Presentations add code but leave for now - Angels fear to tread

openlp/plugins/presentations/lib/impresscontroller.py

@@ -33,6 +33,7 @@ if os.name == u'nt':
     from win32com.client import Dispatch
 else:
     import uno
+    from com.sun.star.beans import PropertyValue
 
 from PyQt4 import QtCore
 
@@ -104,19 +105,23 @@ class ImpressController(PresentationController):
         The file name of the presentatios to the run.
         """
         log.debug(u'LoadPresentation')
+        self.store_filename(presentation)
         if os.name == u'nt':
             desktop = self.get_com_desktop()
             url = u'file:///' + presentation.replace(u'\\', u'/').replace(u':', u'|').replace(u' ', u'%20')
+            thumbdir = u'file:///' + self.thumbnailpath.replace(
+                u'\\', u'/').replace(u':', u'|').replace(u' ', u'%20')
         else:
             desktop = self.get_uno_desktop()
             url = uno.systemPathToFileUrl(presentation)
+            thumbdir = uno.systemPathToFileUrl(self.thumbnailpath)
         if desktop is None:
             return
         try:
             properties = []
             properties = tuple(properties)            
-            self.document = desktop.loadComponentFromURL(
+            doc = desktop.loadComponentFromURL(url, u'_blank', 0, properties)
-                url, "_blank", 0, properties)
+            self.document = doc
             self.presentation = self.document.getPresentation()
             self.presentation.Display = self.plugin.render_manager.current_display + 1
             self.presentation.start()
@@ -124,6 +129,22 @@ class ImpressController(PresentationController):
                 desktop.getCurrentComponent().Presentation.getController()
         except:
             log.exception(u'Failed to load presentation')
+            return
+        props = []
+        if os.name == u'nt':
+            prop = self.manager.Bridge_GetStruct(u'com.sun.star.beans.PropertyValue')
+        else:
+            prop = PropertyValue()
+        prop.Name = u'FilterName'
+        prop.Value = u'impress_png_Export'
+        props.append(prop)
+        props = tuple(props)
+        pages = doc.getDrawPages()
+        for idx in range(pages.getCount()):
+            page = pages.getByIndex(idx)
+            doc.getCurrentController().setCurrentPage(page)
+            doc.storeToURL(thumbdir + u'/' + self.thumbnailprefix + 
+                unicode(idx+1) + u'.png', props)
 
     def get_uno_desktop(self):
         log.debug(u'getUNODesktop')
@@ -139,8 +160,8 @@ class ImpressController(PresentationController):
                 self.startOpenoffice()
                 loop += 1
         try:
-            smgr = ctx.ServiceManager
+            self.manager = ctx.ServiceManager
-            desktop = smgr.createInstanceWithContext(
+            desktop = self.manager.createInstanceWithContext(
                 "com.sun.star.frame.Desktop", ctx )
             return desktop
         except:
@@ -150,8 +171,10 @@ class ImpressController(PresentationController):
     def get_com_desktop(self):
         log.debug(u'getCOMDesktop')
         try:
-            smgr = self.get_com_servicemanager()
+            self.manager = self.get_com_servicemanager()
-            desktop = smgr.createInstance( "com.sun.star.frame.Desktop")
+            self.manager._FlagAsMethod(u'Bridge_GetStruct')
+            self.manager._FlagAsMethod(u'Bridge_GetValueObject')
+            desktop = self.manager.createInstance(u'com.sun.star.frame.Desktop')
             return desktop
         except:
             log.exception(u'Failed to get COM desktop')
@@ -160,7 +183,7 @@ class ImpressController(PresentationController):
     def get_com_servicemanager(self):
         log.debug(u'get_com_servicemanager')
         try:
-            return Dispatch("com.sun.star.ServiceManager")
+            return Dispatch(u'com.sun.star.ServiceManager')
         except:
             log.exception(u'Failed to get COM service manager')
             return None
@@ -224,5 +247,12 @@ class ImpressController(PresentationController):
         """
         self.controller.gotoPreviousSlide()
 
-    # def get_slide_preview_file(self, slide_no):
+    def get_slide_preview_file(self, slide_no):
+        """
+        Returns an image path containing a preview for the requested slide
 
+        ``slide_no``
+        The slide an image is required for, starting at 1
+        """
+        return os.path.join(self.thumbnailpath,
+            self.thumbnailprefix + slide_no + u'.png')

openlp/plugins/presentations/lib/powerpointcontroller.py

@@ -28,6 +28,7 @@ import logging
 if os.name == u'nt':
     from win32com.client import Dispatch
     import _winreg
+    import win32ui
 
 from presentationcontroller import PresentationController
 
@@ -102,9 +103,14 @@ class PowerpointController(PresentationController):
             ``presentation``
             The file name of the presentations to run.
             """            
-            self.filename = presentation
+            log.debug(u'LoadPresentation')
+            self.store_filename(presentation)
             self.process.Presentations.Open(presentation, False, False, True)
             self.presentation = self.process.Presentations(self.process.Presentations.Count)
+            self.presentation.Export(os.path.join(self.thumbnailpath, '')
+                                     , 'png', 600, 480)
+            # self.presentation.Slides[n].Copy()
+            # thumbnail = QClipboard.image()
             self.start_presentation()
             
