Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/LoadingPanel.java @ 4641:f3325079dacc
Improve the up and down arrows in the theme navigation panel
Don't stretch the arrow icons and fit to their actual size. Also put the up
buttons on the left and the down buttons on the right.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 04 Dec 2012 16:16:43 +0100 |
parents | 360e22afb98b |
children |
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package de.intevation.flys.client.client.ui; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.Timer; import com.google.gwt.user.client.rpc.AsyncCallback; import com.smartgwt.client.types.Alignment; import com.smartgwt.client.types.Positioning; import com.smartgwt.client.types.VerticalAlignment; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.Img; import com.smartgwt.client.widgets.Label; import com.smartgwt.client.widgets.events.ClickEvent; import com.smartgwt.client.widgets.events.ClickHandler; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.VLayout; import de.intevation.flys.client.client.Config; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.event.HasStepBackHandlers; import de.intevation.flys.client.client.event.StepBackEvent; import de.intevation.flys.client.client.event.StepBackHandler; import de.intevation.flys.client.client.services.DescribeArtifactService; import de.intevation.flys.client.client.services.DescribeArtifactServiceAsync; import de.intevation.flys.client.shared.model.Artifact; import de.intevation.flys.client.shared.model.ArtifactDescription; import de.intevation.flys.client.shared.model.CalculationMessage; import de.intevation.flys.client.shared.model.DataList; import java.util.ArrayList; import java.util.List; public class LoadingPanel extends Canvas implements HasStepBackHandlers { private static final long serialVersionUID = -7806425431408987601L; public static final int UPDATE_INTERVAL = 1000 * 3; public static final DescribeArtifactServiceAsync describe = GWT.create(DescribeArtifactService.class); private FLYSConstants MSG = GWT.create(FLYSConstants.class); protected List<StepBackHandler> handlers; protected CollectionView parent; protected Artifact artifact; protected VLayout dialog; protected HLayout cancelRow; protected Label msg; protected Label title; protected int i; public LoadingPanel(CollectionView parent, Artifact artifact) { super(); this.handlers = new ArrayList<StepBackHandler>(); this.parent = parent; this.artifact = artifact; this.msg = new Label(""); this.title = new Label(""); this.dialog = createDialog(); this.i = 0; initLayout(); startTimer(); } private void initLayout() { setWidth("100%"); setHeight("98%"); setBackgroundColor("#7f7f7f"); setOpacity(50); setPosition(Positioning.RELATIVE); parent.addChild(this); parent.addChild(dialog); dialog.moveTo(0, 20); moveTo(0, 7); } public void setArtifact(Artifact artifact) { this.artifact = artifact; } public Artifact getArtifact() { return artifact; } @Override public void addStepBackHandler(StepBackHandler handler) { if (handler != null) { handlers.add(handler); } } /** * This method is called after the user has clicked the button to cancel the * current process. * * @param e The StepBackEvent. */ protected void fireStepBackEvent(StepBackEvent e) { for (StepBackHandler handler: handlers) { handler.onStepBack(e); } } protected VLayout createDialog() { String baseUrl = GWT.getHostPageBaseURL(); title.setStyleName("loading-title"); title.setHeight(25); title.setWidth100(); msg.setStyleName("loading-message"); msg.setValign(VerticalAlignment.TOP); msg.setWidth100(); msg.setHeight(100); Img img = new Img(baseUrl + MSG.loadingImg(), 25, 25); Label cancelLabel = new Label(MSG.cancelCalculationLabel()); Img cancel = new Img(baseUrl + MSG.cancelCalculation(), 25, 25); cancel.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent e) { cancel(); } }); cancelRow = new HLayout(); cancelRow.setHeight(27); cancelRow.setWidth100(); cancelRow.addMember(cancel); cancelRow.addMember(cancelLabel); VLayout box = new VLayout(); box.setStyleName("loading-box"); box.setAlign(VerticalAlignment.TOP); box.setDefaultLayoutAlign(VerticalAlignment.TOP); box.addMember(title); box.addMember(msg); box.addMember(cancelRow); box.setMembersMargin(0); box.setHeight(125); box.setWidth(275); dialog = new VLayout(); dialog.setAlign(Alignment.CENTER); dialog.setDefaultLayoutAlign(Alignment.CENTER); dialog.setMembersMargin(5); dialog.setHeight100(); dialog.setWidth100(); dialog.addMember(img); dialog.addMember(box); return dialog; } public String getTargetState() { ArtifactDescription desc = getArtifact().getArtifactDescription(); DataList[] oldData = desc.getOldData(); return oldData[oldData.length -1].getState(); } private void startTimer() { Timer t = new Timer() { @Override public void run() { update(); } }; t.schedule(UPDATE_INTERVAL); } protected void update() { updateMessage(); final Config config = Config.getInstance(); final String locale = config.getLocale(); describe.describe(locale, artifact, new AsyncCallback<Artifact>() { @Override public void onFailure(Throwable t) { GWT.log("Error while DESCRIBE artifact: " + t.getMessage()); startTimer(); } @Override public void onSuccess(Artifact artifact) { GWT.log("Successfully DESCRIBE artifact."); setArtifact(artifact); if (artifact.isInBackground()) { startTimer(); } else { finish(); } } }); } protected void updateMessage() { List<CalculationMessage> messages = artifact.getBackgroundMessages(); if (messages != null && messages.size() > 0) { CalculationMessage calcMsg = messages.get(0); title.setContents(getStepTitle(calcMsg)); msg.setContents(calcMsg.getMessage()); } else { title.setContents(MSG.calculationStarted()); } } protected String getStepTitle(CalculationMessage msg) { return MSG.step() + " " + msg.getCurrentStep() + "/" + msg.getSteps(); } private void cancel() { fireStepBackEvent(new StepBackEvent(getTargetState())); parent.removeChild(dialog); parent.removeChild(this); } private void finish() { parent.removeChild(dialog); parent.removeChild(this); parent.setArtifact(artifact); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :