private protected virtual string GetFocusedStringContent(IFocusStringContentFocus textCellFocus)
{
IFocusStringContentFocusableCellView CellView = textCellFocus.CellView;
Node Node = CellView.StateView.State.Node;
string PropertyName = CellView.PropertyName;
return(NodeTreeHelper.GetString(Node, PropertyName));
}
/// <summary>
/// Changes the value of a text. The caret position is also moved for this view and other views where the caret is at the same focus and position.
/// </summary>
/// <param name="newText">The new text.</param>
/// <param name="newCaretPosition">The new caret position.</param>
/// <param name="changeCaretBeforeText">True if the caret should be changed before the text, to preserve the caret invariant.</param>
public virtual void ChangeFocusedText(string newText, int newCaretPosition, bool changeCaretBeforeText)
{
Debug.Assert(Focus is IFocusTextFocus);
bool IsHandled = false;
IFocusNodeState State = Focus.CellView.StateView.State;
IFocusIndex ParentIndex = State.ParentIndex;
int OldCaretPosition = CaretPosition;
if (Focus is IFocusStringContentFocus AsStringContentFocus)
{
IFocusStringContentFocusableCellView CellView = AsStringContentFocus.CellView;
IFocusTextValueFrame Frame = CellView.Frame as IFocusTextValueFrame;
Debug.Assert(Frame != null);
if (Frame.AutoFormat)
{
switch (AutoFormatMode)
{
case AutoFormatModes.None:
IsHandled = true;
break;
case AutoFormatModes.FirstOnly:
newText = StringHelper.FirstOnlyFormattedText(newText);
IsHandled = true;
break;
case AutoFormatModes.FirstOrAll:
newText = StringHelper.FirstOrAllFormattedText(newText);
IsHandled = true;
break;
case AutoFormatModes.AllLowercase:
newText = StringHelper.AllLowercaseFormattedText(newText);
IsHandled = true;
break;
}
}
else
{
IsHandled = true;
}
Controller.ChangeTextAndCaretPosition(ParentIndex, AsStringContentFocus.CellView.PropertyName, newText, OldCaretPosition, newCaretPosition, changeCaretBeforeText);
}
else if (Focus is IFocusCommentFocus AsCommentFocus)
{
Controller.ChangeCommentAndCaretPosition(ParentIndex, newText, OldCaretPosition, newCaretPosition, changeCaretBeforeText);
IsHandled = true;
}
Debug.Assert(IsHandled);
}
private protected virtual void SetTextFullSelection(IFocusTextFocus textFocus)
{
bool IsHandled = false;
if (textFocus is IFocusStringContentFocus AsStringContentFocus)
{
string Text = GetFocusedStringContent(AsStringContentFocus);
IFocusStringContentFocusableCellView CellView = AsStringContentFocus.CellView;
SelectStringContent(CellView.StateView, CellView.PropertyName, 0, Text.Length);
IsHandled = true;
}
else if (textFocus is IFocusCommentFocus AsCommentFocus)
{
string Text = GetFocusedCommentText(AsCommentFocus);
IFocusCommentCellView CellView = AsCommentFocus.CellView;
SelectComment(CellView.StateView, 0, Text.Length);
IsHandled = true;
}
Debug.Assert(IsHandled);
}
private protected virtual void SetTextSelection(IFocusTextFocus textFocus)
{
bool IsHandled = false;
int Start = CaretAnchorPosition >= 0 ? CaretAnchorPosition : 0;
int End = CaretPosition;
if (textFocus is IFocusStringContentFocus AsStringContentFocus)
{
IFocusStringContentFocusableCellView CellView = AsStringContentFocus.CellView;
SelectStringContent(CellView.StateView, CellView.PropertyName, Start, End);
IsHandled = true;
}
else if (textFocus is IFocusCommentFocus AsCommentFocus)
{
IFocusCommentCellView CellView = AsCommentFocus.CellView;
SelectComment(CellView.StateView, Start, End);
IsHandled = true;
}
Debug.Assert(IsHandled);
}
/// <summary>
/// Initializes a new instance of the <see cref="FocusStringContentFocus"/> class.
/// </summary>
public FocusStringContentFocus(IFocusStringContentFocusableCellView cellView)
: base(cellView)
{
}
private protected virtual bool IsNewItemInsertableAtStringContentCellView(IFocusNodeState state, IFocusStringContentFocusableCellView cellView, out IFocusCollectionInner inner, out IFocusInsertionCollectionNodeIndex index)
{
inner = null;
index = null;
bool Result = false;
if (CaretPosition == 0)
{
Result = IsListExtremumItem(state, cellView, IsFirstFocusableCellView, InsertAbove, out inner, out index);
}
else if (CaretPosition == MaxCaretPosition)
{
Result = IsListExtremumItem(state, cellView, IsLastFocusableCellView, InsertBelow, out inner, out index);
}
return(Result);
}
