Java tutorial
/*=============================================================================# # Copyright (c) 2012-2015 Stephan Wahlbrink (WalWare.de) and others. # All rights reserved. This program and the accompanying materials # are made available under the terms of the Eclipse Public License v1.0 # which accompanies this distribution, and is available at # http://www.eclipse.org/legal/epl-v10.html # # Contributors: # Stephan Wahlbrink - initial API and implementation #=============================================================================*/ package de.walware.statet.r.internal.ui.pkgmanager; import org.eclipse.core.runtime.IStatus; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.CellLabelProvider; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.swt.graphics.Image; public class StatusLabelProvider extends CellLabelProvider { public StatusLabelProvider() { } @Override public void update(final ViewerCell cell) { final Object element = cell.getElement(); if (element instanceof IStatus) { final IStatus status = (IStatus) element; cell.setImage(getImage(status)); cell.setText(status.getMessage()); } else { throw new IllegalArgumentException(); } } public Image getImage(final IStatus status) { switch (status.getSeverity()) { case IStatus.ERROR: return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_ERROR); case IStatus.WARNING: return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_WARNING); default: return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_INFO); } } @Override public Image getToolTipImage(final Object element) { if (element instanceof IStatus) { return getImage((IStatus) element); } return null; } @Override public String getToolTipText(final Object element) { if (element instanceof IStatus) { return ((IStatus) element).getMessage(); } return null; } }