TextStorage.h

// -----------------------------------------------------------------------------
// This file is part of VirtualC64
//
// Copyright (C) Dirk W. Hoffmann. www.dirkwhoffmann.de
// This FILE is dual-licensed. You are free to choose between:
//
//     - The GNU General Public License v3 (or any later version)
//     - The Mozilla Public License v2
//
// SPDX-License-Identifier: GPL-3.0-or-later OR MPL-2.0
// -----------------------------------------------------------------------------
 
#pragma once
 
#include "Macros.h"
#include <sstream>
#include <fstream>
#include <vector>
 
namespace vc64 {
 
class TextStorage {
 
    // Maximum number of stored lines
    static constexpr usize capacity = 512;
 
    // The stored lines
    std::vector<string> storage;
 
public:
 
    // Optional output stream for debugging
    std::ostream *ostream = nullptr;
 
 
    //
    // Reading
    //
 
public:
 
    // Returns the number of stored lines
    isize size() const { return (isize)storage.size(); }
 
    // Returns a single line
    string operator [] (isize i) const;
    string& operator [] (isize i);
 
    // Returns the whole storage contents
    void text(string &all);
 
 
    //
    // Writing
    //
 
public:
 
    // Initializes the storage with a single empty line
    void clear();
 
private:
 
    // Appends a new line
    void append(const string &line);
 
public:
 
    // Appends a single character or a string
    TextStorage &operator<<(char c);
    TextStorage &operator<<(const string &s);
    TextStorage &operator<<(std::stringstream &ss);
};
 
}