org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/BindingLabelProvider.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM 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:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.ui.viewsupport;

 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Point;

 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.viewers.LabelProvider;

 import org.eclipse.jdt.core.dom.IBinding;
 import org.eclipse.jdt.core.dom.IMethodBinding;
 import org.eclipse.jdt.core.dom.IPackageBinding;
 import org.eclipse.jdt.core.dom.ITypeBinding;
 import org.eclipse.jdt.core.dom.IVariableBinding;
 import org.eclipse.jdt.core.dom.Modifier;

 import org.eclipse.jdt.internal.corext.util.Messages;

 import org.eclipse.jdt.ui.JavaElementImageDescriptor;
 import org.eclipse.jdt.ui.JavaElementLabels;

 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.JavaPluginImages;
 import org.eclipse.jdt.internal.ui.JavaUIMessages;

 /**
  * Label provider to render bindings in viewers.
  *
  * @since 3.1
  */
 public class BindingLabelProvider extends LabelProvider {


 	private static int getAdornmentFlags(IBinding binding, int flags) {
 		int adornments= 0;
 		if (binding instanceof IMethodBinding && ((IMethodBinding) binding).isConstructor())
 			adornments|= JavaElementImageDescriptor.CONSTRUCTOR;
 		final int modifiers= binding.getModifiers();
 		if (Modifier.isAbstract(modifiers))
 			adornments|= JavaElementImageDescriptor.ABSTRACT;
 		if (Modifier.isFinal(modifiers))
 			adornments|= JavaElementImageDescriptor.FINAL;
 		if (Modifier.isSynchronized(modifiers))
 			adornments|= JavaElementImageDescriptor.SYNCHRONIZED;
 		if (Modifier.isStatic(modifiers))
 			adornments|= JavaElementImageDescriptor.STATIC;
 		if (binding.isDeprecated())
 			adornments|= JavaElementImageDescriptor.DEPRECATED;
 		return adornments;
 	}

 	private static ImageDescriptor getBaseImageDescriptor(IBinding binding, int flags) {
 		if (binding instanceof ITypeBinding) {
 			ITypeBinding typeBinding= (ITypeBinding) binding;
 			if (typeBinding.isArray()) {
 				typeBinding= typeBinding.getElementType();
 			}
 			if (typeBinding.isCapture()) {
 				typeBinding.getWildcard();
 			}
 			return getTypeImageDescriptor(typeBinding.getDeclaringClass() != null, typeBinding, flags);
 		} else if (binding instanceof IMethodBinding) {
 			ITypeBinding type= ((IMethodBinding) binding).getDeclaringClass();
 			int modifiers= binding.getModifiers();
 			if (type.isEnum() && (!Modifier.isPublic(modifiers) && !Modifier.isProtected(modifiers) && !Modifier.isPrivate(modifiers)) && ((IMethodBinding) binding).isConstructor())
 				return JavaPluginImages.DESC_MISC_PRIVATE;
 			return getMethodImageDescriptor(binding.getModifiers());
 		} else if (binding instanceof IVariableBinding)
 			return getFieldImageDescriptor((IVariableBinding) binding);
 		return JavaPluginImages.DESC_OBJS_UNKNOWN;
 	}

 	private static ImageDescriptor getClassImageDescriptor(int modifiers) {
 		if (Modifier.isPublic(modifiers) || Modifier.isProtected(modifiers) || Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_OBJS_CLASS;
 		else
 			return JavaPluginImages.DESC_OBJS_CLASS_DEFAULT;
 	}

 	private static ImageDescriptor getFieldImageDescriptor(IVariableBinding binding) {
 		final int modifiers= binding.getModifiers();
 		if (Modifier.isPublic(modifiers) || binding.isEnumConstant())
 			return JavaPluginImages.DESC_FIELD_PUBLIC;
 		if (Modifier.isProtected(modifiers))
 			return JavaPluginImages.DESC_FIELD_PROTECTED;
 		if (Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_FIELD_PRIVATE;

