GitUI.CommandsDialogs.FormBrowse.openWithDifftoolToolStripMenuItem_Click C# (CSharp) Метод

        private void openWithDifftoolToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (DiffFiles.SelectedItem == null)
                return;

            var selectedItem = DiffFiles.SelectedItem;
            GitUIExtensions.DiffWithRevisionKind diffKind;

            if (sender == aLocalToolStripMenuItem)
                diffKind = GitUIExtensions.DiffWithRevisionKind.DiffALocal;
            else if (sender == bLocalToolStripMenuItem)
                diffKind = GitUIExtensions.DiffWithRevisionKind.DiffBLocal;
            else if (sender == parentOfALocalToolStripMenuItem)
                diffKind = GitUIExtensions.DiffWithRevisionKind.DiffAParentLocal;
            else if (sender == parentOfBLocalToolStripMenuItem)
                diffKind = GitUIExtensions.DiffWithRevisionKind.DiffBParentLocal;
            else
            {
                Debug.Assert(sender == aBToolStripMenuItem, "Not implemented DiffWithRevisionKind: " + sender);
                diffKind = GitUIExtensions.DiffWithRevisionKind.DiffAB;
            }

            string parentGuid = RevisionGrid.GetSelectedRevisions().Count() == 1 ? DiffFiles.SelectedItemParent : null;

            RevisionGrid.OpenWithDifftool(selectedItem.Name, selectedItem.OldName, diffKind, parentGuid);
        }