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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_UTILITY_ARC_CURVE_PATH_UTIL_H_
#define ASH_UTILITY_ARC_CURVE_PATH_UTIL_H_
#include <optional>
#include "ash/ash_export.h"
#include "ui/gfx/geometry/size.h"
class SkPath;
namespace ash::util {
// Defines a corner shape consisting of arcs and lines. More info in README.
struct ASH_EXPORT ArcCurveCorner {
// Indicates a corner location on a bounding rectangle.
enum class CornerLocation {
// Enum values are ordered counterclockwise. Do not reorder.
kTopLeft,
kBottomLeft,
kBottomRight,
kTopRight,
kMin = kTopLeft,
kMax = kTopRight
};
// NOTE: Ensure `size` accommodates both `concave_radius` and `convex_radius`.
ArcCurveCorner(CornerLocation location,
const gfx::Size& size,
float concave_radius,
float convex_radius);
CornerLocation location;
// Parameters of an arc curve. More info in README.
gfx::Size size;
float concave_radius;
float convex_radius;
};
// Returns the path of a bounding rectangle of `size` with all corners
// rounded with `corner_radius`.
// NOTE: Returns an empty SkPath if the given values are invalid.
ASH_EXPORT SkPath GetArcCurveRectPath(const gfx::Size& size,
const size_t corner_radius);
// Returns the path of a bounding rectangle of `size` with the specified
// `arc_curve_corner`. The corners that are not `arc_curve_corner` are
// rounded with `corner_radius` if any.
// NOTE: Returns an empty SkPath if the given values are invalid.
ASH_EXPORT SkPath
GetArcCurveRectPath(const gfx::Size& size,
const ArcCurveCorner& arc_curve_corner,
const std::optional<size_t>& corner_radius);
} // namespace ash::util
#endif // ASH_UTILITY_ARC_CURVE_PATH_UTIL_H_
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