 		return JavaPluginImages.DESC_FIELD_DEFAULT;
 	}

 	private static void getFieldLabel(IVariableBinding binding, long flags, StringBuffer buffer) {
 		if (((flags & JavaElementLabels.F_PRE_TYPE_SIGNATURE) != 0) && !binding.isEnumConstant()) {
 			getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 			buffer.append(' ');
 		}
 		// qualification

 		if ((flags & JavaElementLabels.F_FULLY_QUALIFIED) != 0) {
 			ITypeBinding declaringClass= binding.getDeclaringClass();
 			if (declaringClass != null) { // test for array.length
 				getTypeLabel(declaringClass, JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 				buffer.append('.');
 			}
 		}
 		buffer.append(binding.getName());
 		if (((flags & JavaElementLabels.F_APP_TYPE_SIGNATURE) != 0) && !binding.isEnumConstant()) {
 			buffer.append(JavaElementLabels.DECL_STRING);
 			getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 		}
 		// post qualification
 		if ((flags & JavaElementLabels.F_POST_QUALIFIED) != 0) {
 			ITypeBinding declaringClass= binding.getDeclaringClass();
 			if (declaringClass != null) { // test for array.length
 				buffer.append(JavaElementLabels.CONCAT_STRING);
 				getTypeLabel(declaringClass, JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 			}
 		}
 	}

 	private static void getLocalVariableLabel(IVariableBinding binding, long flags, StringBuffer buffer) {
 		if (((flags & JavaElementLabels.F_PRE_TYPE_SIGNATURE) != 0)) {
 			getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 			buffer.append(' ');
 		}
 		if (((flags & JavaElementLabels.F_FULLY_QUALIFIED) != 0)) {
 			IMethodBinding declaringMethod= binding.getDeclaringMethod();
 			if (declaringMethod != null) {
 				getMethodLabel(declaringMethod, flags, buffer);
 				buffer.append('.');
 			}
 		}
 		buffer.append(binding.getName());
 		if (((flags & JavaElementLabels.F_APP_TYPE_SIGNATURE) != 0)) {
 			buffer.append(JavaElementLabels.DECL_STRING);
 			getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 		}
 	}

 	private static ImageDescriptor getInnerClassImageDescriptor(int modifiers) {
 		if (Modifier.isPublic(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_CLASS_PUBLIC;
 		else if (Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_CLASS_PRIVATE;
 		else if (Modifier.isProtected(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_CLASS_PROTECTED;
 		else
 			return JavaPluginImages.DESC_OBJS_INNER_CLASS_DEFAULT;
 	}

 	private static ImageDescriptor getInnerInterfaceImageDescriptor(int modifiers) {
 		if (Modifier.isPublic(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PUBLIC;
 		else if (Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PRIVATE;
 		else if (Modifier.isProtected(modifiers))
 			return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PROTECTED;
 		else
 			return JavaPluginImages.DESC_OBJS_INTERFACE_DEFAULT;
 	}

 	private static ImageDescriptor getInterfaceImageDescriptor(int modifiers) {
 		if (Modifier.isPublic(modifiers) || Modifier.isProtected(modifiers) || Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_OBJS_INTERFACE;
 		else
 			return JavaPluginImages.DESC_OBJS_INTERFACE_DEFAULT;
 	}

 	private static ImageDescriptor getMethodImageDescriptor(int modifiers) {
 		if (Modifier.isPublic(modifiers))
 			return JavaPluginImages.DESC_MISC_PUBLIC;
 		if (Modifier.isProtected(modifiers))
 			return JavaPluginImages.DESC_MISC_PROTECTED;
 		if (Modifier.isPrivate(modifiers))
 			return JavaPluginImages.DESC_MISC_PRIVATE;

 		return JavaPluginImages.DESC_MISC_DEFAULT;
 	}

 	private static void appendDimensions(int dim, StringBuffer buffer) {
 		for (int i=0 ; i < dim; i++) {
 			buffer.append('[').append(']');
 		}
 	}


