117 lines
2.5 KiB
V
117 lines
2.5 KiB
V
// Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license
|
|
// that can be found in the LICENSE file.
|
|
module term
|
|
|
|
// Sources for ANSI Control Sequences
|
|
// https://github.com/RajeshPatkarInstitute/Panim
|
|
// https://www.gnu.org/software/screen/manual/html_node/Control-Sequences.html
|
|
// https://en.wikipedia.org/wiki/ANSI_escape_code
|
|
// Support for Windows
|
|
// https://en.wikipedia.org/wiki/ANSI.SYS
|
|
// #include <windows.h>
|
|
// C.SetConsoleMode(C.ENABLE_VIRTUAL_TERMINAL_INPUT)
|
|
// Setting cursor to the given position
|
|
// x is the x coordinate
|
|
// y is the y coordinate
|
|
pub fn set_cursor_position(c Coord) {
|
|
print('\x1b[$c.y;$c.x' + 'H')
|
|
flush_stdout()
|
|
}
|
|
|
|
// n is number of cells
|
|
// direction: A is up / North
|
|
// direction: B is down / South
|
|
// direction: C is forward / East
|
|
// direction: D is backward / West
|
|
pub fn move(n int, direction string) {
|
|
print('\x1b[$n$direction')
|
|
flush_stdout()
|
|
}
|
|
|
|
pub fn cursor_up(n int) {
|
|
move(n, 'A')
|
|
}
|
|
|
|
pub fn cursor_down(n int) {
|
|
move(n, 'B')
|
|
}
|
|
|
|
pub fn cursor_forward(n int) {
|
|
move(n, 'C')
|
|
}
|
|
|
|
pub fn cursor_back(n int) {
|
|
move(n, 'D')
|
|
}
|
|
|
|
// type: 0 -> current cursor position to end of the screen
|
|
// type: 1 -> current cursor position to beginning of the screen
|
|
// type: 2 -> clears entire screen
|
|
// type: 3 -> clears entire screen and also delete scrollback buffer
|
|
|
|
pub fn erase_display(t string) {
|
|
print('\x1b[' + t + 'J')
|
|
flush_stdout()
|
|
}
|
|
|
|
pub fn erase_toend() {
|
|
erase_display('0')
|
|
}
|
|
|
|
pub fn erase_tobeg() {
|
|
erase_display('1')
|
|
}
|
|
|
|
// clears entire screen and returns cursor to top left-corner
|
|
pub fn erase_clear() {
|
|
print('\033[H\033[J')
|
|
flush_stdout()
|
|
}
|
|
|
|
pub fn erase_del_clear() {
|
|
erase_display('3')
|
|
}
|
|
|
|
// type: 0 -> current cursor position to end of the line
|
|
// type: 1 -> current cursor position to beginning of the line
|
|
// type: 2 -> clears entire line
|
|
// Note: Cursor position does not change
|
|
pub fn erase_line(t string) {
|
|
print('\x1b[' + t + 'K')
|
|
flush_stdout()
|
|
}
|
|
|
|
pub fn erase_line_toend() {
|
|
erase_line('0')
|
|
}
|
|
|
|
pub fn erase_line_tobeg() {
|
|
erase_line('1')
|
|
}
|
|
|
|
pub fn erase_line_clear() {
|
|
erase_line('2')
|
|
}
|
|
|
|
// Will make cursor appear if not visible
|
|
pub fn show_cursor() {
|
|
print('\x1b[?25h')
|
|
flush_stdout()
|
|
}
|
|
|
|
// Will make cursor invisible
|
|
pub fn hide_cursor() {
|
|
print('\x1b[?25l')
|
|
flush_stdout()
|
|
}
|
|
|
|
// clear_previous_line - useful for progressbars.
|
|
// It moves the cursor to start of line, then 1 line above,
|
|
// then erases the line. In effect the next println will overwrite
|
|
// the previous content.
|
|
pub fn clear_previous_line() {
|
|
print('\r\x1b[1A\x1b[2K')
|
|
flush_stdout()
|
|
}
|