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geoportal-data-viewer-app
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Added Layer Style and Show Legend facilities #11

Merged
francesco.mangiacrapa merged 1 commits from layer_style_and_legend into master 2023-01-16 11:37:58 +01:00
Conversation 0 Commits 1 Files Changed 6 +358 -39
6 changed files with 358 additions and 39 deletions
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20
.settings/org.eclipse.wst.common.component
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@ -19,6 +19,8 @@
@ -61,6 +63,8 @@
@ -103,6 +107,8 @@
@ -145,6 +151,8 @@
@ -187,6 +195,8 @@
@ -229,6 +239,8 @@
@ -271,6 +283,8 @@
@ -313,6 +327,8 @@
@ -355,6 +371,8 @@
@ -397,6 +415,8 @@

32
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/GeonaDataViewMainPanel.java
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@ -15,12 +15,12 @@ import org.gcube.portlets.user.geoportaldataviewer.client.GeoportalDataViewerCon
import org.gcube.portlets.user.geoportaldataviewer.client.GeoportalDataViewerConstants.MAP_PROJECTION;
import org.gcube.portlets.user.geoportaldataviewer.client.events.ChangeMapLayerEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.events.MapExtentToEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.events.collections.CloseCollectionEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.events.collections.OpenCollectionEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.gis.OpenLayerMap;
import org.gcube.portlets.user.geoportaldataviewer.client.resources.GNAIcons;
import org.gcube.portlets.user.geoportaldataviewer.client.resources.GNAImages;
import org.gcube.portlets.user.geoportaldataviewer.client.ui.cms.search.SearchFacilityUI;
import org.gcube.portlets.user.geoportaldataviewer.client.ui.layercollection.LayerCollectionPanel;
import org.gcube.portlets.user.geoportaldataviewer.client.ui.map.ExtentMapUtil;
import org.gcube.portlets.user.geoportaldataviewer.client.ui.map.ExtentMapUtil.Location;
import org.gcube.portlets.user.geoportaldataviewer.shared.GCubeCollection;
@ -521,44 +521,22 @@ public class GeonaDataViewMainPanel extends Composite {
for (GCubeCollection coll : collection) {
GWT.log("Found available collection " + coll);
String label = coll.getUcd().getName();
final String collectionID = coll.getUcd().getId(); // collectionID == UCD_Id
CheckBox checkbox = new CheckBox(label);
checkbox.setId("gcubeCollectionSelector_" + collectionID);
LayerCollectionPanel lcp = new LayerCollectionPanel(coll, applicationBus);
checkbox.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
GWT.log("Collection selector flag changed to value : " + event.toDebugString());
// String collectionID = ((CheckBox) event.getSource()).getId().replace("gcubeCollectionSelector_",
// "");
GWT.log("Collection ID is : " + collectionID + ", event value: " + event.getValue());
if (event.getValue()) {
// OPEN COLLECTION
applicationBus.fireEvent(new OpenCollectionEvent(collectionID));
} else {
// CLOSE COLLECTION
applicationBus.fireEvent(new CloseCollectionEvent(collectionID));
}
}
});
openCollectionPanel.add(checkbox);
openCollectionPanel.add(lcp);
List<CheckBox> listCollections = mapCollectionCheckBoxes.get(collectionID);
if (listCollections == null)
listCollections = new ArrayList<CheckBox>();
listCollections.add(checkbox);
listCollections.add(lcp.getCheckbox());
mapCollectionCheckBoxes.put(collectionID, listCollections);
// Opening All Collections if openCollectionID is null
if (openCollectionID == null) {
checkbox.setValue(true, true);
lcp.getCheckbox().setValue(true, true);
// String collectionID = checkbox.getId().replace("gcubeCollectionSelector_",
// "");
GWT.log("Opening the collection: " + collectionID);