 	private static void getMethodLabel(IMethodBinding binding, long flags, StringBuffer buffer) {
 		// return type
 		if ((flags & JavaElementLabels.M_PRE_TYPE_PARAMETERS) != 0) {
 			if (binding.isGenericMethod()) {
 				ITypeBinding[] typeParameters= binding.getTypeParameters();
 				if (typeParameters.length > 0) {
 					getTypeParametersLabel(typeParameters, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 					buffer.append(' ');
 				}
 			}
 		}
 		// return type
 		if (((flags & JavaElementLabels.M_PRE_RETURNTYPE) != 0) && !binding.isConstructor()) {
 			getTypeLabel(binding.getReturnType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 			buffer.append(' ');
 		}
 		// qualification
 		if ((flags & JavaElementLabels.M_FULLY_QUALIFIED) != 0) {
 			getTypeLabel(binding.getDeclaringClass(), JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 			buffer.append('.');
 		}
 		buffer.append(binding.getName());
 		if ((flags & JavaElementLabels.M_APP_TYPE_PARAMETERS) != 0) {
 			if (binding.isParameterizedMethod()) {
 				ITypeBinding[] typeArguments= binding.getTypeArguments();
 				if (typeArguments.length > 0) {
 					buffer.append(' ');
 					getTypeArgumentsLabel(typeArguments, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 				}
 			}
 		}


 		// parameters
 		buffer.append('(');
 		if ((flags & JavaElementLabels.M_PARAMETER_TYPES | JavaElementLabels.M_PARAMETER_NAMES) != 0) {
 			ITypeBinding[] parameters= ((flags & JavaElementLabels.M_PARAMETER_TYPES) != 0) ? binding.getParameterTypes() : null;
 			if (parameters != null) {
 				for (int index= 0; index < parameters.length; index++) {
 					if (index > 0) {
 						buffer.append(JavaElementLabels.COMMA_STRING);
 					}
 					ITypeBinding paramType= parameters[index];
 					if (binding.isVarargs() && (index == parameters.length - 1)) {
 						getTypeLabel(paramType.getElementType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 						appendDimensions(paramType.getDimensions() - 1, buffer);
 						buffer.append(JavaElementLabels.ELLIPSIS_STRING);
 					} else {
 						getTypeLabel(paramType, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 					}
 				}
 			}
 		} else {
 			if (binding.getParameterTypes().length > 0) {
 				buffer.append(JavaElementLabels.ELLIPSIS_STRING);
 			}
 		}
 		buffer.append(')');

 		if ((flags & JavaElementLabels.M_EXCEPTIONS) != 0) {
 			ITypeBinding[] exceptions= binding.getExceptionTypes();
 			if (exceptions.length > 0) {
 				buffer.append(" throws "); //$NON-NLS-1$
 				for (int index= 0; index < exceptions.length; index++) {
 					if (index > 0) {
 						buffer.append(JavaElementLabels.COMMA_STRING);
 					}
 					getTypeLabel(exceptions[index], (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 				}
 			}
 		}
 		if ((flags & JavaElementLabels.M_APP_TYPE_PARAMETERS) != 0) {
 			if (binding.isGenericMethod()) {
 				ITypeBinding[] typeParameters= binding.getTypeParameters();
 				if (typeParameters.length > 0) {
 					buffer.append(' ');
 					getTypeParametersLabel(typeParameters, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 				}
 			}
 		}
 		if (((flags & JavaElementLabels.M_APP_RETURNTYPE) != 0) && !binding.isConstructor()) {
 			buffer.append(JavaElementLabels.DECL_STRING);
 			getTypeLabel(binding.getReturnType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
 		}
 		// post qualification
 		if ((flags & JavaElementLabels.M_POST_QUALIFIED) != 0) {
 			buffer.append(JavaElementLabels.CONCAT_STRING);
 			getTypeLabel(binding.getDeclaringClass(), JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 		}
 	}

