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authorPaul Cercueil <paul.cercueil@analog.com>2016-06-21 18:16:06 +0200
committerPaul Cercueil <paul.cercueil@analog.com>2016-06-21 18:33:05 +0200
commitfef76c211cbe6a6c7c0645c181d27635971d841b (patch)
treefc5448f5ebc5afd4945597f0711296d50b312c10 /gr-qtgui/python/qtgui/range.py
parentc76a7e0bb0765bcd1434ccda1f6626eb93904552 (diff)
gr-qtgui: Fix range.py to work with both Qt4 and Qt5
Signed-off-by: Paul Cercueil <paul.cercueil@analog.com>
Diffstat (limited to 'gr-qtgui/python/qtgui/range.py')
-rwxr-xr-xgr-qtgui/python/qtgui/range.py259
1 files changed, 0 insertions, 259 deletions
diff --git a/gr-qtgui/python/qtgui/range.py b/gr-qtgui/python/qtgui/range.py
deleted file mode 100755
index c04ef75422..0000000000
--- a/gr-qtgui/python/qtgui/range.py
+++ /dev/null
@@ -1,259 +0,0 @@
-#!/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 PyQt5 import Qt, QtCore, QtWidgets
-
-
-class Range(object):
- def __init__(self, minv, maxv, step, default, min_length):
- self.min = float(minv)
- self.max = float(maxv)
- self.step = float(step)
- self.default = float(default)
- self.min_length = min_length
- self.find_precision()
- self.find_nsteps()
-
- def find_precision(self):
- # Get the decimal part of the step
- temp = str(float(self.step) - int(self.step))[2:]
- precision = len(temp) if temp is not '0' else 0
- precision = min(precision, 13)
-
- if precision == 0 and self.max < 100:
- self.precision = 1 # Always have a decimal in this case
- else:
- self.precision = (precision + 2) if precision > 0 else 0
-
- def find_nsteps(self):
- self.nsteps = (self.max + self.step - self.min)/self.step
-
- def demap_range(self, val):
- if val > self.max:
- val = self.max
- if val < self.min:
- val = self.min
- return ((val-self.min)/self.step)
-
- def map_range(self, val):
- if val > self.nsteps:
- val = self.max
- if val < 0:
- val = 0
- return (val*self.step+self.min)
-
-
-class RangeWidget(QtWidgets.QWidget):
- def __init__(self, ranges, slot, label, style, rangeType=float):
- """ Creates the QT Range widget """
- QtWidgets.QWidget.__init__(self)
-
- self.range = ranges
- self.style = style
-
- # rangeType tells the block how to return the value as a standard
- self.rangeType = rangeType
-
- # Top-block function to call when any value changes
- # Some widgets call this directly when their value changes.
- # Others have intermediate functions to map the value into the right range.
- self.notifyChanged = slot
-
- layout = Qt.QHBoxLayout()
- label = Qt.QLabel(label)
- layout.addWidget(label)
-
- if style == "dial":
- self.d_widget = self.Dial(self, self.range, self.notifyChanged, rangeType)
- elif style == "slider":
- self.d_widget = self.Slider(self, self.range, self.notifyChanged, rangeType)
- elif style == "counter":
- # The counter widget can be directly wired to the notifyChanged slot
- self.d_widget = self.Counter(self, self.range, self.notifyChanged, rangeType)
- else:
- # The CounterSlider needs its own internal handlers before calling notifyChanged
- self.d_widget = self.CounterSlider(self, self.range, self.notifyChanged, rangeType)
-
- layout.addWidget(self.d_widget)
- self.setLayout(layout)
-
- class Dial(QtWidgets.QDial):
- """ Creates the range using a dial """
- def __init__(self, parent, ranges, slot, rangeType=float):
- QtWidgets.QDial.__init__(self, parent)
-
- self.rangeType = rangeType
-
- # Setup the dial
- self.setRange(0, ranges.nsteps-1)
- self.setSingleStep(1)
- self.setNotchesVisible(True)
- self.range = ranges
-
- # Round the initial value to the closest tick
- temp = int(round(ranges.demap_range(ranges.default), 0))
- self.setValue(temp)
-
- # Setup the slots
- self.valueChanged.connect(self.changed)
- self.notifyChanged = slot
-
- def changed(self, value):
- """ Handles maping the value to the right range before calling the slot. """
- val = self.range.map_range(value)
- self.notifyChanged(self.rangeType(val))
-
- class Slider(QtWidgets.QSlider):
- """ Creates the range using a slider """
- def __init__(self, parent, ranges, slot, rangeType=float):
- QtWidgets.QSlider.__init__(self, QtCore.Qt.Horizontal, parent)
-
- self.rangeType = rangeType
-
- # Setup the slider
- #self.setFocusPolicy(QtCore.Qt.NoFocus)
- self.setRange(0, ranges.nsteps - 1)
- self.setTickPosition(2)
- self.setSingleStep(1)
- self.range = ranges
-
- # Round the initial value to the closest tick
- temp = int(round(ranges.demap_range(ranges.default), 0))
- self.setValue(temp)
-
- if ranges.nsteps > ranges.min_length:
- interval = int(ranges.nsteps/ranges.min_length)
- self.setTickInterval(interval)
- self.setPageStep(interval)
- else:
- self.setTickInterval(1)
- self.setPageStep(1)
-
- # Setup the handler function
- self.valueChanged.connect(self.changed)
- self.notifyChanged = slot
-
- def changed(self, value):
- """ Handle the valueChanged signal and map the value into the correct range """
- val = self.range.map_range(value)
- self.notifyChanged(self.rangeType(val))
-
- def mousePressEvent(self, event):
- if((event.button() == QtCore.Qt.LeftButton)):
- new = self.minimum() + ((self.maximum()-self.minimum()) * event.x()) / self.width()
- self.setValue(new)
- event.accept()
- # Use repaint rather than calling the super mousePressEvent.
