/*
Most important function of an interactor component
When an event arrive on your interactor : this function is call
You have to process it and return true. If the event do nothing in your interactor : this function
return false;
*/
bool eventFilter(QObject *, QEvent *e) {
/*
If you have clicked on a node/edge, information widget is visible.
And if you use the wheel of the mouse we hide the information widget
*/
if (_informationWidgetItem->isVisible() && e->type() == QEvent::Wheel) {
_informationWidgetItem->setVisible(false);
return false;
}
/*
Check if the event is a mouse event
*/
QMouseEvent *qMouseEv = dynamic_cast<QMouseEvent *>(e);
if (qMouseEv != nullptr) {
GlMainView *glMainView = static_cast<GlMainView *>(view());
/*
Check if event is a left mouse button press
*/
if (e->type() == QEvent::MouseButtonPress && qMouseEv->button() == Qt::LeftButton) {
/*
If you have clicked on a node/edge, information widget is visible.
And if you reclick : hide it
*/
if (_informationWidgetItem->isVisible()) {
_informationWidgetItem->setVisible(false);
} else {
/*
Select entities under the mouse cursor
The result of selection is stored in SelectedEntity
And pickNodesEdges return true if you click on node or edge
*/
SelectedEntity selectedEntity;
if (glMainView->getGlMainWidget()->pickNodesEdges(qMouseEv->x(), qMouseEv->y(),
selectedEntity)) {
/*
Change text of the information label with
- If you click on a node : "Click on node id : nodeId"
- If you click on an edge : "Click on edge id : edgeId"
*/
QString text("Click on ");
if (selectedEntity.getEntityType() == SelectedEntity::NODE_SELECTED)
text += "node ";
else
text += "edge ";
text += " id : " + QString::number(selectedEntity.getComplexEntityId());
/*
- Update QLabel with new text
- Auto resize QLabel
- Set position of the label at mouse position
- Display it
*/
_informationLabel->setText(text);
_informationLabel->adjustSize();
_informationWidgetItem->setPos(qMouseEv->pos());
_informationWidgetItem->setVisible(true);
/*
Here we just add a small smooth animation on the label pop
*/
QPropertyAnimation *animation =
new QPropertyAnimation(_informationWidgetItem, "opacity");
animation->setDuration(100);
animation->setStartValue(0.);
animation->setEndValue(0.99);
animation->start();
/*
We have treated the event so we return true
*/
return true;
}
}
}
}
/*
We don't have treated the event se we return false
*/
return false;
}
void UiAPI::DeleteCallingWidgetOnClose()
{
QGraphicsProxyWidget *proxy = dynamic_cast<QGraphicsProxyWidget *>(sender());
if (proxy && !proxy->isVisible())
proxy->deleteLater();
}
