示例#1
0
文件： PathCG.cpp 项目： 70599/Waterfox 
Rect
PathCG::GetStrokedBounds(const StrokeOptions &aStrokeOptions,
                         const Matrix &aTransform) const
{
  // 10.7 has CGPathCreateCopyByStrokingPath which we could use
  // instead of this scratch context business
  CGContextRef cg = ScratchContext();

  CGContextSaveGState(cg);

  CGContextBeginPath(cg);
  CGContextAddPath(cg, mPath);

  SetStrokeOptions(cg, aStrokeOptions);

  CGContextReplacePathWithStrokedPath(cg);
  Rect bounds = CGRectToRect(CGContextGetPathBoundingBox(cg));

  CGContextRestoreGState(cg);

  if (!bounds.IsFinite()) {
    return Rect();
  }

  return aTransform.TransformBounds(bounds);
}
示例#2
0
Rect
PathD2D::GetBounds(const Matrix &aTransform) const
{
  D2D1_RECT_F d2dBounds;

  HRESULT hr = mGeometry->GetBounds(D2DMatrix(aTransform), &d2dBounds);

  Rect bounds = ToRect(d2dBounds);
  if (FAILED(hr) || !bounds.IsFinite()) {
    gfxWarning() << "Failed to get stroked bounds for path. Code: " << hexa(hr);
    return Rect();
  }

  return bounds;
}
示例#3
0
Rect
PathD2D::GetStrokedBounds(const StrokeOptions &aStrokeOptions,
                          const Matrix &aTransform) const
{
  D2D1_RECT_F d2dBounds;

  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
  HRESULT hr =
    mGeometry->GetWidenedBounds(aStrokeOptions.mLineWidth, strokeStyle,
                                D2DMatrix(aTransform), &d2dBounds);

  Rect bounds = ToRect(d2dBounds);
  if (FAILED(hr) || !bounds.IsFinite()) {
    gfxWarning() << "Failed to get stroked bounds for path. Code: " << hexa(hr);
    return Rect();
  }

  return bounds;
}