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/*
* Copyright (c) 2022, Martin Falisse <mfalisse@outlook.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Layout/BlockFormattingContext.h>
#include <LibWeb/Layout/Box.h>
#include <LibWeb/Layout/FormattingContext.h>
namespace Web::Layout {
class GridFormattingContext final : public BlockFormattingContext {
public:
explicit GridFormattingContext(LayoutState&, BlockContainer const&, FormattingContext* parent);
~GridFormattingContext();
virtual void run(Box const&, LayoutMode, AvailableSpace const& available_space) override;
virtual float automatic_content_height() const override;
private:
float m_automatic_content_height { 0 };
bool is_auto_positioned_row(CSS::GridTrackPlacement const&, CSS::GridTrackPlacement const&) const;
bool is_auto_positioned_column(CSS::GridTrackPlacement const&, CSS::GridTrackPlacement const&) const;
bool is_auto_positioned_track(CSS::GridTrackPlacement const&, CSS::GridTrackPlacement const&) const;
struct GridTrackSizeConstraints {
CSS::GridTrackSize min_track_sizing_function;
CSS::GridTrackSize max_track_sizing_function;
float base_size { 0 };
float growth_limit { 0 };
float space_to_distribute { 0 };
float planned_increase { 0 };
};
Vector<GridTrackSizeConstraints> m_grid_rows;
Vector<GridTrackSizeConstraints> m_grid_columns;
float get_free_space_x(Box const&);
float get_free_space_y(Box const&);
};
class OccupationGrid {
public:
OccupationGrid(int column_count, int row_count);
void maybe_add_column(int needed_number_of_columns);
void maybe_add_row(int needed_number_of_rows);
void set_occupied(int column_start, int column_end, int row_start, int row_end);
void set_occupied(int column_index, int row_index);
int column_count() { return static_cast<int>(m_occupation_grid[0].size()); }
int row_count() { return static_cast<int>(m_occupation_grid.size()); }
bool is_occupied(int column_index, int row_index);
private:
Vector<Vector<bool>> m_occupation_grid;
};
}
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