pyqtgraph/examples/ColorButton.py

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2012-05-31 20:05:19 +00:00
# -*- coding: utf-8 -*-
import initExample ## Add path to library (just for examples; you do not need this)
"""
Simple example demonstrating a button which displays a colored rectangle
and allows the user to select a new color by clicking on the button.
"""
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
app = QtGui.QApplication([])
win = QtGui.QMainWindow()
btn = pg.ColorButton()
win.setCentralWidget(btn)
win.show()
def change(btn):
print("change", btn.color())
def done(btn):
print("done", btn.color())
btn.sigColorChanging.connect(change)
btn.sigColorChanged.connect(done)
## 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_()