portapack-mayhem/firmware/application/apps/ui_whipcalc.cpp
Kyle Reed 909f37f89b
whipcalc parsing, bug fixes (#1174)
* whipcalc parsing, bug fixes
2023-06-20 20:22:58 +02:00

179 lines
6.4 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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_whipcalc.hpp"
#include "ch.h"
#include "convert.hpp"
#include "event_m0.hpp"
#include "file_reader.hpp"
#include "portapack.hpp"
#include <cstring>
using namespace portapack;
namespace ui {
void WhipCalcView::focus() {
field_frequency.focus();
}
void WhipCalcView::update_result() {
double length, calclength, divider;
console.clear(true);
divider = ((double)options_type.selected_index_value() / 8.0);
// Antenna lengths fields
if (field_frequency.value() > 0) {
// Metric
length = (speed_of_light_mps / (double)field_frequency.value()) * divider;
auto m = to_string_dec_int((int)length, 0);
// auto cm = to_string_dec_int(int(length * 100.0) % 100, 2);
// auto mm = to_string_dec_int(int(length * 1000.0) % 10, 1);
calclength = get_decimals(length, 100); // cm
auto cm = to_string_dec_int(int(calclength), 0);
auto mm = to_string_dec_int(int(get_decimals(calclength, 10, true)), 0);
text_result_metric.set(m + "m " + cm + "." + mm + "cm");
// Imperial
calclength = (speed_of_light_fps / (double)field_frequency.value()) * divider;
auto feet = to_string_dec_int(int(calclength), 0);
calclength = get_decimals(calclength, 12); // inches
auto inch = to_string_dec_int(int(calclength), 0);
auto inch_c = to_string_dec_int(int(get_decimals(calclength, 10, true)), 0);
text_result_imperial.set(feet + "ft " + inch + "." + inch_c + "in");
} else {
text_result_metric.set("infinity+");
text_result_imperial.set("infinity+");
return;
}
uint8_t ant_count = 9; // Shown antennas counter
length *= 1000; // Get length in mm needed to extend the antenna
for (antenna_entry antenna : antenna_db) { // go thru all antennas available
uint16_t element, refined_quarter = 0;
for (element = 0; element < antenna.elements.size(); element++) {
if (length == antenna.elements[element]) // Exact element in length
{
element++; // Real element is +1 (zero based vector)
break; // Done with this ant
} else if (length < antenna.elements[element]) {
double remain, this_element, quarter = 0;
remain = length - antenna.elements[element - 1]; // mm needed from this element to reach length
this_element = antenna.elements[element] - antenna.elements[element - 1]; // total mm on this element
quarter = (remain * 4) / this_element; // havoc & portack ended on this int(quarter) resolution.
if (quarter - int(quarter) > 0.5) { // rounding gave a measure closer to next quarter
refined_quarter = int(quarter) + 1;
if (refined_quarter == 4) { // rounding gave a measure closer to next element
refined_quarter = 0;
element++;
}
} else {
refined_quarter = int(quarter);
}
break; // Done with this ant
}
}
/*if (!ant_count)
{
console.write(" and more ...");
break;
}*/
console.write(antenna.label + ": " + to_string_dec_int(element, 1) + frac_str[refined_quarter] + " elements\n");
ant_count--; // For now, just showing all.
}
}
WhipCalcView::WhipCalcView(NavigationView& nav)
: nav_{nav} {
add_children({&labels,
//&antennas_on_memory,
&field_frequency,
&options_type,
&text_result_metric,
&text_result_imperial,
&console,
&button_exit});
// Try loading antennas from file.
load_antenna_db();
if (!antenna_db.size())
add_default_antenna();
// antennas_on_memory.set(to_string_dec_int(antenna_db.size(),0) + " antennas"); //tell user
options_type.set_selected_index(2); // Quarter wave
options_type.on_change = [this](size_t, OptionsField::value_t) {
this->update_result();
};
field_frequency.set_step(1000000); // 1MHz step
field_frequency.updated = [this](rf::Frequency) {
update_result();
};
button_exit.on_select = [this, &nav](Button&) {
nav.pop();
};
update_result();
}
void WhipCalcView::load_antenna_db() {
File antennas_file;
auto error = antennas_file.open("/WHIPCALC/ANTENNAS.TXT");
if (error)
return;
auto reader = FileLineReader(antennas_file);
for (const auto& line : reader) {
if (line.length() == 0 || line[0] == '#')
continue; // Empty or comment line.
auto cols = split_string(line, ',');
if (cols.size() < 2)
continue; // Line doesn't have enough columns.
antenna_entry new_antenna{
std::string{cols[0]}};
// Add antenna elements.
for (auto i = 1ul; i < cols.size(); ++i) {
uint16_t length = 0;
if (parse_int(cols[i], length)) {
new_antenna.elements.push_back(length);
}
}
if (!new_antenna.elements.empty())
antenna_db.push_back(std::move(new_antenna));
}
}
void WhipCalcView::add_default_antenna() {
antenna_db.push_back({"ANT500", {185, 315, 450, 586, 724, 862}}); // store a default ant500
}
} // namespace ui