public virtual void HandleDoubleClick(UIMouseEventArgs e)
{
_editSession.CancelSelect();
Run textRun = this.CurrentTextRun;
if (textRun != null)
{
#if DEBUG
VisualPointInfo pointInfo = _editSession.GetCurrentPointInfo();
int lineCharacterIndex = pointInfo.LineCharIndex;
int local_sel_Index = pointInfo.RunLocalSelectedIndex;
#endif
//default behaviour is select only a hit word under the caret
//so ask the text layer to find a hit word
_editSession.FindUnderlyingWord(out int startAt, out int len);
if (len > 0)
{
InvalidateGraphicOfCurrentLineArea();
_editSession.TryMoveCaretTo(startAt, true);
_editSession.StartSelect();
_editSession.TryMoveCaretTo(startAt + len);
_editSession.EndSelect();
//internalTextLayerController.TryMoveCaretTo(lineCharacterIndex - local_sel_Index, true);
//internalTextLayerController.StartSelect();
//internalTextLayerController.TryMoveCaretTo(internalTextLayerController.CharIndex + textRun.CharacterCount);
//internalTextLayerController.EndSelect();
InvalidateGraphicOfCurrentLineArea();
}
}
}
void LeftCopy(VisualPointInfo pointInfo, TextRangeCopy output)
{
if (pointInfo.LineId != _currentLineNumber)
{
throw new NotSupportedException();
}
Run tobeCutRun = pointInfo.Run;
if (tobeCutRun == null)
{
return;
}
foreach (Run run in _runs)
{
if (run != tobeCutRun)
{
output.AppendRun(run);
}
else
{
break;
}
}
CopyRun leftPart = tobeCutRun.LeftCopy(pointInfo.RunLocalSelectedIndex);
if (leftPart != null)
{
output.AppendRun(leftPart);
}
}
void LeftCopy(VisualPointInfo pointInfo, List <EditableRun> output)
{
if (pointInfo.LineId != _currentLineNumber)
{
throw new NotSupportedException();
}
EditableRun tobeCutRun = pointInfo.TextRun;
if (tobeCutRun == null)
{
return;
}
foreach (EditableRun t in _runs)
{
if (t != tobeCutRun)
{
output.Add(t.Clone());
}
else
{
break;
}
}
EditableRun preCutTextRun = tobeCutRun.LeftCopy(pointInfo.RunLocalSelectedIndex);
if (preCutTextRun != null)
{
output.Add(preCutTextRun);
}
}
public void CopySelectedTextToPlainText(StringBuilder stBuilder)
{
if (_selectionRange != null)
{
_selectionRange.SwapIfUnOrder();
if (_selectionRange.IsOnTheSameLine)
{
List <EditableRun> copyRuns = new List <EditableRun>();
_textLineWriter.CopySelectedTextRuns(_selectionRange, copyRuns);
foreach (EditableRun t in copyRuns)
{
t.CopyContentToStringBuilder(stBuilder);
}
}
else
{
VisualPointInfo startPoint = _selectionRange.StartPoint;
CurrentLineNumber = startPoint.LineId;
_textLineWriter.SetCurrentCharIndex(startPoint.LineCharIndex);
List <EditableRun> copyRuns = new List <EditableRun>();
_textLineWriter.CopySelectedTextRuns(_selectionRange, copyRuns);
foreach (EditableRun t in copyRuns)
{
t.CopyContentToStringBuilder(stBuilder);
}
}
}
}
public void AddTextSpan(EditableRun textRun)
{
if (CurrentLine.IsBlankLine)
{
CurrentLine.AddLast(textRun);
SetCurrentTextRun(textRun);
CurrentLine.TextLineReCalculateActualLineSize();
CurrentLine.RefreshInlineArrange();
SetCurrentCharIndex(CharIndex + textRun.CharacterCount);
}
else
{
if (CurrentTextRun != null)
{
VisualPointInfo newPointInfo = CurrentLine.Split(GetCurrentPointInfo());
if (newPointInfo.IsOnTheBeginOfLine)
{
CurrentLine.AddBefore((EditableRun)newPointInfo.TextRun, textRun);
}
else
{
CurrentLine.AddAfter((EditableRun)newPointInfo.TextRun, textRun);
}
CurrentLine.TextLineReCalculateActualLineSize();
CurrentLine.RefreshInlineArrange();
EnsureCurrentTextRun(CharIndex + textRun.CharacterCount);
}
else
{
throw new NotSupportedException();
}
}
}
public void FindCurrentUnderlyingWord(out int startAt, out int len)
{
Run textRun = this.CurrentTextRun;
if (textRun != null)
{
#if DEBUG
VisualPointInfo pointInfo = _editSession.GetCurrentPointInfo();
int lineCharacterIndex = pointInfo.LineCharIndex;
