// Figure out how much to adjust the top of box, which would be the input value of top
// except for overlapping margins, if in fact margin overlaps the previous box.
internal int AdjustTopForMargins(int top, LayoutInfo transform, Box prevBox, Box box)
{
if (prevBox != null)
{
top -= Math.Min(transform.MpToPixelsY(prevBox.Style.Margins.BottomMp),
transform.MpToPixelsY(box.Style.Margins.TopMp));
}
return(top);
}
// Figure out how much to adjust the top of box, which would be the input value of top
// except for overlapping margins, if in fact margin overlaps the previous box.
internal int AdjustTopForMargins(int top, LayoutInfo transform, Box prevBox, Box box)
{
if (prevBox != null)
{
top -= Math.Min(transform.MpToPixelsY(prevBox.Style.Margins.BottomMp),
transform.MpToPixelsY(box.Style.Margins.TopMp));
}
return top;
}
public override void Layout(LayoutInfo transform)
{
// Height can only be a guess. This will do for a while, eventually we'll implement a way for the client
// to control estimating.
Height = transform.MpToPixelsY(DefaultItemHeight * 1000) * m_items.Count;
// Set the width equal to all available. This faciliates invalidate rectangles that will certainly cover
// whatever size the real box turns out to be, if this gets scrolled into view and invalidated.
Width = transform.MaxWidth;
}
public override void Layout(LayoutInfo transform)
{
Height = transform.MpToPixelsY(MpHeight) + SurroundHeight(transform);
Width = transform.MpToPixelsX(MpWidth) + SurroundWidth(transform);
}
public override void Layout(LayoutInfo transform)
{
Height = transform.MpToPixelsY(MpHeight) + SurroundHeight(transform);
Width = transform.MpToPixelsX(MpWidth) + SurroundWidth(transform);
}
/// <summary>
/// Return the estimated height of the indicated item. Index is relative to m_items, not necessarily
/// to the total collection of items in the list managed by the hookup.
/// Enhance JohnT: eventually we will allow the client to supply a non-trivial height estimator.
/// </summary>
int EstimatedItemHeight(LayoutInfo transform, int index)
{
return(transform.MpToPixelsY(DefaultItemHeight * 1000));
}