commit fbc6ec3207fa1298ec8347697ddea6b3e78f13d0
parent 9d82bdd94708fa2daabc0b53f8b71bca2a3c6f0a
Author: Aurélien Aptel <aurelien.aptel@gmail.com>
Date: Thu, 2 Sep 2010 01:42:03 +0200
resize from the top.
Diffstat:
| M | st.c | | | 17 | +++++++++++++++-- |
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/st.c b/st.c
@@ -1060,12 +1060,25 @@ tresize(int col, int row) {
int i;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
+ int slide = term.c.y - row + 1;
if(col < 1 || row < 1)
return;
- /* free uneeded rows */
- for(i = row; i < term.row; i++) {
+ /* free unneeded rows */
+ i = 0;
+ if(slide > 0) {
+ /* slide screen to keep cursor where we expect it -
+ * tscrollup would work here, but we can optimize to
+ * memmove because we're freeing the earlier lines */
+ for(/* i = 0 */; i < slide; i++) {
+ free(term.line[i]);
+ free(term.alt[i]);
+ }
+ memmove(term.line, term.line + slide, row * sizeof(Line));
+ memmove(term.alt, term.alt + slide, row * sizeof(Line));
+ }
+ for(i += row; i < term.row; i++) {
free(term.line[i]);
free(term.alt[i]);
}
