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/***************************************************************************
* Copyright (C) 2008-2013 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* 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; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef NCMPCPP_STRBUFFER_H
#define NCMPCPP_STRBUFFER_H
#include <boost/lexical_cast.hpp>
#include <set>
#include "window.h"
namespace NC {//
/// Buffer template class that stores text
/// along with its properties (colors/formatting).
template <typename CharT> class BasicBuffer
{
struct Property
{
enum class Type { Color, Format };
Property(size_t position_, NC::Color color_, int id_)
: m_type(Type::Color), m_position(position_), m_color(color_), m_id(id_) { }
Property(size_t position_, NC::Format format_, int id_)
: m_type(Type::Format), m_position(position_), m_format(format_), m_id(id_) { }
size_t position() const { return m_position; }
size_t id() const { return m_id; }
bool operator<(const Property &rhs) const
{
if (m_position != rhs.m_position)
return m_position < rhs.m_position;
if (m_type != rhs.m_type)
return m_type < rhs.m_type;
switch (m_type)
{
case Type::Color:
if (m_color != rhs.m_color)
return m_color < rhs.m_color;
break;
case Type::Format:
if (m_format != rhs.m_format)
return m_format < rhs.m_format;
break;
}
return m_id < rhs.m_id;
}
friend Window &operator<<(Window &w, const Property &p)
{
switch (p.m_type)
{
case Type::Color:
w << p.m_color;
break;
case Type::Format:
w << p.m_format;
break;
}
return w;
}
private:
Type m_type;
size_t m_position;
Color m_color;
Format m_format;
size_t m_id;
};
public:
typedef std::basic_string<CharT> StringType;
typedef std::set<Property> Properties;
BasicBuffer() { }
const StringType &str() const { return m_string; }
const Properties &properties() const { return m_properties; }
template <typename PropertyT>
void setProperty(size_t position, PropertyT property, size_t id = -1)
{
m_properties.insert(Property(position, property, id));
}
template <typename PropertyT>
bool removeProperty(size_t position, PropertyT property, size_t id = -1)
{
auto it = m_properties.find(Property(position, property, id));
bool found = it != m_properties.end();
if (found)
m_properties.erase(it);
return found;
}
void removeProperties(size_t id = -1)
{
auto it = m_properties.begin();
while (it != m_properties.end())
{
if (it->id() == id)
m_properties.erase(it++);
else
++it;
}
}
void clear()
{
m_string.clear();
m_properties.clear();
}
BasicBuffer<CharT> &operator<<(int n)
{
m_string += boost::lexical_cast<StringType>(n);
return *this;
}
BasicBuffer<CharT> &operator<<(long int n)
{
m_string += boost::lexical_cast<StringType>(n);
return *this;
}
BasicBuffer<CharT> &operator<<(unsigned int n)
{
m_string += boost::lexical_cast<StringType>(n);
return *this;
}
BasicBuffer<CharT> &operator<<(unsigned long int n)
{
m_string += boost::lexical_cast<StringType>(n);
return *this;
}
BasicBuffer<CharT> &operator<<(CharT c)
{
m_string += c;
return *this;
}
BasicBuffer<CharT> &operator<<(const CharT *s)
{
m_string += s;
return *this;
}
BasicBuffer<CharT> &operator<<(const StringType &s)
{
m_string += s;
return *this;
}
BasicBuffer<CharT> &operator<<(Color color)
{
setProperty(m_string.size(), color);
return *this;
}
BasicBuffer<CharT> &operator<<(Format format)
{
setProperty(m_string.size(), format);
return *this;
}
private:
StringType m_string;
Properties m_properties;
};
typedef BasicBuffer<char> Buffer;
typedef BasicBuffer<wchar_t> WBuffer;
template <typename CharT>
Window &operator<<(Window &w, const BasicBuffer<CharT> &buffer)
{
if (buffer.properties().empty())
w << buffer.str();
else
{
auto &s = buffer.str();
auto &ps = buffer.properties();
auto p = ps.begin();
for (size_t i = 0; i < s.size(); ++i)
{
for (; p != ps.end() && p->position() == i; ++p)
w << *p;
w << s[i];
}
// load remaining properties
for (; p != ps.end(); ++p)
w << *p;
}
return w;
}
}
#endif // NCMPCPP_STRBUFFER_H
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