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This commit is contained in:
Jim Blandy 1992-02-04 01:11:11 +00:00
parent 05ba02ebb4
commit 326e0cf80b
1 changed files with 24 additions and 23 deletions
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47
src/scroll.c
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@ -237,6 +237,7 @@ do_scrolling (screen, matrix, window_size, unchanged_at_top)
register struct matrix_elt *p; register struct matrix_elt *p;
register int i, j; register int i, j;
register struct screen_glyphs *current_screen; register struct screen_glyphs *current_screen;
/* temp_screen->enable[i] means line i has been moved to current_screen. */
register struct screen_glyphs *temp_screen; register struct screen_glyphs *temp_screen;
struct queue { int count, pos; } *queue; struct queue { int count, pos; } *queue;
int offset = unchanged_at_top; int offset = unchanged_at_top;
@ -487,11 +488,11 @@ line_ins_del (screen, ov1, pf1, ovn, pfn, ov, mf)
register int insert_overhead = ov1 * 10; register int insert_overhead = ov1 * 10;
register int next_insert_cost = ovn * 10; register int next_insert_cost = ovn * 10;
for (i = 0; i < screen_height; i++) for (i = screen_height-1; i >= 0; i--)
{ {
mf[screen_height - i] = next_insert_cost / 10; mf[i] = next_insert_cost / 10;
next_insert_cost += pfn; next_insert_cost += pfn;
ov[screen_height - i] = (insert_overhead + next_insert_cost) / 10; ov[i] = (insert_overhead + next_insert_cost) / 10;
insert_overhead += pf1; insert_overhead += pf1;
} }
} }
@ -568,29 +569,29 @@ do_line_insertion_deletion_costs (screen,
{ {
if (SCREEN_INSERT_COST (screen) != 0) if (SCREEN_INSERT_COST (screen) != 0)
{ {
SCREEN_INSERT_COST (screen) SCREEN_INSERT_COST (screen) =
= (int *) xrealloc (SCREEN_INSERT_COST (screen), (int *) xrealloc (SCREEN_INSERT_COST (screen),
SCREEN_HEIGHT (screen) * sizeof (int)); SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_DELETEN_COST (screen) SCREEN_DELETEN_COST (screen) =
= (int *) xrealloc (SCREEN_DELETEN_COST (screen), (int *) xrealloc (SCREEN_DELETEN_COST (screen),
SCREEN_HEIGHT (screen) * sizeof (int)); SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_INSERTN_COST (screen) SCREEN_INSERTN_COST (screen) =
= (int *) xrealloc (SCREEN_INSERTN_COST (screen), (int *) xrealloc (SCREEN_INSERTN_COST (screen),
SCREEN_HEIGHT (screen) * sizeof (int)); SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_DELETE_COST (screen) SCREEN_DELETE_COST (screen) =
= (int *) xrealloc (SCREEN_DELETE_COST (screen), (int *) xrealloc (SCREEN_DELETE_COST (screen),
SCREEN_HEIGHT (screen) * sizeof (int)); SCREEN_HEIGHT (screen) * sizeof (int));
} }
else else
{ {
SCREEN_INSERT_COST (screen) SCREEN_INSERT_COST (screen) =
= (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int)); (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_DELETEN_COST (screen) SCREEN_DELETEN_COST (screen) =
= (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int)); (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_INSERTN_COST (screen) SCREEN_INSERTN_COST (screen) =
= (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int)); (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int));
SCREEN_DELETE_COST (screen) SCREEN_DELETE_COST (screen) =
= (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int)); (int *) xmalloc (SCREEN_HEIGHT (screen) * sizeof (int));
} }
ins_del_costs (screen, ins_del_costs (screen,