Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2013-2014 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.features.topology.app.internal.gwt.client; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Element; import com.google.gwt.user.client.ui.Widget; import com.vaadin.client.TooltipInfo; import com.vaadin.client.communication.RpcProxy; import com.vaadin.client.communication.StateChangeEvent; import com.vaadin.client.ui.AbstractComponentConnector; import com.vaadin.shared.ui.Connect; import org.opennms.features.topology.app.internal.gwt.client.d3.D3; @Connect(org.opennms.features.topology.app.internal.TopologyComponent.class) public class TopologyComponentConnector extends AbstractComponentConnector { TopologyComponentServerRpc m_rpc = RpcProxy.create(TopologyComponentServerRpc.class, this); @Override public VTopologyComponent getWidget() { return (VTopologyComponent) super.getWidget(); } @Override protected Widget createWidget() { VTopologyComponent widget = GWT.create(VTopologyComponent.class); widget.setComponentServerRpc(m_rpc); return widget; } @Override public TopologyComponentState getState() { return (TopologyComponentState) super.getState(); } @Override public void onStateChanged(StateChangeEvent event) { super.onStateChanged(event); if (event.hasPropertyChanged("SVGDefFiles")) { getWidget().injectSVGDefs(getConnection(), getState().getSVGDefFiles()); } if (event.hasPropertyChanged("activeTool")) { getWidget().setActiveTool(getState().getActiveTool()); } if (event.hasPropertyChanged("physicalWidth")) { getWidget().setPhysicalWidth(getState().getPhysicalWidth()); } if (event.hasPropertyChanged("physicalHeight")) { getWidget().setPhysicalHeight(getState().getPhysicalHeight()); } getWidget().updateGraph(getConnection(), getState()); } @Override public TooltipInfo getTooltipInfo(Element element) { TooltipInfo tooltipInfo = null; String className = getElementClassName(element); if (className == null) { // Don't try and find a tooltip } else if (className.equals("svgIconOverlay")) { GWTVertex vertex = getVertexForSelection(D3.d3().select(element)); tooltipInfo = new TooltipInfo(vertex.getTooltipText()); } else if (className.contains("edge")) { GWTEdge edge = getEdgeForSelection(D3.d3().select(element)); tooltipInfo = new TooltipInfo(edge.getTooltipText()); } return tooltipInfo; } private final native GWTEdge getEdgeForSelection(D3 selection) /*-{ return selection.data()[0]; }-*/; private final native String getElementClassName(Element element)/*-{ return element.className.baseVal; }-*/; private final native GWTVertex getVertexForSelection(D3 selection) /*-{ return selection.data()[0]; }-*/; @Override public boolean hasTooltip() { return true; } }