Java tutorial
package com.vaadin.addon.spreadsheet.action; /* * #%L * Vaadin Spreadsheet * %% * Copyright (C) 2013 - 2015 Vaadin Ltd * %% * This program is available under Commercial Vaadin Add-On License 3.0 * (CVALv3). * * See the file license.html distributed with this software for more * information about licensing. * * You should have received a copy of the CVALv3 along with this program. * If not, see <http://vaadin.com/license/cval-3>. * #L% */ import java.util.List; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.ss.util.CellRangeUtil; import com.vaadin.addon.spreadsheet.Spreadsheet; import com.vaadin.addon.spreadsheet.Spreadsheet.SelectionChangeEvent; import com.vaadin.addon.spreadsheet.SpreadsheetFilterTable; import com.vaadin.addon.spreadsheet.SpreadsheetTable; /** * Spreadsheet action for inserting a new SpreadsheetTable. * * @author Vaadin Ltd. * @since 1.0 * */ @SuppressWarnings("serial") public class InsertTableAction extends SpreadsheetAction { public InsertTableAction() { super(""); } @Override public boolean isApplicableForSelection(Spreadsheet spreadsheet, SelectionChangeEvent event) { if (!spreadsheet.getActiveSheet().getProtect() && event.getIndividualSelectedCells().size() == 0 && event.getCellRangeAddresses().size() == 1) { List<CellRangeAddress> cras = event.getCellRangeAddresses(); CellRangeAddress cra = cras.get(0); List<SpreadsheetTable> tablesForActiveSheet = spreadsheet.getTablesForActiveSheet(); // check that the table doesn't contain a table that intersects with // the current selection for (SpreadsheetTable table : tablesForActiveSheet) { if (CellRangeUtil.intersect(cra, table.getFullTableRegion()) != CellRangeUtil.NO_INTERSECTION) { return false; } } if (cra.getFirstRow() != cra.getLastRow()) { setCaption("Create Table on " + cra.formatAsString()); return true; } } return false; } @Override public boolean isApplicableForHeader(Spreadsheet spreadsheet, CellRangeAddress headerRange) { return false; } @Override public void executeActionOnSelection(Spreadsheet spreadsheet, SelectionChangeEvent event) { SpreadsheetFilterTable table = new SpreadsheetFilterTable(spreadsheet, spreadsheet.getActiveSheet(), event.getCellRangeAddresses().get(0)); spreadsheet.registerTable(table); } @Override public void executeActionOnHeader(Spreadsheet spreadsheet, CellRangeAddress headerRange) { throw new UnsupportedOperationException("Insert table action can't be executed against a header range."); } }