public void MoveListBy(int count)
{
int height = _rowHeight.Compute(Bounds.Height) + _separatorHeight.Compute(Bounds.Height);
_scrollingService.ScrollPositionY += height * count;
_scrollingService.Process();
}
public void Show(object item)
{
UiView view;
if (_bindingToElement.TryGetValue(item, out view))
{
if (_vertical)
{
if (view.Bounds.Bottom > Bounds.Height)
{
_scrollingService.ScrollPositionY += view.Bounds.Bottom - Bounds.Height;
}
if (view.Bounds.Top < 0)
{
_scrollingService.ScrollPositionY += view.Bounds.Top;
}
_scrollingService.Process();
}
else
{
if (view.Bounds.Right > Bounds.Width)
{
_scrollingService.ScrollPositionX += view.Bounds.Right - Bounds.Width;
}
if (view.Bounds.Left < 0)
{
_scrollingService.ScrollPositionX += view.Bounds.Left;
}
_scrollingService.Process();
}
}
}
public void Show(object item, int margin = 0)
{
UiView view;
if (_bindingToElement.TryGetValue(item, out view))
{
if (_vertical)
{
Rectangle bounds = view.Bounds;
bounds.Y -= margin;
bounds.Height += margin * 2;
if (bounds.Top < 0)
{
_scrollingService.ScrollPositionY += bounds.Top;
ShouldRecalcLayout();
}
else if (bounds.Bottom > Bounds.Height)
{
if (bounds.Height > Bounds.Height)
{
_scrollingService.ScrollPositionY += bounds.Top;
ShouldRecalcLayout();
}
else
{
_scrollingService.ScrollPositionY += bounds.Bottom - Bounds.Height;
ShouldRecalcLayout();
}
}
_scrollingService.Process();
}
else
{
Rectangle bounds = view.Bounds;
bounds.X -= margin;
bounds.Width += margin * 2;
if (bounds.Left < 0)
{
_scrollingService.ScrollPositionX += bounds.Left;
ShouldRecalcLayout();
}
else if (bounds.Right > Bounds.Width)
{
if (bounds.Width > Bounds.Width)
{
_scrollingService.ScrollPositionX += bounds.Left;
ShouldRecalcLayout();
}
else
{
_scrollingService.ScrollPositionX += bounds.Right - Bounds.Width;
ShouldRecalcLayout();
}
}
_scrollingService.Process();
}
}
}