pyqtgraph/examples/ColorButton.py
2021-05-14 06:16:21 +08:00

31 lines
732 B
Python

# -*- coding: utf-8 -*-
"""
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 initExample ## Add path to library (just for examples; you do not need this)
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
app = pg.mkQApp("ColorButton Example")
win = QtGui.QMainWindow()
btn = pg.ColorButton()
win.setCentralWidget(btn)
win.show()
win.setWindowTitle('pyqtgraph example: ColorButton')
def change(btn):
print("change", btn.color())
def done(btn):
print("done", btn.color())
btn.sigColorChanging.connect(change)
btn.sigColorChanged.connect(done)
if __name__ == '__main__':
pg.exec()