// Constructor
protected Item(XmlNode xsdNode, GroupItem parent = null, bool isFunction = false)
{
if (!isFunction)
_id = ++_count;
XsdNode = xsdNode;
IsFunction = isFunction;
Parent = parent;
IsRequired = XsdParser.IsRequired(xsdNode);
Name = XsdParser.GetName(xsdNode);
Help = XsdParser.GetHelp(xsdNode);
IsGroupItem = XsdParser.IsGroupItem(xsdNode);
IsElementItem = XsdParser.IsElementItem(xsdNode);
}
// Constructor
/// <summary> Creates a child ElementItem from the XSD file. </summary>
/// <param name="xsdNode"> The XmlNode from the XSD Functions file that represents this item. </param>
/// <param name="parent"> The parent of this item. </param>
/// <param name="isFunction"> [Optional] Note if this is a Function. </param>
public ElementItem(XmlNode xsdNode, GroupItem parent, bool isFunction = false)
: base(xsdNode, parent, isFunction)
{
// Check
Debug.Assert(XsdParser.HasAttributes(xsdNode), "XSD Node '" + Name + "' had no attributes.");
Debug.Assert(XsdParser.HasType(xsdNode), "XSD Node '" + Name + "' had no type.");
_complexType = Structure.CreateComplexType(XsdParser.GetType(xsdNode));
// Check
Debug.Assert(_complexType != null, "Alternative: Structure.FindComplexType(xsdNode) Failed!");
// Set the (default) selected type.
SelectType(_complexType);
// Create this item's control
CreateGeneralControl(_complexType);
}
// Constructor
/// <summary> Creates a child GroupItem from the XSD Functions file. </summary>
/// <param name="xsdNode"> A XmlNode from the XSD Functions file. </param>
/// <param name="parent"> The parent of this item. </param>
/// <param name="isFunction"> Note if this is a Function. </param>
public GroupItem(XmlNode xsdNode, GroupItem parent = null, bool isFunction = false)
: base(xsdNode, parent, isFunction)
{
// Can exist multiple times?
IsMultiple = XsdParser.IsMupltiple(xsdNode);
// Can the user do Right-Click actions on this element?
HasRightClickActions = XsdParser.HasRightClickActions(xsdNode);
// Create the TreeNode of TreeViewer.
Tnode = new TreeNode(Name) {Tag = this, ToolTipText = Help};
SetParent(parent);
// Children
Children = XsdParser.CreateChildren(xsdNode, this, isFunction);
// Create the Controls for this ElementItem with the gathered information
Control = new GeneralControl(Name, IsRequired, Help);
}
public void SetParent(GroupItem parent)
{
if (parent == null) return;
Parent = parent;
if(IsGroupItem)
parent.Tnode.Nodes.Add(((GroupItem)this).Tnode);
}
/* PUBLIC METHODS */
public Item DuplicateStructure()
{
Item clone = null;
// Duplicate via constructor.
if (IsGroupItem)
clone = new GroupItem(XsdNode, null, IsFunction);
else if (IsElementItem)
clone = new ElementItem(XsdNode, null, IsFunction);
return clone;
}
/// <summary>
/// Creates all the children of the given item and returns them as a list of items.
/// Includes inner children too (recursive through GroupItem constructors).
/// </summary>
/// <param name="inXsdNode"> The given item's XmlNode to create it's children. </param>
/// <param name="parent"> The parent of the given item's XmlNode. </param>
/// <param name="isFunction"> Keep track of function items. </param>
/// <returns></returns>
public static List<Item> CreateChildren(XmlNode inXsdNode, GroupItem parent, bool isFunction)
{
List<Item> list = null;
// Check.
if (!inXsdNode.HasChildNodes) return null;
list = new List<Item>(inXsdNode.ChildNodes.Count);
foreach (XmlNode x in inXsdNode.ChildNodes)
{
switch (x.LocalName)
{
case "element":
if (IsElementItem(x))
list.Add(new ElementItem(x, parent, isFunction));
else
list.Add(new GroupItem(x, parent, isFunction));
break;
case "complexType": // CHECK: Hardcoded XSD sequence.
foreach (XmlNode xc in x.ChildNodes)
{
if (xc.LocalName == "element")
if (IsElementItem(xc))
list.Add(new ElementItem(xc, parent, isFunction));
else
list.Add(new GroupItem(xc, parent, isFunction));
else if (xc.LocalName == "sequence" || xc.LocalName == "all" || xc.LocalName == "choice")
foreach (XmlNode xcc in xc.ChildNodes)
{
if (xcc.LocalName == "element")
if (IsElementItem(xcc))
list.Add(new ElementItem(xcc, parent, isFunction));
else
list.Add(new GroupItem(xcc, parent, isFunction));
}
}
break;
case "key":
var referenceListName = "";
// Check valid syntax.
