package LCDRange; use strict; use TQt; use TQt::isa qw(TQt::VBox); use TQt::slots setValue => ['int'], setRange => ['int', 'int'], setText => ['const char*']; use TQt::signals valueChanged => ['int']; use TQt::attributes qw( slider label ); sub NEW { my $class = shift; my $s; $s = shift if $_[0] and not ref $_[0]; $class->SUPER::NEW(@_); init(); setText($s) if $s; } sub init { my $lcd = TQt::LCDNumber(2, this, "lcd"); slider = TQt::Slider(&Horizontal, this, "slider"); slider->setRange(0, 99); slider->setValue(0); label = TQt::Label(" ", this, "label"); label->setAlignment(&AlignCenter); $lcd->connect(slider, TQ_SIGNAL('valueChanged(int)'), TQ_SLOT('display(int)')); this->connect(slider, TQ_SIGNAL('valueChanged(int)'), TQ_SIGNAL('valueChanged(int)')); setFocusProxy(slider); } sub value { slider->value } sub text { label->text } sub setValue { slider->setValue(shift) } sub setRange { my($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); } sub setText { label->setText(shift) } 1;