/usr/lib/python2.7/dist-packages/pyqtgraph/examples/JoystickButton.py is in python-pyqtgraph 0.9.10-5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | # -*- coding: utf-8 -*-
"""
JoystickButton is a button with x/y values. When the button is depressed and the
mouse dragged, the x/y values change to follow the mouse.
When the mouse button is released, the x/y values change to 0,0 (rather like
letting go of the joystick).
"""
import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
app = QtGui.QApplication([])
mw = QtGui.QMainWindow()
mw.resize(300,50)
mw.setWindowTitle('pyqtgraph example: JoystickButton')
cw = QtGui.QWidget()
mw.setCentralWidget(cw)
layout = QtGui.QGridLayout()
cw.setLayout(layout)
mw.show()
l1 = pg.ValueLabel(siPrefix=True, suffix='m')
l2 = pg.ValueLabel(siPrefix=True, suffix='m')
jb = pg.JoystickButton()
jb.setFixedWidth(30)
jb.setFixedHeight(30)
layout.addWidget(l1, 0, 0)
layout.addWidget(l2, 0, 1)
layout.addWidget(jb, 0, 2)
x = 0
y = 0
def update():
global x, y, l1, l2, jb
dx, dy = jb.getState()
x += dx * 1e-3
y += dy * 1e-3
l1.setValue(x)
l2.setValue(y)
timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(30)
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()
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