portapack-mayhem/firmware/application/ui_rssi.cpp
Jared Boone 47a3ffb15a Insulate ui::Context a bit from its clients.
Add accessor methods.
2015-11-09 11:56:40 -08:00

109 lines
2.7 KiB
C++

/*
* Copyright (C) 2015 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.
*/
#include "ui_rssi.hpp"
#include <algorithm>
namespace ui {
void RSSI::on_show() {
context().message_map().register_handler(Message::ID::RSSIStatistics,
[this](const Message* const p) {
this->on_statistics_update(static_cast<const RSSIStatisticsMessage*>(p)->statistics);
}
);
}
void RSSI::on_hide() {
context().message_map().unregister_handler(Message::ID::RSSIStatistics);
}
void RSSI::paint(Painter& painter) {
const auto r = screen_rect();
/*
constexpr int32_t rssi_min = 0.# * 256 / 3.3;
constexpr int32_t rssi_max = 2.5 * 256 / 3.3;
// (23 - 194) / 2
*/
/* TODO: Clip maximum */
constexpr int32_t raw_min = 23;
const int32_t x_0 = 0;
const int32_t x_min = std::max(x_0, (min_ - raw_min) / 2);
const int32_t x_avg = std::max(x_min, (avg_ - raw_min) / 2);
const int32_t x_max = std::max(x_avg + 1, (max_ - raw_min) / 2);
const int32_t x_lim = r.width();
const Rect r0 {
static_cast<ui::Coord>(r.left() + x_0), r.top(),
static_cast<ui::Dim>(x_min - x_0), r.height()
};
painter.fill_rectangle(
r0,
Color::blue()
);
const Rect r1 {
static_cast<ui::Coord>(r.left() + x_min), r.top(),
static_cast<ui::Dim>(x_avg - x_min), r.height()
};
painter.fill_rectangle(
r1,
Color::red()
);
const Rect r2 {
static_cast<ui::Coord>(r.left() + x_avg), r.top(),
1, r.height()
};
painter.fill_rectangle(
r2,
Color::white()
);
const Rect r3 {
static_cast<ui::Coord>(r.left() + x_avg + 1), r.top(),
static_cast<ui::Dim>(x_max - (x_avg + 1)), r.height()
};
painter.fill_rectangle(
r3,
Color::red()
);
const Rect r4 {
static_cast<ui::Coord>(r.left() + x_max), r.top(),
static_cast<ui::Dim>(x_lim - x_max), r.height()
};
painter.fill_rectangle(
r4,
Color::black()
);
}
void RSSI::on_statistics_update(const RSSIStatistics& statistics) {
min_ = statistics.min;
avg_ = statistics.accumulator / statistics.count;
max_ = statistics.max;
set_dirty();
}
} /* namespace ui */