 	private static ImageDescriptor getTypeImageDescriptor(boolean inner, ITypeBinding binding, int flags) {
 		if (binding.isEnum())
 			return JavaPluginImages.DESC_OBJS_ENUM;
 		else if (binding.isAnnotation())
 			return JavaPluginImages.DESC_OBJS_ANNOTATION;
 		else if (binding.isInterface()) {
 			if ((flags & JavaElementImageProvider.LIGHT_TYPE_ICONS) != 0)
 				return JavaPluginImages.DESC_OBJS_INTERFACEALT;
 			if (inner)
 				return getInnerInterfaceImageDescriptor(binding.getModifiers());
 			return getInterfaceImageDescriptor(binding.getModifiers());
 		} else if (binding.isClass()) {
 			if ((flags & JavaElementImageProvider.LIGHT_TYPE_ICONS) != 0)
 				return JavaPluginImages.DESC_OBJS_CLASSALT;
 			if (inner)
 				return getInnerClassImageDescriptor(binding.getModifiers());
 			return getClassImageDescriptor(binding.getModifiers());
 		} else if (binding.isTypeVariable()) {
 			return JavaPluginImages.DESC_OBJS_TYPEVARIABLE;
 		}
 		// primitive type, wildcard
 		return null;
 	}


 	private static void getTypeLabel(ITypeBinding binding, long flags, StringBuffer buffer) {
 		if ((flags & JavaElementLabels.T_FULLY_QUALIFIED) != 0) {
 			final IPackageBinding pack= binding.getPackage();
 			if (pack != null && !pack.isUnnamed()) {
 				buffer.append(pack.getName());
 				buffer.append('.');
 			}
 		}
 		if ((flags & (JavaElementLabels.T_FULLY_QUALIFIED | JavaElementLabels.T_CONTAINER_QUALIFIED)) != 0) {
 			final ITypeBinding declaring= binding.getDeclaringClass();
 			if (declaring != null) {
 				getTypeLabel(declaring, JavaElementLabels.T_CONTAINER_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 				buffer.append('.');
 			}
 			final IMethodBinding declaringMethod= binding.getDeclaringMethod();
 			if (declaringMethod != null) {
 				getMethodLabel(declaringMethod, 0, buffer);
 				buffer.append('.');
 			}
 		}

 		if (binding.isCapture()) {
 			getTypeLabel(binding.getWildcard(), flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
 		} else if (binding.isWildcardType()) {
 			buffer.append('?');
 			ITypeBinding bound= binding.getBound();
 			if (bound != null) {
 				if (binding.isUpperbound()) {
 					buffer.append(" extends "); //$NON-NLS-1$
 				} else {
 					buffer.append(" super "); //$NON-NLS-1$
 				}
 				getTypeLabel(bound, flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
 			}
 		} else if (binding.isArray()) {
 			getTypeLabel(binding.getElementType(), flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
 			appendDimensions(binding.getDimensions(), buffer);
 		} else { // type variables, primitive, reftype
 			String name= binding.getTypeDeclaration().getName();
 			if (name.length() == 0) {
 				if (binding.isEnum()) {
 					buffer.append('{' + JavaElementLabels.ELLIPSIS_STRING + '}');
 				} else if (binding.isAnonymous()) {
 					ITypeBinding[] superInterfaces= binding.getInterfaces();
 					ITypeBinding baseType;
 					if (superInterfaces.length > 0) {
 						baseType= superInterfaces[0];
 					} else {
 						baseType= binding.getSuperclass();
 					}
 					if (baseType != null) {
 						StringBuffer anonymBaseType= new StringBuffer();
 						getTypeLabel(baseType, flags & JavaElementLabels.T_TYPE_PARAMETERS, anonymBaseType);
 						buffer.append(Messages.format(JavaUIMessages.JavaElementLabels_anonym_type, anonymBaseType.toString()));
 					} else {
 						buffer.append(JavaUIMessages.JavaElementLabels_anonym);
 					}
 				} else {
 					buffer.append("UNKNOWN"); //$NON-NLS-1$
 				}
 			} else {
 				buffer.append(name);
 			}

