Java tutorial
/* * Ext GWT 2.2.4 - Ext for GWT * Copyright(c) 2007-2010, Ext JS, LLC. * licensing@extjs.com * * http://extjs.com/license */ package com.extjs.gxt.samples.client.examples.layouts; import com.extjs.gxt.ui.client.Style.LayoutRegion; import com.extjs.gxt.ui.client.Style.Scroll; import com.extjs.gxt.ui.client.event.ButtonEvent; import com.extjs.gxt.ui.client.event.SelectionListener; import com.extjs.gxt.ui.client.util.Margins; import com.extjs.gxt.ui.client.widget.ContentPanel; import com.extjs.gxt.ui.client.widget.LayoutContainer; import com.extjs.gxt.ui.client.widget.button.Button; import com.extjs.gxt.ui.client.widget.layout.BorderLayout; import com.extjs.gxt.ui.client.widget.layout.BorderLayoutData; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.ui.FlexTable; public class BorderLayoutExample extends LayoutContainer { protected void onRender(Element target, int index) { super.onRender(target, index); final BorderLayout layout = new BorderLayout(); setLayout(layout); setStyleAttribute("padding", "10px"); ContentPanel north = new ContentPanel(); ContentPanel west = new ContentPanel(); ContentPanel center = new ContentPanel(); center.setHeading("BorderLayout Example"); center.setScrollMode(Scroll.AUTOX); FlexTable table = new FlexTable(); table.getElement().getStyle().setProperty("margin", "10px"); table.setCellSpacing(8); table.setCellPadding(4); for (int i = 0; i < LayoutRegion.values().length; i++) { final LayoutRegion r = LayoutRegion.values()[i]; if (r == LayoutRegion.CENTER) { continue; } SelectionListener<ButtonEvent> sl = new SelectionListener<ButtonEvent>() { @Override public void componentSelected(ButtonEvent ce) { String txt = ce.getButton().getText(); if (txt.equals("Expand")) { layout.expand(r); } else if (txt.equals("Collapse")) { layout.collapse(r); } else if (txt.equals("Show")) { layout.show(r); } else { layout.hide(r); } } }; table.setHTML(i, 0, "<div style='font-size: 12px; width: 100px'>" + r.name() + ":</span>"); table.setWidget(i, 1, new Button("Expand", sl)); table.setWidget(i, 2, new Button("Collapse", sl)); table.setWidget(i, 3, new Button("Show", sl)); table.setWidget(i, 4, new Button("Hide", sl)); } center.add(table); ContentPanel east = new ContentPanel(); ContentPanel south = new ContentPanel(); BorderLayoutData northData = new BorderLayoutData(LayoutRegion.NORTH, 100); northData.setCollapsible(true); northData.setFloatable(true); northData.setHideCollapseTool(true); northData.setSplit(true); northData.setMargins(new Margins(0, 0, 5, 0)); BorderLayoutData westData = new BorderLayoutData(LayoutRegion.WEST, 150); westData.setSplit(true); westData.setCollapsible(true); westData.setMargins(new Margins(0, 5, 0, 0)); BorderLayoutData centerData = new BorderLayoutData(LayoutRegion.CENTER); centerData.setMargins(new Margins(0)); BorderLayoutData eastData = new BorderLayoutData(LayoutRegion.EAST, 150); eastData.setSplit(true); eastData.setCollapsible(true); eastData.setMargins(new Margins(0, 0, 0, 5)); BorderLayoutData southData = new BorderLayoutData(LayoutRegion.SOUTH, 100); southData.setSplit(true); southData.setCollapsible(true); southData.setFloatable(true); southData.setMargins(new Margins(5, 0, 0, 0)); add(north, northData); add(west, westData); add(center, centerData); add(east, eastData); add(south, southData); } }