Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/GaugePanel.java @ 4204:9f9843491ac4
Only create the GaugeTree and RiverInfoPanel once
This fixes resizing issues when changing the river. SmartGWT is not able to
recalculate the height and width if a GWT widget is inserted later. Every
attempt to call a recalculation manually did fail.
Fix for flys/issue925 (W-INFO / Pegel-Info-Modul / Zeile Gewässer-INFOS)
author | Björn Ricks <bjoern.ricks@intevation.de> |
---|---|
date | Mon, 22 Oct 2012 15:29:56 +0200 |
parents | de795c13dcfb |
children | 0dd8963cec9c |
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package de.intevation.flys.client.client.ui; import com.google.gwt.core.client.GWT; import com.google.gwt.i18n.client.NumberFormat; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Anchor; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.smartgwt.client.types.Overflow; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.events.ResizedEvent; import com.smartgwt.client.widgets.events.ResizedHandler; import com.smartgwt.client.widgets.layout.SectionStackSection; import com.smartgwt.client.widgets.layout.VLayout; import de.intevation.flys.client.client.FLYS; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.services.GaugeOverviewInfoService; import de.intevation.flys.client.client.services.GaugeOverviewInfoServiceAsync; import de.intevation.flys.client.shared.model.DataList; import de.intevation.flys.client.shared.model.RiverInfo; /** * The GaugePanel is intended to be used within a SectionStackSection * It extends the VLayout by two methods to show and hide the * section stack section. * * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a> */ public class GaugePanel extends VLayout implements ResizedHandler { /** SectionStackSection where this GaugePanel belongs in*/ private SectionStackSection sectionStack; /** Name of the river */ private String river; /** The message class that provides i18n strings.*/ protected FLYSConstants MSG = GWT.create(FLYSConstants.class); protected GaugeOverviewInfoServiceAsync gaugeOverviewInfoService = GWT.create(GaugeOverviewInfoService.class); protected GaugeTree gaugetree; protected Canvas gaugetreecanvas; protected RiverInfoPanel riverinfopanel; /** * Creates a new VLayout with a SectionStackSection * The GaugePanel's SectionStackSection is hidden by default. * * @param flys The FLYS object * @param sectionStack The section stack section to place the VLayout in. */ public GaugePanel(FLYS flys, SectionStackSection sectionStack) { gaugetree = new GaugeTree(flys); gaugetreecanvas = new Canvas(); gaugetreecanvas.addChild(gaugetree); setOverflow(Overflow.HIDDEN); sectionStack.setHidden(true); sectionStack.setItems(this); this.sectionStack = sectionStack; setStyleName("gaugepanel"); addResizedHandler(this); } /** * Sets and loads the river data if river is not the current set river */ public void setRiver(String river) { if (!river.equals(this.river)) { this.river = river; this.refresh(); } } /** * Sets the data and closes not corresponding folds in the gauge tree */ public void setData(DataList[] data) { gaugetree.setData(data); } /** * Loads the river info and renders it afterwards */ public void refresh() { gaugeOverviewInfoService.getRiverInfo(this.river, new AsyncCallback<RiverInfo>() { @Override public void onFailure(Throwable e) { GWT.log("Could not load the river info." + e); } @Override public void onSuccess(RiverInfo riverinfo) { GWT.log("Loaded river info"); renderGaugeOverviewInfo(riverinfo); } }); } public void renderGaugeOverviewInfo(RiverInfo riverinfo) { gaugetree.setGauges(riverinfo); if (riverinfopanel == null) { removeMembers(getMembers()); riverinfopanel = new RiverInfoPanel(riverinfo); gaugetreecanvas.setWidth("100%"); addMember(riverinfopanel); addMember(gaugetreecanvas); } else { riverinfopanel.setRiverInfo(riverinfo); } } @Override public void onResized(ResizedEvent event) { /* this height calculation is only an approximation and doesn't reflect * the real height of the the gaugetree. */ int height = getInnerContentHeight() - RiverInfoPanel.getStaticHeight(); if (height < 0) { height = 0; } GWT.log("GaugePanel - onResize " + height); gaugetree.setHeight("" + height + "px"); for (Canvas canvas : getMembers()) { GWT.log("GaugePanel - member height " + canvas.getHeight()); } } /** * Hide the section stack section. */ @Override public void hide() { GWT.log("GaugePanel - hide"); this.sectionStack.setHidden(true); } /** * Show the section stack section. */ @Override public void show() { GWT.log("GaugePanel - show"); this.sectionStack.setHidden(false); } }