 			if ((flags & JavaElementLabels.T_TYPE_PARAMETERS) != 0) {
 				if (binding.isGenericType()) {
 					getTypeParametersLabel(binding.getTypeParameters(), flags, buffer);
 				} else if (binding.isParameterizedType()) {
 					getTypeArgumentsLabel(binding.getTypeArguments(), flags, buffer);
 				}
 			}
 		}


 		if ((flags & JavaElementLabels.T_POST_QUALIFIED) != 0) {
 			final IMethodBinding declaringMethod= binding.getDeclaringMethod();
 			final ITypeBinding declaringType= binding.getDeclaringClass();
 			if (declaringMethod != null) {
 				buffer.append(JavaElementLabels.CONCAT_STRING);
 				getMethodLabel(declaringMethod, JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 			} else if (declaringType != null) {
 				buffer.append(JavaElementLabels.CONCAT_STRING);
 				getTypeLabel(declaringType, JavaElementLabels.T_FULLY_QUALIFIED | (flags & JavaElementLabels.P_COMPRESSED), buffer);
 			} else {
 				final IPackageBinding pack= binding.getPackage();
 				if (pack != null && !pack.isUnnamed()) {
 					buffer.append(JavaElementLabels.CONCAT_STRING);
 					buffer.append(pack.getName());
 				}
 			}
 		}
 	}

 	private static void getTypeArgumentsLabel(ITypeBinding[] typeArgs, long flags, StringBuffer buf) {
 		if (typeArgs.length > 0) {
 			buf.append('<');
 			for (int i = 0; i < typeArgs.length; i++) {
 				if (i > 0) {
 					buf.append(JavaElementLabels.COMMA_STRING);
 				}
 				getTypeLabel(typeArgs[i], flags & JavaElementLabels.T_TYPE_PARAMETERS, buf);
 			}
 			buf.append('>');
 		}
 	}


 	private static void getTypeParametersLabel(ITypeBinding[] typeParameters, long flags, StringBuffer buffer) {
 		if (typeParameters.length > 0) {
 			buffer.append('<');
 			for (int index= 0; index < typeParameters.length; index++) {
 				if (index > 0) {
 					buffer.append(JavaElementLabels.COMMA_STRING);
 				}
 				buffer.append(typeParameters[index].getName());
 			}
 			buffer.append('>');
 		}
 	}

 	/**
 	 * Returns the label for a Java element with the flags as defined by {@link JavaElementLabels}.
 	 * @param binding The binding to render.
 	 * @param flags The text flags as defined in {@link JavaElementLabels}
 	 * @return the label of the binding
 	 */
 	public static String getBindingLabel(IBinding binding, long flags) {
 		StringBuffer buffer= new StringBuffer(60);
 		if (binding instanceof ITypeBinding) {
 			getTypeLabel(((ITypeBinding) binding), flags, buffer);
 		} else if (binding instanceof IMethodBinding) {
 			getMethodLabel(((IMethodBinding) binding), flags, buffer);
 		} else if (binding instanceof IVariableBinding) {
 			final IVariableBinding variable= (IVariableBinding) binding;
 			if (variable.isField())
 				getFieldLabel(variable, flags, buffer);
 			else
 				getLocalVariableLabel(variable, flags, buffer);
 		}
 		return buffer.toString();
 	}

 	/**
 	 * Returns the image descriptor for a binding with the flags as defined by {@link JavaElementImageProvider}.
 	 * @param binding The binding to get the image for.
 	 * @param imageFlags The image flags as defined in {@link JavaElementImageProvider}.
 	 * @return the image of the binding or null if there is no image
 	 */
 	public static ImageDescriptor getBindingImageDescriptor(IBinding binding, int imageFlags) {
 		ImageDescriptor baseImage= getBaseImageDescriptor(binding, imageFlags);
 		if (baseImage != null) {
 			int adornmentFlags= getAdornmentFlags(binding, imageFlags);
 			Point size= ((imageFlags & JavaElementImageProvider.SMALL_ICONS) != 0) ? JavaElementImageProvider.SMALL_SIZE : JavaElementImageProvider.BIG_SIZE;
 			return new JavaElementImageDescriptor(baseImage, adornmentFlags, size);
 		}
 		return null;
 	}


 	public static final long DEFAULT_TEXTFLAGS= JavaElementLabels.ALL_DEFAULT;
 	public static final int DEFAULT_IMAGEFLAGS= JavaElementImageProvider.OVERLAY_ICONS;


 	final private long fTextFlags;
 	final private int fImageFlags;

 	private ImageDescriptorRegistry fRegistry;

