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author | noname | 2014-04-20 17:26:13 +0400 |
---|---|---|
committer | Roberto E. Vargas Caballero | 2014-04-23 20:35:16 +0200 |
commit | 3afdb4ff04b45a5e4209a56d5073341c9d506b38 (patch) | |
tree | 94a038e33f121c962b35d8d1bcfe4b3b3fefad07 | |
parent | f9dc374ea01c2921ec3bd1214f292a7036d069ae (diff) | |
download | st-3afdb4ff04b45a5e4209a56d5073341c9d506b38.tar.gz st-3afdb4ff04b45a5e4209a56d5073341c9d506b38.tar.xz st-3afdb4ff04b45a5e4209a56d5073341c9d506b38.zip |
Use tsetdirt in tscrollup and tscrolldown.
tscrollup and tscrolldown do not use tsetdirt, but their code is
equivalent to
tsetdirt(orig, term.bot-n);
tsetdirt(orig+n, term.bot);
tclearregion also marks cleared lines as dirty.
In tscrolldown it sets lines from term.bot-n+1 to term.bot dirty, and in
tscrollup it sets lines from orig to orig+n-1 dirty.
In both functions all lines from orig to term.bot are effectively set
dirty, but in tscrolldown lines from orig+n to term.bot are set dirty
twice, and in tscrollup lines from orig to term.bot-n are set dirty
twice.
These patches make it clear which lines are set dirty and sets them
dirty once in each funciton.
-rw-r--r-- | st.c | 10 |
1 files changed, 4 insertions, 6 deletions
@@ -1399,14 +1399,13 @@ tscrolldown(int orig, int n) { LIMIT(n, 0, term.bot-orig+1); tclearregion(0, term.bot-n+1, term.col-1, term.bot); + tsetdirt(orig, term.bot-n); + tsetdirt(orig+n, term.bot); for(i = term.bot; i >= orig+n; i--) { temp = term.line[i]; term.line[i] = term.line[i-n]; term.line[i-n] = temp; - - term.dirty[i] = 1; - term.dirty[i-n] = 1; } selscroll(orig, n); @@ -1419,14 +1418,13 @@ tscrollup(int orig, int n) { LIMIT(n, 0, term.bot-orig+1); tclearregion(0, orig, term.col-1, orig+n-1); + tsetdirt(orig, term.bot-n); + tsetdirt(orig+n, term.bot); for(i = orig; i <= term.bot-n; i++) { temp = term.line[i]; term.line[i] = term.line[i+n]; term.line[i+n] = temp; - - term.dirty[i] = 1; - term.dirty[i+n] = 1; } selscroll(orig, -n); |