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Message #06661
[Merge] lp:~googol-hush/openlp/tweaks into lp:openlp
Andreas Preikschat has proposed merging lp:~googol-hush/openlp/tweaks into lp:openlp.
Requested reviews:
Jon Tibble (meths)
For more details, see:
https://code.launchpad.net/~googol-hush/openlp/tweaks/+merge/52112
Hello!
- added new code, to be able to detect (un)plugged screens after having OpenLP started
- added the ability to detect screen resolution changes
Note, this does not sets the new screen to the default display location, it just updates the list of available screens.
--
https://code.launchpad.net/~googol-hush/openlp/tweaks/+merge/52112
Your team OpenLP Core is subscribed to branch lp:openlp.
=== modified file 'openlp.pyw'
--- openlp.pyw 2011-02-14 21:55:38 +0000
+++ openlp.pyw 2011-03-03 18:55:19 +0000
@@ -24,7 +24,6 @@
# with this program; if not, write to the Free Software Foundation, Inc., 59 #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
-
import os
import sys
import logging
@@ -179,14 +178,8 @@
self.splash.show()
# make sure Qt really display the splash screen
self.processEvents()
- screens = ScreenList()
# Decide how many screens we have and their size
- for screen in xrange(0, self.desktop().numScreens()):
- size = self.desktop().screenGeometry(screen)
- screens.add_screen({u'number': screen,
- u'size': size,
- u'primary': (self.desktop().primaryScreen() == screen)})
- log.info(u'Screen %d found with resolution %s', screen, size)
+ screens = ScreenList(self.desktop())
# start the main app window
self.appClipboard = self.clipboard()
self.mainWindow = MainWindow(screens, app_version, self.appClipboard)
=== modified file 'openlp/core/ui/generaltab.py'
--- openlp/core/ui/generaltab.py 2011-02-25 17:05:01 +0000
+++ openlp/core/ui/generaltab.py 2011-03-03 18:55:19 +0000
@@ -234,6 +234,9 @@
QtCore.QObject.connect(self.customXValueEdit,
QtCore.SIGNAL(u'textEdited(const QString&)'),
self.onDisplayPositionChanged)
+ # Reload the tab, as the screen resolution/count may have changed.
+ QtCore.QObject.connect(Receiver.get_receiver(),
+ QtCore.SIGNAL(u'config_screen_changed'), self.load)
def retranslateUi(self):
"""
@@ -300,13 +303,9 @@
"""
settings = QtCore.QSettings()
settings.beginGroup(self.settingsSection)
- for screen in self.screens.screen_list:
- screen_name = u'%s %d' % (translate('OpenLP.GeneralTab', 'Screen'),
- screen[u'number'] + 1)
- if screen[u'primary']:
- screen_name = u'%s (%s)' % (screen_name,
- translate('OpenLP.GeneralTab', 'primary'))
- self.monitorComboBox.addItem(screen_name)
+ self.monitorComboBox.clear()
+ for screen in self.screens.get_screen_list():
+ self.monitorComboBox.addItem(screen)
self.numberEdit.setText(unicode(settings.value(
u'ccli number', QtCore.QVariant(u'')).toString()))
self.usernameEdit.setText(unicode(settings.value(
=== modified file 'openlp/core/ui/screen.py'
--- openlp/core/ui/screen.py 2011-02-24 05:47:38 +0000
+++ openlp/core/ui/screen.py 2011-03-03 18:55:19 +0000
@@ -25,11 +25,15 @@
###############################################################################
"""
The :mod:`screen` module provides management functionality for a machines'
-displays
+displays.
"""
import logging
import copy
+from PyQt4 import QtCore
+
+from openlp.core.lib import Receiver, translate
+
log = logging.getLogger(__name__)
class ScreenList(object):
@@ -38,7 +42,14 @@
"""
log.info(u'Screen loaded')
- def __init__(self):
+ def __init__(self, desktop):
+ """
+ Initialise the screen list.
+
+ ``desktop``
+ A ``QDesktopWidget`` object.
+ """
+ self.desktop = desktop
self.preview = None
self.current = None
self.override = None
@@ -48,19 +59,120 @@
self.current_display = 0
# save config display number
self.monitor_number = 0
+ self.screen_count_changed()
+ QtCore.QObject.connect(desktop,
+ QtCore.SIGNAL(u'resized(int)'), self.screen_resolution_changed)
+ QtCore.QObject.connect(desktop,
+ QtCore.SIGNAL(u'screenCountChanged(int)'),
+ self.screen_count_changed)
+
+ def screen_resolution_changed(self, number):
+ """
+ Called when the resolution of a screen has changed.
