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。
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
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。
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
|
#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服务器之家。
原文链接：https://blog.csdn.net/jiuzuidongpo/article/details/78119997