/// <summary>
/// Returns default top-level columns for tree control.
/// </summary>
/// <returns>Returns array list of ColumnInfo objects.</returns>
protected override NodeColumnInfo GetDefaultColumnInfo()
{
// There are no columns in Tile view
List<ColumnInfo> ci = new List<ColumnInfo>();
NodeColumnInfo info = new NodeColumnInfo(ci, false);
return info;
}
/// <summary>
/// Returns column information for a given node.
/// </summary>
/// <param name="node">Node to return column information for</param>
/// <returns>Returns array list of ColumnInfo objects or null if there are no columns defined.</returns>
protected virtual NodeColumnInfo GetNodeColumnInfo(Node node)
{
if (!node.HasColumns)
{
return null;
}
List<ColumnInfo> ci = new List<ColumnInfo>();
NodeColumnInfo info = new NodeColumnInfo(ci, false);
ColumnHeaderCollection columns = node.NodesColumns;
for (int i = 0; i < columns.Count; i++)
{
int columnIndex = columns.DisplayIndexMap[i];
ColumnHeader h = columns[columnIndex];
ColumnInfo columnInfo = new ColumnInfo(h.Bounds.Width, h.Visible, h, columnIndex);
ci.Add(columnInfo);
info.HasAutoSizeColumn |= columnInfo.AutoSize;
}
return info;
}
/// <summary>
/// Returns default top-level columns for tree control.
/// </summary>
/// <returns>Returns array list of ColumnInfo objects.</returns>
protected virtual NodeColumnInfo GetDefaultColumnInfo()
{
List<ColumnInfo> ci = new List<ColumnInfo>();
NodeColumnInfo info = new NodeColumnInfo(ci, false);
ColumnHeaderCollection columns=m_Tree.Columns;
//int treeWidth = m_Tree.ClientRectangle.Width;
if(columns!=null)
{
for (int i = 0; i < columns.Count; i++)
{
int columnIndex = columns.DisplayIndexMap[i];
ColumnHeader h = columns[columnIndex];
ColumnInfo columnInfo = new ColumnInfo(h.Bounds.Width, h.Visible, h, columnIndex);
ci.Add(columnInfo);
info.HasAutoSizeColumn |= columnInfo.AutoSize;
}
}
return info;
}
private Rectangle ProcessChildNodes(NodeLayoutContextInfo layoutInfo, Node node, int nodeVerticalSpacing, NodeColumnInfo childColumns)
{
Rectangle childNodesBounds = new Rectangle(layoutInfo.Left, layoutInfo.Top, 0, 0);
foreach (Node childNode in node.Nodes)
{
if (!childNode.Visible) continue;
layoutInfo.ContextNode = childNode;
layoutInfo.ChildColumns = childColumns;
ProcessNode(layoutInfo);
childNodesBounds.Width = Math.Max(childNodesBounds.Width,
Math.Max(childNode.BoundsRelative.Width, (childNode.Expanded && childNode.ChildNodesBounds.Width > 0 ? childNode.ChildNodesBounds.Right - childNodesBounds.X : 0)));
childNodesBounds.Height += childNode.BoundsRelative.Height + (childNode.Expanded ? childNode.ChildNodesBounds.Height + childNode.ColumnHeaderHeight : 0) + nodeVerticalSpacing;
}
return childNodesBounds;
}
private Rectangle ProcessChildNodes(NodeLayoutContextInfo layoutInfo, Node node, int nodeVerticalSpacing, NodeColumnInfo childColumns)
{
Rectangle childNodesBounds = new Rectangle(layoutInfo.Left, layoutInfo.Top, 0, 0);
bool isPreviousGroupNode = false;
foreach (Node childNode in node.Nodes)
{
if (!childNode.Visible) continue;
if (_Groupping && childNode.HasChildNodes)
{
if (layoutInfo.CurrentLineHeight > 0)
layoutInfo.Top += layoutInfo.CurrentLineHeight + this.LayoutSettings.NodeVerticalSpacing;
layoutInfo.CurrentLineHeight = 0;
layoutInfo.Left = layoutInfo.CurrentLevelLeft;
isPreviousGroupNode = true;
}
else
{
if (isPreviousGroupNode)
{
if (layoutInfo.CurrentLineHeight > 0)
layoutInfo.Top += layoutInfo.CurrentLineHeight + this.LayoutSettings.NodeVerticalSpacing;
layoutInfo.CurrentLineHeight = 0;
layoutInfo.Left = layoutInfo.CurrentLevelLeft;
isPreviousGroupNode = false;
}
}
layoutInfo.ContextNode = childNode;
layoutInfo.ChildColumns = childColumns;
ProcessNode(layoutInfo);
if (!(_Groupping && childNode.HasChildNodes))
layoutInfo.Left += childNode.BoundsRelative.Width + this.LayoutSettings.NodeHorizontalSpacing;
if (isPreviousGroupNode)
{
childNodesBounds.Width = Math.Max(childNodesBounds.Width,
Math.Max(childNode.BoundsRelative.Width, (childNode.Expanded && childNode.ChildNodesBounds.Width > 0 ? childNode.ChildNodesBounds.Right - childNodesBounds.X : 0)));
childNodesBounds.Height += childNode.BoundsRelative.Height + (childNode.Expanded ? childNode.ChildNodesBounds.Height + childNode.ColumnHeaderHeight : 0) + nodeVerticalSpacing;
}
else
{
childNodesBounds = Rectangle.Union(childNodesBounds, childNode.BoundsRelative);
}
}
return childNodesBounds;
}
