chromium/third_party/blink/renderer/core/paint/nine_piece_image_painter.cc

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/core/paint/nine_piece_image_painter.h"

#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/inspector/inspector_trace_events.h"
#include "third_party/blink/renderer/core/layout/geometry/physical_rect.h"
#include "third_party/blink/renderer/core/paint/nine_piece_image_grid.h"
#include "third_party/blink/renderer/core/paint/paint_auto_dark_mode.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/core/style/nine_piece_image.h"
#include "third_party/blink/renderer/platform/graphics/graphics_context.h"
#include "third_party/blink/renderer/platform/graphics/scoped_image_rendering_settings.h"
#include "ui/gfx/geometry/outsets.h"
#include "ui/gfx/geometry/size.h"

namespace blink {

namespace {

std::optional<float> CalculateSpaceNeeded(const float destination,
                                          const float source) { … }

struct TileParameters { … };

std::optional<TileParameters> ComputeTileParameters(
    ENinePieceImageRule tile_rule,
    float dst_extent,
    float src_extent) { … }

bool ShouldTile(const NinePieceImageGrid::NinePieceDrawInfo& draw_info) { … }

void PaintPieces(GraphicsContext& context,
                 const PhysicalRect& border_image_rect,
                 const ComputedStyle& style,
                 const Document& document,
                 const NinePieceImage& nine_piece_image,
                 Image& image,
                 const gfx::SizeF& unzoomed_image_size,
                 PhysicalBoxSides sides_to_include) { … }

}  // anonymous namespace

bool NinePieceImagePainter::Paint(GraphicsContext& graphics_context,
                                  const ImageResourceObserver& observer,
                                  const Document& document,
                                  Node* node,
                                  const PhysicalRect& rect,
                                  const ComputedStyle& style,
                                  const NinePieceImage& nine_piece_image,
                                  PhysicalBoxSides sides_to_include) { … }

}  // namespace blink