impeller::RoundingRadii Struct Reference

#include <rounding_radii.h>

Public Member Functions
constexpr bool	IsFinite () const
constexpr bool	AreAllCornersEmpty () const
constexpr bool	AreAllCornersSame (Scalar tolerance=kEhCloseEnough) const
RoundingRadii	Scaled (const Rect &bounds) const
	Returns a scaled copy of this object, ensuring that the sum of the corner radii on each side does not exceed the width or height of the given bounds.
constexpr RoundingRadii	operator* (Scalar scale)
constexpr bool	operator== (const RoundingRadii &rr) const

Static Public Member Functions
static constexpr RoundingRadii	MakeRadius (Scalar radius)
static constexpr RoundingRadii	MakeRadii (Size radii)
static constexpr RoundingRadii	MakeNinePatch (Scalar left, Scalar top, Scalar right, Scalar bottom)

Public Attributes
Size	top_left
Size	top_right
Size	bottom_left
Size	bottom_right

Detailed Description

Definition at line 14 of file rounding_radii.h.

Member Function Documentation

AreAllCornersEmpty()

constexpr bool impeller::RoundingRadii::AreAllCornersEmpty ( ) const

inlineconstexpr

Definition at line 47 of file rounding_radii.h.

                                            {
    return top_left.IsEmpty() &&     //
           top_right.IsEmpty() &&    //
           bottom_left.IsEmpty() &&  //
           bottom_right.IsEmpty();
  }

References bottom_left, bottom_right, impeller::TSize< T >::IsEmpty(), top_left, and top_right.

Referenced by impeller::RoundRect::IsRect(), impeller::RoundSuperellipse::IsRect(), Scaled(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), and impeller::testing::TEST().

AreAllCornersSame()

constexpr bool impeller::RoundingRadii::AreAllCornersSame ( Scalar  tolerance = kEhCloseEnough ) const

inlineconstexpr

Definition at line 54 of file rounding_radii.h.

                                                                            {
    return ScalarNearlyEqual(top_left.width, top_right.width, tolerance) &&
           ScalarNearlyEqual(top_left.width, bottom_right.width, tolerance) &&
           ScalarNearlyEqual(top_left.width, bottom_left.width, tolerance) &&
           ScalarNearlyEqual(top_left.height, top_right.height, tolerance) &&
           ScalarNearlyEqual(top_left.height, bottom_right.height, tolerance) &&
           ScalarNearlyEqual(top_left.height, bottom_left.height, tolerance);
  }

References bottom_left, bottom_right, impeller::TSize< T >::height, impeller::ScalarNearlyEqual(), top_left, top_right, and impeller::TSize< T >::width.

Referenced by impeller::DlDispatcherBase::clipPath(), impeller::DlDispatcherBase::clipRoundRect(), impeller::RoundRect::IsOval(), impeller::RoundSuperellipse::IsOval(), impeller::RoundSuperellipseParam::MakeBoundsRadii(), impeller::DlDispatcherBase::SimplifyOrDrawPath(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), and flutter::DisplayListMatrixClipState::TransformedRRectCoversBounds().

IsFinite()

constexpr bool impeller::RoundingRadii::IsFinite ( ) const

inlineconstexpr

Definition at line 40 of file rounding_radii.h.

                                  {
    return top_left.IsFinite() &&     //
           top_right.IsFinite() &&    //
           bottom_left.IsFinite() &&  //
           bottom_right.IsFinite();
  }

References bottom_left, bottom_right, impeller::TSize< T >::IsFinite(), top_left, and top_right.

Referenced by Scaled(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), and impeller::testing::TEST().

MakeNinePatch()

static constexpr RoundingRadii impeller::RoundingRadii::MakeNinePatch ( Scalar  left, Scalar  top, Scalar  right, Scalar  bottom  )

inlinestaticconstexpr

Definition at line 28 of file rounding_radii.h.

                                                              {
    return {
        .top_left = Size{left, top},
        .top_right = Size{right, top},
        .bottom_left = Size(left, bottom),
        .bottom_right = Size(right, bottom),
    };
  }

References top_left.

Referenced by impeller::RoundRect::MakeNinePatch().

MakeRadii()

static constexpr RoundingRadii impeller::RoundingRadii::MakeRadii ( Size  radii )

inlinestaticconstexpr

Definition at line 24 of file rounding_radii.h.

