chromium/chrome/browser/ui/views/dotted_icon.cc

// 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.

#include "chrome/browser/ui/views/dotted_icon.h"

#include "cc/paint/paint_flags.h"
#include "third_party/skia/include/core/SkPath.h"
#include "ui/gfx/animation/tween.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/skia_conversions.h"

namespace {

constexpr float kRingStrokeWidthDp = …;

// Ring Segments
constexpr int kNumSmallSegments = …;
constexpr int kNumSpacingSegments = …;
constexpr int kLargeSegmentSweepAngle = …;

// Split the remaining space in half so that half is allocated for the small
// segment of the ring and the other half is for the spacing between segments
constexpr int kAllocatedSpace = …;
constexpr int kSpacingSweepAngle = …;
constexpr int kSmallSegmentSweepAngle = …;

// Paints arc starting at `start_angle` with a `sweep` in degrees.
// A starting angle of 0 means that the arc starts on the right side of `bounds`
// and continues drawing the arc in a clockwise direction for `sweep` degrees
void PaintArc(gfx::Canvas* canvas,
              const gfx::Rect& bounds,
              const SkScalar start_angle,
              const SkScalar sweep,
              const cc::PaintFlags& flags) { … }

}  // namespace

void PaintRingDottedPath(gfx::Canvas* canvas,
                         const gfx::Rect& ring_bounds,
                         SkColor ring_color,
                         double opacity_ratio) { … }