mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-14 04:04:34 +00:00
212 lines
7.2 KiB
C++
212 lines
7.2 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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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 "ui_whipcalc.hpp"
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#include "ch.h"
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#include "portapack.hpp"
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#include "event_m0.hpp"
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#include <cstring>
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using namespace portapack;
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namespace ui {
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void WhipCalcView::focus() {
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field_frequency.focus();
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}
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double ui::WhipCalcView::get_decimals(double num, int16_t mult, bool round) {
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num -= int(num); //keep decimals only
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num *= mult; //Shift decimals into integers
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if (!round) return num;
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int16_t intnum = int(num); //Round it up if necessary
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num -= intnum; //Get decimal part
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if (num > .5) intnum++; //Round up
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return intnum;
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}
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void WhipCalcView::update_result() {
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double length, calclength, divider;
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divider = ((double)options_type.selected_index_value() / 8.0);
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// Metric
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length = (speed_of_light_mps / (double)field_frequency.value()) * divider;
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auto m = to_string_dec_int((int)length, 2);
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/* auto cm = to_string_dec_int(int(length * 100.0) % 100, 2);
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auto mm = to_string_dec_int(int(length * 1000.0) % 10, 1); */
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calclength = get_decimals(length,100); //cm
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auto cm = to_string_dec_int(int(calclength), 2);
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auto mm = to_string_dec_int(int(get_decimals(calclength,10,true)), 1);
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text_result_metric.set(m + "m " + cm + "." + mm + "cm");
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uint8_t ant_count = 8; //Shown antennas counter
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console.write("\f"); //Equivalent to clear console and string buffer.
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length *= 1000; //Get length in mm needed to extend the antenna
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for (antenna_entry antenna : antenna_db) { //go thru all antennas available
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if (length >= antenna.elements.front() && length <= antenna.elements.back()) //This antenna is OK
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{
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uint16_t element,refined_quarter=0;
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for(element=0; element < antenna.elements.size();element++) {
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if (length == antenna.elements[element]) //Exact element in length
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{
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element++; //Real element is +1 (zero based vector)
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break; //Done with this ant
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}
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else if (length < antenna.elements[element])
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{
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double remain, this_element, quarter = 0;
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remain = length - antenna.elements[element-1]; //mm needed from this element to reach length
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this_element=antenna.elements[element] - antenna.elements[element -1]; //total mm on this element
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quarter = (remain * 4) / this_element; //havoc & portack ended on this int(quarter) resolution.
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if (quarter - int(quarter) > 0.5) { //rounding gave a measure closer to next quarter
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refined_quarter=int(quarter) + 1;
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if(refined_quarter == 4) { //rounding gave a measure closer to next element
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refined_quarter = 0;
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element++;
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}
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} else {
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refined_quarter=int(quarter);
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}
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break; //Done with this ant
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}
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}
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if (!ant_count) {
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console.write(" and more ...");
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break;
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}
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console.write(antenna.label + " " + to_string_dec_int(element,1) + frac_str[refined_quarter] + " elements\n");
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ant_count--;
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}
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}
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// Imperial
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calclength = (speed_of_light_fps / (double)field_frequency.value()) * divider;
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auto feet = to_string_dec_int(int(calclength), 3);
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calclength = get_decimals(calclength,12); //inches
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auto inch = to_string_dec_int(int(calclength), 2);
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auto inch_c = to_string_dec_int(int(get_decimals(calclength,10,true)), 1);
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text_result_imperial.set(feet + "ft " + inch + "." + inch_c + "in");
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}
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WhipCalcView::WhipCalcView(
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NavigationView& nav
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) {
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add_children({
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&labels,
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&antennas_on_memory,
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&field_frequency,
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&options_type,
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&text_result_metric,
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&text_result_imperial,
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&console,
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&button_exit
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});
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File antennas_file; //LOAD /WHIPCALC/ANTENNAS.TXT from microSD
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auto result = antennas_file.open("WHIPCALC/ANTENNAS.TXT");
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antenna_db.clear(); //Start with fresh db
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if (result.is_valid()) {
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antenna_Default(); //There is no txt, store a default ant500
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} else {
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std::string line; //There is a txt file
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char one_char[1]; //Read it char by char
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for (size_t pointer=0; pointer < antennas_file.size();pointer++) {
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antennas_file.seek(pointer);
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antennas_file.read(one_char, 1);
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if ((int)one_char[0] > ' ') { //ascii space upwards
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line += one_char[0]; //Add it to the textline
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}
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else if (one_char[0] == '\n') { //New Line
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txtline_process(line); //make sense of this textline
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line.clear(); //Ready for next textline
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}
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}
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if (line.length() > 0) txtline_process(line); //Last line had no newline at end ?
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if (!antenna_db.size()) antenna_Default(); //no antenna found on txt, use default
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}
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antennas_on_memory.set(to_string_dec_int(antenna_db.size(),2) + " antennas"); //tell user
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options_type.on_change = [this](size_t, OptionsField::value_t) {
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this->update_result();
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};
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options_type.set_selected_index(2); // Quarter wave
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field_frequency.set_value(transmitter_model.tuning_frequency());
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field_frequency.set_step(500000); // 500kHz step
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field_frequency.on_change = [this](rf::Frequency) {
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this->update_result();
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};
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field_frequency.on_edit = [this, &nav]() {
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// TODO: Provide separate modal method/scheme?
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auto new_view = nav.push<FrequencyKeypadView>(transmitter_model.tuning_frequency());
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new_view->on_changed = [this](rf::Frequency f) {
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this->update_result();
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this->field_frequency.set_value(f);
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};
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};
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button_exit.on_select = [this, &nav](Button&) {
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nav.pop();
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};
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update_result();
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}
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void ui::WhipCalcView::txtline_process(std::string& line) {
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if (line.find("#") != std::string::npos) return; //Line is just a comment
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char separator = ',';
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size_t previous = 0;
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uint16_t value = 0;
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antenna_entry new_antenna;
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size_t current = line.find(separator);
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while (current != std::string::npos) {
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if (!previous) { //first space found
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new_antenna.label.assign(line,0,current); //antenna label
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} else {
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value = std::stoi(line.substr(previous,current - previous));
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if (!value) return; //No element length? abort antenna
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new_antenna.elements.push_back(value); //Store this new element
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}
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previous = current + 1;
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current = line.find(separator,previous); //Search for next space delimiter
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}
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if (!previous) return; //Not even a label ? drop this antenna!
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value = std::stoi(line.substr(previous,current - previous)); //Last element
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if (!value) return;
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new_antenna.elements.push_back(value);
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antenna_db.push_back(new_antenna); //Add this antenna
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}
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void ui::WhipCalcView::antenna_Default() {
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antenna_db.push_back({"ANT500",{ 185, 315, 450, 586, 724, 862} }); //store a default ant500
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}
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}
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