void TryAddElementToCollection(LayoutElement element, ContentDisplayAction showingType, bool hasChildNodes)
{
if (Object.ReferenceEquals(element.Parent, ParentElement.Element))
{
ContentDisplayAction type = ParentElement.DisplayAction == ContentDisplayAction.ScrollTo ? ParentElement.DisplayAction : showingType;
Collection.Add(new TreeViewItemInfo(element, type, hasChildNodes));
}
}
void AddTreeNode(LayoutElement element, ContentDisplayAction displayActionType)
{
TreeNode item = new TreeNode();
// Store the attribute that determines whether document range selection is allowed for this node.
item.Tag = displayActionType;
Rectangle bounds = element.Bounds;
item.ToolTipText = String.Format("X = {0}\nY = {1}\nWidth = {2}\nHeight = {3}", bounds.X, bounds.Y, bounds.Width, bounds.Height);
// Update the layout element / tree node dictionary.
Dictionary.Add(element, item);
TreeNode parentItem = Dictionary[element.Parent];
if (parentItem != null)
{
// Add a new node to the tree.
int index = parentItem.Nodes.Add(item);
// Specify the node caption.
string typeName = element.Type.ToString();
switch (element.Type)
{
case LayoutType.Column:
item.Text = String.Format("{0} #{1}", typeName, index);
break;
case LayoutType.Row:
item.Text = String.Format("{0} #{1}", typeName, index + 1);
break;
case LayoutType.TableRow:
item.Text = String.Format("{0} #{1}", typeName, index);
break;
default:
item.Text = typeName;
break;
}
if (parentItem.Tag != null)
{
// As for the node that does not allow range selection in the document, all its child nodes should have the same attribute.
ContentDisplayAction parentDisplayActionType = (ContentDisplayAction)parentItem.Tag;
ContentDisplayAction actionType = parentDisplayActionType == ContentDisplayAction.ScrollTo ? parentDisplayActionType : displayActionType;
item.Tag = actionType;
}
}
}
public TreeViewItemInfo(LayoutElement element, ContentDisplayAction displayAction, bool hasChildNodes)
{
this.element = element;
this.displayAction = displayAction;
this.hasChildNodes = hasChildNodes;
}
