Java tutorial
/** * NetXMS - open source network management system * Copyright (C) 2003-2015 Victor Kirhenshtein * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ package org.netxms.ui.eclipse.dashboard.widgets; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.swt.SWT; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Label; import org.eclipse.ui.IViewPart; import org.netxms.client.dashboards.DashboardElement; import org.netxms.ui.eclipse.dashboard.widgets.internal.TableValueConfig; import org.netxms.ui.eclipse.perfview.widgets.TableValue; import org.netxms.ui.eclipse.tools.ViewRefreshController; /** * "Table value" element for dashboard */ public class TableValueElement extends ElementWidget { private TableValueConfig config; private TableValue viewer; /** * @param parent * @param element * @param viewPart */ public TableValueElement(DashboardControl parent, DashboardElement element, IViewPart viewPart) { super(parent, element, viewPart); try { config = TableValueConfig.createFromXml(element.getData()); } catch (Exception e) { e.printStackTrace(); config = new TableValueConfig(); } if (config.getTitle().trim().isEmpty()) { setLayout(new FillLayout()); viewer = new TableValue(this, SWT.NONE, viewPart, parent.getDashboardObject().getGuid().toString()); } else { GridLayout layout = new GridLayout(); layout.marginWidth = 0; layout.marginHeight = 0; setLayout(layout); Label title = new Label(this, SWT.CENTER); title.setText(config.getTitle().trim()); title.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); title.setFont(JFaceResources.getBannerFont()); viewer = new TableValue(this, SWT.NONE, viewPart, parent.getDashboardObject().getGuid().toString()); viewer.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); } viewer.setObject(config.getObjectId(), config.getDciId()); viewer.refresh(null); final ViewRefreshController refreshController = new ViewRefreshController(viewPart, config.getRefreshRate(), new Runnable() { @Override public void run() { if (TableValueElement.this.isDisposed()) return; viewer.refresh(null); } }); addDisposeListener(new DisposeListener() { @Override public void widgetDisposed(DisposeEvent e) { refreshController.dispose(); } }); } }