table_painters.cc | Explore in Territory

// Copyright 2020 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/table_painters.h"

#include "third_party/blink/renderer/core/layout/fragmentation_utils.h"
#include "third_party/blink/renderer/core/layout/geometry/writing_mode_converter.h"
#include "third_party/blink/renderer/core/layout/layout_box.h"
#include "third_party/blink/renderer/core/layout/physical_box_fragment.h"
#include "third_party/blink/renderer/core/layout/physical_fragment_link.h"
#include "third_party/blink/renderer/core/layout/table/layout_table.h"
#include "third_party/blink/renderer/core/layout/table/layout_table_cell.h"
#include "third_party/blink/renderer/core/layout/table/layout_table_column.h"
#include "third_party/blink/renderer/core/layout/table/table_borders.h"
#include "third_party/blink/renderer/core/paint/box_background_paint_context.h"
#include "third_party/blink/renderer/core/paint/box_border_painter.h"
#include "third_party/blink/renderer/core/paint/box_decoration_data.h"
#include "third_party/blink/renderer/core/paint/box_fragment_painter.h"
#include "third_party/blink/renderer/core/paint/box_model_object_painter.h"
#include "third_party/blink/renderer/core/paint/box_painter.h"
#include "third_party/blink/renderer/core/paint/paint_auto_dark_mode.h"
#include "third_party/blink/renderer/core/paint/paint_info.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/paint/scoped_paint_state.h"
#include "third_party/blink/renderer/core/paint/theme_painter.h"
#include "third_party/blink/renderer/platform/graphics/graphics_context_state_saver.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_recorder.h"

namespace blink {

namespace {

// TableCollapsedEdge represents collapsed border edge for painting.
class TableCollapsedEdge { … };

// Computes a rectangle for start/end joint.
// start/end_wins is set to true if examined edge won.
// Examined edge should shrink/expand its size to fill the joints.
void ComputeEdgeJoints(const TableBorders& collapsed_borders,
                       const TableCollapsedEdge& edge,
                       bool is_over_edge_fragmentation_boundary,
                       bool is_under_edge_fragmentation_boundary,
                       LogicalSize& start_joint,
                       LogicalSize& end_joint,
                       bool& start_wins,
                       bool& end_wins) { … }

// Computes the stitched columns-rect relative to the current fragment.
// The columns-rect is the union of all the sections in the table.
PhysicalRect ComputeColumnsRect(const PhysicalBoxFragment& fragment) { … }

// When painting background in a cell (for the cell or its ancestor table part),
// if any ancestor table part has a layer and the table collapses borders, the
// background is painted after the collapsed borders. We need to clip the
// background to prevent it from covering the collapsed borders around the cell.
// TODO(crbug.com/1181813): Investigate other methods.
class TableCellBackgroundClipper { … };

}  // namespace

bool TablePainter::WillCheckColumnBackgrounds() { … }

void TablePainter::PaintBoxDecorationBackground(
    const PaintInfo& paint_info,
    const PhysicalRect& paint_rect,
    const BoxDecorationData& box_decoration_data) { … }

namespace {

const PhysicalFragment* StartSection(const PhysicalBoxFragment& table) { … }

const PhysicalFragment* EndSection(const PhysicalBoxFragment& table) { … }

bool IsStartRowFragmented(const PhysicalBoxFragment& section) { … }

bool IsEndRowFragmented(const PhysicalBoxFragment& section) { … }

}  // namespace

void TablePainter::PaintCollapsedBorders(const PaintInfo& paint_info,
                                         const PhysicalOffset& paint_offset,
                                         const gfx::Rect& visual_rect) { … }

void TableSectionPainter::PaintBoxDecorationBackground(
    const PaintInfo& paint_info,
    const PhysicalRect& paint_rect,
    const BoxDecorationData& box_decoration_data) { … }

void TableSectionPainter::PaintColumnsBackground(
    const PaintInfo& paint_info,
    const PhysicalOffset& section_paint_offset,
    const PhysicalRect& columns_paint_rect,
    const TableFragmentData::ColumnGeometries& column_geometries) { … }

void TableRowPainter::PaintBoxDecorationBackground(
    const PaintInfo& paint_info,
    const PhysicalRect& paint_rect,
    const BoxDecorationData& box_decoration_data) { … }

void TableRowPainter::PaintTablePartBackgroundIntoCells(
    const PaintInfo& paint_info,
    const LayoutBox& table_part,
    const PhysicalRect& table_part_paint_rect,
    const PhysicalOffset& row_paint_offset) { … }

void TableRowPainter::PaintColumnsBackground(
    const PaintInfo& paint_info,
    const PhysicalOffset& row_paint_offset,
    const PhysicalRect& columns_paint_rect,
    const TableFragmentData::ColumnGeometries& column_geometries) { … }

void TableCellPainter::PaintBoxDecorationBackground(
    const PaintInfo& paint_info,
    const PhysicalRect& paint_rect,
    const BoxDecorationData& box_decoration_data) { … }

// Inspired by TableCellPainter::PaintBackground.
void TableCellPainter::PaintBackgroundForTablePart(
    const PaintInfo& paint_info,
    const LayoutBox& table_part,
    const PhysicalRect& table_part_paint_rect,
    const PhysicalOffset& table_cell_paint_offset) { … }

}  // namespace blink
chromium/third_party/blink/renderer/core/paint/table_painters.cc
