shithub: irc.myr

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Improve terminal redraw.

--- a/irc.myr

+++ b/irc.myr

@@ -21,6 +21,8 @@

 	input	: byte[:]

 	cmdhist	: byte[:][:]

 	histidx	: std.size

+	chandirty	: bool

+	cmddirty	: bool

 ;;

 type server = struct

@@ -259,7 +261,9 @@

 		.nick = std.sldup(nick),

 		.focus = -1,

 		.term = t,

-		.logdir = std.pathcat(home, ".irclogs")

+		.logdir = std.pathcat(home, ".irclogs"),

+		.chandirty = true,

+		.cmddirty = true,

 	])

 	cli.self = mkchan(cli, "status", "status")

@@ -644,6 +648,11 @@

 		| `std.Some `termdraw.Ctrl 'u':

 			std.slfree(cli.input)

 			cli.input = ""

+		| `std.Some `termdraw.Ctrl 'l':

+			/* force redraw of everything */

+			termdraw.cls(cli.term)

+			cli.chandirty = true

+			cli.cmddirty = true

 		| `std.Some `termdraw.Kup:

 			if chan.scroll < curchan(cli).hist.len

 				curchan(cli).scroll++

@@ -656,6 +665,8 @@

 			s = std.fmt("{}", r)

 			puthist(cli, cli.self, (std.now(), `Status s))

 		;;

+		cli.cmddirty = true

+		redraw(cli)

 	;;

 }

@@ -667,7 +678,6 @@

 const redraw = {cli

 	var c, x, y, w, h

-	termdraw.cls(cli.term)

 	if cli.term.width < 10 || cli.term.height < 5

 		-> void

 	;;

@@ -677,10 +687,16 @@

 	w = cli.term.width

 	h = cli.term.height

 	c = curchan(cli)

-	drawbanner(cli, 0, 0, w, 1, c)

-	drawtext(cli, 0, 1, w, h - 2, c)

-	drawlist(cli, 0, h - 2, w, h - 1, c)

-	drawinput(cli, 0, h - 1, w, h, c)

+	if cli.chandirty

+		drawbanner(cli, 0, 0, w, 1, c)

+		drawtext(cli, 0, 1, w, h - 2, c)

+		drawlist(cli, 0, h - 2, w, h - 1, c)

+		cli.chandirty = false

+	;;

+	if cli.cmddirty

+		drawinput(cli, 0, h - 1, w, h, c)

+		cli.cmddirty = false

+	;;

 	termdraw.flush(cli.term)

 }

@@ -931,6 +947,7 @@

 const puthist = {cli, chan, entry

 	var tm, date, contents

+	cli.chandirty = true

 	std.slpush(&chan.hist, entry)

 	(tm, contents) = entry

 	if chan.log != -1

-- 

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