bjoern@3715: package de.intevation.flys.client.client.ui;
bjoern@3715: 
ingo@3719: import java.util.ArrayList;
ingo@3719: import java.util.Iterator;
bjoern@3715: import java.util.List;
bjoern@3715: 
bjoern@3715: import com.google.gwt.core.client.GWT;
ingo@3719: import com.google.gwt.i18n.client.NumberFormat;
bjoern@3715: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@3719: import com.google.gwt.user.client.ui.DecoratorPanel;
ingo@3719: import com.google.gwt.user.client.ui.Grid;
ingo@3719: import com.google.gwt.user.client.ui.HorizontalPanel;
ingo@3719: import com.google.gwt.user.client.ui.Label;
ingo@3719: import com.google.gwt.user.client.ui.ScrollPanel;
bjoern@3715: import com.google.gwt.user.client.ui.Tree;
bjoern@3715: import com.google.gwt.user.client.ui.TreeItem;
bjoern@3715: 
ingo@3719: import com.smartgwt.client.types.Alignment;
bjoern@3715: import com.smartgwt.client.types.Overflow;
ingo@3719: import com.smartgwt.client.widgets.events.ResizedEvent;
ingo@3719: import com.smartgwt.client.widgets.events.ResizedHandler;
ingo@3719: import com.smartgwt.client.widgets.layout.HLayout;
bjoern@3715: import com.smartgwt.client.widgets.layout.SectionStackSection;
bjoern@3715: import com.smartgwt.client.widgets.layout.VLayout;
bjoern@3715: 
bjoern@3715: import de.intevation.flys.client.client.FLYSConstants;
bjoern@3715: import de.intevation.flys.client.client.services.GaugeOverviewInfoService;
bjoern@3715: import de.intevation.flys.client.client.services.GaugeOverviewInfoServiceAsync;
bjoern@3715: import de.intevation.flys.client.shared.model.GaugeInfo;
bjoern@3715: import de.intevation.flys.client.shared.model.RiverInfo;
bjoern@3715: 
bjoern@3715: /**
bjoern@3715:  * The GaugePanel is intendet to be used within a SectionStackSection
bjoern@3715:  * It extends the VLayout by two methods to show and hide the
bjoern@3715:  * section stack section.
bjoern@3715:  */
ingo@3719: public class GaugePanel extends VLayout implements ResizedHandler {
bjoern@3715: 
bjoern@3715:     /** SectionStackSection where this GaugePanel belongs in*/
bjoern@3715:     private SectionStackSection sectionStack;
bjoern@3715: 
bjoern@3715:     /** Name of the river */
bjoern@3715:     private String river;
bjoern@3715: 
bjoern@3715:     /** The message class that provides i18n strings.*/
bjoern@3715:     protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
bjoern@3715: 
bjoern@3715:     protected GaugeOverviewInfoServiceAsync gaugeOverviewInfoService =
bjoern@3715:         GWT.create(GaugeOverviewInfoService.class);
bjoern@3715: 
ingo@3719:     protected GaugeTree gaugetree = new GaugeTree();
ingo@3719: 
ingo@3719:     protected RiverInfoPanel riverinfopanel;
ingo@3719: 
bjoern@3715:     /**
bjoern@3715:      * Creates a new VLayout with a SectionStackSection
bjoern@3715:      * The GaugePanel's SectionStackSection is hidden by default.
bjoern@3715:      * @param sectionStack The section stack section to place the VLayout in.
