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grid: reflow: make sure cursor is within the visible screen area

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Even though we translate the cursor position from the old grid
coordinates to the new, the cursor may _still_ end up outside the
visible area.

Make sure it doesn’t.
This commit is contained in:
Daniel Eklöf 2020-09-09 18:40:06 +02:00
parent fc510d423b
commit a1ab31eea5
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GPG key ID: 5BBD4992C116573F
2 changed files with 5 additions and 6 deletions
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10
grid.c
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@ -331,16 +331,14 @@ grid_reflow(struct grid *grid, int new_rows, int new_cols,
cursor.row -= grid->offset;
while (cursor.row < 0)
cursor.row += grid->num_rows;
assert(cursor.row >= 0);
assert(cursor.row < grid->num_rows);
cursor.row = min(cursor.row, new_screen_rows - 1);
assert(cursor.col >= 0 && cursor.col < new_cols);
saved_cursor.row -= grid->offset;
while (saved_cursor.row < 0)
saved_cursor.row += grid->num_rows;
assert(saved_cursor.row >= 0);
assert(saved_cursor.row < grid->num_rows);
saved_cursor.row = min(saved_cursor.row, new_screen_rows - 1);
assert(saved_cursor.col >= 0 && saved_cursor.col < new_cols);
grid->cursor.point = cursor;
grid->saved_cursor.point = saved_cursor;