public SvgPathSeg AppendItem(SvgPathSeg newItem)
{
if (_readOnly)
{
throw new DomException(DomExceptionType.NoModificationAllowedErr);
}
_segments.Add(newItem);
SetListAndIndex(newItem, _segments.Count - 1);
return(newItem);
}
private void setListAndIndex(SvgPathSeg newItem, int index)
{
if (newItem != null)
{
newItem.setList(this);
newItem.setIndex(index);
}
else
{
throw new SvgException(SvgExceptionType.SvgWrongTypeErr, "Can only add SvgPathSeg subclasses to ISvgPathSegList");
}
}
public SvgPathSeg InsertItemBefore(SvgPathSeg newItem, int index)
{
if (_readOnly)
{
throw new DomException(DomExceptionType.NoModificationAllowedErr);
}
_segments.Insert(index, newItem);
SetListAndIndex(newItem, index);
ChangeIndexes(index + 1, 1);
return(newItem);
}
private void changeIndexes(int startAt, int diff)
{
int count = _segments.Count;
for (int i = startAt; i < count; i++)
{
SvgPathSeg seg = _segments[i] as SvgPathSeg;
if (seg != null)
{
seg.SetIndexWithDiff(diff);
}
}
}
public SvgPathSeg RemoveItem(int index)
{
if (_readOnly)
{
throw new DomException(DomExceptionType.NoModificationAllowedErr);
}
SvgPathSeg result = GetItem(index);
_segments.RemoveAt(index);
ChangeIndexes(index, -1);
return(result);
}
public ISvgPathSeg ReplaceItem(SvgPathSeg newItem, int index)
{
if (_readOnly)
{
throw new DomException(DomExceptionType.NoModificationAllowedErr);
}
SvgPathSeg replacedItem = this.GetItem(index);
_segments[index] = newItem;
SetListAndIndex(newItem, index);
return(replacedItem);
}
internal SvgPathSeg GetPreviousSegment(SvgPathSeg seg)
{
int index = _segments.IndexOf(seg);
if (index == -1)
{
throw new Exception("Path segment not part of this list");
}
if (index == 0)
{
return(null);
}
return((SvgPathSeg)GetItem(index - 1));
}
internal SvgPathSeg GetNextSegment(SvgPathSeg seg)
{
int index = _segments.IndexOf(seg);
if (index == -1)
{
throw new Exception("Path segment not part of this list");
}
if (index == _segments.Count - 1)
{
return(null);
}
return((SvgPathSeg)this[index + 1]);
}
private void SetListAndIndex(SvgPathSeg newItem, int index)
{
if (newItem == null)
{
throw new SvgException(SvgExceptionType.SvgWrongTypeErr,
"Can only add SvgPathSeg subclasses to ISvgPathSegList");
}
newItem._list = this;
newItem._index = index;
//newItem.SetList(this);
//newItem.SetIndex(index);
}
private SvgPointF GetPrevPoint()
{
SvgPathSeg prevSeg = this.PreviousSeg;
SvgPointF prevPoint;
if (prevSeg == null)
{
prevPoint = new SvgPointF(0, 0);
}
else
{
prevPoint = prevSeg.AbsXY;
}
return(prevPoint);
}
private PointF getPrevPoint()
{
SvgPathSeg prevSeg = PreviousSeg;
PointF prevPoint;
if (prevSeg == null)
{
prevPoint = new PointF(0, 0);
}
else
{
prevPoint = prevSeg.AbsXY;
}
return(prevPoint);
}
public SvgPathSeg Initialize(SvgPathSeg newItem)
{
Clear();
return(AppendItem(newItem));
}
private void setListAndIndex(SvgPathSeg newItem, int index)
{
if(newItem != null)
{
newItem.setList(this);
newItem.setIndex(index);
}
else
{
throw new SvgException(SvgExceptionType.SvgWrongTypeErr, "Can only add SvgPathSeg subclasses to ISvgPathSegList");
}
}
internal SvgPathSeg GetPreviousSegment(SvgPathSeg seg)
{
int index = segments.IndexOf(seg);
if(index == -1)
{
throw new Exception("Path segment not part of this list");
}
else if(index == 0)
{
return null;
}
else
{
return (SvgPathSeg)GetItem(index - 1);
}
}
internal SvgPathSeg GetNextSegment(SvgPathSeg seg)
{
int index = segments.IndexOf(seg);
if(index == -1)
{
throw new Exception("Path segment not part of this list");
}
else if(index == segments.Count-1)
{
return null;
}
else
{
return (SvgPathSeg)this[index + 1];
}
}
public void Add(SvgPathSeg item)
{
this.AppendItem(item);
}
public bool Contains(SvgPathSeg item)
{
return(this._segments.Contains(item));
}
public int IndexOf(SvgPathSeg item)
{
return(this._segments.IndexOf(item));
}
public void Insert(int index, SvgPathSeg item)
{
this.ReplaceItem(item, index);
}
public bool Remove(SvgPathSeg item)
{
return(this._segments.Remove(item));
}
