raimund@238: package de.intevation.flys.client.client.ui;
raimund@238: 
raimund@238: import java.util.List;
raimund@238: 
raimund@238: import com.google.gwt.core.client.GWT;
raimund@238: import com.google.gwt.user.client.rpc.AsyncCallback;
raimund@238: 
raimund@238: import com.smartgwt.client.widgets.Canvas;
raimund@238: import com.smartgwt.client.widgets.Label;
raimund@238: import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
raimund@238: import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
raimund@238: import com.smartgwt.client.widgets.form.fields.FormItem;
raimund@238: import com.smartgwt.client.widgets.layout.HLayout;
raimund@238: import com.smartgwt.client.widgets.layout.VLayout;
raimund@238: import com.smartgwt.client.widgets.grid.ListGrid;
raimund@238: import com.smartgwt.client.widgets.grid.ListGridField;
raimund@238: import com.smartgwt.client.widgets.grid.ListGridRecord;
raimund@238: import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
raimund@238: import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
raimund@238: 
raimund@238: import com.smartgwt.client.types.ListGridFieldType;
raimund@238: 
raimund@238: import de.intevation.flys.client.shared.model.Data;
raimund@238: import de.intevation.flys.client.shared.model.DataItem;
raimund@238: import de.intevation.flys.client.shared.model.DataList;
raimund@238: import de.intevation.flys.client.shared.model.DefaultData;
raimund@238: import de.intevation.flys.client.shared.model.DefaultDataItem;
raimund@238: import de.intevation.flys.client.shared.model.DistanceInfoObject;
raimund@238: import de.intevation.flys.client.shared.model.DistanceInfoRecord;
raimund@238: import de.intevation.flys.client.shared.model.ArtifactDescription;
raimund@238: 
raimund@238: import de.intevation.flys.client.client.services.DistanceInfoService;
raimund@238: import de.intevation.flys.client.client.services.DistanceInfoServiceAsync;
raimund@238: import de.intevation.flys.client.client.FLYSConstants;
raimund@238: import de.intevation.flys.client.client.FLYSImages;
raimund@238: import de.intevation.flys.client.client.Config;
raimund@238: 
raimund@238: 
raimund@238: /**
raimund@238:  * This UIProvider creates a widget to enter locations.
raimund@238:  *
raimund@238:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
raimund@238:  */
raimund@238: public class SingleLocationPanel
raimund@238: extends      AbstractUIProvider
raimund@238: {
raimund@238:     /** The message class that provides i18n strings.*/
raimund@238:     protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
raimund@238: 
raimund@238:     /** The interface that provides the image resources. */
raimund@238:     private FLYSImages IMAGES = GWT.create(FLYSImages.class);
raimund@238: 
raimund@238:     /** The DistanceInfoService used to retrieve locations about rivers.*/
raimund@238:     protected DistanceInfoServiceAsync distanceInfoService =
raimund@238:         GWT.create(DistanceInfoService.class);
raimund@238: 
raimund@238:     /** A container that will contain the location or the distance panel.*/
raimund@238:     protected HLayout container;
raimund@238: 
raimund@238:     /** The values entered in the location mode.*/
raimund@238:     protected double[] values;
raimund@238: 
raimund@238:     /** The input panel for locations */
raimund@238:     protected DoubleArrayPanel locationPanel;
raimund@238: 
raimund@238:     /** The locations table */
raimund@238:     protected ListGrid locationTable;
raimund@238: 
raimund@238:     /** The table data. */
raimund@238:     protected DistanceInfoObject[] tableData;
raimund@238: 
raimund@238:     /**
raimund@238:      * Creates a new LocationDistancePanel instance.
raimund@238:      */
raimund@238:     public SingleLocationPanel() {
raimund@238:         locationTable = new ListGrid();
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * This method creates a widget that contains a label, a panel with
raimund@238:      * checkboxes to switch the input mode between location and distance input,
raimund@238:      * and a the mode specific panel.
raimund@238:      *
raimund@238:      * @param data The data that might be inserted.
raimund@238:      *
raimund@238:      * @return a panel.
raimund@238:      */
raimund@238:     public Canvas create(DataList data) {
raimund@238:         VLayout layout = new VLayout();
raimund@238:         layout.setMembersMargin(10);
raimund@238: 
raimund@238:         initDefaults(data);
raimund@238: 
raimund@238:         Label label   = new Label(MESSAGES.location ());
raimund@238:         Canvas widget = createWidget(data);
raimund@238:         Canvas submit = getNextButton();
raimund@238: 
raimund@238:         createLocationTable();
raimund@238: 
raimund@238:         widget.setHeight(50);
raimund@238:         label.setHeight(25);
raimund@238: 
raimund@238:         layout.addMember(label);
raimund@238:         layout.addMember(widget);
raimund@238:         layout.addMember(submit);
raimund@238: 
raimund@238:         return layout;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * This method creates a table that contains the location values.
