private protected virtual string GetFocusedCommentText(IFocusCommentFocus commentFocus)
{
IFocusCommentCellView CellView = commentFocus.CellView;
Document Documentation = CellView.StateView.State.Node.Documentation;
return(CommentHelper.Get(Documentation));
}
/// <summary>
/// Measures a cell created with this frame.
/// </summary>
/// <param name="measureContext">The context used to measure the cell.</param>
/// <param name="cellView">The cell to measure.</param>
/// <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>
/// <param name="size">The cell size upon return, padding included.</param>
/// <param name="padding">The cell padding.</param>
public virtual void Measure(ILayoutMeasureContext measureContext, ILayoutCellView cellView, ILayoutCellViewCollection collectionWithSeparator, ILayoutCellView referenceContainer, Measure separatorLength, out Size size, out Padding padding)
{
padding = Padding.Empty;
ILayoutCommentCellView CommentCellView = cellView as ILayoutCommentCellView;
Debug.Assert(CommentCellView != null);
string Text = CommentHelper.Get(CommentCellView.Documentation);
CommentDisplayModes DisplayMode = cellView.StateView.ControllerView.CommentDisplayMode;
Debug.Assert(DisplayMode == CommentDisplayModes.OnFocus || DisplayMode == CommentDisplayModes.All);
bool IsFocused = cellView.StateView.ControllerView.Focus.CellView == cellView;
if (IsFocused && Text == null)
{
Text = string.Empty;
}
bool IsDisplayed = Text != null && ((DisplayMode == CommentDisplayModes.OnFocus && IsFocused) || DisplayMode == CommentDisplayModes.All);
if (IsDisplayed)
{
size = measureContext.MeasureText(Text, TextStyles.Comment, Controller.Measure.Floating);
}
else
{
size = Size.Empty;
}
Debug.Assert(RegionHelper.IsValid(size));
}
private void CutOrDelete(IDataObject dataObject, out bool isDeleted)
{
isDeleted = false;
string Content = CommentHelper.Get(StateView.State.Node.Documentation);
Debug.Assert(Content != null);
Debug.Assert(Start <= End);
Debug.Assert(End <= Content.Length);
if (Start < End)
{
if (dataObject != null)
{
dataObject.SetData(typeof(string), Content.Substring(Start, End - Start));
}
Content = Content.Substring(0, Start) + Content.Substring(End);
FocusController Controller = StateView.ControllerView.Controller;
int OldCaretPosition = StateView.ControllerView.CaretPosition;
int NewCaretPosition = Start;
Controller.ChangeCommentAndCaretPosition(StateView.State.ParentIndex, Content, OldCaretPosition, NewCaretPosition, true);
StateView.ControllerView.ClearSelection();
isDeleted = true;
}
}
/// <summary>
/// Create cells for the provided state view.
/// </summary>
/// <param name="context">Context used to build the cell view tree.</param>
/// <param name="parentCellView">The parent cell view.</param>
public virtual IFrameCellView BuildNodeCells(IFrameCellViewTreeContext context, IFrameCellViewCollection parentCellView)
{
IDocument Documentation = context.StateView.State.Node.Documentation;
string Text = CommentHelper.Get(Documentation);
if (IsDisplayed(context, Text))
{
IFrameVisibleCellView CellView = CreateCommentCellView(context.StateView, parentCellView, context.StateView.State.Node.Documentation);
ValidateVisibleCellView(context, CellView);
if (context.StateView.State is IFrameOptionalNodeState AsOptionalNodeState)
{
Debug.Assert(AsOptionalNodeState.ParentInner.IsAssigned);
}
return(CellView);
}
else
{
IFrameEmptyCellView CellView = CreateEmptyCellView(context.StateView, parentCellView);
ValidateEmptyCellView(context, CellView);
return(CellView);
}
}
/// <summary>
/// Force the comment attached to the node with the focus to show, if empty, and move the focus to this comment.
