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package DiagramScene;
use strict;
use warnings;
use QtCore4;
use QtGui4;
# [0]
use QtCore4::isa qw( Qt::GraphicsScene );
use QtCore4::signals
itemMoved => ['QGraphicsPolygonItem *', 'const QPointF &'];
use DiagramItem;
sub movingItem() {
return this->{movingItem};
}
sub oldPos() {
return this->{oldPos};
}
sub NEW
{
my ($class, $parent) = @_;
$class->SUPER::NEW($parent);
this->{movingItem} = undef;
}
sub mousePressEvent
{
my ($event) = @_;
my $mousePos = Qt::PointF($event->buttonDownScenePos(Qt::LeftButton())->x(),
$event->buttonDownScenePos(Qt::LeftButton())->y());
this->{movingItem} = itemAt($mousePos->x(), $mousePos->y());
if (defined movingItem && $event->button() == Qt::LeftButton()) {
this->{oldPos} = movingItem->pos();
}
clearSelection();
this->SUPER::mousePressEvent($event);
}
sub mouseReleaseEvent
{
my ($event) = @_;
if (defined movingItem && $event->button() == Qt::LeftButton()) {
if (oldPos != movingItem->pos()) {
emit itemMoved(movingItem, oldPos);
}
this->{movingItem} = undef;
}
this->SUPER::mouseReleaseEvent($event);
}
1;
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