/// <summary>
/// Parses the Path-String
/// </summary>
/// <param name="path">the Path-String</param>
private void Parse(string path)
{
PathCommandTokenizer tok = new PathCommandTokenizer(path);
PathCommand.PathCommandType cmd = PathCommand.PathCommandType.Nothing;
PathCommandToken[] tmp;
PathCommandToken t;
while ((t = tok.GetNextToken()) != null)
{
switch (t.Type)
{
case PathCommandSequenceToken.CommandMoveTo:
cmd = PathCommand.PathCommandType.MoveTo;
tmp = new PathCommandToken[] { tok.GetNextToken(), tok.GetNextToken() };
list.Add(new PathCommand(cmd, tmp));
break;
case PathCommandSequenceToken.CommandLineTo:
cmd = PathCommand.PathCommandType.LineTo;
tmp = new PathCommandToken[] { tok.GetNextToken(), tok.GetNextToken() };
list.Add(new PathCommand(cmd, tmp));
break;
case PathCommandSequenceToken.Number:
case PathCommandSequenceToken.Formula:
tmp = new PathCommandToken[] { t, tok.GetNextToken() };
list.Add(new PathCommand(cmd, tmp));
break;
case PathCommandSequenceToken.CommandClose:
cmd = PathCommand.PathCommandType.CloseLine;
list.Add(new PathCommand(cmd));
break;
case PathCommandSequenceToken.CommandEnd:
cmd = PathCommand.PathCommandType.EndLine;
list.Add(new PathCommand(cmd));
break;
}
}
}
/// <summary>
/// Path as a string.
/// </summary>
/// <returns></returns>
public override string ToString()
{
System.Text.StringBuilder ret = new System.Text.StringBuilder();
PathCommand.PathCommandType lastCommand = PathCommand.PathCommandType.Nothing;
for (int i = 0; i < list.Count; i++)
{
int pcount = 0;
switch (this[i].Command)
{
case PathCommand.PathCommandType.Nothing:
break;
case PathCommand.PathCommandType.MoveTo:
if (lastCommand != this[i].Command)
{
ret.Append("m");
}
pcount = 2;
break;
case PathCommand.PathCommandType.LineTo:
if (lastCommand != this[i].Command)
{
ret.Append("l");
}
pcount = 2;
break;
case PathCommand.PathCommandType.CloseLine:
ret.Append("x");
break;
case PathCommand.PathCommandType.EndLine:
ret.Append("e");
break;
}
// only write needed chars
for (int j = 0; j < pcount; j++)
{
switch (this[i].Param[j].Type)
{
case PathCommandSequenceToken.Formula:
ret.Append(this[i].Param[j].ToString());
break;
case PathCommandSequenceToken.Number:
if ((lastCommand == this[i].Command))
{
ret.Append(",");
}
else if (j == 1)
{
ret.Append(",");
}
if ((this[i].Param[j].Value) != 0)
{
ret.Append(this[i].Param[j].ToString());
}
break;
default:
// every other should not appear ;-)
// may throw an exeption here ?!
break;
}
}
lastCommand = this[i].Command;
}
return(ret.ToString());
}