Nested Grid in another Grid cell Sample (Smart GWT) : Table « GWT « Java






Nested Grid in another Grid cell Sample (Smart GWT)

Nested Grid in another Grid cell Sample (Smart GWT)
   
/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT 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.  SmartGWT 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.
 */


package com.smartgwt.sample.showcase.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.fields.DataSourceBooleanField;
import com.smartgwt.client.data.fields.DataSourceDateField;
import com.smartgwt.client.data.fields.DataSourceEnumField;
import com.smartgwt.client.data.fields.DataSourceFloatField;
import com.smartgwt.client.data.fields.DataSourceIntegerField;
import com.smartgwt.client.data.fields.DataSourceLinkField;
import com.smartgwt.client.data.fields.DataSourceTextField;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.form.validator.FloatPrecisionValidator;
import com.smartgwt.client.widgets.form.validator.FloatRangeValidator;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.grid.events.RecordDoubleClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordDoubleClickHandler;
import com.smartgwt.client.widgets.layout.VLayout;

public class Showcase implements EntryPoint {
  public void onModuleLoad() {

    RootPanel.get().add(getViewPanel());
  }

  private ListGridRecord lastOpenedRecord;

  public Canvas getViewPanel() {

    VLayout layout = new VLayout(20);

    final ItemSupplyXmlDS itemSupplyXmlDS = ItemSupplyXmlDS.getInstance();

    final ListGrid categoryGrid = new ListGrid();
    categoryGrid.setWidth(600);
    categoryGrid.setHeight(400);
    categoryGrid.setDataSource(SupplyCategoryXmlDS.getInstance());
    categoryGrid.setAlternateRecordStyles(true);

    categoryGrid.addRecordDoubleClickHandler(new RecordDoubleClickHandler() {
      public void onRecordDoubleClick(RecordDoubleClickEvent event) {
        showDetailGrid(categoryGrid, itemSupplyXmlDS);
      }
    });

    categoryGrid.fetchData();
    layout.addMember(categoryGrid);

    IButton showDetail = new IButton("Show Detail Grid");
    showDetail.setWidth(140);
    showDetail.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        showDetailGrid(categoryGrid, itemSupplyXmlDS);
      }
    });

    layout.addMember(showDetail);

    IButton hideDetail = new IButton("Hide Detail Grid");
    hideDetail.setWidth(140);
    hideDetail.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        if (lastOpenedRecord != null) {
          categoryGrid.closeRecord(lastOpenedRecord);
          lastOpenedRecord = null;
        }
      }
    });

    layout.addMember(hideDetail);
    return layout;
  }

  private void showDetailGrid(ListGrid categoryGrid, DataSource itemSupplyXmlDS) {
    ListGridRecord record = categoryGrid.getSelectedRecord();
    if (record != null) {
      categoryGrid.openRecordDetailGrid(record, itemSupplyXmlDS);
      lastOpenedRecord = record;
    }
  }

}

class SupplyCategoryXmlDS extends DataSource {

  private static SupplyCategoryXmlDS instance = null;

  public static SupplyCategoryXmlDS getInstance() {
    if (instance == null) {
      instance = new SupplyCategoryXmlDS("supplyCategoryDS");
    }
    return instance;
  }

  public SupplyCategoryXmlDS(String id) {

    setID(id);
    setRecordXPath("/List/supplyCategory");

    DataSourceTextField itemNameField = new DataSourceTextField("categoryName", "Item", 128, true);
    itemNameField.setPrimaryKey(true);

    DataSourceTextField parentField = new DataSourceTextField("parentID", null);
    parentField.setHidden(true);
    parentField.setRequired(true);
    parentField.setRootValue("root");
    parentField.setForeignKey("supplyCategoryDS.categoryName");

    setFields(itemNameField, parentField);

    setDataURL("ds/test_data/supplyCategory.data.xml");

    setClientOnly(true);

