53 lines
1.2 KiB
Python
53 lines
1.2 KiB
Python
# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQT5中QScrollBar範例
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'''
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import sys
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from PyQt5.QtCore import *
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from PyQt5.QtGui import *
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from PyQt5.QtWidgets import *
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class Example(QWidget):
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def __init__(self):
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super(Example, self).__init__()
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self.initUI()
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def initUI(self):
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hbox = QHBoxLayout( )
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self.l1 = QLabel("拖動滑塊改變顏色")
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self.l1.setFont(QFont("Arial",16))
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hbox.addWidget(self.l1)
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self.s1 = QScrollBar()
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self.s1.setMaximum(255)
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self.s1.sliderMoved.connect(self.sliderval)
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self.s2 = QScrollBar()
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self.s2.setMaximum(255)
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self.s2.sliderMoved.connect(self.sliderval)
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self.s3 = QScrollBar()
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self.s3.setMaximum(255)
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self.s3.sliderMoved.connect(self.sliderval)
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hbox.addWidget(self.s1)
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hbox.addWidget(self.s2)
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hbox.addWidget(self.s3)
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self.setGeometry(300, 300, 300, 200)
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self.setWindowTitle('QScrollBar範例')
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self.setLayout( hbox )
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def sliderval(self):
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print( self.s1.value(),self.s2.value(), self.s3.value() )
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palette = QPalette()
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c = QColor(self.s1.value(),self.s2.value(), self.s3.value(),255)
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palette.setColor(QPalette.Foreground,c)
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self.l1.setPalette(palette)
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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demo = Example()
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demo.show()
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sys.exit(app.exec_())
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