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PyQt5系列教程(二十五)图片自适应控件大小

 2 years ago
source link: https://xugaoxiang.com/2022/04/10/pyqt5-25-image-scale/
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软硬件环境

  • Windows 10 64bit
  • Anaconda3 with python 3.7
  • PyQt5

一般用 QLabel 控件来存放图片，但是图片有大有小，比例也不一样，如何才能让它自适应控件大小呢？本文来实践一下。

使用工具 designer，新建一个窗口，然后拖动一个 label 到窗口中，接着，空白处右键点击 布局 --> 栅格布局

1fc0e767a3470ae0.png

保存成 ui 文件后，使用 pyuic 将其转化成 python 代码

pyuic5.bat -o ui.py project.ui

完整的代码如下

import sys

from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5.QtGui import QPixmap

from ui import Ui_MainWindow

class MainWindow(QMainWindow, Ui_MainWindow):

    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setupUi(self)

        pix = QPixmap('wechat.jpg')
        # 自适应
        self.label.setScaledContents(True)
        self.label.setPixmap(pix)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    windows = MainWindow()
    windows.show()
    sys.exit(app.exec_())

执行上述代码

92add3d5cfc72e23.png

https://github.com/xugaoxiang/learningPyQt5

PyQt5系列教程

更多PyQt5教程，请移步

https://xugaoxiang.com/category/python/pyqt5/


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