public override void OnMouseDown(MouseButton button, int x, int y)
{
if (ScrollThumbRect.Translated(0, TranslateY).Contains(x, y))
{
_scrolling = true;
_lastMouseY = y;
}
else
{
if (HoveredIndex > -1)
{
if (HoveredIndex == SelectedIndex)
{
SelectedIndex = -1;
}
else
{
SelectedIndex = HoveredIndex;
SelectedItem = Items[SelectedIndex];
OnSelect?.Invoke(SelectedItem);
}
}
}
}
public override void OnMouseMove(int x, int y)
{
if (_scrolling)
{
HoveredIndex = -1;
var delta_y = y - _lastMouseY;
TranslateY += delta_y;
if (TranslateY < 0)
{
TranslateY = 0;
}
if (TranslateY > _maxTranslateY)
{
TranslateY = _maxTranslateY;
}
_lastMouseY = y;
}
else
{
if (ScrollThumbRect.Translated(0, TranslateY).Contains(x, y))
{
HoveredIndex = -1;
}
else
{
HoveredIndex = (y + TranslateY) / RowHeight;
if (HoveredIndex > Items.Count - 1 || HoveredIndex < 0)
{
HoveredIndex = -1;
}
}
}
}