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/*
* Copyright (c) 2021, Arne Elster <arne@elster.li>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/StringView.h>
#include <AK/Types.h>
#include <LibCore/File.h>
class HexDocument {
public:
enum class Type {
Memory,
File
};
struct Cell {
u8 value;
bool modified;
};
virtual ~HexDocument() = default;
virtual Cell get(size_t position) = 0;
virtual void set(size_t position, u8 value);
virtual size_t size() const = 0;
virtual Type type() const = 0;
virtual bool is_dirty() const;
virtual void clear_changes() = 0;
protected:
HashMap<size_t, u8> m_changes;
};
class HexDocumentMemory final : public HexDocument {
public:
explicit HexDocumentMemory(ByteBuffer&& buffer);
virtual ~HexDocumentMemory() = default;
Cell get(size_t position) override;
size_t size() const override;
Type type() const override;
void clear_changes() override;
bool write_to_file(NonnullRefPtr<Core::File> file);
private:
ByteBuffer m_buffer;
};
class HexDocumentFile final : public HexDocument {
public:
explicit HexDocumentFile(NonnullRefPtr<Core::File> file);
virtual ~HexDocumentFile() = default;
HexDocumentFile(HexDocumentFile const&) = delete;
void set_file(NonnullRefPtr<Core::File> file);
NonnullRefPtr<Core::File> file() const;
void write_to_file();
bool write_to_file(NonnullRefPtr<Core::File> file);
Cell get(size_t position) override;
size_t size() const override;
Type type() const override;
void clear_changes() override;
private:
NonnullRefPtr<Core::File> m_file;
size_t m_file_size;
Array<u8, 2048> m_buffer;
size_t m_buffer_file_pos;
};
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