#!/usr/bin/env python # -*- coding: utf-8 -*- ''' Created on 2017年4月5日 @author: Irony."[讽刺] @site: alyl.vip, orzorz.vip, irony.coding.me , irony.iask.in , mzone.iask.in @email: 892768447@qq.com @file: widgets.WidgetCode @description: ''' from random import sample import string from PyQt5.QtCore import Qt, qrand, QPointF, QPoint from PyQt5.QtGui import QPainter, QBrush, QFont, QPen, QFontDatabase from PyQt5.QtWidgets import QLabel, QLineEdit __version__ = "0.0.1" DEF_NOISYPOINTCOUNT = 60 # 噪点数量 COLORLIST = ("black", "gray", "red", "green", "blue", "cyan", "magenta") QTCOLORLIST = (Qt.darkGray, Qt.darkRed, Qt.darkGreen, Qt.darkBlue, Qt.darkCyan, Qt.darkMagenta) HTML = "{html}" FONT = "{word}" WORDS = list(string.ascii_letters + string.digits) class WidgetCode(QLabel): def __init__(self, *args, **kwargs): super(WidgetCode, self).__init__(*args, **kwargs) self.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter) self.setFont(QFont("Jokerman", 16)) self.reset() def reset(self): self._code = "".join(sample(WORDS, 4)) # 随机4个字符 self.setText(self._code) def check(self, code): # 校验 print("check", self._code.lower(), str(code).lower()) return self._code.lower() == str(code).lower() def setText(self, text=""): self._code = text html = "".join([FONT.format(color=COLORLIST[qrand() % 7], word=t) for t in text]) super(WidgetCode, self).setText(HTML.format(html=html)) def mouseReleaseEvent(self, event): super(WidgetCode, self).mouseReleaseEvent(event) self.reset() def paintEvent(self, event): painter = QPainter(self) painter.setRenderHint(QPainter.Antialiasing) # 背景白色 painter.fillRect(event.rect(), QBrush(Qt.white)) # 绘制边缘虚线框 painter.setPen(Qt.DashLine) painter.setBrush(Qt.NoBrush) painter.drawRect(self.rect()) # 随机画条线 for _ in range(3): painter.setPen(QPen(QTCOLORLIST[qrand() % 6], 1, Qt.SolidLine)) painter.setBrush(Qt.NoBrush) painter.drawLine(QPoint(0, qrand() % self.height()), QPoint(self.width(), qrand() % self.height())) painter.drawLine(QPoint(qrand() % self.width(), 0), QPoint(qrand() % self.width(), self.height())) # 绘制噪点 painter.setPen(Qt.DotLine) painter.setBrush(Qt.NoBrush) for _ in range(self.width()): # 绘制噪点 painter.drawPoint(QPointF(qrand() % self.width(), qrand() % self.height())) super(WidgetCode, self).paintEvent(event) # 绘制文字 if __name__ == "__main__": import sys from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout app = QApplication(sys.argv) app.setApplicationName("Validate Code") QFontDatabase.addApplicationFont("Jokerman.ttf") w = QWidget() layout = QHBoxLayout(w) cwidget = WidgetCode(w, minimumHeight=48, minimumWidth=100) layout.addWidget(cwidget) lineEdit = QLineEdit(w, maxLength=4, placeholderText="请输入验证码并按回车验证", returnPressed=lambda:print(cwidget.check(lineEdit.text()))) layout.addWidget(lineEdit) w.show() sys.exit(app.exec_())