/// </summary>
public virtual void ForceShowComment(out bool isMoved)
{
IFocusNodeState State = Focus.CellView.StateView.State;
Document Documentation;
if (State is IFocusOptionalNodeState AsOptionalNodeState)
{
Debug.Assert(AsOptionalNodeState.ParentInner.IsAssigned);
Documentation = AsOptionalNodeState.Node.Documentation;
}
else
{
Documentation = State.Node.Documentation;
}
isMoved = false;
ulong OldFocusHash = FocusHash;
if (!(Focus is IFocusCommentFocus))
{
string Text = CommentHelper.Get(Documentation);
if (Text == null)
{
IFocusNodeStateView StateView = Focus.CellView.StateView;
ForcedCommentStateView = StateView;
Refresh(Controller.RootState);
Debug.Assert(ForcedCommentStateView == null);
for (int i = 0; i < FocusChain.Count; i++)
{
if (FocusChain[i] is IFocusCommentFocus AsCommentFocus && AsCommentFocus.CellView.StateView == StateView)
{
int OldFocusIndex = FocusChain.IndexOf(Focus);
Debug.Assert(OldFocusIndex >= 0); // The old focus must have been preserved.
int NewFocusIndex = i;
ChangeFocus(NewFocusIndex - OldFocusIndex, OldFocusIndex, NewFocusIndex, true, out bool IsRefreshed);
Debug.Assert(!IsRefreshed); // Refresh must not be done twice.
isMoved = true;
break;
}
}
Debug.Assert(isMoved);
}
}
if (isMoved)
{
ResetSelection();
}
Debug.Assert(isMoved || OldFocusHash == FocusHash);
}
/// <summary>
/// Copy the selection in the clipboard.
/// </summary>
/// <param name="dataObject">The clipboard data object that can already contain other custom formats.</param>
public override void Copy(IDataObject dataObject)
{
string Content = CommentHelper.Get(StateView.State.Node.Documentation);
Debug.Assert(Content != null);
Debug.Assert(Start <= End);
Debug.Assert(End <= Content.Length);
dataObject.SetData(typeof(string), Content.Substring(Start, End - Start));
}
private protected void DrawCommentCaret(ILayoutCommentFocus commentFocus)
{
ILayoutCommentCellView CellView = commentFocus.CellView;
string Text = CommentHelper.Get(CellView.Documentation);
if (Text == null)
{
Text = string.Empty;
}
Point CellOrigin = CellView.CellOrigin;
Padding CellPadding = CellView.CellPadding;
Point OriginWithPadding = CellOrigin.Moved(CellPadding.Left, CellPadding.Top);
DrawContext.ShowCaret(OriginWithPadding, Text, TextStyles.Comment, ActualCaretMode, CaretPosition);
}
/// <summary>
/// Draws a cell created with this frame.
/// </summary>
/// <param name="drawContext">The context used to draw the cell.</param>
/// <param name="cellView">The cell to draw.</param>
/// <param name="origin">The location where to start drawing.</param>
/// <param name="size">The drawing size, padding included.</param>
/// <param name="padding">The padding to use when drawing.</param>
public virtual void Draw(ILayoutDrawContext drawContext, ILayoutCellView cellView, Point origin, Size size, Padding padding)
{
ILayoutCommentCellView CommentCellView = cellView as ILayoutCommentCellView;
Debug.Assert(CommentCellView != null);
string Text = CommentHelper.Get(CommentCellView.Documentation);
CommentDisplayModes DisplayMode = cellView.StateView.ControllerView.CommentDisplayMode;
Debug.Assert(DisplayMode == CommentDisplayModes.OnFocus || DisplayMode == CommentDisplayModes.All);
bool IsFocused = cellView.StateView.ControllerView.Focus.CellView == cellView;
if (IsFocused && Text == null)
{
Text = string.Empty;
}
if (Text != null)
{
if ((DisplayMode == CommentDisplayModes.OnFocus && IsFocused) || DisplayMode == CommentDisplayModes.All)
{
Point OriginWithPadding = origin.Moved(padding.Left, padding.Top);
drawContext.DrawTextBackground(Text, OriginWithPadding, TextStyles.Comment);
LayoutControllerView ControllerView = cellView.StateView.ControllerView;
if (ControllerView.Selection is ILayoutCommentSelection AsCommentSelection && AsCommentSelection.StateView == cellView.StateView)
{
int Start = AsCommentSelection.Start;
int End = AsCommentSelection.End;
Debug.Assert(Start <= End);
drawContext.DrawSelectionText(Text, OriginWithPadding, TextStyles.Comment, Start, End);
}
drawContext.DrawText(Text, OriginWithPadding, TextStyles.Comment, isFocused: false); // The caret is drawn separately.
