mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-13 19:54:39 +00:00
409 lines
11 KiB
C++
409 lines
11 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "ais_app.hpp"
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#include "event_m0.hpp"
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#include "string_format.hpp"
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#include "portapack.hpp"
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using namespace portapack;
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#include <algorithm>
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namespace ais {
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namespace format {
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static std::string latlon_normalized(const int32_t normalized) {
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const int32_t t = (normalized * 5) / 3;
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const int32_t degrees = t / (100 * 10000);
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const int32_t fraction = std::abs(t) % (100 * 10000);
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return to_string_dec_int(degrees) + "." + to_string_dec_int(fraction, 6, '0');
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}
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static std::string mmsi(
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const ais::MMSI& mmsi
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) {
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return to_string_dec_uint(mmsi, 9, '0');
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}
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static std::string datetime(
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const ais::DateTime& datetime
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) {
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return to_string_dec_uint(datetime.year, 4, '0') + "/" +
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to_string_dec_uint(datetime.month, 2, '0') + "/" +
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to_string_dec_uint(datetime.day, 2, '0') + " " +
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to_string_dec_uint(datetime.hour, 2, '0') + ":" +
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to_string_dec_uint(datetime.minute, 2, '0') + ":" +
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to_string_dec_uint(datetime.second, 2, '0');
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}
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static std::string navigational_status(const unsigned int value) {
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switch(value) {
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case 0: return "under way w/engine";
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case 1: return "at anchor";
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case 2: return "not under command";
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case 3: return "restricted maneuv";
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case 4: return "constrained draught";
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case 5: return "moored";
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case 6: return "aground";
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case 7: return "fishing";
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case 8: return "sailing";
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case 9: case 10: case 13: return "reserved";
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case 11: return "towing astern";
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case 12: return "towing ahead/along";
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case 14: return "SART/MOB/EPIRB";
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case 15: return "undefined";
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default: return "unexpected";
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}
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}
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} /* namespace format */
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} /* namespace ais */
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void AISLogger::on_packet(const ais::Packet& packet) {
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// TODO: Unstuff here, not in baseband!
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if( log_file.is_ready() ) {
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std::string entry;
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entry.reserve((packet.length() + 3) / 4);
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for(size_t i=0; i<packet.length(); i+=4) {
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const auto nibble = packet.read(i, 4);
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entry += (nibble >= 10) ? ('W' + nibble) : ('0' + nibble);
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}
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log_file.write_entry(packet.received_at(), entry);
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}
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}
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void AISRecentEntry::update(const ais::Packet& packet) {
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received_count++;
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switch(packet.message_id()) {
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case 1:
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case 2:
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case 3:
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navigational_status = packet.read(38, 4);
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last_position.timestamp = packet.received_at();
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last_position.latitude = packet.latitude(89);
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last_position.longitude = packet.longitude(61);
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break;
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case 4:
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// packet.datetime(38)
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last_position.timestamp = packet.received_at();
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last_position.latitude = packet.latitude(107);
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last_position.longitude = packet.longitude(79);
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break;
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case 5:
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call_sign = packet.text(70, 7);
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name = packet.text(112, 20);
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destination = packet.text(302, 20);
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break;
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case 21:
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name = packet.text(43, 20);
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last_position.timestamp = packet.received_at();
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last_position.latitude = packet.latitude(192);
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last_position.longitude = packet.longitude(164);
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break;
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default:
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break;
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}
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}
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const AISRecentEntry& AISRecentEntries::on_packet(const ais::Packet& packet) {
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const auto source_id = packet.source_id();
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auto matching_recent = find_by_mmsi(source_id);
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if( matching_recent != std::end(entries) ) {
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// Found within. Move to front of list, increment counter.