287
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/layercollection/LayerCollectionPanel.java Normal file
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@ -0,0 +1,287 @@
package org.gcube.portlets.user.geoportaldataviewer.client.ui.layercollection;
import java.util.HashMap;
import org.gcube.application.geoportalcommon.shared.geoportal.materialization.IndexLayerDV;
import org.gcube.portlets.user.geoportaldataviewer.client.GeoportalDataViewer;
import org.gcube.portlets.user.geoportaldataviewer.client.GeoportalDataViewerServiceAsync;
import org.gcube.portlets.user.geoportaldataviewer.client.events.collections.CloseCollectionEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.events.collections.OpenCollectionEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.util.URLUtil;
import org.gcube.portlets.user.geoportaldataviewer.shared.GCubeCollection;
import org.gcube.portlets.user.geoportaldataviewer.shared.ViewerConfiguration;
import org.gcube.portlets.user.geoportaldataviewer.shared.gis.wms.GeoInformationForWMSRequest;
import com.github.gwtbootstrap.client.ui.Button;
import com.github.gwtbootstrap.client.ui.CheckBox;
import com.github.gwtbootstrap.client.ui.ListBox;
import com.github.gwtbootstrap.client.ui.constants.ButtonType;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.FontWeight;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.ErrorEvent;
import com.google.gwt.event.dom.client.ErrorHandler;
import com.google.gwt.event.dom.client.LoadEvent;
import com.google.gwt.event.dom.client.LoadHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* The Class LayerCollectionPanel.
*
* @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
*
* Jan 16, 2023
*/
public class LayerCollectionPanel extends Composite {
public static String COLORSCALERANGE = "COLORSCALERANGE";
@UiField
HTMLPanel basePanel;
@UiField
HTMLPanel stylePanel;
@UiField
HTMLPanel styleListPanel;
@UiField
Button buttonLegend;
@UiField
ScrollPanel legendPanel;
private CheckBox checkbox;
private GeoInformationForWMSRequest geoInformation;
private static LayerCollectionPanelUiBinder uiBinder = GWT.create(LayerCollectionPanelUiBinder.class);
private ListBox listBoxStyles = new ListBox();
/**
* The Interface LayerCollectionPanelUiBinder.
*
* @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
*
* Jan 16, 2023
*/
interface LayerCollectionPanelUiBinder extends UiBinder<Widget, LayerCollectionPanel> {
}
/**
* Instantiates a new layer collection panel.
*
* @param coll the coll
* @param applicationBus the application bus
*/
public LayerCollectionPanel(GCubeCollection coll, HandlerManager applicationBus) {
initWidget(uiBinder.createAndBindUi(this));
buttonLegend.setType(ButtonType.LINK);
legendPanel.setVisible(false);
GWT.log("Found available collection " + coll);
String label = coll.getUcd().getName();
final String collectionID = coll.getUcd().getId(); // collectionID == UCD_Id
checkbox = new CheckBox(label);
checkbox.setId("gcubeCollectionSelector_" + collectionID);
checkbox.getElement().getStyle().setFontWeight(FontWeight.BOLD);
checkbox.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
GWT.log("Collection selector flag changed to value : " + event.toDebugString());
// String collectionID = ((CheckBox) event.getSource()).getId().replace("gcubeCollectionSelector_",
// "");
GWT.log("Collection ID is : " + collectionID + ", event value: " + event.getValue());
if (event.getValue()) {
// OPEN COLLECTION
applicationBus.fireEvent(new OpenCollectionEvent(collectionID));
} else {
// CLOSE COLLECTION
legendPanel.clear();
legendPanel.setVisible(false);
applicationBus.fireEvent(new CloseCollectionEvent(collectionID));
}
}
});
basePanel.add(checkbox);
ViewerConfiguration theConfig = GeoportalDataViewer.getStatus().getViewerConfig();
GCubeCollection toOpen = theConfig.getAvailableCollections().get(collectionID);
// Check if indexes is empty
if (toOpen.getIndexes() == null || toOpen.getIndexes().isEmpty()) {
GWT.log("Unexpected empty indexes in collection " + toOpen);
Window.alert("Cannot open collection index layer for " + toOpen.getUcd().getName() + ".");
return;
}
// TODO Get Default Index Layer
// For now we just take the first - only 1 is expected
IndexLayerDV layer = toOpen.getIndexes().get(0);
// Open Index Layer
HashMap<String, String> ogcLinks = layer.getLayer().getOgcLinks();
final String wmsLink = ogcLinks.get("wms");
final String layerName = URLUtil.getValueOfParameter("layers", wmsLink);
GeoportalDataViewerServiceAsync.Util.getInstance().parseWmsRequest(wmsLink, layerName,
new AsyncCallback<GeoInformationForWMSRequest>() {
@Override
public void onFailure(Throwable caught) {
Window.alert(caught.getMessage());
}
@Override
public void onSuccess(GeoInformationForWMSRequest geoInfoWMS) {
geoInformation = geoInfoWMS;
GWT.log("Parsed WMS Request returned: " + geoInfoWMS);
if (geoInfoWMS.getStyles() != null && geoInfoWMS.getStyles().getGeoStyles() != null) {
if (geoInfoWMS.getStyles().getGeoStyles().size() > 0) {
stylePanel.setVisible(true);
listBoxStyles.clear();
for (String styleName : geoInfoWMS.getStyles().getGeoStyles()) {
listBoxStyles.addItem(styleName, styleName);
}
styleListPanel.add(listBoxStyles);
}
}
buttonLegend.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
GWT.log("is isToggle: " + buttonLegend.isToggle());
GWT.log("is isToggled: " + buttonLegend.isToggled());
if (legendPanel.isVisible()) {
legendPanel.clear();
legendPanel.setVisible(false);
} else {
legendPanel.setVisible(true);
loadLegend(wmsLink);
}
}
});
}
});
}
/**
* Gets the checkbox.
*
* @return the checkbox
*/
public CheckBox getCheckbox() {
return checkbox;
}
/**
* Load legend.
*
* @param wmsLink the wms link
*/
private void loadLegend(String wmsLink) {
legendPanel.clear();
String theLayerName = geoInformation.getLayerName();
final FlexTable flexTable = new FlexTable();
legendPanel.add(flexTable);
// Case no style found
if (listBoxStyles.getSelectedValue() == null) {
flexTable.setWidget(0, 0, new HTML("No style found"));
return;
}
FlowPanel flow = new FlowPanel();
flow.add(new HTMLPanel("Legend for: " + theLayerName));
final HorizontalPanel hpLegend = new HorizontalPanel();
String url = geoInformation.getBaseWmsServiceHost() + "?service=WMS&" + "version="
+ URLUtil.getValueOfParameter("version", wmsLink) + "&" + "request=GetLegendGraphic&" + "layer="
+ theLayerName;
String styleName = null;
try {
styleName = listBoxStyles.getSelectedValue();
} catch (Exception e) {
}
styleName = styleName != null && !styleName.isEmpty() ? styleName : "";
if (!geoInformation.isNcWMS()) {
url += "&format=image/png" + "&STYLE=" + styleName
+ "&LEGEND_OPTIONS=forceRule:True;dx:0.2;dy:0.2;mx:0.2;my:0.2;fontStyle:bold;"
+ "borderColor:000000;border:true;fontColor:000000;fontSize:14";
} else {
int isNcWmsStyle = styleName.indexOf("/");
if (isNcWmsStyle != -1) {
styleName = styleName.substring(isNcWmsStyle + 1, styleName.length());
}
url += "&palette=" + styleName;
if (geoInformation.getMapWMSNoStandard() != null) {
for (String key : geoInformation.getMapWMSNoStandard().keySet()) { // ADDING COLORSCALERANGE?
if (key.compareToIgnoreCase(COLORSCALERANGE) == 0) {
url += "&" + key + "=" + geoInformation.getMapWMSNoStandard().get(key);
break;
}
}
}
}
GWT.log(url);
flexTable.setStyleName("layer-style-panel-table-legend");
flexTable.setWidget(0, 0, new Label("Legend"));
final Image legendImage = new Image(url);
legendImage.addLoadHandler(new LoadHandler() {
@Override
public void onLoad(LoadEvent event) {
}
});
legendImage.addErrorHandler(new ErrorHandler() {
@Override
public void onError(ErrorEvent event) {
GWT.log("ErrorEvent ");
flexTable.setWidget(0, 1, new HTML("Error on loading the style"));
}
});
hpLegend.add(legendImage);
flexTable.setWidget(0, 1, hpLegend);
}
}

