chromium/pdf/draw_utils/page_boundary_intersect.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 "pdf/draw_utils/page_boundary_intersect.h"

#include "base/check.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"

namespace chrome_pdf {

namespace {

// gfx::Rect considers points on its bottom and right border to be not contained
// within the rect. So to make sure CalculatePageBoundaryIntersectPoint()
// returns points within the page, use this constant to move them inwards a bit.
constexpr float kBoundaryEpsilon = …;

}  // namespace

gfx::PointF CalculatePageBoundaryIntersectPoint(
    const gfx::Rect& page_rect,
    const gfx::PointF& inside_point,
    const gfx::PointF& outside_point) { … }

}  // namespace chrome_pdf