| /* |
| * Copyright (C) 2002 Lars Knoll (knoll@kde.org) |
| * (C) 2002 Dirk Mueller (mueller@kde.org) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_TABLE_LAYOUT_ALGORITHM_AUTO_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_TABLE_LAYOUT_ALGORITHM_AUTO_H_ |
| |
| #include "third_party/blink/renderer/core/layout/table_layout_algorithm.h" |
| #include "third_party/blink/renderer/platform/geometry/layout_unit.h" |
| #include "third_party/blink/renderer/platform/geometry/length.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class LayoutTable; |
| class LayoutTableCell; |
| |
| enum CellsToProcess { kAllCells, kNonEmptyCells, kEmptyCells }; |
| |
| enum DistributionMode { kExtraWidth, kInitialWidth, kLeftoverWidth }; |
| |
| enum DistributionDirection { kStartToEnd, kEndToStart }; |
| |
| class TableLayoutAlgorithmAuto final : public TableLayoutAlgorithm { |
| public: |
| TableLayoutAlgorithmAuto(LayoutTable*); |
| ~TableLayoutAlgorithmAuto() override; |
| |
| void ComputeIntrinsicLogicalWidths(LayoutUnit& min_width, |
| LayoutUnit& max_width) override; |
| LayoutUnit ScaledWidthFromPercentColumns() override { |
| return scaled_width_from_percent_columns_; |
| } |
| void ApplyPreferredLogicalWidthQuirks(LayoutUnit& min_width, |
| LayoutUnit& max_width) const override; |
| void UpdateLayout() override; |
| void WillChangeTableLayout() override {} |
| |
| private: |
| void FullRecalc(); |
| void RecalcColumn(unsigned eff_col); |
| |
| int CalcEffectiveLogicalWidth(); |
| void ShrinkColumnWidth(const Length::Type&, int& available); |
| template <typename Total, |
| Length::Type, |
| CellsToProcess, |
| DistributionMode, |
| DistributionDirection> |
| void DistributeWidthToColumns(int& available, Total); |
| |
| void InsertSpanCell(LayoutTableCell*); |
| |
| struct Layout { |
| Layout() |
| : min_logical_width(0), |
| max_logical_width(0), |
| effective_min_logical_width(0), |
| effective_max_logical_width(0), |
| computed_logical_width(0), |
| empty_cells_only(true), |
| column_has_no_cells(true) {} |
| |
| Length logical_width; |
| Length effective_logical_width; |
| int min_logical_width; |
| int max_logical_width; |
| int effective_min_logical_width; |
| int effective_max_logical_width; |
| int computed_logical_width; |
| bool empty_cells_only; |
| bool column_has_no_cells; |
| int ClampedEffectiveMaxLogicalWidth() { |
| return std::max<int>(1, effective_max_logical_width); |
| } |
| }; |
| |
| Vector<Layout, 4> layout_struct_; |
| Vector<LayoutTableCell*, 4> span_cells_; |
| bool has_percent_ : 1; |
| mutable bool effective_logical_width_dirty_ : 1; |
| LayoutUnit scaled_width_from_percent_columns_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // TableLayoutAlgorithmAuto |