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term.ui: render to the alternate buffer (#6832)

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This commit is contained in:
spaceface777
2020-11-14 20:05:22 +01:00
committed by GitHub
parent b96a0246b5
commit 1ead130eed
6 changed files with 102 additions and 83 deletions
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43
vlib/term/ui/termios_nix.c.v
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@@ -45,9 +45,10 @@ fn restore_terminal_state() {
termios_reset()
mut c := ctx_ptr
if c != 0 {
c.paused = true
c.load_title()
}
println('')
os.flush()
}
fn (mut ctx Context) termios_setup() {
@@ -79,9 +80,10 @@ fn (mut ctx Context) termios_setup() {
termios.c_cc[C.VMIN] = 0
C.tcsetattr(C.STDIN_FILENO, C.TCSAFLUSH, &termios)
print('\x1b[?1003h\x1b[?1006h')
if ctx.cfg.use_alternate_buffer {
print('\x1b[?1049h')
}
ctx.termios = termios
ctx.window_height, ctx.window_width = get_terminal_size()
// Reset console on exit
@@ -97,6 +99,7 @@ fn (mut ctx Context) termios_setup() {
width: c.window_width
height: c.window_height
}
c.paused = false
c.event(event)
}
})
@@ -123,11 +126,17 @@ fn (mut ctx Context) termios_setup() {
c.event(event)
}
})
os.flush()
}
fn termios_reset() {
C.tcsetattr(C.STDIN_FILENO, C.TCSAFLUSH /* C.TCSANOW ?? */, &termios_at_startup)
print('\x1b[?1003l\x1b[?1015l\x1b[?1006l\x1b[0J\x1b[?25h')
print('\x1b[?1003l\x1b[?1006l\x1b[?25h')
c := ctx_ptr
if c != 0 && c.cfg.use_alternate_buffer {
print('\x1b[?1049l')
}
os.flush()
}
///////////////////////////////////////////
@@ -147,20 +156,22 @@ fn (mut ctx Context) termios_loop() {
if sleep_len > 0 {
time.usleep(sleep_len)
}
sw.restart()
if ctx.cfg.event_fn != voidptr(0) {
len := C.read(C.STDIN_FILENO, ctx.read_buf.data, ctx.read_buf.cap - ctx.read_buf.len)
if len > 0 {
ctx.resize_arr(len)
ctx.parse_events()
if !ctx.paused {
sw.restart()
if ctx.cfg.event_fn != voidptr(0) {
len := C.read(C.STDIN_FILENO, ctx.read_buf.data, ctx.read_buf.cap - ctx.read_buf.len)
if len > 0 {
ctx.resize_arr(len)
ctx.parse_events()
}
}
}
ctx.frame()
sw.pause()
e := sw.elapsed().microseconds()
sleep_len = frame_time - int(e)
ctx.frame()
sw.pause()
e := sw.elapsed().microseconds()
sleep_len = frame_time - int(e)
ctx.frame_count++
ctx.frame_count++
}
}
}