static int EvaluateExpressionHelper(IntPtr statementsAsStringHolder, IntPtr expressionAsStringHolder, int rhinoDocId, IntPtr pResultString)
{
int rc = 0;
#if RHINO_SDK
try
{
string state = StringHolder.GetString(statementsAsStringHolder);
string expr = StringHolder.GetString(expressionAsStringHolder);
PythonScript py = PythonScript.Create();
object eval_result = py.EvaluateExpression(state, expr);
if (null != eval_result)
{
string s = null;
RhinoDoc doc = RhinoDoc.FromId(rhinoDocId);
if (eval_result is double || eval_result is float)
{
if (doc != null)
{
int display_precision = doc.DistanceDisplayPrecision;
string format = "{0:0.";
format = format.PadRight(display_precision + format.Length, '0') + "}";
s = string.Format(format, eval_result);
}
else
s = eval_result.ToString();
}
else if (eval_result is string)
{
s = eval_result.ToString();
}
System.Collections.IEnumerable enumerable = eval_result as System.Collections.IEnumerable;
if (string.IsNullOrEmpty(s) && enumerable != null)
{
string format = null;
if (doc != null)
{
int display_precision = doc.DistanceDisplayPrecision;
format = "{0:0.";
format = format.PadRight(display_precision + format.Length, '0') + "}";
}
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (object obj in enumerable)
{
if (sb.Length > 0)
sb.Append(", ");
if ( (obj is double || obj is float) && !string.IsNullOrEmpty(format) )
{
sb.AppendFormat(format, obj);
}
else
{
sb.Append(obj);
}
}
s = sb.ToString();
}
if (string.IsNullOrEmpty(s))
s = eval_result.ToString();
UnsafeNativeMethods.ON_wString_Set(pResultString, s);
}
rc = 1;
}
catch (Exception ex)
{
UnsafeNativeMethods.ON_wString_Set(pResultString, ex.Message);
rc = 0;
}
#endif
return rc;
}
private static void OnContentListCleared(int kind, int docId)
{
if (m_content_list_cleared_event != null)
{
try { m_content_list_cleared_event(null, new ContentListEventArgs((RenderContentKind)kind, RhinoDoc.FromId(docId))); }
catch (Exception ex) { Runtime.HostUtils.ExceptionReport(ex); }
}
}