 	/**
 	 * Creates a new binding label provider with default text and image flags
 	 */
 	public BindingLabelProvider() {
 		this(DEFAULT_TEXTFLAGS, DEFAULT_IMAGEFLAGS);
 	}

 	/**
 	 * @param textFlags Flags defined in {@link JavaElementLabels}.
 	 * @param imageFlags Flags defined in {@link JavaElementImageProvider}.
 	 */
 	public BindingLabelProvider(final long textFlags, final int imageFlags) {
 		fImageFlags= imageFlags;
 		fTextFlags= textFlags;
 		fRegistry= null;
 	}

 	/*
 	 * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
 	 */
 	public Image getImage(Object element) {
 		if (element instanceof IBinding) {
 			ImageDescriptor baseImage= getBindingImageDescriptor((IBinding) element, fImageFlags);
 			if (baseImage != null) {
 				return getRegistry().get(baseImage);
 			}
 		}
 		return super.getImage(element);
 	}

 	private ImageDescriptorRegistry getRegistry() {
 		if (fRegistry == null)
 			fRegistry= JavaPlugin.getImageDescriptorRegistry();
 		return fRegistry;
 	}

 	/*
 	 * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
 	 */
 	public String getText(Object element) {
 		if (element instanceof IBinding) {
 			return getBindingLabel((IBinding) element, fTextFlags);
 		}
 		return super.getText(element);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2006 IBM 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:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.ui.viewsupport;

	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.graphics.Point;

	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.viewers.LabelProvider;

	import org.eclipse.jdt.core.dom.IBinding;
	import org.eclipse.jdt.core.dom.IMethodBinding;
	import org.eclipse.jdt.core.dom.IPackageBinding;
	import org.eclipse.jdt.core.dom.ITypeBinding;
	import org.eclipse.jdt.core.dom.IVariableBinding;
	import org.eclipse.jdt.core.dom.Modifier;

	import org.eclipse.jdt.internal.corext.util.Messages;

	import org.eclipse.jdt.ui.JavaElementImageDescriptor;
	import org.eclipse.jdt.ui.JavaElementLabels;

	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.JavaPluginImages;
	import org.eclipse.jdt.internal.ui.JavaUIMessages;

	/**
	* Label provider to render bindings in viewers.
	*
	* @since 3.1
	*/
	public class BindingLabelProvider extends LabelProvider {


	private static int getAdornmentFlags(IBinding binding, int flags) {
	int adornments= 0;
	if (binding instanceof IMethodBinding && ((IMethodBinding) binding).isConstructor())
	adornments\|= JavaElementImageDescriptor.CONSTRUCTOR;
	final int modifiers= binding.getModifiers();
	if (Modifier.isAbstract(modifiers))
	adornments\|= JavaElementImageDescriptor.ABSTRACT;
	if (Modifier.isFinal(modifiers))
	adornments\|= JavaElementImageDescriptor.FINAL;
	if (Modifier.isSynchronized(modifiers))
	adornments\|= JavaElementImageDescriptor.SYNCHRONIZED;
	if (Modifier.isStatic(modifiers))
	adornments\|= JavaElementImageDescriptor.STATIC;
	if (binding.isDeprecated())
	adornments\|= JavaElementImageDescriptor.DEPRECATED;
	return adornments;
	}

