QwtPlot Mouse Event

[umulingu]

Hai
In my Project, I have a Main Widget in that QWT Plot Widget and some other widgets [QList ..].
I can get the MouseMoveEvent of my MainWidget but not able to get QWTPlot MouseMoveEvent.

suggestion please

void MainPlot::mousePressEvent(QMouseEvent *event)       // this is my MainWidget called MainPlot
{
------
------
}

void MainPlot::mousePressEvent(QMouseEvent *event)       // this is my MainWidget called MainPlot
{
------
------
}

To copy to clipboard, switch view to plain text mode 

and
my QWTPLOT Mouse Event is

void MainPlot::ui->uPlot->mouseMoveEvent(QMouseEvent *)    // Uplot is my QWTPLOT widget
{
// some code
    ------------------
    -------------------
 
}

void MainPlot::ui->uPlot->mouseMoveEvent(QMouseEvent *)    // Uplot is my QWTPLOT widget
{
// some code
    ------------------
    -------------------

}

To copy to clipboard, switch view to plain text mode 

[amoswood]

See https://www.qtcentre.org/showthread.php?t=31374 for answer.

[umulingu]

Hai

Thanks for ur reply

I am trying like this using event filter

legend->InstallEventFilter(this);
 
 
bool MainPlot::eventFilter(QObject *Object, QEvent *Event)
{
if(Object==ui->uPlot->legend())
  {
      if(Event->type()==QEvent::MouseMove)
      {
          QMouseEvent *a=static_cast<QMouseEvent*>(Event);
          MainPlot::ui->uPlot->legend()->setFrameStyle(QFrame::Box);         
  MainPlot::ui->uPlot->legend()->setGeometry(a->x(),a->y(),ui->uPlot->legend()->width(),ui->uPlot->legend()->height());
      }
  }
}

legend->InstallEventFilter(this);


bool MainPlot::eventFilter(QObject *Object, QEvent *Event)
{
if(Object==ui->uPlot->legend())
  {
      if(Event->type()==QEvent::MouseMove)
      {
          QMouseEvent *a=static_cast<QMouseEvent*>(Event);
          MainPlot::ui->uPlot->legend()->setFrameStyle(QFrame::Box);         
  MainPlot::ui->uPlot->legend()->setGeometry(a->x(),a->y(),ui->uPlot->legend()->width(),ui->uPlot->legend()->height());
      }
  }
}

To copy to clipboard, switch view to plain text mode 

The legend widget is moving but not properly..

any suggestion pl.



by
Suree
INdia

[amoswood]

The legend widget is moving but not properly..

First, you need to tell your legend to be an external legend so that it hovers over the canvas.

uplot->insertLegend(_legend, QwtPlot::ExternalLegend);

uplot->insertLegend(_legend, QwtPlot::ExternalLegend);

To copy to clipboard, switch view to plain text mode 

Second, use move instead of setGeometry ...

uPlot->legend()->move(a->pos());

uPlot->legend()->move(a->pos());

To copy to clipboard, switch view to plain text mode 

That should make it move right.