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reduced ParamObj memory usage

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This commit is contained in:
Darren Ranalli 2007-05-15 21:38:33 +00:00
parent ee2fd9311c
commit f146e74f9c
1 changed files with 69 additions and 52 deletions
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107
direct/src/showbase/PythonUtil.py
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@ -1236,8 +1236,49 @@ class ParamObj:
self._curParamStack = []
self._priorValuesStack = []
def setterStub(param, setterFunc, self,
value):
# insert stub funcs for param setters, to handle locked params
for param in self.ParamSet.getParams():
setterName = getSetterName(param)
getterName = getSetterName(param, 'get')
# is there a setter defined?
if not hasattr(self, setterName):
# no; provide the default
def defaultSetter(self, value, param=param):
#print '%s=%s for %s' % (param, value, id(self))
setattr(self, param, value)
self.__class__.__dict__[setterName] = defaultSetter
# is there a getter defined?
if not hasattr(self, getterName):
# no; provide the default. If there is no value set, return
# the default
def defaultGetter(self, param=param,
default=self.ParamSet.getDefaultValue(param)):
return getattr(self, param, default)
self.__class__.__dict__[getterName] = defaultGetter
# have we already installed a setter stub?
origSetterName = '%s_ORIG' % (setterName,)
if not hasattr(self, origSetterName):
# move the original setter aside
origSetterFunc = getattr(self.__class__, setterName)
setattr(self.__class__, origSetterName, origSetterFunc)
"""
# if the setter is a direct member of this instance, move the setter
# aside
if setterName in self.__dict__:
self.__dict__[setterName + '_MOVED'] = self.__dict__[setterName]
setterFunc = self.__dict__[setterName]
"""
# install a setter stub that will a) call the real setter and
# then the applier, or b) call the setter and queue the
# applier, depending on whether our params are locked
"""
setattr(self, setterName, new.instancemethod(
Functor(setterStub, param, setterFunc), self, self.__class__))
"""
def setterStub(self, value, param=param, origSetterName=origSetterName):
# should we apply the value now or should we wait?
# if this obj's params are locked, we track which values have
# been set, and on unlock, we'll call the applyers for those
@ -1251,13 +1292,17 @@ class ParamObj:
priorValue = None
priorValues[param] = priorValue
self._paramsSet[param] = None
setterFunc(value)
getattr(self, origSetterName)(value)
else:
# prepare for call to getPriorValue
try:
priorValue = getSetter(self, param, 'get')()
except:
priorValue = None
self._priorValuesStack.append({
param: getSetter(self, param, 'get')()
param: priorValue,
})
setterFunc(value)
getattr(self, origSetterName)(value)
# call the applier, if there is one
applier = getattr(self, getSetterName(param, 'apply'), None)
if applier is not None:
@ -1268,48 +1313,19 @@ class ParamObj:
if hasattr(self, 'handleParamChange'):
self.handleParamChange((param,))
# insert stub funcs for param setters
for param in self.ParamSet.getParams():
setterName = getSetterName(param)
getterName = getSetterName(param, 'get')
# is there a setter defined?
if not hasattr(self, setterName):
# no; provide the default
def defaultSetter(self, value, param=param):
setattr(self, param, value)
self.__class__.__dict__[setterName] = defaultSetter
# is there a getter defined?
if not hasattr(self, getterName):
# no; provide the default. If there is no value set, return
# the default
def defaultGetter(self, param=param,
default=self.ParamSet.getDefaultValue(param)):
return getattr(self, param, default)
self.__class__.__dict__[getterName] = defaultGetter
# grab a reference to the setter
setterFunc = getattr(self, setterName)
# if the setter is a direct member of this instance, move the setter
# aside
if setterName in self.__dict__:
self.__dict__[setterName + '_MOVED'] = self.__dict__[setterName]
setterFunc = self.__dict__[setterName]
# install a setter stub that will a) call the real setter and
# then the applier, or b) call the setter and queue the
# applier, depending on whether our params are locked
setattr(self, setterName, new.instancemethod(
Functor(setterStub, param, setterFunc), self, self.__class__))
setattr(self.__class__, setterName, setterStub)
if params is not None:
params.applyTo(self)
def destroy(self):
"""
for param in self.ParamSet.getParams():
setterName = getSetterName(param)
self.__dict__[setterName].destroy()
del self.__dict__[setterName]
"""
pass
def setDefaultParams(self):
# set all the default parameters on ourself
@ -1357,8 +1373,11 @@ class ParamObj:
def __repr__(self):
argStr = ''
for param in self.ParamSet.getParams():
argStr += '%s=%s,' % (param,
repr(getSetter(self, param, 'get')()))
try:
value = getSetter(self, param, 'get')()
except:
value = '<unknown>'
argStr += '%s=%s,' % (param, repr(value))
return '%s(%s)' % (self.__class__.__name__, argStr)
if __debug__:
@ -1492,19 +1511,19 @@ class POD:
def getValue(self, name):
return getSetter(self, name, 'get')()
# CLASS METHODS
@classmethod
def getDataNames(cls):
# returns safely-mutable list of datum names
cls._compileDefaultDataSet()
return cls._DataSet.keys()
getDataNames = classmethod(getDataNames)
@classmethod
def getDefaultValue(cls, name):
cls._compileDefaultDataSet()
dv = cls._DataSet[name]
if callable(dv):
dv = dv()
return dv
getDefaultValue = classmethod(getDefaultValue)
@classmethod
def _compileDefaultDataSet(cls):
if cls.__dict__.has_key('_DataSet'):
# we've already compiled the defaults for this class
@ -1537,8 +1556,6 @@ class POD:
if c.__dict__.has_key('DataSet'):
# apply this class' default data values to our dict
cls._DataSet.update(c.DataSet)
_compileDefaultDataSet = classmethod(_compileDefaultDataSet)
# END CLASS METHODS
def __repr__(self):
argStr = ''