public virtual Subband nextSubband()
{
Subband sb;
if (isNode)
{
throw new System.ArgumentException();
}
switch (orientation)
{
case WT_ORIENT_LL:
sb = Parent;
if (sb == null || sb.resLvl != resLvl)
{
// Already at top-level or last subband in res. level
return null;
}
else
{
return sb.HL;
}
//goto case WT_ORIENT_HL;
case WT_ORIENT_HL:
return Parent.LH;
case WT_ORIENT_LH:
return Parent.HH;
case WT_ORIENT_HH:
// This is the complicated one
sb = this;
while (sb.orientation == WT_ORIENT_HH)
{
sb = sb.Parent;
}
switch (sb.orientation)
{
case WT_ORIENT_LL:
sb = sb.Parent;
if (sb == null || sb.resLvl != resLvl)
{
// Already at top-level or last subband in res. level
return null;
}
else
{
sb = sb.HL;
}
break;
case WT_ORIENT_HL:
sb = sb.Parent.LH;
break;
case WT_ORIENT_LH:
sb = sb.Parent.HH;
break;
default:
throw new System.InvalidOperationException("You have found a bug in JJ2000");
}
while (sb.isNode)
{
sb = sb.LL;
}
return sb;
default:
throw new System.InvalidOperationException("You have found a bug in JJ2000");
}
}
