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- stop the imageManager when closing OpenLP

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bzr-revno: 1980
This commit is contained in:
Andreas Preikschat 2012-06-04 12:37:46 +02:00
commit a12dc37d70
8 changed files with 85 additions and 75 deletions
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103
openlp/core/lib/imagemanager.py
View File

@ -163,143 +163,144 @@ class ImageManager(QtCore.QObject):
def __init__(self):
QtCore.QObject.__init__(self)
current_screen = ScreenList().current
self.width = current_screen[u'size'].width()
self.height = current_screen[u'size'].height()
currentScreen = ScreenList().current
self.width = currentScreen[u'size'].width()
self.height = currentScreen[u'size'].height()
self._cache = {}
self._imageThread = ImageThread(self)
self._conversion_queue = PriorityQueue()
self.imageThread = ImageThread(self)
self._conversionQueue = PriorityQueue()
self.stopManager = False
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'config_updated'), self.process_updates)
QtCore.SIGNAL(u'config_updated'), self.processUpdates)
def update_display(self):
def updateDisplay(self):
"""
Screen has changed size so rebuild the cache to new size.
"""
log.debug(u'update_display')
current_screen = ScreenList().current
self.width = current_screen[u'size'].width()
self.height = current_screen[u'size'].height()
log.debug(u'updateDisplay')
currentScreen = ScreenList().current
self.width = currentScreen[u'size'].width()
self.height = currentScreen[u'size'].height()
# Mark the images as dirty for a rebuild by setting the image and byte
# stream to None.
for image in self._cache.values():
self._reset_image(image)
self._resetImage(image)
def update_images(self, image_type, background):
def updateImages(self, imageType, background):
"""
Border has changed so update all the images affected.
"""
log.debug(u'update_images')
log.debug(u'updateImages')
# Mark the images as dirty for a rebuild by setting the image and byte
# stream to None.
for image in self._cache.values():
if image.source == image_type:
if image.source == imageType:
image.background = background
self._reset_image(image)
self._resetImage(image)
def update_image(self, name, image_type, background):
def updateImage(self, name, imageType, background):
"""
Border has changed so update the image affected.
"""
log.debug(u'update_images')
log.debug(u'updateImage')
# Mark the images as dirty for a rebuild by setting the image and byte
# stream to None.
for image in self._cache.values():
if image.source == image_type and image.name == name:
if image.source == imageType and image.name == name:
image.background = background
self._reset_image(image)
self._resetImage(image)
def _reset_image(self, image):
def _resetImage(self, image):
image.image = None
image.image_bytes = None
self._conversion_queue.modify_priority(image, Priority.Normal)
self._conversionQueue.modify_priority(image, Priority.Normal)
def process_updates(self):
def processUpdates(self):
"""
Flush the queue to updated any data to update
"""
# We want only one thread.
if not self._imageThread.isRunning():
self._imageThread.start()
if not self.imageThread.isRunning():
self.imageThread.start()
def get_image(self, name):
def getImage(self, name):
"""
Return the ``QImage`` from the cache. If not present wait for the
background thread to process it.
"""
log.debug(u'get_image %s' % name)
log.debug(u'getImage %s' % name)
image = self._cache[name]
if image.image is None:
self._conversion_queue.modify_priority(image, Priority.High)
self._conversionQueue.modify_priority(image, Priority.High)
# make sure we are running and if not give it a kick
self.process_updates()
self.processUpdates()
while image.image is None:
log.debug(u'get_image - waiting')
log.debug(u'getImage - waiting')
time.sleep(0.1)
elif image.image_bytes is None:
# Set the priority to Low, because the image was requested but the
# byte stream was not generated yet. However, we only need to do
# this, when the image was generated before it was requested
# (otherwise this is already taken care of).
self._conversion_queue.modify_priority(image, Priority.Low)
self._conversionQueue.modify_priority(image, Priority.Low)
return image.image
def get_image_bytes(self, name):
def getImageBytes(self, name):
"""
Returns the byte string for an image. If not present wait for the
background thread to process it.
"""
log.debug(u'get_image_bytes %s' % name)
log.debug(u'getImageBytes %s' % name)
image = self._cache[name]
if image.image_bytes is None:
self._conversion_queue.modify_priority(image, Priority.Urgent)
self._conversionQueue.modify_priority(image, Priority.Urgent)
# make sure we are running and if not give it a kick
self.process_updates()
self.processUpdates()
while image.image_bytes is None:
log.debug(u'get_image_bytes - waiting')
log.debug(u'getImageBytes - waiting')
time.sleep(0.1)
return image.image_bytes
def del_image(self, name):
def deleteImage(self, name):
"""
Delete the Image from the cache.
"""
log.debug(u'del_image %s' % name)
log.debug(u'deleteImage %s' % name)
if name in self._cache:
self._conversion_queue.remove(self._cache[name])
self._conversionQueue.remove(self._cache[name])
del self._cache[name]
def add_image(self, name, path, source, background):
def addImage(self, name, path, source, background):
"""
Add image to cache if it is not already there.
"""
log.debug(u'add_image %s:%s' % (name, path))
log.debug(u'addImage %s:%s' % (name, path))
if not name in self._cache:
image = Image(name, path, source, background)
self._cache[name] = image
self._conversion_queue.put(
self._conversionQueue.put(
(image.priority, image.secondary_priority, image))
else:
log.debug(u'Image in cache %s:%s' % (name, path))
# We want only one thread.
if not self._imageThread.isRunning():
self._imageThread.start()
if not self.imageThread.isRunning():
self.imageThread.start()
def _process(self):
"""
Controls the processing called from a ``QtCore.QThread``.
"""
log.debug(u'_process - started')
while not self._conversion_queue.empty():
self._process_cache()
while not self._conversionQueue.empty() and not self.stopManager:
self._processCache()
log.debug(u'_process - ended')
def _process_cache(self):
def _processCache(self):
"""
Actually does the work.
"""
log.debug(u'_process_cache')
image = self._conversion_queue.get()[2]
log.debug(u'_processCache')
image = self._conversionQueue.get()[2]
# Generate the QImage for the image.
if image.image is None:
image.image = resize_image(image.path, self.width, self.height,
@ -307,14 +308,14 @@ class ImageManager(QtCore.QObject):
# Set the priority to Lowest and stop here as we need to process
# more important images first.
if image.priority == Priority.Normal:
self._conversion_queue.modify_priority(image, Priority.Lowest)
self._conversionQueue.modify_priority(image, Priority.Lowest)
return
# For image with high priority we set the priority to Low, as the
# byte stream might be needed earlier the byte stream of image with
# Normal priority. We stop here as we need to process more important
# images first.
elif image.priority == Priority.High:
self._conversion_queue.modify_priority(image, Priority.Low)
self._conversionQueue.modify_priority(image, Priority.Low)
return
# Generate the byte stream for the image.
if image.image_bytes is None:

