258f3ea952
Solves conflict in layout tree "type system" when elements <label> (or <button>) can't have `display: table` because Box can't be Layout::Label (or Layout::ButtonBox) and Layout::TableBox at the same time.
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Forward.h>
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#include <LibWeb/Layout/FormattingContext.h>
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#include <LibWeb/Layout/TableWrapper.h>
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namespace Web::Layout {
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class TableFormattingContext final : public FormattingContext {
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public:
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explicit TableFormattingContext(LayoutState&, Box const&, FormattingContext* parent);
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~TableFormattingContext();
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virtual void run(Box const&, LayoutMode, AvailableSpace const&) override;
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virtual CSSPixels automatic_content_width() const override;
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virtual CSSPixels automatic_content_height() const override;
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Box const& table_box() const { return context_box(); }
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TableWrapper const& table_wrapper() const
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{
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return verify_cast<TableWrapper>(*table_box().containing_block());
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}
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private:
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void calculate_row_column_grid(Box const&);
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void compute_table_measures();
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void compute_table_width();
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void distribute_width_to_columns();
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void determine_intrisic_size_of_table_container(AvailableSpace const& available_space);
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void compute_table_height(LayoutMode layout_mode);
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void distribute_height_to_rows();
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void position_row_boxes(CSSPixels&);
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void position_cell_boxes();
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CSSPixels m_table_height { 0 };
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CSSPixels m_automatic_content_height { 0 };
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Optional<AvailableSpace> m_available_space;
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enum class ColumnType {
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Percent,
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Pixel,
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Auto
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};
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struct Column {
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ColumnType type { ColumnType::Auto };
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CSSPixels left_offset { 0 };
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CSSPixels min_width { 0 };
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CSSPixels max_width { 0 };
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CSSPixels used_width { 0 };
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double percentage_width { 0 };
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};
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struct Row {
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JS::NonnullGCPtr<Box> box;
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CSSPixels base_height { 0 };
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CSSPixels reference_height { 0 };
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CSSPixels final_height { 0 };
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CSSPixels baseline { 0 };
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};
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struct Cell {
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JS::NonnullGCPtr<Box> box;
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size_t column_index;
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size_t row_index;
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size_t column_span;
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size_t row_span;
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CSSPixels baseline { 0 };
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CSSPixels min_width { 0 };
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CSSPixels max_width { 0 };
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};
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CSSPixels compute_row_content_height(Cell const& cell) const;
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Vector<Cell> m_cells;
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Vector<Column> m_columns;
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Vector<Row> m_rows;
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};
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}
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