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
|
package LCDRange;
use strict;
use Qt;
use Qt::isa qw(Qt::VBox);
use Qt::slots
setValue => ['int'],
setRange => ['int', 'int'];
use Qt::signals
valueChanged => ['int'];
use Qt::attributes qw(
slider
);
sub NEW {
shift->SUPER::NEW(@_);
my $lcd = Qt::LCDNumber(2, this, "lcd");
slider = Qt::Slider(&Horizontal, this, "slider");
slider->setRange(0, 99);
slider->setValue(0);
$lcd->connect(slider, SIGNAL('valueChanged(int)'), SLOT('display(int)'));
this->connect(slider, SIGNAL('valueChanged(int)'), SIGNAL('valueChanged(int)'));
setFocusProxy(slider);
}
sub value { slider->value }
sub setValue { slider->setValue(shift) }
sub setRange {
my($minVal, $maxVal) = @_;
if($minVal < 0 || $maxVal > 99 || $minVal > $maxVal) {
warn "LCDRange::setRange($minVal,$maxVal)\n" .
"\tRange must be 0..99\n" .
"\tand minVal must not be greater than maxVal\n";
return;
}
slider->setRange($minVal, $maxVal);
}
1;
|
