Hello,
I'm currently working on web application using GWT+smartGWT for my master diploma. But I encountered obstacle, that I have trouble overcoming. The situation is like following:
I have an Entry Point, where I have a skeleton for layout of my app(code below):
In my class MapView I want to add to smartGWT VLayout MapWidget from GWT-OpenLayers. Code extract for that is enclosed below:
But when I want to enter page with MapView I get following error on console in Eclipse:
Uncaught JavaScript exception [Uncaught java.lang.AssertionError: A widget that has an existing parent widget may not be added to the detach list] in http://127.0.0.1:8888/webPanel.html?gwt.codesvr=127.0.0.1:9997, line 5
I tried also this combinations, but with no success:
It looks like I'm having trouble with adding GWT widget into smartGWT component. Any suggestions how can I fix this?
I don't know how it happened, but before I could run this code without any errors. Scarcely this started showing up.
Information:
SmartClient Version: v9.0_2013-07-03/LGPL Development Only (built 2013-07-03)
Browser: Google Chrome 35.0.1916.153 (Official Build 274914)
Thanks in advance for any hints/remarks how I can fix this error.
Regards,
Jakub
I'm currently working on web application using GWT+smartGWT for my master diploma. But I encountered obstacle, that I have trouble overcoming. The situation is like following:
I have an Entry Point, where I have a skeleton for layout of my app(code below):
Code:
public class webPanel implements EntryPoint {
private static final int NORTH_HEIGHT = 99;
private VLayout mainLayout;
private HLayout northLayout;
public static HLayout southLayout;
private VLayout eastLayout;
public static VLayout westLayout;
private final Messages messages = GWT.create(Messages.class);
public void onModuleLoad() {
mainLayout = new VLayout();
mainLayout.setWidth100();
mainLayout.setHeight100();
northLayout = new HLayout();
northLayout.setHeight(NORTH_HEIGHT);
VLayout vLayout = new VLayout();
vLayout.addMember(new MasterHead());
northLayout.addMember(vLayout);
westLayout = new WelcomeView();
eastLayout = new MapView();
southLayout = new HLayout();
southLayout.setMembers(westLayout, eastLayout);
mainLayout.addMember(northLayout);
mainLayout.addMember(southLayout);
RootLayoutPanel.get().add(mainLayout);
}Code:
public class MapView extends VLayout {
private MapWidget mapWidget = null;
private static final Projection DEFAULT_PROJECTION = new Projection(
"EPSG:4326");
public MapView() {
super();
this.setWidth("*");
MapOptions defaultMapOptions = new MapOptions();
mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
OSM osmMapnik = OSM.Mapnik("Mapnik");
OSM osmCycle = OSM.CycleMap("CycleMap");
osmMapnik.setIsBaseLayer(true);
osmCycle.setIsBaseLayer(true);
mapWidget.getMap().addLayer(osmMapnik);
mapWidget.getMap().addLayer(osmCycle);
LonLat lonLat = new LonLat(6.95, 50.94);
lonLat.transform("EPSG:4326", mapWidget.getMap().getProjection()); mapWidget.getMap().setCenter(lonLat, 12);
//here is the line causing error
this.addMember(mapWidget);
}
}Uncaught JavaScript exception [Uncaught java.lang.AssertionError: A widget that has an existing parent widget may not be added to the detach list] in http://127.0.0.1:8888/webPanel.html?gwt.codesvr=127.0.0.1:9997, line 5
I tried also this combinations, but with no success:
Code:
Canvas c2 = new Canvas();
c2.addChild(mapWidget);
this.addChild(c2);*/
//or this
this.draw();I don't know how it happened, but before I could run this code without any errors. Scarcely this started showing up.
Information:
SmartClient Version: v9.0_2013-07-03/LGPL Development Only (built 2013-07-03)
Browser: Google Chrome 35.0.1916.153 (Official Build 274914)
Thanks in advance for any hints/remarks how I can fix this error.
Regards,
Jakub