4
openlp/core/lib/renderer.py
View File

@ -132,7 +132,7 @@ class Renderer(object):
"""
# if No file do not update cache
if temp_theme.background_filename:
self.imageManager.add_image(temp_theme.theme_name,
self.imageManager.addImage(temp_theme.theme_name,
temp_theme.background_filename, u'theme',
QtGui.QColor(temp_theme.background_border_color))
@ -204,7 +204,7 @@ class Renderer(object):
# make big page for theme edit dialog to get line count
serviceItem.add_from_text(u'', VERSE_FOR_LINE_COUNT)
else:
self.imageManager.del_image(theme_data.theme_name)
self.imageManager.deleteImage(theme_data.theme_name)
serviceItem.add_from_text(u'', VERSE)
serviceItem.renderer = self
serviceItem.raw_footer = FOOTER

2
openlp/core/lib/serviceitem.py
View File

@ -211,7 +211,7 @@ class ServiceItem(object):
self.image_border = background
self.service_item_type = ServiceItemType.Image
self._raw_frames.append({u'title': title, u'path': path})
self.renderer.imageManager.add_image(title, path, u'image',
self.renderer.imageManager.addImage(title, path, u'image',
self.image_border)
self._new_item()

10
openlp/core/ui/maindisplay.py
View File

@ -277,7 +277,7 @@ class MainDisplay(Display):
"""
API for replacement backgrounds so Images are added directly to cache.
"""
self.imageManager.add_image(name, path, u'image', background)
self.imageManager.addImage(name, path, u'image', background)
if hasattr(self, u'serviceItem'):
self.override[u'image'] = name
self.override[u'theme'] = self.serviceItem.themedata.theme_name
@ -297,7 +297,7 @@ class MainDisplay(Display):
The name of the image to be displayed.
"""
log.debug(u'image to display')
image = self.imageManager.get_image_bytes(name)
image = self.imageManager.getImageBytes(name)
self.controller.mediaController.video_reset(self.controller)
self.displayImage(image)
@ -382,14 +382,14 @@ class MainDisplay(Display):
else:
# replace the background
background = self.imageManager. \
get_image_bytes(self.override[u'image'])
getImageBytes(self.override[u'image'])
self.setTransparency(self.serviceItem.themedata.background_type ==
BackgroundType.to_string(BackgroundType.Transparent))
if self.serviceItem.themedata.background_filename:
self.serviceItem.bg_image_bytes = self.imageManager. \
get_image_bytes(self.serviceItem.themedata.theme_name)
getImageBytes(self.serviceItem.themedata.theme_name)
if image:
image_bytes = self.imageManager.get_image_bytes(image)
image_bytes = self.imageManager.getImageBytes(image)
else:
image_bytes = None
html = build_html(self.serviceItem, self.screen, self.isLive,

