forked from openlp/openlp
Instead of using a special PDF-player, now we present the images from PDF using the image-presentation features.
This commit is contained in:
Tomas Groth
parent
fa537260f6
commit
308d5ed5ee
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@ -244,45 +244,100 @@ class PresentationMediaItem(MediaManagerItem):
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items = self.list_view.selectedItems()
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if len(items) > 1:
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return False
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service_item.processor = self.display_type_combo_box.currentText()
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service_item.add_capability(ItemCapabilities.ProvidesOwnDisplay)
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filename = items[0].data(QtCore.Qt.UserRole)
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file_type = os.path.splitext(filename)[1][1:]
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if not self.display_type_combo_box.currentText():
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return False
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for bitem in items:
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filename = bitem.data(QtCore.Qt.UserRole)
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(path, name) = os.path.split(filename)
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service_item.title = name
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if os.path.exists(filename):
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if service_item.processor == self.Automatic:
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service_item.processor = self.findControllerByType(filename)
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if not service_item.processor:
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service_item.processor = self.display_type_combo_box.currentText()
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if context == ServiceItemContext.Live and (file_type == u'pdf' or file_type == u'xps'):
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service_item.add_capability(ItemCapabilities.CanMaintain)
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service_item.add_capability(ItemCapabilities.CanPreview)
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service_item.add_capability(ItemCapabilities.CanLoop)
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service_item.add_capability(ItemCapabilities.CanAppend)
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# force a nonexistent theme
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service_item.theme = -1
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# Why the loop when we above return False if len(items) is > 1?
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for bitem in items:
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filename = bitem.data(QtCore.Qt.UserRole)
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(path, name) = os.path.split(filename)
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service_item.title = name
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if os.path.exists(filename):
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if service_item.processor == self.Automatic:
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service_item.processor = self.findControllerByType(filename)
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if not service_item.processor:
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return False
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controller = self.controllers[service_item.processor]
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#service_item.processor = None
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doc = controller.add_document(filename)
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if doc.get_thumbnail_path(1, True) is None:
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doc.load_presentation()
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i = 1
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imagefile = u'mainslide%03d.png' % i
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img = os.path.join(doc.get_temp_folder(), imagefile)
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if os.path.isfile(img):
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while os.path.isfile(img):
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service_item.add_from_image(img, name)
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i += 1
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imagefile = u'mainslide%03d.png' % i
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img = os.path.join(doc.get_temp_folder(), imagefile)
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doc.close_presentation()
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return True
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else:
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# File is no longer present
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if not remote:
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critical_error_message_box(translate('PresentationPlugin.MediaItem', 'Missing Presentation'),
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translate('PresentationPlugin.MediaItem',
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'The presentation %s is incomplete, please reload.') % filename)
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return False
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controller = self.controllers[service_item.processor]
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doc = controller.add_document(filename)
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if doc.get_thumbnail_path(1, True) is None:
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doc.load_presentation()
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i = 1
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img = doc.get_thumbnail_path(i, True)
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if img:
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while img:
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service_item.add_from_command(path, name, img)
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i += 1
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img = doc.get_thumbnail_path(i, True)
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doc.close_presentation()
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return True
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else:
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# File is no longer present
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if not remote:
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critical_error_message_box(translate('PresentationPlugin.MediaItem', 'Missing Presentation'),
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translate('PresentationPlugin.MediaItem',
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'The presentation %s is incomplete, please reload.') % filename)
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translate('PresentationPlugin.MediaItem', 'The presentation %s no longer exists.') % filename)
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return False
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else:
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service_item.add_capability(ItemCapabilities.ProvidesOwnDisplay)
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# Why the loop when we above return False if len(items) is > 1?
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for bitem in items:
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filename = bitem.data(QtCore.Qt.UserRole)
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(path, name) = os.path.split(filename)
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service_item.title = name
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if os.path.exists(filename):
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if service_item.processor == self.Automatic:
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service_item.processor = self.findControllerByType(filename)
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if not service_item.processor:
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return False
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controller = self.controllers[service_item.processor]
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doc = controller.add_document(filename)
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if doc.get_thumbnail_path(1, True) is None:
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doc.load_presentation()
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i = 1
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img = doc.get_thumbnail_path(i, True)
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if img:
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while img:
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service_item.add_from_command(path, name, img)
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i += 1
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img = doc.get_thumbnail_path(i, True)
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doc.close_presentation()
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return True
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else:
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# File is no longer present
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if not remote:
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critical_error_message_box(translate('PresentationPlugin.MediaItem', 'Missing Presentation'),
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translate('PresentationPlugin.MediaItem',
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'The presentation %s is incomplete, please reload.') % filename)
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return False
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else:
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# File is no longer present
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if not remote:
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critical_error_message_box(translate('PresentationPlugin.MediaItem', 'Missing Presentation'),
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translate('PresentationPlugin.MediaItem', 'The presentation %s no longer exists.') % filename)
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return False
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else:
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# File is no longer present
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if not remote:
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critical_error_message_box(translate('PresentationPlugin.MediaItem', 'Missing Presentation'),
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translate('PresentationPlugin.MediaItem', 'The presentation %s no longer exists.') % filename)
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return False
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def findControllerByType(self, filename):
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"""
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@ -60,7 +60,6 @@ class PdfController(PresentationController):
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self.gsbin = u''
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if self.check_installed() and self.mudrawbin != u'':
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self.also_supports = [u'xps']
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self.viewer = None
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def check_available(self):
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"""
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@ -74,7 +73,6 @@ class PdfController(PresentationController):
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Check the viewer is installed.
