public virtual PathGeometry GetWidenedPathGeometry(Pen pen, double tolerance, ToleranceType type)
{
ReadPreamble();
if (pen == null)
{
throw new System.ArgumentNullException("pen");
}
if (IsObviouslyEmpty())
{
return new PathGeometry();
}
PathGeometryData pathData = GetPathGeometryData();
if (pathData.IsEmpty())
{
return new PathGeometry();
}
PathGeometry resultGeometry = null;
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
pen.GetBasicPenData(&penData, out dashArray);
fixed (byte *pbPathData = pathData.SerializedData)
{
Debug.Assert(pbPathData != (byte*)0);
FillRule fillRule = FillRule.Nonzero;
PathGeometry.FigureList list = new PathGeometry.FigureList();
// The handle to the pDashArray, if we have one.
// Since the dash array is optional, we may not need to Free it.
GCHandle handle = new GCHandle();
// Pin the pDashArray, if we have one.
if (dashArray != null)
{
handle = GCHandle.Alloc(dashArray, GCHandleType.Pinned);
}
try
{
int hr = UnsafeNativeMethods.MilCoreApi.MilUtility_PathGeometryWiden(
&penData,
(dashArray == null) ? null : (double*)handle.AddrOfPinnedObject(),
&pathData.Matrix,
pathData.FillRule,
pbPathData,
pathData.Size,
tolerance,
type == ToleranceType.Relative,
new PathGeometry.AddFigureToListDelegate(list.AddFigureToList),
out fillRule);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we return an empty geometry.
resultGeometry = new PathGeometry();
}
else
{
HRESULT.Check(hr);
resultGeometry = new PathGeometry(list.Figures, fillRule, null);
}
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
}
return resultGeometry;
}
}
internal static MilRectD GetPathBoundsAsRB(
PathGeometryData pathData,
Pen pen,
Matrix worldMatrix,
double tolerance,
ToleranceType type,
bool skipHollows)
{
// This method can't handle the empty geometry case, as it's impossible for us to
// return Rect.Empty. Callers should do their own check.
Debug.Assert(!pathData.IsEmpty());
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If we have a pen, populate the CMD struct
if (pen != null)
{
pen.GetBasicPenData(&penData, out dashArray);
}
MilMatrix3x2D worldMatrix3X2 = CompositionResourceManager.MatrixToMilMatrix3x2D(ref worldMatrix);
fixed (byte *pbPathData = pathData.SerializedData)
{
MilRectD bounds;
Debug.Assert(pbPathData != (byte*)0);
fixed (double *pDashArray = dashArray)
{
int hr = UnsafeNativeMethods.MilCoreApi.MilUtility_PathGeometryBounds(
(pen == null) ? null : &penData,
pDashArray,
&worldMatrix3X2,
pathData.FillRule,
pbPathData,
pathData.Size,
&pathData.Matrix,
tolerance,
type == ToleranceType.Relative,
skipHollows,
&bounds
);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry has empty bounds
// (NaN will get transformed into Rect.Empty higher up).
bounds = MilRectD.NaN;
}
else
{
HRESULT.Check(hr);
}
}
return bounds;
}
}
}
internal virtual bool ContainsInternal(Pen pen, Point hitPoint, double tolerance, ToleranceType type)
{
if (IsObviouslyEmpty())
{
return false;
}
PathGeometryData pathData = GetPathGeometryData();
if (pathData.IsEmpty())
{
return false;
}
bool contains = false;
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If we have a pen, populate the CMD struct
if (pen != null)
{
pen.GetBasicPenData(&penData, out dashArray);
}
fixed (byte* pbPathData = pathData.SerializedData)
{
Debug.Assert(pbPathData != (byte*)0);
fixed (double * dashArrayFixed = dashArray)
{
int hr = MilCoreApi.MilUtility_PathGeometryHitTest(
&pathData.Matrix,
(pen == null) ? null : &penData,
dashArrayFixed,
pathData.FillRule,
pbPathData,
pathData.Size,
tolerance,
type == ToleranceType.Relative,
&hitPoint,
out contains);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry is never hittable.
