/* * Smart GWT (GWT for SmartClient) * Copyright 2008 and beyond, Isomorphic Software, Inc. * * Smart GWT is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License version 3 * as published by the Free Software Foundation. Smart GWT is also * available under typical commercial license terms - see * http://smartclient.com/license * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ import java.util.Date; import java.util.LinkedHashMap; import com.google.gwt.i18n.client.DateTimeFormat; import com.smartgwt.client.types.Alignment; import com.smartgwt.client.types.GroupStartOpen; import com.smartgwt.client.types.ListGridFieldType; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.grid.GroupValueFunction; import com.smartgwt.client.widgets.grid.ListGrid; import com.smartgwt.client.widgets.grid.ListGridField; import com.smartgwt.client.widgets.grid.ListGridRecord; import com.smartgwt.sample.showcase.client.data.CountryXmlDS; import com.google.gwt.core.client.EntryPoint; public class GridGroupingModesSample implements EntryPoint { public void onModuleLoad() { CountryXmlDS countryDS = CountryXmlDS.getInstance(); final ListGrid countryGrid = new ListGrid(); countryGrid.setWidth(500); countryGrid.setHeight(425); countryGrid.setAlternateRecordStyles(true); countryGrid.setCellHeight(22); countryGrid.setDataSource(countryDS); countryGrid.setGroupStartOpen(GroupStartOpen.ALL); countryGrid.setGroupByField("continent"); countryGrid.setAutoFetchData(true); ListGridField countryCodeField = new ListGridField("countryCode", "Flag", 40); countryCodeField.setAlign(Alignment.CENTER); countryCodeField.setType(ListGridFieldType.IMAGE); countryCodeField.setImageURLPrefix("flags/16/"); countryCodeField.setImageURLSuffix(".png"); ListGridField nameField = new ListGridField("countryName"); ListGridField continentField = new ListGridField("continent"); continentField.setDefaultGroupingMode("hemisphere"); LinkedHashMap<String, String> map = new LinkedHashMap<String, String>(); map.put("continent", "Continent Name"); map.put("hemisphere", "Hemisphere"); continentField.setGroupingModes(map); continentField.setGroupValueFunction(new GroupValueFunction() { public Object getGroupValue(Object value, ListGridRecord record, ListGridField field, String fieldName, ListGrid grid) { String continent = (String)value; if (field.getGroupingMode().equals("continent")) return value; else { if ((continent.equals("North America")) || (continent.equals("South America"))) { return "Western Hemisphere"; } else { return "Eastern Hemisphere"; } } } }); ListGridField independenceField = new ListGridField("independence"); LinkedHashMap<String, String> mapIndependence = new LinkedHashMap<String, String>(); mapIndependence.put("epoch", "Epoch"); mapIndependence.put("season", "Season"); final LinkedHashMap<String, String> mapSeasons = new LinkedHashMap<String, String>(); mapSeasons.put("0", "Winter"); mapSeasons.put("1", "Spring"); mapSeasons.put("2", "Summer"); mapSeasons.put("3", "Fall"); independenceField.setGroupingModes(mapIndependence); independenceField.setDefaultGroupingMode("epoch"); independenceField.setGroupValueFunction(new GroupValueFunction() { public Object getGroupValue(Object value, ListGridRecord record, ListGridField field, String fieldName, ListGrid grid) { Date date = (Date)value; DateTimeFormat dateFormatYear = DateTimeFormat.getFormat("yyyy"); DateTimeFormat dateFormatMonth = DateTimeFormat.getFormat("MM"); DateTimeFormat dateFormatDay = DateTimeFormat.getFormat("dd"); if (field.getGroupingMode().equals("season")) { if (date == null) return "Unknown"; int month = Integer.parseInt(dateFormatMonth.format(date))-1; int day = Integer.parseInt(dateFormatDay.format(date)); int shift = month % 3 == 2 && day >= 21 ? 1 : 0; double season = Math.floor(((month + shift) % 12)/3); return mapSeasons.get(String.valueOf(season)); } else { if (date == null) return "Ancient"; int year = Integer.parseInt(dateFormatYear.format(date)); if (year < 1910) return "Pre-Industrial"; else return "Post-Industrial"; } } }); ListGridField populationField = new ListGridField("population"); countryGrid.setFields(nameField, continentField, independenceField, populationField, countryCodeField); countryGrid.draw(); } }