/// <summary>
/// Merges background styles.
/// </summary>
public static IFill Merge(BackgroundStyle style1, BackgroundStyle style2, float weight,
out ITransform blendTransform, out IMapper mapper)
{
if (style1 == null && style2 == null)
{
blendTransform = null;
mapper = null;
return(null);
}
if (style1 == null && style2 != null)
{
return(Merge(style2, style1, 1.0f - weight, out blendTransform, out mapper));
}
if (style2 == null)
{
mapper = style1.Mapper;
blendTransform = style1.MappingTransform;
return(style1.Fill);
}
blendTransform = BlendTransform.BlendTransforms(style1.MappingTransform,
style2.MappingTransform, weight);
mapper = style2.Mapper;
return(BlendedFill.BlendFills(style1.Fill, style2.Fill, weight));
}
public ISubStyle Clone()
{
BackgroundStyle style = new BackgroundStyle();
style.Parent = parent;
style.fill = fill;
return(style);
}