Fix problems with screen blanking

bzr-revno: 843

openlp/core/ui/maindisplay.py

@@ -133,7 +133,6 @@ class MainDisplay(DisplayWidget):
         self.display_alert = QtGui.QLabel(self)
         self.display_alert.setScaledContents(True)
         self.primary = True
-        self.displayBlank = False
         self.blankFrame = None
         self.frame = None
         QtCore.QObject.connect(Receiver.get_receiver(),
@@ -280,15 +279,15 @@ class MainDisplay(DisplayWidget):
             self.display_alert.setPixmap(frame)
         self.moveToTop()
 
-    def frameView(self, frame, transition=False):
+    def frameView(self, frame, transition=False, display=True):
         """
         Called from a slide controller to display a frame
         if the alert is in progress the alert is added on top
         ``frame``
             Image frame to be rendered
         """
-        log.debug(u'frameView %d' % (self.displayBlank))
+        log.debug(u'frameView %d' % (display))
-        if not self.displayBlank:
+        if display:
             if transition:
                 if self.frame is not None:
                     self.display_text.setPixmap(
@@ -314,8 +313,7 @@ class MainDisplay(DisplayWidget):
                 self.setVisible(True)
                 self.showFullScreen()
         else:
-            self.waitingFrame = frame
+            self.storeText = QtGui.QPixmap.fromImage(frame[u'main'])
-            self.waitingFrameTrans = transition
 
 class VideoDisplay(Phonon.VideoWidget):
     """

openlp/core/ui/mainwindow.py

@@ -652,15 +652,13 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
         """
         settings = QtCore.QSettings()
         settings.beginGroup(self.generalSettingsSection)
-        if settings.value(u'screen blank', QtCore.QVariant(False)).toBool() \
+        if settings.value(u'screen blank', QtCore.QVariant(False)).toBool():
-        and settings.value(u'blank warning', QtCore.QVariant(False)).toBool():
+            self.LiveController.mainDisplaySetBackground()
-            self.LiveController.onBlankDisplay(True)
+            if settings.value(u'blank warning', QtCore.QVariant(False)).toBool():
                 QtGui.QMessageBox.question(self,
                     translate(u'MainWindow', u'OpenLP Main Display Blanked'),
                     translate(u'MainWindow',
-                     u'The Main Display has been blanked out'),
+                         u'The Main Display has been blanked out'))
-                QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.Ok),
-                QtGui.QMessageBox.Ok)
         settings.endGroup()
 
     def versionThread(self):

openlp/core/ui/slidecontroller.py

@@ -120,6 +120,7 @@ class SlideController(QtGui.QWidget):
         self.serviceItem = None
         self.Panel = QtGui.QWidget(parent.ControlSplitter)
         self.slideList = {}
+        self.canDisplay = True
         # Layout for holding panel
         self.PanelLayout = QtGui.QVBoxLayout(self.Panel)
         self.PanelLayout.setSpacing(0)
@@ -651,6 +652,12 @@ class SlideController(QtGui.QWidget):
             self.PreviewListWidget.selectRow(index)
             self.onSlideSelected()
 
+    def mainDisplaySetBackground(self):
+        """
+        Allow the main display to blank the main display at startup time
+        """
+        self.blankButton.setChecked(True)
+
     def onSlideBlank(self):
         """
         Handle the slidecontroller blank event
@@ -670,6 +677,7 @@ class SlideController(QtGui.QWidget):
         log.debug(u'onBlankDisplay %d' % checked)
         self.hideButton.setChecked(False)
         self.themeButton.setChecked(False)
+        self.canDisplay =  not checked
         QtCore.QSettings().setValue(
             self.parent.generalSettingsSection + u'/screen blank',
             QtCore.QVariant(checked))
@@ -687,6 +695,7 @@ class SlideController(QtGui.QWidget):
         log.debug(u'onThemeDisplay %d' % checked)
         self.blankButton.setChecked(False)
         self.hideButton.setChecked(False)
+        self.canDisplay = False
         if checked:
             Receiver.send_message(u'maindisplay_hide', HideMode.Theme)
             self.blankPlugin(True)
@@ -701,6 +710,7 @@ class SlideController(QtGui.QWidget):
         log.debug(u'onHideDisplay %d' % checked)
         self.blankButton.setChecked(False)
         self.themeButton.setChecked(False)
+        self.canDisplay = False
         if checked:
             Receiver.send_message(u'maindisplay_hide', HideMode.Screen)
             self.hidePlugin(True)
@@ -710,7 +720,7 @@ class SlideController(QtGui.QWidget):
 
     def blankPlugin(self, blank):
         """
-        Blank the display screen.
+        Blank the display screen within a plugin if required.
         """
         if self.serviceItem is not None:
             if blank:
@@ -770,7 +780,7 @@ class SlideController(QtGui.QWidget):
                 log.log(
                     15, u'Slide Rendering took %4s' % (time.time() - before))
                 if self.isLive:
-                    self.mainDisplay.frameView(frame, True)
+                    self.mainDisplay.frameView(frame, True, self.canDisplay)
             self.selectedRow = row
         Receiver.send_message(u'slidecontroller_%s_changed' % self.typePrefix,
             row)