ant-design-blazor/components/table/ColumnContext.cs

100 lines
2.5 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AntDesign
{
public class ColumnContext
{
public IList<IColumn> Columns { get; set; } = new List<IColumn>();
public IList<IColumn> HeaderColumns { get; set; } = new List<IColumn>();
private int CurrentColIndex { get; set; }
private ITable _table;
public ColumnContext(ITable table)
{
_table = table;
}
public void AddColumn(IColumn column)
{
if (column == null)
{
return;
}
column.ColIndex = CurrentColIndex++;
Columns.Add(column);
}
public void AddHeaderColumn(IColumn column)
{
if (column == null)
{
return;
}
if (++CurrentColIndex >= Columns.Count)
{
CurrentColIndex = 0;
}
column.ColIndex = CurrentColIndex;
HeaderColumns.Add(column);
}
public void AddColGroup(IColumn column)
{
if (column == null)
{
return;
}
if (++CurrentColIndex >= Columns.Count)
{
CurrentColIndex = 0;
}
column.ColIndex = CurrentColIndex;
if (_table.ScrollX != null && Columns.Any(x => x.Width == null))
{
var zeroWidthCols = Columns.Where(x => x.Width == null).ToArray();
var totalWidth = string.Join(" + ", Columns.Where(x => x.Width != null).Select(x => (CssSizeLength)x.Width));
foreach (var col in Columns.Where(x => x.Width == null))
{
col.Width = $"calc(({(CssSizeLength)_table.ScrollX} - ({totalWidth}) + 3px) / {zeroWidthCols.Length})";
}
}
if (column.Width == null)
{
var col = Columns.FirstOrDefault(x => x.ColIndex == column.ColIndex);
if (col != null)
{
column.Width = col.Width;
}
}
}
public void AddRowColumn(IColumn column)
{
if (column == null)
{
return;
}
if (++CurrentColIndex >= Columns.Count)
{
CurrentColIndex = 0;
}
column.ColIndex = CurrentColIndex;
}
}
}