| /* |
| * Copyright 2010 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.cell.client; |
| |
| import com.google.gwt.i18n.client.NumberFormat; |
| import com.google.gwt.safehtml.shared.SafeHtmlBuilder; |
| import com.google.gwt.text.shared.SafeHtmlRenderer; |
| import com.google.gwt.text.shared.SimpleSafeHtmlRenderer; |
| |
| /** |
| * A {@link Cell} used to render formatted numbers. |
| */ |
| public class NumberCell extends AbstractCell<Number> { |
| |
| /** |
| * The {@link NumberFormat} used to render the number. |
| */ |
| private final NumberFormat format; |
| |
| /** |
| * The {@link SafeHtmlRenderer} used to render the formatted number as HTML. |
| */ |
| private final SafeHtmlRenderer<String> renderer; |
| |
| /** |
| * Construct a new {@link NumberCell} using decimal format and a |
| * {@link SimpleSafeHtmlRenderer}. |
| */ |
| public NumberCell() { |
| this(NumberFormat.getDecimalFormat(), SimpleSafeHtmlRenderer.getInstance()); |
| } |
| |
| /** |
| * Construct a new {@link NumberCell} using the given {@link NumberFormat} and |
| * a {@link SimpleSafeHtmlRenderer}. |
| * |
| * @param format the {@link NumberFormat} used to render the number |
| */ |
| public NumberCell(NumberFormat format) { |
| this(format, SimpleSafeHtmlRenderer.getInstance()); |
| } |
| |
| /** |
| * Construct a new {@link NumberCell} using decimal format and the given |
| * {@link SafeHtmlRenderer}. |
| * |
| * @param renderer the {@link SafeHtmlRenderer} used to render the formatted |
| * number as HTML |
| */ |
| public NumberCell(SafeHtmlRenderer<String> renderer) { |
| this(NumberFormat.getDecimalFormat(), renderer); |
| } |
| |
| /** |
| * Construct a new {@link NumberCell} using the given {@link NumberFormat} and |
| * a {@link SafeHtmlRenderer}. |
| * |
| * @param format the {@link NumberFormat} used to render the number |
| * @param renderer the {@link SafeHtmlRenderer} used to render the formatted |
| * number as HTML |
| */ |
| public NumberCell(NumberFormat format, SafeHtmlRenderer<String> renderer) { |
| if (format == null) { |
| throw new IllegalArgumentException("format == null"); |
| } |
| if (renderer == null) { |
| throw new IllegalArgumentException("renderer == null"); |
| } |
| this.format = format; |
| this.renderer = renderer; |
| } |
| |
| @Override |
| public void render(Context context, Number value, SafeHtmlBuilder sb) { |
| if (value != null) { |
| sb.append(renderer.render(format.format(value))); |
| } |
| } |
| } |