private void HookupItemsControlKeyboardEvent(TreeGridColumnHeader header)
{
if (this._itemsControl != null)
{
this._itemsControl.KeyDown += new KeyEventHandler(header.OnColumnHeaderKeyDown);
}
}
/// <summary>
/// 为指定列生成 header 并添加到 InternalChildren 的索引 index 处。
/// </summary>
/// <param name="column"></param>
/// <param name="index"></param>
/// <returns></returns>
private TreeGridColumnHeader CreateAndInsertHeader(TreeGridColumn column, int index)
{
object header = column.Header;
var gridViewColumnHeader = header as TreeGridColumnHeader;
if (header != null)
{
var dependencyObject = header as DependencyObject;
if (dependencyObject != null)
{
var visual = dependencyObject as Visual;
if (visual != null)
{
var visual2 = VisualTreeHelper.GetParent(visual) as Visual;
if (visual2 != null)
{
if (gridViewColumnHeader != null)
{
var gridViewHeaderRowPresenter = visual2 as TreeGridHeaderRowPresenter;
if (gridViewHeaderRowPresenter != null)
{
MSInternal.RemoveNoVerify(gridViewHeaderRowPresenter.UIChildren, gridViewColumnHeader);
}
}
else
{
var gridViewColumnHeader2 = visual2 as TreeGridColumnHeader;
if (gridViewColumnHeader2 != null)
{
gridViewColumnHeader2.ClearValue(ContentControl.ContentProperty);
}
}
}
}
var parent = LogicalTreeHelper.GetParent(dependencyObject);
if (parent != null)
{
MSInternal.RemoveLogicalChild(parent, header);
}
}
}
if (gridViewColumnHeader == null)
{
gridViewColumnHeader = new TreeGridColumnHeader();
gridViewColumnHeader.IsInternalGenerated = true;
}
gridViewColumnHeader.SetValue(TreeGridColumnHeader.ColumnPropertyKey, column);
this.HookupItemsControlKeyboardEvent(gridViewColumnHeader);
base.UIChildren.Insert(index, gridViewColumnHeader);
this.UpdateHeader(gridViewColumnHeader);
this._gvHeadersValid = false;
return(gridViewColumnHeader);
}
/// <summary>
/// 更新指定 Header 的指定依赖属性。
/// </summary>
/// <param name="header"></param>
/// <param name="targetDP"></param>
/// <param name="columnDP"></param>
/// <param name="gvDP"></param>
private void UpdateHeaderProperty(TreeGridColumnHeader header, DependencyProperty targetDP, DependencyProperty columnDP, DependencyProperty gvDP)
{
if (gvDP == TreeGridHeaderRowPresenter.ColumnHeaderContainerStyleProperty && header.Role == TreeGridColumnHeaderRole.Padding)
{
Style columnHeaderContainerStyle = this.ColumnHeaderContainerStyle;
if (columnHeaderContainerStyle != null && !columnHeaderContainerStyle.TargetType.IsAssignableFrom(typeof(TreeGridColumnHeader)))
{
header.Style = null;
return;
}
}
object value = null;
var column = header.Column;
if (column != null && columnDP != null)
{
value = column.GetValue(columnDP);
}
if (value == null)
{
value = base.GetValue(gvDP);
}
header.UpdateProperty(targetDP, value);
}
private TreeGridColumnHeader FindHeaderByColumn(TreeGridColumn column)
{
var columns = base.Columns;
UIElementCollection internalChildren = base.UIChildren;
if (internalChildren.Count > columns.Count)
{
int num = columns.IndexOf(column);
if (num != -1)
{
int visualIndex = this.GetVisualIndex(num);
TreeGridColumnHeader gridViewColumnHeader = internalChildren[visualIndex] as TreeGridColumnHeader;
if (gridViewColumnHeader.Column == column)
{
return(gridViewColumnHeader);
}
for (int i = 1; i < internalChildren.Count; i++)
{
gridViewColumnHeader = (internalChildren[i] as TreeGridColumnHeader);
if (gridViewColumnHeader != null && gridViewColumnHeader.Column == column)
{
return(gridViewColumnHeader);
}
}
}
}
return(null);
}
private void UpdateFloatingHeader(TreeGridColumnHeader srcHeader)
{
this._floatingHeader.Style = srcHeader.Style;
this._floatingHeader.FloatSourceHeader = srcHeader;
