public void Add(SurfaceBoxRenderer addMe, bool alwaysOnTop)
{
SurfaceBoxRenderer[] startList = alwaysOnTop ? this._topList : this._list;
var listPlusOne = new SurfaceBoxRenderer[startList.Length + 1];
for (int i = 0; i < startList.Length; ++i)
{
listPlusOne[i] = startList[i];
}
listPlusOne[listPlusOne.Length - 1] = addMe;
if (alwaysOnTop)
{
this._topList = listPlusOne;
}
else
{
this._list = listPlusOne;
}
Invalidate();
}
public void Remove(SurfaceBoxRenderer removeMe)
{
if (this._list.Length == 0 && this._topList.Length == 0)
{
throw new InvalidOperationException("zero items left, can't remove anything");
}
else
{
bool found = false;
if (this._list.Length > 0)
{
var listSubOne = new SurfaceBoxRenderer[this._list.Length - 1];
bool foundHere = false;
int dstIndex = 0;
for (int i = 0; i < this._list.Length; ++i)
{
if (this._list[i] == removeMe)
{
if (foundHere)
{
throw new ArgumentException("removeMe appeared multiple times in the list");
}
else
{
foundHere = true;
}
}
else
{
if (dstIndex == this._list.Length - 1)
{
// was not found
}
else
{
listSubOne[dstIndex] = this._list[i];
++dstIndex;
}
}
}
if (foundHere)
{
this._list = listSubOne;
found = true;
}
}
if (this._topList.Length > 0)
{
var topListSubOne = new SurfaceBoxRenderer[this._topList.Length - 1];
int topDstIndex = 0;
bool foundHere = false;
for (int i = 0; i < this._topList.Length; ++i)
{
if (this._topList[i] == removeMe)
{
if (found || foundHere)
{
throw new ArgumentException("removeMe appeared multiple times in the list");
}
else
{
foundHere = true;
}
}
else
{
if (topDstIndex == this._topList.Length - 1)
{
// was not found
}
else
{
topListSubOne[topDstIndex] = this._topList[i];
++topDstIndex;
}
}
}
if (foundHere)
{
this._topList = topListSubOne;
found = true;
}
}
if (!found)
{
throw new ArgumentException("removeMe was not found", "removeMe");
}
Invalidate();
}
}