ME3Explorer.KFreonTPFTools3.RedrawTreeView C# (CSharp) Method

        public void RedrawTreeView()
        {
            //Heff: if cancellation was requested, this was most likely called by a background thread, so don't try to interact with the form.
            if (cts.IsCancellationRequested)
                return;

            if (MainTreeView.InvokeRequired)
                this.Invoke(new Action(() =>
                {
                    MainTreeView.BeginUpdate();
                    RedrawTreeView();
                    MainTreeView.EndUpdate();
                }));
            else
            {
                MainTreeView.BeginUpdate();
                List<myTreeNode> nodes = new List<myTreeNode>();
                ResetImageList();
                for (int i = 0; i < LoadedTexes.Count; i++)
                {
                    TPFTexInfo curr = LoadedTexes[i];

                    // KFreon: If analysed, add visual cues
                    string text = curr.FormatTexDetails(isAnalysed);
                    myTreeNode node = new myTreeNode(text);
                    node.TexInd = i;

                    // KFreon: Make tree dups obvious
                    if (curr.TreeDuplicates.Count != 0)
                    {
                        Font tempfont = node.NodeFont ?? MainTreeView.Font;
                        node.NodeFont = new Font(tempfont, FontStyle.Italic);
                    }

                    if (!curr.isDef)
                    {
                        // KFreon: Deal with File dups
                        if (curr.FileDuplicates.Count != 0)
                            for (int j = 0; j < curr.FileDuplicates.Count; j++)
                            {
                                TPFTexInfo trr = curr.FileDuplicates[j];
                                text = trr.FormatTexDetails(isAnalysed);
                                trr.ThumbInd = -1;
                                myTreeNode temp = new myTreeNode(text);
                                temp.TexInds.Add(i);
                                temp.TexInds.Add(j);
                                node.Nodes.Add(temp);
                                curr.FileDuplicates[j] = trr;
                            }

                        try
                        {
                            Bitmap bmp = new Bitmap(curr.Thumbnail);
                            bmp = UsefulThings.WinForms.Imaging.PadImageToSquare(bmp, 64);
                            curr.ThumbInd = MainTreeViewImageList.Images.Count;
                            MainTreeViewImageList.Images.Add(bmp);
                        }
                        catch
                        {
                            curr.ThumbInd = 2;
                        }
                    }
                    else
                        curr.ThumbInd = 1;

                    nodes.Add(node);
                    LoadedTexes[i] = curr;

                }

                MainTreeView.Nodes.Clear();
                MainTreeView.Nodes.AddRange(nodes.ToArray());
                SetTreeImages(MainTreeView);
                MainTreeView.EndUpdate();
            }
        }