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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2015 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio 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 3, or (at your option)
# any later version.
#
# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from PyQt4 import Qt, QtCore, QtGui
class Range(object):
def __init__(self, min, max, step, default):
self.min = min
self.max = max
self.step = step
self.default = default
class RangeWidget(QtGui.QWidget):
def __init__(self, range, slot, label, style):
""" Creates the QT Range widget """
QtGui.QWidget.__init__(self)
self.range = range
layout = Qt.QHBoxLayout()
label = Qt.QLabel(label)
layout.addWidget(label)
if style == "dial":
layout.addWidget(self.Dial(self, range, slot))
elif style == "slider":
layout.addWidget(self.Slider(self, range, slot))
elif style == "counter":
layout.addWidget(self.Counter(self, range, slot))
elif style == "counter_slider":
layout.addWidget(self.CounterSlider(self, range, slot))
else:
layout.addWidget(self.CounterSlider(self, range, slot))
self.setLayout(layout)
class Dial(QtGui.QDial):
""" Creates the range using a dial """
def __init__(self, parent, range, slot):
QtGui.QDial.__init__(self, parent)
self.setRange(range.min, range.max)
self.setSingleStep(range.step)
self.setNotchesVisible(True)
self.setValue(range.default)
self.valueChanged.connect(slot)
class Slider(QtGui.QSlider):
""" Creates the range using a slider """
def __init__(self, parent, range, slot):
QtGui.QSlider.__init__(self, QtCore.Qt.Horizontal, parent)
self.setFocusPolicy(QtCore.Qt.NoFocus)
self.setRange(range.min, range.max)
self.setValue(range.default)
self.setPageStep(range.step)
self.setSingleStep(range.step)
self.setTracking(False)
self.setInvertedControls(True)
self.valueChanged.connect(slot)
class Counter(QtGui.QDoubleSpinBox):
""" Creates the range using a counter """
def __init__(self, parent, range, slot):
QtGui.QDoubleSpinBox.__init__(self, parent)
self.setRange(range.min, range.max)
self.setValue(range.default)
self.setSingleStep(range.step)
self.setDecimals(0)
self.valueChanged.connect(slot)
class CounterSlider(QtGui.QWidget):
""" Creates the range using a counter and slider """
def __init__(self, parent, range, slot):
QtGui.QWidget.__init__(self, parent)
# Need another horizontal layout
layout = Qt.QHBoxLayout()
# Create a slider with the top-level widget as the parent
slider = QtGui.QSlider(QtCore.Qt.Horizontal, self)
slider.setFocusPolicy(QtCore.Qt.NoFocus)
slider.setRange(range.min, range.max)
slider.setValue(range.default)
slider.setPageStep(range.step)
slider.setSingleStep(range.step)
slider.setTracking(False)
slider.setInvertedControls(True)
layout.addWidget(slider)
# Setup the counter
counter = QtGui.QDoubleSpinBox(self)
counter.setRange(range.min, range.max)
counter.setValue(range.default)
counter.setSingleStep(range.step)
counter.setDecimals(0)
layout.addWidget(counter)
# Wire the events to each other
counter.valueChanged.connect(slider.setValue)
slider.valueChanged.connect(counter.setValue)
counter.valueChanged.connect(slot)
slider.valueChanged.connect(slot)
self.setLayout(layout)
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