学习PyQt5的过程中尝试结合了一下qrcode，编写了一个图形化界面来生成自定义二维码，简单记录一下。
作为第一篇微信文章，也学习一下排版和文字设置。
代码如下：
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton,
QMessageBox, QLineEdit, QGridLayout, QLabel
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtGui import QIcon
from qrcode import QRCode, ERROR_CORRECT_H
from PIL import Image
class Qr_qt(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle("QR Code Maker")
self.setWindowIcon(QIcon('10.jpg'))
self.lab1 = QLabel('Please Enter The Content Here')
self.lab2 = QLabel(' Choose a Picture Here ')
self.lab3 = QLabel(' Save The QR Code ')
self.text1 = QLineEdit('Content', self)
self.text1.selectAll()
self.text2 = QLineEdit('Picture', self)
self.text3 = QLineEdit('Path', self)
self.bt1 = QPushButton('Create', self)
self.bt1.setToolTip("<b>Push Here To Create QR Code</b>")
self.bt1.clicked.connect(self.create_qr)
self.bt2 = QPushButton('Quit', self)
self.bt2.setToolTip("<b>Push Here To Quit</b>")
self.bt2.clicked.connect(QCoreApplication.instance().quit)
grid = QGridLayout()
grid.addWidget(self.lab1, 0, 0)
grid.addWidget(self.text1, 0, 1)
grid.addWidget(self.lab2, 1, 0)
grid.addWidget(self.text2, 1, 1)
grid.addWidget(self.lab3, 2, 0)
grid.addWidget(self.text3, 2, 1)
grid.addWidget(self.bt1, 3, 0)
grid.addWidget(self.bt2, 3, 1)
self.setLayout(grid)
self.show()
def create_qr(self):
qr = QRCode(version = 1, error_correction = ERROR_CORRECT_H, border = 2)
qr.add_data(self.text1.text())
qr.make(fit = True)
img = qr.make_image()
img = img.convert("RGB")
if self.text2.text():
try:
logo = Image.open('{}'.format(self.text2.text()))
w, h = img.size
logo_w = int(w/4)
logo_h = int(h/4)
rel_w = int((w-logo_w)/2)
rel_h = int((h-logo_h)/2)
logo = logo.resize((logo_w, logo_h), Image.ANTIALIAS)
logo = logo.convert("RGBA")
img.paste(logo, (rel_w, rel_h), logo)
except:
QMessageBox.about(self, 'Error', 'No Such a File')
if self.text2.text() == None:
pass
try:
img.save('{}'.format(self.text3.text()))
QMessageBox.about(self, 'Message', 'Successfully Created')
except:
QMessageBox.about(self, 'Error', 'Please Enter The Right Path')
if __name__ == '__main__':
app = QApplication(sys.argv)
qr = Qr_qt()
sys.exit(app.exec_())
运行后的界面像这样：
完整的带注释的版本可以看发在CSDN博客上的，链接：
https://blog.csdn.net/pp5354chun/article/details/88408289
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