vertical_list.hpp

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/*
    Copyright (C) 2012 - 2024
    by Mark de Wever <koraq@xs4all.nl>
    Part of the Battle for Wesnoth Project https://www.wesnoth.org/
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY.
 
    See the COPYING file for more details.
*/
 
/**
 * @file
 * Placement helper for the vertical list.
 */
 
#pragma once
 
#include "gui/core/placer.hpp"
 
#include <vector>
 
namespace gui2
{
 
namespace implementation
{
 
/**
 * The placement class for a vertical list.
 *
 * See @ref placer_base for more information.
 */
class placer_vertical_list : public placer_base
{
public:
    /***** ***** Constructor, destructor, assignment. ***** *****/
 
    explicit placer_vertical_list(const unsigned maximum_columns);
 
 
    /***** ***** Inherited operations. ***** *****/
 
    virtual void initialize();
 
    virtual void add_item(const point& size);
 
    virtual point get_size() const;
 
    virtual point get_origin(const unsigned index) const;
 
 
    /***** ***** Members. ***** *****/
 
private:
    /**
     * The maximum number of columns to use.
     *
     * This value is determined by the @p parallel_items parameter of
     * @ref placer_base::build).
     */
    unsigned maximum_columns_;
 
    /**
     * Holds the row sizes
     *
     * The pair contains the following values:
     * * first                    The origin of a row.
     * * second                   The height of a row.
     */
    std::vector<std::pair<int, int>> rows_;
 
    /** Holds the widths of the columns. */
    std::vector<int> columns_;
 
    /** The row to add an item to. */
    unsigned row_;
 
    /** The column to add an item to. */
    unsigned column_;
};
 
} // namespace implementation
 
} // namespace gui2