Java tutorial
/******************************************************************************* * Copyright (c) 2007, 2008 Borland Software Corporation 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: * Borland Software Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.m2m.internal.qvt.oml.runtime.ui.trace; import java.util.ArrayList; import java.util.List; import org.eclipse.emf.common.util.EList; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.util.EcoreUtil; import org.eclipse.emf.edit.provider.ComposedAdapterFactory; import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.DecorationOverlayIcon; import org.eclipse.jface.viewers.IDecoration; import org.eclipse.m2m.internal.qvt.oml.common.ui.CommonPluginImages; import org.eclipse.m2m.internal.qvt.oml.emf.util.ui.provider.EMFLabelProvider; import org.eclipse.m2m.internal.qvt.oml.runtime.ui.trace.presentation.Node; import org.eclipse.m2m.internal.qvt.oml.trace.EMappingOperation; import org.eclipse.m2m.internal.qvt.oml.trace.ETuplePartValue; import org.eclipse.m2m.internal.qvt.oml.trace.EValue; import org.eclipse.m2m.internal.qvt.oml.trace.TracePackage; import org.eclipse.m2m.internal.qvt.oml.trace.TraceRecord; import org.eclipse.m2m.internal.qvt.oml.trace.VarParameterValue; import org.eclipse.swt.graphics.Image; /** * @author Aleksandr Igdalov */ public class TraceViewLabelProvider extends EMFLabelProvider { private final AdapterFactoryLabelProvider myLabelProvider; private boolean isQualified; public TraceViewLabelProvider() { super(); ComposedAdapterFactory composedAdapterFactory = new ComposedAdapterFactory( ComposedAdapterFactory.Descriptor.Registry.INSTANCE); myLabelProvider = new AdapterFactoryLabelProvider(composedAdapterFactory); } @Override public String getText(Object element) { if (element instanceof TraceRecord) { TraceRecord traceRecord = (TraceRecord) element; StringBuffer result = new StringBuffer(); EMappingOperation mappingOperation = traceRecord.getMappingOperation(); if (isQualified) { if (mappingOperation.getPackage().length() != 0) { result.append(mappingOperation.getPackage() + '.'); } result.append(mappingOperation.getModule() + '.'); } result.append(mappingOperation.getName()); result.append(" ("); //$NON-NLS-1$ if (traceRecord.getContext().getContext() != null) { result.append("SELF: " + getValue(traceRecord.getContext().getContext().getValue())); //$NON-NLS-1$ } appendValueList(traceRecord.getParameters().getParameters(), "PARAMS", result); //$NON-NLS-1$ appendValueList(traceRecord.getResult().getResult(), "RESULT", result); //$NON-NLS-1$ result.append(")"); //$NON-NLS-1$ return result.toString(); } else if (element instanceof VarParameterValue) { VarParameterValue varParameterValue = (VarParameterValue) element; StringBuffer stringBuffer = new StringBuffer(); stringBuffer.append(varParameterValue.getKind().getLiteral().toLowerCase() + ' '); stringBuffer.append(varParameterValue.getName() + " : "); //$NON-NLS-1$ stringBuffer.append(varParameterValue.getType() + " = "); //$NON-NLS-1$ stringBuffer.append(getValue(varParameterValue.getValue())); return stringBuffer.toString(); } else if (element instanceof EValue) { return getValue((EValue) element); } else if (element instanceof Node) { Object object = ((Node) element).getObject(); String text = myLabelProvider.getText(object); if (isContainedByTrace(object)) { text = "[unbound] " + text; //$NON-NLS-1$ } return text; } throw new RuntimeException("Unknown input:" + element.getClass()); //$NON-NLS-1$ } @Override public Image getImage(Object element) { if (element instanceof TraceRecord) { Image img = myLabelProvider.getImage(element); Object[] elements = new TraceViewContentProvider().getElements((TraceRecord) element); for (Object obj : elements) { Image newImage = getVarParameterImage(img, (VarParameterValue) obj); if (newImage != img) { return newImage; } } return img; } else if (element instanceof VarParameterValue) { return getVarParameterImage(myLabelProvider.getImage(element), (VarParameterValue) element); } else if (element instanceof Node) { Object object = ((Node) element).getObject(); Image img = myLabelProvider.getImage(object); if (isContainedByTrace(object)) { return getDecoratedImage(img, CommonPluginImages.WARNING_CO); } return img; } return myLabelProvider.getImage(element); } private Image getVarParameterImage(Image baseImage, VarParameterValue varParamV) { if (varParamV.getValue() != null && varParamV.getValue().getModelElement() != null) { EObject modelElement = varParamV.getValue().getModelElement(); if (isContainedByTrace(modelElement)) { return getDecoratedImage(baseImage, CommonPluginImages.WARNING_CO); } } return baseImage; } public void setShowQualifiedNames(boolean isOn) { isQualified = isOn; } @Override public void dispose() { for (Image img : myImageCache) { img.dispose(); } super.dispose(); } private void appendValueList(EList<VarParameterValue> valueList, String prefix, StringBuffer result) { int size = valueList.size(); if (size > 0) { if (result.charAt(result.length() - 1) != '(') { result.append(", "); //$NON-NLS-1$ } result.append(prefix + ": "); //$NON-NLS-1$ for (int i = 0, n = size - 1; i < n; i++) { result.append(getValue(valueList.get(i).getValue()) + ", "); //$NON-NLS-1$ } result.append(getValue(valueList.get(size - 1).getValue())); } } private static String getValue(EValue eValue) { if (eValue instanceof ETuplePartValue) { ETuplePartValue tuplePartValue = (ETuplePartValue) eValue; return '[' + tuplePartValue.getName() + "]: " + getValue(tuplePartValue.getValue()); //$NON-NLS-1$ } else if (eValue.getModelElement() != null) { return eValue.getModelElement().eClass().getName(); } else if (eValue.getPrimitiveValue() != null) { return eValue.getPrimitiveValue(); } else if (eValue.getIntermediateElement() != null) { return eValue.getIntermediateElement().eClass().getName(); } else if (!eValue.getCollection().isEmpty()) { return eValue.getCollectionType() + '[' + eValue.getCollection().size() + ']'; } else { return "null"; //$NON-NLS-1$ } } private boolean isContainedByTrace(Object element) { if (false == element instanceof EObject) { return false; } return EcoreUtil.getRootContainer(((EObject) element)).eClass().eContainer() == TracePackage.eINSTANCE; } private Image getDecoratedImage(Image baseImage, String decoratorKey) { ImageDescriptor decoratorId = CommonPluginImages.getInstance().getImageDescriptor(decoratorKey); DecorationOverlayIcon decoratedIconId = new DecorationOverlayIcon(baseImage, decoratorId, IDecoration.TOP_LEFT); Image decoratedImage = decoratedIconId.createImage(); myImageCache.add(decoratedImage); return decoratedImage; } private final List<Image> myImageCache = new ArrayList<Image>(2); }