                                                       {
    return {radii, radii, radii, radii};
  }

Referenced by impeller::RoundRect::MakeOval(), impeller::RoundSuperellipse::MakeOval(), impeller::RoundRect::MakeRectXY(), impeller::RoundSuperellipse::MakeRectXY(), impeller::RoundRect::MakeRectXY(), impeller::RoundSuperellipse::MakeRectXY(), impeller::testing::TEST(), and impeller::testing::TEST().

MakeRadius()

static constexpr RoundingRadii impeller::RoundingRadii::MakeRadius ( Scalar  radius )

inlinestaticconstexpr

Definition at line 20 of file rounding_radii.h.

                                                           {
    return {Size(radius), Size(radius), Size(radius), Size(radius)};
  }

Referenced by impeller::RoundRect::MakeRectRadius(), impeller::RoundSuperellipse::MakeRectRadius(), impeller::testing::TEST(), and impeller::testing::TEST().

operator*()

constexpr RoundingRadii impeller::RoundingRadii::operator* ( Scalar  scale )

inlineconstexpr

Definition at line 72 of file rounding_radii.h.

                                                         {
    return {
        .top_left = top_left * scale,
        .top_right = top_right * scale,
        .bottom_left = bottom_left * scale,
        .bottom_right = bottom_right * scale,
    };
  }

References bottom_left, bottom_right, top_left, and top_right.

operator==()

constexpr bool impeller::RoundingRadii::operator== ( const RoundingRadii &  rr ) const

inlineconstexpr

Definition at line 81 of file rounding_radii.h.

                                                                         {
    return top_left == rr.top_left &&        //
           top_right == rr.top_right &&      //
           bottom_left == rr.bottom_left &&  //
           bottom_right == rr.bottom_right;
  }

References bottom_left, bottom_right, top_left, and top_right.

Scaled()

RoundingRadii impeller::RoundingRadii::Scaled

(

const Rect &

bounds

)

const

Returns a scaled copy of this object, ensuring that the sum of the corner radii on each side does not exceed the width or height of the given bounds.

See the Skia scaling implementation for more details.

Definition at line 26 of file rounding_radii.cc.

                                                               {
  Rect bounds = in_bounds.GetPositive();
  if (bounds.IsEmpty() ||  //
      AreAllCornersEmpty() || !IsFinite()) {
    // Normalize empty radii.
    return RoundingRadii();
  }
 
  // Copy the incoming radii so that we can work on normalizing them to the
  // particular rectangle they are paired with without disturbing the caller.
  RoundingRadii radii = *this;
 
  // If any corner is flat or has a negative value, normalize it to zeros
  // We do this first so that the unnecessary non-flat part of that radius
  // does not contribute to the global scaling below.
  NormalizeEmptyToZero(radii.top_left);
  NormalizeEmptyToZero(radii.top_right);
  NormalizeEmptyToZero(radii.bottom_left);
  NormalizeEmptyToZero(radii.bottom_right);
 
  // Now determine a global scale to apply to all of the radii to ensure
  // that none of the adjacent pairs of radius values sum to larger than
  // the corresponding dimension of the rectangle.
  Size size = bounds.GetSize();
  Scalar scale = 1.0f;
  // clang-format off
  AdjustScale(radii.top_left.width,    radii.top_right.width,     size.width,
              scale);
  AdjustScale(radii.bottom_left.width, radii.bottom_right.width,  size.width,
              scale);
  AdjustScale(radii.top_left.height,   radii.bottom_left.height,  size.height,
              scale);
  AdjustScale(radii.top_right.height,  radii.bottom_right.height, size.height,
              scale);
  // clang-format on
  if (scale < 1.0f) {
    radii = radii * scale;
  }
 
  return radii;
}

References impeller::AdjustScale(), AreAllCornersEmpty(), bottom_left, bottom_right, impeller::TRect< T >::GetPositive(), impeller::TRect< T >::GetSize(), impeller::TSize< T >::height, impeller::TRect< T >::IsEmpty(), IsFinite(), impeller::NormalizeEmptyToZero(), top_left, top_right, and impeller::TSize< T >::width.

Referenced by impeller::RoundRect::MakeRectRadii(), and impeller::RoundSuperellipse::MakeRectRadii().

Member Data Documentation

bottom_left

Size impeller::RoundingRadii::bottom_left

Definition at line 17 of file rounding_radii.h.

