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Only move bottom if it was scrolled out of the window - scroll - scrollbackbuff… |
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git clone git://git.suckless.org/scroll |
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--- |
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commit 4b23d03e3c8dcac58d48fc89c1bc84f5ce27b718 |
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parent 97b90414891e957c95caffe078c69b18aa38e659 |
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Author: Jochen Sprickerhof <[email protected]> |
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Date: Fri, 17 Apr 2020 22:47:19 +0200 |
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Only move bottom if it was scrolled out of the window |
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Diffstat: |
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M scroll.c | 12 +++++++++--- |
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1 file changed, 9 insertions(+), 3 deletions(-) |
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--- |
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diff --git a/scroll.c b/scroll.c |
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@@ -314,16 +314,22 @@ scrollup(int n) |
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write(STDOUT_FILENO, scrollend->buf + 1, scrollend->size - 1); |
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else |
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write(STDOUT_FILENO, scrollend->buf, scrollend->size); |
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- bottom = TAILQ_NEXT(bottom, entries); |
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+ if ( x + n >= ws.ws_row) |
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+ bottom = TAILQ_NEXT(bottom, entries); |
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/* print rows lines and move bottom forward to the new screen bottom */ |
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for (; rows > 1; rows--) { |
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scrollend = TAILQ_PREV(scrollend, tailhead, entries); |
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- bottom = TAILQ_NEXT(bottom, entries); |
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+ if ( x + n >= ws.ws_row) |
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+ bottom = TAILQ_NEXT(bottom, entries); |
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write(STDOUT_FILENO, scrollend->buf, scrollend->size); |
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} |
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/* move cursor from line n to the old bottom position */ |
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- dprintf(STDOUT_FILENO, "\033[%d;0H", x); |
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+ if (x + n < ws.ws_row) { |
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+ dprintf(STDOUT_FILENO, "\033[%d;%dH", x + n, y); |
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+ write(STDOUT_FILENO, "\033[?25h", 6); /* show cursor */ |
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+ } else |
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+ dprintf(STDOUT_FILENO, "\033[%d;0H", ws.ws_row); |
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} |
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void |