raimund@238:      */
raimund@238:     protected void createLocationTable() {
raimund@238:         locationTable.setWidth(450);
raimund@238:         locationTable.setShowRecordComponents(true);
raimund@238:         locationTable.setShowRecordComponentsByCell(true);
raimund@238:         locationTable.setHeight(300);
raimund@238: 
raimund@238:         ListGridField addLocation = new ListGridField ("", "");
raimund@238:         addLocation.setType (ListGridFieldType.ICON);
raimund@238:         addLocation.setWidth ("30");
raimund@238:         addLocation.addRecordClickHandler (new RecordClickHandler () {
raimund@238:             public void onRecordClick (RecordClickEvent e) {
raimund@238:                 ListGridRecord[] records = locationTable.getSelection();
raimund@238:                 double[] selected = new double[1];
raimund@238:                 selected[0] = records[0].getAttributeAsDouble("from");
raimund@238:                 setLocationValues(selected);
raimund@238:             }
raimund@238:         });
raimund@238:         addLocation.setCellIcon (IMAGES.markerGreen ().getURL ());
raimund@238: 
raimund@238:         ListGridField ldescr = new ListGridField("description",
raimund@238:                 MESSAGES.description());
raimund@238:         ldescr.setType(ListGridFieldType.TEXT);
raimund@238:         ldescr.setWidth("*");
raimund@238:         ListGridField lside = new ListGridField("riverside",
raimund@238:                 MESSAGES.riverside());
raimund@238:         lside.setType(ListGridFieldType.TEXT);
raimund@238:         lside.setWidth(60);
raimund@238:         ListGridField loc = new ListGridField("from", MESSAGES.location());
raimund@238:         loc.setType(ListGridFieldType.TEXT);
raimund@238:         loc.setWidth(80);
raimund@238:         locationTable.setFields(addLocation, ldescr, loc, lside);
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     public Canvas createOld(DataList dataList) {
raimund@238:         List<Data> items = dataList.getAll();
raimund@242:         Data dLocation = getData(items, "ld_locations");
raimund@242:         DataItem[] loc = dLocation.getItems();
raimund@238: 
raimund@238:         HLayout layout = new HLayout();
raimund@238:         layout.setWidth("400px");
raimund@238: 
raimund@238:         Label   label  = new Label(dataList.getLabel());
raimund@238:         label.setWidth("200px");
raimund@238: 
raimund@238:         Canvas back = getBackButton(dataList.getState());
raimund@238: 
raimund@242:         Label selected = new Label(loc[0].getLabel());
raimund@238:         selected.setWidth("130px");
raimund@238: 
raimund@238:         layout.addMember(label);
raimund@238:         layout.addMember(selected);
raimund@238:         layout.addMember(back);
raimund@238: 
raimund@238:         return layout;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * This method reads the default values defined in the DataItems of the Data
raimund@238:      * objects in <i>list</i>.
raimund@238:      *
raimund@238:      * @param list The DataList container that stores the Data objects.
raimund@238:      */
raimund@238:     protected void initDefaults(DataList list) {
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * This method greps the Data with name <i>name</i> from the list and
raimund@238:      * returns it.
raimund@238:      *
raimund@238:      * @param items A list of Data.
raimund@238:      * @param name The name of the Data that we are searching for.
raimund@238:      *
raimund@238:      * @return the Data with the name <i>name</i>.
raimund@238:      */
raimund@238:     protected Data getData(List<Data> data, String name) {
raimund@238:         for (Data d: data) {
raimund@238:             if (name.equals(d.getLabel())) {
raimund@238:                 return d;
raimund@238:             }
raimund@238:         }
raimund@238: 
raimund@238:         return null;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     protected Canvas createWidget(DataList data) {
raimund@238:         VLayout layout       = new VLayout();
raimund@238:         container            = new HLayout();
raimund@238: 
raimund@238:         // the initial view will display the location input mode
raimund@238:         locationPanel = new DoubleArrayPanel(
raimund@238:                 MESSAGES.unitLocation(),
raimund@238:                 getLocationValues(),
raimund@238:                 new BlurHandler(){public void onBlur(BlurEvent be) {}});
raimund@238:         container.addMember(locationPanel);
raimund@238: 
raimund@238:         layout.addMember(container);
raimund@238: 
raimund@238:         container.setMembersMargin(30);
raimund@238: 
raimund@238:         container.addMember(locationTable);
raimund@238:         createInputPanel();
raimund@238:         return layout;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * This method returns the selected data.
