Re: Data cursor in Octave

[roland65]

Pantxo wrote
> It is thus not very difficult, but it has to be implemented for both fltk
> and Qt.

OK, thanks for the tips, it helped me a lot.

I tried to add a menu to the qt figure. It almost works. Indeed, when I
click on my custom "Data cursor" menu item, the datacursor() function is
executed (I see the coordinates that changes at the bottom) but the
annotation is not shown. For the whole thing to work, I have to go to the
Octave terminal and press the enter key once. Then, the datacursor works as
expected.

Do you have any idea about this strange behaviour?

Here is my code (in libgui/graphics/Figure.cc):


void
Figure::createFigureToolBarAndMenuBar (void)
{

   <...>

  editMenu->addSeparator ();
  editMenu->addActions (m_mouseModeGroup->actions ());
  editMenu->addAction (tr ("&Data cursor"), this, SLOT (dataCursor (void)));

  < ... >
}

void
Figure::dataCursor (void)
{
    octave_link::post_event (this, &Figure::datacursor_callback);
}

void
Figure::datacursor_callback (void)
{
  figure::properties& fp = properties<figure> ();
  octave_value fnum = fp.get___myhandle__ ().as_octave_value ();

  Ffeval (ovl ("datacursor", fnum));

  //redraw (); // Needed ?
}






--
View this message in context: 
http://octave.1599824.n4.nabble.com/Data-cursor-in-Octave-tp4681801p4681842.html
Sent from the Octave - General mailing list archive at Nabble.com.