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package LCDRange;
use strict;
use warnings;
use blib;
use QtCore4;
use QtGui4;
use QtCore4::isa qw(Qt::Widget);
use QtCore4::slots setValue => ['int'],
setRange => ['int', 'int'];
use QtCore4::signals valueChanged => ['int'];
sub NEW {
my( $class, $parent, $text ) = @_;
$class->SUPER::NEW($parent);
init();
if( $text ) {
setText($text);
}
}
sub init {
my $lcd = Qt::LCDNumber(2);
$lcd->setSegmentStyle(Qt::LCDNumber::Filled());
my $slider = Qt::Slider(Qt::Horizontal());
$slider->setRange(0, 99);
$slider->setValue(0);
my $label = Qt::Label();
$label->setAlignment(Qt::AlignHCenter() | Qt::AlignTop());
$label->setSizePolicy(Qt::SizePolicy::Preferred(), Qt::SizePolicy::Fixed());
this->connect($slider, SIGNAL "valueChanged(int)",
$lcd, SLOT "display(int)");
this->connect($slider, SIGNAL "valueChanged(int)",
this, SIGNAL "valueChanged(int)");
my $layout = Qt::VBoxLayout;
$layout->addWidget($lcd);
$layout->addWidget($slider);
$layout->addWidget($label);
this->setLayout($layout);
this->setFocusProxy($slider);
this->{slider} = $slider;
this->{label} = $label;
}
sub value {
return this->{slider}->value();
}
sub setValue {
my ( $value ) = @_;
this->{slider}->setValue($value);
}
sub setRange {
my ( $minValue, $maxValue ) = @_;
if (($minValue < 0) || ($maxValue > 99) || ($minValue > $maxValue)) {
Qt::qWarning("LCDRange::setRange(%d, %d)\n" .
"\tRange must be 0..99\n" .
"\tand minValue must not be greater than maxValue",
$minValue, $maxValue);
return;
}
this->{slider}->setRange($minValue, $maxValue);
}
sub setText {
my ( $text ) = @_;
this->{label}->setText($text);
}
1;
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