PyQt實(shí)現(xiàn)界面翻轉(zhuǎn)切換效果
PyQt實(shí)現(xiàn)界面翻轉(zhuǎn)切換效果是用qt的場(chǎng)景功能來(lái)實(shí)現(xiàn)的,用到了QGraphicsView,QGraphicsLinearLayout,QGraphicsWidget等有關(guān)qt場(chǎng)景的庫(kù)。算是對(duì)qt場(chǎng)景的一個(gè)小小的嘗試,涉及內(nèi)容不深,程序效果并是隨心所欲,需要去進(jìn)一步的改善和提高。暫且先把代碼貼在此處,供大家學(xué)習(xí)和指正。
工程包括四個(gè)類:
界面A,TestMainWindow,用來(lái)充當(dāng)翻轉(zhuǎn)效果的A面。
界面B,TestMainWindowTwo,用來(lái)充當(dāng)翻轉(zhuǎn)效果的B面。
繪圖界面:TestGraphicWidget,用來(lái)繪制界面A和B。
主界面:MainWindow,是一個(gè)全屏的透明窗口,是整個(gè)效果展現(xiàn)的總舞臺(tái),內(nèi)部包含一個(gè)QGraphicsScene和一個(gè)QGraphicsView,用來(lái)展示效果中的界面翻轉(zhuǎn)和界面替換。
整個(gè)效果的原理總結(jié)為幾點(diǎn):
首先,將整個(gè)效果需要的所有界面添加到TestGraphicWidget中,在將TestGraphicWidget放入到QGraphicsScene中,然后經(jīng)QGraphicsScene添加到主界面中。
然后,界面切換實(shí)現(xiàn),兩個(gè)函數(shù),非常簡(jiǎn)單,要顯示A,就把B移除并隱藏,要顯示B,則把A移除并隱藏。
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,翻轉(zhuǎn)效果的實(shí)現(xiàn),用的是TestGraphicWidget特有的翻轉(zhuǎn)方法,參數(shù)可以根據(jù)實(shí)景情況調(diào)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()
而且提供了兩種讓程序等待但界面不會(huì)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()
下面粘上源碼,供參考,這個(gè)源碼可以直接運(yùn)行,內(nèi)部的調(diào)試信息可以忽略:
#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"翻轉(zhuǎn)") self.secondButton = QPushButton(u"翻轉(zhuǎn)") self.thirdButton = QPushButton(u"翻轉(zhuǎn)") 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)#反鋸齒 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翻轉(zhuǎn)") self.secondButton = QPushButton(u"p翻轉(zhuǎn)") self.thirdButton = QPushButton(u"p翻轉(zhuǎn)") 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)#反鋸齒 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) #創(chuàng)建部件,并關(guān)聯(lián)它們的信號(hào)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) #將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() #創(chuàng)建圖形部件,設(shè)置其為一個(gè)頂層窗口,然后在其上應(yīng)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)#中心點(diǎn),原點(diǎn) transform.rotate(i - 360 * 1, Qt.YAxis)#繞X軸旋轉(zhuǎn)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?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。
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