this._floatingHeader.Width = srcHeader.ActualWidth;
this._floatingHeader.Height = srcHeader.ActualHeight;
this._floatingHeader.SetValue(TreeGridColumnHeader.ColumnPropertyKey, srcHeader.Column);
this._floatingHeader.Visibility = Visibility.Hidden;
this._floatingHeader.MinWidth = srcHeader.MinWidth;
this._floatingHeader.MinHeight = srcHeader.MinHeight;
object obj = srcHeader.ReadLocalValue(ContentControl.ContentTemplateProperty);
if (obj != DependencyProperty.UnsetValue && obj != null)
{
this._floatingHeader.ContentTemplate = srcHeader.ContentTemplate;
}
object obj2 = srcHeader.ReadLocalValue(ContentControl.ContentTemplateSelectorProperty);
if (obj2 != DependencyProperty.UnsetValue && obj2 != null)
{
this._floatingHeader.ContentTemplateSelector = srcHeader.ContentTemplateSelector;
}
if (!(srcHeader.Content is Visual))
{
this._floatingHeader.Content = srcHeader.Content;
}
}
internal void UpdateHeaderProperty(TreeGridColumnHeader header, DependencyProperty property)
{
DependencyProperty gvDP;
DependencyProperty columnDP;
DependencyProperty targetDP;
GetMatchingDPs(property, out gvDP, out columnDP, out targetDP);
this.UpdateHeaderProperty(header, targetDP, columnDP, gvDP);
}
private void OnHeaderLabelChanged(DependencyPropertyChangedEventArgs e)
{
var value = (string)e.NewValue;
_header = new TreeGridColumnHeader
{
Content = value
};
this.Header = _header;
}
private void UpdateHeader(TreeGridColumnHeader header)
{
this.UpdateHeaderContent(header);
int i = 0;
int num = s_DPList[0].Length;
while (i < num)
{
this.UpdateHeaderProperty(header, s_DPList[2][i], s_DPList[1][i], s_DPList[0][i]);
i++;
}
}
private void RemoveHeader(TreeGridColumnHeader header, int index)
{
this._gvHeadersValid = false;
if (header != null)
{
base.UIChildren.Remove(header);
}
else
{
header = (TreeGridColumnHeader)base.UIChildren[index];
base.UIChildren.RemoveAt(index);
}
this.UnhookItemsControlKeyboardEvent(header);
}
private void BuildHeaderLinks()
{
TreeGridColumnHeader previousVisualHeader = null;
for (int i = 0; i < base.Columns.Count; i++)
{
TreeGridColumnHeader gridViewColumnHeader = (TreeGridColumnHeader)base.UIChildren[this.GetVisualIndex(i)];
gridViewColumnHeader.PreviousVisualHeader = previousVisualHeader;
previousVisualHeader = gridViewColumnHeader;
}
if (this._paddingHeader != null)
{
this._paddingHeader.PreviousVisualHeader = previousVisualHeader;
}
}
private void PrepareHeaderDrag(TreeGridColumnHeader header, Point pos, Point relativePos, bool cancelInvoke)
{
if (header.Role == TreeGridColumnHeaderRole.Normal)
{
this._prepareDragging = true;
this._isHeaderDragging = false;
this._draggingSrcHeader = header;
this._startPos = pos;
this._relativeStartPos = relativePos;
if (!cancelInvoke)
{
this._startColumnIndex = this.FindIndexByPosition(this._startPos, false);
}
}
}
private void UpdateHeaderContent(TreeGridColumnHeader header)
{
if (header != null && header.IsInternalGenerated)
{
TreeGridColumn column = header.Column;
if (column != null)
{
if (column.Header == null)
{
header.ClearValue(ContentControl.ContentProperty);
return;
}
header.Content = column.Header;
}
}
}
private void AddPaddingColumnHeader()
{
var header = new TreeGridColumnHeader();
header.IsInternalGenerated = true;
header.SetValue(TreeGridColumnHeader.RolePropertyKey, TreeGridColumnHeaderRole.Padding);
header.Content = null;
header.ContentTemplate = null;
header.ContentTemplateSelector = null;
header.MinWidth = 0.0;
header.Padding = new Thickness(0.0);
header.Width = double.NaN;
header.HorizontalAlignment = HorizontalAlignment.Stretch;
base.UIChildren.Add(header);
this._paddingHeader = header;
}
