2021-05-08 14:56:48 +02:00
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/* Copyright 2021 Aristocratos (jakob@qvantnet.com)
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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2021-05-10 23:46:41 +02:00
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http://www.apache.org/licenses/LICENSE-2.0
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2021-05-08 14:56:48 +02:00
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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indent = tab
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tab-size = 4
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*/
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#ifndef _btop_tools_included_
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#define _btop_tools_included_
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#include <string>
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#include <cmath>
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#include <vector>
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#include <map>
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2021-05-09 00:18:51 +02:00
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#include <chrono>
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#include <thread>
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#include <algorithm>
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#include <unistd.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#include <btop_globs.h>
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#include <btop_config.h>
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using namespace std;
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//? ------------------------------------------------- NAMESPACES ------------------------------------------------------
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//* Collection of escape codes for text style and formatting
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namespace Fx {
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//* Escape sequence start
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const string e = "\x1b[";
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//* Bold on
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const string b = e + "1m";
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//* Dark on
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const string d = e + "2m";
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//* Italic on
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const string i = e + "3m";
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//* Underline on
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const string ul = e + "4m";
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//* Blink on
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const string bl = e + "5m";
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//* Strike / crossed-out on
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const string s = e + "9m";
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//* Reset foreground/background color and text effects
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const string reset_base = e + "0m";
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//* Reset text effects and restore default foregrund and background color < Changed by C_Theme
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string reset = reset_base;
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};
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//* Collection of escape codes and functions for cursor manipulation
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namespace Mv {
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//* Move cursor to <line>, <column>
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inline string to(int line, int col){ return Fx::e + to_string(line) + ";" + to_string(col) + "f";}
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//* Move cursor right <x> columns
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inline string r(int x){ return Fx::e + to_string(x) + "C";}
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//* Move cursor left <x> columns
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inline string l(int x){ return Fx::e + to_string(x) + "D";}
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//* Move cursor up x lines
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inline string u(int x){ return Fx::e + to_string(x) + "A";}
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//* Move cursor down x lines
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inline string d(int x) { return Fx::e + to_string(x) + "B";}
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//* Save cursor position
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const string save = Fx::e + "s";
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//* Restore saved cursor postion
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const string restore = Fx::e + "u";
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};
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//? --------------------------------------------------- FUNCTIONS -----------------------------------------------------
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//* Return number of UTF8 characters in a string
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size_t ulen(string s){
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return std::count_if(s.begin(), s.end(),
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[](char c) { return (static_cast<unsigned char>(c) & 0xC0) != 0x80; } );
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}
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//* Return current time since epoch in milliseconds
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uint64_t time_ms(){
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return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
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}
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//* Check if a string is a valid bool value
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bool isbool(string str){
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return (str == "true") || (str == "false") || (str == "True") || (str == "False");
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}
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//* Check if a string is a valid integer value
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bool isint(string str){
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return all_of(str.begin(), str.end(), ::isdigit);
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}
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//* Left-trim <t_str> from <str> and return string
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string ltrim(string str, string t_str = " "){
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while (str.starts_with(t_str)) str.erase(0, t_str.size());
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return str;
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}
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//* Right-trim <t_str> from <str> and return string
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string rtrim(string str, string t_str = " "){
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while (str.ends_with(t_str)) str.resize(str.size() - t_str.size());
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return str;
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}
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//* Left-right-trim <t_str> from <str> and return string
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string trim(string str, string t_str = " "){
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return ltrim(rtrim(str, t_str), t_str);
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}
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//* Split <string> at <delim> <time> number of times (0 for unlimited) and return vector
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vector<string> ssplit(string str, string delim = " ", int times = 0){
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vector<string> out;
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if (!str.empty() && !delim.empty()){
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size_t pos = 0;
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int x = 0;
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string tmp;
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while ((pos = str.find(delim)) != string::npos){
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tmp = str.substr(0, pos);
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if (tmp != delim && !tmp.empty()) out.push_back(tmp);
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str.erase(0, pos + delim.size());
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if (times > 0 && ++x >= times) break;
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}
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}
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out.push_back(str);
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return out;
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}
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//* Put current thread to sleep for <ms> milliseconds
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void sleep_ms(unsigned ms) {
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std::this_thread::sleep_for(std::chrono::milliseconds(ms));
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}
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//* Left justify string <str> if <x> is greater than <str> length, limit return size to <x> by default
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string ljustify(string str, size_t x, bool utf=false, bool lim=true){
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if (!utf) {
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if (lim && str.size() > x) str.resize(x);
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return str + string(max((int)(x - str.size()), 0), ' ');
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} else {
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if (lim && ulen(str) > x) {
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auto i = str.size();
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while (ulen(str) > x) str.resize(--i);
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}
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return str + string(max((int)(x - ulen(str)), 0), ' ');
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}
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}
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//* Right justify string <str> if <x> is greater than <str> length, limit return size to <x> by default
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string rjustify(string str, size_t x, bool utf=false, bool lim=true){
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if (!utf) {
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if (lim && str.size() > x) str.resize(x);
