VerticalDecoratedTemplateDataGridWidget.java 文件源码

/**
 * Return a ScrollHandler to ensure the Header and Sidebar are repositioned
 * according to the position of the scroll bars surrounding the GridWidget
 */
@Override
protected ScrollHandler getScrollHandler() {
    return new ScrollHandler() {

        public void onScroll( ScrollEvent event ) {
            headerWidget.setScrollPosition( scrollPanel.getHorizontalScrollPosition() );
            sidebarWidget.setScrollPosition( scrollPanel.getVerticalScrollPosition() );
        }

    };
}