this should really be using scroll_bottom

i can't seem to find an app where this makes a difference for, they seem
to go out of their way to avoid using IL/DL if scroll_bottom isn't at
the bottom of the terminal - i'm guessing terminals have been buggy
about this in the past.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/display.c b/src/display.c
index 0b57c3c..dd41344 100644
--- a/src/display.c
+++ b/src/display.c
@@ -241,7 +241,7 @@ void runes_display_insert_lines(RunesTerm *t, int count)
     cairo_pattern_set_matrix(pattern, &matrix);
     runes_display_paint_rectangle(
         t, t->cr, pattern,
-        0, t->row + count, t->cols, t->rows - t->row - count);
+        0, t->row + count, t->cols, t->scroll_bottom + 1 - t->row - count);
     cairo_pattern_destroy(pattern);
     cairo_pop_group_to_source(t->cr);
     cairo_paint(t->cr);
@@ -282,12 +282,14 @@ void runes_display_delete_lines(RunesTerm *t, int count)
     cairo_matrix_init_translate(&matrix, 0.0, count * t->fonty);
     cairo_pattern_set_matrix(pattern, &matrix);
     runes_display_paint_rectangle(
-        t, t->cr, pattern, 0, t->row, t->cols, t->rows - t->row - count);
+        t, t->cr, pattern,
+        0, t->row, t->cols, t->scroll_bottom + 1 - t->row - count);
     cairo_pattern_destroy(pattern);
     cairo_pop_group_to_source(t->cr);
     cairo_paint(t->cr);
     runes_display_paint_rectangle(
-        t, t->cr, t->bgdefault, 0, t->rows - count, t->cols, count);
+        t, t->cr, t->bgdefault,
+        0, t->scroll_bottom + 1 - count, t->cols, count);
     cairo_restore(t->cr);
 }