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"""
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application_path = AppLocation.get_directory(AppLocation.AppDir)
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print application_path
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log.debug(u'check_installed Pdf')
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if os.name != u'nt':
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# First try to find mupdf
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@ -105,30 +103,19 @@ class PdfController(PresentationController):
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return False
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else:
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return True
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def start_process(self):
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log.debug(u'start_process pdf')
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# Setup viewer
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try:
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size = ScreenList().current[u'size']
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self.viewer = PdfViewer(size)
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except Exception as e:
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log.debug(e)
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def kill(self):
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"""
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Called at system exit to clean up any running presentations
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"""
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log.debug(u'Kill pdfviewer')
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self.viewer.close()
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while self.docs:
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self.docs[0].close_presentation()
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class PdfDocument(PresentationDocument):
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"""
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Class which holds information and controls a single presentation.
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Class which holds information of a single presentation.
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"""
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def __init__(self, controller, presentation):
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"""
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@ -142,10 +129,12 @@ class PdfDocument(PresentationDocument):
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self.image_files = []
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self.num_pages = -1
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# Only used when using ghostscript
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# Ghostscript can't scale automaticly while keeping aspect like mupdf, so we need
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# to get the ratio bewteen the screen size and the PDF to scale
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def gs_get_resolution(self, size):
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"""
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Only used when using ghostscript
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Ghostscript can't scale automaticly while keeping aspect like mupdf, so we need
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to get the ratio bewteen the screen size and the PDF to scale
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"""
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# Use a postscript script to get size of the pdf. It is assumed that all pages have same size
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postscript = u'%!PS \n\
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() = \n\
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@ -198,11 +187,11 @@ quit \n\
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log.debug(u'load_presentation pdf')
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# Check if the images has already been created, and if yes load them
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if os.path.isfile(self.get_temp_folder() + u'/mainslide001.png'):
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if os.path.isfile(os.path.join(self.get_temp_folder(), u'mainslide001.png')):
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created_files = sorted(os.listdir(self.get_temp_folder()))
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for fn in created_files:
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if os.path.isfile(self.get_temp_folder() + u'/' + fn):
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self.image_files.append(self.get_temp_folder()+ u'/' + fn)
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if os.path.isfile(os.path.join(self.get_temp_folder(), fn)):
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self.image_files.append(os.path.join(self.get_temp_folder(), fn))
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self.num_pages = len(self.image_files)
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return True
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@ -213,14 +202,14 @@ quit \n\
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if not os.path.isdir(self.get_temp_folder()):
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os.makedirs(self.get_temp_folder())
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if self.controller.mudrawbin != u'':
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runlog = check_output([self.controller.mudrawbin, u'-w', str(size.right()), u'-h', str(size.bottom()), u'-o', self.get_temp_folder() + u'/mainslide%03d.png', self.filepath])
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runlog = check_output([self.controller.mudrawbin, u'-w', str(size.right()), u'-h', str(size.bottom()), u'-o', os.path.join(self.get_temp_folder(), u'mainslide%03d.png'), self.filepath])
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elif self.controller.gsbin != u'':
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resolution = self.gs_get_resolution(size)
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runlog = check_output([self.controller.gsbin, u'-dSAFER', u'-dNOPAUSE', u'-dBATCH', u'-sDEVICE=png16m', u'-r' + str(resolution), u'-dTextAlphaBits=4', u'-dGraphicsAlphaBits=4', u'-sOutputFile=' + self.get_temp_folder() + u'/mainslide%03d.png', self.filepath])
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runlog = check_output([self.controller.gsbin, u'-dSAFER', u'-dNOPAUSE', u'-dBATCH', u'-sDEVICE=png16m', u'-r' + str(resolution), u'-dTextAlphaBits=4', u'-dGraphicsAlphaBits=4', u'-sOutputFile=' + os.path.join(self.get_temp_folder(), u'mainslide%03d.png'), self.filepath])
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created_files = sorted(os.listdir(self.get_temp_folder()))
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for fn in created_files:
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if os.path.isfile(self.get_temp_folder() + u'/' + fn):
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self.image_files.append(self.get_temp_folder()+ u'/' + fn)
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if os.path.isfile(os.path.join(self.get_temp_folder(), fn)):
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self.image_files.append(os.path.join(self.get_temp_folder(), fn))
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except Exception as e:
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log.debug(e)
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log.debug(runlog)
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@ -253,7 +242,6 @@ quit \n\
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"""
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log.debug(u'close_presentation pdf')
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self.controller.remove_doc(self)
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# TODO
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def is_loaded(self):
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"""
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@ -271,174 +259,3 @@ quit \n\
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log.debug(u'is_active pdf')
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return self.is_loaded() and not self.hidden
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def blank_screen(self):
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"""
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Blanks the screen.
