private void Brainf_ckEditBox_SelectionChanged(object sender, RoutedEventArgs e)
{
ScrollToSelection(out Rect rect);
// Adjust the UI of the selected line highlight and the cursor indicator.
// Both elements are translated to the right position and made visible
// if the current selection is not collapsed to a single point, otherwise
// they're both hidden. This is the same behavior of Visual Studio.
if (_SelectionLength > 0)
{
_SelectionHighlightBorder !.Opacity = 0;
_CursorIndicatorRectangle !.Visibility = Visibility.Collapsed;
}
else
{
// Line highlight
_SelectionHighlightBorder !.Opacity = 1;
((TranslateTransform)_SelectionHighlightBorder.RenderTransform).Y = rect.Top + Padding.Top;
// Cursor indicator
_CursorIndicatorRectangle !.Visibility = Visibility.Visible;
TranslateTransform cursorTransform = (TranslateTransform)_CursorIndicatorRectangle.RenderTransform;
cursorTransform.X = rect.X + Padding.Left;
cursorTransform.Y = rect.Y + Padding.Top;
}
var position = Text.CalculateCoordinates(Document.Selection.EndPosition);
var args = new CursorPositionChangedEventArgs(position.Row + 1, position.Column + 1);
// Signal the cursor movement
CursorPositionChanged?.Invoke(this, args);
}
/// <summary>
/// Raises the <see cref="CursorPositionChanged"/> event
/// </summary>
/// <param name="sender">The <see cref="Brainf_ckEditBox"/> instance in use</param>
/// <param name="args">The arguments for the cursor movement</param>
private void CodeEditBox_CursorPositionChanged(Brainf_ckEditBox sender, CursorPositionChangedEventArgs args)
{
CursorPositionChanged?.Invoke(this, args);
}
