Center progress dialogs on update to keep from drifting due to growth

git-svn-id: http://comictagger.googlecode.com/svn/trunk@423 6c5673fe-1810-88d6-992b-cd32ca31540c

fileselectionlist.py

@@ -189,6 +189,7 @@ class FileSelectionList(QWidget):
 				break
 			progdialog.setValue(idx)
 			progdialog.setLabelText(f)
+			utils.centerWindowOnScreen( progdialog )
 			QCoreApplication.processEvents()
 			row = self.addPathItem( f )
 			if firstAdded is None and row is not None:

taggerwindow.py

@@ -392,6 +392,7 @@ class TaggerWindow( QtGui.QMainWindow):
 					progdialog.setValue(prog_idx)
 					prog_idx += 1
 					progdialog.setLabelText( ca.path )
+					utils.centerWindowOnScreen( progdialog )
 					QtCore.QCoreApplication.processEvents()
 
 					original_path = os.path.abspath( ca.path )
@@ -1392,6 +1393,7 @@ class TaggerWindow( QtGui.QMainWindow):
 						progdialog.setValue(prog_idx)
 						prog_idx += 1
 						progdialog.setLabelText( ca.path )
+						utils.centerWindowOnScreen( progdialog )
 						QtCore.QCoreApplication.processEvents()
 					
 					if ca.hasMetadata( style ) and ca.isWritable():
@@ -1468,6 +1470,7 @@ class TaggerWindow( QtGui.QMainWindow):
 						progdialog.setValue(prog_idx)
 						prog_idx += 1
 						progdialog.setLabelText( ca.path )
+						utils.centerWindowOnScreen( progdialog )
 						QtCore.QCoreApplication.processEvents()
 					
 					if ca.hasMetadata( src_style ) and ca.isWritable():
@@ -1667,6 +1670,7 @@ class TaggerWindow( QtGui.QMainWindow):
 			self.atprogdialog.progressBar.setValue( prog_idx )
 			prog_idx += 1
 			self.atprogdialog.label.setText( ca.path )
+			utils.centerWindowOnScreen( self.atprogdialog )
 			QtCore.QCoreApplication.processEvents()
 			
 			if ca.isWritable():

utils.py

@@ -532,5 +532,21 @@ if qt_available:
 		f = widget.font()
 		if f.pointSize() > 10:
 			f.setPointSize( f.pointSize() - delta )
-		widget.setFont( f )		
+		widget.setFont( f )
+		
+	def centerWindowOnScreen( window ):
+		"""
+		Center the window on screen. This implemention will handle the window
+		being resized or the screen resolution changing.
+		"""
+		# Get the current screens' dimensions...
+		screen = QtGui.QDesktopWidget().screenGeometry()
+		# ... and get this windows' dimensions
+		mysize = window.geometry()
+		# The horizontal position is calulated as screenwidth - windowwidth /2
+		hpos = ( screen.width() - window.width() ) / 2
+		# And vertical position the same, but with the height dimensions
+		vpos = ( screen.height() - window.height() ) / 2
+		# And the move call repositions the window
+		window.move(hpos, vpos)