st

fork of suckless's simple terminal
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commit 62ab938965f2673e029ae2e2a4244788e673bd70
parent 2b1bc8087f232a7b0ba4c7233e76be7abae25a88
Author: Mihail Zenkov <mihail.zenkov@gmail.com>
Date:   Tue,  1 Oct 2013 20:02:24 +0200

Fix save/restore cursor

st was assuming that save/restore cursor position was independent
of the screen that was shown in each moment, but it is not true,
because each screen has a different save/restore buffer. This
patch fixes it.

Diffstat:
Mst.c | 15++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/st.c b/st.c
@@ -1342,13 +1342,14 @@ tfulldirt(void) {
 
 void
 tcursor(int mode) {
-    static TCursor c;
+    static TCursor c[2];
+    bool alt = IS_SET(MODE_ALTSCREEN);
 
     if(mode == CURSOR_SAVE) {
-        c = term.c;
+        c[alt] = term.c;
     } else if(mode == CURSOR_LOAD) {
-        term.c = c;
-        tmoveto(c.x, c.y);
+        term.c = c[alt];
+        tmoveto(c[alt].x, c[alt].y);
     }
 }
 
@@ -1854,12 +1855,12 @@ tsetmode(bool priv, bool set, int *args, int narg) {
             case 1034:
                 MODBIT(term.mode, set, MODE_8BIT);
                 break;
-            case 1049: /* = 1047 and 1048 */
-            case 47:
+            case 1049: /* swap screen & set/restore cursor as xterm */
+                tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+            case 47: /* swap screen */
             case 1047:
                 if (!allowaltscreen)
                     break;
-
                 alt = IS_SET(MODE_ALTSCREEN);
                 if(alt) {
                     tclearregion(0, 0, term.col-1,