internal override PathFigureCollection GetTransformedFigureCollection(Transform transform)
{
// Combine the transform argument with the internal transform
Matrix matrix = GetCombinedMatrix(transform);
// Get the figure collection
PathFigureCollection result;
if (matrix.IsIdentity)
{
// There is no need to transform, return the figure collection
result = Figures;
if (result == null)
{
result = new PathFigureCollection();
}
}
else
{
// Return a transformed copy of the figure collection
result = new PathFigureCollection();
PathFigureCollection figures = Figures;
int count = figures != null ? figures.Count : 0;
for (int i = 0; i < count; ++i)
{
PathFigure figure = figures.Internal_GetItem(i);
result.Add(figure.GetTransformedCopy(matrix));
}
}
Debug.Assert(result != null);
return(result);
}
/// <summary>
///
/// </summary>
public void AddGeometry(Geometry geometry)
{
if (geometry == null)
{
throw new System.ArgumentNullException("geometry");
}
if (geometry.IsEmpty())
{
return;
}
PathFigureCollection figureCollection = geometry.GetPathFigureCollection();
Debug.Assert(figureCollection != null);
PathFigureCollection figures = Figures;
if (figures == null)
{
figures = Figures = new PathFigureCollection();
}
for (int i = 0; i < figureCollection.Count; ++i)
{
figures.Add(figureCollection.Internal_GetItem(i));
}
}
/// <summary>
/// GetPathGeometryData - returns a struct which contains this Geometry represented
/// as a path geometry's serialized format.
/// </summary>
internal override PathGeometryData GetPathGeometryData()
{
PathGeometryData data = new PathGeometryData();
data.FillRule = FillRule;
data.Matrix = CompositionResourceManager.TransformToMilMatrix3x2D(Transform);
if (IsObviouslyEmpty())
{
return(Geometry.GetEmptyPathGeometryData());
}
ByteStreamGeometryContext ctx = new ByteStreamGeometryContext();
PathFigureCollection figures = Figures;
int figureCount = figures == null ? 0 : figures.Count;
for (int i = 0; i < figureCount; i++)
{
figures.Internal_GetItem(i).SerializeData(ctx);
}
ctx.Close();
data.SerializedData = ctx.GetData();
return(data);
}
/// <summary>
/// Returns true if this geometry may have curved segments
/// </summary>
public override bool MayHaveCurves()
{
PathFigureCollection figures = Figures;
int count = (figures != null) ? figures.Count : 0;
for (int i = 0; i < count; i++)
{
if (figures.Internal_GetItem(i).MayHaveCurves())
{
return(true);
}
}
return(false);
}