- # Calling super causes issue where slider jumps to wrong value.
- QtWidgets.QSlider.repaint(self)
-
- def mouseMoveEvent(self, event):
- new = self.minimum() + ((self.maximum()-self.minimum()) * event.x()) / self.width()
- self.setValue(new)
- event.accept()
- QtWidgets.QSlider.repaint(self)
-
- class Counter(QtWidgets.QDoubleSpinBox):
- """ Creates the range using a counter """
- def __init__(self, parent, ranges, slot, rangeType=float):
- QtWidgets.QDoubleSpinBox.__init__(self, parent)
-
- self.rangeType = rangeType
-
- # Setup the counter
- self.setRange(ranges.min, ranges.max)
- self.setValue(ranges.default)
- self.setSingleStep(ranges.step)
- self.setKeyboardTracking(False)
- self.setDecimals(ranges.precision)
-
- # The counter already handles floats and can be connected directly.
- self.valueChanged.connect(self.changed)
- self.notifyChanged = slot
-
- def changed(self, value):
- """ Handle the valueChanged signal by converting to the right type """
- self.notifyChanged(self.rangeType(value))
-
- class CounterSlider(QtWidgets.QWidget):
- """ Creates the range using a counter and slider """
- def __init__(self, parent, ranges, slot, rangeType=float):
- QtWidgets.QWidget.__init__(self, parent)
-
- self.rangeType = rangeType
-
- # Slot to call in the parent
- self.notifyChanged = slot
-
- self.slider = RangeWidget.Slider(parent, ranges, self.sliderChanged, rangeType)
- self.counter = RangeWidget.Counter(parent, ranges, self.counterChanged, rangeType)
-
- # Need another horizontal layout to wrap the other widgets.
- layout = Qt.QHBoxLayout()
- layout.addWidget(self.slider)
- layout.addWidget(self.counter)
- self.setLayout(layout)
-
- # Flag to ignore the slider event caused by a change to the counter.
- self.ignoreSlider = False
- self.range = ranges
-
- def sliderChanged(self, value):
- """ Handles changing the counter when the slider is updated """
- # If the counter was changed, ignore any of these events
- if not self.ignoreSlider:
- # Value is already float. Just set the counter
- self.counter.setValue(self.rangeType(value))
- self.notifyChanged(self.rangeType(value))
- self.ignoreSlider = False
-
- def counterChanged(self, value):
- """ Handles changing the slider when the counter is updated """
- # Get the current slider value and check to see if the new value changes it
- current = self.slider.value()
- new = int(round(self.range.demap_range(value), 0))
-
- # If it needs to change, ignore the slider event
- # Otherwise, the slider will cause the counter to round to the nearest tick
- if current != new:
- self.ignoreSlider = True
- self.slider.setValue(new)
-
- self.notifyChanged(self.rangeType(value))
-
-
-if __name__ == "__main__":
- from PyQt4 import Qt
- import sys
-
- def valueChanged(frequency):
- print("Value updated - " + str(frequency))
-
- app = Qt.QApplication(sys.argv)
- widget = RangeWidget(Range(0, 100, 10, 1, 100), valueChanged, "Test", "counter_slider", int)
-
- widget.show()
- widget.setWindowTitle("Test Qt Range")
- app.exec_()
-
- widget = None
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-22 17:49:52 +0000