int local_sel_Index = pointInfo.RunLocalSelectedIndex;
#endif
//default behaviour is select only a hit word under the caret
//so ask the text layer to find a hit word
_editSession.FindUnderlyingWord(out startAt, out len);
}
else
{
startAt = len = 0;
}
}
public void CopySelectedTextToPlainText(StringBuilder stBuilder)
{
if (_selectionRange != null)
{
_selectionRange.SwapIfUnOrder();
if (_selectionRange.IsOnTheSameLine)
{
var copyRuns = new TextRangeCopy();
_lineEditor.CopySelectedTextRuns(_selectionRange, copyRuns);
copyRuns.CopyContentToStringBuilder(stBuilder);
}
else
{
VisualPointInfo startPoint = _selectionRange.StartPoint;
CurrentLineNumber = startPoint.LineId;
_lineEditor.SetCurrentCharIndex(startPoint.LineCharIndex);
var copyRuns = new TextRangeCopy();
_lineEditor.CopySelectedTextRuns(_selectionRange, copyRuns);
copyRuns.CopyContentToStringBuilder(stBuilder);
}
}
}
void RightCopy(VisualPointInfo pointInfo, TextRangeCopy output)
{
if (pointInfo.LineId != _currentLineNumber)
{
throw new NotSupportedException();
}
Run tobeCutRun = pointInfo.Run;
if (tobeCutRun == null)
{
return;
}
CopyRun rightPart = tobeCutRun.Copy(pointInfo.RunLocalSelectedIndex);
if (rightPart != null)
{
output.AppendRun(rightPart);
}
foreach (Run run in GetRunIterForward(tobeCutRun.NextRun, this.LastRun))
{
output.AppendRun(run);
}
}
public Rectangle dbugGetRectAreaOf(int beginlineNum, int beginColumnNum, int endLineNum, int endColumnNum)
{
TextFlowLayer flowLayer = _textLayer;
TextLineBox beginLine = flowLayer.GetTextLineAtPos(beginlineNum);
if (beginLine == null)
{
return(Rectangle.Empty);
}
if (beginlineNum == endLineNum)
{
VisualPointInfo beginPoint = beginLine.GetTextPointInfoFromCharIndex(beginColumnNum);
VisualPointInfo endPoint = beginLine.GetTextPointInfoFromCharIndex(endColumnNum);
return(new Rectangle(beginPoint.X, beginLine.Top, endPoint.X, beginLine.ActualLineHeight));
}
else
{
VisualPointInfo beginPoint = beginLine.GetTextPointInfoFromCharIndex(beginColumnNum);
TextLineBox endLine = flowLayer.GetTextLineAtPos(endLineNum);
VisualPointInfo endPoint = endLine.GetTextPointInfoFromCharIndex(endColumnNum);
return(new Rectangle(beginPoint.X, beginLine.Top, endPoint.X, beginLine.ActualLineHeight));
}
}
void RightCopy(VisualPointInfo pointInfo, List <EditableRun> output)
{
if (pointInfo.LineId != _currentLineNumber)
{
throw new NotSupportedException();
}
EditableRun tobeCutRun = pointInfo.TextRun;
if (tobeCutRun == null)
{
return;
}
EditableRun postCutTextRun = (EditableRun)tobeCutRun.Copy(pointInfo.RunLocalSelectedIndex);
if (postCutTextRun != null)
{
output.Add(postCutTextRun);
}
foreach (EditableRun t in GetVisualElementForward(tobeCutRun.NextTextRun, this.LastRun))
{
output.Add(t.Clone());
}
}
internal void Remove(VisualSelectionRange selectionRange)
{
EditableVisualPointInfo startPoint = selectionRange.StartPoint;
EditableVisualPointInfo endPoint = selectionRange.EndPoint;
if (startPoint.TextRun != null)
{
if (startPoint.TextRun == endPoint.TextRun)
{
EditableRun removedRun = (EditableRun)startPoint.TextRun;
EditableRun.InnerRemove(removedRun,
startPoint.RunLocalSelectedIndex,
endPoint.LineCharIndex - startPoint.LineCharIndex, false);
if (removedRun.CharacterCount == 0)
{
if (startPoint.LineId == _currentLineNumber)
{
this.Remove(removedRun);
}
else
{
EditableTextLine line = EditableFlowLayer.GetTextLine(startPoint.LineId);
line.Remove(removedRun);
}
}
}
else
{
EditableVisualPointInfo newStartPoint = null;
EditableVisualPointInfo newStopPoint = null;
EditableTextLine startLine = null;
EditableTextLine stopLine = null;
if (startPoint.LineId == _currentLineNumber)
{
startLine = this;
}
else
{
startLine = EditableFlowLayer.GetTextLine(startPoint.LineId);
