/// <summary>
/// Scrolls left within content by one logical unit.
/// </summary>
public void LineLeft()
{
if (_childScrollInfo == null)
{
return;
}
_childScrollInfo.LineLeft();
}
void IScrollInfo.LineLeft()
{
if (scrollInfo != null)
{
scrollInfo.LineLeft();
}
}
void IScrollInfo.LineLeft()
{
IScrollInfo realImplementation = Content as IScrollInfo;
if (realImplementation != null)
{
realImplementation.LineLeft();
}
else
{
throw new NotImplementedException();
}
}
protected override Script.IScriptCommand executeInner(ParameterDic pm, Control sender,
RoutedEventArgs evnt, IUIInput input, IList <IUIInputProcessor> inpProcs)
{
var scp = ControlUtils.GetScrollContentPresenter(sender);
if (input != null)
{
Point posRelToScp = pm.GetValue <Point>(CurrentRelativePositionKey);
IScrollInfo isInfo = UITools.FindVisualChild <Panel>(scp) as IScrollInfo;
if (isInfo != null)
{
if (isInfo.CanHorizontallyScroll)
{
if (posRelToScp.X < 0)
{
isInfo.LineLeft();
}
else if (posRelToScp.X > (isInfo as Panel).ActualWidth)
{
isInfo.LineRight();
}
}
if (isInfo.CanVerticallyScroll)
{
if (posRelToScp.Y < 0)
{
isInfo.LineUp();
}
else if (posRelToScp.Y > (isInfo as Panel).ActualHeight) //isInfo.ViewportHeight is bugged.
{
isInfo.LineDown();
}
}
}
}
return(NextCommand);
}
