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, commonResolutions):
  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         self.mirror = QtGui.QRadioButton('Mirror internal screen', posBox)
  42         positions = [self.posLeft, self.posRight, self.extOnly, self.mirror]
  43         posBox.setLayout(makeLayout(QtGui.QVBoxLayout(), positions))
  44         for pos in positions:
  45             pos.toggled.connect(self.updateForm)
  46
  47         ## primary screen
  48         self.primBox = QtGui.QGroupBox('Which should be the primary screen?', self)
  49         self.primExt = QtGui.QRadioButton('The external screen', self.primBox)
  50         self.primInt = QtGui.QRadioButton('The internal screen', self.primBox)
  51         self.primInt.setChecked(True)
  52         self.primBox.setLayout(makeLayout(QtGui.QVBoxLayout(), [self.primExt, self.primInt]))
  53
  54         ## resolution selection
  55         resBox = QtGui.QGroupBox('Screen resolutions', self)
  56         # external screen
  57         self.extResLabel = QtGui.QLabel('Resolution of external screen:', resBox)
  58         self.extResolutions = externalResolutions
  59         self.extResolutionsBox = QtGui.QComboBox(resBox)
  60         for res in externalResolutions:
  61             self.extResolutionsBox.addItem(res2user(res))
  62         self.extResolutionsBox.setCurrentIndex(0) # select first resolution
  63         self.extRow = makeLayout(QtGui.QHBoxLayout(), [self.extResLabel, self.extResolutionsBox])
  64         # internal screen
  65         self.intResLabel = QtGui.QLabel('Resolution of internal screen:', resBox)
  66         self.intResolutions = internalResolutions
  67         self.intResolutionsBox = QtGui.QComboBox(resBox)
  68         for res in internalResolutions:
  69             self.intResolutionsBox.addItem(res2user(res))
  70         self.intResolutionsBox.setCurrentIndex(0) # select first resolution
  71         self.intRow = makeLayout(QtGui.QHBoxLayout(), [self.intResLabel, self.intResolutionsBox])
  72         # both screens
  73         self.mirrorResLabel = QtGui.QLabel('Resolution of both screens:', resBox)
  74         self.mirrorResolutions = commonResolutions
  75         self.mirrorResolutionsBox = QtGui.QComboBox(resBox)
  76         for res in commonResolutions:
  77             self.mirrorResolutionsBox.addItem(res2user(res))
  78         self.mirrorResolutionsBox.setCurrentIndex(0) # select first resolution
  79         self.mirrorRow = makeLayout(QtGui.QHBoxLayout(), [self.mirrorResLabel, self.mirrorResolutionsBox])
  80         # show them all
  81         resBox.setLayout(makeLayout(QtGui.QVBoxLayout(), [self.extRow, self.intRow, self.mirrorRow]))
  82
  83         # last row: buttons
  84         buttons = QtGui.QDialogButtonBox(QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel, QtCore.Qt.Horizontal, self)
  85         buttons.accepted.connect(self.accept)
  86         buttons.rejected.connect(self.reject)
  87
  88         # add them all to the window
  89         self.setLayout(makeLayout(QtGui.QVBoxLayout(), [posBox, self.primBox, resBox, buttons]))
  90
  91         # make sure we are consistent
  92         self.updateForm()
  93
  94     def updateForm(self):
  95         self.primBox.setEnabled(self.posLeft.isChecked() or self.posRight.isChecked())
  96         self.extResolutionsBox.setEnabled(not self.mirror.isChecked())
  97         self.extResLabel.setEnabled(not self.mirror.isChecked())
  98         self.intResolutionsBox.setEnabled(self.posLeft.isChecked() or self.posRight.isChecked())
  99         self.intResLabel.setEnabled(self.posLeft.isChecked() or self.posRight.isChecked())
 100         self.mirrorResolutionsBox.setEnabled(self.mirror.isChecked())
 101         self.mirrorResLabel.setEnabled(self.mirror.isChecked())
 102
 103     def run(self):
 104         self.exec_()
 105         if not self.result(): return None
 106         if self.mirror.isChecked():
 107             return ScreenSetup(RelativeScreenPosition.MIRROR,
 108                 self.mirrorResolutions[self.mirrorResolutionsBox.currentIndex()],
 109                 self.mirrorResolutions[self.mirrorResolutionsBox.currentIndex()],
 110                 extIsPrimary = True)
 111         else:
 112             return ScreenSetup(self.getRelativeScreenPosition(),
 113                 self.intResolutions[self.intResolutionsBox.currentIndex()],
 114                 self.extResolutions[self.extResolutionsBox.currentIndex()],
 115                 self.primExt.isChecked())
 116
 117     def getRelativeScreenPosition(self):
 118         if self.posLeft.isChecked():
 119             return RelativeScreenPosition.LEFT
 120         elif self.posRight.isChecked():
 121             return RelativeScreenPosition.RIGHT
 122         elif self.extOnly.isChecked():
 123             return RelativeScreenPosition.EXTERNAL_ONLY
 124         else:
 125             raise Exception("Nothing is checked?")