com.extjs.gxt.samples.client.examples.grid.AggregationGridExample.java Source code

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Here is the source code for com.extjs.gxt.samples.client.examples.grid.AggregationGridExample.java

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/*
 * Ext GWT 2.2.4 - Ext for GWT
 * Copyright(c) 2007-2010, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://extjs.com/license
 */
package com.extjs.gxt.samples.client.examples.grid;

import java.util.ArrayList;
import java.util.List;

import com.extjs.gxt.samples.resources.client.TestData;
import com.extjs.gxt.samples.resources.client.model.Stock;
import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.grid.AggregationRenderer;
import com.extjs.gxt.ui.client.widget.grid.AggregationRowConfig;
import com.extjs.gxt.ui.client.widget.grid.ColumnConfig;
import com.extjs.gxt.ui.client.widget.grid.ColumnData;
import com.extjs.gxt.ui.client.widget.grid.ColumnModel;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GridCellRenderer;
import com.extjs.gxt.ui.client.widget.grid.HeaderGroupConfig;
import com.extjs.gxt.ui.client.widget.grid.SummaryType;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.extjs.gxt.ui.client.widget.layout.FlowLayout;
import com.extjs.gxt.ui.client.widget.table.NumberCellRenderer;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.i18n.client.NumberFormat;
import com.google.gwt.user.client.Element;

public class AggregationGridExample extends LayoutContainer {

    @Override
    protected void onRender(Element parent, int index) {
        super.onRender(parent, index);

        setLayout(new FlowLayout(15));

        final NumberFormat currency = NumberFormat.getCurrencyFormat();
        final NumberFormat number = NumberFormat.getFormat("0.00");
        final NumberCellRenderer<Grid<Stock>> numberRenderer = new NumberCellRenderer<Grid<Stock>>(currency);

        GridCellRenderer<Stock> change = new GridCellRenderer<Stock>() {
            public String render(Stock model, String property, ColumnData config, int rowIndex, int colIndex,
                    ListStore<Stock> store, Grid<Stock> grid) {
                double val = (Double) model.get(property);
                String style = val < 0 ? "red" : "green";
                return "<span style='color:" + style + "'>" + number.format(val) + "</span>";
            }
        };

        GridCellRenderer<Stock> gridNumber = new GridCellRenderer<Stock>() {
            public String render(Stock model, String property, ColumnData config, int rowIndex, int colIndex,
                    ListStore<Stock> store, Grid<Stock> grid) {
                return numberRenderer.render(null, property, model.get(property));
            }
        };

        List<ColumnConfig> configs = new ArrayList<ColumnConfig>();

        ColumnConfig column = new ColumnConfig();
        column.setId("name");
        column.setHeader("Company");
        column.setWidth(200);
        configs.add(column);

        column = new ColumnConfig();
        column.setId("symbol");
        column.setHeader("Symbol");
        column.setWidth(100);
        configs.add(column);

        column = new ColumnConfig();
        column.setId("last");
        column.setHeader("Last");
        column.setAlignment(HorizontalAlignment.RIGHT);
        column.setWidth(100);
        column.setRenderer(gridNumber);
        configs.add(column);

        column = new ColumnConfig("change", "Change", 100);
        column.setAlignment(HorizontalAlignment.RIGHT);
        column.setRenderer(change);
        configs.add(column);

        column = new ColumnConfig("date", "Last Updated", 100);
        column.setAlignment(HorizontalAlignment.RIGHT);
        column.setDateTimeFormat(DateTimeFormat.getFormat("MM/dd/yyyy"));
        configs.add(column);

        final ListStore<Stock> store = new ListStore<Stock>();
        store.add(TestData.getStocks());

        ColumnModel cm = new ColumnModel(configs);

        cm.addHeaderGroup(0, 2, new HeaderGroupConfig("Stock Performance", 1, 2));
        cm.addHeaderGroup(0, 0, new HeaderGroupConfig("Stock Information", 1, 2));

        AggregationRowConfig<Stock> averages = new AggregationRowConfig<Stock>();
        averages.setHtml("name", "Average");

        // with summary type and format
        averages.setSummaryType("last", SummaryType.AVG);
        averages.setSummaryFormat("last", NumberFormat.getCurrencyFormat());

        // with renderer
        averages.setSummaryType("change", SummaryType.AVG);
        averages.setRenderer("change", new AggregationRenderer<Stock>() {
            public Object render(Number value, int colIndex, Grid<Stock> grid, ListStore<Stock> store) {
                // you can return html here
                return number.format(value.doubleValue());
            }
        });
        cm.addAggregationRow(averages);

        averages = new AggregationRowConfig<Stock>();
        averages.setHtml("name", "Maximum");

        averages.setSummaryType("last", SummaryType.MAX);
        averages.setSummaryFormat("last", NumberFormat.getCurrencyFormat());

        averages.setSummaryType("change", SummaryType.MAX);
        averages.setRenderer("change", new AggregationRenderer<Stock>() {
            public Object render(Number value, int colIndex, Grid<Stock> grid, ListStore<Stock> store) {
                return number.format(value.doubleValue());
            }
        });
        cm.addAggregationRow(averages);

        ContentPanel cp = new ContentPanel();
        cp.setCollapsible(true);
        cp.setAnimCollapse(false);
        cp.setFrame(true);
        cp.setHeading("Aggregation Rows");
        cp.setButtonAlign(HorizontalAlignment.CENTER);
        cp.setLayout(new FitLayout());
        cp.setBounds(10, 10, 600, 350);

        Grid<Stock> grid = new Grid<Stock>(store, cm);
        grid.setBorders(false);
        grid.setAutoExpandColumn("name");
        grid.setBorders(true);
        cp.add(grid);

        add(cp);
    }

}