/// <summary> Remove until object count is less than count</summary>
public void RemoveUntil(int count)
{
List <GLObjectsWithLabels> toremove = new List <GLObjectsWithLabels>();
int n = 0; // index of removal
while (n < BlockList.Count && Objects > count)
{
var blocklist = BlockList[n];
foreach (var b in blocklist)
{
b.owl.Remove(b.blockindex); // in owl, remove block
if (b.owl.Emptied) // if block has gone emptied, add to remove list
{
toremove.Add(b.owl);
}
Objects -= b.count;
}
System.Diagnostics.Debug.Assert(TagsToBlocks.ContainsKey(blocklist[0].tag));
UserData.Remove(blocklist[0].tag); // remove the user data associated with the tag
TagsToBlocks.Remove(blocklist[0].tag); // remove the tag associated with the blocklist
n++;
}
if (n > 0) // if removed something
{
System.Diagnostics.Debug.WriteLine($"Blocklist {BlockList.Count} remove {n} objects {Objects}");
BlockList.RemoveRange(0, n); // and empty block list
foreach (var removeit in toremove)
{
robjects.Remove(removeit.ObjectRenderer); // remove renders
robjects.Remove(removeit.TextRenderer);
removeit.Dispose(); // then dispose
set.Remove(removeit);
}
}
}
/// <summary> Remove the oldest N blocks</summary>
public void RemoveOldest(int n)
{
List <GLObjectsWithLabels> toremove = new List <GLObjectsWithLabels>();
n = Math.Min(BlockList.Count, n); // limit
for (int i = 0; i < n; i++) // for all block list entries
{
var blocklist = BlockList[i];
foreach (var b in blocklist)
{
b.owl.Remove(b.blockindex); // in owl, remove block
if (b.owl.Emptied) // if block has gone emptied, add to remove list
{
toremove.Add(b.owl);
}
Objects -= b.count;
}
System.Diagnostics.Debug.Assert(TagsToBlocks.ContainsKey(blocklist[0].tag));
UserData.Remove(blocklist[0].tag); // remove the user data associated with the tag
TagsToBlocks.Remove(blocklist[0].tag); // remove the tag associated with the blocklist
}
//System.Diagnostics.Debug.WriteLine($"Blocklist {BlockList.Count} remove {n} objects {Objects}");
BlockList.RemoveRange(0, n); // and empty block list
foreach (var removeit in toremove)
{
robjects.Remove(removeit.ObjectRenderer); // remove renders
robjects.Remove(removeit.TextRenderer);
removeit.Dispose(); // then dispose
set.Remove(removeit);
}
}