wxPython/wx/lib/activexwrapper.py

   1 #----------------------------------------------------------------------
   2 # Name:        wxPython.lib.activexwrapper
   3 # Purpose:     a wxWindow derived class that can hold an ActiveX control
   4 #
   5 # Author:      Robin Dunn
   6 #
   7 # RCS-ID:      $Id$
   8 # Copyright:   (c) 2000 by Total Control Software
   9 # Licence:     wxWindows license
  10 #----------------------------------------------------------------------
  11 # 11/30/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  12 #
  13 # o Updated for wx namespace
  14 # o Tested with updated demo
  15 #
  16
  17 import  wx
  18
  19 try:
  20     import win32ui
  21     import pywin.mfc.activex
  22     import win32com.client
  23 except ImportError:
  24     raise ImportError( "ActiveXWrapper requires PythonWin.  Please install the win32all-xxx.exe package.")
  25
  26 ##from win32con import WS_TABSTOP, WS_VISIBLE
  27 WS_TABSTOP = 0x00010000
  28 WS_VISIBLE = 0x10000000
  29
  30 #----------------------------------------------------------------------
  31
  32
  33 def MakeActiveXClass(CoClass, eventClass=None, eventObj=None):
  34     """
  35     Dynamically construct a new class that derives from wxWindow, the
  36     ActiveX control and the appropriate COM classes.  This new class
  37     can be used just like the wxWindow class, but will also respond
  38     appropriately to the methods and properties of the COM object.  If
  39     this class, a derived class or a mix-in class has method names
  40     that match the COM object's event names, they will be called
  41     automatically.
  42
  43     CoClass -- A COM control class from a module generated by
  44             makepy.py from a COM TypeLibrary.  Can also accept a
  45             CLSID.
  46
  47     eventClass -- If given, this class will be added to the set of
  48             base classes that the new class is drived from.  It is
  49             good for mix-in classes for catching events.
  50
  51     eventObj -- If given, this object will be searched for attributes
  52             by the new class's __getattr__ method, (like a mix-in
  53             object.)  This is useful if you want to catch COM
  54             callbacks in an existing object, (such as the parent
  55             window.)
  56
  57     """
  58
  59
  60     if type(CoClass) == type(""):
  61         # use the CLSID to get the real class
  62         CoClass = win32com.client.CLSIDToClass(CoClass)
  63
  64     # determine the base classes
  65     axEventClass = CoClass.default_source
  66     baseClasses = [pywin.mfc.activex.Control, wx.Window, CoClass, axEventClass]
  67     if eventClass:
  68         baseClasses.append(eventClass)
  69     baseClasses = tuple(baseClasses)
  70
  71     # define the class attributes
  72     className = 'AXControl_'+CoClass.__name__
  73     classDict = { '__init__'    : axw__init__,
  74                   '__getattr__' : axw__getattr__,
  75                   'axw_OnSize'  : axw_OnSize,
  76                   'axw_OEB'     : axw_OEB,
  77                   '_name'       : className,
  78                   '_eventBase'  : axEventClass,
  79                   '_eventObj'   : eventObj,
  80                   'Cleanup'     : axw_Cleanup,
  81                   }
  82
  83     # make a new class object
  84     import new
  85     classObj = new.classobj(className, baseClasses, classDict)
  86     return classObj
  87
  88
  89
  90
  91 # These functions will be used as methods in the new class
  92 def axw__init__(self, parent, ID, pos=wx.DefaultPosition, size=wx.DefaultSize, style=0):
  93
  94     # init base classes
  95     pywin.mfc.activex.Control.__init__(self)
  96     wx.Window.__init__( self, parent, -1, pos, size, style|wx.NO_FULL_REPAINT_ON_RESIZE)
  97
  98     win32ui.EnableControlContainer()
  99     self._eventObj = self._eventObj  # move from class to instance
 100
 101     # create a pythonwin wrapper around this wxWindow
 102     handle = self.GetHandle()
 103     self._wnd = win32ui.CreateWindowFromHandle(handle)
 104
 105     # create the control
 106     sz = self.GetSize()
 107     self.CreateControl(self._name, WS_TABSTOP | WS_VISIBLE,
 108                        (0, 0, sz.width, sz.height), self._wnd, ID)
 109
 110     # init the ax events part of the object
 111     self._eventBase.__init__(self, self._dispobj_)
 112
 113     # hook some wx events
 114     self.Bind(wx.EVT_SIZE, self.axw_OnSize)
 115
 116
 117 def axw__getattr__(self, attr):
 118     try:
 119         return pywin.mfc.activex.Control.__getattr__(self, attr)
 120     except AttributeError:
 121         try:
 122             eo = self.__dict__['_eventObj']
 123             return getattr(eo, attr)
 124         except AttributeError:
 125             raise AttributeError('Attribute not found: %s' % attr)
 126
 127
 128 def axw_OnSize(self, event):
 129     sz = self.GetClientSize()                        # get wxWindow size
 130     self.MoveWindow((0, 0, sz.width, sz.height), 1)  # move the AXControl
 131
 132
 133 def axw_OEB(self, event):
 134     pass
 135
 136
 137 def axw_Cleanup(self):
 138     del self._wnd
 139     self.close()
 140     pass
 141
 142
 143
 144
 145