public static AxisDirection applyGrowthDirectionToAxisDirection(
AxisDirection axisDirection, GrowthDirection growthDirection)
{
switch (growthDirection)
{
case GrowthDirection.forward:
return(axisDirection);
case GrowthDirection.reverse:
return(AxisUtils.flipAxisDirection(axisDirection));
}
throw new Exception("unknown growthDirection");
}
AxisDirection?_getDirection(BuildContext context)
{
switch (widget.scrollDirection)
{
case Axis.horizontal:
D.assert(WidgetsD.debugCheckHasDirectionality(context));
TextDirection textDirection = Directionality.of(context);
AxisDirection?axisDirection = AxisUtils.textDirectionToAxisDirection(textDirection);
return(widget.reverse ? AxisUtils.flipAxisDirection(axisDirection) : axisDirection);
case Axis.vertical:
return(widget.reverse ? AxisDirection.up : AxisDirection.down);
}
throw new UIWidgetsError("fail to get axis direction");
}
public static AxisDirection?applyGrowthDirectionToAxisDirection(
AxisDirection?axisDirection, GrowthDirection?growthDirection)
{
D.assert(axisDirection != null);
D.assert(growthDirection != null);
switch (growthDirection)
{
case GrowthDirection.forward:
return(axisDirection);
case GrowthDirection.reverse:
return(AxisUtils.flipAxisDirection(axisDirection));
}
throw new Exception("unknown growthDirection");
}