PyQt/界面美化/QPushButton进度动画/PushButtonLine.py
2018-02-01 18:42:24 +08:00

116 lines
3.4 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
Created on 2018年2月1日
@author: Irony."[讽刺]
@site: http://alyl.vip, http://orzorz.vip, https://coding.net/u/892768447, https://github.com/892768447
@email: 892768447@qq.com
@file: PushButtonLine
@description:
'''
from random import randint
import sys
from PyQt5.QtCore import QTimer, QThread, pyqtSignal
from PyQt5.QtGui import QPainter, QColor, QPen
from PyQt5.QtWidgets import QPushButton, QApplication, QWidget, QVBoxLayout
__Author__ = "By: Irony.\"[讽刺]\nQQ: 892768447\nEmail: 892768447@qq.com"
__Copyright__ = "Copyright (c) 2018 Irony.\"[讽刺]"
__Version__ = "Version 1.0"
StyleSheet = '''
PushButtonLine {
color: white;
border: none;
min-height: 48px;
background-color: #90caf9;
}
'''
class LoadingThread(QThread):
valueChanged = pyqtSignal(float) # 当前值/最大值
def __init__(self, *args, **kwargs):
super(LoadingThread, self).__init__(*args, **kwargs)
self.totalValue = randint(100, 200) # 模拟最大
def run(self):
for i in range(self.totalValue + 1):
self.valueChanged.emit(i / self.totalValue)
QThread.msleep(randint(300, 600))
class PushButtonLine(QPushButton):
lineColor = QColor(0, 150, 136)
def __init__(self, *args, **kwargs):
self._waitText = kwargs.pop("waitText", "等待中")
super(PushButtonLine, self).__init__(*args, **kwargs)
self._text = self.text()
self._percent = 0
self._timer = QTimer(self, timeout=self.update)
self.clicked.connect(self.start)
def paintEvent(self, event):
super(PushButtonLine, self).paintEvent(event)
if not self._timer.isActive():
return
# 画进度
painter = QPainter(self)
pen = QPen(self.lineColor)
pen.setWidth(4)
painter.setPen(pen)
painter.drawLine(0, self.height(), self.width()
* self._percent, self.height())
def start(self):
if hasattr(self, "loadingThread"):
return self.stop()
self.loadingThread = LoadingThread(self)
self.loadingThread.valueChanged.connect(self.setPercent)
self._timer.start(200) # 200ms
self.loadingThread.start()
self.setText(self._waitText)
def stop(self):
self.loadingThread.valueChanged.disconnect(self.setPercent)
self.loadingThread.terminate()
self.loadingThread.deleteLater()
del self.loadingThread
self._percent = 0
self._timer.stop()
self.setText(self._text)
def setPercent(self, v):
self._percent = v
if v == 1:
self.stop()
self.update()
def setLineColor(self, color):
self.lineColor = QColor(color)
return self
class Window(QWidget):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
layout = QVBoxLayout(self)
layout.addWidget(PushButtonLine("点击加载"))
layout.addWidget(PushButtonLine("点击加载").setLineColor("#ef5350"))
layout.addWidget(PushButtonLine("点击加载").setLineColor("#ffc107"))
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setStyleSheet(StyleSheet)
w = Window()
w.show()
sys.exit(app.exec_())