contains = false;
}
else
{
HRESULT.Check(hr);
}
}
}
}
return contains;
}
internal unsafe bool ContainsInternal(Pen pen, Point hitPoint, double tolerance, ToleranceType type,
Point *pPoints, uint pointCount, byte *pTypes, uint typeCount)
{
bool contains = false;
MilMatrix3x2D matrix = CompositionResourceManager.TransformToMilMatrix3x2D(Transform);
MIL_PEN_DATA penData;
double[] dashArray = null;
if (pen != null)
{
pen.GetBasicPenData(&penData, out dashArray);
}
fixed (double *dashArrayFixed = dashArray)
{
int hr = MilCoreApi.MilUtility_PolygonHitTest(
&matrix,
(pen == null) ? null : &penData,
dashArrayFixed,
pPoints,
pTypes,
pointCount,
typeCount,
tolerance,
type == ToleranceType.Relative,
&hitPoint,
out contains);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry is never hittable.
contains = false;
}
else
{
HRESULT.Check(hr);
}
}
return contains;
}
internal unsafe static Rect GetBoundsHelper(
Pen pen,
Matrix *pWorldMatrix,
Point* pPoints,
byte *pTypes,
uint pointCount,
uint segmentCount,
Matrix *pGeometryMatrix,
double tolerance,
ToleranceType type,
bool fSkipHollows)
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If the pen contributes to the bounds, populate the CMD struct
bool fPenContributesToBounds = Pen.ContributesToBounds(pen);
if (fPenContributesToBounds)
{
pen.GetBasicPenData(&penData, out dashArray);
}
MilMatrix3x2D geometryMatrix;
if (pGeometryMatrix != null)
{
geometryMatrix = CompositionResourceManager.MatrixToMilMatrix3x2D(ref (*pGeometryMatrix));
}
Debug.Assert(pWorldMatrix != null);
MilMatrix3x2D worldMatrix =
CompositionResourceManager.MatrixToMilMatrix3x2D(ref (*pWorldMatrix));
Rect bounds;
fixed (double *pDashArray = dashArray)
{
int hr = MilCoreApi.MilUtility_PolygonBounds(
&worldMatrix,
(fPenContributesToBounds) ? &penData : null,
(dashArray == null) ? null : pDashArray,
pPoints,
pTypes,
pointCount,
segmentCount,
(pGeometryMatrix == null) ? null : &geometryMatrix,
tolerance,
type == ToleranceType.Relative,
fSkipHollows,
&bounds
);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry has empty bounds.
bounds = Rect.Empty;
}
else
{
HRESULT.Check(hr);
}
}
return bounds;
}
internal virtual bool ContainsInternal(Pen pen, Point hitPoint, double tolerance, ToleranceType type)
{
if (IsObviouslyEmpty())
{
return(false);
}
PathGeometryData pathData = GetPathGeometryData();
if (pathData.IsEmpty())
{
return(false);
}
bool contains = false;
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If we have a pen, populate the CMD struct
if (pen != null)
{
pen.GetBasicPenData(&penData, out dashArray);
}
fixed(byte *pbPathData = pathData.SerializedData)
{
Debug.Assert(pbPathData != (byte *)0);
fixed(double *dashArrayFixed = dashArray)
{
int hr = MilCoreApi.MilUtility_PathGeometryHitTest(
&pathData.Matrix,
(pen == null) ? null : &penData,
dashArrayFixed,
pathData.FillRule,
pbPathData,
pathData.Size,
tolerance,
type == ToleranceType.Relative,
&hitPoint,
out contains);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry is never hittable.
contains = false;
}
else
{
HRESULT.Check(hr);
}
}
}
}
return(contains);
}
internal unsafe static Rect GetBoundsHelper(
Pen pen,
Matrix *pWorldMatrix,
Point *pPoints,
byte *pTypes,
uint pointCount,
uint segmentCount,
Matrix *pGeometryMatrix,
double tolerance,
ToleranceType type,
bool fSkipHollows)
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If the pen contributes to the bounds, populate the CMD struct
bool fPenContributesToBounds = Pen.ContributesToBounds(pen);
if (fPenContributesToBounds)
{
pen.GetBasicPenData(&penData, out dashArray);
}
MilMatrix3x2D geometryMatrix;
if (pGeometryMatrix != null)
{
geometryMatrix = CompositionResourceManager.MatrixToMilMatrix3x2D(ref (*pGeometryMatrix));
}
Debug.Assert(pWorldMatrix != null);
MilMatrix3x2D worldMatrix =
CompositionResourceManager.MatrixToMilMatrix3x2D(ref (*pWorldMatrix));
Rect bounds;
fixed(double *pDashArray = dashArray)
{
int hr = MilCoreApi.MilUtility_PolygonBounds(
&worldMatrix,
(fPenContributesToBounds) ? &penData : null,
(dashArray == null) ? null : pDashArray,
pPoints,
pTypes,
pointCount,
segmentCount,
(pGeometryMatrix == null) ? null : &geometryMatrix,
tolerance,
type == ToleranceType.Relative,
fSkipHollows,
&bounds
);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry has empty bounds.