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entries.push_front(*matching_recent);
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entries.erase(matching_recent);
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} else {
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entries.emplace_front(source_id);
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truncate_entries();
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}
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auto& entry = entries.front();
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entry.update(packet);
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return entry;
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}
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AISRecentEntries::ContainerType::const_iterator AISRecentEntries::find_by_mmsi(const ais::MMSI key) const {
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return std::find_if(
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std::begin(entries), std::end(entries),
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[key](const AISRecentEntry& e) { return e.mmsi == key; }
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);
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}
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void AISRecentEntries::truncate_entries() {
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while(entries.size() > entries_max) {
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entries.pop_back();
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}
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}
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AISRecentEntries::RangeType AISRecentEntries::range_around(
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ContainerType::const_iterator item, const size_t count
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) const {
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auto start = item;
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auto end = item;
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size_t i = 0;
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// Move start iterator toward first entry.
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while( (start != std::begin(entries)) && (i < count / 2) ) {
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std::advance(start, -1);
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i++;
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}
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// Move end iterator toward last entry.
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while( (end != std::end(entries)) && (i < count) ) {
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std::advance(end, 1);
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i++;
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}
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return { start, end };
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}
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namespace ui {
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AISRecentEntriesView::AISRecentEntriesView(
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AISRecentEntries& recent
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) : recent { recent }
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{
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flags.focusable = true;
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}
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bool AISRecentEntriesView::on_encoder(const EncoderEvent event) {
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advance(event);
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return true;
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}
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bool AISRecentEntriesView::on_key(const ui::KeyEvent event) {
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if( event == ui::KeyEvent::Select ) {
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if( on_select ) {
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const auto selected = recent.find_by_mmsi(selected_key);
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if( selected != std::end(recent) ) {
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on_select(*selected);
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return true;
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}
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}
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}
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return false;
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}
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static void ais_list_item_draw(
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const AISRecentEntry& entry,
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const Rect& target_rect,
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Painter& painter,
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const Style& style,
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const bool is_selected
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) {
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const auto& draw_style = is_selected ? style.invert() : style;
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std::string line = ais::format::mmsi(entry.mmsi) + " ";
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if( !entry.name.empty() ) {
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line += entry.name;
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} else {
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line += entry.call_sign;
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}
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line.resize(target_rect.width() / 8, ' ');
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painter.draw_string(target_rect.pos, draw_style, line);
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}
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void AISRecentEntriesView::paint(Painter& painter) {
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const auto r = screen_rect();
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const auto& s = style();
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Rect target_rect { r.pos, { r.width(), s.font.line_height() }};
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const size_t visible_item_count = r.height() / s.font.line_height();
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auto selected = recent.find_by_mmsi(selected_key);
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if( selected == std::end(recent) ) {
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selected = std::begin(recent);
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}
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auto range = recent.range_around(selected, visible_item_count);
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for(auto p = range.first; p != range.second; p++) {
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const auto& entry = *p;
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const auto is_selected_key = (selected_key == entry.mmsi);
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ais_list_item_draw(entry, target_rect, painter, s, (has_focus() && is_selected_key));
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target_rect.pos.y += target_rect.height();
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}
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}
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void AISRecentEntriesView::advance(const int32_t amount) {
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auto selected = recent.find_by_mmsi(selected_key);
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if( selected == std::end(recent) ) {
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if( recent.empty() ) {
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selected_key = invalid_key;
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} else {
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selected_key = recent.front().mmsi;
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}
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} else {
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if( amount < 0 ) {
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if( selected != std::begin(recent) ) {
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std::advance(selected, -1);
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}
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}
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if( amount > 0 ) {
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std::advance(selected, 1);
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if( selected == std::end(recent) ) {
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return;
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}
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}
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selected_key = selected->mmsi;
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}
