2018-09-25 23:20:03 +08:00
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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2021-07-13 14:52:26 +08:00
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"""
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2018-09-25 23:20:03 +08:00
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Created on 2017年4月5日
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2021-07-13 14:52:26 +08:00
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@author: Irony
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@site: https://pyqt.site , https://github.com/PyQt5
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2018-09-25 23:20:03 +08:00
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@email: 892768447@qq.com
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@file: widgets.WidgetCode
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@description:
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2021-07-13 14:52:26 +08:00
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"""
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2018-09-25 23:20:03 +08:00
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import string
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2021-07-13 14:52:26 +08:00
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from random import sample
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2018-09-25 23:20:03 +08:00
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2021-07-13 14:52:26 +08:00
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try:
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from PyQt5.QtCore import Qt, qrand, QPointF, QPoint, QBasicTimer
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from PyQt5.QtGui import QPainter, QBrush, QPen, QPalette, QFontMetrics, QFontDatabase
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from PyQt5.QtWidgets import QLabel, QApplication, QWidget, QHBoxLayout, QLineEdit
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except ImportError:
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from PySide2.QtCore import Qt, qrand, QPointF, QPoint, QBasicTimer
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from PySide2.QtGui import QPainter, QBrush, QPen, QPalette, QFontMetrics, QFontDatabase
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from PySide2.QtWidgets import QLabel, QApplication, QWidget, QHBoxLayout, QLineEdit
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2018-09-25 23:20:03 +08:00
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DEF_NOISYPOINTCOUNT = 60 # 噪点数量
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COLORLIST = ("black", "gray", "red", "green", "blue", "magenta")
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TCOLORLIST = (Qt.black, Qt.gray, Qt.red, Qt.green, Qt.blue, Qt.magenta)
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QTCOLORLIST = (Qt.darkGray, Qt.darkRed, Qt.darkGreen, Qt.darkBlue, Qt.darkMagenta)
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HTML = "<html><body>{html}</body></html>"
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FONT = "<font color=\"{color}\">{word}</font>"
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WORDS = list(string.ascii_letters + string.digits)
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SINETABLE = (0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38)
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2021-07-13 14:52:26 +08:00
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2018-09-25 23:20:03 +08:00
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class WidgetCode(QLabel):
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2018-09-25 23:20:03 +08:00
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def __init__(self, *args, **kwargs):
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super(WidgetCode, self).__init__(*args, **kwargs)
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self._sensitive = False # 是否大小写敏感
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self.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
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self.setBackgroundRole(QPalette.Midlight)
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self.setAutoFillBackground(True)
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# 字体
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newFont = self.font()
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newFont.setPointSize(16)
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newFont.setFamily("Kristen ITC")
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newFont.setBold(True)
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self.setFont(newFont)
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self.reset()
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# 定时器
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self.step = 0
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self.timer = QBasicTimer()
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self.timer.start(60, self)
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2018-09-25 23:20:03 +08:00
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def reset(self):
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self._code = "".join(sample(WORDS, 4)) # 随机4个字符
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self.setText(self._code)
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2018-09-25 23:20:03 +08:00
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def check(self, code):
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return self._code == str(code) if self._sensitive else self._code.lower() == str(code).lower()
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2018-09-25 23:20:03 +08:00
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def setSensitive(self, sensitive):
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self._sensitive = sensitive
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# def setText(self, text):
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# text = text if (text and len(text) == 4) else "".join(sample(WORDS, 4)) # 随机4个字符
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# self._code = str(text)
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# html = "".join([FONT.format(color=COLORLIST[qrand() % 6], word=t) for t in text])
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# super(WidgetCode, self).setText(HTML.format(html=html))
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2018-09-25 23:20:03 +08:00
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def mouseReleaseEvent(self, event):
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super(WidgetCode, self).mouseReleaseEvent(event)
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self.reset()
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2018-09-25 23:20:03 +08:00
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def timerEvent(self, event):
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if event.timerId() == self.timer.timerId():
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self.step += 1
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return self.update()
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return super(WidgetCode, self).timerEvent(event)
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2018-09-25 23:20:03 +08:00
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def paintEvent(self, event):
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painter = QPainter(self)
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painter.setRenderHint(QPainter.Antialiasing)
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# 背景白色
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painter.fillRect(event.rect(), QBrush(Qt.white))
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# 绘制边缘虚线框
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painter.setPen(Qt.DashLine)
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painter.setBrush(Qt.NoBrush)
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painter.drawRect(self.rect())
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# 随机画条线
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for _ in range(3):
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painter.setPen(QPen(QTCOLORLIST[qrand() % 5], 1, Qt.SolidLine))
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painter.setBrush(Qt.NoBrush)
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painter.drawLine(QPoint(0, qrand() % self.height()),
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QPoint(self.width(), qrand() % self.height()))
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painter.drawLine(QPoint(qrand() % self.width(), 0),
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QPoint(qrand() % self.width(), self.height()))
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# 绘制噪点
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painter.setPen(Qt.DotLine)
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painter.setBrush(Qt.NoBrush)
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for _ in range(self.width()): # 绘制噪点
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painter.drawPoint(QPointF(qrand() % self.width(), qrand() % self.height()))
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# super(WidgetCode, self).paintEvent(event) # 绘制文字
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# 绘制跳动文字
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metrics = QFontMetrics(self.font())
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x = (self.width() - metrics.width(self.text())) / 2
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y = (self.height() + metrics.ascent() - metrics.descent()) / 2
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for i, ch in enumerate(self.text()):
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index = (self.step + i) % 16
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painter.setPen(TCOLORLIST[qrand() % 6])
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painter.drawText(x, y - ((SINETABLE[index] * metrics.height()) / 400), ch)
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x += metrics.width(ch)
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2021-07-13 14:52:26 +08:00
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2018-09-25 23:20:03 +08:00
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if __name__ == "__main__":
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import sys
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2018-09-25 23:20:03 +08:00
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app = QApplication(sys.argv)
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app.setApplicationName("Validate Code")
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2019-01-01 17:04:10 +08:00
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QFontDatabase.addApplicationFont("Data/itckrist.ttf")
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2018-09-25 23:20:03 +08:00
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w = QWidget()
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layout = QHBoxLayout(w)
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2021-07-13 14:52:26 +08:00
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2018-09-25 23:20:03 +08:00
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cwidget = WidgetCode(w, minimumHeight=35, minimumWidth=80)
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layout.addWidget(cwidget)
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lineEdit = QLineEdit(w, maxLength=4, placeholderText="请输入验证码并按回车验证",
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returnPressed=lambda: print(cwidget.check(lineEdit.text())))
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layout.addWidget(lineEdit)
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w.show()
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sys.exit(app.exec_())
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