+# The ActiveX module from Acrobat 7.0 has changed and it seems to now
+# require much more from the container than what our wx.activex module
+# provides.  If we try to use it via wx.activex then Acrobat crashes.
+# So instead we will use Internet Explorer (via the win32com modules
+# so we can use better dynamic dispatch) and embed the Acrobat control
+# within that.  Acrobat provides the IAcroAXDocShim COM class that is
+# accessible via the IE window's Document property after a PDF file
+# has been loaded.
+#
+# Details of the Acrobat reader methods can be found in
+# http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/iac/IACOverview.pdf
+# http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/iac/IACReference.pdf
+#
+# Co-ordinates passed as parameters are in points (1/72 inch).
+
+
+if get_acroversion() >= '7.0':
+
+    from wx.lib.activexwrapper import MakeActiveXClass
+    import win32com.client.gencache
+    _browserModule = win32com.client.gencache.EnsureModule(
+        "{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}", 0, 1, 1)
+
+    class PDFWindowError(RuntimeError):
+        def __init__(self):
+            RuntimeError.__init__(self, "A PDF must be loaded before calling this method.")
+            
+
+    class PDFWindow(wx.Panel):
+        def __init__(self, *args, **kw):
+            wx.Panel.__init__(self, *args, **kw)
+            
+            # Make a new class that derives from the WebBrowser class
+            # in the COM module imported above.  This class also
+            # derives from wxWindow and implements the machinery
+            # needed to integrate the two worlds.
+            _WebBrowserClass = MakeActiveXClass(_browserModule.WebBrowser)
+            self.ie = _WebBrowserClass(self, -1)
+            sizer = wx.BoxSizer()
+            sizer.Add(self.ie, 1, wx.EXPAND)
+            self.SetSizer(sizer)
+
+            
+        def LoadFile(self, fileName):
+            """
+            Opens and displays the specified document within the browser.
+            """
+            if self.ie.Document:
+                return self.ie.Document.LoadFile(fileName)
+            else:
+                self.ie.Navigate2(fileName)
+                return True  # can we sense failure at this point?
+            
+        def GetVersions(self):
+            """
+            Deprecated: No longer available - do not use.
+            """
+            if self.ie.Document:
+                return self.ie.Document.GetVersions()
+            else:
+                raise PDFWindowError()
+            
+        def Print(self):
+            """
+            Prints the document according to the specified options in a user dialog box.
+            """
+            if self.ie.Document:
+                return self.ie.Document.Print()
+            else:
+                raise PDFWindowError()
+            
+        def goBackwardStack(self):
+            """
+            Goes to the previous view on the view stack, if it exists.
+            """
+            if self.ie.Document:
+                return self.ie.Document.goBackwardStack()
+            else:
+                raise PDFWindowError()
+
+        def goForwardStack(self):
+            """
+            Goes to the next view on the view stack, if it exists.
+            """
+            if self.ie.Document:
+                return self.ie.Document.goForwardStack()
+            else:
+                raise PDFWindowError()
+
+        def gotoFirstPage(self):
+            """
+            Goes to the first page in the document.
+            """
+            if self.ie.Document:
+                return self.ie.Document.gotoFirstPage()
+            else:
+                raise PDFWindowError()
+
+        def gotoLastPage(self):
+            """
+            Goes to the last page in the document.
+            """
+            if self.ie.Document:
+                return self.ie.Document.gotoLastPage()
+            else:
+                raise PDFWindowError()
+
+        def gotoNextPage(self):
+            """
+            Goes to the next page in the document, if it exists
+            """
+            if self.ie.Document:
+                return self.ie.Document.gotoNextPage()
+            else:
+                raise PDFWindowError()
+
+        def gotoPreviousPage(self):
+            """
+            Goes to the previous page in the document, if it exists.
+            """
+            if self.ie.Document:
+                return self.ie.Document.gotoPreviousPage()
+            else:
+                raise PDFWindowError()
+
+        def printAll(self):
+            """
+            Prints the entire document without displaying a user
+            dialog box.  The current printer, page settings, and job
+            settings are used.  This method returns immediately, even
+            if the printing has not completed.
+            """
+            if self.ie.Document:
+                return self.ie.Document.printAll()
+            else:
+                raise PDFWindowError()
+
+        def printAllFit(self, shrinkToFit):
+            """
+            Prints the entire document without a user dialog box, and
+            (if shrinkToFit) shrinks pages as needed to fit the
+            imageable area of a page in the printer.
+            """
+            if self.ie.Document:
+                return self.ie.Document.printAllFit(shrinkToFit)
+            else:
+                raise PDFWindowError()
+
+        def printPages(self, from_, to):
+            """
+            Prints the specified pages without displaying a user dialog box.
+            """
+            if self.ie.Document:
+                return self.ie.Document.printPages(from_, to)
+            else:
+                raise PDFWindowError()
+
+        def printPagesFit(self, from_, to, shrinkToFit):
+            """
+            Prints the specified pages without displaying a user
+            dialog box, and (if shrinkToFit) shrinks pages as needed
+            to fit the imageable area of a page in the printer.
+            """
+            if self.ie.Document:
+                return self.ie.Document.printPagesFit( from_, to, shrinkToFit)
+            else:
+                raise PDFWindowError()
+
+        def printWithDialog(self):
+            """
+            Prints the document according to the specified options in
+            a user dialog box. These options may include embedded
+            printing and specifying which printer is to be used.
