PyQt5笔记（07） -- 变换控件颜色

爱被打了一巴掌 2023-06-30 14:56 8阅读 0赞

#### 目录 ####

[PyQt5笔记（01） – 创建空白窗体][PyQt5_01_ _]  
[PyQt5笔记（02） – 按钮点击事件][PyQt5_02_ _]  
[PyQt5笔记（03） – 消息框][PyQt5_03_ _]  
[PyQt5笔记（04） – 文本框的使用][PyQt5_04_ _]  
[PyQt5笔记（05） – 绝对位置][PyQt5_05_ _]  
为了便于后期更新，所有目录已汇总到一个链接，具体请移步到[这里][Link 1]

#### 正文 ####

本节主要介绍PyQt的调色板的使用，在点击按钮后对窗体进行着色，具体代码如下

import sys
    from PyQt5 import QtGui
    from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QColorDialog
    from PyQt5.QtGui import QPainter
    from PyQt5.QtCore import pyqtSlot
    
    
    class App(QWidget):
        def __init__(self):
            super().__init__()
            self.title = 'PyQt5 color dialog'
            self.left = 100
            self.top = 100
            self.width = 320
            self.height = 200
            self.initUI()
        
        def initUI(self):
            self.setWindowTitle(self.title)
            self.setGeometry(self.left, self.top, self.width, self.height)
    
            button = QPushButton('Open color dialog', self)
            button.setToolTip('Opens color dialog')
            button.move(10, 10)
            button.clicked.connect(self.on_click)
        
            self.show()
    
        @pyqtSlot()
        def on_click(self):
            qp = QPainter(self)
            color = QColorDialog.getColor()
    
            if color.isValid():
                # 实例化调色板
                palette1 = QtGui.QPalette()
                # 设置调色板颜色
                palette1.setColor(palette1.Background, color)
                # 应用调色板
                self.setPalette(palette1)
                print(color.name())
    
    
    if __name__ == '__main__':
        app = QApplication(sys.argv)
        ex = App()
        sys.exit(app.exec_())

[PyQt5_01_ _]: https://blog.csdn.net/u014786187/article/details/78873852
[PyQt5_02_ _]: https://blog.csdn.net/u014786187/article/details/78876263
[PyQt5_03_ _]: https://blog.csdn.net/u014786187/article/details/78876696
[PyQt5_04_ _]: https://blog.csdn.net/u014786187/article/details/78880005
[PyQt5_05_ _]: https://blog.csdn.net/u014786187/article/details/78880297
[Link 1]: https://blog.csdn.net/u014786187/article/details/104028356