SlotSizer GetNextSizer()
{
if (sizerCursor == sizers.Count)
{
var sizer = new SlotSizer();
sizers.Add(sizer);
AddVisualChild(sizer);
}
return(sizers[sizerCursor++]);
}
void ArrangeSlot(SlotData slotData, Point upperLeft, Size finalSize)
{
UVHelper uv = UVHelper.CreateInstance(slotData.Slot.Orientation);
Point runningUpperLeft = upperLeft;
double maxU = uv.U(runningUpperLeft) + uv.U(finalSize);
bool addSizer = false;
Slot previousSlot = null;
foreach (var child in slotData.Slot.Children)
{
if (addSizer)
{
SlotSizer sizer = GetNextSizer();
sizer.SizeDirection = slotData.Slot.Orientation;
sizer.Slot1 = previousSlot;
sizer.Slot2 = child;
sizer.Measure(uv.Size(SlotSpacing, uv.V(finalSize)));
sizer.Arrange(new Rect(uv.Point(uv.U(runningUpperLeft), uv.V(runningUpperLeft)), uv.Size(SlotSpacing, uv.V(finalSize))));
runningUpperLeft = uv.Point(Math.Min(maxU, uv.U(runningUpperLeft) + SlotSpacing), uv.V(runningUpperLeft));
}
var childSlot = slotTable[InternalGetSlotName(child)];
var childFinalSize = uv.Size(Math.Min(uv.U(finalSize), uv.U(childSlot.FinalSize)), uv.V(finalSize));
ArrangeSlot(childSlot, runningUpperLeft, childFinalSize);
runningUpperLeft = uv.Point(Math.Min(maxU, uv.U(runningUpperLeft) + uv.U(childFinalSize)), uv.V(runningUpperLeft));
addSizer = (SlotSpacing > 0);
previousSlot = child;
}
if (slotData.Elements != null)
{
foreach (UIElement element in slotData.Elements)
{
element.Arrange(new Rect(upperLeft, finalSize));
}
}
slotData.Slot.ActualSize = finalSize;
slotData.Slot.UpperLeft = upperLeft;
}