[hackers] [st] Force redisplay of all lines in DECSCNM || "Roberto E. Vargas Caballero"

From: <hg_AT_suckless.org>
Date: Mon, 3 Sep 2012 21:55:47 +0200 (CEST)

changeset: 264:6c47c6d6192b
tag: tip
user: "Roberto E. Vargas Caballero" <k0ga_AT_shike2.com>
date: Mon Sep 03 21:52:34 2012 +0200
files: st.c
description:
Force redisplay of all lines in DECSCNM
When it is called DECSCNM all lines become dirty, because it is necessary
redraw all lines for getting the new colors. It is easy see the problem
running 'echo ^[[?5h'.

In order to get a correct flash when running tput flash is necessary wait
after DECSCNM, until the changes are displayed, because in other case the
switch between reverse on/reverse off will be too much fast and nothing will
happen.

---
 st.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)
diff -r c3514854da2a -r 6c47c6d6192b st.c
--- a/st.c	Mon Sep 03 21:52:21 2012 +0200
+++ b/st.c	Mon Sep 03 21:52:34 2012 +0200
_AT_@ -54,6 +54,7 @@
 
 #define SELECT_TIMEOUT (20*1000) /* 20 ms */
 #define DRAW_TIMEOUT  (20*1000) /* 20 ms */
+#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
_AT_@ -238,6 +239,7 @@
 
 static void die(const char*, ...);
 static void draw(void);
+static void redraw(void);
 static void drawregion(int, int, int, int);
 static void execsh(void);
 static void sigchld(int);
_AT_@ -1206,7 +1208,7 @@
 				mode = term.mode;
 				MODBIT(term.mode,set, MODE_REVERSE);
 				if (mode != term.mode)
-					draw();
+					redraw();
 				break;
 			case 7:
 				MODBIT(term.mode, set, MODE_WRAP);
_AT_@ -2030,6 +2032,14 @@
 }
 
 void
+redraw(void) {
+	struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
+	tfulldirt();
+	draw();
+	nanosleep(&tv, NULL);
+}
+
+void
 draw() {
 	drawregion(0, 0, term.col, term.row);
 	xcopy();

Received on Mon Sep 03 2012 - 21:55:47 CEST