qt_dialogue.py

   1 # DSL - easy Display Setup for Laptops
   2 # Copyright (C) 2012 Ralf Jung <post@ralfj.de>
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17 from dsl import RelativeScreenPosition, ScreenSetup, res2user
  18 from PyQt4 import QtCore, QtGui
  19
  20 def makeLayout(layout, members):
  21     for m in members:
  22         if isinstance(m, QtGui.QLayout):
  23             layout.addLayout(m)
  24         else:
  25             layout.addWidget(m)
  26     return layout
  27
  28 class PositionSelection(QtGui.QDialog):
  29     def __init__(self, internalResolutions, externalResolutions):
  30         # set up main window
  31         super(PositionSelection, self).__init__()
  32         self.setWindowTitle('DSL - easy Display Setup for Laptops')
  33
  34         # position selection
  35         posBox = QtGui.QGroupBox('Position of external screen', self)
  36         self.posLeft = QtGui.QRadioButton('Left of internal screen', posBox)
  37         self.posRight = QtGui.QRadioButton('Right of internal screen', posBox)
  38         self.posRight.setChecked(True)
  39         self.posRight.setFocus()
  40         self.extOnly = QtGui.QRadioButton('Use external screen exclusively', posBox)
  41         posBox.setLayout(makeLayout(QtGui.QVBoxLayout(), [self.posLeft, self.posRight, self.extOnly]))
  42
  43         # primary screen
  44         primBox = QtGui.QGroupBox('Which should be the primary screen?', self)
  45         self.extOnly.toggled.connect(primBox.setDisabled) # disable the box if there's just one screen in use
  46         self.primExt = QtGui.QRadioButton('The external screen', primBox)
  47         self.primInt = QtGui.QRadioButton('The internal screen', primBox)
  48         self.primInt.setChecked(True)
  49         primBox.setLayout(makeLayout(QtGui.QVBoxLayout(), [self.primExt, self.primInt]))
  50
  51         # resolution selection
  52         resBox = QtGui.QGroupBox('Screen resolutions', self)
  53         extResLabel = QtGui.QLabel('Resolution of external screen:', resBox)
  54         self.extResolutions = externalResolutions
  55         self.extResolutionsBox = QtGui.QComboBox(resBox)
  56         for res in externalResolutions:
  57             self.extResolutionsBox.addItem(res2user(res))
  58         self.extResolutionsBox.setCurrentIndex(0) # select first resolution
  59         extRow = makeLayout(QtGui.QHBoxLayout(), [extResLabel, self.extResolutionsBox])
  60         intResLabel = QtGui.QLabel('Resolution of internal screen:', resBox)
  61         self.extOnly.toggled.connect(intResLabel.setDisabled) # disable the label if there's just one screen in use
  62         self.intResolutions = internalResolutions
  63         self.intResolutionsBox = QtGui.QComboBox(resBox)
  64         for res in internalResolutions:
  65             self.intResolutionsBox.addItem(res2user(res))
  66         self.intResolutionsBox.setCurrentIndex(0) # select first resolution
  67         self.extOnly.toggled.connect(self.intResolutionsBox.setDisabled) # disable the box if there's just one screen in use
  68         intRow = makeLayout(QtGui.QHBoxLayout(), [intResLabel, self.intResolutionsBox])
  69         resBox.setLayout(makeLayout(QtGui.QVBoxLayout(), [extRow, intRow]))
  70
  71         # last row: buttons
  72         buttons = QtGui.QDialogButtonBox(QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel, QtCore.Qt.Horizontal, self)
  73         buttons.accepted.connect(self.accept)
  74         buttons.rejected.connect(self.reject)
  75
  76         # add them all to the window
  77         self.setLayout(makeLayout(QtGui.QVBoxLayout(), [posBox, primBox, resBox, buttons]))
  78
  79     def run(self):
  80         self.exec_()
  81         if not self.result(): return None
  82         return ScreenSetup(self.getRelativeScreenPosition(),
  83             self.intResolutions[self.intResolutionsBox.currentIndex()],
  84             self.extResolutions[self.extResolutionsBox.currentIndex()],
  85             self.primExt.isChecked())
  86
  87     def getRelativeScreenPosition(self):
  88         if self.posLeft.isChecked():
  89             return RelativeScreenPosition.LEFT
  90         elif self.posRight.isChecked():
  91             return RelativeScreenPosition.RIGHT
  92         else:
  93             return RelativeScreenPosition.EXTERNAL_ONLY