public void ResizeViewToContent(ItemView view, bool fitWidth, bool fitHeight)
{
var totalArea = view.GetUnclippedOuterRect().Get();
var contentArea = GetViewRenderArea(view,
!fitWidth && view.GetHorzScrollbar().IsVisible(),
!fitHeight && view.GetVertScrollbar().IsVisible());
var withScrollContentArea = GetViewRenderArea(view, true, true);
var frameSize = totalArea.Size - contentArea.Size;
var withScrollFrameSize = totalArea.Size - withScrollContentArea.Size;
var contentSize = new Sizef(view.GetRenderedMaxWidth(), view.GetRenderedTotalHeight());
var parentSize = view.GetParentPixelSize();
var maxSize =
new Sizef(parentSize.Width - CoordConverter.AsAbsolute(view.GetXPosition(), parentSize.Width),
parentSize.Height - CoordConverter.AsAbsolute(view.GetYPosition(), parentSize.Height));
var requiredSize = frameSize + contentSize + new Sizef(1, 1);
if (fitHeight && requiredSize.Height > maxSize.Height)
{
requiredSize.Height = maxSize.Height;
requiredSize.Width = Math.Min(maxSize.Width,
requiredSize.Width - frameSize.Width + withScrollFrameSize.Width);
}
if (fitWidth && requiredSize.Width > maxSize.Width)
{
requiredSize.Width = maxSize.Width;
requiredSize.Height = Math.Min(maxSize.Height,
requiredSize.Height - frameSize.Height + withScrollFrameSize.Height);
}
if (fitHeight)
{
view.SetHeight(new UDim(0, requiredSize.Height));
}
if (fitWidth)
{
view.SetWidth(new UDim(0, requiredSize.Width));
}
}
public Lunatics.Mathematics.Vector2 GetItemRenderStartPosition(ItemView view, Rectf itemsArea)
{
return(new Lunatics.Mathematics.Vector2(itemsArea.Left - view.GetHorzScrollbar().GetScrollPosition(),
itemsArea.Top - view.GetVertScrollbar().GetScrollPosition()));
}
// TOOD: public virtual ~ItemViewRenderer();
public virtual Rectf GetViewRenderArea(ItemView itemView)
{
return(GetViewRenderArea(itemView, itemView.GetHorzScrollbar().IsVisible(), itemView.GetVertScrollbar().IsVisible()));
}