/usr/lib/python2.7/dist-packages/PyMca/DoubleSlider.py is in pymca 4.7.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2004-2012 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# This toolkit is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# PyMca is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# PyMca; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# PyMca follows the dual licensing model of Riverbank's PyQt and cannot be
# used as a free plugin for a non-free program.
#
# Please contact the ESRF industrial unit (industry@esrf.fr) if this license
# is a problem for you.
#############################################################################*/
__author__ = "V.A. Sole - ESRF BLISS Group"
from PyMca import PyMcaQt as qt
QTVERSION = qt.qVersion()
if QTVERSION < '4.0.0':
import Qwt5
else:
from PyQt4 import Qwt5
DEBUG = 0
class DoubleSlider(qt.QWidget):
def __init__(self, parent = None, scale = False):
qt.QWidget.__init__(self, parent)
self.mainLayout = qt.QVBoxLayout(self)
self.mainLayout.setMargin(6)
self.mainLayout.setSpacing(1)
orientation = qt.Qt.Horizontal
self.minSliderContainer = MySlider(self, orientation)
self.minSlider = self.minSliderContainer.slider
if scale:
self.minSlider.setScalePosition(Qwt5.QwtSlider.BottomScale)
self.minSlider.setRange(0.0, 100.0, 0.01)
self.minSlider.setValue(0.0)
self.maxSliderContainer = MySlider(self, orientation)
self.maxSlider = self.maxSliderContainer.slider
self.maxSlider.setRange(0.0, 100.0, 0.01)
self.maxSlider.setValue(100.)
self.mainLayout.addWidget(self.maxSliderContainer)
self.mainLayout.addWidget(self.minSliderContainer)
self.connect(self.minSlider,
qt.SIGNAL("valueChanged(double)"),
self._sliderChanged)
self.connect(self.maxSlider,
qt.SIGNAL("valueChanged(double)"),
self._sliderChanged)
def __getDict(self):
ddict = {}
ddict['event'] = "doubleSliderValueChanged"
m = self.minSlider.value()
M = self.maxSlider.value()
if m > M:
ddict['max'] = m
ddict['min'] = M
else:
ddict['min'] = m
ddict['max'] = M
return ddict
def _sliderChanged(self, value):
if DEBUG:
print("DoubleSlider._sliderChanged()")
ddict = self.__getDict()
if QTVERSION < '4.0.0':
self.emit(qt.PYSIGNAL("doubleSliderValueChanged"), (ddict,))
else:
self.emit(qt.SIGNAL("doubleSliderValueChanged"), ddict)
def setMinMax(self, m, M):
self.minSlider.setValue(m)
self.maxSlider.setValue(M)
def getMinMax(self):
m = self.minSlider.value()
M = self.maxSlider.value()
if m > M:
return M, m
else:
return m, M
class MySlider(qt.QWidget):
def __init__(self, parent = None, orientation=qt.Qt.Horizontal):
qt.QWidget.__init__(self, parent)
if orientation == qt.Qt.Horizontal:
alignment = qt.Qt.AlignHCenter | qt.Qt.AlignTop
layout = qt.QHBoxLayout(self)
else:
alignment = qt.Qt.AlignVCenter | qt.Qt.AlignLeft
layout = qt.QVBoxLayout(self)
layout.setMargin(0)
layout.setSpacing(0)
self.slider = Qwt5.QwtSlider(self, orientation)
self.label = qt.QLabel("0", self)
self.label.setAlignment(alignment)
self.label.setFixedWidth(self.label.fontMetrics().width('100.99'))
layout.addWidget(self.slider)
layout.addWidget(self.label)
self.connect(self.slider,
qt.SIGNAL('valueChanged(double)'),
self.setNum)
def setNum(self, value):
self.label.setText('%s' % value)
def test():
app = qt.QApplication([])
qt.QObject.connect(app,
qt.SIGNAL("lastWindowClosed()"),
app,
qt.SLOT('quit()'))
w = DoubleSlider()
w.show()
if QTVERSION < '4.0.0':
app.exec_loop()
else:
app.exec_()
if __name__ == "__main__":
test()
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