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#!/usr/bin/env python
# PyQt tutorial 7
import sys
from PySide2 import QtCore, QtGui
class LCDRange(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
lcd = QtGui.QLCDNumber(2)
self.slider = QtGui.QSlider(QtCore.Qt.Horizontal)
self.slider.setRange(0, 99)
self.slider.setValue(0)
self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
lcd, QtCore.SLOT("display(int)"))
self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
self, QtCore.SIGNAL("valueChanged(int)"))
layout = QtGui.QVBoxLayout()
layout.addWidget(lcd)
layout.addWidget(self.slider)
self.setLayout(layout)
def value(self):
return self.slider.value()
def setValue(self, value):
self.slider.setValue(value)
class MyWidget(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
quit = QtGui.QPushButton("Quit")
quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))
self.connect(quit, QtCore.SIGNAL("clicked()"),
QtGui.qApp, QtCore.SLOT("quit()"))
grid = QtGui.QGridLayout()
previousRange = None
layout = QtGui.QVBoxLayout()
layout.addWidget(quit)
layout.addLayout(grid)
self.setLayout(layout)
for row in range(3):
for column in range(3):
lcdRange = LCDRange()
grid.addWidget(lcdRange, row, column)
if previousRange:
self.connect(lcdRange, QtCore.SIGNAL("valueChanged(int)"),
previousRange.setValue)
previousRange = lcdRange
app = QtGui.QApplication(sys.argv)
widget = MyWidget()
widget.show()
sys.exit(app.exec_())
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