Java tutorial
/* * This is part of Geomajas, a GIS framework, http://www.geomajas.org/. * * Copyright 2008-2015 Geosparc nv, http://www.geosparc.com/, Belgium. * * The program is available in open source according to the GNU Affero * General Public License. All contributions in this program are covered * by the Geomajas Contributors License Agreement. For full licensing * details, see LICENSE.txt in the project root. */ package org.geomajas.quickstart.gwt2.client.widget.info; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.MouseOutEvent; import com.google.gwt.event.dom.client.MouseOutHandler; import com.google.gwt.event.dom.client.MouseOverEvent; import com.google.gwt.event.dom.client.MouseOverHandler; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.IsWidget; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.PopupPanel; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.Widget; import org.geomajas.gwt2.client.map.attribute.Attribute; import org.geomajas.gwt2.client.map.feature.Feature; import org.geomajas.layer.feature.attribute.ImageUrlAttribute; import org.geomajas.quickstart.gwt2.client.ApplicationService; import org.geomajas.quickstart.gwt2.client.controller.feature.controller.FeatureClickedEvent; import org.geomajas.quickstart.gwt2.client.controller.feature.controller.FeatureClickedHandler; import org.geomajas.quickstart.gwt2.client.i18n.ApplicationMessages; import org.geomajas.quickstart.gwt2.client.resource.ApplicationResource; import java.util.List; import java.util.Map; /** * The info panel widget. * * @author David Debuck * */ public class InfoPanel implements IsWidget { @UiField protected PopupPanel infoPopupPanel; PopupPanel temp = new PopupPanel(); private int left; private int top; private HTMLPanel infoPopupPanelContent = new HTMLPanel(""); private final Button closeInfoPopupPanelButton = new Button(""); private ApplicationMessages msg = GWT.create(ApplicationMessages.class); private static final InfoPanelUiBinder UIBINDER = GWT.create(InfoPanelUiBinder.class); /** * UI binder interface. * * @author David Debuck * */ interface InfoPanelUiBinder extends UiBinder<Widget, InfoPanel> { } /** * Default constructor. */ public InfoPanel() { UIBINDER.createAndBindUi(this); ApplicationResource.INSTANCE.css().ensureInjected(); ApplicationService.getInstance().getMapPresenter().getEventBus().addHandler(FeatureClickedHandler.TYPE, new MyFeatureClickedHandler()); initInfoPanel(); infoPopupPanel.addDomHandler(new MouseOverHandler() { @Override public void onMouseOver(MouseOverEvent event) { ApplicationService.getInstance().setTooltipShowingAllowed(false); } }, MouseOverEvent.getType()); infoPopupPanel.addDomHandler(new MouseOutHandler() { @Override public void onMouseOut(MouseOutEvent event) { ApplicationService.getInstance().setTooltipShowingAllowed(true); } }, MouseOutEvent.getType()); } /** * Add the content tp the popup panel. * @param wrapper HTMLPanel */ public void add(HTMLPanel wrapper) { infoPopupPanel.add(wrapper); } /** * Set the popup position. * * @param left int * @param top int */ public void setPopupPosition(int left, int top) { infoPopupPanel.setPopupPosition(left, top); } /** * Hide the infoPopupPanel. */ public void hide() { infoPopupPanel.hide(); } /** * Hide the infoPopupPanel. */ public void show() { infoPopupPanel.setModal(false); infoPopupPanel.show(); } /** * * @param left int */ public void setLeft(int left) { this.left = left; } /** * * @param top int */ public void setTop(int top) { this.top = top; } @Override public Widget asWidget() { return infoPopupPanel; } /** * Handler that handles FeatureClickedEvent. * * @author David Debuck */ private class MyFeatureClickedHandler implements FeatureClickedHandler { @Override public void onFeatureClicked(FeatureClickedEvent event) { List<Feature> features = event.getFeatures(); infoPopupPanelContent.clear(); if (!features.isEmpty()) { infoPopupPanel.setPopupPosition(left, top); String previousLayerId = ""; for (final Feature feature : features) { if (!feature.getLayer().getId().equalsIgnoreCase(previousLayerId)) { Label subTitle = new Label(msg.infoPanelSubTitle() + " " + feature.getLayer().getTitle()); subTitle.addStyleName(ApplicationResource.INSTANCE.css().infoPopupPanelSubTitle()); infoPopupPanelContent.add(subTitle); } final Label featureLabel = new Label("- " + feature.getLabel()); featureLabel.addStyleName(ApplicationResource.INSTANCE.css().featureItem()); featureLabel.addMouseOverHandler(new MouseOverHandler() { @Override public void onMouseOver(MouseOverEvent event) { temp.clear(); temp.addStyleName(ApplicationResource.INSTANCE.css().detailPopupPanel()); HTMLPanel content = new HTMLPanel(""); temp.add(content); for (Object o : feature.getAttributes().entrySet()) { Map.Entry pairs = (Map.Entry) o; Attribute at = (Attribute) pairs.getValue(); if (at.getValue() instanceof ImageUrlAttribute) { Image image = new Image("images/" + at.getValue().toString()); image.setStyleName(ApplicationResource.INSTANCE.css().countryImage()); content.add(image); } else { content.add(new Label(pairs.getKey() + ": " + at.getValue())); } } temp.setPopupPosition(infoPopupPanel.getAbsoluteLeft() + 205, featureLabel.getAbsoluteTop()); temp.setAutoHideEnabled(true); temp.setModal(false); temp.show(); } }); featureLabel.addMouseOutHandler(new MouseOutHandler() { @Override public void onMouseOut(MouseOutEvent event) { temp.hide(); } }); infoPopupPanelContent.add(featureLabel); previousLayerId = feature.getLayer().getId(); } infoPopupPanel.setModal(false); if (ApplicationService.getInstance().toggleFeatureClickedListener(true)) { infoPopupPanel.hide(); } else { infoPopupPanel.show(); } } else { infoPopupPanel.hide(); } } } /** * Init the info panel. */ private void initInfoPanel() { infoPopupPanel.addStyleName(ApplicationResource.INSTANCE.css().infoPopupPanel()); HTMLPanel infoPopupPanelWrapper = new HTMLPanel(""); closeInfoPopupPanelButton.addStyleName(ApplicationResource.INSTANCE.css().closePopupPanelButton()); closeInfoPopupPanelButton.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { infoPopupPanel.hide(); ApplicationService.getInstance().setTooltipShowingAllowed(true); } }); HTMLPanel closeInfoButtonContainer = new HTMLPanel(""); closeInfoButtonContainer.addStyleName(ApplicationResource.INSTANCE.css().popupPanelHeader()); Label infoTitle = new Label(msg.infoPanelTitle()); closeInfoButtonContainer.add(infoTitle); closeInfoButtonContainer.add(closeInfoPopupPanelButton); infoPopupPanelWrapper.add(closeInfoButtonContainer); infoPopupPanelContent = new HTMLPanel(""); infoPopupPanelContent.addStyleName(ApplicationResource.INSTANCE.css().infoPopupPanelContent()); ScrollPanel infoPopupPanelScroll = new ScrollPanel(); infoPopupPanelScroll.addStyleName(ApplicationResource.INSTANCE.css().infoPopupPanelScroll()); infoPopupPanelScroll.add(infoPopupPanelContent); infoPopupPanelWrapper.add(infoPopupPanelScroll); infoPopupPanel.add(infoPopupPanelWrapper); infoPopupPanel.hide(); } }