PyQt实现界面翻转切换效果

yipeiwu_com5年前Python基础

PyQt实现界面翻转切换效果是用qt的场景功能来实现的,用到了QGraphicsView,QGraphicsLinearLayout,QGraphicsWidget等有关qt场景的库。算是对qt场景的一个小小的尝试,涉及内容不深,程序效果并是随心所欲,需要去进一步的改善和提高。暂且先把代码贴在此处,供大家学习和指正。

工程包括四个类:

界面A,TestMainWindow,用来充当翻转效果的A面。
界面B,TestMainWindowTwo,用来充当翻转效果的B面。
绘图界面:TestGraphicWidget,用来绘制界面A和B。
主界面:MainWindow,是一个全屏的透明窗口,是整个效果展现的总舞台,内部包含一个QGraphicsScene和一个QGraphicsView,用来展示效果中的界面翻转和界面替换。

整个效果的原理总结为几点:

首先,将整个效果需要的所有界面添加到TestGraphicWidget中,在将TestGraphicWidget放入到QGraphicsScene中,然后经QGraphicsScene添加到主界面中。
然后,界面切换实现,两个函数,非常简单,要显示A,就把B移除并隐藏,要显示B,则把A移除并隐藏。

def setOne(self): 
  self.twoWidget.hide() 
  self.oneWidget.show() 
  self.layout.removeItem(self.twoTestWidget) 
  self.layout.addItem(self.oneTestWidget) 
  self.view.update() 
   
def setTwo(self): 
  self.oneWidget.hide() 
  self.twoWidget.show() 
  self.layout.removeItem(self.oneTestWidget) 
  self.layout.addItem(self.twoTestWidget) 
  self.view.update() 

然后是最重要的,翻转效果的实现,用的是TestGraphicWidget特有的翻转方法,参数可以根据实景情况调整。

def transeformR(self,count): 
  r = self.form.boundingRect() 
  for i in range(1,count): 
    self.form.setTransform(QTransform() 
                .translate(r.width() / 2, r.height() / 2) 
                .rotate(91.00/count*i - 360 * 1, Qt.YAxis) 
                .translate(-r.width() / 2, -r.height() / 2)) 
    self.waitMethod() 
    self.view.update() 
   
  self.form.setTransform(QTransform() 
                .translate(r.width() / 2, r.height() / 2) 
                .rotate(270 - 360 * 1, Qt.YAxis) 
                .translate(-r.width() / 2, -r.height() / 2)) 
  self.view.update() 
  if self.formflag %2 == 0: 
    self.setOne() 
  else: 
    self.setTwo() 
   
  for i in range(1,count): 
    self.form.setTransform(QTransform() 
                  .translate(r.width() / 2, r.height() / 2) 
                  .rotate(270 + 93.00/count*i - 360 * 1, Qt.YAxis) 
                  .translate(-r.width() / 2, -r.height() / 2)) 
    self.waitMethod() 
    self.view.update() 

而且提供了两种让程序等待但界面不会卡死的方法:

def sleep(self,msec): 
     
  dieTime = QTime.currentTime().addMSecs(msec) 
   
  print dieTime,QTime.currentTime() 
  #a = 0 
  while( QTime.currentTime() < dieTime ): 
    #print "000000000000" 
    QCoreApplication.processEvents(QEventLoop.AllEvents, 100) 
   
     
def waitMethod(self): 
  tt = QElapsedTimer() 
  tt.start() 
   
  q = QEventLoop() 
  t = QTimer() 
  t.setSingleShot(True) 
  self.connect(t, SIGNAL("timeout()"), q.quit) 
  t.start(1)  # 5s timeout 
  q.exec_() 
  if(t.isActive()): 
    t.stop() 
  else: 
    pass 
   
  print tt.elapsed() 

下面粘上源码,供参考,这个源码可以直接运行,内部的调试信息可以忽略:

#coding:utf-8 
''''' 
Created on 2015 7 15 
@author: guowu 
''' 
 
from PyQt4.QtGui import QWidget, QTextEdit, QPushButton, QGraphicsScene,\ 
  QGraphicsWidget, QGraphicsLinearLayout, QGraphicsView, QApplication,\ 
  QTransform, QHBoxLayout, QPainter, QLabel, QGraphicsLayoutItem, QFont,\ 
  QPixmap, QBrush 
from PyQt4.QtCore import Qt, QTime, QCoreApplication, QEventLoop, QObject,\ 
  SIGNAL, QPoint, QTimer, QBasicTimer, QElapsedTimer, QPointF 
import sys 
import time 
 
