public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.StartSelect();
textLayer.CurrentLineNumber = _endLineNumber;
textLayer.TryMoveCaretTo(_endCharIndex);
textLayer.EndSelect();
}
public bool CanAcceptThisChar(char c)
{
//TODO: review here, enable this feature or not
//some char can't be a start char on blank line
if (CurrentLine.IsBlankLine &&
!InternalTextLayerController.CanCaretStopOnThisChar(c))
{
return(false);
}
return(true);
}
public override void InvokeRedo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
if (_singleInsertTextRun != null)
{
textLayer.AddTextRunToCurrentLine(_singleInsertTextRun);
}
else
{
textLayer.AddTextRunsToCurrentLine(_insertingTextRuns);
}
}
public void AddCharacter(char c)
{
if (CurrentLine.IsBlankLine)
{
//TODO: review here, enable this feature or not
//some char can't be a start char on blank line
if (!InternalTextLayerController.CanCaretStopOnThisChar(c))
{
return;
}
//
//1. new
EditableRun t = new EditableTextRun(this.RootGfx,
c,
this.CurrentSpanStyle);
var owner = this.FlowLayer.OwnerRenderElement;
CurrentLine.AddLast(t);
SetCurrentTextRun(t);
}
else
{
EditableRun cRun = CurrentTextRun;
if (cRun != null)
{
if (cRun.IsInsertable)
{
cRun.InsertAfter(CurrentTextRunCharIndex, c);
}
else
{
AddTextSpan(new EditableTextRun(this.RootGfx, c, this.CurrentSpanStyle));
return;
}
}
else
{
throw new NotSupportedException();
}
}
CurrentLine.TextLineReCalculateActualLineSize();
CurrentLine.RefreshInlineArrange();
SetCurrentCharStepRight();
}
public TextEditRenderBox(
RootGraphic rootgfx,
int width, int height,
bool isMultiLine,
bool isEditable = true)
: base(rootgfx, width, height)
{
_isEditable = isEditable;
if (isEditable)
{
GlobalCaretController.RegisterCaretBlink(rootgfx);
//
_myCaret = new CaretRenderElement(rootgfx, 2, 17);
_myCaret.TransparentForAllEvents = true;
}
RenderBackground = RenderCaret = RenderSelectionRange = RenderMarkers = true;
//
MayHasViewport = true;
BackgroundColor = Color.White;// Color.Transparent;
_currentSpanStyle = new TextSpanStyle();
_currentSpanStyle.FontColor = Color.Black;//set default
_currentSpanStyle.ReqFont = rootgfx.DefaultTextEditFontInfo;
//
_textLayer = new EditableTextFlowLayer(this); //presentation
_internalTextLayerController = new InternalTextLayerController(_textLayer); //controller
_isMultiLine = isMultiLine;
if (isMultiLine)
{
_textLayer.SetUseDoubleCanvas(false, true);
}
else
{
_textLayer.SetUseDoubleCanvas(true, false);
}
NeedClipArea = true;
IsBlockElement = false;
NumOfWhitespaceForSingleTab = 4;//default?, configurable?
}
public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.AddCharToCurrentLine(_c);
}
public override void InvokeRedo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.DoDelete();
}
public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.DoEnd();
textLayer.DoDelete();
}
public DocumentCommandCollection(InternalTextLayerController textdomManager)
{
_textdom = textdomManager;
}
public override void InvokeRedo(InternalTextLayerController textLayer)
{
}
public abstract void InvokeRedo(InternalTextLayerController textLayer);
public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CancelSelect();
textLayer.AddTextRunsToCurrentLine(_deletedTextRuns);
}
