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更新验证码控件

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Irony 2017-04-06 10:37:12 +08:00
parent 0fadb834dd
commit 98b4ae7650
6 changed files with 53 additions and 19 deletions
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验证码控件/Jokerman.ttf
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验证码控件/README.md
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@ -4,8 +4,9 @@
### [Python3.4.4 or Python3.5][PyQt5] ### [Python3.4.4 or Python3.5][PyQt5]
# 截图 # 截图
<img src="ScreenShot/1.png" /> <img src="ScreenShot/1.gif" />
# 说明 # 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 /> 2.更新为paintEvent方式,采用上下跳动
1.参考网上一些代码，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 然后在paintEvent中绘制噪点和线条

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验证码控件/WidgetCode.py
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@ -12,46 +12,68 @@ Created on 2017年4月5日
from random import sample from random import sample
import string import string
from PyQt5.QtCore import Qt, qrand, QPointF, QPoint from PyQt5.QtCore import Qt, qrand, QPointF, QPoint, QBasicTimer
from PyQt5.QtGui import QPainter, QBrush, QFont, QPen, QFontDatabase from PyQt5.QtGui import QPainter, QBrush, QPen, QPalette, QFontMetrics
from PyQt5.QtWidgets import QLabel, QLineEdit from PyQt5.QtWidgets import QLabel
__version__ = "0.0.1" __version__ = "0.0.1"
DEF_NOISYPOINTCOUNT = 60 # 噪点数量 DEF_NOISYPOINTCOUNT = 60 # 噪点数量
COLORLIST = ("black", "gray", "red", "green", "blue", "cyan", "magenta") COLORLIST = ("black", "gray", "red", "green", "blue", "magenta")
QTCOLORLIST = (Qt.darkGray, Qt.darkRed, Qt.darkGreen, Qt.darkBlue, Qt.darkCyan, Qt.darkMagenta) TCOLORLIST = (Qt.black, Qt.gray, Qt.red, Qt.green, Qt.blue, Qt.magenta)
QTCOLORLIST = (Qt.darkGray, Qt.darkRed, Qt.darkGreen, Qt.darkBlue, Qt.darkMagenta)
HTML = "<html><body>{html}</body></html>" HTML = "<html><body>{html}</body></html>"
FONT = "<font color=\"{color}\">{word}</font>" FONT = "<font color=\"{color}\">{word}</font>"
WORDS = list(string.ascii_letters + string.digits) WORDS = list(string.ascii_letters + string.digits)
SINETABLE = (0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38)
class WidgetCode(QLabel): class WidgetCode(QLabel):
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
super(WidgetCode, self).__init__(*args, **kwargs) super(WidgetCode, self).__init__(*args, **kwargs)
self._sensitive = False # 是否大小写敏感
self.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter) self.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
self.setFont(QFont("Jokerman", 16)) self.setBackgroundRole(QPalette.Midlight)
self.setAutoFillBackground(True)
# 字体
newFont = self.font()
newFont.setPointSize(16)
newFont.setFamily("Kristen ITC")
newFont.setBold(True)
self.setFont(newFont)
self.reset() self.reset()
# 定时器
self.step = 0
self.timer = QBasicTimer()
self.timer.start(60, self)
def reset(self): def reset(self):
self._code = "".join(sample(WORDS, 4)) # 随机4个字符 self._code = "".join(sample(WORDS, 4)) # 随机4个字符
self.setText(self._code) self.setText(self._code)
def check(self, code): def check(self, code):
# 校验 return self._code == str(code) if self._sensitive else self._code.lower() == str(code).lower()
print("check", self._code.lower(), str(code).lower())
return self._code.lower() == str(code).lower()
def setText(self, text=""): def setSensitive(self, sensitive):
self._code = text self._sensitive = sensitive
html = "".join([FONT.format(color=COLORLIST[qrand() % 7], word=t) for t in text])
super(WidgetCode, self).setText(HTML.format(html=html)) # def setText(self, text):
# text = text if (text and len(text) == 4) else "".join(sample(WORDS, 4)) # 随机4个字符
# self._code = str(text)
# html = "".join([FONT.format(color=COLORLIST[qrand() % 6], word=t) for t in text])
# super(WidgetCode, self).setText(HTML.format(html=html))
def mouseReleaseEvent(self, event): def mouseReleaseEvent(self, event):
super(WidgetCode, self).mouseReleaseEvent(event) super(WidgetCode, self).mouseReleaseEvent(event)
self.reset() self.reset()
def timerEvent(self, event):
if event.timerId() == self.timer.timerId():
self.step += 1
return self.update()
return super(WidgetCode, self).timerEvent(event)
def paintEvent(self, event): def paintEvent(self, event):
painter = QPainter(self) painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing) painter.setRenderHint(QPainter.Antialiasing)
@ -63,7 +85,7 @@ class WidgetCode(QLabel):
painter.drawRect(self.rect()) painter.drawRect(self.rect())
# 随机画条线 # 随机画条线
for _ in range(3): for _ in range(3):
painter.setPen(QPen(QTCOLORLIST[qrand() % 6], 1, Qt.SolidLine)) painter.setPen(QPen(QTCOLORLIST[qrand() % 5], 1, Qt.SolidLine))
painter.setBrush(Qt.NoBrush) painter.setBrush(Qt.NoBrush)
painter.drawLine(QPoint(0, qrand() % self.height()), painter.drawLine(QPoint(0, qrand() % self.height()),
QPoint(self.width(), qrand() % self.height())) QPoint(self.width(), qrand() % self.height()))
@ -74,18 +96,29 @@ class WidgetCode(QLabel):
painter.setBrush(Qt.NoBrush) painter.setBrush(Qt.NoBrush)
for _ in range(self.width()): # 绘制噪点 for _ in range(self.width()): # 绘制噪点
painter.drawPoint(QPointF(qrand() % self.width(), qrand() % self.height())) painter.drawPoint(QPointF(qrand() % self.width(), qrand() % self.height()))
super(WidgetCode, self).paintEvent(event) # 绘制文字 # super(WidgetCode, self).paintEvent(event) # 绘制文字
# 绘制跳动文字
metrics = QFontMetrics(self.font())
x = (self.width() - metrics.width(self.text())) / 2
y = (self.height() + metrics.ascent() - metrics.descent()) / 2
for i, ch in enumerate(self.text()):
index = (self.step + i) % 16
painter.setPen(TCOLORLIST[qrand() % 6])
painter.drawText(x, y - ((SINETABLE[index] * metrics.height()) / 400), ch)
x += metrics.width(ch)
if __name__ == "__main__": if __name__ == "__main__":
import sys import sys
from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout
from PyQt5.QtGui import QFontDatabase
from PyQt5.QtWidgets import QLineEdit
app = QApplication(sys.argv) app = QApplication(sys.argv)
app.setApplicationName("Validate Code") app.setApplicationName("Validate Code")
QFontDatabase.addApplicationFont("Jokerman.ttf") QFontDatabase.addApplicationFont("itckrist.ttf")
w = QWidget() w = QWidget()
layout = QHBoxLayout(w) layout = QHBoxLayout(w)
cwidget = WidgetCode(w, minimumHeight=48, minimumWidth=100) cwidget = WidgetCode(w, minimumHeight=35, minimumWidth=80)
layout.addWidget(cwidget) layout.addWidget(cwidget)
lineEdit = QLineEdit(w, maxLength=4, placeholderText="请输入验证码并按回车验证", 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()))) returnPressed=lambda:print(cwidget.check(lineEdit.text())))

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