 
class TestGraphicWidget(QGraphicsWidget): 
  def __init__(self,parent=None): 
    super(TestGraphicWidget,self).__init__(parent) 
    self.setWindowFlags(Qt.Window) 
    self.setWindowTitle("Turn Widget") 
    self.resize(400,400) 
    #self.setPos(QPoint(0,0)) 
    self.mousePressed = False 
     
  def closeEvent(self,event): 
    print "closeclosetest" 
    self.emit(SIGNAL("startTurn")) 
   
  def mouseMoveEvent(self, event): 
    print "move move" 
    if self.mousePressed: 
      #self.move(self.pos() + event.pos() - self.currentPos) 
      self.setPos(self.pos() + event.pos() - self.currentPos) 
   
  def mousePressEvent(self, event): 
    if event.buttons() == Qt.LeftButton: 
      self.currentPos = event.pos() 
      self.mousePressed = True  
     
 
class TestMainWindow(QWidget): 
  def __init__(self,parent=None): 
    super(TestMainWindow,self).__init__(parent) 
    #self.setStyleSheet("background: transparent;border:0px;") 
    self.setAttribute(Qt.WA_TranslucentBackground,True) 
     
    self.firstButton = QPushButton(u"翻转") 
    self.secondButton = QPushButton(u"翻转") 
    self.thirdButton = QPushButton(u"翻转") 
     
    self.mainLayout = QHBoxLayout(self) 
    self.mainLayout.addWidget(self.firstButton) 
    self.mainLayout.addWidget(self.secondButton) 
    self.mainLayout.addWidget(self.thirdButton) 
     
    self.connect(self.firstButton, SIGNAL("clicked()"), self.startTurn) 
    self.connect(self.secondButton, SIGNAL("clicked()"), self.startTurn) 
    self.connect(self.thirdButton, SIGNAL("clicked()"), self.startTurn) 
   
  def startTurn(self): 
    self.emit(SIGNAL("buttonclicked")) 
     
  def closeEvent(self,event): 
    print "closeclosetest" 
    self.emit(SIGNAL("startTurn")) 
     
  def paintEvent(self,event): 
    #print "paintevent" 
    painter = QPainter(self) 
    painter.setRenderHint(QPainter.SmoothPixmapTransform, True)#像素光滑 
    painter.setRenderHint(QPainter.Antialiasing, True)#反锯齿 
    pix = QPixmap("cloud-bak.jpg").scaled(self.width(),self.height()) 
    painter.setBrush(QBrush(pix)) 
    painter.drawRoundRect(self.rect(),5,5) 
     
class TestMainWindowTwo(QWidget): 
  def __init__(self,parent=None): 
    super(TestMainWindowTwo,self).__init__(parent) 
    #self.setStyleSheet("QWidget{background: transparent;border:0px;}") 
    self.setAttribute(Qt.WA_TranslucentBackground,True) 
     
    self.firstButton = QPushButton(u"p翻转") 
    self.secondButton = QPushButton(u"p翻转") 
    self.thirdButton = QPushButton(u"p翻转") 
     
    self.mainLayout = QHBoxLayout(self) 
    self.mainLayout.addWidget(self.firstButton) 
    self.mainLayout.addWidget(self.secondButton) 
    self.mainLayout.addWidget(self.thirdButton) 
     
    self.connect(self.firstButton, SIGNAL("clicked()"), self.startTurn) 
    self.connect(self.secondButton, SIGNAL("clicked()"), self.startTurn) 
    self.connect(self.thirdButton, SIGNAL("clicked()"), self.startTurn) 
   
  def startTurn(self): 
    self.emit(SIGNAL("buttonclicked")) 
     
  def paintEvent(self,event): 
    #print "paintevent" 
    painter = QPainter(self) 
    painter.setRenderHint(QPainter.SmoothPixmapTransform, True)#像素光滑 
    painter.setRenderHint(QPainter.Antialiasing, True)#反锯齿 
    pix = QPixmap("login.jpg").scaled(self.width(),self.height()) 
    painter.setBrush(QBrush(pix)) 
    painter.drawRoundRect(self.rect(),5,5) 
   
class MainWindow(QWidget): 
  def __init__(self,parent=None): 
    super(MainWindow,self).__init__(parent) 
     
    #self.setStyleSheet("QGraphicsView{background:rgb(0,0,0,0);border:0px;}") 
     
     
    self.formflag = 0 
     
    self.scene = QGraphicsScene() 
     
    self.setWindowFlags(Qt.FramelessWindowHint|Qt.WindowStaysOnTopHint) 
    self.setAttribute(Qt.WA_TranslucentBackground,True) 
     
    #创建部件,并关联它们的信号和槽 
    self.oneWidget = TestMainWindow() 
    self.connect(self.oneWidget, SIGNAL("buttonclicked"),self.startTurn) 
     
    self.twoWidget = TestMainWindowTwo() 
    self.connect(self.twoWidget, SIGNAL("buttonclicked"),self.startTurn) 
     