}
else if (DisplayMode == CommentDisplayModes.OnFocus && cellView.StateView.ControllerView.ShowUnfocusedComments)
{
drawContext.DrawCommentIcon(new Rect(cellView.CellOrigin, Size.Empty));
}
}
}
/// <summary>
/// Prints a cell created with this frame.
/// </summary>
/// <param name="printContext">The context used to print the cell.</param>
/// <param name="cellView">The cell to print.</param>
/// <param name="origin">The location where to start printing.</param>
/// <param name="size">The printing size, padding included.</param>
/// <param name="padding">The padding to use when printing.</param>
public virtual void Print(ILayoutPrintContext printContext, ILayoutCellView cellView, Point origin, Size size, Padding padding)
{
ILayoutCommentCellView CommentCellView = cellView as ILayoutCommentCellView;
Debug.Assert(CommentCellView != null);
string Text = CommentHelper.Get(CommentCellView.Documentation);
if (Text != null)
{
CommentDisplayModes DisplayMode = cellView.StateView.ControllerView.CommentDisplayMode;
Debug.Assert(DisplayMode == CommentDisplayModes.OnFocus || DisplayMode == CommentDisplayModes.All);
if (DisplayMode == CommentDisplayModes.All)
{
Point OriginWithPadding = origin.Moved(padding.Left, padding.Top);
printContext.PrintText(Text, OriginWithPadding, TextStyles.Comment);
}
}
}
/// <summary>
/// Create cells for the provided state view.
/// </summary>
/// <param name="context">Context used to build the cell view tree.</param>
/// <param name="parentCellView">The collection of cell views containing this view. Null for the root of the cell tree.</param>
public virtual IFrameCellView BuildBlockCells(IFrameCellViewTreeContext context, IFrameCellViewCollection parentCellView)
{
IDocument Documentation = context.BlockStateView.BlockState.ChildBlock.Documentation;
string Text = CommentHelper.Get(Documentation);
if (IsDisplayed(context, Text))
{
IFrameVisibleCellView CellView = CreateCommentCellView(context.StateView, parentCellView, Documentation);
ValidateVisibleCellView(context, CellView);
return(CellView);
}
else
{
IFrameEmptyCellView CellView = CreateEmptyCellView(context.StateView, parentCellView);
ValidateEmptyCellView(context, CellView);
return(CellView);
}
}
/// <summary>
/// Replaces the selection with the content of the clipboard.
/// </summary>
/// <param name="isChanged">True if something was replaced or added.</param>
public override void Paste(out bool isChanged)
{
isChanged = false;
if (ClipboardHelper.TryReadText(out string Text) && Text.Length > 0)
{
string Content = CommentHelper.Get(StateView.State.Node.Documentation);
Debug.Assert(Content != null);
Debug.Assert(Start <= End);
Debug.Assert(End <= Content.Length);
Content = Content.Substring(0, Start) + Text + Content.Substring(End);
FocusController Controller = StateView.ControllerView.Controller;
int OldCaretPosition = StateView.ControllerView.CaretPosition;
int NewCaretPosition = Start + Text.Length;
Controller.ChangeCommentAndCaretPosition(StateView.State.ParentIndex, Content, OldCaretPosition, NewCaretPosition, false);
StateView.ControllerView.ClearSelection();
isChanged = true;
}
}
/// <summary>
/// Prints the selection.
/// </summary>
public virtual void Print()
{
LayoutControllerView ControllerView = StateView.ControllerView;
Debug.Assert(ControllerView.PrintContext != null);
ControllerView.UpdateLayout();
Debug.Assert(RegionHelper.IsValid(StateView.ActualCellSize));
ILayoutTemplateSet TemplateSet = ControllerView.TemplateSet;
IList <FocusFrameSelectorList> SelectorStack = StateView.GetSelectorStack();
ILayoutCommentFrame Frame = (ILayoutCommentFrame)TemplateSet.GetCommentFrame(StateView.State, SelectorStack);
Debug.Assert(Frame != null);
string Text = CommentHelper.Get(StateView.State.Node.Documentation);
Debug.Assert(Text != null);
Debug.Assert(Start <= End);
Debug.Assert(End <= Text.Length);
Frame.Print(ControllerView.PrintContext, Text.Substring(Start, End - Start), Point.Origin);
}
