65 lines
1.8 KiB
V
65 lines
1.8 KiB
V
module term
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import os
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pub struct Coord16 {
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pub:
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x i16
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y i16
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}
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struct SmallRect {
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left i16
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top i16
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right i16
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bottom i16
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}
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// win: CONSOLE_SCREEN_BUFFER_INFO
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// https://docs.microsoft.com/en-us/windows/console/console-screen-buffer-info-str
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struct ConsoleScreenBufferInfo {
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dw_size Coord16
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dw_cursor_position Coord16
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w_attributes u16
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sr_window SmallRect
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dw_maximum_window_size Coord16
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}
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// ref - https://docs.microsoft.com/en-us/windows/console/getconsolescreenbufferinfo
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fn C.GetConsoleScreenBufferInfo(handle os.HANDLE, info &ConsoleScreenBufferInfo) bool
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// ref - https://docs.microsoft.com/en-us/windows/console/setconsoletitle
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fn C.SetConsoleTitle(title &u16) bool
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// get_terminal_size returns a number of colums and rows of terminal window.
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pub fn get_terminal_size() (int, int) {
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if is_atty(1) > 0 && os.getenv('TERM') != 'dumb' {
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info := ConsoleScreenBufferInfo{}
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if C.GetConsoleScreenBufferInfo(C.GetStdHandle(C.STD_OUTPUT_HANDLE), &info) {
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columns := int(info.sr_window.right - info.sr_window.left + 1)
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rows := int(info.sr_window.bottom - info.sr_window.top + 1)
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return columns, rows
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}
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}
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return default_columns_size, default_rows_size
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}
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// get_cursor_position returns a Coord containing the current cursor position
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pub fn get_cursor_position() Coord {
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mut res := Coord{}
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if is_atty(1) > 0 && os.getenv('TERM') != 'dumb' {
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info := ConsoleScreenBufferInfo{}
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if C.GetConsoleScreenBufferInfo(C.GetStdHandle(C.STD_OUTPUT_HANDLE), &info) {
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res.x = info.dw_cursor_position.x
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res.y = info.dw_cursor_position.y
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}
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}
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return res
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}
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// set_terminal_title change the terminal title
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pub fn set_terminal_title(title string) bool {
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title_change := C.SetConsoleTitle(title.to_wide())
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return title_change
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}
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