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"""
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log.debug(u'blank_screen pdf')
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self.blanked = True
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self.controller.viewer.blank()
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def unblank_screen(self):
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"""
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Unblanks (restores) the presentation.
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"""
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log.debug(u'unblank_screen pdf')
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self.blanked = False
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self.controller.viewer.unblank()
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def is_blank(self):
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"""
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Returns true if screen is blank.
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"""
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log.debug(u'is blank pdf')
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return self.blanked
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def stop_presentation(self):
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"""
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Stops the current presentation and hides the output.
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"""
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log.debug(u'stop_presentation pdf')
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self.hidden = True
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self.controller.viewer.stop()
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def start_presentation(self):
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"""
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Starts a presentation from the beginning.
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"""
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log.debug(u'start_presentation pdf')
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if self.hidden:
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self.hidden = False
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self.controller.viewer.start(self.image_files)
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def get_slide_number(self):
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"""
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Return the current slide number on the screen, from 1.
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"""
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log.debug(u'get_slide_number pdf')
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return self.controller.viewer.get_current_page() + 1
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def get_slide_count(self):
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"""
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Returns total number of slides.
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"""
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log.debug(u'get_slide_count pdf')
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return self.num_pages
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def goto_slide(self, slideno):
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"""
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Moves to a specific slide in the presentation.
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"""
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log.debug(u'goto_slide pdf' + str(slideno))
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self.controller.viewer.show_page(slideno - 1)
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# TODO
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def next_step(self):
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"""
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Triggers the next effect of slide on the running presentation.
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"""
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log.debug(u'next_step pdf')
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self.controller.viewer.next_page()
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def previous_step(self):
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"""
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Triggers the previous slide on the running presentation.
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"""
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log.debug(u'previous_step pdf')
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self.controller.viewer.previous_page()
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class PdfViewer(QtGui.QWidget):
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def __init__(self, rect):
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log.debug(u'initialised pdf viewer')
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QtGui.QWidget.__init__(self, None)
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self.setWindowTitle("PDF Viewer")
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p = QtGui.QPalette()
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p.setColor(QtGui.QPalette.Background, QtCore.Qt.black);
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self.setPalette(p)
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self.setGeometry(rect) # QtGui.QApplication.desktop().screenGeometry())
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self.hide()
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self.num_pages = 0
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self.pdf_images = []
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self.image_files = []
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self.is_blanked = False
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self.current_page = 0
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def keyPressEvent(self, event):
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if event.key() == QtCore.Qt.Key_Down:
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self.next_page()
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elif event.key() == QtCore.Qt.Key_Up:
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self.previous_page()
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elif event.key() == QtCore.Qt.Key_Escape:
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self.stop()
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def paintEvent(self, event):
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if self.is_blanked:
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return
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img = self.get_image(self.current_page)
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if img is None:
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return
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x = (self.frameSize().width() - img.width()) / 2
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y = (self.frameSize().height() - img.height()) / 2
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painter = QtGui.QPainter(self)
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painter.drawImage(x, y, img, 0, 0, 0, 0)
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def display(self):
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self.update()
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self.cache_image(self.current_page + 1)
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def start(self, images):
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log.debug(u'start pdfviewer')
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self.image_files = images
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self.num_pages = len(self.image_files)
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self.pdf_images = [None for i in range(self.num_pages)]
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self.showFullScreen()
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self.show()
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def stop(self):
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log.debug(u'stop pdfviewer')
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self.hide()
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def close(self):
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log.debug(u'close pdfviewer')
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self.stop()
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self.pdf_images = None
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self.image_files = None
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def blank(self):
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self.is_blanked = True
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self.update()
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def unblank(self):
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self.is_blanked = False
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self.update()
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def next_page(self):
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if self.current_page + 1 < self.num_pages:
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self.current_page += 1
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self.display()
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def previous_page(self):
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if self.current_page > 0:
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self.current_page -= 1
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self.display()
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def show_page(self, idx):
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if idx < self.num_pages:
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self.current_page = idx
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self.display()
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def cache_image(self, idx):
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if idx >= self.num_pages:
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return
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if self.image_files[idx] is None:
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return
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img = QtGui.QImage(self.image_files[idx])
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self.pdf_images[idx] = img
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def get_image(self, idx):
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self.cache_image(idx)
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return self.pdf_images[idx]
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def get_current_page(self):
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return self.current_page
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