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vt: implement reverse scrolling (terminfo 'ri')

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This currently duplicates the code paths for DAMAGE_SCROLL; there are
many similarities between the two, but also major differences...
This commit is contained in:
Daniel Eklöf 2019-06-23 17:16:52 +02:00
parent c0a9f9e6b2
commit fbf0db621c
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GPG key ID: 5BBD4992C116573F
5 changed files with 132 additions and 28 deletions
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4
grid.h
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@ -5,7 +5,8 @@
void grid_damage_update(struct grid *grid, int start, int length);
void grid_damage_erase(struct grid *grid, int start, int length);
void grid_damage_scroll(
struct grid *grid, int top_margin, int bottom_margin, int lines);
struct grid *grid, enum damage_type damage_type,
int top_margin, int bottom_margin, int lines);
void grid_erase(struct grid *grid, int start, int end);
@ -16,6 +17,7 @@ void grid_cursor_up(struct grid *grid, int count);
void grid_cursor_down(struct grid *grid, int count);
void grid_scroll(struct grid *grid, int rows);
void grid_scroll_reverse(struct grid *grid, int rows);
int grid_cursor_linear(const struct grid *grid, int row, int col);