一文详解PyQt5中实现不规则窗口的显示

PyQt5 不规则窗口的显示

QPixmap和QBitmap绘图的效果对比

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QPixmap, QPainter, QBitmap

class MyForm(QWidget):
    def __init__(self, parent=None):
        super(MyForm, self).__init__(parent)
        self.setWindowTitle("不规则窗口的实现例子")

    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(0, 0, 280, 390, QPixmap(r"./pyqt5/images/dog.jpg"))
        painter.drawPixmap(300, 0, 280, 390, QBitmap(r"./pyqt5/images/dog.jpg"))

if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = MyForm()
    form.show()
    sys.exit(app.exec_())

不可以拖动的不规则窗口

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QPixmap, QPainter, QBitmap

class WinForm(QWidget):
    def __init__(self, parent=None):
        super(WinForm, self).__init__(parent)
        self.setWindowTitle("不规则窗口的实现例子")

        self.pix = QBitmap("./pyqt5/images/mask.png")
        self.resize(self.pix.size())
        self.setMask(self.pix)

    def paintEvent(self, event):
        painter = QPainter(self)
        # 在指定区域直接绘制窗口背景
        painter.drawPixmap(0, 0, self.pix.width(), self.pix.height(), QPixmap("./pyqt5/images/screen1.jpg"))

if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = WinForm()
    win.show()
    sys.exit(app.exec_())

可以拖动的不规则窗口

import sys
from PyQt5.QtWidgets import QApplication  ,QWidget 
from PyQt5.QtGui import  QPixmap,   QPainter  ,  QCursor , QBitmap
from PyQt5.QtCore import Qt 

class ShapeWidget(QWidget):  
	def __init__(self,parent=None):  
		super(ShapeWidget,self).__init__(parent)
		self.setWindowTitle("不规则的，可以拖动的窗体实现例子") 
		self.mypix()	

    # 显示不规则 pic
	def mypix(self):
		self.pix = QBitmap( "./pyqt5/images/mask.png" )
		self.resize(self.pix.size())       
		self.setMask(self.pix)
		print( self.pix.size())
		self.dragPosition = None

	# 重定义鼠标按下响应函数mousePressEvent(QMouseEvent)和鼠标移动响应函数mouseMoveEvent(QMouseEvent)，使不规则窗体能响应鼠标事件，随意拖动。
	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))
		if event.button()==Qt.RightButton:  
			self.close()  
			
	def mouseMoveEvent(self, QMouseEvent):
		if Qt.LeftButton and self.m_drag:
		    # 当左键移动窗体修改偏移值
			self.move(QMouseEvent.globalPos()- self.m_DragPosition )
			QMouseEvent.accept()
	
	def mouseReleaseEvent(self, QMouseEvent):
		self.m_drag=False
		self.setCursor(QCursor(Qt.ArrowCursor))
    
    #一般 paintEvent 在窗体首次绘制加载， 要重新加载paintEvent 需要重新加载窗口使用 self.update() or  self.repaint()    
	def paintEvent(self, event):
		painter = QPainter(self)
		painter.drawPixmap(0,0,self.width(),self.height(),QPixmap("./pyqt5/images/boy.png"))
			
if __name__ == '__main__':
    app=QApplication(sys.argv)
    form=ShapeWidget()
    form.show()
    app.exec_()

不规则窗口实现动画效果

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) # 定时器每500毫秒更新一次
        self.timer.timeout.connect(self.timeChange)
        self.timer.start()

    # 显示不规则图片
    def mypix(self):
        self.update()
        if self.i == 5:
            self.i = 1
        self.mypic = {1:'./pyqt5/images/left.png', 2:'./pyqt5/images/up.png', 3:'./pyqt5/images/right.png', 4:'./pyqt5/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)

    def mouseDoubleClickEvent(self, event):
        if event.button() == 1:
            self.i += 1
            self.mypix()

    def timeChange(self):
        self.i += 1
        self.mypix()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = ShapeWidget()
    win.show()
    sys.exit(app.exec_())

加载GIF动画效果

import sys
from PyQt5.QtWidgets import QApplication, QLabel, QWidget
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QMovie

class LoadingGifWin(QWidget):
    def __init__(self, parent=None):
        super(LoadingGifWin, self).__init__(parent)
        self.label = QLabel('', self)
        self.setFixedSize(128, 128)        
        self.setWindowFlags(Qt.Dialog | Qt.CustomizeWindowHint)
        self.movie = QMovie("./pyqt5/images/loading.gif")
        self.label.setMovie(self.movie)
        self.movie.start()
        
if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = LoadingGifWin()
    win.show()
    sys.exit(app.exec_())

到此这篇关于一文详解PyQt5中实现不规则窗口的显示的文章就介绍到这了,更多相关PyQt5不规则窗口显示内容请搜索猪先飞以前的文章或继续浏览下面的相关文章希望大家以后多多支持猪先飞！

原文出处：https://blog.csdn.net/songyulong8888/article/details/1281293