portapack-mayhem/firmware/application/string_format.cpp
euquiq b41074fbe3 Revert into use of spaces for padding freq
This patch addresses the issue detected in: https://github.com/eried/portapack-mayhem/issues/159

This patch will revert the behavior of the function to_string_short_freq

into using spaces on the left of the integer part of the frequency (as it did originally).

When upgrading the scanner app, I did change the behavior of this function eliminating those spaces, so I could gain some characters-worth of space inside the scanner,  but I failed to detect that it introduced some lack of padding on the rx->audio app.

Now, it is back as before, and I also did update the scanner so it can cope with the "extra spaces" this function now adds (again).
2020-08-21 15:05:37 -03:00

226 lines
5.2 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.
*/
#include "string_format.hpp"
static char* to_string_dec_uint_internal(
char* p,
uint32_t n
) {
*p = 0;
auto q = p;
do {
const uint32_t d = n % 10;
const char c = d + 48;
*(--q) = c;
n /= 10;
} while( n != 0 );
return q;
}
static char* to_string_dec_uint_pad_internal(
char* const term,
const uint32_t n,
const int32_t l,
const char fill
) {
auto q = to_string_dec_uint_internal(term, n);
if( fill ) {
while( (term - q) < l ) {
*(--q) = fill;
}
}
return q;
}
std::string to_string_bin(
const uint32_t n,
const uint8_t l)
{
char p[33];
for (uint8_t c = 0; c < l; c++) {
if (n & (1 << (l - 1 - c)))
p[c] = '1';
else
p[c] = '0';
}
p[l] = 0;
return p;
}
std::string to_string_dec_uint(
const uint32_t n,
const int32_t l,
const char fill
) {
char p[16];
auto term = p + sizeof(p) - 1;
auto q = to_string_dec_uint_pad_internal(term, n, l, fill);
// Right justify.
while( (term - q) < l ) {
*(--q) = ' ';
}
return q;
}
std::string to_string_dec_int(
const int32_t n,
const int32_t l,
const char fill
) {
const size_t negative = (n < 0) ? 1 : 0;
uint32_t n_abs = negative ? -n : n;
char p[16];
auto term = p + sizeof(p) - 1;
auto q = to_string_dec_uint_pad_internal(term, n_abs, l - negative, fill);
// Add sign.
if( negative ) {
*(--q) = '-';
}
// Right justify.
while( (term - q) < l ) {
*(--q) = ' ';
}
return q;
}
std::string to_string_short_freq(const uint64_t f) {
auto final_str = to_string_dec_int(f / 1000000,4) + "." + to_string_dec_int((f / 100) % 10000, 4, '0');
return final_str;
}
std::string to_string_time_ms(const uint32_t ms) {
std::string final_str { "" };
if (ms < 1000) {
final_str = to_string_dec_uint(ms) + "ms";
} else {
auto seconds = ms / 1000;
if (seconds >= 60)
final_str = to_string_dec_uint(seconds / 60) + "m";
return final_str + to_string_dec_uint(seconds % 60) + "s";
}
return final_str;
}
static void to_string_hex_internal(char* p, const uint64_t n, const int32_t l) {
const uint32_t d = n & 0xf;
p[l] = (d > 9) ? (d + 55) : (d + 48);
if( l > 0 ) {
to_string_hex_internal(p, n >> 4, l - 1);
}
}
std::string to_string_hex(const uint64_t n, int32_t l) {
char p[32];
l = std::min(l, 31L);
to_string_hex_internal(p, n, l - 1);
p[l] = 0;
return p;
}
std::string to_string_hex_array(uint8_t * const array, const int32_t l) {
std::string str_return = "";
uint8_t bytes;
for (bytes = 0; bytes < l; bytes++)
str_return += to_string_hex(array[bytes], 2);
return str_return;
}
std::string to_string_datetime(const rtc::RTC& value, const TimeFormat format) {
std::string string { "" };
if (format == YMDHMS) {
string += to_string_dec_uint(value.year(), 4) + "/" +
to_string_dec_uint(value.month(), 2, '0') + "/" +
to_string_dec_uint(value.day(), 2, '0') + " ";
}
string += to_string_dec_uint(value.hour(), 2, '0') + ":" +
to_string_dec_uint(value.minute(), 2, '0');
if ((format == YMDHMS) || (format == HMS))
string += ":" + to_string_dec_uint(value.second(), 2, '0');
return string;
}
std::string to_string_timestamp(const rtc::RTC& value) {
return to_string_dec_uint(value.year(), 4, '0') +
to_string_dec_uint(value.month(), 2, '0') +
to_string_dec_uint(value.day(), 2, '0') +
to_string_dec_uint(value.hour(), 2, '0') +
to_string_dec_uint(value.minute(), 2, '0') +
to_string_dec_uint(value.second(), 2, '0');
}
std::string to_string_FAT_timestamp(const FATTimestamp& timestamp) {
return to_string_dec_uint((timestamp.FAT_date >> 9) + 1980) + "/" +
to_string_dec_uint((timestamp.FAT_date >> 5) & 0xF, 2) + "/" +
to_string_dec_uint((timestamp.FAT_date & 0x1F), 2) + " " +
to_string_dec_uint((timestamp.FAT_time >> 11), 2) + ":" +
to_string_dec_uint((timestamp.FAT_time >> 5) & 0x3F, 2);
}
std::string unit_auto_scale(double n, const uint32_t base_nano, uint32_t precision) {
const uint32_t powers_of_ten[5] = { 1, 10, 100, 1000, 10000 };
std::string string { "" };
uint32_t prefix_index = base_nano;
double integer_part;
double fractional_part;
precision = std::min((uint32_t)4, precision);
while (n > 1000) {
n /= 1000.0;
prefix_index++;
}
fractional_part = modf(n, &integer_part) * powers_of_ten[precision];
if (fractional_part < 0)
fractional_part = -fractional_part;
string = to_string_dec_int(integer_part);
if (precision)
string += '.' + to_string_dec_uint(fractional_part, precision);
if (prefix_index != 3)
string += unit_prefix[prefix_index];
return string;
}