87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
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"""Support for ActiveX control hosting in Pythonwin.
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"""
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import win32ui
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import win32uiole
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from . import window
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# XXX - we are still "classic style" classes in py2x, so we need can't yet
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# use 'type()' everywhere - revisit soon, as py2x will move to new-style too...
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try:
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from types import ClassType as new_type
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except ImportError:
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new_type = type # py3k
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class Control(window.Wnd):
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"""An ActiveX control base class. A new class must be derived from both
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this class and the Events class. See the demos for more details.
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"""
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def __init__(self):
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self.__dict__["_dispobj_"] = None
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window.Wnd.__init__(self)
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def _GetControlCLSID(self):
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return self.CLSID
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def _GetDispatchClass(self):
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return self.default_interface
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def _GetEventMap(self):
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return self.default_source._dispid_to_func_
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def CreateControl(self, windowTitle, style, rect, parent, id, lic_string=None):
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clsid = str(self._GetControlCLSID())
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self.__dict__["_obj_"] = win32ui.CreateControl(
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clsid, windowTitle, style, rect, parent, id, None, False, lic_string
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)
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klass = self._GetDispatchClass()
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dispobj = klass(win32uiole.GetIDispatchForWindow(self._obj_))
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self.HookOleEvents()
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self.__dict__["_dispobj_"] = dispobj
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def HookOleEvents(self):
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dict = self._GetEventMap()
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for dispid, methodName in dict.items():
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if hasattr(self, methodName):
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self._obj_.HookOleEvent(getattr(self, methodName), dispid)
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def __getattr__(self, attr):
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# Delegate attributes to the windows and the Dispatch object for this class
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try:
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return window.Wnd.__getattr__(self, attr)
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except AttributeError:
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pass
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return getattr(self._dispobj_, attr)
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def __setattr__(self, attr, value):
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if hasattr(self.__dict__, attr):
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self.__dict__[attr] = value
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return
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try:
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if self._dispobj_:
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self._dispobj_.__setattr__(attr, value)
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return
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except AttributeError:
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pass
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self.__dict__[attr] = value
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def MakeControlClass(controlClass, name=None):
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"""Given a CoClass in a generated .py file, this function will return a Class
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object which can be used as an OCX control.
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This function is used when you do not want to handle any events from the OCX
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control. If you need events, then you should derive a class from both the
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activex.Control class and the CoClass
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"""
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if name is None:
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name = controlClass.__name__
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return new_type("OCX" + name, (Control, controlClass), {})
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def MakeControlInstance(controlClass, name=None):
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"""As for MakeControlClass(), but returns an instance of the class."""
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return MakeControlClass(controlClass, name)()
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