Method refreshLayout

qrenderdoc/Widgets/ThumbnailStrip.cpp:78–185

}

void ThumbnailStrip::refreshLayout()
{
  if(updatesEnabled())
    setUpdatesEnabled(false);

  QRect avail = geometry();
  avail.adjust(6, 6, -6, -6);

  int numActive = 0;
  for(ResourcePreview *c : m_Thumbnails)
    if(c->isActive())
      numActive++;

  // depending on overall aspect ratio, we either lay out the strip horizontally or
  // vertically. This tries to account for whether the strip is docked along one side
  // or another of the texture viewer
  if(avail.width() > avail.height())
  {
    avail.setWidth(avail.width() + 6);    // controls implicitly have a 6 margin on the right

    int aspectWidth = (int)((float)avail.height() * 1.3f);

    ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    delete layout;
    layout = new QHBoxLayout();
    layout->setSpacing(6);
    layout->setContentsMargins(6, 6, 6, 6);
    layout->setAlignment(Qt::AlignTop);

    int noscrollWidth = numActive * (aspectWidth + 20);

    if(noscrollWidth <= avail.width())
    {
      ui->scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

      for(ResourcePreview *c : m_Thumbnails)
        c->setSize(QSize(aspectWidth, avail.height()));
    }
    else
    {
      ui->scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);

      QScrollBar *hs = ui->scrollArea->horizontalScrollBar();

      avail.setHeight(qMax(1, avail.height() - hs->geometry().height()));

      aspectWidth = qMax(1, (int)((float)avail.height() * 1.3f));

      int totalWidth = numActive * (aspectWidth + 20);
      hs->setEnabled(totalWidth > avail.width());

      for(ResourcePreview *c : m_Thumbnails)
        c->setSize(QSize(aspectWidth, avail.height()));
    }
  }
  else
  {