Debug.Assert(x.ChildNodes != null && x.ChildNodes != null,
"XML Handling - XSD Parser - CreateChildren - Found a 'key' without child elements.");
// Get the referenced item path.
foreach (var xc in x.ChildNodes.Cast<XmlElement>().Where(xc => xc.LocalName == "selector"))
{
Debug.Assert(xc.Attributes != null && xc.Attributes["xpath"] != null,
"XML Handling - XSD Parser - CreateChildren - Found a 'key' and child 'selector' without xpath.");
referenceListName = xc.Attributes["xpath"].Value.Trim();
}
// Check valid syntax.
Debug.Assert(!string.IsNullOrEmpty(referenceListName),
"XML Handling - XSD Parser - CreateChildren - Found a 'key' without a 'selector' child.");
// Get the name of the referenced element and create a reference list.
referenceListName = referenceListName.Substring(referenceListName.LastIndexOf('/')+1);
Structure.Structure.AddReferenceList(referenceListName);
break;
case "annotation":
break;
case "keyref":
break;
default:
throw new Exception("Stopped at XSD PARSING...\n Unhandled element: " + x.LocalName);
}
}
return list;
}
// Recursive function that hides/shows the controls of the element viewer.
private void UpdateElementViewerControls(GroupItem selectedRoot, GroupItem root)
{
// Iterate this element's children and show/hide each control.
foreach (var child in root.Children.Where(child => child.Control != null && child.Control.CurrentControl != null))
{
// Recursive call on the group items that have a child with value.
if (child.IsGroupItem)
{
var item = child as GroupItem;
var groupControl = child.Control.CurrentControl as ControlGroup;
// Check.
if (item == null || groupControl == null) continue;
// Recursive function.
UpdateElementViewerControls(selectedRoot, item);
}
ShowOrHideControl(child, checkBoxTreeShowHidden.Checked, selectedRoot);
}
}
/// <summary>
/// Encapsulates the Show or Hide control logic.
/// </summary>
/// <param name="item"></param>
/// <param name="showAll"></param>
/// <param name="selectedRoot"></param>
private void ShowOrHideControl(Item item, bool showAll, GroupItem selectedRoot)
{
var show = false;
// Show the Element if it has a value or show all option is enabled.
if ((item.IsElementItem) && (selectedRoot.InnerChildren.Contains(item) ||
selectedRoot == item))
{
if (item.IsRequired || (showAll || item.Control.HasNewValue))
show = true;
}
// Show the Group if it has any children Element and that child has a value or show all option is enabled.
else if ((item.IsGroupItem) && (selectedRoot.InnerChildren.Contains(item) ||
selectedRoot == item || ((GroupItem)item).InnerChildren.Contains(selectedRoot)))
{
var groupItem = (GroupItem)item;
var groupControl = ((ControlGroup)groupItem.Control.CurrentControl);
if (groupControl.HasChildrenOfElementItem() && (groupControl.IsRequired ||
(showAll || groupControl.HasNewValue())))
show = true;
}
if (show) item.Control.CurrentControl.Show();
else item.Control.CurrentControl.Hide();
}
// Recursive function that populates the element viewer with the appropriate elements.
private void PopulateElementViewer(GroupItem root, Control parent)
{
foreach (var child in root.Children)
{
// Check for Controls.
if (child.Control == null || child.Control.CurrentControl == null) continue;
// Do ElementItem specific actions.
if (child.IsElementItem)
{
var item = child as ElementItem;
// Check.
if (item == null) continue;
// Add reference options in the reference controls (must be done after the XML is read)
if (item.Control.CurrentControl is ControlReference)
{
var options = Structure.Structure.FindReferenceListOptions(item.Name);
(item.Control.CurrentControl as ControlReference).SetOptions(options);
}
}
// Append the item's Control in the Element Viewer.
// Append the GroupItem's Control too, to allow a better view
// of the elements' position in the hierarchy in the Element Viewer.
parent.Controls.Add(child.Control.CurrentControl);
// Do GroupItem specific actions.
if (child.IsGroupItem)
{
var item = child as GroupItem;
var groupControl = child.Control.CurrentControl as ControlGroup;
// Check.
if (item == null || groupControl == null) continue;
// Recursive function.
PopulateElementViewer(item, groupControl.GetPanel());
}
// If the item is optional (not required) hide it.
ShowOrHideControl(child, checkBoxTreeShowHidden.Checked, root);
}
}
public static void SetRoot(GroupItem newRoot)
{
StructureRoot = newRoot;
foreach (var innerChild in newRoot.InnerChildren)
{
Add(innerChild);
}
}