void CBaseView::OutputMsgLine( const char * line )
{
BeginNewLine( );
OutputMsgHeader( );
m_astrMsg.Add( line );
GetEditCtrl().ReplaceSel( line );
}
void SWrapBox::FChildArranger::Arrange()
{
int32 ChildIndex;
for (ChildIndex = 0; ChildIndex < WrapBox.Slots.Num(); ++ChildIndex)
{
const FSlot& Slot = WrapBox.Slots[ChildIndex];
const TSharedRef<SWidget>& Widget = Slot.GetWidget();
/*
* Simple utility lambda for determining if the current child index is the first child of the current line.
*/
const auto& IsFirstChildInCurrentLine = [&]() -> bool
{
return ChildIndex == IndexOfFirstChildInCurrentLine;
};
// Skip collapsed widgets.
if (Widget->GetVisibility() == EVisibility::Collapsed)
{
continue;
}
FArrangementData& ArrangementData = OngoingArrangementDataMap.Add(ChildIndex, FArrangementData());
// If there is no first child in the current line, we must be the first child.
if (IndexOfFirstChildInCurrentLine == INDEX_NONE)
{
IndexOfFirstChildInCurrentLine = ChildIndex;
}
/*
* Simple utility lambda for beginning a new line with the current child, updating it's offset for the new line.
*/
const auto& BeginNewLine = [&]()
{
FinalizeLine(ChildIndex - 1);
// Starting a new line.
IndexOfFirstChildInCurrentLine = ChildIndex;
// Update child's offset to new X and Y values for new line.
ArrangementData.SlotOffset.X = Offset.X;
ArrangementData.SlotOffset.Y = Offset.Y;
};
// Rule: If this child is not the first child in the line, "inner slot padding" needs to be injected left of it.
if (!IsFirstChildInCurrentLine())
{
Offset.X += WrapBox.InnerSlotPadding.X;
}
const FVector2D DesiredSizeOfSlot = Slot.SlotPadding.Get().GetDesiredSize() + Widget->GetDesiredSize();
// Populate arrangement data with default size and offset at right end of current line.
ArrangementData.SlotOffset.X = Offset.X;
ArrangementData.SlotOffset.Y = Offset.Y;
ArrangementData.SlotSize.X = DesiredSizeOfSlot.X;
ArrangementData.SlotSize.Y = DesiredSizeOfSlot.Y;
const float RightBoundOfChild = ArrangementData.SlotOffset.X + ArrangementData.SlotSize.X;
// Rule: If required due to a wrapping width under specified threshold, start a new line and allocate all of it to this child.
if (Slot.SlotFillLineWhenWidthLessThan.IsSet() && WrapBox.PreferredWidth.Get() < Slot.SlotFillLineWhenWidthLessThan.GetValue())
{
// Begin a new line if the current one isn't empty, because we demand a whole line to ourselves.
if (!IsFirstChildInCurrentLine())
{
BeginNewLine();
}
// Fill width of rest of wrap box.
ArrangementData.SlotSize.X = WrapBox.PreferredWidth.Get() - Offset.X;
}
// Rule: If the end of a child would go beyond the width to wrap at, it should move to a new line.
else if (RightBoundOfChild > WrapBox.PreferredWidth.Get())
{
// Begin a new line if the current one isn't empty, because we demand a new line.
if (!IsFirstChildInCurrentLine())
{
BeginNewLine();
}
}
// Update current line maximum height.
MaximumHeightInCurrentLine = FMath::Max(MaximumHeightInCurrentLine, ArrangementData.SlotSize.Y);
// Update offset to right bound of child.
Offset.X = ArrangementData.SlotOffset.X + ArrangementData.SlotSize.X;
}
// Attempt to finalize the final line if there are any children in it.
if (IndexOfFirstChildInCurrentLine != INDEX_NONE)
{
FinalizeLine(ChildIndex - 1);
}
}
