virtual void OnArrangeChildren( const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildren ) const override
{
if (Children.Num() == 0)
{
return;
}
const float Alpha = 1.f - SlideCurve.GetLerp();
float PositionSoFar = AllottedGeometry.GetLocalSize().Y + StartSlideOffset*Alpha;
for (int32 Index = 0; Index < NumSlots(); ++Index)
{
const SBoxPanel::FSlot& CurChild = Children[Index];
const EVisibility ChildVisibility = CurChild.GetWidget()->GetVisibility();
if (ChildVisibility != EVisibility::Collapsed)
{
const FVector2D ChildDesiredSize = CurChild.GetWidget()->GetDesiredSize();
const FMargin SlotPadding(CurChild.SlotPadding.Get());
const FVector2D SlotSize(AllottedGeometry.Size.X, ChildDesiredSize.Y + SlotPadding.GetTotalSpaceAlong<Orient_Vertical>());
const AlignmentArrangeResult XAlignmentResult = AlignChild<Orient_Horizontal>( SlotSize.X, CurChild, SlotPadding );
const AlignmentArrangeResult YAlignmentResult = AlignChild<Orient_Vertical>( SlotSize.Y, CurChild, SlotPadding );
ArrangedChildren.AddWidget( ChildVisibility, AllottedGeometry.MakeChild(
CurChild.GetWidget(),
FVector2D( XAlignmentResult.Offset, PositionSoFar - SlotSize.Y + YAlignmentResult.Offset ),
FVector2D( XAlignmentResult.Size, YAlignmentResult.Size )
));
PositionSoFar -= SlotSize.Y;
}
}
}
FVector2D ComputeTotalSize() const
{
FVector2D Size(ForceInitToZero);
for (int32 Index = 0; Index < FMath::Min(NumSlots(), MaxNumVisible); ++Index)
{
const FVector2D& ChildSize = Children[Index].GetWidget()->GetDesiredSize();
if (ChildSize.X > Size.X)
{
Size.X = ChildSize.X;
}
Size.Y += ChildSize.Y + Children[Index].SlotPadding.Get().GetTotalSpaceAlong<Orient_Vertical>();
}
return Size;
}
void FBOSourceTextureFilter::updateOuputSlots(void)
{
bool AttachedFiltersNeedUpdate(false);
//Update the number of slots
UInt8 NumSlots(0);
if(getFBO() != NullFC)
{
NumSlots = getFBO()->getTextures().size();
}
if(NumSlots != getOutputSlots().size())
{
//Need to resize the number of slots
getOutputSlots().resize(NumSlots);
}
UInt32 FormatClasses(OSG_TEXTURE_INTERNAL_FORMAT_NONE);
UInt32 DataTypeClasses(OSG_TEXTURE_DATA_TYPE_NONE);
//Update the definitions of each of the slots
for(UInt8 i(0) ; i<NumSlots ; ++i)
{
FormatClasses = determinTextureFormatClasses(getFBO()->getTextures(i));
DataTypeClasses = determinTextureDataTypeClasses(getFBO()->getTextures(i));
//Update the Format Class
if(FormatClasses != getOutputSlots(i).getTextureFormatClasses())
{
editOutputSlots(i).setTextureFormatClasses(FormatClasses);
}
//Update the Data Type Class
if(DataTypeClasses != getOutputSlots(i).getTextureDataTypeClasses())
{
editOutputSlots(i).setTextureDataTypeClasses(DataTypeClasses);
}
//Update the Description
//TODO: Implement
}
}
virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override
{
if (!SlideCurve.IsPlaying())
{
StartSlideOffset = 0;
}
// Delete any widgets that are now offscreen
if (Children.Num() != 0)
{
const float Alpha = 1.f - SlideCurve.GetLerp();
float PositionSoFar = AllottedGeometry.GetLocalSize().Y + Alpha * StartSlideOffset;
for (int32 Index = 0; PositionSoFar > 0 && Index < NumSlots(); ++Index)
{
const SBoxPanel::FSlot& CurChild = Children[Index];
const EVisibility ChildVisibility = CurChild.GetWidget()->GetVisibility();
if (ChildVisibility != EVisibility::Collapsed)
{
const FVector2D ChildDesiredSize = CurChild.GetWidget()->GetDesiredSize();
PositionSoFar -= ChildDesiredSize.Y + CurChild.SlotPadding.Get().GetTotalSpaceAlong<Orient_Vertical>();
}
}
for (int32 Index = MaxNumVisible; Index < Children.Num(); )
{
if (StaticCastSharedRef<SWidgetStackItem>(Children[Index].GetWidget())->bIsFinished)
{
Children.RemoveAt(Index);
}
else
{
++Index;
}
}
}
}
