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Fix scrolling decorator out of bounds scrolling

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Pavle Portic 2020-05-03 20:37:25 +02:00
parent fdd239d234
commit 37e23b83b9
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GPG key ID: 6758ACE46AA2A849
1 changed files with 12 additions and 10 deletions
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22
core/decorators.py
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@ -41,21 +41,23 @@ def scrollable(func):
direction = widget.get("scrolling.direction", "right") direction = widget.get("scrolling.direction", "right")
if direction == "left": if direction == "left":
scroll_speed = -scroll_speed if start - scroll_speed <= 0: # bounce back
if start + scroll_speed <= 0: # bounce back
widget.set("scrolling.direction", "right") widget.set("scrolling.direction", "right")
else:
scroll_speed *= -1
else:
if start + scroll_speed + width > len(text):
if not bounce:
start = -scroll_speed
else:
start = len(text) - width
scroll_speed *= -1
widget.set("scrolling.direction", "left")
next_start = start + scroll_speed next_start = start + scroll_speed
if next_start + width > len(text):
if not bounce:
next_start = 0
else:
next_start = start - scroll_speed
widget.set("scrolling.direction", "left")
widget.set("scrolling.start", next_start) widget.set("scrolling.start", next_start)
return text[start : start + width] return text[start:start + width]
return wrapper return wrapper