public override void EndLayout(LayoutRequest request, PointF origin, SizeF allocation)
{
if (ownsView)
{
View.Frame = new RectangleF(origin, allocation);
base.EndLayout(request, PointF.Empty, allocation);
}
else
{
base.EndLayout(request, origin, allocation);
}
}
public virtual void EndLayout(LayoutRequest request, PointF origin, SizeF allocation)
{
var frame = new RectangleF(origin.X + PadLeft, origin.Y + PadBottom,
allocation.Width - PadLeft - PadRight, allocation.Height - PadTop - PadBottom);
if (allocation.Height > request.Size.Height)
{
if (YAlign != LayoutAlign.Fill)
{
frame.Height = request.Size.Height - PadTop - PadBottom;
if (YAlign == LayoutAlign.Center)
{
frame.Y += (allocation.Height - request.Size.Height) / 2;
}
else if (YAlign == LayoutAlign.End)
{
frame.Y += (allocation.Height - request.Size.Height);
}
}
}
if (allocation.Width > request.Size.Width)
{
if (XAlign != LayoutAlign.Fill)
{
frame.Width = request.Size.Width - PadLeft - PadRight;
if (XAlign == LayoutAlign.Center)
{
frame.X += (allocation.Width - request.Size.Width) / 2;
}
else if (XAlign == LayoutAlign.End)
{
frame.X += (allocation.Width - request.Size.Width);
}
}
}
OnLayoutEnded(frame);
}
public virtual void EndLayout(LayoutRequest request, PointF origin, SizeF allocation)
{
var childRequests = ((ContainerLayoutRequest)request).ChildRequests;
allocation = new SizeF(allocation.Width - PadLeft - PadRight, allocation.Height - PadBottom - PadTop);
origin = new PointF(origin.X + PadLeft, origin.Y + PadBottom);
var size = request.Size;
size.Height -= (PadTop + PadBottom);
size.Width -= (PadLeft + PadRight);
int wExpandCount = 0;
int hExpandCount = 0;
int visibleCount = 0;
foreach (var childRequest in childRequests)
{
if (childRequest.Visible)
{
visibleCount++;
}
else
{
continue;
}
if (childRequest.ExpandWidth)
{
wExpandCount++;
}
if (childRequest.ExpandHeight)
{
hExpandCount++;
}
}
float wExpand = 0;
if (allocation.Width > size.Width)
{
wExpand = allocation.Width - size.Width;
if (wExpandCount > 0)
{
wExpand /= wExpandCount;
}
}
float hExpand = 0;
if (allocation.Height > size.Height)
{
hExpand = allocation.Height - size.Height;
if (hExpandCount > 0)
{
hExpand /= hExpandCount;
}
}
if (Direction == LayoutDirection.Horizontal)
{
float pos = PadLeft;
if (wExpandCount == 0)
{
if (Align == LayoutAlign.End)
{
pos += wExpand;
}
else if (Align == LayoutAlign.Center)
{
pos += wExpand / 2;
}
}
for (int i = 0; i < childRequests.Count; i++)
{
var child = children[i];
var childReq = childRequests[i];
if (!childReq.Visible)
{
continue;
}
var childSize = new SizeF(childReq.Size.Width, allocation.Height);
if (childReq.ExpandWidth)
{
childSize.Width += wExpand;
}
else if (hExpandCount == 0 && Align == LayoutAlign.Fill)
{
childSize.Width += wExpand / visibleCount;
}
child.EndLayout(childReq, new PointF(pos, origin.Y), childSize);
pos += childSize.Width + Spacing;
}
}
else
{
float pos = PadBottom;
if (hExpandCount == 0)
{
if (Align == LayoutAlign.End)
{
pos += hExpand;
}
else if (Align == LayoutAlign.Center)
{
pos += hExpand / 2;
}
}
for (int i = 0; i < childRequests.Count; i++)
{
var child = children[i];
var childReq = childRequests[i];
if (!childReq.Visible)
{
continue;
}
var childSize = new SizeF(allocation.Width, childReq.Size.Height);
if (childReq.ExpandHeight)
{
childSize.Height += hExpand;
}
else if (hExpandCount == 0 && Align == LayoutAlign.Fill)
{
childSize.Height += hExpand / visibleCount;
}
child.EndLayout(childReq, new PointF(origin.X, pos), childSize);
pos += childSize.Height + Spacing;
}
}
}