bjoern@3715:      */
bjoern@3715:     public GaugePanel(SectionStackSection sectionStack) {
ingo@3719:         setOverflow(Overflow.HIDDEN);
ingo@3719:         sectionStack.setHidden(true);
bjoern@3715:         sectionStack.setItems(this);
bjoern@3715:         this.sectionStack = sectionStack;
ingo@3719:         setStyleName("gaugepanel");
ingo@3719:         addResizedHandler(this);
bjoern@3715:     }
bjoern@3715: 
ingo@3719:     /**
ingo@3719:      * Sets and loads the river data if river is not the current set river
ingo@3719:      */
bjoern@3715:     public void setRiver(String river) {
ingo@3719:         if (!river.equals(this.river)) {
ingo@3719:             this.river = river;
ingo@3719:             this.refresh();
ingo@3719:         }
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     /**
bjoern@3715:      * Loads the river info and renders it afterwards
bjoern@3715:      */
bjoern@3715:     public void refresh() {
bjoern@3715:         gaugeOverviewInfoService.getRiverInfo(this.river, new AsyncCallback<RiverInfo>() {
bjoern@3715:             public void onFailure(Throwable e) {
bjoern@3715:                 GWT.log("Could not load the river info." + e);
bjoern@3715:             }
bjoern@3715: 
bjoern@3715:             public void onSuccess(RiverInfo riverinfo) {
bjoern@3715:                 GWT.log("Loaded river info");
bjoern@3715:                 renderGaugeOverviewInfo(riverinfo);
ingo@3719:                 gaugetree.openAll();
bjoern@3715:             }
bjoern@3715:         });
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     public void renderGaugeOverviewInfo(RiverInfo riverinfo) {
ingo@3719:         removeMembers(getMembers());
bjoern@3715: 
ingo@3719:         riverinfopanel = new RiverInfoPanel(riverinfo);
ingo@3719:         addMember(riverinfopanel);
ingo@3719:         addMember(gaugetree);
bjoern@3715: 
ingo@3719:         gaugetree.setGauges(riverinfo);
ingo@3719:     }
bjoern@3715: 
ingo@3719:     @Override
ingo@3719:     public void onResized(ResizedEvent event) {
ingo@3719:         /* this height calculation is only an approximation and doesn't reflect
ingo@3719:          * the real height of the the gaugetree. */
ingo@3719:         int height = getInnerContentHeight() -
ingo@3719:             (RiverInfoPanel.HEIGHT +
ingo@3719:             (2 * RiverInfoPanel.BORDER_WIDTH) +
ingo@3719:             (2 * RiverInfoPanel.PADDING) +
ingo@3719:             (2 * RiverInfoPanel.MARGIN));
ingo@3719: 
ingo@3719:         if (height < 0) {
ingo@3719:             height = 0;
bjoern@3715:         }
ingo@3719: 
ingo@3719:         gaugetree.setHeight("" + height + "px");
bjoern@3715:     }
bjoern@3715: 
ingo@3719: 
bjoern@3715:     /**
bjoern@3715:      * Hide the section stack section.
bjoern@3715:      */
bjoern@3715:     public void hide() {
bjoern@3715:         GWT.log("GaugePanel - hide");
bjoern@3715:         this.sectionStack.setHidden(true);
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     /**
bjoern@3715:      * Show the section stack section.
bjoern@3715:      */
bjoern@3715:     public void show() {
bjoern@3715:         GWT.log("GaugePanel - show");
bjoern@3715:         this.sectionStack.setHidden(false);
bjoern@3715:     }
bjoern@3715: 
ingo@3719:     class GaugeTree extends ScrollPanel {
ingo@3719: 
ingo@3719:         private Tree tree;
ingo@3719: 
ingo@3719:         public GaugeTree() {
ingo@3719:             tree = new Tree();
ingo@3719:             setWidget(tree);
ingo@3719:         }
ingo@3719: 
ingo@3719:         /**
ingo@3719:          * Resets the items of the tree.
ingo@3719:          * If the list of gauges is empty or null the tree will be empty.
