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Vaadin is a web application framework for Rich Internet Applications (RIA). Vaadin enables easy development and maintenance of fast and secure rich web applications with a stunning look and feel and a wide browser support. It features a server-side architecture with the majority of the logic running on the server. Ajax technology is used at the browser-side to ensure a rich and interactive user experience.

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/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * 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.vaadin.client.widget.grid;

import com.google.gwt.dom.client.TableCellElement;
import com.vaadin.client.widget.escalator.FlyweightCell;
import com.vaadin.client.widgets.Grid;

/**
 * A data class which contains information which identifies a cell being
 * rendered in a {@link Grid}.
 * 

* Since this class follows the Flyweight-pattern any instance of * this object is subject to change without the user knowing it and so should * not be stored anywhere outside of the method providing these instances. * * @since 7.4 * @author Vaadin Ltd */ public class RendererCellReference extends CellReference { /** * Creates a new renderer cell reference bound to a row reference. * * @param rowReference * the row reference to bind to */ public RendererCellReference(RowReference rowReference) { super(rowReference); } private FlyweightCell cell; /** * Sets the identifying information for this cell. * * @param cell * the flyweight cell to reference * @param columnIndex * the index of the column in the grid, including hidden cells * @param column * the column to reference */ public void set(FlyweightCell cell, int columnIndex, Grid.Column column) { this.cell = cell; super.set(cell.getColumn(), columnIndex, (Grid.Column) column); } /** * Returns the element of the cell. Can be either a TD element * or a TH element. * * @return the element of the cell */ @Override public TableCellElement getElement() { return cell.getElement(); } /** * Sets the colspan attribute of the element of this cell. * * @param numberOfCells * the number of columns that the cell should span */ public void setColSpan(int numberOfCells) { cell.setColSpan(numberOfCells); } /** * Gets the colspan attribute of the element of this cell. * * @return the number of columns that the cell should span */ public int getColSpan() { return cell.getColSpan(); } }