from PySide2.QtWidgets import QLabel

from PySide2.QtGui import QPixmap

from PySide2.QtCore import Signal

import os,PySide2,sys

dirname = os.path.dirname(PySide2.__file__)

plugin_path = os.path.join(dirname, 'plugins', 'platforms')

os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = plugin_path

class Mybutton(QLabel):

clicked = Signal()

def __init__(self,*args,parent=None):

super().__init__(parent)

# 1 正常 2 进入 3 按下

self.pic_1 = QPixmap(args[0])

self.pic_2 = QPixmap(args[1])

self.pic_3 = QPixmap(args[2])

# 默认显示正常图片 及pic_1

self.setFixedSize(self.pic_1.size())

self.setPixmap(self.pic_1)

self.enterFlag = False

def enterEvent(self, event:PySide2.QtCore.QEvent):

# 重写鼠标进入事件

# 鼠标移入时，显示第二张图片

self.setPixmap(self.pic_2)

self.enterFlag = True

def leaveEvent(self, event:PySide2.QtCore.QEvent):

# 重写鼠标离开事件

# 鼠标移除时，显示默认图片

self.setPixmap(self.pic_1)

self.enterFlag = False

def mousePressEvent(self, ev:PySide2.QtGui.QMouseEvent):

self.setPixmap(self.pic_3)

def mouseReleaseEvent(self, ev:PySide2.QtGui.QMouseEvent):

if self.enterFlag:

self.setPixmap(self.pic_2)

# 如果鼠标弹起在label上时发射点击信号

self.clicked.emit()

else:

self.setPixmap(self.pic_1)