private void AddFloatingHeader(TreeGridColumnHeader srcHeader)
{
Type type = srcHeader != null?srcHeader.GetType() : typeof(TreeGridColumnHeader);
TreeGridColumnHeader header;
try
{
header = Activator.CreateInstance(type) as TreeGridColumnHeader;
}
catch (MissingMethodException innerException)
{
throw new ArgumentException("ListView_MissingParameterlessConstructor", innerException);
}
header.IsInternalGenerated = true;
header.SetValue(TreeGridColumnHeader.RolePropertyKey, TreeGridColumnHeaderRole.Floating);
header.Visibility = Visibility.Hidden;
base.UIChildren.Add(header);
this._floatingHeader = header;
}
private void UpdateHeaderContent(TreeGridColumnHeader header)
{
if (header != null && header.IsInternalGenerated)
{
TreeGridColumn column = header.Column;
if (column != null)
{
if (column.Header == null)
{
header.ClearValue(ContentControl.ContentProperty);
return;
}
header.Content = column.Header;
}
}
}
internal void UpdateHeaderProperty(TreeGridColumnHeader header, DependencyProperty property)
{
DependencyProperty gvDP;
DependencyProperty columnDP;
DependencyProperty targetDP;
GetMatchingDPs(property, out gvDP, out columnDP, out targetDP);
this.UpdateHeaderProperty(header, targetDP, columnDP, gvDP);
}
/// <summary>
/// 更新指定 Header 的指定依赖属性。
/// </summary>
/// <param name="header"></param>
/// <param name="targetDP"></param>
/// <param name="columnDP"></param>
/// <param name="gvDP"></param>
private void UpdateHeaderProperty(TreeGridColumnHeader header, DependencyProperty targetDP, DependencyProperty columnDP, DependencyProperty gvDP)
{
if (gvDP == TreeGridHeaderRowPresenter.ColumnHeaderContainerStyleProperty && header.Role == TreeGridColumnHeaderRole.Padding)
{
Style columnHeaderContainerStyle = this.ColumnHeaderContainerStyle;
if (columnHeaderContainerStyle != null && !columnHeaderContainerStyle.TargetType.IsAssignableFrom(typeof(TreeGridColumnHeader)))
{
header.Style = null;
return;
}
}
object value = null;
var column = header.Column;
if (column != null && columnDP != null)
{
value = column.GetValue(columnDP);
}
if (value == null)
{
value = base.GetValue(gvDP);
}
header.UpdateProperty(targetDP, value);
}
private void AddPaddingColumnHeader()
{
var header = new TreeGridColumnHeader();
header.IsInternalGenerated = true;
header.SetValue(TreeGridColumnHeader.RolePropertyKey, TreeGridColumnHeaderRole.Padding);
header.Content = null;
header.ContentTemplate = null;
header.ContentTemplateSelector = null;
header.MinWidth = 0.0;
header.Padding = new Thickness(0.0);
header.Width = double.NaN;
header.HorizontalAlignment = HorizontalAlignment.Stretch;
base.UIChildren.Add(header);
this._paddingHeader = header;
}
private void AddFloatingHeader(TreeGridColumnHeader srcHeader)
{
Type type = srcHeader != null ? srcHeader.GetType() : typeof(TreeGridColumnHeader);
TreeGridColumnHeader header;
try
{
header = Activator.CreateInstance(type) as TreeGridColumnHeader;
}
catch (MissingMethodException innerException)
{
throw new ArgumentException("ListView_MissingParameterlessConstructor", innerException);
}
header.IsInternalGenerated = true;
header.SetValue(TreeGridColumnHeader.RolePropertyKey, TreeGridColumnHeaderRole.Floating);
header.Visibility = Visibility.Hidden;
base.UIChildren.Add(header);
this._floatingHeader = header;
}
/// <summary>
/// 为指定列生成 header 并添加到 InternalChildren 的索引 index 处。
/// </summary>
/// <param name="column"></param>
/// <param name="index"></param>
/// <returns></returns>
private TreeGridColumnHeader CreateAndInsertHeader(TreeGridColumn column, int index)
{
object header = column.Header;
var gridViewColumnHeader = header as TreeGridColumnHeader;
if (header != null)
{
