private void updateCursorAndLayout()
{
Placeholder.Font = Placeholder.Font.With(size: CalculatedTextSize);
textUpdateScheduler.Update();
float cursorPos = 0;
if (text.Length > 0)
{
cursorPos = getPositionAt(selectionLeft);
}
float cursorPosEnd = getPositionAt(selectionEnd);
float?selectionWidth = null;
if (selectionLength > 0)
{
selectionWidth = getPositionAt(selectionRight) - cursorPos;
}
float cursorRelativePositionAxesInBox = (cursorPosEnd - textContainerPosX) / DrawWidth;
//we only want to reposition the view when the cursor reaches near the extremities.
if (cursorRelativePositionAxesInBox < 0.1 || cursorRelativePositionAxesInBox > 0.9)
{
textContainerPosX = cursorPosEnd - DrawWidth / 2 + LeftRightPadding * 2;
}
textContainerPosX = Math.Clamp(textContainerPosX, 0, Math.Max(0, TextFlow.DrawWidth - DrawWidth + LeftRightPadding * 2));
TextContainer.MoveToX(LeftRightPadding - textContainerPosX, 300, Easing.OutExpo);
if (HasFocus)
{
caret.DisplayAt(new Vector2(cursorPos, 0), selectionWidth);
}
if (textAtLastLayout != text)
{
Current.Value = text;
}
if (textAtLastLayout.Length == 0 || text.Length == 0)
{
if (text.Length == 0)
{
Placeholder.Show();
}
else
{
Placeholder.Hide();
}
}
textAtLastLayout = text;
}
