mirror of
https://github.com/aristocratos/btop.git
synced 2024-06-02 10:35:14 +12:00
249 lines
7 KiB
C++
249 lines
7 KiB
C++
/* Copyright 2021 Aristocratos (jakob@qvantnet.com)
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
|
|
indent = tab
|
|
tab-size = 4
|
|
*/
|
|
|
|
#ifndef _btop_tools_included_
|
|
#define _btop_tools_included_
|
|
|
|
#include <string>
|
|
#include <cmath>
|
|
#include <vector>
|
|
#include <map>
|
|
|
|
#include <unistd.h>
|
|
#include <termios.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <btop_globs.h>
|
|
|
|
using std::string, std::to_string, std::round, std::vector, std::map, std::cin;
|
|
|
|
//? ------------------------------------------------- NAMESPACES ------------------------------------------------------
|
|
|
|
//* Collection of escape codes for text style and formatting
|
|
namespace Fx {
|
|
//* Escape sequence start
|
|
const string e = "\x1b[";
|
|
//* Bold on
|
|
const string b = e + "1m";
|
|
//* Bold off
|
|
const string ub = e + "22m";
|
|
//* Dark on
|
|
const string d = e + "2m";
|
|
//* Dark off
|
|
const string ud = e + "22m";
|
|
//* Italic on
|
|
const string i = e + "3m";
|
|
//* Italic off
|
|
const string ui = e + "23m";
|
|
//* Underline on
|
|
const string ul = e + "4m";
|
|
//* Underline off
|
|
const string uul = e + "24m";
|
|
//* Blink on
|
|
const string bl = e + "5m";
|
|
//* Blink off
|
|
const string ubl = e + "25m";
|
|
//* Strike / crossed-out on
|
|
const string s = e + "9m";
|
|
//* Strike / crossed-out off
|
|
const string us = e + "29m";
|
|
//* Reset foreground/background color and text effects
|
|
const string reset_base = e + "0m";
|
|
//* Reset text effects and restore default foregrund and background color < Changed by C_Theme
|
|
string reset = reset_base;
|
|
};
|
|
|
|
//* Collection of escape codes and functions for cursor manipulation
|
|
namespace Mv {
|
|
//* Move cursor to <line>, <column>
|
|
inline string to(int line, int col){ return Fx::e + to_string(line) + ";" + to_string(col) + "f";}
|
|
//* Move cursor right <x> columns
|
|
inline string r(int x){ return Fx::e + to_string(x) + "C";}
|
|
//* Move cursor left <x> columns
|
|
inline string l(int x){ return Fx::e + to_string(x) + "D";}
|
|
//* Move cursor up x lines
|
|
inline string u(int x){ return Fx::e + to_string(x) + "A";}
|
|
//* Move cursor down x lines
|
|
inline string d(int x) { return Fx::e + to_string(x) + "B";}
|
|
//* Save cursor position
|
|
const string save = Fx::e + "s";
|
|
//* Restore saved cursor postion
|
|
const string restore = Fx::e + "u";
|
|
};
|
|
|
|
//? --------------------------------------------------- FUNCTIONS -----------------------------------------------------
|
|
|
|
//* Return number of UTF8 characters in a string
|
|
inline size_t ulen(const string& str){
|
|
size_t len = 0;
|
|
for (char c : str) if ((c & 0xC0) != 0x80) ++len;
|
|
return len;
|
|
}
|
|
|
|
//* Return current time since epoch in milliseconds
|
|
uint64_t time_ms(){
|
|
return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
|
|
}
|
|
|
|
//* Check if a string is a valid bool value
|
|
bool isbool(string str){
|
|
return (str == "true") || (str == "false") || (str == "True") || (str == "False");
|
|
}
|
|
|
|
//* Check if a string is a valid integer value
|
|
bool isint(string str){
|
|
return all_of(str.begin(), str.end(), ::isdigit);
|
|
}
|
|
|
|
//* Left-trim <t_str> from <str> and return string
|
|
string ltrim(string str, string t_str = " "){
|
|
while (str.starts_with(t_str)) str.erase(0, t_str.size());
|
|
return str;
|
|
}
|
|
|
|
//* Right-trim <t_str> from <str> and return string
|
|
string rtrim(string str, string t_str = " "){
|
|
while (str.ends_with(t_str)) str.resize(str.size() - t_str.size());
|
|
