bjoern@4268: package de.intevation.flys.client.client.ui;
bjoern@4268: 
bjoern@4268: import com.google.gwt.core.client.GWT;
bjoern@4268: 
bjoern@4268: import com.smartgwt.client.types.Overflow;
bjoern@4268: import com.smartgwt.client.widgets.Canvas;
bjoern@4268: import com.smartgwt.client.widgets.events.ResizedEvent;
bjoern@4268: import com.smartgwt.client.widgets.events.ResizedHandler;
bjoern@4268: import com.smartgwt.client.widgets.layout.SectionStackSection;
bjoern@4268: import com.smartgwt.client.widgets.layout.VLayout;
bjoern@4268: import com.smartgwt.client.widgets.WidgetCanvas;
bjoern@4268: 
bjoern@4268: import de.intevation.flys.client.client.FLYSConstants;
bjoern@4268: import de.intevation.flys.client.client.services.RiverInfoService;
bjoern@4268: import de.intevation.flys.client.client.services.RiverInfoServiceAsync;
bjoern@4268: import de.intevation.flys.client.shared.model.DataList;
bjoern@4268: import de.intevation.flys.client.shared.model.RiverInfo;
bjoern@4268: 
bjoern@4268: /**
bjoern@4268:  * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
bjoern@4268:  */
bjoern@4268: public abstract class InfoPanel extends VLayout implements ResizedHandler {
bjoern@4268: 
bjoern@4268:     /** SectionStackSection where this InfoPanel belongs in*/
bjoern@4268:     protected SectionStackSection section;
bjoern@4268: 
bjoern@4268:     /** Name of the river */
bjoern@4268:     protected String river;
bjoern@4268: 
bjoern@4268:     /** The message class that provides i18n strings.*/
bjoern@4268:     protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
bjoern@4268: 
bjoern@4268:     protected RiverInfoServiceAsync riverInfoService = GWT.create(RiverInfoService.class);
bjoern@4268: 
bjoern@4268:     /** Panel to show the info about the river */
bjoern@4268:     protected RiverInfoPanel riverinfopanel;
bjoern@4268:     protected InfoTree tree;
bjoern@4268: 
bjoern@4268:     /** Wrapper arround the GWT Tree (InfoTree) object */
bjoern@4268:     protected Canvas treecanvas;
bjoern@4268: 
bjoern@4268:     protected final static String SECTION_ID = "InfoPanelSection";
bjoern@4268: 
bjoern@4268:     public InfoPanel(InfoTree tree) {
bjoern@4268:         SectionStackSection section = new SectionStackSection();
bjoern@4268:         section.setExpanded(false);
bjoern@4268:         section.setTitle(getSectionTitle());
bjoern@4268:         section.setName(SECTION_ID);
bjoern@4268:         section.setID(SECTION_ID);
bjoern@4268: 
bjoern@4268:         treecanvas = new WidgetCanvas(tree);
bjoern@4268: 
bjoern@4268:         setOverflow(Overflow.HIDDEN);
bjoern@4268:         setStyleName("infopanel");
bjoern@4268: 
bjoern@4268:         section.setHidden(true);
bjoern@4268:         section.setItems(this);
bjoern@4268:         this.section = section;
bjoern@4268:         this.tree = tree;
bjoern@4268: 
bjoern@4268:         addResizedHandler(this);
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Sets and loads the river data if river is not the current set river
bjoern@4268:      */
bjoern@4268:     public void setRiver(String river) {
bjoern@4268:         if (!river.equals(this.river)) {
bjoern@4268:             this.river = river;
bjoern@4268:             this.refresh();
bjoern@4268:         }
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Sets the data and closes not corresponding folds in the gauge tree
bjoern@4268:      */
bjoern@4268:     public void setData(DataList[] data) {
bjoern@4268:         tree.setData(data);
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     protected void render(RiverInfo riverinfo) {
bjoern@4268:         tree.setRiverInfo(riverinfo);
bjoern@4268: 
bjoern@4268:         if (riverinfopanel == null) {
bjoern@4268:             removeAllMembers();
bjoern@4268: 
bjoern@4268:             riverinfopanel = new RiverInfoPanel(riverinfo);
bjoern@4268: 
bjoern@4268:             addMember(riverinfopanel);
bjoern@4268:             addMember(treecanvas);
bjoern@4268:         }
bjoern@4268:         else {
bjoern@4268:             riverinfopanel.setRiverInfo(riverinfo);
bjoern@4268:         }
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     @Override
bjoern@4268:         public void onResized(ResizedEvent event) {
bjoern@4268:             /* this height calculation is only an approximation and doesn't reflect
bjoern@4268:              * the real height of the the gaugetree. */
bjoern@4268:             int height = getInnerContentHeight() -
bjoern@4268:                 RiverInfoPanel.getStaticHeight();
bjoern@4268:             int width = getInnerContentWidth();
bjoern@4268: 
bjoern@4268:             if (height < 0) {
bjoern@4268:                 height = 0;
bjoern@4268:             }
bjoern@4268: 
bjoern@4268:             GWT.log("InfoPanel - onResize " + height);
bjoern@4268: 
bjoern@4268:             tree.setHeight("" + height + "px");
bjoern@4268:             tree.setWidth("" + width + "px");
bjoern@4268:         }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Hide the section stack section.
bjoern@4268:      */
bjoern@4268:     @Override
bjoern@4268:         public void hide() {
bjoern@4268:             GWT.log("InfoPanel - hide");
bjoern@4268:             this.section.setHidden(true);
bjoern@4268:         }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Show the section stack section.
bjoern@4268:      */
bjoern@4268:     @Override
bjoern@4268:         public void show() {
bjoern@4268:             GWT.log("InfoPanel - show");
bjoern@4268:             this.section.setHidden(false);
bjoern@4268:         }
bjoern@4268: 
bjoern@4268:     @Override
bjoern@4268:         public void addMember(Canvas component) {
bjoern@4268:             super.addMember(component);
bjoern@4268:             expand();
bjoern@4268:         }
bjoern@4268: 
bjoern@4268:     @Override
bjoern@4268:         public void removeMembers(Canvas[] components) {
bjoern@4268:             super.removeMembers(components);
bjoern@4268:             contract();
bjoern@4268:         }
bjoern@4268: 
bjoern@4268:     public SectionStackSection getSection() {
bjoern@4268:         return this.section;
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     protected void removeAllMembers() {
bjoern@4268:         removeMembers(getMembers());
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Expands the gauge section
bjoern@4268:      */
bjoern@4268:     public void expand() {
bjoern@4268:         section.setExpanded(true);
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     /**
bjoern@4268:      * Contracts/shrinks the expanded gauge section
bjoern@4268:      */
bjoern@4268:     public void contract() {
bjoern@4268:         section.setExpanded(false);
bjoern@4268:     }
bjoern@4268: 
bjoern@4268:     protected abstract void refresh();
bjoern@4268: 
bjoern@4268:     protected abstract String getSectionTitle();
bjoern@4268: }