resize from the top. - st - Personal fork of st
 (HTM) git clone git://git.drkhsh.at/st.git
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       ---
 (DIR) commit fbc6ec3207fa1298ec8347697ddea6b3e78f13d0
 (DIR) parent 9d82bdd94708fa2daabc0b53f8b71bca2a3c6f0a
 (HTM) 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(-)
       ---
 (DIR) 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]);
                }