/// <summary>
/// Prints cells in the state view.
/// </summary>
/// <param name="origin">The origin from where to start printing.</param>
public virtual void PrintCells(Point origin)
{
Debug.Assert(RegionHelper.IsValid(ActualCellSize));
Debug.Assert(RootCellView != null);
RootCellView.Print(origin);
}
/// <summary>
/// Draws cells in this block state view.
/// </summary>
public virtual void DrawCells()
{
Debug.Assert(RegionHelper.IsValid(ActualCellSize));
Debug.Assert(RootCellView != null);
RootCellView.Draw();
}
/// <summary>
/// Enumerate all visible cell views. Enumeration is interrupted if <paramref name="handler"/> returns true.
/// </summary>
/// <param name="handler">A handler to execute for each cell view.</param>
/// <param name="cellView">The cell view for which <paramref name="handler"/> returned true. Null if none.</param>
/// <param name="reversed">If true, search in reverse order.</param>
/// <returns>The last value returned by <paramref name="handler"/>.</returns>
public virtual bool EnumerateVisibleCellViews(Func <IFrameVisibleCellView, bool> handler, out IFrameVisibleCellView cellView, bool reversed)
{
Debug.Assert(handler != null);
Debug.Assert(RootCellView != null);
return(RootCellView.EnumerateVisibleCellViews(handler, out cellView, reversed));
}
/// <summary>
/// Enumerate all visible cell views. Enumeration is interrupted if <paramref name="handler"/> returns true.
/// </summary>
/// <param name="handler">A handler to execute for each cell view.</param>
/// <param name="cellView">The cell view for which <paramref name="handler"/> returned true. Null if none.</param>
/// <param name="reversed">If true, search in reverse order.</param>
/// <returns>The last value returned by <paramref name="handler"/>.</returns>
public virtual bool EnumerateVisibleCellViews(System.Func <IFrameVisibleCellView, bool> handler, out IFrameVisibleCellView cellView, bool reversed)
{
Contract.RequireNotNull(handler, out System.Func <IFrameVisibleCellView, bool> Handler);
Debug.Assert(RootCellView != null);
return(RootCellView.EnumerateVisibleCellViews(Handler, out cellView, reversed));
}
/// <summary>
/// Updates the actual size of cells in this state view.
/// </summary>
public virtual void UpdateActualCellsSize()
{
Debug.Assert(RootCellView != null);
RootCellView.UpdateActualSize();
Debug.Assert(RegionHelper.IsValid(RootCellView.ActualCellSize));
ActualCellSize = RootCellView.ActualCellSize;
}
/// <summary>
/// Arranges cells in this state view.
/// </summary>
/// <param name="origin">The cell location.</param>
public virtual void ArrangeCells(Point origin)
{
Debug.Assert(RootCellView != null);
RootCellView.Arrange(origin);
CellOrigin = RootCellView.CellOrigin;
Debug.Assert(RegionHelper.IsValid(CellOrigin));
}
/// <summary>
/// Clears the cell view tree for this view.
/// </summary>
public virtual void ClearRootCellView()
{
if (RootCellView != null)
RootCellView.ClearCellTree();
RootCellView = null;
_CellViewTable = null;
CellViewTable = null;
}
/// <summary>
/// Measure all cells in this state view.
/// </summary>
/// <param name="collectionWithSeparator">A collection that can draw separators around the cell.</param>
/// <param name="referenceContainer">The cell view in <paramref name="collectionWithSeparator"/> that contains this cell.</param>
/// <param name="separatorLength">The length of the separator in <paramref name="collectionWithSeparator"/>.</param>
public void MeasureCells(ILayoutCellViewCollection collectionWithSeparator, ILayoutCellView referenceContainer, Measure separatorLength)
{
Debug.Assert(RootCellView != null);
RootCellView.Measure(collectionWithSeparator, referenceContainer, separatorLength);
CellSize = RootCellView.CellSize;
ActualCellSize = RegionHelper.InvalidSize;
Debug.Assert(RegionHelper.IsValid(CellSize));
}
/// <summary>
/// Clears the cell view tree for this view.
