mayhem-firmware/firmware/common/ui_text.hpp
2016-11-28 10:55:45 -08:00

105 lines
1.9 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __UI_TEXT_H__
#define __UI_TEXT_H__
#include <cstdint>
#include <cstddef>
#include <string>
#include "ui.hpp"
namespace ui {
class Glyph {
public:
constexpr Glyph(
Dim w,
Dim h,
const uint8_t* const pixels
) : w_ { static_cast<uint8_t>(w) },
h_ { static_cast<uint8_t>(h) },
pixels_ { pixels }
{
}
int w() const {
return w_;
}
int h() const {
return h_;
}
Size size() const {
return { w_, h_ };
}
Point advance() const {
return { w_, 0 };
}
const uint8_t* pixels() const {
return pixels_;
}
private:
const uint8_t w_;
const uint8_t h_;
const uint8_t* const pixels_;
};
class Font {
public:
constexpr Font(
Dim w,
Dim h,
const uint8_t* data,
char c_start,
size_t c_count
) : w { w },
h { h },
data { data },
c_start { c_start },
c_count { c_count },
data_stride { (w * h + 7U) >> 3 }
{
}
Glyph glyph(const char c) const;
Dim line_height() const;
Size size_of(const std::string s) const;
private:
const Dim w;
const Dim h;
const uint8_t* const data;
const char c_start;
const size_t c_count;
const size_t data_stride;
};
} /* namespace ui */
#endif/*__UI_TEXT_H__*/