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return string(max((int)(x - str.size()), 0), ' ') + str;
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} else {
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if (lim && ulen(str) > x) {
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auto i = str.size();
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while (ulen(str) > x) str.resize(--i);
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}
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return string(max((int)(x - ulen(str)), 0), ' ') + str;
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}
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}
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//* Trim trailing characters if utf8 string length is greatear than <x>
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string uresize(string str, size_t x){
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auto i = str.size();
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if (i < 1 || x < 1) return str;
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while (ulen(str) > x) str.resize(--i);
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return str;
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}
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//* Replace whitespaces " " with escape code for move right
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string trans(string str){
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size_t pos;
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string newstr;
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while ((pos = str.find(' ')) != string::npos){
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newstr.append(str.substr(0, pos));
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str.erase(0, pos);
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pos = 1;
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while (pos < str.size() && str.at(pos) == ' ') pos++;
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newstr.append(Mv::r(pos));
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str.erase(0, pos);
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}
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return (newstr.empty()) ? str : newstr;
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}
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//* Clean string by replacing null byte '\0' with whitespace ' '
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string clean_nullbyte(string str){
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while (str.find('\0') != string::npos) str.replace(str.find('\0'), 1, " ");
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return str;
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}
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string sec_to_dhms(unsigned sec){
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string out;
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unsigned d, h, m;
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d = sec / (3600 * 24);
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sec %= 3600 * 24;
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h = sec / 3600;
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sec %= 3600;
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m = sec / 60;
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sec %= 60;
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if (d>0) out = to_string(d) + "d ";
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out += (h<10) ? "0" + to_string(h) + ":" : to_string(h) + ":";
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out += (m<10) ? "0" + to_string(m) + ":" : to_string(m) + ":";
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out += (sec<10) ? "0" + to_string(sec) : to_string(sec);
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return out;
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}
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//? --------------------------------------------------- CLASSES -----------------------------------------------------
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//* Collection of escape codes and functions for terminal manipulation
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class C_Term {
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struct termios initial_settings;
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public:
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bool initialized = false;
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bool resized = false;
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unsigned width = 0;
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unsigned height = 0;
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//* Hide terminal cursor
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const string hide_cursor = Fx::e + "?25l";
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//* Show terminal cursor
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const string show_cursor = Fx::e + "?25h";
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//* Switch to alternate screen
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const string alt_screen = Fx::e + "?1049h";
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//* Switch to normal screen
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const string normal_screen = Fx::e + "?1049l";
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//* Clear screen and set cursor to position 0,0
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const string clear = Fx::e + "2J" + Fx::e + "0;0f";
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//* Enable reporting of mouse position on click and release
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const string mouse_on = Fx::e + "?1002h" + Fx::e + "?1015h" + Fx::e + "?1006h";
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//* Disable mouse reporting
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const string mouse_off = Fx::e + "?1002l";
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//* Enable reporting of mouse position at any movement
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const string mouse_direct_on = Fx::e + "?1003h";
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//* Disable direct mouse reporting
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const string mouse_direct_off = Fx::e + "?1003l";
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//* Toggle need for return key when reading input
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bool linebuffered(bool on=true){
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struct termios settings;
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if (tcgetattr(STDIN_FILENO, &settings)) return false;
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if (on) settings.c_lflag |= ICANON;
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else settings.c_lflag &= ~(ICANON);
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if (tcsetattr(STDIN_FILENO, TCSANOW, &settings)) return false;
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if (on) setlinebuf(stdin);
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else setbuf(stdin, NULL);
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return true;
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}
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//* Toggle terminal input echo
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bool echo(bool on=true){
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struct termios settings;
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if (tcgetattr(STDIN_FILENO, &settings)) return false;
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if (on) settings.c_lflag |= ECHO;
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else settings.c_lflag &= ~(ECHO);
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return 0 == tcsetattr(STDIN_FILENO, TCSANOW, &settings);
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}
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//* Refresh variables holding current terminal width and height and return true if resized
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bool refresh(){
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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resized = (width != w.ws_col || height != w.ws_row) ? true : false;
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State::width = width = w.ws_col;
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State::height = height = w.ws_row;
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return resized;
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}
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//* Check for a valid tty, save terminal options and set new options
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bool init(){
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if (!initialized){
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initialized = (bool)isatty(STDIN_FILENO);
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if (initialized) {
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initialized = (0 == tcgetattr(STDIN_FILENO, &initial_settings));
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cin.sync_with_stdio(false);
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cin.tie(NULL);
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echo(false);
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linebuffered(false);
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}
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}
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return initialized;
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}
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//* Restore terminal options
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void restore(){
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if (initialized) {
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echo(true);
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linebuffered(true);
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tcsetattr(STDIN_FILENO, TCSANOW, &initial_settings);
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initialized = false;
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}
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}
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C_Term() {
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init();
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refresh();
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resized = false;
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}
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};
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2021-05-09 22:25:41 +02:00
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//? --------------------------------------------------- STRUCTS -------------------------------------------------------
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2021-05-10 23:46:41 +02:00
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#endif
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