ingo@523: package de.intevation.flys.client.client.ui.chart;
ingo@523: 
ingo@523: import com.google.gwt.core.client.GWT;
ingo@526: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@523: 
ingo@523: import com.smartgwt.client.types.ListGridFieldType;
ingo@526: import com.smartgwt.client.util.SC;
ingo@523: import com.smartgwt.client.widgets.Canvas;
ingo@523: import com.smartgwt.client.widgets.grid.events.EditCompleteEvent;
ingo@523: import com.smartgwt.client.widgets.grid.events.EditCompleteHandler;
ingo@523: import com.smartgwt.client.widgets.grid.ListGrid;
ingo@523: import com.smartgwt.client.widgets.grid.ListGridField;
ingo@523: import com.smartgwt.client.widgets.grid.ListGridRecord;
ingo@523: import com.smartgwt.client.widgets.layout.VLayout;
ingo@523: 
ingo@523: import de.intevation.flys.client.shared.model.Collection;
ingo@523: import de.intevation.flys.client.shared.model.FacetRecord;
ingo@523: import de.intevation.flys.client.shared.model.OutputMode;
ingo@524: import de.intevation.flys.client.shared.model.Theme;
ingo@524: import de.intevation.flys.client.shared.model.ThemeList;
ingo@523: 
ingo@526: import de.intevation.flys.client.client.Config;
ingo@523: import de.intevation.flys.client.client.FLYSConstants;
ingo@526: import de.intevation.flys.client.client.services.CollectionAttributeService;
ingo@526: import de.intevation.flys.client.client.services.CollectionAttributeServiceAsync;
ingo@523: 
ingo@523: 
ingo@523: /**
ingo@523:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@523:  */
ingo@523: public class ChartThemePanel extends Canvas implements EditCompleteHandler {
ingo@523: 
ingo@523:     /** The interface that provides i18n messages. */
ingo@523:     private FLYSConstants MSG = GWT.create(FLYSConstants.class);
ingo@523: 
ingo@526: 
ingo@526:     /** The service that is used to modify collection attributes.*/
ingo@526:     protected CollectionAttributeServiceAsync updater =
ingo@526:         GWT.create(CollectionAttributeService.class);
ingo@526: 
ingo@526: 
ingo@523:     public static final String GRID_FIELD_ACTIVE = "active";
ingo@523:     public static final String GRID_FIELD_NAME   = "name";
ingo@523: 
ingo@523: 
ingo@523:     protected Collection collection;
ingo@523: 
ingo@523:     protected OutputMode mode;
ingo@523: 
ingo@523:     protected ListGrid list;
ingo@523: 
ingo@523: 
ingo@523: 
ingo@523:     public ChartThemePanel(Collection collection, OutputMode mode) {
ingo@523:         this.collection = collection;
ingo@523:         this.mode       = mode;
ingo@523:         this.list       = new ListGrid();
ingo@523: 
ingo@523:         initGrid();
ingo@523:         initLayout();
ingo@523: 
ingo@523:         updateGrid();
ingo@523:     }
ingo@523: 
ingo@523: 
ingo@523:     /**
ingo@523:      * Initializes the layout of this panel.
ingo@523:      */
ingo@523:     protected void initLayout() {
ingo@523:         setWidth100();
ingo@523:         setHeight100();
ingo@523: 
ingo@523:         VLayout layout = new VLayout();
ingo@523:         layout.setWidth100();
ingo@523:         layout.setHeight100();
ingo@523: 
ingo@523:         layout.addMember(list);
ingo@523: 
ingo@523:         addChild(layout);
ingo@523:     }
ingo@523: 
ingo@523: 
ingo@523:     /**
ingo@523:      * Initializes the components (columns) of the theme grid.
ingo@523:      */
ingo@523:     protected void initGrid() {
ingo@523:         list.setCanEdit(true);
ingo@523:         list.setCanSort(false);
ingo@523:         list.setShowRecordComponents(false);
ingo@523:         list.setShowRecordComponentsByCell(true);
ingo@523:         list.setShowHeader(true);
ingo@523:         list.setShowHeaderContextMenu(false);
ingo@523:         list.setWidth100();
ingo@523:         list.setHeight100();
ingo@523: 
ingo@523:         list.addEditCompleteHandler(this);
ingo@523: 
ingo@523:         ListGridField active = new ListGridField(GRID_FIELD_ACTIVE, " ", 20);
ingo@523:         active.setType(ListGridFieldType.BOOLEAN);
ingo@523: 
ingo@523:         ListGridField name = new ListGridField(
ingo@523:             GRID_FIELD_NAME, MSG.chart_themepanel_header_themes());
ingo@523:         name.setType(ListGridFieldType.TEXT);
ingo@523: 
ingo@523:         list.setFields(active, name);
ingo@523:     }
ingo@523: 
ingo@523: 
ingo@523:     /**
ingo@526:      * Replace the current collection with a new one. <b>NOTE: this operation
ingo@526:      * triggers updateGrid() which modifies the themes in the grid.</b>
ingo@526:      *
ingo@526:      * @param collection The new collection object.
