GitUI.CommandsDialogs.FormBrowse.FillDiff C# (CSharp) Méthode

        private void FillDiff()
        {
            DiffTabPage.Text = _diffTabPageTitleBase;

            if (CommitInfoTabControl.SelectedTab != DiffTabPage)
            {
                return;
            }

            if (_selectedRevisionUpdatedTargets.HasFlag(UpdateTargets.DiffList))
                return;

            _selectedRevisionUpdatedTargets |= UpdateTargets.DiffList;

            var revisions = RevisionGrid.GetSelectedRevisions();

            DiffText.SaveCurrentScrollPos();

            DiffFiles.SetDiffs(revisions);
            if (_oldDiffItem != null && revisions.Count > 0 && revisions[0].Guid == _oldRevision)
            {
                DiffFiles.SelectedItem = _oldDiffItem;
                _oldDiffItem = null;
                _oldRevision = null;
            }

            switch (revisions.Count)
            {
                case 0:
                    DiffTabPage.Text = _diffNoSelection.Text;
                    break;

                case 1: // diff "parent" --> "selected revision"
                    var revision = revisions[0];
                    if (revision != null && revision.ParentGuids != null && revision.ParentGuids.Length != 0)
                        DiffTabPage.Text = _diffParentWithSelection.Text;
                    break;

                case 2: // diff "first clicked revision" --> "second clicked revision"
                    bool artificialRevSelected = revisions[0].IsArtificial() || revisions[1].IsArtificial();
                    if (!artificialRevSelected)
                        DiffTabPage.Text = _diffTwoSelected.Text;
                    break;

                default: // more than 2 revisions selected => no diff
                    DiffTabPage.Text = _diffNotSupported.Text;
                    break;
            }
        }