mayhem-firmware/firmware/common/ui_text.hpp
Bernd Herzog dcaa02c1e1
External module api (#2290)
* added external module debug view

* integrated module driver into i2c subsystem

* implemented i2c app loader

* added view mirror api

* fixed build

* added i2c to module api

* implemented standalone app touch event

* implemented focus management

* reverted formating change

* refactoring

* refactoring

* implemented events

* fixed memory usage
2024-10-14 13:07:41 +02:00

113 lines
2.4 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"
// C1 Control Characters are an unprintable range of glyphs missing from the font files
#define C1_CONTROL_CHARS_START 0x80
#define C1_CONTROL_CHARS_COUNT 32
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;
Dim char_width() const;
Size size_of(const std::string s) const;
const uint8_t* get_data() const {
return data;
}
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__*/