31
openlp/core/ui/mainwindow.py
View File

@ -30,6 +30,7 @@ import os
import sys
import shutil
from tempfile import gettempdir
import time
from datetime import datetime
from PyQt4 import QtCore, QtGui
@ -1121,7 +1122,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
"""
log.debug(u'screenChanged')
Receiver.send_message(u'cursor_busy')
self.imageManager.update_display()
self.imageManager.updateDisplay()
self.renderer.update_display()
self.previewController.screenSizeChanged()
self.liveController.screenSizeChanged()
@ -1140,6 +1141,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
return
# If we just did a settings import, close without saving changes.
if self.settingsImported:
self.cleanUp(False)
event.accept()
if self.serviceManagerContents.isModified():
ret = self.serviceManagerContents.saveModifiedService()
@ -1162,8 +1164,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
translate('OpenLP.MainWindow',
'Are you sure you want to close OpenLP?'),
QtGui.QMessageBox.StandardButtons(
QtGui.QMessageBox.Yes |
QtGui.QMessageBox.No),
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No),
QtGui.QMessageBox.Yes)
if ret == QtGui.QMessageBox.Yes:
self.cleanUp()
@ -1174,21 +1175,29 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
self.cleanUp()
event.accept()
def cleanUp(self):
def cleanUp(self, save_settings=True):
"""
Runs all the cleanup code before OpenLP shuts down
Runs all the cleanup code before OpenLP shuts down.
``save_settings``
Switch to prevent saving settings. Defaults to **True**.
"""
self.imageManager.stopManager = True
while self.imageManager.imageThread.isRunning():
time.sleep(0.1)
# Clean temporary files used by services
self.serviceManagerContents.cleanUp()
if QtCore.QSettings().value(u'advanced/save current plugin',
QtCore.QVariant(False)).toBool():
QtCore.QSettings().setValue(u'advanced/current media plugin',
QtCore.QVariant(self.mediaToolBox.currentIndex()))
if save_settings:
if QtCore.QSettings().value(u'advanced/save current plugin',
QtCore.QVariant(False)).toBool():
QtCore.QSettings().setValue(u'advanced/current media plugin',
QtCore.QVariant(self.mediaToolBox.currentIndex()))
# Call the cleanup method to shutdown plugins.
log.info(u'cleanup plugins')
self.pluginManager.finalise_plugins()
# Save settings
self.saveSettings()
if save_settings:
# Save settings
self.saveSettings()
# Close down the display
if self.liveController.display:
self.liveController.display.close()

4
openlp/core/ui/slidecontroller.py
View File

@ -859,8 +859,8 @@ class SlideController(Controller):
# If current slide set background to image
if framenumber == slideno:
self.serviceItem.bg_image_bytes = \
self.imageManager.get_image_bytes(frame[u'title'])
image = self.imageManager.get_image(frame[u'title'])
self.imageManager.getImageBytes(frame[u'title'])
image = self.imageManager.getImage(frame[u'title'])
label.setPixmap(QtGui.QPixmap.fromImage(image))
self.previewListWidget.setCellWidget(framenumber, 0, label)
slideHeight = width * self.parent().renderer.screen_ratio

4
openlp/core/ui/thememanager.py
View File

@ -664,9 +664,9 @@ class ThemeManager(QtGui.QWidget):
self._writeTheme(theme, image_from, image_to)
if theme.background_type == \
BackgroundType.to_string(BackgroundType.Image):
self.mainwindow.imageManager.update_image(theme.theme_name,
self.mainwindow.imageManager.updateImage(theme.theme_name,
u'theme', QtGui.QColor(theme.background_border_color))
self.mainwindow.imageManager.process_updates()
self.mainwindow.imageManager.processUpdates()
self.loadThemes()
def _writeTheme(self, theme, image_from, image_to):

2
openlp/plugins/images/imageplugin.py
View File

@ -96,4 +96,4 @@ class ImagePlugin(Plugin):
"""
background = QtGui.QColor(QtCore.QSettings().value(self.settingsSection
+ u'/background color', QtCore.QVariant(u'#000000')))
self.liveController.imageManager.update_images(u'image', background)
self.liveController.imageManager.updateImages(u'image', background)