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.venv/Lib/site-packages/pythonwin/pywin/Demos/objdoc.py

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+# This is a sample file, and shows the basic framework for using an "Object" based
+# document, rather than a "filename" based document.
+# This is referenced by the Pythonwin .html documentation.
+
+# In the example below, the OpenObject() method is used instead of OpenDocumentFile,
+# and all the core MFC document open functionality is retained.
+
+import win32ui
+from pywin.mfc import docview
+
+
+class object_template(docview.DocTemplate):
+    def __init__(self):
+        docview.DocTemplate.__init__(self, None, None, None, object_view)
+
+    def OpenObject(self, object):  # Use this instead of OpenDocumentFile.
+        # Look for existing open document
+        for doc in self.GetDocumentList():
+            print("document is ", doc)
+            if doc.object is object:
+                doc.GetFirstView().ActivateFrame()
+                return doc
+        # not found - new one.
+        doc = object_document(self, object)
+        frame = self.CreateNewFrame(doc)
+        doc.OnNewDocument()
+        doc.SetTitle(str(object))
+        self.InitialUpdateFrame(frame, doc)
+        return doc
+
+
+class object_document(docview.Document):
+    def __init__(self, template, object):
+        docview.Document.__init__(self, template)
+        self.object = object
+
+    def OnOpenDocument(self, name):
+        raise RuntimeError("Should not be called if template strings set up correctly")
+        return 0
+
+
+class object_view(docview.EditView):
+    def OnInitialUpdate(self):
+        self.ReplaceSel("Object is %s" % repr(self.GetDocument().object))
+
+
+def demo():
+    t = object_template()
+    d = t.OpenObject(win32ui)
+    return (t, d)
+
+
+if __name__ == "__main__":
+    import demoutils
+
+    if demoutils.NeedGoodGUI():
+        demo()