public ITextSnapshotLine GetLineToSwap(IWpfTextView view, SelectionHelper selectionHelper)
{
var startPosition = selectionHelper.GetLineStartPoint();
var startLineNumber = view.TextSnapshot.GetLineNumberFromPosition(startPosition.Position);
return view.TextSnapshot.GetLineFromLineNumber(startLineNumber - 1);
}
public ITextSnapshotLine GetLineToSwap(IWpfTextView view, SelectionHelper selectionHelper)
{
var endPosition = selectionHelper.GetLineEndPoint();
var endLineNumber = view.TextSnapshot.GetLineNumberFromPosition(endPosition.Position);
return view.TextSnapshot.GetLineFromLineNumber(endLineNumber + 1);
}
public void MoveLine(IWpfTextView view)
{
try
{
var selectionHelper = new SelectionHelper(view);
selectionHelper.TakeSelectionSnapshot();
var lineToSwap = this.lineMover.GetLineToSwap(view, selectionHelper);
var insertPosition = this.lineMover.GetInsertPosition(selectionHelper);
var offSet = this.lineMover.PerformMove(view, lineToSwap, insertPosition);
selectionHelper.ApplySelection(offSet);
view.Caret.EnsureVisible();
}
catch
{
// Not critical. Swallow the exception.
}
}
public SnapshotPoint GetInsertPosition(SelectionHelper selectionHelper)
{
return selectionHelper.GetLineEndIncludingLineBreak();
}
public SnapshotPoint GetInsertPosition(SelectionHelper selectionHelper)
{
return selectionHelper.GetLineStartPoint();
}