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Fixed mousewheel scrolling bug.

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This commit is contained in:
Mark Qvist 2021-08-27 19:56:27 +02:00
parent ef974d973e
commit 6a36786c4d
1 changed files with 5 additions and 2 deletions
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7
nomadnet/vendor/Scrollable.py vendored
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@ -211,7 +211,7 @@ class Scrollable(urwid.WidgetDecoration):
# If the cursor was moved by the most recent keypress, adjust trim_top # If the cursor was moved by the most recent keypress, adjust trim_top
# so that the new cursor position is within the displayed canvas part. # so that the new cursor position is within the displayed canvas part.
# But don't do this if the cursor is at the top/bottom edge so we can still scroll out # But don't do this if the cursor is at the top/bottom edge so we can still scroll out
if self._old_cursor_coords is not None and self._old_cursor_coords != canv.cursor: if self._old_cursor_coords is not None and self._old_cursor_coords != canv.cursor and canv.cursor != None:
self._old_cursor_coords = None self._old_cursor_coords = None
curscol, cursrow = canv.cursor curscol, cursrow = canv.cursor
if cursrow < self._trim_top: if cursrow < self._trim_top:
@ -411,7 +411,10 @@ class ScrollBar(urwid.WidgetDecoration):
if not handled and hasattr(ow, 'set_scrollpos'): if not handled and hasattr(ow, 'set_scrollpos'):
if button == 4: # scroll wheel up if button == 4: # scroll wheel up
pos = ow.get_scrollpos(ow_size) pos = ow.get_scrollpos(ow_size)
ow.set_scrollpos(pos - 1) newpos = pos - 1
if newpos < 0:
newpos = 0
ow.set_scrollpos(newpos)
return True return True
elif button == 5: # scroll wheel down elif button == 5: # scroll wheel down
pos = ow.get_scrollpos(ow_size) pos = ow.get_scrollpos(ow_size)