COperator CreateOperator(OpCodeName nameop)
{
string name = nameop.ToString();
COperator op = OpCodes.OperatorFromName(name);
return(CreateOperator(op));
}
COperator CreateOperator()
{
string name = _lexer.Token;
COperator op = OpCodes.OperatorFromName(name);
return(CreateOperator(op));
}
COperator CreateOperator()
{
string name = lexer.Token;
COperator op = OpCodes.OperatorFromName(name);
if (op.OpCode.OpCodeName == OpCodeName.ID)
{
lexer.ScanInlineImage();
}
#if DEBUG
if (op.OpCode.Operands != -1 && op.OpCode.Operands != operands.Count)
{
if (op.OpCode.OpCodeName != OpCodeName.ID)
{
GetType();
Debug.Assert(false, "Invalid number of operands.");
}
}
#endif
op.Operands.Add(operands);
return(op);
}
/// <summary>
/// Renders the contents of the supplied Stream to the Page at the position specified by the provided Rectangle
/// </summary>
/// <param name="page"></param>
/// <param name="stream"></param>
/// <param name="rect"></param>
protected virtual void RenderContentStream(PdfPage page, PdfStream stream, PdfRectangle rect)
{
if (stream == null || rect.IsEmpty)
{
return;
}
var content = ContentReader.ReadContent(stream.UnfilteredValue);
var matrix = new XMatrix();
matrix.TranslateAppend(rect.X1, rect.Y1);
var matElements = matrix.GetElements();
var matrixOp = OpCodes.OperatorFromName("cm");
foreach (var el in matElements)
{
matrixOp.Operands.Add(new CReal {
Value = el
});
}
content.Insert(0, matrixOp);
// Save and restore Graphics state
content.Insert(0, OpCodes.OperatorFromName("q"));
content.Add(OpCodes.OperatorFromName("Q"));
var appendedContent = page.Contents.AppendContent();
using (var ms = new MemoryStream())
{
var cw = new ContentWriter(ms);
foreach (var obj in content)
{
obj.WriteObject(cw);
}
appendedContent.CreateStream(ms.ToArray());
}
}
