/// <summary>
/// Returns the specific block within this range that is
/// mapping a device's physical x/y address. Returns null
/// if this address is not mapped to this object or its
/// children.
/// </summary>
public RangeMap GetRangeFor(MappedMidiDevice device, int x, int y)
{
RangeMap result = null;
// check input
if (device == null)
{
throw new ArgumentNullException("MidiDevice");
}
// check if this result is cached
string cacheKey = GetCacheKey(device, x, y);
if (_contains.TryGetValue(cacheKey, out result))
{
return(result);
}
// compute result if not cached
try
{
// check this block
if (device.Device.ID == Device.Device.ID)
{
if (x >= X && x < X + Width)
{
if (y >= Y && y < Y + Height)
{
return(result = this);
}
}
}
// check child blocks
foreach (var child in Children)
{
result = child.GetRangeFor(device, x, y);
if (result != null)
{
return(result);
}
}
}
finally
{
// cache result
_contains[cacheKey] = result;
}
return(result);
}
/// <summary>
/// Returns the specific block within this range that is
/// mapped to a virtual address
/// </summary>
public RangeMap GetRangeForVirtual(int x, int y)
{
RangeMap result = null;
// check if this result is cached
string cacheKey = GetVirtualCacheKey(x, y);
if (_contains.TryGetValue(cacheKey, out result))
{
return(result);
}
// compute result if not cached
try
{
// check this block
if (x >= VirtualX && x < VirtualX + Width)
{
if (y >= VirtualY && y < VirtualY + Height)
{
return(result = this);
}
}
// check child blocks
foreach (var child in Children)
{
result = child.GetRangeForVirtual(x, y);
if (result != null)
{
return(result);
}
}
}
finally
{
// cache result
_contains[cacheKey] = result;
}
return(result);
}