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authorAurélien Aptel <aurelien.aptel@gmail.com>2010-09-02 01:42:03 +0200
committerAurélien Aptel <aurelien.aptel@gmail.com>2010-09-02 01:42:03 +0200
commitfbc6ec3207fa1298ec8347697ddea6b3e78f13d0 (patch)
tree45b463e7f32cc6fe680cb9cbc04ff319d0131dc9
parent9d82bdd94708fa2daabc0b53f8b71bca2a3c6f0a (diff)
downloadst-fbc6ec3207fa1298ec8347697ddea6b3e78f13d0.tar.gz
st-fbc6ec3207fa1298ec8347697ddea6b3e78f13d0.tar.bz2
resize from the top.
-rw-r--r--st.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/st.c b/st.c
index f7f9de8..ed5481d 100644
--- 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]);
}