Java tutorial
/* * Copyright 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.google.gwt.gen2.demo.scrolltable.client.option.column; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.gen2.demo.scrolltable.client.ScrollTableDemo; import com.google.gwt.gen2.demo.scrolltable.client.option.AbstractOption; import com.google.gwt.gen2.demo.scrolltable.client.option.CustomForm; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget; /** * An option. */ public class CellPaddingAndSpacingOption extends AbstractOption { @Override protected String getDescription() { return "Set the padding within cells and spacing between cells"; } @Override protected Widget onInitialize() { CustomForm form = new CustomForm(); // Padding selection final TextBox paddingBox = new TextBox(); paddingBox.setText("3"); paddingBox.setWidth("50px"); form.addLabeledWidget("Cell Padding:", paddingBox); // Spacing selection final TextBox spacingBox = new TextBox(); spacingBox.setText("3"); spacingBox.setWidth("50px"); form.addLabeledWidget("Cell Spacing:", spacingBox); // Add button to set padding and spacing { Button button = new Button("Set Padding and Spacing", new ClickHandler() { public void onClick(ClickEvent event) { try { int padding = Integer.parseInt(paddingBox.getText()); int spacing = Integer.parseInt(spacingBox.getText()); ScrollTableDemo.get().getScrollTable().setCellPadding(padding); ScrollTableDemo.get().getScrollTable().setCellSpacing(spacing); } catch (NumberFormatException e) { Window.alert("Please enter valid integers for the row and column."); } catch (IndexOutOfBoundsException e) { Window.alert("The row or column index you entered is out of bounds."); } } }); form.addButton(button); } return form; } }