 
    #self.textEdit = QGraphicsLayoutItem(self.edit) 
    self.oneTestWidget = self.scene.addWidget(self.oneWidget) 
    self.twoTestWidget = self.scene.addWidget(self.twoWidget) 
      
    self.form = TestGraphicWidget() 
    self.connect(self.form, SIGNAL("startTurn"),self.close) 
    #将部件添加到布局管理器中 
     
     
    self.layout = QGraphicsLinearLayout(self.form) 
    self.layout.setSpacing(0) 
    self.layout.addItem(self.oneTestWidget) 
    self.layout.addItem(self.twoTestWidget) 
     
     
    self.layout.removeItem(self.twoTestWidget) 
    self.twoWidget.hide() 
     
    #创建图形部件,设置其为一个顶层窗口,然后在其上应用布局 
    #self.form.setWindowFlags(Qt.Window|Qt.FramelessWindowHint) 
    #self.form.setWindowTitle("Widget Item") 
    #self.form.setLayout(layout) 
      
    self.scene.addItem(self.form) 
     
    #self.form.setPos(QPointF(0,0)) 
     
    #self.form.hide() 
     
    self.view = QGraphicsView(self.scene,self) 
    #self.view.setScene(self.scene) 
    self.view.setRenderHint(QPainter.Antialiasing) 
    self.view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate) 
    self.view.resize(QApplication.desktop().width(),QApplication.desktop().height()) 
    self.view.setStyleSheet("background: transparent;border:0px;") 
    self.view.setWindowFlags(Qt.FramelessWindowHint)       
    self.view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff) 
    self.view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff) 
    self.view.move(QPoint(0,0)) 
    #self.view.setAttribute(Qt.WA_TranslucentBackground,True) 
     
    #self.form.resize(500,500) 
    #self.form.setWindowFlags(Qt.FramelessWindowHint) 
    #for(int i=1;i<=360;i++) 
   
  def setOne(self): 
     
    self.twoWidget.hide() 
    self.oneWidget.show() 
    self.layout.removeItem(self.twoTestWidget) 
    self.layout.addItem(self.oneTestWidget) 
     
    self.view.update() 
   
  def setTwo(self): 
     
    self.oneWidget.hide() 
    self.twoWidget.show() 
    self.layout.removeItem(self.oneTestWidget) 
    self.layout.addItem(self.twoTestWidget) 
     
    self.view.update() 
     
  def transeformT(self,count): 
     
    r = self.form.boundingRect() 
    for i in range(1,count): 
      print "............." 
      self.form.setTransform(QTransform() 
                  .translate(r.width() / 2, r.height() / 2) 
                  .rotate(364.00/count*i - 360 * 1, Qt.YAxis) 
                  .translate(-r.width() / 2, -r.height() / 2)) 
      self.waitMethod() 
      #self.sleep(1) 
      #time.sleep(1) 
      self.view.update() 
#      
     
  def transeformS(self,count): 
    r = self.form.boundingRect() 
    for i in range(1,count): 
      print "............." 
      self.form.setTransform(QTransform() 
                  .translate(r.width() / 2, r.height() / 2) 
                  .rotate(182.00/count*i - 360 * 1, Qt.YAxis) 
                  .translate(-r.width() / 2, -r.height() / 2)) 
      self.waitMethod() 
      self.view.update() 
       
  def transeformR(self,count): 
    r = self.form.boundingRect() 
    for i in range(1,count): 
      print "............." 
      self.form.setTransform(QTransform() 
                  .translate(r.width() / 2, r.height() / 2) 
                  .rotate(91.00/count*i - 360 * 1, Qt.YAxis) 
                  .translate(-r.width() / 2, -r.height() / 2)) 
      self.waitMethod() 
      self.view.update() 
     
    self.form.setTransform(QTransform() 
                  .translate(r.width() / 2, r.height() / 2) 
                  .rotate(270 - 360 * 1, Qt.YAxis) 
                  .translate(-r.width() / 2, -r.height() / 2)) 
    self.view.update() 
    if self.formflag %2 == 0: 
      self.setOne() 
    else: 
      self.setTwo() 
     
    for i in range(1,count): 
      self.form.setTransform(QTransform() 
                    .translate(r.width() / 2, r.height() / 2) 
                    .rotate(270 + 93.00/count*i - 360 * 1, Qt.YAxis) 
                    .translate(-r.width() / 2, -r.height() / 2)) 
      self.waitMethod() 
      self.view.update() 
          
