Method GetRowFromWidget

src/window.cpp:212–218

* Compute the row of a widget that a user clicked in. * @param clickpos Vertical position of the mouse click. * @param widget Widget number of the widget clicked in. * @param padding Amount of empty space between the widget edge and the top of the first row. * @param line_height Height of a single row. A negative value means using the vertical resize step of the widget. * @return

 * @note The widget does not know where a list printed at the widget ends, so below a list is not a wrong position.
 */
int Window::GetRowFromWidget(int clickpos, WidgetID widget, int padding, int line_height) const
{
	const NWidgetBase *wid = this->GetWidget<NWidgetBase>(widget);
	if (line_height < 0) line_height = wid->resize_y;
	if (clickpos < wid->pos_y + padding) return INT_MAX;
	return (clickpos - wid->pos_y - padding) / line_height;
}

/**
 * Disable the highlighted status of all widgets.