showHideButton2 = new Button();
showHideButton2.setStyleName(BaseTheme.BUTTON_LINK);
showHideButton2.setIcon(resourceCache.getImage("/img/guzik_2.png"));
final VerticalLayout leftPanel =
verticalLayout(showHideButton1,new NewProcessExtendedPane(bpmSession, i18NSource, this),activityQueuesPane,new ActivityFiltersPane(this),
showHideButton2);
leftPanelTrigger = new LeftPanelVisibilityTrigger(leftPanel, true);
leftPanel.setWidth(300, Sizeable.UNITS_PIXELS);
showHideButton0.addListener(leftPanelTrigger);