   
  def transeformB(self,count): 
    r = self.form.boundingRect() 
    for i in range(1,count): 
      print "............." 
      self.form.setTransform(QTransform() 
                  .translate(r.width(), r.height()) 
                  .rotate(91.00/count*i - 360 * 1, Qt.YAxis) 
                  .translate(-r.width(), -r.height())) 
      self.waitMethod() 
      self.view.update() 
     
    self.form.setTransform(QTransform() 
                  .translate(r.width(), r.height()) 
                  .rotate(270 - 360 * 1, Qt.YAxis) 
                  .translate(-r.width(), -r.height())) 
    self.view.update() 
     
     
    for i in range(1,count): 
      self.form.setTransform(QTransform() 
                    .translate(r.width(), r.height()) 
                    .rotate(270 + 93.00/count*i - 360 * 1, Qt.YAxis) 
                    .translate(-r.width(), -r.height())) 
      self.waitMethod() 
      self.view.update() 
       
  def transeform(self): 
    print self.form.pos() 
    #self.scene.itemAt(QPointF) 
    rxx = self.scene.itemsBoundingRect() 
    rx = self.form.boundingRect() 
    r = self.form.geometry() 
    print r,rx,rxx 
    for i in range(1,361): 
      print self.form.pos() 
      print "............." 
      #print r.width(),r.height() 
      transform = QTransform() 
      transform.translate(r.width() / 2, r.height()/2)#中心点,原点 
      transform.rotate(i - 360 * 1, Qt.YAxis)#绕X轴旋转角度 
      self.form.setTransform(transform) 
       
#       self.form.setTransform(QTransform() 
#                  .translate(r.width() / 2, r.height() / 2) 
#                  .rotate(i - 360 * 1, Qt.YAxis) 
#                  .translate(-r.width() / 2, -r.height() / 2)) 
#       self.form.setTransform(QTransform() 
#                  .translate(250, 250) 
#                  .rotate(i - 360 * 1, Qt.YAxis) 
#                  .translate(-250, -250)) 
      self.waitMethod() 
      self.view.update() 
#        
  def startTurn(self): 
    self.formflag += 1 
    self.transeformR(30) 
    #self.transeform() 
    #self.form.close() 
    #self.view.close() 
  def closeEvent(self,event): 
    print "close" 
    self.form.close() 
    self.view.close() 
    self.close() 
     
  def sleep(self,msec): 
     
    dieTime = QTime.currentTime().addMSecs(msec) 
     
    print dieTime,QTime.currentTime() 
    #a = 0 
    while( QTime.currentTime() < dieTime ): 
      #print "000000000000" 
      QCoreApplication.processEvents(QEventLoop.AllEvents, 100)     
   
  def waitMethod(self): 
    tt = QElapsedTimer() 
    tt.start() 
     
    q = QEventLoop() 
    t = QTimer() 
    t.setSingleShot(True) 
    self.connect(t, SIGNAL("timeout()"), q.quit) 
    t.start(1)  # 5s timeout 
    q.exec_() 
    if(t.isActive()): 
      t.stop() 
    else: 
      pass 
     
    print tt.elapsed() 
 
if __name__ == "__main__": 
  app = QApplication(sys.argv) 
   
  font = QFont() 
  font.setPointSize(16) 
  font.setFamily(("Roman Times")) 
  app.setFont(font) 
   
  c = MainWindow() 
  c.show() 
  c.move(QPoint(0,0)) 
  app.exec_() 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持【听图阁-专注于Python设计】。

相关文章

超简单使用Python换脸实例

超简单使用Python换脸实例

换脸! 这段时间,deepfakes搞得火热,比方说把《射雕英雄传》里的朱茵换成了杨幂,看下面的图!毫无违和感! 其实早在之前,基于AI换脸的技术就得到了应用,比方说《速度与激情7》里...

调用其他python脚本文件里面的类和方法过程解析

这篇文章主要介绍了调用其他python脚本文件里面的类和方法过程解析,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下 问题描述: 自己编...

python 实现文件的递归拷贝实现代码

python 实现文件的递归拷贝实现代码

所以就想把这些照片翻着看一遍,可是拷出来的照片手机 里是按时间自动分文件夹的,一个一个文件夹拷很是麻烦,于是打算写个python小脚本来完成这个工作(扯这么多,终于 到主题了,囧) 这...

python机器学习之神经网络(一)

python机器学习之神经网络(一)

python有专门的神经网络库,但为了加深印象,我自己在numpy库的基础上,自己编写了一个简单的神经网络程序,是基于Rosenblatt感知器的,这个感知器建立在一个线性神经元之上,神...

python调用Delphi写的Dll代码示例

首先看下Delphi单元文件基本结构: unit Unit1; //单元文件名 interface //这是接口关键字,用它来标识文件所调用的单元文件 uses /...