public bool GetScrollPositionToShowCell(Position position, List <int> visibleColumns, List <int> visibleRows, out Point newScrollPosition)
{
CellPositionType posType = m_Grid.GetPositionType(position);
Rectangle displayRectangle = m_Grid.DisplayRectangle;
bool isFixedLeft = posType == CellPositionType.FixedLeft || posType == CellPositionType.FixedTopLeft;
int x;
if (visibleColumns.Contains(position.Column)) //Is x visible
{
x = m_Grid.CustomScrollPosition.X;
}
else
{
if (isFixedLeft)
{
x = 0;
}
else
{
x = position.Column - m_Grid.ActualFixedColumns;
}
//Check if the scrollable positioin if not outside the valid area
int maxX = m_Grid.GetScrollColumns(displayRectangle.Width);
if (x > maxX)
{
x = maxX;
}
}
bool isFixedTop = posType == CellPositionType.FixedTop || posType == CellPositionType.FixedTopLeft;
int y;
if (visibleRows.Contains(position.Row)) //Is y visible
{
y = m_Grid.CustomScrollPosition.Y;
//[email protected]:CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
else
{
//MICK(15): add direction dependent procedure of finding y (and x should be too).
//It means that when you go from bottom to top, the selected item will be at top,
// (this already happens, so this part is not changed)
// when you go from top to bottom, the selected item will be at bottom,
// y (and x) value is adjusted accordingly
if (m_Grid.CustomScrollPosition.Y + m_Grid.ActualFixedRows > position.Row)
{
//MICK(16): direction bottom to top
if (isFixedTop)
{
y = 0;
}
else
{
y = position.Row - m_Grid.FixedRows;
}
//Check if the scrollable positioin if not outside the valid area
int maxY = m_Grid.GetScrollRows(displayRectangle.Height);
if (y > maxY)
{
y = maxY;
}
//[email protected]:CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//MICK(21)
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
else
{
//MICK(17): direction from top to bottom
y = m_Grid.GetTopVisibleRowFromBottomRow(position.Row) - m_Grid.ActualFixedRows;
//[email protected]: CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
}
newScrollPosition = new Point(x, y);
return(true);
}