Merge pull request #14453 from mantidproject/14452_HFIR_4Circle_Reduction_too_wide

After running through the test procedures on Windows it was seen that the Dialog did not resize exactly as it does on *nix systems however, it was not ridiculously over-sized and could be resized by the user. If the current size that it automatically opens at becomes a problem for users then another issue should be written to deal with this, other than that I am happy to merge this.

scripts/HFIR_4Circle_Reduction/reduce4circleGUI.py

@@ -10,6 +10,7 @@ import csv
 import time
 
 from PyQt4 import QtCore, QtGui
+from mantidqtpython import MantidQt
 
 import reduce4circleControl as r4c
 import guiutility as gutil
@@ -38,6 +39,10 @@ class MainWindow(QtGui.QMainWindow):
         self.ui = Ui_MainWindow()
         self.ui.setupUi(self)
 
+        # Make UI scrollable
+        self._scrollbars = MantidQt.API.WidgetScrollbarDecorator(self)
+        self._scrollbars.setEnabled(True) # Must follow after setupUi(self)!
+
         # Mantid configuration
         self._instrument = str(self.ui.comboBox_instrument.currentText())
         # config = ConfigService.Instance()