Edge[] ParseEdges(ShapeWithStyle s, Rect bounds)
{
List <Edge> edges = new List <Edge>();
uint f0 = 0;
uint f1 = 0;
uint ln = 0;
int curX = -bounds.XMin; // always 0,0
int curY = -bounds.YMin;
FillStyleArray curFills = s.FillStyles;
LineStyleArray curLines = s.LineStyles;
int fillOffset = 0;
int lineOffset = 0;
foreach (IShapeRecord rec in s.ShapeRecords)
{
if (rec is StyleChangedRecord)
{
StyleChangedRecord r = (StyleChangedRecord)rec;
if (r.HasNewStyles) // todo: this also sets 'grouped' elements (and therefore layers)
{
fillOffset = curFills.FillStyles.Count;
lineOffset = curLines.LineStyles.Count;
curFills.FillStyles.AddRange(r.FillStyles.FillStyles);
curLines.LineStyles.AddRange(r.LineStyles.LineStyles);
}
if (r.HasFillStyle0)
{
f0 = r.FillStyle0 == 0 ? 0 : (uint)(r.FillStyle0 + fillOffset);
}
if (r.HasFillStyle1)
{
f1 = r.FillStyle1 == 0 ? 0 : (uint)(r.FillStyle1 + fillOffset);
}
if (r.HasLineStyle)
{
ln = r.LineStyle == 0 ? 0 : (uint)(r.LineStyle + lineOffset);
}
if (r.HasMove)
{
curX = r.MoveDeltaX; // this is based on the initial location, which is now 0,0
curY = r.MoveDeltaY;
}
}
else if (rec is StraightEdgeRecord)
{
StraightEdgeRecord r = (StraightEdgeRecord)rec;
Edge e = new Edge(curX, curY, curX + r.DeltaX, curY + r.DeltaY, (byte)f0, (byte)f1, (byte)ln);
curX += r.DeltaX;
curY += r.DeltaY;
edges.Add(e);
}
else if (rec is CurvedEdgeRecord)
{
CurvedEdgeRecord r = (CurvedEdgeRecord)rec;
int curveX = curX + r.ControlX;
int curveY = curY + r.ControlY;
int destX = curveX + r.AnchorX;
int destY = curveY + r.AnchorY;
// split nodes if curve is outside start/end Y
if (curveY >= curY && curveY <= destY)
{
Edge e = new CurvedEdge(curX, curY, curveX, curveY, destX, destY, (byte)f0, (byte)f1, (byte)ln);
edges.Add(e);
}
else
{
Edge[] split = CurvedEdge.SplitAtPeak(curX, curY, curveX, curveY, destX, destY, (byte)f0, (byte)f1, (byte)ln);
edges.Add(split[0]);
edges.Add(split[1]);
}
curX = destX;
curY = destY;
}
}
edges.Sort(Edge.MaxYComparer);
return(edges.ToArray());
}
