A Geometry class that generates fillable vertices (with or without texture coordinates) directly from a round rect object with uniform radii at every corner. More...
#include <round_rect_geometry.h>
Public Member Functions | |
RoundRectGeometry (const Rect &bounds, const Size &radii) | |
~RoundRectGeometry () override | |
bool | CoversArea (const Matrix &transform, const Rect &rect) const override |
Determines if this geometry, transformed by the given transform , will completely cover all surface area of the given rect . More... | |
bool | IsAxisAlignedRect () const override |
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virtual | ~Geometry () |
virtual GeometryResult::Mode | GetResultMode () const |
virtual bool | CanApplyMaskFilter () const |
virtual Scalar | ComputeAlphaCoverage (const Matrix &transform) const |
Additional Inherited Members | |
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static std::unique_ptr< Geometry > | MakeFillPath (const flutter::DlPath &path, std::optional< Rect > inner_rect=std::nullopt) |
static std::unique_ptr< Geometry > | MakeStrokePath (const flutter::DlPath &path, const StrokeParameters &stroke={}) |
static std::unique_ptr< Geometry > | MakeCover () |
static std::unique_ptr< Geometry > | MakeRect (const Rect &rect) |
static std::unique_ptr< Geometry > | MakeOval (const Rect &rect) |
static std::unique_ptr< Geometry > | MakeLine (const Point &p0, const Point &p1, const StrokeParameters &stroke) |
static std::unique_ptr< Geometry > | MakeCircle (const Point ¢er, Scalar radius) |
static std::unique_ptr< Geometry > | MakeStrokedCircle (const Point ¢er, Scalar radius, Scalar stroke_width) |
static std::unique_ptr< Geometry > | MakeFilledArc (const Rect &oval_bounds, Degrees start, Degrees sweep, bool include_center) |
static std::unique_ptr< Geometry > | MakeStrokedArc (const Rect &oval_bounds, Degrees start, Degrees sweep, const StrokeParameters &stroke) |
static std::unique_ptr< Geometry > | MakeRoundRect (const Rect &rect, const Size &radii) |
static std::unique_ptr< Geometry > | MakeRoundSuperellipse (const Rect &rect, Scalar corner_radius) |
static Scalar | ComputeStrokeAlphaCoverage (const Matrix &entity, Scalar stroke_width) |
Compute an alpha value to simulate lower coverage of fractional pixel strokes. More... | |
static GeometryResult | ComputePositionGeometry (const ContentContext &renderer, const Tessellator::VertexGenerator &generator, const Entity &entity, RenderPass &pass) |
A Geometry class that generates fillable vertices (with or without texture coordinates) directly from a round rect object with uniform radii at every corner.
Generating vertices for a stroked ellipse would require a lot more work since the line width must be applied perpendicular to the distorted ellipse shape.
Definition at line 25 of file round_rect_geometry.h.
Definition at line 9 of file round_rect_geometry.cc.
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overridedefault |
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overridevirtual |
Determines if this geometry, transformed by the given transform
, will completely cover all surface area of the given rect
.
This is a conservative estimate useful for certain optimizations.
true
if the transformed geometry is guaranteed to cover the given rect
. May return false
in many undetected cases where the transformed geometry does in fact cover the rect
. Reimplemented from impeller::Geometry.
Definition at line 29 of file round_rect_geometry.cc.
References impeller::TRect< T >::Contains(), impeller::TRect< T >::Expand(), impeller::TRect< T >::GetHeight(), impeller::TRect< T >::GetWidth(), impeller::TSize< T >::height, transform, impeller::TRect< T >::TransformBounds(), and impeller::TSize< T >::width.
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overridevirtual |
Reimplemented from impeller::Geometry.
Definition at line 62 of file round_rect_geometry.cc.