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Viewing changes to gui/kivy/tools/.buildozer/android/platform/python-for-android/dist/kivy/python-install/lib/python2.7/site-packages/kivy/effects/opacityscroll.py

  • Committer: Package Import Robot
  • Author(s): Tristan Seligmann
  • Date: 2016-04-04 03:02:39 UTC
  • mfrom: (1.1.10)
  • Revision ID: package-import@ubuntu.com-20160404030239-0szgkio8yryjv7c9
Tags: 2.6.3-1
http://bugs.debian.org/819517
* New upstream release.
  - Drop backported install-wizard-connect.patch.
* Add Suggests: python-zbar and update the installation hint to suggest
  apt-get instead of pip (closes: #819517).
* Bump Standards-Version to 3.9.7 (no changes).
* Update Vcs-* links.

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gui/kivy/tools/.buildozer/android/platform/python-for-android/dist/kivy/python-install/lib/python2.7/site-packages/kivy/effects/opacityscroll.py
 
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'''
 
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Opacity scroll effect
 
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=====================
 
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Based on the :class:`~kivy.effects.damped.DampedScrollEffect`, this one will
 
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also decrease the opacity of the target widget during the overscroll.
 
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'''
 
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__all__ = ('OpacityScrollEffect', )
 
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from kivy.effects.dampedscroll import DampedScrollEffect
 
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class OpacityScrollEffect(DampedScrollEffect):
 
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    '''OpacityScrollEffect class. Uses the overscroll
 
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    information to reduce the opacity of the scrollview widget. When the user
 
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    stops the drag, the opacity is set back to 1.
 
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    '''
 
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    def on_overscroll(self, *args):
 
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        if self.target_widget and self.target_widget.height != 0:
 
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            alpha = (1.0 -
 
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                     abs(self.overscroll / float(self.target_widget.height)))
 
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            self.target_widget.opacity = min(1, alpha)
 
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        self.trigger_velocity_update()