image.png
""" 【简介】 不规则窗体的动画实现
"""
import sys from PyQt5.QtWidgets import QApplication, QWidget from PyQt5.QtGui import QPixmap, QPainter, QCursor from PyQt5.QtCore import Qt, QTimer
class ShapeWidget(QWidget): def init(self, parent=None): super(ShapeWidget, self).init(parent) self.i = 1 self.mypix() self.timer = QTimer() self.timer.setInterval(500) # 500毫秒 self.timer.timeout.connect(self.timeChange) self.timer.start()
# 显示不规则 pic
def mypix(self):
self.update()
if self.i == 5:
self.i = 1
self.mypic = {1: './images/left.png', 2: "./images/up.png", 3: './images/right.png', 4: './images/down.png'}
self.pix = QPixmap(self.mypic[self.i], "0", Qt.AvoidDither | Qt.ThresholdDither | Qt.ThresholdAlphaDither)
self.resize(self.pix.size())
self.setMask(self.pix.mask())
self.dragPosition = None
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.m_drag = True
self.m_DragPosition = event.globalPos() - self.pos()
event.accept()
self.setCursor(QCursor(Qt.OpenHandCursor))
def mouseMoveEvent(self, QMouseEvent):
if Qt.LeftButton and self.m_drag:
self.move(QMouseEvent.globalPos() - self.m_DragPosition)
QMouseEvent.accept()
def mouseReleaseEvent(self, QMouseEvent):
self.m_drag = False
self.setCursor(QCursor(Qt.ArrowCursor))
def paintEvent(self, event):
painter = QPainter(self)
painter.drawPixmap(0, 0, self.pix.width(), self.pix.height(), self.pix)
# 鼠标双击事件
def mouseDoubleClickEvent(self, event):
if event.button() == 1:
self.i += 1
self.mypix()
# 每500毫秒修改paint
def timeChange(self):
self.i += 1
self.mypix()
if name == 'main': app = QApplication(sys.argv) form = ShapeWidget() form.show() sys.exit(app.exec_())