ingo@526:      */
ingo@526:     protected void setCollection(Collection collection) {
ingo@526:         this.collection = collection;
ingo@526: 
ingo@526:         updateGrid();
ingo@526:     }
ingo@526: 
ingo@526: 
ingo@526:     /**
ingo@523:      * A method that removes all records from theme grid.
ingo@523:      */
ingo@523:     protected void clearGrid() {
ingo@523:         ListGridRecord[] records = list.getRecords();
ingo@523: 
ingo@523:         if (records == null || records.length == 0) {
ingo@523:             return;
ingo@523:         }
ingo@523: 
ingo@523:         for (ListGridRecord record: records) {
ingo@523:             list.removeData(record);
ingo@523:         }
ingo@523:     }
ingo@523: 
ingo@523: 
ingo@523:     /**
ingo@523:      * This method is used to clear the current theme grid and add new updated
ingo@523:      * data.
ingo@523:      */
ingo@523:     protected void updateGrid() {
ingo@526:         GWT.log("ChartThemePanel.updateGrid");
ingo@526: 
ingo@523:         clearGrid();
ingo@523: 
ingo@524:         ThemeList themeList = collection.getThemeList(mode.getName());
ingo@523: 
ingo@524:         if (themeList == null) {
ingo@524:             GWT.log("ERROR: No theme list.");
ingo@524:             return;
ingo@524:         }
ingo@524: 
ingo@524:         int count = themeList.getThemeCount();
ingo@524: 
ingo@524:         for (int i = 1; i <= count; i++) {
ingo@524:             Theme theme = themeList.getThemeAt(i);
ingo@524: 
ingo@524:             if (theme == null) {
ingo@524:                 continue;
ingo@524:             }
ingo@524: 
ingo@524:             list.addData(new FacetRecord(theme));
ingo@523:         }
ingo@523:     }
ingo@523: 
ingo@523: 
ingo@523:     /**
ingo@523:      * This method is called after a cell in the theme grid has been modified.
ingo@523:      *
ingo@523:      * @param event The event that stores information about the modified record.
ingo@523:      */
ingo@523:     public void onEditComplete(EditCompleteEvent event) {
ingo@523:         GWT.log("Edited record.");
ingo@523: 
ingo@523:         int         row = event.getRowNum();
ingo@523:         FacetRecord rec = (FacetRecord) list.getRecord(row);
ingo@523: 
ingo@526:         updateThemeList(rec.getTheme());
ingo@526:     }
ingo@526: 
ingo@526: 
ingo@526:     /**
ingo@526:      * Update the theme list of the current collection with a modified theme. If
ingo@526:      * a theme is really modified, the CollectionAttributeService is triggered
ingo@526:      * to save the changes to the artifact server.
ingo@526:      *
ingo@526:      * @param theme The modified theme.
ingo@526:      */
ingo@526:     protected void updateThemeList(Theme theme) {
ingo@526:         GWT.log("Update theme: " + theme.getFacet());
ingo@526: 
ingo@526:         ThemeList themeList = collection.getThemeList(mode.getName());
ingo@526: 
ingo@526:         String a = theme.getArtifact();
ingo@526:         String f = theme.getFacet();
ingo@526: 
ingo@526:         int num = themeList != null ? themeList.getThemeCount() : 0;
ingo@526: 
ingo@526:         boolean updateRequired = false;
ingo@526: 
ingo@526:         for (int i = 1; i <= num; i++) {
ingo@526:             Theme old = themeList.getThemeAt(i);
ingo@526: 
ingo@526:             if (f.equals(old.getFacet()) && a.equals(old.getArtifact())) {
ingo@526:                 themeList.removeTheme(old);
ingo@526:                 themeList.addTheme(theme);
ingo@526: 
ingo@526:                 updateRequired = true;
ingo@526: 
ingo@526:                 break;
ingo@526:             }
ingo@526:         }
ingo@526: 
ingo@526:         if (updateRequired) {
ingo@526:             updateCollection();
ingo@526:         }
ingo@526:     }
ingo@526: 
ingo@526: 
ingo@526:     /**
ingo@526:      * This method triggers the CollectionAttributeService. Based on the current
ingo@526:      * collectin settings, the attribute of the collection is modified or not.
ingo@526:      * But in every case, we will get a new collection object - which might be
ingo@526:      * the same as the current one.
ingo@526:      */
ingo@526:     public void updateCollection() {
ingo@526:         final Config config = Config.getInstance();
ingo@526:         final String url    = config.getServerUrl();
ingo@526:         final String loc    = config.getLocale();
ingo@526: 
ingo@526:         GWT.log("ChartThemePanel.updateCollection via RPC now");
ingo@526: 
ingo@526:         updater.update(collection, url, loc, new AsyncCallback<Collection>() {
ingo@526:             public void onFailure(Throwable caught) {
ingo@526:                 GWT.log("Could not update collection attributes.");
ingo@526:                 SC.warn(MSG.getString(caught.getMessage()));
ingo@526:             }
ingo@526: 
ingo@526: 
ingo@526:             public void onSuccess(Collection collection) {
ingo@526:                 setCollection(collection);
ingo@526:             }
ingo@526:         });
ingo@523:     }
ingo@523: }
ingo@523: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :