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Inherit common presentationcontroller

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This commit is contained in:
Jonathan Corwin 2009-09-25 23:20:34 +01:00
parent d5a3cf705b
commit 96e3f7bce6
5 changed files with 96 additions and 65 deletions
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1
openlp/plugins/presentations/lib/__init__.py
View File

@ -24,6 +24,7 @@
import os
from presentationcontroller import PresentationController
from impresscontroller import ImpressController
if os.name == u'nt':
#from powerpointcontroller import PowerpointController

8
openlp/plugins/presentations/lib/impresscontroller.py
View File

@ -73,7 +73,7 @@ class ImpressController(object):
log.debug(u'Kill')
self.closePresentation()
def loadPresentation(self, presentation):
def load_presentation(self, presentation):
"""
Called when a presentation is added to the SlideController.
It builds the environment, starts communcations with the background
@ -137,7 +137,7 @@ class ImpressController(object):
log.exception(u'Failed to get COM desktop')
return None
def closePresentation(self):
def close_presentation(self):
"""
Close presentation and clean up objects
Triggerent by new object being added to SlideController orOpenLP
@ -178,13 +178,13 @@ class ImpressController(object):
slideNumber = property(getSlideNumber, setSlideNumber)
def nextStep(self):
def next_step(self):
"""
Triggers the next effect of slide on the running presentation
"""
self.xSlideShowController.gotoNextEffect()
def previousStep(self):
def previous_step(self):
"""
Triggers the previous slide on the running presentation
"""

8
openlp/plugins/presentations/lib/messagelistener.py
View File

@ -56,25 +56,25 @@ class MessageListener(object):
Save the handler as any new presentations start here
"""
self.handler, file = self.decodeMessage(message)
self.controllers[self.handler].loadPresentation(file)
self.controllers[self.handler].load_presentation(file)
def next(self, message):
"""
Based on the handler passed at startup triggers the next slide event
"""
self.controllers[self.handler].nextStep()
self.controllers[self.handler].next_step()
def previous(self, message):
"""
Based on the handler passed at startup triggers the previous slide event
"""
self.controllers[self.handler].previousStep()
self.controllers[self.handler].previous_step()
def shutDown(self, message):
"""
Based on the handler passed at startup triggers slide show to shut down
"""
self.controllers[self.handler].closePresentation()
self.controllers[self.handler].close_presentation()
def decodeMessage(self, message):
"""

