public Rectangle RangeToVisibleRectangle(Range range)
{
if (range.IsEmpty())
{
return(Rectangle.Empty);
}
if (range.Start.Column < 0)
{
throw new ArgumentOutOfRangeException(string.Format("range.Start.Column was less than zero: {0}", range.Start.Column));
}
if (range.Start.Row < 0)
{
throw new ArgumentOutOfRangeException(string.Format("range.Start.Row was less than zero: {0}", range.Start.Row));
}
int firstRow = FindFirstVisibleRowFromRange(range);
if (firstRow < 0)
{
return(Rectangle.Empty);
}
int actualFixedRows = m_Grid.ActualFixedRows;
int actualFixedColumns = m_Grid.ActualFixedColumns;
int y = m_Grid.Rows.GetTop(firstRow);
if (m_Grid.IsRowHiddenUnderFixedRows(firstRow, true))
{
y = m_Grid.GetFixedAreaHeight();
}
int firstColumn = FindFirstVisibleColumnFromRange(range);
if (firstColumn < 0)
{
return(Rectangle.Empty);
}
int x = m_Grid.Columns.GetLeft(firstColumn);
if (IsColumnHiddenUnderFixedColumn(firstColumn, true))
{
x = m_Grid.GetFixedAreaWidth();
}
int lastColumn = range.End.Column;
if (range.End.Column != actualFixedColumns - 1 && m_Grid.IsColumnHiddenUnderFixedColumn(range.End.Column))
{
lastColumn = actualFixedColumns - 1;
}
int width = m_Grid.Columns.GetRight(lastColumn) - x;
int lastRow = range.End.Row;
if (range.End.Row != actualFixedRows - 1 && m_Grid.IsRowHiddenUnderFixedRows(range.End.Row))
{
lastRow = actualFixedRows - 1;
}
int height = m_Grid.Rows.GetBottom(lastRow) - y;
Size size = new Size(width, height);
if (size.IsEmpty)
{
return(Rectangle.Empty);
}
return(new Rectangle(new Point(x, y), size));
}