验证码控件

2017-04-05 16:07:57 +08:00 · 2017-04-05 16:07:57 +08:00 · 4cf28c3b99
commit 4cf28c3b99
parent e00a9a803a
4 changed files with 105 additions and 0 deletions
--- a/验证码控件/Jokerman.ttf
+++ b/验证码控件/Jokerman.ttf
--- a/验证码控件/README.md
+++ b/验证码控件/README.md
@ -0,0 +1,11 @@
+# 验证码控件
+<br />
+
+### [Python3.4.4 or Python3.5][PyQt5]
+
+# 截图
+<img src="ScreenShot/1.png" />
+
+# 说明
+参考网上一些代码，都是采用paintEvent绘制，这里采用QLabel显示html结合字体来显示文字<br />
+然后在paintEvent中绘制噪点和线条
--- a/验证码控件/ScreenShot/1.png
+++ b/验证码控件/ScreenShot/1.png
--- a/验证码控件/WidgetCode.py
+++ b/验证码控件/WidgetCode.py
@ -0,0 +1,94 @@
+#!/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><body>{html}</body></html>"
+FONT = "<font color=\"{color}\">{word}</font>"
+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_())