130
openlp/plugins/presentations/lib/pptviewcontroller.py
View File

@ -22,12 +22,15 @@
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
import os
import logging
from ctypes import *
from ctypes.wintypes import RECT
class PptviewController(object):
from presentationcontroller import PresentationController
class PptviewController(PresentationController):
"""
Class to control interactions with PowerPOint Viewer Presentations
It creates the runtime Environment , Loads the and Closes the Presentation
@ -36,29 +39,34 @@ class PptviewController(object):
global log
log = logging.getLogger(u'PptviewController')
def __init__(self):
log.debug(u'Initialising')
def __init__(self, plugin):
"""
Initialise the class
"""
log.debug(u'Initialised')
PresentationController.__init__(self, plugin, u'Powerpoint Viewer')
self.process = None
self.document = None
self.presentation = None
self.pptid = None
self.startPPTView()
self.thumbnailpath = os.path.join(plugin.config.get_data_path(),
u'pptview', u'thumbnails')
self.thumbprefix = u'slide'
self.start_process()
def startPPTView(self):
def start_process(self):
"""
Loads the PPTVIEWLIB library
"""
log.debug(u'start PPTView')
self.presentation = cdll.LoadLibrary(r'openlp\plugins\presentations\lib\pptviewlib\pptviewlib.dll')
self.process = cdll.LoadLibrary(r'openlp\plugins\presentations\lib\pptviewlib\pptviewlib.dll')
def kill(self):
"""
Called at system exit to clean up any running presentations
"""
log.debug(u'Kill')
self.closePresentation()
self.close_presentation()
def loadPresentation(self, presentation):
def load_presentation(self, presentation):
"""
Called when a presentation is added to the SlideController.
It builds the environment, starts communcations with the background
@ -71,17 +79,20 @@ class PptviewController(object):
"""
log.debug(u'LoadPresentation')
if self.pptid >= 0:
self.closePresentation()
rect = RECT(0, 0, 800, 600) # until such time I can get screen info
self.close_presentation()
rendermanager = self.plugin.render_manager
#screen = rendermanager.screen_list[rendermanager.current_display]
# x? y?
rect = RECT(0, 0, rendermanager.width, rendermanager.height)
filename = str(presentation.replace(u'/', u'\\'));
try:
tempfolder = None #r'c:\temp\pptviewlib\' + filename.split('u\\')[-1]
self.pptid = self.presentation.OpenPPT(filename, None, rect, tempfolder)
self.pptid = self.process.OpenPPT(filename, None, rect,
str(self.thumbnailpath))
except:
log.exception(u'Failed to load presentation')
#self.slidecount = pptdll.GetSlideCount(self.pptid)
def closePresentation(self):
def close_presentation(self):
"""
Close presentation and clean up objects
Triggerent by new object being added to SlideController orOpenLP
@ -89,93 +100,110 @@ class PptviewController(object):
"""
if self.pptid < 0:
return
self.presentation.ClosePPT(self.pptid)
self.process.ClosePPT(self.pptid)
self.pptid = -1
def nextStep(self):
"""
Triggers the next effect of slide on the running presentation
"""
if self.pptid < 0:
return
self.presentation.NextStep(self.pptid)
def previousStep(self):
"""
Triggers the previous slide on the running presentation
"""
if self.pptid < 0:
return
self.presentation.PrevStep(self.pptid)
def isActive(self):
def is_active(self):
"""
Returns true if a presentation is currently active
"""
return self.pptid >= 0
def resume(self):
def resume_presentation(self):
"""
Resumes a previously paused presentation
"""
if self.pptid < 0:
return
self.presentation.Resume(self.pptid)
self.process.Resume(self.pptid)
def pause(self):
def pause_presentation(self):
"""
Not implemented (pauses a presentation)
"""
return
def blankScreen(self):
def blank_screen(self):
"""
Blanks the screen
"""
if self.pptid < 0:
return
self.presentation.Blank(self.pptid)
self.process.Blank(self.pptid)
def unblankScreen(self):
def unblank_screen(self):
"""
Unblanks (restores) the presentationn
"""
if self.pptid < 0:
return
self.presentation.Unblank(self.pptid)
self.process.Unblank(self.pptid)
def stop(self):
def stop_presentation(self):
"""
Stops the current presentation and hides the output
"""
if self.pptid < 0:
return
self.presentation.Stop(self.pptid)
self.process.Stop(self.pptid)
def go(self):
def start_presentation(self):
"""
Starts a presentation from the beginning
"""
if self.pptid < 0:
return
self.presentation.RestartShow(self.pptid)
self.process.RestartShow(self.pptid)
def getSlideNumber(self):
def get_slide_number(self):
"""
Returns the current slide number
"""
if self.pptid < 0:
return -1
return self.presentation.GetCurrentSlide(self.pptid)
return 0
return self.process.GetCurrentSlide(self.pptid)
def setSlideNumber(self, slideno):
def get_slide_count(self):
"""
Returns total number of slides
"""
if self.pptid < 0:
return 0
return self.process.GetSlideCount(self.pptid)
def goto_slide(self, slideno):
"""
Moves to a specific slide in the presentation
"""
if self.pptid < 0:
return
self.presentation.GotoSlide(self.pptid, slideno)
self.process.GotoSlide(self.pptid, slideno)
slideNumber = property(getSlideNumber, setSlideNumber)
def next_step(self):
"""
Triggers the next effect of slide on the running presentation
"""
if self.pptid < 0:
return
self.process.NextStep(self.pptid)
def previous_step(self):
"""
Triggers the previous slide on the running presentation
"""
if self.pptid < 0:
return
self.process.PrevStep(self.pptid)
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
"""
if self.pptid < 0:
return
return os.path.join(self.thumbnailpath,
self.thumbprefix + slide_no + u'.bmp')

14
openlp/plugins/presentations/presentationplugin.py
View File

@ -68,8 +68,8 @@ class PresentationPlugin(Plugin):
self, self.icon, u'Presentations', self.controllers)
return self.media_item
def registerControllers(self, handle, controller):
self.controllers[handle] = controller
def registerControllers(self, controller):
self.controllers[controller.name] = controller
def check_pre_conditions(self):
"""
@ -88,7 +88,8 @@ class PresentationPlugin(Plugin):
#Check to see if we have uno installed
import uno
openoffice = ImpressController()
self.registerControllers(u'Impress', openoffice)
openoffice.name = u'Impress' # until controller updated
self.registerControllers(openoffice)
except:
log.exception(u'Failed to set up plugin for Impress')
if os.name == u'nt':
@ -99,15 +100,16 @@ class PresentationPlugin(Plugin):
#Check to see if we are Win32
from win32com.client import Dispatch
powerpoint = PowerpointController()
self.registerControllers(u'Powerpoint', powerpoint)
powerpoint.name = u'Powerpoint' # until controller updated
self.registerControllers(powerpoint)
except:
log.exception(u'Failed to set up plugin for Powerpoint')
#Lets see if Powerpoint Viewer is required (Default is Not wanted)
if int(self.config.get_config(
u'Powerpoint Viewer', QtCore.Qt.Unchecked)) == QtCore.Qt.Checked:
try:
pptview = PptviewController()
self.registerControllers(u'Powerpoint Viewer', pptview)
pptview = PptviewController(self)
self.registerControllers(pptview)
except:
log.exception(u'Failed to set up plugin for Powerpoint Viewer')
#If we have no available controllers disable plugin