Widget on Mac has a top and bottom border that is drawn on top of everything

XapaJIaMnu

Hey guys,

Apologies for the spam "HELP WITH MAC" topics.

I have a simple widget that acts as an image viewer. The widget window displays images as expected on Linux and Windows, but on Mac, I have top and bottom borders that get drawn over the image and I have no idea how to get rid of them.

Screenshot from linux:
correct_image

Screenshot from mac:
correct_image

As you can see on the mac version, there is a border on the top and the bottom half of the image. How do I get rid of it?

Here's the related code. I do not definite any style for the widget, I used the default created and then resize the window in my code as needed.

void imageSelector::paintEvent(QPaintEvent *) {
    QPainter painter(this);
    bkgnd_scaled = bkgnd.scaled(this->size(), Qt::KeepAspectRatio);
    QRect rect = bkgnd_scaled.rect();
    QRect devRect(0, 0, painter.device()->width(), painter.device()->height());
    rect.moveCenter(devRect.center());
    painter.drawPixmap(rect.topLeft(), bkgnd_scaled);
}

Cheers,

Nick

XapaJIaMnu

For anyone wondering what the solution was, I had unused QToolbar and QstatusBar, which were invisible on Linux and Windows, but appeared on Mac. Removing them from the .ui file fixed the issue:

<ui version="4.0">
 <class>imageSelector</class>
 <widget class="QMainWindow" name="imageSelector" >
  <property name="geometry" >
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle" >
   <string>imageSelector</string>
  </property>
  <widget class="QMenuBar" name="menuBar" />
  <widget class="QToolBar" name="mainToolBar" /> #CULPRIT
  <widget class="QWidget" name="centralWidget" />
  <widget class="QStatusBar" name="statusBar" /> #CULPRIT
 </widget>
 <layoutDefault spacing="6" margin="11" />
 <pixmapfunction></pixmapfunction>
 <resources/>
 <connections/>
</ui>

Should I open a bug for the inconsistent cross-platform behaviour?

Cheers,

Nick

SGaist

Hi,

Yes you can, but first check whether there's already something about this behaviour.

XapaJIaMnu

@SGaist I couldn't find anything about that. Where should I look for that information?

SGaist

Take a look at the bug report system