Пример #1
0
        private void SelectLevel(Guid levelUid)
        {
            Level          prev      = _project.Levels.Contains(levelUid) ? _project.Levels[levelUid] : null;
            LevelPresenter prevLevel = _currentLevelRef;

            if (_currentLevel == levelUid)
            {
                return;
            }

            // Unbind previously selected layer if necessary
            if (_currentLevelRef != null)
            {
                _currentLevelRef.Deactivate();
                _commandManager.RemoveCommandSubscriber(_currentLevelRef);
            }

            _currentLevel    = Guid.Empty;
            _currentLevelRef = null;

            // Bind new layer
            if (levelUid != null && _levelContentController.ContentIsValid(levelUid))
            {
                _currentLevel    = levelUid;
                _currentLevelRef = CurrentLevel;

                _commandManager.AddCommandSubscriber(_currentLevelRef);

                if (!_project.Levels.Contains(levelUid))
                {
                    throw new InvalidOperationException("Selected a LevelPresenter with no corresponding model Level!  Selected name: " + levelUid);
                }

                ContentInfoArbitrationPresenter info = _presentation.ContentInfo as ContentInfoArbitrationPresenter;
                info.BindInfoPresenter(CurrentLevel.InfoPresenter);

                CurrentLevel.InfoPresenter.RefreshContentInfo();

                CurrentLevel.Activate();
            }
            else
            {
                ContentInfoArbitrationPresenter info = _presentation.ContentInfo as ContentInfoArbitrationPresenter;
                info.BindInfoPresenter(null);
            }

            InvalidateLevelCommands();
            CommandManager.Invalidate(CommandKey.ViewGrid);

            OnSyncCurrentLevel(new SyncLevelEventArgs(prev, prevLevel));
            OnSyncContentView(EventArgs.Empty);
        }