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add property api

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gwen 2012-09-07 16:10:52 +02:00
parent 7c19ec7689
commit 3e8d16ece6
1 changed files with 17 additions and 10 deletions
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27
tiramisu/basetype.py
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@ -24,25 +24,32 @@
class BaseType(object): class BaseType(object):
def has_properties(self): def has_properties(self):
return bool(len(self.properties)) return bool(len(self.properties))
def has_property(self, propname):
return propname in self.properties
def get_properties(self):
return self.properties
def add_property(self, propname):
if not propname in self.properties:
self.properties.append(propname)
def del_property(self, propname):
if not self.has_property(propname):
raise TypeError("option has no property " + propname)
self.properties.remove(propname)
class HiddenBaseType(BaseType): class HiddenBaseType(BaseType):
def hide(self): def hide(self):
if not 'hidden' in self.properties: self.add_property('hidden')
self.properties.append('hidden')
def show(self): def show(self):
if 'hidden' in self.properties: self.del_property('hidden')
self.properties.remove('hidden')
def _is_hidden(self): def _is_hidden(self):
# dangerous method: how an Option() can determine its status by itself ? # dangerous method: how an Option() can determine its status by itself ?
return 'hidden' in self.properties return self.has_property('hidden')
class DisabledBaseType(BaseType): class DisabledBaseType(BaseType):
def disable(self): def disable(self):
if not 'disabled' in self.properties: self.add_property('disabled')
self.properties.append('disabled')
def enable(self): def enable(self):
if 'disabled' in self.properties: self.del_property('disabled')
self.properties.remove('disabled')
def _is_disabled(self): def _is_disabled(self):
return 'disabled' in self.properties return self.has_property('disabled')