raimund@238:      *
raimund@238:      * @return the selected/inserted data.
raimund@238:      */
raimund@238:     public Data[] getData() {
raimund@242:         saveLocationValues(locationPanel);
raimund@238:         double[] values = getLocationValues();
raimund@238:         Data[] data = new Data[values.length];
raimund@238:         DataItem item = new DefaultDataItem();
raimund@238:         for (int i = 0; i < values.length; i++) {
raimund@238:             item = new DefaultDataItem(
raimund@238:                 "ld_locations",
raimund@238:                 "ld_locations",
raimund@238:                 Double.valueOf(values[i]).toString());
raimund@238:             data[i] = new DefaultData(
raimund@238:                 "ld_locations",
raimund@238:                 null,
raimund@238:                 null,
raimund@238:                 new DataItem[] {item});
raimund@238:         }
raimund@238:         return data;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * Validates and stores all values entered in the location mode.
raimund@238:      *
raimund@238:      * @param p The DoubleArrayPanel.
raimund@238:      */
raimund@238:     protected void saveLocationValues(DoubleArrayPanel p) {
raimund@238:         FormItem[] formItems = p.getFields();
raimund@238: 
raimund@238:         for (FormItem item: formItems) {
raimund@238:             if (item.getFieldName().equals(DoubleArrayPanel.FIELD_NAME)) {
raimund@238:                 saveLocationValue(p, item);
raimund@238:             }
raimund@238:         }
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     /**
raimund@238:      * Validates and stores a value entered in the location mode.
raimund@238:      *
raimund@238:      * @param p The DoubleArrayPanel.
raimund@238:      * @param item The item that needs to be validated.
raimund@238:      */
raimund@238:     protected void saveLocationValue(DoubleArrayPanel p, FormItem item) {
raimund@238:         if (p.validateForm(item)) {
raimund@238:             setLocationValues(p.getInputValues(item));
raimund@238:         }
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     protected void createInputPanel() {
raimund@238:         Config config = Config.getInstance();
raimund@238:         String url    = config.getServerUrl();
raimund@238:         String locale = config.getLocale ();
raimund@238:         String river  = "";
raimund@238: 
raimund@238:         ArtifactDescription adescr = artifact.getArtifactDescription();
raimund@238:         DataList[] data = adescr.getOldData();
raimund@238: 
raimund@238:         if (data != null && data.length > 0) {
raimund@238:             for (int i = 0; i < data.length; i++) {
raimund@238:                 DataList dl = data[i];
raimund@238:                 if (dl.getState().equals("state.winfo.river")) {
raimund@238:                     for (int j = 0; j < dl.size(); j++) {
raimund@238:                         Data d = dl.get(j);
raimund@238:                         DataItem[] di = d.getItems();
raimund@238:                         if (di != null && di.length == 1) {
raimund@238:                            river = d.getItems()[0].getStringValue();
raimund@238:                         }
raimund@238:                     }
raimund@238:                 }
raimund@238:             }
raimund@238:         }
raimund@238: 
raimund@238:         distanceInfoService.getDistanceInfo(url, locale, river,
raimund@238:             new AsyncCallback<DistanceInfoObject[]>() {
raimund@238:                 public void onFailure(Throwable caught) {
raimund@238:                     GWT.log("Could not recieve location informations.");
raimund@238:                     GWT.log(caught.getMessage());
raimund@238:                 }
raimund@238: 
raimund@238:                 public void onSuccess(DistanceInfoObject[] di) {
raimund@238:                     int num = di != null ? di.length :0;
raimund@238:                     GWT.log("Recieved " + num + " location informations.");
raimund@238: 
raimund@238:                     if (num == 0) {
raimund@238:                         return;
raimund@238:                     }
raimund@238:                     tableData = di;
raimund@238:                     updateLocationInfo(di);
raimund@238:                 }
raimund@238:             }
raimund@238:         );
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     protected void updateLocationInfo(DistanceInfoObject[] di) {
raimund@238:         int i = 0;
raimund@238:         for (DistanceInfoObject dio: di) {
raimund@242:             if (dio.getTo() == null) {
raimund@238:                 locationTable.addData(new DistanceInfoRecord(dio));
raimund@238:             }
raimund@238:         }
raimund@238:         return;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     protected double[] getLocationValues() {
raimund@238:         return values;
raimund@238:     }
raimund@238: 
raimund@238: 
raimund@238:     protected void setLocationValues(double[] values) {
raimund@238:         this.values = values;
raimund@238:         locationPanel.setValues(values);
raimund@238:     }
raimund@238: }
raimund@238: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :