roflcat/include/basic_color_printer.hpp
2019-01-11 20:48:47 -08:00

68 lines
2.4 KiB
C++

/**
roflcat
Copyright (C) 2019 rexy712
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef BASIC_COLOR_PRINTER_HPP
#define BASIC_COLOR_PRINTER_HPP
#include "color_printer_base.hpp"
namespace bcp_detail{//lookup tables for the basic_color_printer class
template<int I>
struct lookup_table{};
template<>
struct lookup_table<8>{
static constexpr const char* table[] = {"12","12","14","14","10","10","11","11","9","9","13","13"};
static constexpr long len = sizeof(table)/sizeof(table[0]); //long because of arithmetic promotion during modulo
};
template<>
struct lookup_table<16>:public lookup_table<8>{};
template<>
struct lookup_table<256>{
static constexpr const char* table[] = {"39", "38", "44", "43", "49", "48", "84", "83", "119", "118", "154", "148", "184", "178", "214", "208", "209", "203", "204", "198", "199", "163", "164", "128", "129", "93", "99", "63", "69", "33"};
static constexpr long len = sizeof(table)/sizeof(table[0]);
};
}
//For color systems which have an easily enumerated amount of colors (256 and lower essentially)
template<int I>
class basic_color_printer : public color_printer_base<basic_color_printer<I>>
{
friend class printer_base<basic_color_printer<I>>;
private:
static constexpr const char* const* color_lookup_table = bcp_detail::lookup_table<I>::table;
static constexpr long color_lookup_len = bcp_detail::lookup_table<I>::len;
private:
int m_col = 0; //current column number
int m_line = 0; //current line number
int m_index = -1; //index in lookup_table
const int m_randomness; //change starting color
public:
constexpr basic_color_printer(const cmd_args& args)noexcept;
~basic_color_printer(void)noexcept = default;
protected:
basic_color_printer& _print(const wchar_t s)noexcept;
constexpr basic_color_printer& _reset(void)noexcept;
constexpr void inc_col(int i);
constexpr void inc_line(void);
};
#endif