/// <summary>
/// Initializes this entity file object with the content of a file.
/// </summary>
/// <param name="sr">The file to read the definition from.</param>
/// <returns>The number of translation blocks that were loaded.</returns>
internal int Create(StreamReader sr)
{
// If we previously created stuff, get rid of it.
ResetContents();
// While we have not reached the end of file, search for a
// record that contains the "BEGIN" keyword. As we find each
// one, create an EntityBlock object, and ask it to load
// the block.
List <EntityBlock> blocks = new List <EntityBlock>();
string buf;
while ((buf = sr.ReadLine()) != null)
{
// Trim off any leading and trailing whitespace.
string str = buf.Trim();
// Skip blank records.
if (str.Length == 0)
{
continue;
}
// If we have the BEGIN keyword, create an additional
// EntityBlock object and load it.
if (String.Compare(str, "BEGIN", true) == 0)
{
try
{
EntityBlock block = new EntityBlock();
block.Create(sr);
blocks.Add(block);
}
catch { }
}
}
// Return the number of translation blocks that we loaded.
m_Blocks = blocks.ToArray();
return(m_Blocks.Length);
}
/// <summary>
/// Tries to return the name of a derived entity type for a specific line.
/// </summary>
/// <param name="line">The line to process.</param>
/// <param name="layer">The layer of interest (in the same address space as
/// the map that contains the line).</param>
/// <returns>The name of the derived entity type (null if not found).</returns>
internal string GetDerivedType(IDivider line, ILayer layer)
{
// Return if the line does not have an entity type (it SHOULD do)
IEntity ent = line.Line.EntityType;
if (ent == null)
{
return(null);
}
// Get the translation block (if any) that refers to the line's entity type.
string entName = ent.Name;
string lyrName = layer.Name;
EntityBlock block = Array.Find <EntityBlock>(m_Blocks, eb => eb.IsMatch(entName, lyrName));
// Return if the line's entity type is not associated with a translation.
if (block == null)
{
return(null);
}
// Get the polygons on either side of the line (the REAL
// user-perceived polygons, not phantoms).
Polygon leftPol = (line.Left == null ? null : line.Left.RealPolygon);
Polygon rightPol = (line.Right == null ? null : line.Right.RealPolygon);
// Get the entity types for the adjacent polygons (if any).
IEntity leftEnt = (leftPol == null ? null : leftPol.EntityType);
IEntity rightEnt = (rightPol == null ? null : rightPol.EntityType);
if (leftEnt != null || rightEnt != null)
{
string e1 = (leftEnt == null ? String.Empty : leftEnt.Name);
string e2 = (rightEnt == null ? String.Empty : rightEnt.Name);
return(block.GetDerivedType(e1, e2));
}
return(null);
}
/// <summary>
/// Initializes this entity file object with the content of a file.
/// </summary>
/// <param name="sr">The file to read the definition from.</param>
/// <returns>The number of translation blocks that were loaded.</returns>
internal int Create(StreamReader sr)
{
// If we previously created stuff, get rid of it.
ResetContents();
// While we have not reached the end of file, search for a
// record that contains the "BEGIN" keyword. As we find each
// one, create an EntityBlock object, and ask it to load
// the block.
List<EntityBlock> blocks = new List<EntityBlock>();
string buf;
while ((buf=sr.ReadLine())!=null)
{
// Trim off any leading and trailing whitespace.
string str = buf.Trim();
// Skip blank records.
if (str.Length==0)
continue;
// If we have the BEGIN keyword, create an additional
// EntityBlock object and load it.
if (String.Compare(str, "BEGIN", true)==0)
{
try
{
EntityBlock block = new EntityBlock();
block.Create(sr);
blocks.Add(block);
}
catch { }
}
}
// Return the number of translation blocks that we loaded.
m_Blocks = blocks.ToArray();
return m_Blocks.Length;
}