         def close_presentation(self):
@@ -156,8 +162,8 @@ class PowerpointController(PresentationController):
             self.presentation.SlideShowWindow.View.GotoSlide(1)
             rendermanager = self.plugin.render_manager
             rect = rendermanager.screen_list[rendermanager.current_display][u'size']
-            dpi = 96    # This assumption is good some of the time, but not
+            #SlideShowWindow measures its size/position by points, not pixels
-                        # all, but I don't know how to get the screen DPI yet
+            dpi = win32ui.GetActiveWindow().GetDC().GetDeviceCaps(88)
             self.presentation.SlideShowWindow.Top = rect.y() * 72 / dpi
             self.presentation.SlideShowWindow.Height = rect.height() * 72 / dpi
             self.presentation.SlideShowWindow.Left = rect.x() * 72 / dpi
@@ -192,3 +198,13 @@ class PowerpointController(PresentationController):
             Triggers the previous slide on the running presentation
             """
             self.presentation.SlideShowWindow.View.Previous()
+
+        def get_slide_preview_file(self, slide_no):
+            """
+            Returns an image path containing a preview for the requested slide
+
+            ``slide_no``
+            The slide an image is required for, starting at 1
+            """
+            return os.path.join(self.thumbnailpath,
+                self.thumbnailprefix + slide_no + u'.png')

openlp/plugins/presentations/lib/pptviewcontroller.py

@@ -49,9 +49,6 @@ class PptviewController(PresentationController):
         self.process = None
         PresentationController.__init__(self, plugin, u'Powerpoint Viewer')
         self.pptid = None
-        self.thumbnailpath = os.path.join(plugin.config.get_data_path(),
-            u'pptview', u'thumbnails')
-        self.thumbprefix = u'slide'
 
     def check_available(self):
         """
@@ -105,15 +102,16 @@ class PptviewController(PresentationController):
             The file name of the presentations to run.
             """
             log.debug(u'LoadPresentation')
+            self.store_filename(presentation)
             if self.pptid >= 0:
                 self.close_presentation()
             rendermanager = self.plugin.render_manager
             rect = rendermanager.screen_list[rendermanager.current_display][u'size']
             rect = RECT(rect.x(), rect.y(), rect.right(), rect.bottom())        
-            filename = str(presentation.replace(u'/', u'\\'));
+            filepath = str(presentation.replace(u'/', u'\\'));
             try:
-                self.pptid = self.process.OpenPPT(filename, None, rect,
+                self.pptid = self.process.OpenPPT(filepath, None, rect,
-                                                  str(self.thumbnailpath))
+                    str(os.path.join(self.thumbnailpath, self.thumbnailprefix)))
             except:
                 log.exception(u'Failed to load presentation')
 
@@ -200,5 +198,5 @@ class PptviewController(PresentationController):
                 The slide an image is required for, starting at 1
             """
             return os.path.join(self.thumbnailpath,
-                self.thumbprefix + slide_no + u'.bmp')
+                self.thumbnailprefix + slide_no + u'.bmp')
 

openlp/plugins/presentations/lib/presentationcontroller.py

@@ -19,6 +19,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 """
 
 import logging
+import os
 
 from PyQt4 import QtCore
 
@@ -132,6 +133,14 @@ class PresentationController(object):
                 name, QtCore.Qt.Unchecked)) == QtCore.Qt.Checked
         else:
             self.enabled = False
+        self.thumbnailroot = os.path.join(plugin.config.get_data_path(),
+            name, u'thumbnails')
+        self.thumbnailprefix = u'slide'
+        try:
+            os.makedirs(self.thumbnailroot)
+        except:
+            pass
+            
 
     def check_available(self):
         """
@@ -159,10 +168,22 @@ class PresentationController(object):
         Loads the presentation and starts it
 
         ``presentation``
-        The file name of the presentatios to the run.
+        The file name of the presentations to the run.
         """
         pass
 
+    def store_filename(self, presentation):
+        """
+        Set properties for the filename and thumbnail paths
+        """
+        self.filepath = presentation
+        self.filename = os.path.split(presentation)[1]
+        self.thumbnailpath = os.path.join(self.thumbnailroot, self.filename)
+        try:
+            os.mkdir(self.thumbnailpath)
+        except:
+            pass
+
     def close_presentation(self):
         """
         Close presentation and clean up objects

openlp/plugins/presentations/presentationplugin.py

@@ -51,6 +51,19 @@ class PresentationPlugin(Plugin):
         Create the settings Tab
         """
         return PresentationTab(self.controllers)
+#
+#    def can_be_disabled(self):
+#        return True
+#
+#    def initialise(self):
+#        log.info(u'Presentations Initialising')
+#        Plugin.initialise(self)
+#        self.insert_toolbox_item()
+#
+#    def finalise(self):
+#        log.info(u'Plugin Finalise')
+#        Plugin.finalise(self)
+#        self.remove_toolbox_item()
 
     def get_media_manager_item(self):
         """