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terminology
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reflow: fix vertical shrinking

This commit is contained in:
Boris Faure 2013-04-12 18:35:56 +02:00
parent ce65369d57
commit 274e2b13b2
1 changed files with 20 additions and 6 deletions
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26
src/bin/termpty.c
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@ -810,27 +810,41 @@ _termpty_vertically_shrink(Termpty *ty, int old_w, int old_h,
else
{
/* in place */
int len, pos, offset;
if (to_history <= 0)
return;
old_circular_offset = (old_circular_offset + to_history) % old_h;
ty->circular_offset = old_circular_offset;
if (ty->circular_offset == 0)
return;
ty->circular_offset = (ty->circular_offset + to_history) % old_h;
len = real_h - to_history;
pos = (len + ty->circular_offset) % old_h;
offset = len - pos;
/* 2 times */
for (y = ty->circular_offset - 1; y > 0; y--)
for (y = pos - 1; y >= 0; y--)
{
src = &(old_screen[y * old_w]);
dst = &(OLD_SCREEN(0, y));
dst = &(old_screen[(y + offset) * old_w]);
termpty_cell_copy(ty, src, dst, old_w);
}
for (y = 0; y < ty->circular_offset; y++)
for (y = 0; y < offset; y++)
{
src = &(OLD_SCREEN(0, y));
src = &(old_screen[(ty->circular_offset + y) * old_w]);
dst = &(old_screen[y * old_w]);
termpty_cell_copy(ty, src, dst, old_w);
}
ty->circular_offset = 0;
len = ty->h - len;
if (len)
{
memset(&old_screen[(old_h - len) * old_w],
0,
sizeof(Termcell) * len * old_w);
}
}
}