class OpacityFormation(InstrumentFormation):
'''
Styling attributes of solvent instrument (opacity.)
Specialize to our own <POpacityFormat>
'''
def __init__(self, parentSelector):
InstrumentFormation.__init__(self, name="Opacity", parentSelector=parentSelector)
self.instrument = OpacityInstrument()
# !!! minimum is 0.1 otherwise it dissappears and user can't access
self.styleProperties=[BaseStyleProperty("Opacity",
self.instrument.setOpacity,
self.selector,
resettableValueFactory=ResettableFloatValue,
layoutFactory=FloatStylePropertyLayout,
default=self.instrument.opacity(),
minimum=0.1, maximum=1.0),
]
def applyTo(self, morph):
'''
Unlike other InstrumentFormations, can't directly set Instrument on DocumentElement, only its value.
'''
morph.setOpacity(self.instrument.opacity())
def __init__(self, parentSelector):
InstrumentFormation.__init__(self, name="Opacity", parentSelector=parentSelector)
self.instrument = OpacityInstrument()
# !!! minimum is 0.1 otherwise it dissappears and user can't access
self.styleProperties=[BaseStyleProperty("Opacity",
self.instrument.setOpacity,
self.selector,
resettableValueFactory=ResettableFloatValue,
layoutFactory=FloatStylePropertyLayout,
default=self.instrument.opacity(),
minimum=0.1, maximum=1.0),
]