	private static ImageDescriptor getBaseImageDescriptor(IBinding binding, int flags) {
	if (binding instanceof ITypeBinding) {
	ITypeBinding typeBinding= (ITypeBinding) binding;
	if (typeBinding.isArray()) {
	typeBinding= typeBinding.getElementType();
	}
	if (typeBinding.isCapture()) {
	typeBinding.getWildcard();
	}
	return getTypeImageDescriptor(typeBinding.getDeclaringClass() != null, typeBinding, flags);
	} else if (binding instanceof IMethodBinding) {
	ITypeBinding type= ((IMethodBinding) binding).getDeclaringClass();
	int modifiers= binding.getModifiers();
	if (type.isEnum() && (!Modifier.isPublic(modifiers) && !Modifier.isProtected(modifiers) && !Modifier.isPrivate(modifiers)) && ((IMethodBinding) binding).isConstructor())
	return JavaPluginImages.DESC_MISC_PRIVATE;
	return getMethodImageDescriptor(binding.getModifiers());
	} else if (binding instanceof IVariableBinding)
	return getFieldImageDescriptor((IVariableBinding) binding);
	return JavaPluginImages.DESC_OBJS_UNKNOWN;
	}

	private static ImageDescriptor getClassImageDescriptor(int modifiers) {
	if (Modifier.isPublic(modifiers) \|\| Modifier.isProtected(modifiers) \|\| Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_OBJS_CLASS;
	else
	return JavaPluginImages.DESC_OBJS_CLASS_DEFAULT;
	}

	private static ImageDescriptor getFieldImageDescriptor(IVariableBinding binding) {
	final int modifiers= binding.getModifiers();
	if (Modifier.isPublic(modifiers) \|\| binding.isEnumConstant())
	return JavaPluginImages.DESC_FIELD_PUBLIC;
	if (Modifier.isProtected(modifiers))
	return JavaPluginImages.DESC_FIELD_PROTECTED;
	if (Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_FIELD_PRIVATE;

	return JavaPluginImages.DESC_FIELD_DEFAULT;
	}

	private static void getFieldLabel(IVariableBinding binding, long flags, StringBuffer buffer) {
	if (((flags & JavaElementLabels.F_PRE_TYPE_SIGNATURE) != 0) && !binding.isEnumConstant()) {
	getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	buffer.append(' ');
	}
	// qualification

	if ((flags & JavaElementLabels.F_FULLY_QUALIFIED) != 0) {
	ITypeBinding declaringClass= binding.getDeclaringClass();
	if (declaringClass != null) { // test for array.length
	getTypeLabel(declaringClass, JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	buffer.append('.');
	}
	}
	buffer.append(binding.getName());
	if (((flags & JavaElementLabels.F_APP_TYPE_SIGNATURE) != 0) && !binding.isEnumConstant()) {
	buffer.append(JavaElementLabels.DECL_STRING);
	getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	// post qualification
	if ((flags & JavaElementLabels.F_POST_QUALIFIED) != 0) {
	ITypeBinding declaringClass= binding.getDeclaringClass();
	if (declaringClass != null) { // test for array.length
	buffer.append(JavaElementLabels.CONCAT_STRING);
	getTypeLabel(declaringClass, JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	}
	}
	}

	private static void getLocalVariableLabel(IVariableBinding binding, long flags, StringBuffer buffer) {
	if (((flags & JavaElementLabels.F_PRE_TYPE_SIGNATURE) != 0)) {
	getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	buffer.append(' ');
	}
	if (((flags & JavaElementLabels.F_FULLY_QUALIFIED) != 0)) {
	IMethodBinding declaringMethod= binding.getDeclaringMethod();
	if (declaringMethod != null) {
	getMethodLabel(declaringMethod, flags, buffer);
	buffer.append('.');
	}
	}
	buffer.append(binding.getName());
	if (((flags & JavaElementLabels.F_APP_TYPE_SIGNATURE) != 0)) {
	buffer.append(JavaElementLabels.DECL_STRING);
	getTypeLabel(binding.getType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	}

	private static ImageDescriptor getInnerClassImageDescriptor(int modifiers) {
	if (Modifier.isPublic(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_CLASS_PUBLIC;
	else if (Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_CLASS_PRIVATE;
	else if (Modifier.isProtected(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_CLASS_PROTECTED;
	else
	return JavaPluginImages.DESC_OBJS_INNER_CLASS_DEFAULT;
	}

