private void RebuildLayout(ColumnGroupLayoutNode node)
{
node.MinWidth = node.MaxWidth = node.Bounds.Width = node.OriginalWidth = 0.0f;
foreach (ColumnGroupLayoutNode child in node.Children)
{
child.Level = node.Level + 1;
this.RebuildLayout(child);
node.MinWidth += child.MinWidth;
if ((double)node.MaxWidth >= 0.0)
{
node.MaxWidth += child.MaxWidth;
}
if ((double)child.MaxWidth == 0.0)
{
node.MaxWidth = -1f;
}
node.Bounds.Width += child.Bounds.Width;
}
if ((double)node.MaxWidth == -1.0)
{
node.MaxWidth = 0.0f;
}
if (node.Rows != null && node.Children.Count == 0)
{
int num1 = 0;
node.MaxWidth = (float)int.MaxValue;
bool flag = false;
foreach (GridViewColumnGroupRow row in (Collection <GridViewColumnGroupRow>)node.Rows)
{
int num2 = 0;
int num3 = 0;
int num4 = 0;
foreach (string columnName in (Collection <string>)row.ColumnNames)
{
GridViewColumn column = (GridViewColumn)this.template.Columns[columnName];
if (this.owner.ColumnIsVisible(column) || this.owner.IgnoreColumnVisibility)
{
flag = true;
num2 += column.Width;
num3 += column.MinWidth;
if (num4 >= 0)
{
num4 += column.MaxWidth;
}
if (column.MaxWidth == 0)
{
num4 = -1;
}
ColumnGroupColumnData columnGroupColumnData = new ColumnGroupColumnData();
columnGroupColumnData.Row = num1;
columnGroupColumnData.Bounds.Width = (float)column.Width;
columnGroupColumnData.OriginalWidth = (float)column.Width;
columnGroupColumnData.MinWidth = (float)column.MinWidth;
columnGroupColumnData.MaxWidth = (float)column.MaxWidth;
columnGroupColumnData.ConstrainWidth();
node.ColumnData.Add(column, columnGroupColumnData);
}
}
node.Bounds.Width = Math.Max(node.Bounds.Width, (float)num2);
node.MinWidth = Math.Max(node.MinWidth, (float)num3);
node.MaxWidth = num4 != -1 ? Math.Min(node.MaxWidth, (float)num4) : node.MaxWidth;
node.ConstrainWidth();
++num1;
}
node.MaxWidth = (double)node.MaxWidth == 2147483648.0 ? 0.0f : node.MaxWidth;
if (!flag && this.owner.ShowEmptyGroups)
{
node.Bounds.Width = 50f;
}
}
else
{
if (node.Children.Count == 0 && (node.Rows == null || node.Rows.Count == 0) && this.owner.ShowEmptyGroups)
{
node.Bounds.Width = 50f;
}
this.groupRowLevels = Math.Max(this.groupRowLevels, node.Level);
}
node.OriginalWidth = node.Bounds.Width;
}