return str;
|
|
}
|
|
|
|
//* Left-right-trim <t_str> from <str> and return string
|
|
string trim(string str, string t_str = " "){
|
|
return ltrim(rtrim(str, t_str), t_str);
|
|
}
|
|
|
|
//* Split <string> at <delim> <times> (0 for unlimited) times and return vector
|
|
vector<string> ssplit(string str, string delim = " ", int times = 0){
|
|
vector<string> out;
|
|
if (str != "" && delim != ""){
|
|
size_t pos = 0;
|
|
int x = 0;
|
|
string tmp;
|
|
while ((pos = str.find(delim)) != string::npos){
|
|
tmp = str.substr(0, pos);
|
|
if (tmp != delim && tmp != "") out.push_back(tmp);
|
|
str.erase(0, pos + delim.size());
|
|
if (times > 0 && ++x >= times) break;
|
|
}
|
|
}
|
|
out.push_back(str);
|
|
return out;
|
|
}
|
|
|
|
//? --------------------------------------------------- CLASSES -----------------------------------------------------
|
|
|
|
//* Collection of escape codes and functions for terminal manipulation
|
|
class C_Term {
|
|
struct termios initial_settings;
|
|
public:
|
|
bool initialized = false;
|
|
int width = 0;
|
|
int height = 0;
|
|
bool resized = false;
|
|
|
|
//* Hide terminal cursor
|
|
const string hide_cursor = Fx::e + "?25l";
|
|
|
|
//* Show terminal cursor
|
|
const string show_cursor = Fx::e + "?25h";
|
|
|
|
//* Switch to alternate screen
|
|
const string alt_screen = Fx::e + "?1049h";
|
|
|
|
//* Switch to normal screen
|
|
const string normal_screen = Fx::e + "?1049l";
|
|
|
|
//* Clear screen and set cursor to position 0,0
|
|
const string clear = Fx::e + "2J" + Fx::e + "0;0f";
|
|
|
|
//* Enable reporting of mouse position on click and release
|
|
const string mouse_on = Fx::e + "?1002h" + Fx::e + "?1015h" + Fx::e + "?1006h";
|
|
|
|
//* Disable mouse reporting
|
|
const string mouse_off = Fx::e + "?1002l";
|
|
|
|
//* Enable reporting of mouse position at any movement
|
|
const string mouse_direct_on = Fx::e + "?1003h";
|
|
|
|
//* Disable direct mouse reporting
|
|
const string mouse_direct_off = Fx::e + "?1003l";
|
|
|
|
//* Toggle need for return key when reading input
|
|
bool linebuffered(bool on=true){
|
|
struct termios settings;
|
|
if (tcgetattr(STDIN_FILENO, &settings)) return false;
|
|
if (on) settings.c_lflag |= ICANON;
|
|
else settings.c_lflag &= ~(ICANON);
|
|
if (tcsetattr(STDIN_FILENO, TCSANOW, &settings)) return false;
|
|
if (on) setlinebuf(stdin);
|
|
else setbuf(stdin, NULL);
|
|
return true;
|
|
}
|
|
|
|
//* Toggle terminal input echo
|
|
bool echo(bool on=true){
|
|
struct termios settings;
|
|
if (tcgetattr(STDIN_FILENO, &settings)) return false;
|
|
if (on) settings.c_lflag |= ECHO;
|
|
else settings.c_lflag &= ~(ECHO);
|
|
return 0 == tcsetattr(STDIN_FILENO, TCSANOW, &settings);
|
|
}
|
|
|
|
//* Refresh variables holding current terminal width and height and return true if resized
|
|
bool refresh(){
|
|
struct winsize w;
|
|
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
|
|
resized = (width != w.ws_col || height != w.ws_row) ? true : false;
|
|
width = w.ws_col;
|
|
height = w.ws_row;
|
|
return resized;
|
|
}
|
|
|
|
//* Check for a valid tty, save terminal options and set new options
|
|
bool init(){
|
|
if (!initialized){
|
|
initialized = (bool)isatty(STDIN_FILENO);
|
|
if (initialized) {
|
|
initialized = (0 == tcgetattr(STDIN_FILENO, &initial_settings));
|
|
cin.sync_with_stdio(false);
|
|
cin.tie(NULL);
|
|
echo(false);
|
|
linebuffered(false);
|
|
}
|
|
}
|
|
return initialized;
|
|
}
|
|
|
|
//* Restore terminal options
|
|
void restore(){
|
|
if (initialized) {
|
|
echo(true);
|
|
linebuffered(true);
|
|
tcsetattr(STDIN_FILENO, TCSANOW, &initial_settings);
|
|
initialized = false;
|
|
}
|
|
}
|
|
|
|
C_Term() {
|
|
init();
|
|
refresh();
|
|
resized = false;
|
|
}
|
|
};
|
|
|
|
#endif |