QGraphicsItem is not selectable after selecting one other QGraphics Item

[canrollas]

Hi, I am currently trying to implementing a node editor for myself. But I have a semantic error that I couldnt figure it out. In my code there is a graphicsview and when adding item to the view everythin is fine. After selecting one item retrieves problem that I can not detect other nodes.

Can anyonde help me about it?

This is how I add nodes to view.

This is Nodes added to the application.

View Class Code

void NodeClass::mousePressEvent(QMouseEvent *event)
{
    if(event->button()==Qt::RightButton){


        QMenu menu(this);
        menu.addAction("Add Node");
        menu.addAction("Add Node");



        QPointF scenePoint = mapToScene(event->pos());
        menu.exec(event->globalPos());
        Node *myNode = new Node(scene,"Undefined Title");
        myNode->setPos(scenePoint);

        //QGraphicsRectItem *button1 = new QGraphicsRectItem(scenePoint.x(),scenePoint.y(), 100, 200);
        //blockList->append(*myNode);
        scene->addItem(myNode);
        //qInfo()<<"This is items scene"<<scene->items();
    }else{
        QGraphicsView::mousePressEvent(event);
// this is for avoiding the double clicks
    }

}

This is code of the mouse event of QGraphicsItem

void Node::mousePressEvent(QGraphicsSceneMouseEvent *event){
    int xpos = this->pos().x();
    int ypos = this->pos().y();

   

    int mapped_xpos =  mapToScene(event->pos()).x() ;
    int mapped_ypos =  mapToScene(event->pos()).y() ;





    if(xpos<=mapped_xpos && mapped_xpos<=xpos+width && ypos<=mapped_ypos && mapped_ypos<=ypos+height && event->button()==Qt::LeftButton){
        // Printing the position of the mouse click
        qDebug() << "Mouse Clicked at: " << mapped_xpos << " " << mapped_ypos;
        // Printing the position of the node
        qDebug() << "Node Position: " << xpos << " " << ypos;
        // Printing the position of the node
        qDebug() << "Node Size: " << width << " " << height;
        // Printing the position of the node
        qDebug() << "Node Edge Size: " << edge_size;
        // Printing the position of the node

        qDebug() << "Node has choosen!";
        // change the cursor to a holding hand

    }else{

    }
    
    

}

This is console output

Mouse Clicked at:  371   296
Node Position:  255   120
Node Size:  340   480
Node Edge Size:  35
Node has choosen!

// But after clicking another node it has the same focus on the QGraphicsItem lastly clicked.

Thanks for your helps.

[Asperamanca]

@canrollas
I'm not sure what you mean by "selectable". You don't seem to use QGraphicItem's standard facility for that (using QGraphicsItem::ItemIsSelectable flag)

[canrollas]

@Asperamanca said in QGraphicsItem is not selectable after selecting one other QGraphics Item:

QGraphicsItem::ItemIsSelectable flag

Hi sir, When I mean selectable => When mouse clicks on it. After click I can detect mouse click and positions. BUt I can not detect other clicks in other Items. ( And thankyou for remind me Selectable Flag ) Do you have opinion about that?

[Asperamanca]

@canrollas
First, the event has a scenePos, so you don't need to map the coordinates yourself.
Second, why

if(xpos<=mapped_xpos && mapped_xpos<=xpos+width && ypos<=mapped_ypos && mapped_ypos<=ypos+height

If the mouse is not on the item, you simply won't get an event anyway

[canrollas]

@Asperamanca thanks for your warning it works that way but Your answer does not solve my problem.