Hello guys (specially Luke I can see):
don't use your time trying to look at the previous code, since I nice help
from a charitable soul on Stack Overflow!:
import random
import sys
import pyqtgraph as pg
import time
from PyQt4 import QtGui, QtCore
class MyThread(QtCore.QThread):
def __init__(self, curve, parent=None):
super(MyThread, self).__init__(parent=parent)
self.curve = curve
self.data = [0]
def run(self):
while True:
self.data.append(self.data[-1] + 0.2 * (0.5 - random.random()))
self.curve.setData(self.data, downsample=10)
time.sleep(0.1)
print(len(self.data))
class LoginWidget(QtGui.QWidget):
def __init__(self, parent=None):
super(LoginWidget, self).__init__(parent)
layout = QtGui.QHBoxLayout()
self.button = QtGui.QPushButton('Start Plotting')
layout.addWidget(self.button)
self.plot = pg.PlotWidget()
layout.addWidget(self.plot)
self.setLayout(layout)
self.button.clicked.connect(self.plotter)
def plotter(self):
self.curve = self.plot.getPlotItem().plot()
myThread = MyThread(self.curve, self)
myThread.start()
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.centralwidget = QtGui.QWidget(self)
self.setCentralWidget(self.centralwidget)
self.horizontalLayout = QtGui.QHBoxLayout(self.centralwidget)
self.login_widget_1 = LoginWidget(self)
self.horizontalLayout.addWidget(self.login_widget_1)
self.login_widget_2 = LoginWidget(self)
self.horizontalLayout.addWidget(self.login_widget_2)
self.setCentralWidget(self.centralwidget)
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
And surprise, the GUI is responsive! :-) The only downside is that I need
to maximize/minimize in order for the plots to update? I'm working on
that...
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