void HKWidgetListbox::ArrangeChildren()
{
// early out?
int numChildren = GetNumChildren();
if(numChildren == 0)
return;
MFVector pPos = orientation == Horizontal ? MakeVector(padding.x + scrollOffset, padding.y) : MakeVector(padding.x, padding.y + scrollOffset);
MFVector pSize = MakeVector(size.x - (padding.x + padding.z), size.y - (padding.y + padding.w));
contentSize = 0.f;
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
if(pWidget->GetVisible() == Gone)
continue;
const MFVector &cMargin = pWidget->GetLayoutMargin();
const MFVector &cSize = pWidget->GetSize();
MFVector tPos = pPos + MakeVector(cMargin.x, cMargin.y);
MFVector tSize = MFMax(pSize - MakeVector(cMargin.x + cMargin.z, cMargin.y + cMargin.w), MFVector::zero);
if(orientation == Horizontal)
{
float itemSize = cSize.x + cMargin.x + cMargin.z;
contentSize += itemSize;
pPos.x += itemSize;
pWidget->SetPosition(tPos);
pWidget->SetHeight(tSize.y);
}
else
{
float itemSize = cSize.y + cMargin.y + cMargin.w;
contentSize += itemSize;
pPos.y += itemSize;
pWidget->SetPosition(tPos);
pWidget->SetWidth(tSize.x);
}
}
}
