91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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'''
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Created on 2018年2月1日
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@author: Irony."[讽刺]
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@site: https://pyqt5.com , https://github.com/892768447
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@email: 892768447@qq.com
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@file: PushButtonFont
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@description:
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'''
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import sys
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from PyQt5.QtCore import QPropertyAnimation, Qt, QRectF
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from PyQt5.QtGui import QFontDatabase
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from PyQt5.QtWidgets import QPushButton, QApplication, QStyleOptionButton,\
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QStylePainter, QStyle
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__Author__ = "By: Irony.\"[讽刺]\nQQ: 892768447\nEmail: 892768447@qq.com"
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__Copyright__ = "Copyright (c) 2018 Irony.\"[讽刺]"
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__Version__ = "Version 1.0"
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class PushButtonFont(QPushButton):
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LoadingText = "\uf110"
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def __init__(self, *args, **kwargs):
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super(PushButtonFont, self).__init__(*args, **kwargs)
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self.fontSize = self.font().pointSize() * 2
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self._rotateAnimationStarted = False
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self._rotateAnimation = QPropertyAnimation(self)
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self._rotateAnimation.setTargetObject(self)
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self._rotateAnimation.setStartValue(1)
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self._rotateAnimation.setEndValue(12)
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self._rotateAnimation.setDuration(1000)
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self._rotateAnimation.setLoopCount(-1) # 无限循环
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self._rotateAnimation.valueChanged.connect(self.update)
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self.clicked.connect(self._onClick)
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def paintEvent(self, _):
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option = QStyleOptionButton()
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self.initStyleOption(option)
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painter = QStylePainter(self)
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if self._rotateAnimationStarted:
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option.text = ""
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painter.drawControl(QStyle.CE_PushButton, option)
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if not self._rotateAnimationStarted:
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return
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painter.save()
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font = self.font()
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font.setPointSize(self.fontSize)
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font.setFamily("FontAwesome")
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painter.setFont(font)
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# 变换坐标为正中间
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painter.translate(self.rect().center())
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# 旋转90度
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painter.rotate(self._rotateAnimation.currentValue() * 30)
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fm = self.fontMetrics()
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# 在变换坐标后的正中间画文字
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w = fm.width(self.LoadingText)
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h = fm.height()
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painter.drawText(
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QRectF(0 - w * 2, 0 - h, w * 2 * 2, h * 2), Qt.AlignCenter,
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self.LoadingText)
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painter.restore()
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def _onClick(self):
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if self._rotateAnimationStarted:
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self._rotateAnimationStarted = False
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self._rotateAnimation.stop()
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return
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self._rotateAnimationStarted = True
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self._rotateAnimation.start()
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def update(self, _=None):
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super(PushButtonFont, self).update()
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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# 加载字体到字体库中
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QFontDatabase.addApplicationFont(
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"Data/Fonts/FontAwesome/fontawesome-webfont.ttf")
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w = PushButtonFont("点击加载")
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w.resize(400, 400)
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w.show()
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sys.exit(app.exec_())
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