Items' pos return wrong position

mghqt

Hello all,
I'm currently trying to make a custom widget which is consisted of some labels and in addition I have to connect some labels by drawing line between them. The problem I faced is that labels which are in layouts seem to returning wrong positions using their pos() function. I tried different types of mapTo functions but still there's a problem.

Can anyone help me with that?
thanks in advance for your help.

raven-worx

@mghqt said in Items' pos return wrong position:

I tried different types of mapTo functions but still there's a problem.

show some of the different types you already tried.
Or elaborate your issue with a screenshot etc.

mghqt

This post is deleted!

mghqt

@raven-worx
thank you for your response. this is the paintEvent function and a screenshot of where it draws the rect according to different mapTo functions:

void CWidget::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    QPen pen;
    int x,y,width,height;
    pen.setWidth(2);
    pen.setColor(Qt::blue);
    painter.setPen(pen);
    //    painter.drawRect(this->rect());
    QPoint points[]={
        QPoint(.9*this->width(),20),
        QPoint(.9*this->width(),160),
        QPoint(.5*this->width(),90)
    };

    painter.setPen(pen);
    QPoint pos1=ui->label_2->pos();
    QPoint pos2=ui->label_2->mapToParent(pos1);
    QPoint pos3=ui->label_2->mapToGlobal(pos1);
    QPoint pos4=ui->label_2->mapTo(this,pos1);
    x=ui->label_2->mapToParent(pos1).x();
    y=ui->label_2->mapToParent(pos1).y();
    int form_x=(this->pos()).x();
    int form_y=(this->pos()).y();
    //        qDebug()<<"pos1= "<<pos1<<" pos2="<<pos2<<" pos2="<<pos2;
    qDebug()<<"form: "<<this->pos()<<", map to global: "<<this->mapToGlobal(this->pos());
    width=ui->label_2->width();
    height=ui->label_2->height();

    painter.drawRect(pos1.x(),pos1.y(),width,height);
    painter.drawRect(pos2.x(),pos2.y(),width,height);
    painter.drawRect(pos3.x()-form_x,pos3.y()-form_y,width,height);
    painter.drawRect(pos4.x(),pos4.y(),width,height);


}

raven-worx

@mghqt
i assume CWidget class is the main widget (window)?
How do you compose/layout the form items? Are you using sub-widgets containers?

Anyways you should do like you did for pos4 if you want to map a child to a parent.

QPoint childPos=ui->label_2->mapTo(this, ui->label_2->pos());