Referenced by AreAllCornersEmpty(), AreAllCornersSame(), flutter::testing::BM_DrawDRRect(), flutter::testing::BM_DrawRRect(), impeller::RoundRect::Contains(), impeller::FillRoundRectGeometry::CoversArea(), impeller::RoundSuperellipseGeometry::CoversArea(), flutter::PlatformViewAndroidJNIImpl::FlutterViewOnDisplayPlatformView(), impeller::RoundRect::IsFinite(), impeller::RoundSuperellipse::IsFinite(), IsFinite(), impeller::RoundSuperellipseParam::MakeBoundsRadii(), flutter::PlatformViewAndroidJNIImpl::onDisplayPlatformView2(), operator*(), std::operator<<(), operator==(), Scaled(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::interop::ToSkiaType(), and flutter::ToSkRRect().

bottom_right

Size impeller::RoundingRadii::bottom_right

Definition at line 18 of file rounding_radii.h.

Referenced by AreAllCornersEmpty(), AreAllCornersSame(), flutter::testing::BM_DrawDRRect(), flutter::testing::BM_DrawRRect(), impeller::RoundRect::Contains(), impeller::FillRoundRectGeometry::CoversArea(), impeller::RoundSuperellipseGeometry::CoversArea(), flutter::PlatformViewAndroidJNIImpl::FlutterViewOnDisplayPlatformView(), impeller::RoundRect::IsFinite(), impeller::RoundSuperellipse::IsFinite(), IsFinite(), impeller::RoundSuperellipseParam::MakeBoundsRadii(), flutter::PlatformViewAndroidJNIImpl::onDisplayPlatformView2(), operator*(), std::operator<<(), operator==(), Scaled(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::interop::ToSkiaType(), and flutter::ToSkRRect().

top_left

Size impeller::RoundingRadii::top_left

Definition at line 15 of file rounding_radii.h.

Referenced by AreAllCornersEmpty(), AreAllCornersSame(), flutter::testing::BM_DrawDRRect(), flutter::testing::BM_DrawRRect(), impeller::DlDispatcherBase::clipPath(), impeller::DlDispatcherBase::clipRoundRect(), impeller::RoundRect::Contains(), impeller::FillRoundRectGeometry::CoversArea(), impeller::RoundSuperellipseGeometry::CoversArea(), Skwasm::createDlRadii(), flutter::PlatformViewAndroidJNIImpl::FlutterViewOnDisplayPlatformView(), tonic::DartConverter< flutter::RRect >::FromDart(), impeller::RoundRect::IsFinite(), impeller::RoundSuperellipse::IsFinite(), IsFinite(), impeller::RoundRect::IsOval(), impeller::RoundSuperellipse::IsOval(), impeller::RoundSuperellipseParam::MakeBoundsRadii(), MakeNinePatch(), flutter::PlatformViewAndroidJNIImpl::onDisplayPlatformView2(), operator*(), std::operator<<(), operator==(), Scaled(), flutter::testing::TEST(), flutter::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST_P(), impeller::testing::TEST_P(), impeller::testing::TEST_P(), impeller::testing::TEST_P(), impeller::interop::ToImpellerType(), impeller::interop::ToSkiaType(), flutter::ToSkRRect(), and flutter::DisplayListMatrixClipState::TransformedRRectCoversBounds().

top_right

Size impeller::RoundingRadii::top_right

Definition at line 16 of file rounding_radii.h.

Referenced by AreAllCornersEmpty(), AreAllCornersSame(), flutter::testing::BM_DrawDRRect(), flutter::testing::BM_DrawRRect(), impeller::RoundRect::Contains(), impeller::FillRoundRectGeometry::CoversArea(), impeller::RoundSuperellipseGeometry::CoversArea(), flutter::PlatformViewAndroidJNIImpl::FlutterViewOnDisplayPlatformView(), impeller::RoundRect::IsFinite(), impeller::RoundSuperellipse::IsFinite(), IsFinite(), impeller::RoundSuperellipseParam::MakeBoundsRadii(), flutter::PlatformViewAndroidJNIImpl::onDisplayPlatformView2(), operator*(), std::operator<<(), operator==(), Scaled(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::testing::TEST(), impeller::interop::ToSkiaType(), and flutter::ToSkRRect().

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The documentation for this struct was generated from the following files:

• impeller/geometry/rounding_radii.h
• impeller/geometry/rounding_radii.cc