model.createBrowser(roots, flat); model.createClipBoard(); model.getClipBoard().addPropertyChangeListener(controller); model.fireThumbnailLoading();   if (model.getBrowser().getImages().size() == 0) setStatus("Done", -1); else setStatus(HiViewer.PAINTING_TEXT, -1); fireStateChange();
if (!refresh) { model.createBrowser(roots, flat); model.createClipBoard(); model.getClipBoard().addPropertyChangeListener(controller); model.fireThumbnailLoading();   if (model.getBrowser().getImages().size() == 0) setStatus("Done", -1); else setStatus(HiViewer.PAINTING_TEXT, -1); fireStateChange(); } else { Browser browser = model.getBrowser(); boolean isClipBoardDisplay = model.getClipBoard().isDisplay(); if (browser == null) throw new NullPointerException("The browser cannot be NULL."); view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)); model.refreshBrowser(roots, flat); model.createClipBoard(); model.getClipBoard().addPropertyChangeListener(controller); model.fireThumbnailLoading();   if (model.getBrowser().getImages().size() == 0) setStatus("Done", -1); else setStatus(HiViewer.PAINTING_TEXT, -1); fireStateChange(); if (model.getTreeView() != null) { model.createTreeView(); view.showTreeView(true); } view.showClipBoard(isClipBoardDisplay); view.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); }
    public void setHierarchyRoots(Set roots, boolean flat)    {        if (model.getState() != LOADING_HIERARCHY)            throw new IllegalStateException(                    "This method can only be invoked in the LOADING_HIERARCHY "+                    "state.");                model.createBrowser(roots, flat);        model.createClipBoard();        model.getClipBoard().addPropertyChangeListener(controller);        model.fireThumbnailLoading();        //b/c fireThumbnailLoading() sets the state to READY if there is no        //image.        if (model.getBrowser().getImages().size() == 0) setStatus("Done", -1);        else setStatus(HiViewer.PAINTING_TEXT, -1);        fireStateChange();    }