#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2020 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr
import pmt
from PyQt5.QtWidgets import QFrame, QHBoxLayout, QVBoxLayout, QLabel
from PyQt5.QtGui import QPainter, QBrush, QColor, QPen, QFontMetricsF
from PyQt5.QtCore import Qt as Qtc
from PyQt5.QtCore import QRect
class LabeledToggleSwitch(QFrame):
# Positions: 1 = above, 2=below, 3=left, 4=right
def __init__(self, lbl='', onColor='green', offColor='red', initialState=False,
maxSize=50, position=1, parent=None, callback=None, alignment=1, valignment=1):
QFrame.__init__(self, parent)
self.numberControl = ToggleSwitch(onColor, offColor, initialState, maxSize,
parent, callback)
if position < 3:
layout = QVBoxLayout()
else:
layout = QHBoxLayout()
self.lbl = lbl
self.lblcontrol = QLabel(lbl, self)
if position == 3: # left of switch
self.lblcontrol.setAlignment(Qtc.AlignRight)
elif position == 4: # right of switch
self.lblcontrol.setAlignment(Qtc.AlignLeft)
else:
# Above or below
self.lblcontrol.setAlignment(Qtc.AlignCenter)
# add top or left
if len:
if position == 1 or position == 3:
layout.addWidget(self.lblcontrol)
layout.addWidget(self.numberControl)
# Add bottom or right
if len:
if position == 2 or position == 4:
layout.addWidget(self.lblcontrol)
if alignment == 1:
halign = Qtc.AlignCenter
elif alignment == 2:
halign = Qtc.AlignLeft
else:
halign = Qtc.AlignRight
if valignment == 1:
valign = Qtc.AlignVCenter
elif valignment == 2:
valign = Qtc.AlignTop
else:
valign = Qtc.AlignBottom
layout.setAlignment(halign | valign)
self.setLayout(layout)
textfont = self.lblcontrol.font()
metrics = QFontMetricsF(textfont)
maxWidth = max((maxSize+4), (maxSize*2 + metrics.width(lbl)))
maxHeight = max((maxSize/2+4), (maxSize/2 + metrics.height()+2))
self.setMinimumSize(int(maxWidth), int(maxHeight))
self.show()
def setState(self, on_off):
self.numberControl.setState(on_off)
class ToggleSwitch(QFrame):
def __init__(self, onColor='green', offColor='red', initialState=False, maxSize=50,
parent=None, callback=None):
QFrame.__init__(self, parent)
self.maxSize = maxSize
self.curState = initialState
self.onColor = QColor(onColor)
self.offColor = QColor(offColor)
self.callback = callback
self.setMinimumSize(maxSize, maxSize/2)
self.setMaximumSize(maxSize, maxSize/2)
def setState(self, on_off):
self.curState = on_off
if self.callback is not None:
self.callback(on_off)
super().update()
def paintEvent(self, event):
super().paintEvent(event)
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
size = self.size()
brush = QBrush()
center_x = size.width()/2
if self.curState:
brush.setColor(self.onColor)
painter.setPen(QPen(self.onColor, 0))
else:
brush.setColor(self.offColor)
painter.setPen(QPen(self.offColor, 0))
brush.setStyle(Qtc.SolidPattern)
painter.setBrush(brush)
# Draw the switch background
centerRect = QRect(size.width()/4, 0, size.width()/2-4, size.height())
painter.drawRect(centerRect)
painter.drawEllipse(0, 0, size.height(), size.height())
painter.drawEllipse(size.width()/2, 0, size.height(), size.height())
# Draw the switch itself
brush.setColor(QColor('white'))
painter.setBrush(brush)
painter.setPen(QPen(QColor('white'), 0))
if self.curState:
painter.drawEllipse(2, 2, size.height() - 4, size.height() - 4)
else:
painter.drawEllipse(center_x+2, 2, size.height() - 4, size.height() - 4)
def mousePressEvent(self, event):
if event.x() <= self.size().width()/2:
self.setState(True)
else:
self.setState(False)
super().update()
class GrToggleSwitch(gr.sync_block, LabeledToggleSwitch):
"""
This block creates a modern toggle switch. The variable will take
on one value or the other as set in the dialog. This button will
also produce a state message matching the set values.
"""
def __init__(self, callback, lbl, pressedReleasedDict, initialState=False,
onColor='green', offColor='silver', position=3, maxSize=50,
alignment=1, valignment=1, parent=None, outputmsgname='value'):
gr.sync_block.__init__(self, name="ToggleSwitch", in_sig=None, out_sig=None)
LabeledToggleSwitch.__init__(self, lbl, onColor, offColor, initialState,
maxSize, position, parent, self.notifyUpdate,
alignment, valignment)
self.outputmsgname = outputmsgname
self.pressReleasedDict = pressedReleasedDict
self.callback = callback
self.message_port_register_out(pmt.intern("state"))
def notifyUpdate(self, new_val):
if self.callback is not None:
if new_val:
self.callback(self.pressReleasedDict['Pressed'])
else:
self.callback(self.pressReleasedDict['Released'])
if new_val:
if type(self.pressReleasedDict['Pressed']) == bool:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_bool(self.pressReleasedDict['Pressed'])))
elif type(self.pressReleasedDict['Pressed']) == int:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_long(self.pressReleasedDict['Pressed'])))
elif type(self.pressReleasedDict['Pressed']) == float:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_float(self.pressReleasedDict['Pressed'])))
else:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.intern(self.pressReleasedDict['Pressed'])))
else:
if type(self.pressReleasedDict['Released']) == bool:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_bool(self.pressReleasedDict['Released'])))
elif type(self.pressReleasedDict['Released']) == int:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_long(self.pressReleasedDict['Released'])))
elif type(self.pressReleasedDict['Released']) == float:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_float(self.pressReleasedDict['Released'])))
else:
self.message_port_pub(pmt.intern("state"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.intern(self.pressReleasedDict['Released'])))