ingo@3719:          */
ingo@3719:         public void setGauges(RiverInfo riverinfo) {
ingo@3719:             tree.clear();
ingo@3719: 
ingo@3719:             List<GaugeInfo> gauges = riverinfo.getGauges();
ingo@3719: 
ingo@3719:             if (gauges != null && !gauges.isEmpty()) {
ingo@3719: 
ingo@3719:                 ArrayList<GaugeInfo> emptygauges = new ArrayList<GaugeInfo>();
ingo@3719: 
ingo@3719:                 if (!riverinfo.isKmUp()) {
ingo@3719:                     for (GaugeInfo gauge : gauges) {
ingo@3719:                         addGauge(gauge, emptygauges);
ingo@3719:                     }
ingo@3719:                 }
ingo@3719:                 else {
ingo@3719:                     for (int i = gauges.size(); i >= 0; i--) {
ingo@3719:                         GaugeInfo gauge = gauges.get(i);
ingo@3719:                         addGauge(gauge, emptygauges);
ingo@3719:                     }
ingo@3719:                 }
ingo@3719: 
ingo@3719:                 // put empty gauges to the end
ingo@3719:                 for (GaugeInfo gauge : emptygauges) {
ingo@3719:                     addGauge(gauge);
ingo@3719:                 }
ingo@3719:             }
ingo@3719:         }
ingo@3719: 
ingo@3719:         private void addGauge(GaugeInfo gauge, List<GaugeInfo> empty) {
ingo@3719:             if (gauge.getKmStart() != null && gauge.getKmEnd() != null) {
ingo@3719:                 addGauge(gauge);
ingo@3719:             }
ingo@3719:             else {
ingo@3719:                 empty.add(gauge);
ingo@3719:             }
ingo@3719:         }
ingo@3719: 
ingo@3719:         private void addGauge(GaugeInfo gauge) {
ingo@3719:             TreeItem gaugeitem = new GaugeInfoItem(gauge);
ingo@3719:             tree.addItem(gaugeitem);
ingo@3719:         }
ingo@3719: 
ingo@3719:         public void openAll() {
ingo@3719:             for (Iterator<TreeItem> it = tree.treeItemIterator(); it.hasNext();) {
ingo@3719:                 TreeItem item = it.next();
ingo@3719:                 item.setState(true);
ingo@3719:             }
ingo@3719:         }
ingo@3719:     }
ingo@3719: 
ingo@3719:     class RiverInfoPanel extends HorizontalPanel {
ingo@3719: 
ingo@3719:         public final static int HEIGHT = 30;
ingo@3719:         public final static int BORDER_WIDTH = 3;
ingo@3719:         public final static int PADDING = 8;
ingo@3719:         public final static int MARGIN = 10;
bjoern@3715: 
bjoern@3715:         public RiverInfoPanel(RiverInfo riverinfo) {
ingo@3719:             setStyleName("riverinfopanel");
ingo@3719:             setHeight("" + HEIGHT + "px");
ingo@3719:             setVerticalAlignment(ALIGN_MIDDLE);
bjoern@3715: 
ingo@3719:             NumberFormat nf = NumberFormat.getDecimalFormat();
ingo@3719: 
ingo@3719:             addLabel(riverinfo.getName(), false);
bjoern@3715: 
bjoern@3715:             String kmtext = "";
bjoern@3715:             Double start = riverinfo.getKmStart();
bjoern@3715:             Double end = riverinfo.getKmEnd();
bjoern@3715: 
bjoern@3715:             if (!riverinfo.isKmUp()) {
bjoern@3715:                 Double tmp = end;
bjoern@3715:                 end = start;
bjoern@3715:                 start = tmp;
bjoern@3715:             }
bjoern@3715:             if (end != null) {
ingo@3719:                 kmtext += nf.format(end);
bjoern@3715:                 kmtext += " - ";
bjoern@3715:             }
bjoern@3715:             if (start != null) {
ingo@3719:                 kmtext += nf.format(start);
bjoern@3715:             }
bjoern@3715:             kmtext += " km";
bjoern@3715: 
ingo@3719:             addLabel(kmtext, false);
bjoern@3715: 
bjoern@3715:             String qtext = "";
bjoern@3715:             Double qmin = riverinfo.getMinQ();
bjoern@3715:             Double qmax = riverinfo.getMaxQ();
bjoern@3715:             if (qmin != null) {
ingo@3719:                 qtext += nf.format(qmin);
ingo@3719:                 qtext += " " + MSG.gauge_q_unit();
bjoern@3715:                 qtext += " - ";
bjoern@3715:             }
bjoern@3715:             if (qmax != null) {
ingo@3719:                 qtext += nf.format(qmax);
ingo@3719:                 qtext += " " + MSG.gauge_q_unit();
bjoern@3715:             }
bjoern@3715: 
ingo@3719:             addLabel(qtext, false);
ingo@3719:         }
ingo@3719: 
ingo@3719:         private void addLabel(String text, boolean wordwrap) {
