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package ShapedClock;
use strict;
use warnings;
use List::Util qw( min );
use QtCore4;
use QtGui4;
use QtCore4::isa qw( Qt::Widget );
# [0]
sub dragPosition() {
return this->{dragPosition};
}
# [0]
my $hourHand = Qt::Polygon( [
Qt::Point(7, 8),
Qt::Point(-7, 8),
Qt::Point(0, -40)
] );
my $minuteHand = Qt::Polygon( [
Qt::Point(7, 8),
Qt::Point(-7, 8),
Qt::Point(0, -70)
] );
# [0]
sub NEW {
my ( $class, $parent ) = @_;
$class->SUPER::NEW( $parent, Qt::FramelessWindowHint() | Qt::WindowSystemMenuHint());
my $timer = Qt::Timer(this);
this->connect($timer, SIGNAL 'timeout()', this, SLOT 'update()');
$timer->start(1000);
my $quitAction = Qt::Action(this->tr("E&xit"), this);
$quitAction->setShortcut(Qt::KeySequence(this->tr("Ctrl+Q")));
this->connect($quitAction, SIGNAL 'triggered()', qApp, SLOT 'quit()');
this->addAction($quitAction);
this->setContextMenuPolicy(Qt::ActionsContextMenu());
this->setToolTip(this->tr("Drag the clock with the left mouse button.\n" .
"Use the right mouse button to open a context menu."));
this->setWindowTitle(this->tr("Shaped Analog Clock"));
}
# [0]
# [1]
sub mousePressEvent {
my ($event) = @_;
if ($event->button() == Qt::LeftButton()) {
this->{dragPosition} = Qt::Point($event->globalPos() - this->frameGeometry()->topLeft());
$event->accept();
}
}
# [1]
# [2]
sub mouseMoveEvent {
my ($event) = @_;
if ($event->buttons() & ${Qt::LeftButton()}) {
this->move($event->globalPos() - this->dragPosition);
$event->accept();
}
}
# [2]
# [3]
sub paintEvent {
my $hourColor = Qt::Color(127, 0, 127);
my $minuteColor = Qt::Color(0, 127, 127, 191);
my $side = min(this->width(), this->height());
my $time = Qt::Time::currentTime();
my $painter = Qt::Painter(this);
$painter->setRenderHint(Qt::Painter::Antialiasing());
$painter->translate(this->width() / 2, this->height() / 2);
$painter->scale($side / 200.0, $side / 200.0);
$painter->setPen(Qt::NoPen());
$painter->setBrush(Qt::Brush($hourColor));
$painter->save();
$painter->rotate(30.0 * (($time->hour() + $time->minute() / 60.0)));
$painter->drawConvexPolygon($hourHand);
$painter->restore();
$painter->setPen($hourColor);
for (my $i = 0; $i < 12; ++$i) {
$painter->drawLine(88, 0, 96, 0);
$painter->rotate(30.0);
}
$painter->setPen(Qt::NoPen());
$painter->setBrush(Qt::Brush($minuteColor));
$painter->save();
$painter->rotate(6.0 * ($time->minute() + $time->second() / 60.0));
$painter->drawConvexPolygon($minuteHand);
$painter->restore();
$painter->setPen($minuteColor);
for (my $j = 0; $j < 60; ++$j) {
if (($j % 5) != 0){
$painter->drawLine(92, 0, 96, 0);
}
$painter->rotate(6.0);
}
$painter->end();
}
# [3]
# [4]
sub resizeEvent {
my $side = min(this->width(), this->height());
my $maskedRegion = Qt::Region(this->width() / 2 - $side / 2, this->height() / 2 - $side / 2, $side,
$side, Qt::Region::Ellipse());
this->setMask($maskedRegion);
}
# [4]
# [5]
sub sizeHint {
return Qt::Size(100, 100);
}
# [5]
1;
|
