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import traceback
from DataAware import *
import uno
'''
This class is a factory for Value objects for different types of
memebers.
Other than some Value implementations classes this class contains static
type conversion methods and factory methods.
@see com.sun.star.wizards.ui.event.DataAware.Value
'''
class DataAwareFields(object):
TRUE = "true"
FALSE = "false"
'''
returns a Value Object which sets and gets values
and converting them to other types, according to the "value" argument.
@param owner
@param fieldname
@param value
@return
@throws NoSuchFieldException
'''
@classmethod
def getFieldValueFor(self, owner, fieldname, value):
try:
f = getattr(owner, fieldname)
if isinstance(f,bool):
return self.__BooleanFieldValue(fieldname, value)
elif isinstance(f,str):
return self.__ConvertedStringValue(fieldname, value)
elif isinstance(f,int):
return self.__IntFieldValue(fieldname, value)
else:
return SimpleFieldValue(f)
except AttributeError, ex:
traceback.print_exc()
return None
'''__ConvertedStringValue
an abstract implementation of DataAware.Value to access
object memebers (fields) usign reflection.
'''
class __FieldValue(DataAware.Value):
__metaclass__ = ABCMeta
def __init__(self, field_):
self.field = field_
def isAssignable(self, type_):
return self.field.getDeclaringClass().isAssignableFrom(type_)
class __BooleanFieldValue(__FieldValue):
def __init__(self, f, convertTo_):
super(type(self),self).__init__(f)
self.convertTo = convertTo_
def get(self, target):
try:
b = getattr(target, self.field)
if isinstance(self.convertTo,bool):
if b:
return True
else:
return False
elif isinstance(self.convertTo,int):
return int(b)
elif isinstance(self.convertTo,str):
return str(b)
elif self.convertTo.type == uno.Any("short",0).type:
return uno.Any("short",b)
else:
raise AttributeError("Cannot convert boolean value to given type (" + str(type(self.convertTo)) + ").");
except Exception, ex:
traceback.print_exc()
return None
def set(self, value, target):
try:
self.field.setBoolean(target, toBoolean(value))
except Exception, ex:
traceback.print_exc()
class __IntFieldValue(__FieldValue):
def __init__(self, f, convertTo_):
super(type(self),self).__init__(f)
self.convertTo = convertTo_
def get(self, target):
try:
i = getattr(target, self.field)
if isinstance(self.convertTo,bool):
if i:
return True
else:
return False
elif isinstance(self.convertTo, int):
return int(i)
elif isinstance(self.convertTo,str):
return str(i)
elif self.convertTo.type == uno.Any("short",0).type:
return uno.Any("[]short",(i,))
else:
raise AttributeError("Cannot convert int value to given type (" + str(type(self.convertTo)) + ").");
except Exception, ex:
traceback.print_exc()
#traceback.print_exc__ConvertedStringValue()
return None
def set(self, value, target):
try:
self.field.setInt(target, toDouble(value))
except Exception, ex:
traceback.print_exc()
class __ConvertedStringValue(__FieldValue):
def __init__(self, f, convertTo_):
super(type(self),self).__init__(f)
self.convertTo = convertTo_
def get(self, target):
try:
s = getattr(target, self.field)
if isinstance(self.convertTo,bool):
if s != None and not s == "" and s == "true":
return True
else:
return False
elif isinstance(self.convertTo,str):
if s == None or s == "":
pass
else:
return s
else:
raise AttributeError("Cannot convert int value to given type (" \
+ str(type(self.convertTo)) + ")." )
except Exception, ex:
traceback.print_exc()
return None
def set(self, value, target):
try:
string_aux = ""
#if value is not None or not isinstance(value,uno.Any()):
# string_aux = str(value)
self.field.set(target, string_aux)
except Exception, ex:
traceback.print_exc()
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