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
|
#!/usr/bin/env python
# Qt tutorial 7.
import sys
from qt import *
class LCDRange(QVBox):
def __init__(self,parent=None,name=None):
QVBox.__init__(self,parent,name)
lcd = QLCDNumber(2,self,'lcd')
self.slider = QSlider(Qt.Horizontal,self,'slider')
self.slider.setRange(0,99)
self.slider.setValue(0)
self.connect(self.slider,SIGNAL('valueChanged(int)'),lcd,SLOT('display(int)'))
self.connect(self.slider,SIGNAL('valueChanged(int)'),self,PYSIGNAL('valueChanged(int)'))
def value(self):
return self.slider.value()
def setValue(self,value):
self.slider.setValue(value)
class MyWidget(QVBox):
def __init__(self,parent=None,name=None):
QVBox.__init__(self,parent,name)
quit = QPushButton("Quit",self,"quit")
quit.setFont(QFont("Times",18,QFont.Bold))
self.connect(quit,SIGNAL("clicked()"),qApp,SLOT("quit()"))
grid = QGrid(4,self)
self.lcdlist = []
previous = None
for r in range(4):
for c in range(4):
lr = LCDRange(grid)
if previous is not None:
self.connect(lr,PYSIGNAL("valueChanged(int)"),previous.setValue)
previous = lr
self.lcdlist.append(lr)
a = QApplication(sys.argv)
w = MyWidget()
a.setMainWidget(w)
w.show()
a.exec_loop()
|