+            
+            NB. The page range in the dialog defaults to
+            'From Page 1 to 1' - Use Print() above instead. (dfh) 
+            """
+            if self.ie.Document:
+                return self.ie.Document.printWithDialog()
+            else:
+                raise PDFWindowError()
+
+        def setCurrentHighlight(self, a, b, c, d):
+            if self.ie.Document:
+                return self.ie.Document.setCurrentHighlight(a, b, c, d)
+            else:
+                raise PDFWindowError()
+
+        def setCurrentPage(self, npage):
+            """
+            Goes to the specified page in the document.  Maintains the
+            current location within the page and zoom level.  npage is
+            the page number of the destination page.  The first page
+            in a document is page 0.
+            
+            ## Oh no it isn't! The first page is 1 (dfh)
+            """
+            if self.ie.Document:
+                return self.ie.Document.setCurrentPage(npage)
+            else:
+                raise PDFWindowError()
+
+        def setLayoutMode(self, layoutMode):
+            """
+            LayoutMode possible values:
+            
+                =================  ====================================
+                'DontCare'         use the current user preference
+                'SinglePage'       use single page mode (as in pre-Acrobat
+                                   3.0 viewers)
+                'OneColumn'        use one-column continuous mode
+                'TwoColumnLeft'    use two-column continuous mode, first
+                                   page on the left
+                'TwoColumnRight'   use two-column continuous mode, first
+                                   page on the right
+                =================  ====================================
+            """
+            if self.ie.Document:
+                return self.ie.Document.setLayoutMode(layoutMode)
+            else:
+                raise PDFWindowError()
+
+        def setNamedDest(self, namedDest):
+            """
+            Changes the page view to the named destination in the specified string.
+            """
+            if self.ie.Document:
+                return self.ie.Document.setNamedDest(namedDest)
+            else:
+                raise PDFWindowError()
+
+        def setPageMode(self, pageMode):
+            """
+            Sets the page mode to display the document only, or to
+            additionally display bookmarks or thumbnails.  pageMode =
+            'none' or 'bookmarks' or 'thumbs'.
+            
+            ## NB.'thumbs' is case-sensitive, the other are not (dfh)
+            """   
+            if self.ie.Document:
+                return self.ie.Document.setPageMode(pageMode)
+            else:
+                raise PDFWindowError()
+
+        def setShowScrollbars(self, On):
+            """
+            Determines whether scrollbars will appear in the document
+            view.
+
+            ## NB. If scrollbars are off, the navigation tools disappear as well (dfh)
+            """
+            if self.ie.Document:
+                return self.ie.Document.setShowScrollbars(On)
+            else:
+                raise PDFWindowError()
+
+        def setShowToolbar(self, On):
+            """
+            Determines whether a toolbar will appear in the application.
+            """
+            if self.ie.Document:
+                return self.ie.Document.setShowToolbar(On)
+            else:
+                raise PDFWindowError()
+
+        def setView(self, viewMode):
+            """
+            Determines how the page will fit in the current view.
+            viewMode possible values:
+
+                ========  ==============================================
+                'Fit'     fits whole page within the window both vertically
+                          and horizontally.
+                'FitH'    fits the width of the page within the window.
+                'FitV'    fits the height of the page within the window.
+                'FitB'    fits bounding box within the window both vertically
+                          and horizontally.
+                'FitBH'   fits the width of the bounding box within the window.
+                'FitBV'   fits the height of the bounding box within the window.
+                ========  ==============================================
+            """
+            if self.ie.Document:
+                return self.ie.Document.setView(viewMode)
+            else:
+                raise PDFWindowError()
+
+        def setViewRect(self, left, top, width, height):
+            """
+            Sets the view rectangle according to the specified coordinates.
+
+            :param left:   The upper left horizontal coordinate.
+            :param top:    The vertical coordinate in the upper left corner.
+            :param width:  The horizontal width of the rectangle.
+            :param height: The vertical height of the rectangle.
+            """
+            if self.ie.Document:
+                return self.ie.Document.setViewRect(left, top, width, height)
+            else:
+                raise PDFWindowError()
+
+        def setViewScroll(self, viewMode, offset):
+            """
+            Sets the view of a page according to the specified string.
+            Depending on the view mode, the page is either scrolled to
+            the right or scrolled down by the amount specified in
+            offset. Possible values of viewMode are as in setView
+            above. offset is the horizontal or vertical coordinate
+            positioned either at the left or top edge.
+            """    
+            if self.ie.Document:
+                return self.ie.Document.setViewScroll(viewMode, offset)
+            else:
+                raise PDFWindowError()
+
+        def setZoom(self, percent):
+            """
+            Sets the magnification according to the specified value
+            expressed as a percentage (float)
+            """
+            if self.ie.Document:
+                return self.ie.Document.setZoom(percent)
+            else:
+                raise PDFWindowError()
+
+        def setZoomScroll(self, percent, left, top):
+            """
+            Sets the magnification according to the specified value,
+            and scrolls the page view both horizontally and vertically
+            according to the specified amounts.
+            
+            :param left:  the horizontal coordinate positioned at the left edge.
+            :param top:   the vertical coordinate positioned at the top edge.
+            """
+            if self.ie.Document:
+                return self.ie.Document.setZoomScroll(percent, left, top)
+            else:
+                raise PDFWindowError()