Qt Animation with show() cause first layout update

[cic]

Hello all,

i have inserted a second QToolBar at the bottom of QMainWindow,

this toolbar in my desire should be shown/hided-enabled by user.
like a search bar in webbrowser.

if (! m_findReplaceBar->isVisible()) {
      m_findReplaceBar->show();
      QPropertyAnimation *a = m_findReplaceBar->m_animator;
 
      if (a) {
         QRect rect = m_findReplaceBar->geometry();
         a-> setEndValue(rect);
         rect.setTop(rect.bottom());
         a->setStartValue(rect);
         a->start();
      }
   }

if (! m_findReplaceBar->isVisible()) {
      m_findReplaceBar->show();
      QPropertyAnimation *a = m_findReplaceBar->m_animator;

      if (a) {
         QRect rect = m_findReplaceBar->geometry();
         a-> setEndValue(rect);
         rect.setTop(rect.bottom());
         a->setStartValue(rect);
         a->start();
      }
   }

To copy to clipboard, switch view to plain text mode 

i found it after calling show() for the toolbar, the space which for the full rage of toolbar is preserved while not updated together with
the toolbar's animation.

Unbenannt.jpg

well the example is above. it loooooks so ugly

[anda_skoa]

Maybe be animate the toolbar's height as well?

Cheers,
_

[cic]

Hi anda_skoa,

it didnt work. still left an empty space for toolbar before animation finished.
is there any way to disable mainwindow layout update before animation finishes?

im also curious how qt does in similar case.

[cic]

Hope the solution can help anyone with the same issue above.

instead of geometry, animate the maximumSize of the toolbar because the mainwindow layout manage the geometry of its widget.