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Fix an off-by-one error for the scroll limit

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Kovid Goyal
2016-12-02 18:20:14 +05:30
parent 9745b23607
commit 49eb692a03
1 changed files with 2 additions and 2 deletions
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4
kitty/char_grid.py
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@@ -234,7 +234,7 @@ class CharGrid:
amt = {'line': 1, 'page': self.screen.lines - 1, 'full': self.screen.historybuf.count}[amt]
if not upwards:
amt *= -1
y = max(0, min(self.scrolled_by + amt, self.screen.historybuf.count))
y = max(0, min(self.scrolled_by + amt, self.screen.historybuf.count - 1))
if y != self.scrolled_by:
self.scrolled_by = y
self.update_cell_data()
@@ -246,7 +246,7 @@ class CharGrid:
cursor_changed, history_line_added_count = self.screen.update_cell_data(
sprites.backend, self.color_profile, addressof(self.main_sprite_map), self.default_fg, self.default_bg, force_full_refresh)
if self.scrolled_by:
self.scrolled_by = min(self.scrolled_by + history_line_added_count, self.screen.historybuf.count)
self.scrolled_by = min(self.scrolled_by + history_line_added_count, self.screen.historybuf.count - 1)
self.screen.set_scroll_cell_data(
sprites.backend, self.color_profile, addressof(self.main_sprite_map), self.default_fg, self.default_bg,
self.scrolled_by, addressof(self.scroll_sprite_map))