/// <summary>
/// Gets the value at specified position which indicated by <paramref name="id" />.
/// </summary>
/// <param name="id">A <see cref="T:Dt.CalcEngine.CalcIdentity" /> indicates the identity of a address.</param>
/// <returns>
/// An <see cref="T:System.Object" /> indicates the value.
/// If the <paramref name="id" /> is not recognized, return <see cref="F:Dt.CalcEngine.CalcErrors.Reference" />.
/// </returns>
public virtual object GetValue(CalcIdentity id)
{
if (id is CalcExternalIdentity)
{
CalcExternalIdentity identity = id as CalcExternalIdentity;
ICalcSource source = identity.Source;
if (source != null)
{
CalcLocalIdentity identity3;
CalcLocalIdentity identity2 = identity.ConvertToLocal();
if ((this.ArrayFormulaMode || (this.RowCount > 1)) || (this.ColumnCount > 1))
{
identity3 = new CalcRangeIdentity(this.Row, this.Column, this.RowCount, this.ColumnCount);
}
else
{
identity3 = new CalcCellIdentity(this.Row, this.Column);
}
return(source.GetEvaluatorContext(identity3).GetValue(identity2));
}
}
else if ((this.Source != null) && (id is CalcLocalIdentity))
{
CalcRangeIdentity objA = id as CalcRangeIdentity;
if (object.ReferenceEquals(objA, null))
{
return(this.Source.GetValue(id as CalcLocalIdentity));
}
if (objA._isFullColumn && objA._isFullRow)
{
return(this.Source.GetValue(new CalcCellIdentity(this.Row, this.Column)));
}
if (objA._isFullColumn)
{
return(this.Source.GetValue(new CalcCellIdentity(this.Row, objA._columnIndex)));
}
if (objA._isFullRow)
{
return(this.Source.GetValue(new CalcCellIdentity(objA._rowIndex, this.Column)));
}
if (((objA._rowCount == 1) && (objA._columnIndex <= this.Column)) && (this.Column < (objA._columnIndex + objA._columnCount)))
{
return(this.Source.GetValue(new CalcCellIdentity(objA._rowIndex, this.Column)));
}
if (((objA._columnCount == 1) && (objA._rowIndex <= this.Row)) && (this.Row < (objA._rowIndex + objA._rowCount)))
{
return(this.Source.GetValue(new CalcCellIdentity(this.Row, objA._columnIndex)));
}
if ((objA._rowCount == 1) && (objA._columnCount == 1))
{
return(this.Source.GetValue(new CalcCellIdentity(objA._rowIndex, objA._columnIndex)));
}
return(CalcErrors.Value);
}
return(CalcErrors.Reference);
}
/// <summary>
/// Normalizes the specified node to convert all external reference to internal reference.
/// </summary>
/// <param name="service">The service.</param>
/// <param name="node">The node.</param>
/// <returns>
/// If <paramref name="node" /> is external identity, return a new node which identity is not external, otherwise, return <paramref name="node" />.
/// </returns>
internal static CalcNode Normalize(CalcService service, CalcNode node)
{
if (!object.ReferenceEquals(node, null) && (node.Id is CalcExternalIdentity))
{
CalcExternalIdentity id = node.Id as CalcExternalIdentity;
CalcGraph graph = service.GetCalculationManager(id.Source, null, true).Graph;
CalcLocalIdentity identity2 = id.ConvertToLocal();
node = graph.GetNode(identity2) ?? new CalcNode(id.Source, identity2);
}
return(node);
}
/// <summary>
/// Gets the reference at specified position which indicated by <paramref name="id" />.
/// </summary>
/// <param name="id">A <see cref="T:Dt.CalcEngine.CalcIdentity" /> indicates the identity of a address.</param>
/// <returns>
/// An <see cref="T:System.Object" /> indicates the reference.
/// If the <paramref name="id" /> is not recognized, return <see cref="F:Dt.CalcEngine.CalcErrors.Reference" />.
/// </returns>
public virtual object GetReference(CalcIdentity id)
{
if (id is CalcExternalIdentity)
{
CalcExternalIdentity identity = id as CalcExternalIdentity;
ICalcSource source = identity.Source;
if (source != null)
{
return(source.GetReference(identity.ConvertToLocal()));
}
}
else
{
if (id is CalcSheetRangeIdentity)
{
IMultiSourceProvider provider = this.Source as IMultiSourceProvider;
if (provider == null)
{
return(CalcErrors.Reference);
}
try
{
CalcSheetRangeIdentity identity2 = id as CalcSheetRangeIdentity;
CalcLocalIdentity identity3 = identity2.ConvertToLocal();
List <CalcReference> references = new List <CalcReference>();
foreach (ICalcSource source2 in provider.GetCalcSources(identity2.StartSource, identity2.EndSource))
{
CalcReference item = source2.GetReference(identity3) as CalcReference;
if (item != null)
{
references.Add(item);
}
}
return(new SheetRangeReference(references));
}
catch
{
return(CalcErrors.Reference);
}
}
if ((this.Source != null) && (id is CalcLocalIdentity))
{
return(this.Source.GetReference(id as CalcLocalIdentity));
}
}
return(CalcErrors.Reference);
}