}
newStartPoint = startLine.Split(startPoint);
if (endPoint.LineId == _currentLineNumber)
{
stopLine = this;
}
else
{
stopLine = EditableFlowLayer.GetTextLine(endPoint.LineId);
}
newStopPoint = stopLine.Split(endPoint);
if (startLine == stopLine)
{
if (newStartPoint.TextRun != null)
{
LinkedList <EditableRun> tobeRemoveRuns = new LinkedList <EditableRun>();
if (newStartPoint.LineCharIndex == 0)
{
foreach (EditableRun t in EditableFlowLayer.TextRunForward(
(EditableRun)newStartPoint.TextRun,
(EditableRun)newStopPoint.TextRun))
{
tobeRemoveRuns.AddLast(t);
}
}
else
{
foreach (EditableRun t in EditableFlowLayer.TextRunForward(
newStartPoint.TextRun.NextTextRun,
(EditableRun)newStopPoint.TextRun))
{
tobeRemoveRuns.AddLast(t);
}
}
startLine.LocalSuspendLineReArrange();
foreach (EditableRun t in tobeRemoveRuns)
{
startLine.Remove(t);
}
startLine.LocalResumeLineReArrange();
}
else
{
//this may be the blank line
startLine.Clear();
#if DEBUG
//TODO: review here again
//System.Diagnostics.Debug.WriteLine("EditableTextLine_adv1");
#endif
}
}
else
{
int startLineId = newStartPoint.LineId;
int stopLineId = newStopPoint.LineId;
if (newStopPoint.LineCharIndex > 0)
{
stopLine.RemoveLeft((EditableRun)newStopPoint.TextRun);
}
for (int i = stopLineId - 1; i > startLineId; i--)
{
EditableTextLine line = EditableFlowLayer.GetTextLine(i);
line.Clear();
line.JoinWithNextLine();
}
if (newStartPoint.LineCharIndex == 0)
{
startLine.RemoveRight((EditableRun)newStartPoint.TextRun);
}
else
{
EditableRun nextRun = ((EditableRun)newStartPoint.TextRun).NextTextRun;
if (nextRun != null && !nextRun.IsLineBreak)
{
startLine.RemoveRight(nextRun);
}
}
startLine.JoinWithNextLine();
}
}
}
else
{
VisualPointInfo newStartPoint = null;
VisualPointInfo newStopPoint = null;
EditableTextLine startLine = null;
EditableTextLine stopLine = null;
if (startPoint.LineId == _currentLineNumber)
{
startLine = this;
}
else
{
startLine = EditableFlowLayer.GetTextLine(startPoint.LineId);
}
newStartPoint = startLine.Split(startPoint);
if (endPoint.LineId == _currentLineNumber)
{
stopLine = this;
}
else
{
stopLine = EditableFlowLayer.GetTextLine(endPoint.LineId);
}
newStopPoint = stopLine.Split(endPoint);
if (startLine == stopLine)
{
if (newStartPoint.TextRun != null)
{
LinkedList <EditableRun> tobeRemoveRuns = new LinkedList <EditableRun>();
if (newStartPoint.LineCharIndex == -1)
{
foreach (EditableRun t in EditableFlowLayer.TextRunForward(
(EditableRun)newStartPoint.TextRun,
(EditableRun)newStopPoint.TextRun))
{
tobeRemoveRuns.AddLast(t);
}
}
else
{
foreach (EditableRun t in EditableFlowLayer.TextRunForward(
newStartPoint.TextRun.NextTextRun,
(EditableRun)newStopPoint.TextRun))
{
tobeRemoveRuns.AddLast(t);
}
}
foreach (EditableRun t in tobeRemoveRuns)
{
startLine.Remove(t);
}
}
else
{
throw new NotSupportedException();
}
}
else
{
int startLineId = newStartPoint.LineId;
int stopLineId = newStopPoint.LineId;
if (newStopPoint.LineCharIndex > -1)
{
stopLine.RemoveLeft((EditableRun)newStopPoint.TextRun);
}
for (int i = stopLineId - 1; i > startLineId; i--)
{
EditableTextLine line = EditableFlowLayer.GetTextLine(i);
line.Clear();
line.JoinWithNextLine();
}
if (newStartPoint.LineCharIndex == -1)
{
//TODO: review here again
//at this point newStartPoint.TextRun should always null
if (newStartPoint.TextRun != null)
{
startLine.RemoveRight((EditableRun)newStartPoint.TextRun);
}
}
else
{
//at this point newStartPoint.TextRun should always null
//TODO newStartPoint.TextRun == null???
if (newStartPoint.TextRun != null)
{
EditableRun nextRun = newStartPoint.TextRun.NextTextRun;
if (nextRun != null && !nextRun.IsLineBreak)
{
startLine.RemoveRight(nextRun);
}
}
}
startLine.JoinWithNextLine();
}
}
}