/// </summary>
/// <param name="stateView">The state view for which to delete cells.</param>
public virtual void ClearRootCellView(IFrameNodeStateView stateView)
{
if (RootCellView != null)
{
RootCellView.ClearCellTree();
}
RootCellView = null;
EmbeddingCellView = null;
}
/// <summary>
/// Checks if the tree of cell views under this state is valid.
/// </summary>
public virtual bool IsCellViewTreeValid()
{
bool IsValid = true;
IsValid &= RootCellView != null;
if (IsValid && !(RootCellView is IFrameEmptyCellView))
{
IFrameAssignableCellViewDictionary <string> ActualCellViewTable = CreateCellViewTable();
IsValid &= RootCellView.IsCellViewTreeValid(CellViewTable, ActualCellViewTable);
IsValid &= AllCellViewsProperlyAssigned(CellViewTable, ActualCellViewTable);
}
return(IsValid);
}
/// <summary>
/// Checks if the tree of cell views under this state is valid.
/// </summary>
public virtual bool IsCellViewTreeValid()
{
bool IsValid = true;
IsValid &= RootCellView != null;
if (IsValid && !(RootCellView is IFrameEmptyCellView))
{
IFrameAssignableCellViewDictionary <string> ActualCellViewTable = CreateCellViewTable();
IsValid &= RootCellView.IsCellViewTreeValid(CellViewTable, ActualCellViewTable);
Debug.Assert(ActualCellViewTable.Count == 0);
}
return(IsValid);
}
/// <summary>
/// Checks if the tree of cell views under this state is valid.
/// </summary>
public virtual bool IsCellViewTreeValid()
{
bool IsValid = true;
IsValid &= RootCellView != null;
if (IsValid)
{
IFrameAssignableCellViewDictionary <string> EmptyCellViewTable = CreateCellViewTable();
IFrameAssignableCellViewReadOnlyDictionary <string> ExpectedCellViewTable = EmptyCellViewTable.ToReadOnly();
IFrameAssignableCellViewDictionary <string> ActualCellViewTable = CreateCellViewTable();
IsValid &= RootCellView.IsCellViewTreeValid(ExpectedCellViewTable, ActualCellViewTable);
IsValid &= ActualCellViewTable.Count == 0;
}
return(IsValid);
}
/// <summary>
/// Update line numbers in the root cell view.
/// </summary>
/// <param name="lineNumber">The current line number, updated upon return.</param>
/// <param name="maxLineNumber">The maximum line number observed, updated upon return.</param>
/// <param name="columnNumber">The current column number, updated upon return.</param>
/// <param name="maxColumnNumber">The maximum column number observed, updated upon return.</param>
public virtual void UpdateLineNumbers(ref int lineNumber, ref int maxLineNumber, ref int columnNumber, ref int maxColumnNumber)
{
Debug.Assert(RootCellView != null);
RootCellView.UpdateLineNumbers(ref lineNumber, ref maxLineNumber, ref columnNumber, ref maxColumnNumber);
}
/// <summary>
/// Updates the focus chain with cells in the tree.
/// </summary>
/// <param name="focusChain">The list of focusable cell views found in the tree.</param>
/// <param name="focusedNode">The currently focused node.</param>
/// <param name="focusedFrame">The currently focused frame in the template associated to <paramref name="focusedNode"/>.</param>
/// <param name="matchingFocus">The focus in <paramref name="focusChain"/> that match <paramref name="focusedNode"/> and <paramref name="focusedFrame"/> upon return.</param>
public virtual void UpdateFocusChain(FocusFocusList focusChain, Node focusedNode, IFocusFrame focusedFrame, ref IFocusFocus matchingFocus)
{
Debug.Assert(RootCellView != null);
RootCellView.UpdateFocusChain(focusChain, focusedNode, focusedFrame, ref matchingFocus);
}
