public void Copy(VisualSelectionRange selectionRange, TextRangeCopy output)
{
EditableVisualPointInfo startPoint = selectionRange.StartPoint;
EditableVisualPointInfo endPoint = selectionRange.EndPoint;
if (startPoint.Run != null)
{
if (startPoint.Run == endPoint.Run)
{
CopyRun elem =
startPoint.Run.Copy(
startPoint.RunLocalSelectedIndex,
endPoint.LineCharIndex - startPoint.LineCharIndex);
if (elem != null)
{
output.AppendRun(elem);
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
if (startLine == stopLine)
{
CopyRun rightPart = startPoint.Run.Copy(startPoint.RunLocalSelectedIndex);
if (rightPart != null)
{
output.AppendRun(rightPart);
}
if (startPoint.Run.NextRun != endPoint.Run)
{
foreach (Run run in _textFlowLayer.TextRunForward(
startPoint.Run.NextRun,
endPoint.Run.PrevRun))
{
output.AppendRun(run);
}
}
CopyRun leftPart = endPoint.Run.LeftCopy(endPoint.RunLocalSelectedIndex);
if (leftPart != null)
{
output.AppendRun(leftPart);
}
}
else
{
int startLineId = startPoint.LineId;
int stopLineId = endPoint.LineId;
startLine.RightCopy(startPoint, output);
for (int i = startLineId + 1; i < stopLineId; i++)
{
//begine new line
output.AppendNewLine();
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Copy(output);
}
if (endPoint.LineCharIndex > -1)
{
output.AppendNewLine();
stopLine.LeftCopy(endPoint, output);
}
}
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
if (startLine == stopLine)
{
if (startPoint.LineCharIndex == -1)
{
foreach (Run t in _textFlowLayer.TextRunForward(
startPoint.Run,
endPoint.Run.PrevRun))
{
output.AppendRun(t);
}
CopyRun postCutTextRun = endPoint.Run.Copy(endPoint.RunLocalSelectedIndex + 1);
if (postCutTextRun != null)
{
output.AppendRun(postCutTextRun);
}
}
else
{
CopyRun rightPart = startPoint.Run.Copy(startPoint.RunLocalSelectedIndex + 1);
if (rightPart != null)
{
output.AppendRun(rightPart);
}
foreach (Run t in _textFlowLayer.TextRunForward(
startPoint.Run.NextRun,
endPoint.Run.PrevRun))
{
output.AppendRun(t.CreateCopy());
}
CopyRun leftPart = endPoint.Run.LeftCopy(startPoint.RunLocalSelectedIndex);
if (leftPart != null)
{
output.AppendRun(leftPart);
}
}
}
else
{
int startLineId = startPoint.LineId;
int stopLineId = endPoint.LineId;
startLine.RightCopy(startPoint, output);
for (int i = startLineId + 1; i < stopLineId; i++)
{
output.AppendNewLine();
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Copy(output);
}
stopLine.LeftCopy(endPoint, output);
}
}
}
// public void CopySelectedTextRuns(VisualSelectionRange selectionRange, TextRangeCopy output) => _currentLine.Copy(selectionRange, output);