  }
}

class ItemSupplyXmlDS extends DataSource {

  private static ItemSupplyXmlDS instance = null;

  public static ItemSupplyXmlDS getInstance() {
    if (instance == null) {
      instance = new ItemSupplyXmlDS("supplyItemDS");
    }
    return instance;
  }

  public ItemSupplyXmlDS(String id) {

    setID(id);
    setRecordXPath("/List/supplyItem");
    DataSourceIntegerField pkField = new DataSourceIntegerField("itemID");
    pkField.setHidden(true);
    pkField.setPrimaryKey(true);

    DataSourceTextField itemNameField = new DataSourceTextField("itemName", "Item Name", 128, true);
    DataSourceTextField skuField = new DataSourceTextField("SKU", "SKU", 10, true);

    DataSourceTextField descriptionField = new DataSourceTextField("description", "Description",
        2000);
    DataSourceTextField categoryField = new DataSourceTextField("category", "Category", 128, true);
    categoryField.setForeignKey("supplyCategoryDS.categoryName");

    DataSourceEnumField unitsField = new DataSourceEnumField("units", "Units", 5);
    unitsField.setValueMap("Roll", "Ea", "Pkt", "Set", "Tube", "Pad", "Ream", "Tin", "Bag", "Ctn",
        "Box");

    DataSourceFloatField unitCostField = new DataSourceFloatField("unitCost", "Unit Cost", 5);
    FloatRangeValidator rangeValidator = new FloatRangeValidator();
    rangeValidator.setMin(0);
    rangeValidator.setErrorMessage("Please enter a valid (positive) cost");

    FloatPrecisionValidator precisionValidator = new FloatPrecisionValidator();
    precisionValidator.setPrecision(2);
    precisionValidator.setErrorMessage("The maximum allowed precision is 2");

    unitCostField.setValidators(rangeValidator, precisionValidator);

    DataSourceBooleanField inStockField = new DataSourceBooleanField("inStock", "In Stock");

    DataSourceDateField nextShipmentField = new DataSourceDateField("nextShipment", "Next Shipment");

    setFields(pkField, itemNameField, skuField, descriptionField, categoryField, unitsField,
        unitCostField, inStockField, nextShipmentField);

    setDataURL("ds/test_data/supplyItem.data.xml");
    setClientOnly(true);
  }
}

class CountryXmlDS extends DataSource {

  private static CountryXmlDS instance = null;

  public static CountryXmlDS getInstance() {
    if (instance == null) {
      instance = new CountryXmlDS("countryDS");
    }
    return instance;
  }

  public CountryXmlDS(String id) {

    setID(id);
    setRecordXPath("/List/country");
    DataSourceIntegerField pkField = new DataSourceIntegerField("pk");
    pkField.setHidden(true);
    pkField.setPrimaryKey(true);

    DataSourceTextField countryCodeField = new DataSourceTextField("countryCode", "Code");
    countryCodeField.setRequired(true);

    DataSourceTextField countryNameField = new DataSourceTextField("countryName", "Country");
    countryNameField.setRequired(true);

    DataSourceTextField capitalField = new DataSourceTextField("capital", "Capital");
    DataSourceTextField governmentField = new DataSourceTextField("government", "Government", 500);

    DataSourceBooleanField memberG8Field = new DataSourceBooleanField("member_g8", "G8");

    DataSourceTextField continentField = new DataSourceTextField("continent", "Continent");
    continentField.setValueMap("Europe", "Asia", "North America", "Australia/Oceania",
        "South America", "Africa");

    DataSourceDateField independenceField = new DataSourceDateField("independence", "Nationhood");
    DataSourceFloatField areaField = new DataSourceFloatField("area", "Area (km²)");
    DataSourceIntegerField populationField = new DataSourceIntegerField("population", "Population");
    DataSourceFloatField gdpField = new DataSourceFloatField("gdp", "GDP ($M)");
    DataSourceLinkField articleField = new DataSourceLinkField("article", "Info");

    setFields(pkField, countryCodeField, countryNameField, capitalField, governmentField,
        memberG8Field, continentField, independenceField, areaField, populationField, gdpField,
        articleField);

    setDataURL("ds/test_data/country.data.xml");
    setClientOnly(true);
  }
}

   
    
    
  








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