public static DatumList CloneList(IEnumerable <Datum> original, Document document)
{
// makes a copy of all of the objects in the list, returning the new list
// contained objects are cloned, but don't appear in the list (they do appear in the ID lookup table)
// the new list will also contain any necessary objects referenced by these (e.g. textures)
// links between objects will be updated if both halves are in the list, or broken if only the linking object (e.g. connector, paint splat)
// is in the list
DatumList newList = new DatumList();
Mapping mapID = new Mapping(); // lookup table from old to new IDs
foreach (Datum data in original.Where(x => x != null)) // will ignore any missing objects in list
{
if (!mapID.ContainsKey(data.ID)) // check is needed because containers will include contents, and original list could include both container and content if selected from page (select all especially)
{
newList.Add(data.Clone(mapID));
}
}
foreach (Datum data in original.Where(x => x != null))
{
// It would have been much easier to just iterate colNew, but we can't because the line below might modify the list
mapID[data.ID].AddRequiredReferencesRecurseToContained(newList.Add, mapID);
}
foreach (Datum shape in newList.Values)
{
shape.UpdateReferencesIDsChanged(mapID, document);
}
return(newList);
}
public override void CopyFrom(Datum other, CopyDepth depth, Mapping mapID)
{
base.CopyFrom(other, depth, mapID);
MaskedImage mask = (MaskedImage)other;
// largely copied fom scriptable
Debug.Assert((Image == null) == (MaskShape == null));
if (depth == CopyDepth.Transform && MaskShape != null) // m_Mask and m_Image will either both be null or neither
{
// first time must copy reference, below
if (MaskShape != mask.MaskShape)
{
MaskShape?.CopyFrom(mask.MaskShape, depth, mapID);
}
if (Image != mask.Image)
{
Image?.CopyFrom(mask.Image, depth, mapID);
}
}
else // if (depth == CopyDepth.Duplicate)
{
if (mapID?.ContainsKey(mask.MaskShape.ID) ?? false)
{
MaskShape = (Lined)mapID[mask.MaskShape.ID];
}
else
{
MaskShape = (Lined)mask.MaskShape.Clone(mapID ?? new Mapping()); // use actual mapID if there is one, otherwise need a real one as Container aspects of Item don't like Ignore
}
MaskShape.Parent = this;
if (mapID?.ContainsKey(mask.Image.ID) ?? false)
{
Image = (ImportedImage)mapID[mask.Image.ID];
}
else
{
Image = (ImportedImage)mask.Image.Clone(mapID ?? new Mapping()); // use actual mapID if there is one, otherwise need a real one as Container aspects of Item don't like Ignore
}
Image.Parent = this;
}
m_Bounds = RectangleF.Empty;
}
public override void CopyFrom(Datum other, CopyDepth depth, Mapping mapID)
{
// this is slightly flaky for Undo still, in that the scriptable must be put into the transaction FIRST
// (otherwise it will refernce differing copies of the contained element)
base.CopyFrom(other, depth, mapID);
Scriptable scriptable = (Scriptable)other;
if (depth > CopyDepth.Transform)
{
CopyPresentationFrom(scriptable, false);
}
//Debug.WriteLine("Scriptable.CopyFrom, depth=" + depth + " ID=" + scriptable.SAWID);
// contained element. Works like ShapeStack containment - Element is tightly bound within this
if (depth == CopyDepth.Transform && Element != null)
{
// first time must copy reference, below
if (Element != scriptable.Element)
{
Element?.CopyFrom(scriptable.Element, depth, mapID);
}
}
else // if (depth == CopyDepth.Duplicate)
{
if (mapID?.ContainsKey(scriptable.Element.ID) ?? false)
{
Element = (Shape)mapID[scriptable.Element.ID];
}
else
{
Element = (Shape)scriptable.Element.Clone(mapID ?? new Mapping()); // use actual mapID if there is one, otherwise need a real one as Container aspects of Item don't like Ignore
}
Element.Parent = this;
}
//else
//{
// Element = scriptable.Element;
//}
////else if (depth == CopyDepth.Duplicate)
////{
//// if (mapID == null)
//// mapID = Mapping.Ignore;
//// Element = (Shape)scriptable.Element.Clone(mapID);
//// Element.Parent = this;
////}
//else
//{
// // undo requires all shapes are copied, because they could later be edited by styling changes
// //Element = Shape.CreateShape(scriptable.Element.ShapeCode); // <- this is inadequate as it doesn't clone contents of the items which leaves some reference problems
// //Element.CopyFrom(scriptable.Element, depth, null);
// Element = (Shape)scriptable.Element.Clone(mapID ?? new Mapping()); // use actual mapID if there is one, otherwise need a real one as Container aspects of Item don't like Ignore
// Element.Parent = this;
//}
// other fields:
if (depth > CopyDepth.Transform)
{
SAWID = scriptable.SAWID;
Popup = scriptable.Popup;
Shown = scriptable.Shown;
AutoRepeat = scriptable.AutoRepeat;
RepeatTimeout = scriptable.RepeatTimeout;
for (int i = 0; i < Scripts.Length; i++)
{
Scripts[i] = scriptable.Scripts[i]?.Clone();
}
}
m_Bounds = RectangleF.Empty; // because content may have moved - especially on Undo
}