public override bool DeletePrevious()
{
if (TextView.Selection.IsEmpty)
{
if (AdvancedCaret.InVirtualSpace)
{
AdvancedCaret.MoveToPreviousCaretPosition();
}
else
{
if (!CaretPoint.DeletePrevious())
{
return(false);
}
if (AdvancedCaret.InVirtualSpace)
{
AdvancedCaret.MoveTo(AdvancedCaret.Position.BufferPosition);
}
}
}
else
{
if (!TextView.Selection.Delete())
{
return(false);
}
}
AdvancedCaret.EnsureVisible();
return(true);
}
public override void MoveToPreviousCharacter(bool extendSelection)
{
VirtualSnapshotPoint oldCaretPoint = this.AdvancedCaret.Position.VirtualBufferPosition;
TextPoint startPoint = TextView.Selection.GetStartPoint();
bool selectionIsEmpty = TextView.Selection.IsEmpty;
if (!extendSelection)
{
TextView.AdvancedTextView.Selection.Clear();
}
if (!extendSelection && !selectionIsEmpty)
{
MoveTo(startPoint.CurrentPosition);
}
else
{
AdvancedCaret.MoveToPreviousCaretPosition();
}
AdvancedCaret.EnsureVisible();
UpdateSelection(extendSelection, oldCaretPoint);
}