PyQt5 制作验证码

PyQt5 制作验证码

import random
from PyQt5.QtWidgets import QWidget
from PyQt5.QtGui import QPainter, QColor, QFont, QPixmap, QPolygon, QPen
from PyQt5.QtCore import Qt, QRect, QPoint
from utils import runtime_global_storage


class Example(QWidget):
    def __init__(self, pic_width, v_code_width, v_code_height, multiple):
        '''

        :param pic_width: 显示图片的宽度
        :param v_code_width: 画布宽度
        :param v_code_height: 画布高度
        :param multiple: 验证码间隔
        '''
        super().__init__()
        self.initUI()
        self.pic_width = pic_width
        self.v_code_width = v_code_width
        self.v_code_height = v_code_height
        self.multiple = multiple

    def initUI(self):
        self.setGeometry(0, 0, 380, 53)
        self.setWindowTitle("Draw text")
        self.show()
        runtime_global_storage.v_code_class = self

    def paintEvent(self, event):
        qp = QPainter()
        qp.translate(0, 0)
        qp.begin(self)
        self.drawText(qp)
        qp.end()

    def drawText(self, qp):
        self.text = ""
        text_str = "qwertyuiopasdfghjklzxcvbnm1234567890"
        images_list = ["b1", "b2", "b3", "b4", "b5"]
        for i in range(6):
            random_index = random.randint(0, 34)
            self.text += text_str[random_index]
        runtime_global_storage.v_code = self.text
        qp.setRenderHint(QPainter.Antialiasing)
        # gradient = QLinearGradient(0, 0, 0, 100)
        # gradient.setColorAt(0.0, QColor(random.randint(50, 155), random.randint(50, 155), random.randint(50, 155)))
        # gradient.setColorAt(1.0, QColor(random.randint(155, 255), random.randint(155, 255), random.randint(155, 255)))
        # qp.setBrush(gradient)
        qp.setFont(QFont("Decorative", 26, 75))
        qp.drawPixmap(self.pic_width, 0, 250, 53, QPixmap("images/" + images_list[random.randint(0, 4)] + ".jpg"))
        for i in range(len(self.text)):
            qp.setPen(QColor(random.randint(50, 255), random.randint(50, 255), random.randint(50, 255)))
            word_point = random.randint(-70 + (i * self.multiple), -50 + (i * self.multiple))
            qp.rotate(0)
            qp.rotate(random.uniform(-1.5, 1.5))
            qp.drawText(QRect(word_point, 2, self.v_code_width, self.v_code_height), Qt.AlignCenter, self.text[i])
        qp.setPen(QPen(QColor(random.randint(50, 255), random.randint(50, 255), random.randint(50, 255)), 2, 1, 0, 0))

        for i in range(2):
            # random_width = random.randint(self.pic_width + 6, self.pic_width + 244)
            # random_height = random.randint(6, 48)
            # points1 = [QPoint(random_width, random_height),
            #            QPoint(random_width - 6, random_height)]
            # points2 = [QPoint(random_width - 3, random_height),
            #            QPoint(random_width - 3, random_height + 2), QPoint(random_width - 3, random_height - 4)]
            # points1 = [QPoint(random_width, random_height), QPoint(random_width - 6, random_height)]
            # points2 = [QPoint(random_width, random_height), QPoint(random_width - 6, random_height)]
            # qp.drawPolyline(QPolygon(points1))
            # qp.drawPolyline(QPolygon(points2))
            # qp.setPen(QColor(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
            points = [
                QPoint(random.randint(self.pic_width + 6, self.pic_width + 244), random.randint(6, 48)),
                QPoint(random.randint(self.pic_width + 6, self.pic_width + 244), random.randint(6, 48)),
                QPoint(random.randint(self.pic_width + 6, self.pic_width + 244), random.randint(6, 48)),
            ]
            qp.drawPolygon(QPolygon(points))

    def mousePressEvent(self, QMouseEvent):
        self.repaint()

效果图：