bounds = Rect.Empty;
}
else
{
HRESULT.Check(hr);
}
}
return(bounds);
}
/// <summary>
/// Create the contour of the stroke defined by given pen when it draws this path
/// </summary>
/// <param name="pen">The pen used for stroking this path</param>
/// <param name="tolerance">The computational error tolerance</param>
/// <param name="type">The way the error tolerance will be interpreted - relative or absolute</param>
/// <returns>Returns the contour as a PathGeometry.</returns>
public virtual PathGeometry GetWidenedPathGeometry(Pen pen, double tolerance, ToleranceType type)
{
ReadPreamble();
if (pen == null)
{
throw new System.ArgumentNullException("pen");
}
if (IsObviouslyEmpty())
{
return(new PathGeometry());
}
PathGeometryData pathData = GetPathGeometryData();
if (pathData.IsEmpty())
{
return(new PathGeometry());
}
PathGeometry resultGeometry = null;
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
pen.GetBasicPenData(&penData, out dashArray);
fixed(byte *pbPathData = pathData.SerializedData)
{
Debug.Assert(pbPathData != (byte *)0);
FillRule fillRule = FillRule.Nonzero;
PathGeometry.FigureList list = new PathGeometry.FigureList();
// The handle to the pDashArray, if we have one.
// Since the dash array is optional, we may not need to Free it.
GCHandle handle = new GCHandle();
// Pin the pDashArray, if we have one.
if (dashArray != null)
{
handle = GCHandle.Alloc(dashArray, GCHandleType.Pinned);
}
try
{
int hr = UnsafeNativeMethods.MilCoreApi.MilUtility_PathGeometryWiden(
&penData,
(dashArray == null) ? null : (double *)handle.AddrOfPinnedObject(),
&pathData.Matrix,
pathData.FillRule,
pbPathData,
pathData.Size,
tolerance,
type == ToleranceType.Relative,
new PathGeometry.AddFigureToListDelegate(list.AddFigureToList),
out fillRule);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we return an empty geometry.
resultGeometry = new PathGeometry();
}
else
{
HRESULT.Check(hr);
resultGeometry = new PathGeometry(list.Figures, fillRule, null);
}
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
}
return(resultGeometry);
}
}
/// <summary>
/// Gets the bounds of this PathGeometry as an axis-aligned bounding box with pen and/or transform
///
/// This function should not be called with a PathGeometryData that's known to be empty, since MilRectD
/// does not offer a standard way of representing this.
/// </summary>
internal static MilRectD GetPathBoundsAsRB(
PathGeometryData pathData,
Pen pen,
Matrix worldMatrix,
double tolerance,
ToleranceType type,
bool skipHollows)
{
// This method can't handle the empty geometry case, as it's impossible for us to
// return Rect.Empty. Callers should do their own check.
Debug.Assert(!pathData.IsEmpty());
unsafe
{
MIL_PEN_DATA penData;
double[] dashArray = null;
// If we have a pen, populate the CMD struct
if (pen != null)
{
pen.GetBasicPenData(&penData, out dashArray);
}
MilMatrix3x2D worldMatrix3X2 = CompositionResourceManager.MatrixToMilMatrix3x2D(ref worldMatrix);
fixed(byte *pbPathData = pathData.SerializedData)
{
MilRectD bounds;
Debug.Assert(pbPathData != (byte *)0);
fixed(double *pDashArray = dashArray)
{
int hr = UnsafeNativeMethods.MilCoreApi.MilUtility_PathGeometryBounds(
(pen == null) ? null : &penData,
pDashArray,
&worldMatrix3X2,
pathData.FillRule,
pbPathData,
pathData.Size,
&pathData.Matrix,
tolerance,
type == ToleranceType.Relative,
skipHollows,
&bounds
);
if (hr == (int)MILErrors.WGXERR_BADNUMBER)
{
// When we encounter NaNs in the renderer, we absorb the error and draw
// nothing. To be consistent, we report that the geometry has empty bounds
// (NaN will get transformed into Rect.Empty higher up).
bounds = MilRectD.NaN;
}
else
{
HRESULT.Check(hr);
}
}
return(bounds);
}
}
}