23
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/layercollection/LayerCollectionPanel.ui.xml Normal file
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@ -0,0 +1,23 @@
<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui"
xmlns:b="urn:import:com.github.gwtbootstrap.client.ui">
<ui:style>
.important {
font-weight: bold;
}
</ui:style>
<g:HTMLPanel>
<g:HTMLPanel ui:field="basePanel">
</g:HTMLPanel>
<g:HTMLPanel ui:field="stylePanel" visible="false" addStyleNames="layer-style-panel">
Layer Style
<g:HorizontalPanel>
<g:HTMLPanel ui:field="styleListPanel"></g:HTMLPanel>
<b:Button icon="BAR_CHART" ui:field="buttonLegend" title="Show the Legend"></b:Button>
</g:HorizontalPanel>
<g:ScrollPanel ui:field="legendPanel"></g:ScrollPanel>
</g:HTMLPanel>
</g:HTMLPanel>
</ui:UiBinder>

4
src/main/java/org/gcube/portlets/user/geoportaldataviewer/server/Geoportal_JSON_Mapper.java
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@ -554,10 +554,10 @@ public class Geoportal_JSON_Mapper {
}
//Setting only if one element exists
if(filesetImages.getListPayload().size()>0) {
if(filesetImages.getListPayload()!=null && filesetImages.getListPayload().size()>0) {
listImages.add(filesetImages);
}
if(filesetFiles.getListPayload().size()>0) {
if(filesetFiles.getListPayload()!=null && filesetFiles.getListPayload().size()>0) {
listFiles.add(filesetFiles);
}

11
src/main/webapp/GeoportalDataViewer.css
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@ -769,3 +769,14 @@ RESPONSIVE
width: 100px;
}
}
/* OPEN COLLECTION UI */
.layer-style-panel {
margin-left: 25px;
font-size: 13px;
color: gray;
}
.layer-style-panel-table-legend table td {
padding-left: 5px;
}