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set_dirty();
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}
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AISRecentEntryDetailView::AISRecentEntryDetailView() {
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add_children({ {
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&button_done,
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} });
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button_done.on_select = [this](const ui::Button&) {
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if( this->on_close ) {
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this->on_close();
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}
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};
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}
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void AISRecentEntryDetailView::focus() {
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button_done.focus();
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}
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Rect AISRecentEntryDetailView::draw_field(
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Painter& painter,
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const Rect& draw_rect,
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const Style& style,
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const std::string& label,
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const std::string& value
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) {
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const size_t label_length_max = 4;
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painter.draw_string(Point { draw_rect.left(), draw_rect.top() }, style, label);
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const auto length = value.length();
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painter.draw_string(Point { draw_rect.left() + (label_length_max + 1) * 8, draw_rect.top() }, style, value);
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return { draw_rect.left(), draw_rect.top() + draw_rect.height(), draw_rect.width(), draw_rect.height() };
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}
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void AISRecentEntryDetailView::paint(Painter& painter) {
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View::paint(painter);
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const auto s = style();
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const auto rect = screen_rect();
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auto field_rect = Rect { rect.left(), rect.top() + 16, rect.width(), 16 };
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const size_t mmsi_length = 9;
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field_rect = draw_field(painter, field_rect, s, "MMSI", to_string_dec_int(entry_.mmsi, mmsi_length));
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field_rect = draw_field(painter, field_rect, s, "Name", entry_.name);
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field_rect = draw_field(painter, field_rect, s, "Call", entry_.call_sign);
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field_rect = draw_field(painter, field_rect, s, "Dest", entry_.destination);
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field_rect = draw_field(painter, field_rect, s, "Lat ", ais::format::latlon_normalized(entry_.last_position.latitude) + "N");
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field_rect = draw_field(painter, field_rect, s, "Lon ", ais::format::latlon_normalized(entry_.last_position.longitude) + "E");
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field_rect = draw_field(painter, field_rect, s, "Stat", ais::format::navigational_status(entry_.navigational_status));
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field_rect = draw_field(painter, field_rect, s, "Rx #", to_string_dec_uint(entry_.received_count));
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}
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void AISRecentEntryDetailView::set_entry(const AISRecentEntry& entry) {
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entry_ = entry;
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set_dirty();
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}
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AISAppView::AISAppView() {
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add_children({ {
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&recent_entries_view,
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&recent_entry_detail_view,
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} });
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recent_entry_detail_view.hidden(true);
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EventDispatcher::message_map().register_handler(Message::ID::AISPacket,
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[this](Message* const p) {
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const auto message = static_cast<const AISPacketMessage*>(p);
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const ais::Packet packet { message->packet };
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if( packet.is_valid() ) {
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this->on_packet(packet);
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}
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}
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);
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receiver_model.set_baseband_configuration({
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.mode = 3,
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.sampling_rate = 2457600,
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.decimation_factor = 1,
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});
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receiver_model.set_baseband_bandwidth(1750000);
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recent_entries_view.on_select = [this](const AISRecentEntry& entry) {
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this->on_show_detail(entry);
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};
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recent_entry_detail_view.on_close = [this]() {
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this->on_show_list();
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};
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}
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AISAppView::~AISAppView() {
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EventDispatcher::message_map().unregister_handler(Message::ID::AISPacket);
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}
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void AISAppView::set_parent_rect(const Rect new_parent_rect) {
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View::set_parent_rect(new_parent_rect);
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recent_entries_view.set_parent_rect({ 0, 0, new_parent_rect.width(), new_parent_rect.height() });
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recent_entry_detail_view.set_parent_rect({ 0, 0, new_parent_rect.width(), new_parent_rect.height() });
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}
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void AISAppView::on_packet(const ais::Packet& packet) {
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logger.on_packet(packet);
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const auto updated_entry = recent.on_packet(packet);
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recent_entries_view.set_dirty();
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// TODO: Crude hack, should be a more formal listener arrangement...
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if( updated_entry.mmsi == recent_entry_detail_view.entry().mmsi ) {
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recent_entry_detail_view.set_entry(updated_entry);
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}
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}
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void AISAppView::on_show_list() {
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recent_entries_view.hidden(false);
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recent_entry_detail_view.hidden(true);
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recent_entries_view.focus();
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}
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void AISAppView::on_show_detail(const AISRecentEntry& entry) {
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recent_entries_view.hidden(true);
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recent_entry_detail_view.hidden(false);
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recent_entry_detail_view.set_entry(entry);
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recent_entry_detail_view.focus();
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}
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} /* namespace ui */
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