ingo@3719:             Label label = new Label(text, wordwrap);
ingo@3719:             add(label);
ingo@3719:             setCellHeight(label, "" + HEIGHT + "px");
bjoern@3715:         }
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     class GaugeInfoItem extends TreeItem {
bjoern@3715:         public GaugeInfoItem(GaugeInfo gauge) {
bjoern@3715:             GaugeInfoHead gaugeinfohead = new GaugeInfoHead(gauge);
bjoern@3715:             GaugeInfoPanel gaugeinfopanel = new GaugeInfoPanel(gauge);
bjoern@3715:             setWidget(gaugeinfohead);
bjoern@3715:             addItem(gaugeinfopanel);
bjoern@3715:         }
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     class GaugeInfoHead extends HLayout {
bjoern@3715: 
bjoern@3715:         public GaugeInfoHead(GaugeInfo gauge) {
bjoern@3715:             setStyleName("gaugeinfohead");
bjoern@3715:             setAutoHeight();
bjoern@3715:             setAutoWidth();
bjoern@3715: 
ingo@3719:             NumberFormat nf = NumberFormat.getDecimalFormat();
ingo@3719: 
ingo@3719:             Label label = new Label(gauge.getName(), true);
bjoern@3715:             addMember(label);
bjoern@3715: 
ingo@3719:             Double start;
ingo@3719:             Double end;
ingo@3719: 
ingo@3719:             if (!gauge.isKmUp()) {
ingo@3719:                 start = gauge.getKmStart();
ingo@3719:                 end   = gauge.getKmEnd();
ingo@3719:             }
ingo@3719:             else {
ingo@3719:                 start = gauge.getKmEnd();
ingo@3719:                 end   = gauge.getKmStart();
ingo@3719:             }
ingo@3719: 
bjoern@3715:             String kmtext = "";
bjoern@3715:             if (start != null) {
ingo@3719:                 kmtext += nf.format(start);
bjoern@3715:                 kmtext += " - ";
bjoern@3715:             }
bjoern@3715:             if (end != null) {
ingo@3719:                 kmtext += nf.format(end);
bjoern@3715:             }
ingo@3719:             if (start != null || end != null) {
ingo@3719:                 kmtext += " km";
ingo@3719:             }
bjoern@3715: 
bjoern@3715:             label = new Label(kmtext);
bjoern@3715: 
bjoern@3715:             addMember(label);
ingo@3719: 
ingo@3719:             Double station = gauge.getStation();
ingo@3719:             if (station != null) {
ingo@3719:                 String stext = nf.format(station);
ingo@3719:                 stext += " km";
ingo@3719:                 label = new Label(stext);
ingo@3719:                 addMember(label);
ingo@3719:             }
bjoern@3715:         }
bjoern@3715:     }
bjoern@3715: 
bjoern@3715:     class GaugeInfoPanel extends DecoratorPanel {
ingo@3719: 
bjoern@3715:         public GaugeInfoPanel(GaugeInfo gauge) {
bjoern@3715:             setStyleName("gaugeinfopanel");
bjoern@3715:             Grid grid = new Grid(4, 2);
bjoern@3715: 
ingo@3719:             NumberFormat nf = NumberFormat.getDecimalFormat();
ingo@3719: 
ingo@3719:             Double minw = gauge.getMinW();
ingo@3719:             Double maxw = gauge.getMaxW();
ingo@3719:             if (minw != null && maxw != null) {
ingo@3719:                 grid.setText(0, 0, MSG.wq_value_q());
ingo@3719:                 grid.setText(0, 1, "" + nf.format(minw) +
ingo@3719:                         " - " + nf.format(maxw));
ingo@3719:             }
ingo@3719: 
ingo@3719:             Double minq = gauge.getMinQ();
ingo@3719:             Double maxq = gauge.getMaxQ();
ingo@3719:             if (minq != null && maxq != null) {
ingo@3719:                 grid.setText(1, 0, MSG.wq_value_w());
ingo@3719:                 grid.setText(1, 1, "" + nf.format(minq) +
ingo@3719:                         " - " + nf.format(maxq));
ingo@3719:             }
ingo@3719: 
ingo@3719:             Double aeo = gauge.getAeo();
ingo@3719:             if (aeo != null) {
ingo@3719:                 grid.setText(2, 0, "AEO [km²]");
ingo@3719:                 grid.setText(2, 1, "" + nf.format(aeo));
ingo@3719:             }
ingo@3719: 
ingo@3719:             Double datum = gauge.getDatum();
ingo@3719:             if (datum != null) {
ingo@3719:                 grid.setText(3, 0, MSG.gauge_zero() + " [" +
ingo@3719:                         gauge.getWstUnit() + "]");
ingo@3719:                 grid.setText(3, 1, "" + nf.format(datum));
ingo@3719:             }
bjoern@3715: 
bjoern@3715:             setWidget(grid);
bjoern@3715:         }
bjoern@3715:     }
bjoern@3715: }