var dependencyObject = header as DependencyObject;
if (dependencyObject != null)
{
var visual = dependencyObject as Visual;
if (visual != null)
{
var visual2 = VisualTreeHelper.GetParent(visual) as Visual;
if (visual2 != null)
{
if (gridViewColumnHeader != null)
{
var gridViewHeaderRowPresenter = visual2 as TreeGridHeaderRowPresenter;
if (gridViewHeaderRowPresenter != null)
{
MSInternal.RemoveNoVerify(gridViewHeaderRowPresenter.UIChildren, gridViewColumnHeader);
}
}
else
{
var gridViewColumnHeader2 = visual2 as TreeGridColumnHeader;
if (gridViewColumnHeader2 != null)
{
gridViewColumnHeader2.ClearValue(ContentControl.ContentProperty);
}
}
}
}
var parent = LogicalTreeHelper.GetParent(dependencyObject);
if (parent != null)
{
MSInternal.RemoveLogicalChild(parent, header);
}
}
}
if (gridViewColumnHeader == null)
{
gridViewColumnHeader = new TreeGridColumnHeader();
gridViewColumnHeader.IsInternalGenerated = true;
}
gridViewColumnHeader.SetValue(TreeGridColumnHeader.ColumnPropertyKey, column);
this.HookupItemsControlKeyboardEvent(gridViewColumnHeader);
base.UIChildren.Insert(index, gridViewColumnHeader);
this.UpdateHeader(gridViewColumnHeader);
this._gvHeadersValid = false;
return gridViewColumnHeader;
}
private void HookupItemsControlKeyboardEvent(TreeGridColumnHeader header)
{
if (this._itemsControl != null)
{
this._itemsControl.KeyDown += new KeyEventHandler(header.OnColumnHeaderKeyDown);
}
}
private void PrepareHeaderDrag(TreeGridColumnHeader header, Point pos, Point relativePos, bool cancelInvoke)
{
if (header.Role == TreeGridColumnHeaderRole.Normal)
{
this._prepareDragging = true;
this._isHeaderDragging = false;
this._draggingSrcHeader = header;
this._startPos = pos;
this._relativeStartPos = relativePos;
if (!cancelInvoke)
{
this._startColumnIndex = this.FindIndexByPosition(this._startPos, false);
}
}
}
private void RemoveHeader(TreeGridColumnHeader header, int index)
{
this._gvHeadersValid = false;
if (header != null)
{
base.UIChildren.Remove(header);
}
else
{
header = (TreeGridColumnHeader)base.UIChildren[index];
base.UIChildren.RemoveAt(index);
}
this.UnhookItemsControlKeyboardEvent(header);
}
private void UpdateHeader(TreeGridColumnHeader header)
{
this.UpdateHeaderContent(header);
int i = 0;
int num = s_DPList[0].Length;
while (i < num)
{
this.UpdateHeaderProperty(header, s_DPList[2][i], s_DPList[1][i], s_DPList[0][i]);
i++;
}
}
private void OnHeaderLabelChanged(DependencyPropertyChangedEventArgs e)
{
var value = (string)e.NewValue;
_header = new TreeGridColumnHeader
{
Content = value
};
this.Header = _header;
}
private void UpdateFloatingHeader(TreeGridColumnHeader srcHeader)
{
this._floatingHeader.Style = srcHeader.Style;
this._floatingHeader.FloatSourceHeader = srcHeader;
this._floatingHeader.Width = srcHeader.ActualWidth;
this._floatingHeader.Height = srcHeader.ActualHeight;
this._floatingHeader.SetValue(TreeGridColumnHeader.ColumnPropertyKey, srcHeader.Column);
this._floatingHeader.Visibility = Visibility.Hidden;
this._floatingHeader.MinWidth = srcHeader.MinWidth;
this._floatingHeader.MinHeight = srcHeader.MinHeight;
object obj = srcHeader.ReadLocalValue(ContentControl.ContentTemplateProperty);
if (obj != DependencyProperty.UnsetValue && obj != null)
{
this._floatingHeader.ContentTemplate = srcHeader.ContentTemplate;
}
object obj2 = srcHeader.ReadLocalValue(ContentControl.ContentTemplateSelectorProperty);
if (obj2 != DependencyProperty.UnsetValue && obj2 != null)
{
this._floatingHeader.ContentTemplateSelector = srcHeader.ContentTemplateSelector;
}
if (!(srcHeader.Content is Visual))
{
this._floatingHeader.Content = srcHeader.Content;
}
}
