/// <inheritdoc />
public override string ToString()
{
var stringBuilder = new StringBuilder();
for (var i = -1; i < Values.Count; i++)
{
if (i >= 0)
{
var value = Values[i];
stringBuilder.AppendLine(value.ToString("N", CultureInfo.InvariantCulture));
}
foreach (var identifier in GetCommandsAt(i + 1))
{
stringBuilder.AppendLine(Type2CharStringParser.GetCommand(identifier).Name);
}
}
return(stringBuilder.ToString());
}
private static Type2Glyph Run(CommandSequence sequence, double defaultWidthX, double nominalWidthX)
{
var context = new Type2BuildCharContext();
var hasRunStackClearingCommand = false;
for (var i = -1; i < sequence.Values.Count; i++)
{
if (i >= 0)
{
var value = sequence.Values[i];
context.Stack.Push(value);
}
foreach (var commandIdentifier in sequence.GetCommandsAt(i + 1))
{
var command = Type2CharStringParser.GetCommand(commandIdentifier);
var isOnlyCommand = sequence.Values.Count + sequence.CommandIdentifiers.Count == 1;
if (!hasRunStackClearingCommand)
{
/*
* The first stack-clearing operator, which must be one of hstem, hstemhm, vstem, vstemhm, cntrmask, hintmask, hmoveto, vmoveto,
* rmoveto, or endchar, takes an additional argument — the width (as described earlier), which may be expressed as zero or one numeric argument.
*/
hasRunStackClearingCommand = true;
switch (command.Name)
{
case "hstem":
case "hstemhm":
case "vstemhm":
case "vstem":
{
var oddArgCount = context.Stack.Length % 2 != 0;
if (oddArgCount)
{
context.Width = nominalWidthX + context.Stack.PopBottom();
}
break;
}
case "hmoveto":
case "vmoveto":
SetWidthFromArgumentsIfPresent(context, nominalWidthX, 1);
break;
case "rmoveto":
SetWidthFromArgumentsIfPresent(context, nominalWidthX, 2);
break;
case "cntrmask":
case "hintmask":
SetWidthFromArgumentsIfPresent(context, nominalWidthX, 0);
break;
case "endchar":
if (isOnlyCommand)
{
context.Width = defaultWidthX;
}
else
{
SetWidthFromArgumentsIfPresent(context, nominalWidthX, 0);
}
break;
default:
hasRunStackClearingCommand = false;
break;
}
}
command.Run(context);
}
}
return(new Type2Glyph(context.Path, context.Width));
}