internal virtual ChartLayoutFlags GetLayoutFlags(ChartLayoutContext context)
{
// check whether last layout context is valid
if (this.lastLayoutContext.AvailableSize == InfinitySize)
{
return(ChartLayoutFlags.Size);
}
ChartLayoutFlags flags = ChartLayoutFlags.None;
if (this.lastLayoutContext.AvailableSize != context.AvailableSize)
{
flags |= ChartLayoutFlags.Size;
}
if (this.lastLayoutContext.Scale != context.Scale)
{
flags |= ChartLayoutFlags.Zoom;
}
if (this.lastLayoutContext.PlotOrigin != context.PlotOrigin)
{
flags |= ChartLayoutFlags.Pan;
}
return(flags);
}
public bool IsEmpty; // determines whether the EmptyContent of the chart is currently displayed
public ChartLayoutContext(Size availableSize, Size scale, Point plotOrigin, RadRect clip)
{
this.AvailableSize = availableSize;
this.Scale = scale;
this.PlotOrigin = plotOrigin;
this.ClipRect = clip;
this.Flags = ChartLayoutFlags.None;
this.IsEmpty = false;
}
