaData("character-count");
int num;
if (layer.numclasses == 1 && charcount != null && int.TryParse(charcount, out num))
{
classObj classobj = layer.getClass(0);
if (!fontSetFileContents.Contains(classobj.name))
{
throw new Exception("Invalid font reference in mmstyles.map: " + classobj.name + ". The fontset file should contain an entry for this font name.");
}
for (int c = 33; c < 33 + num; c++)
{
string symbolname = classobj.name + "-" + c.ToString();
if (!symbolSetFileContents.Contains(symbolname))
{
symbolObj sym = new symbolObj(symbolname, null);
sym.character = "&#" + c.ToString() + ";";
sym.antialias = mapscript.MS_TRUE;
sym.type = (int)MS_SYMBOL_TYPE.MS_SYMBOL_TRUETYPE;
sym.font = classobj.name;
sym.inmapfile = 0;
map.symbolset.appendSymbol(sym);
newSymbols.Append(String.Format("SYMBOL{0} NAME \"{1}\"{0} TYPE TRUETYPE{0} ANTIALIAS TRUE{0} CHARACTER \"{2}\"{0} FONT \"{3}\"{0}END{0}", Environment.NewLine, symbolname, sym.character, sym.font));
}
if (c > 33)
{
// the first class is already inserted
classObj class2 = classobj.clone();
class2.name = symbolname;
styleObj style2 = class2.getStyle(0);
style2.setSymbolByName(map, symbolname);
layer.insertClass(class2, -1);
}
else
{
styleObj style2 = classobj.getStyle(0);
style2.setSymbolByName(map, symbolname);
}
}
if (!classobj.name.EndsWith("-33"))
{
classobj.name += "-33";
}
}
layer.removeMetaData("character-count");
}
}
if (newSymbols.Length > 0)
{
// writing the new symbols to the symbolset file
int lastpos = symbolSetFileContents.LastIndexOf("END", StringComparison.InvariantCultureIgnoreCase);
symbolSetFileContents = symbolSetFileContents.Substring(0, lastpos) + newSymbols.ToString() + "END";
File.WriteAllText(symbolsetFileName, symbolSetFileContents);
}
if (newFonts.Length > 0)
{
// writing the new fonts to the fontset file
File.WriteAllText(fontsetFileName, fontSetFileContents + newFonts.ToString());
}
}