// Token: 0x060048D3 RID: 18643 RVA: 0x0014A864 File Offset: 0x00148A64
public static void OnColumnWidthChanged(IProvideDataGridColumn cell, DependencyPropertyChangedEventArgs e)
{
UIElement uielement = (UIElement)cell;
DataGridColumn column = cell.Column;
bool flag = cell is DataGridColumnHeader;
if (column != null)
{
DataGridLength width = column.Width;
if (width.IsAuto || (!flag && width.IsSizeToCells) || (flag && width.IsSizeToHeader))
{
DataGridLength dataGridLength = (DataGridLength)e.OldValue;
double num;
if (dataGridLength.UnitType != width.UnitType)
{
double constraintWidth = column.GetConstraintWidth(flag);
if (!DoubleUtil.AreClose(uielement.DesiredSize.Width, constraintWidth))
{
uielement.InvalidateMeasure();
uielement.Measure(new Size(constraintWidth, double.PositiveInfinity));
}
num = uielement.DesiredSize.Width;
}
else
{
num = dataGridLength.DesiredValue;
}
if (DoubleUtil.IsNaN(width.DesiredValue) || DoubleUtil.LessThan(width.DesiredValue, num))
{
column.SetWidthInternal(new DataGridLength(width.Value, width.UnitType, num, width.DisplayValue));
}
}
}
}
/// <summary>
/// Helper method which returns the parent DataGridCellsPanel for a cell
/// </summary>
/// <param name="cell">The cell or header.</param>
/// <returns>Parent panel of the given cell or header</returns>
public static DataGridCellsPanel GetParentPanelForCell(IProvideDataGridColumn cell)
{
Debug.Assert((cell is DataGridCell) || (cell is DataGridColumnHeader), "provideColumn should be one of the cell or header containers.");
UIElement element = (UIElement)cell;
return(VisualTreeHelper.GetParent(element) as DataGridCellsPanel);
}
// Token: 0x060048D6 RID: 18646 RVA: 0x0014A9C8 File Offset: 0x00148BC8
public static double GetParentCellsPanelHorizontalOffset(IProvideDataGridColumn cell)
{
DataGridCellsPanel parentPanelForCell = DataGridHelper.GetParentPanelForCell(cell);
if (parentPanelForCell != null)
{
return(parentPanelForCell.ComputeCellsPanelHorizontalOffset());
}
return(0.0);
}
// Token: 0x060048D4 RID: 18644 RVA: 0x0014A980 File Offset: 0x00148B80
public static Geometry GetFrozenClipForCell(IProvideDataGridColumn cell)
{
DataGridCellsPanel parentPanelForCell = DataGridHelper.GetParentPanelForCell(cell);
if (parentPanelForCell != null)
{
return(parentPanelForCell.GetFrozenClipForChild((UIElement)cell));
}
return(null);
}
/// <summary>
/// Invalidates a cell's panel if its column's width changes sufficiently.
/// </summary>
/// <param name="cell">The cell or header.</param>
/// <param name="e"></param>
public static void OnColumnWidthChanged(IProvideDataGridColumn cell, DependencyPropertyChangedEventArgs e)
{
Debug.Assert((cell is DataGridCell) || (cell is DataGridColumnHeader), "provideColumn should be one of the cell or header containers.");
UIElement element = (UIElement)cell;
DataGridColumn column = cell.Column;
bool isColumnHeader = (cell is DataGridColumnHeader);
if (column != null)
{
// determine the desired value of width for auto kind columns
DataGridLength width = column.Width;
if (width.IsAuto ||
(!isColumnHeader && width.IsSizeToCells) ||
(isColumnHeader && width.IsSizeToHeader))
{
DataGridLength oldWidth = (DataGridLength)e.OldValue;
double desiredWidth = 0.0;
if (oldWidth.UnitType != width.UnitType)
{
double constraintWidth = column.GetConstraintWidth(isColumnHeader);
if (!DoubleUtil.AreClose(element.DesiredSize.Width, constraintWidth))
{
element.InvalidateMeasure();
element.Measure(new Size(constraintWidth, double.PositiveInfinity));
}
desiredWidth = element.DesiredSize.Width;
}
else
{
desiredWidth = oldWidth.DesiredValue;
}
if (DoubleUtil.IsNaN(width.DesiredValue) ||
DoubleUtil.LessThan(width.DesiredValue, desiredWidth))
{
column.SetWidthInternal(new DataGridLength(width.Value, width.UnitType, desiredWidth, width.DisplayValue));
}
}
}
}
// Token: 0x060048D5 RID: 18645 RVA: 0x0014A9A8 File Offset: 0x00148BA8
public static DataGridCellsPanel GetParentPanelForCell(IProvideDataGridColumn cell)
{
UIElement reference = (UIElement)cell;
return(VisualTreeHelper.GetParent(reference) as DataGridCellsPanel);
}