+
+ ``number``
+ The number of the screen, which size has changed.
+ """
+ log.info(u'screenResolutionChanged %d' % number)
+ for screen in self.screen_list:
+ if number == screen[u'number']:
+ newScreen = {
+ u'number': number,
+ u'size': self.desktop.screenGeometry(number),
+ u'primary': self.desktop.primaryScreen() == number
+ }
+ self.remove_screen(number)
+ self.add_screen(newScreen)
+ # The screen's default size is used, that is why we have to
+ # update the override screen.
+ if screen == self.override:
+ self.override = copy.deepcopy(newScreen)
+ self.set_override_display()
+ Receiver.send_message(u'config_screen_changed')
+ break
+
+ def screen_count_changed(self, changed_screen=-1):
+ """
+ Called when a screen has been added or removed.
+
+ ``changed_screen``
+ The screen's number which has been (un)plugged.
+ """
+ # Remove unplugged screens.
+ for screen in copy.deepcopy(self.screen_list):
+ if screen[u'number'] == self.desktop.numScreens():
+ self.remove_screen(screen[u'number'])
+ # Add new screens.
+ for number in xrange(0, self.desktop.numScreens()):
+ if not self.screen_exists(number):
+ self.add_screen({
+ u'number': number,
+ u'size': self.desktop.screenGeometry(number),
+ u'primary': (self.desktop.primaryScreen() == number)
+ })
+ # We do not want to send this message, when the method is called the
+ # first time.
+ if changed_screen != -1:
+ # Reload setting tabs to apply possible changes.
+ Receiver.send_message(u'config_screen_changed')
+
+ def get_screen_list(self):
+ """
+ Returns a list with the screens. This should only be used to display
+ available screens to the user::
+
+ [u'Screen 1 (primary)', u'Screen 2']
+ """
+ screen_list= []
+ for screen in self.screen_list:
+ screen_name = u'%s %d' % (translate('OpenLP.ScreenList', 'Screen'),
+ screen[u'number'] + 1)
+ if screen[u'primary']:
+ screen_name = u'%s (%s)' % (screen_name,
+ translate('OpenLP.ScreenList', 'primary'))
+ screen_list.append(screen_name)
+ return screen_list
def add_screen(self, screen):
"""
- Add a screen to the list of known screens
+ Add a screen to the list of known screens.
+
+ ``screen``
+ A dict with the screen properties::
+
+ {
+ u'primary': True,
+ u'number': 0,
+ u'size': PyQt4.QtCore.QRect(0, 0, 1024, 768)
+ }
"""
+ log.info(u'Screen %d found with resolution %s',
+ screen[u'number'], screen[u'size'])
if screen[u'primary']:
self.current = screen
self.screen_list.append(screen)
self.display_count += 1
+ def remove_screen(self, number):
+ """
+ Remove a screen from the list of known screens.
+
+ ``number``
+ The screen number (int).
+ """
+ log.info(u'remove_screen %d' % number)
+ for screen in self.screen_list:
+ if screen[u'number'] == number:
+ self.screen_list.remove(screen)
+ self.display_count -= 1
+ break
+
def screen_exists(self, number):
"""
- Confirms a screen is known
+ Confirms a screen is known.
+
+ ``number``
+ The screen number (int).
"""
for screen in self.screen_list:
if screen[u'number'] == number:
@@ -69,7 +181,10 @@
def set_current_display(self, number):
"""
- Set up the current screen dimensions
+ Set up the current screen dimensions.
+
+ ``number``
+ The screen number (int).
"""
log.debug(u'set_current_display %s', number)
if number + 1 > self.display_count:
@@ -86,8 +201,8 @@
def set_override_display(self):
"""
- replace the current size with the override values
- user wants to have their own screen attributes
+ Replace the current size with the override values, as the user wants to
+ have their own screen attributes.
"""
log.debug(u'set_override_display')
self.current = copy.deepcopy(self.override)
@@ -95,8 +210,8 @@
def reset_current_display(self):
"""
- replace the current values with the correct values
- user wants to use the correct screen attributes
+ Replace the current values with the correct values, as the user wants to
+ use the correct screen attributes.
"""
log.debug(u'reset_current_display')
self.set_current_display(self.current_display)
References
