BppImageArchiveSequence.hpp

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/*
 * This file is part of the DUDS project. It is subject to the BSD-style
 * license terms in the LICENSE file found in the top-level directory of this
 * distribution and at https://github.com/jjackowski/duds/blob/master/LICENSE.
 * No part of DUDS, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 *
 * Copyright (C) 2019  Jeff Jackowski
 */
#include <duds/ui/graphics/BppImage.hpp>
#include <boost/noncopyable.hpp>
#include <fstream>

namespace duds { namespace ui { namespace graphics {

class BppImageArchiveSequence : boost::noncopyable {
protected:
    std::istream *is;
    std::pair<std::string, BppImageSptr> deref;
    BppImageArchiveSequence() = default;
public:
    BppImageArchiveSequence(std::istream &str) : is(&str) { }
    class iterator {
        BppImageArchiveSequence *bias;
    public:
        iterator(BppImageArchiveSequence *parent) : bias(parent) { }
        constexpr iterator() : bias(nullptr) { }
        bool operator==(const iterator &i) const {
            return (bias == i.bias);
        }
        bool operator!=(const iterator &i) const {
            return (bias != i.bias);
        }
        iterator &operator++();
        iterator operator++(int) {
            iterator i(*this);
            operator++();
            return i;
        }
        const std::pair<std::string, BppImageSptr> &operator*() const {
            return bias->deref;
        }
        const std::pair<std::string, BppImageSptr> *operator->() const {
            return &(bias->deref);
        }
        const std::string &name() const {
            return bias->deref.first;
        }
        const BppImageSptr &image() const {
            return bias->deref.second;
        }
    };
    friend iterator;
    iterator begin();
    static constexpr iterator end() {
        return iterator();
    }
    void readHeader();
};

class BppImageArchiveFile : public BppImageArchiveSequence {
    std::ifstream inf;
public:
    BppImageArchiveFile(const std::string &path);
};

} } }