	private static ImageDescriptor getInnerInterfaceImageDescriptor(int modifiers) {
	if (Modifier.isPublic(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PUBLIC;
	else if (Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PRIVATE;
	else if (Modifier.isProtected(modifiers))
	return JavaPluginImages.DESC_OBJS_INNER_INTERFACE_PROTECTED;
	else
	return JavaPluginImages.DESC_OBJS_INTERFACE_DEFAULT;
	}

	private static ImageDescriptor getInterfaceImageDescriptor(int modifiers) {
	if (Modifier.isPublic(modifiers) \|\| Modifier.isProtected(modifiers) \|\| Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_OBJS_INTERFACE;
	else
	return JavaPluginImages.DESC_OBJS_INTERFACE_DEFAULT;
	}

	private static ImageDescriptor getMethodImageDescriptor(int modifiers) {
	if (Modifier.isPublic(modifiers))
	return JavaPluginImages.DESC_MISC_PUBLIC;
	if (Modifier.isProtected(modifiers))
	return JavaPluginImages.DESC_MISC_PROTECTED;
	if (Modifier.isPrivate(modifiers))
	return JavaPluginImages.DESC_MISC_PRIVATE;

	return JavaPluginImages.DESC_MISC_DEFAULT;
	}

	private static void appendDimensions(int dim, StringBuffer buffer) {
	for (int i=0 ; i < dim; i++) {
	buffer.append('[').append(']');
	}
	}


	private static void getMethodLabel(IMethodBinding binding, long flags, StringBuffer buffer) {
	// return type
	if ((flags & JavaElementLabels.M_PRE_TYPE_PARAMETERS) != 0) {
	if (binding.isGenericMethod()) {
	ITypeBinding[] typeParameters= binding.getTypeParameters();
	if (typeParameters.length > 0) {
	getTypeParametersLabel(typeParameters, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	buffer.append(' ');
	}
	}
	}
	// return type
	if (((flags & JavaElementLabels.M_PRE_RETURNTYPE) != 0) && !binding.isConstructor()) {
	getTypeLabel(binding.getReturnType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	buffer.append(' ');
	}
	// qualification
	if ((flags & JavaElementLabels.M_FULLY_QUALIFIED) != 0) {
	getTypeLabel(binding.getDeclaringClass(), JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	buffer.append('.');
	}
	buffer.append(binding.getName());
	if ((flags & JavaElementLabels.M_APP_TYPE_PARAMETERS) != 0) {
	if (binding.isParameterizedMethod()) {
	ITypeBinding[] typeArguments= binding.getTypeArguments();
	if (typeArguments.length > 0) {
	buffer.append(' ');
	getTypeArgumentsLabel(typeArguments, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	}
	}


	// parameters
	buffer.append('(');
	if ((flags & JavaElementLabels.M_PARAMETER_TYPES \| JavaElementLabels.M_PARAMETER_NAMES) != 0) {
	ITypeBinding[] parameters= ((flags & JavaElementLabels.M_PARAMETER_TYPES) != 0) ? binding.getParameterTypes() : null;
	if (parameters != null) {
	for (int index= 0; index < parameters.length; index++) {
	if (index > 0) {
	buffer.append(JavaElementLabels.COMMA_STRING);
	}
	ITypeBinding paramType= parameters[index];
	if (binding.isVarargs() && (index == parameters.length - 1)) {
	getTypeLabel(paramType.getElementType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	appendDimensions(paramType.getDimensions() - 1, buffer);
	buffer.append(JavaElementLabels.ELLIPSIS_STRING);
	} else {
	getTypeLabel(paramType, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	}
	}
	} else {
	if (binding.getParameterTypes().length > 0) {
	buffer.append(JavaElementLabels.ELLIPSIS_STRING);
	}
	}
	buffer.append(')');

	if ((flags & JavaElementLabels.M_EXCEPTIONS) != 0) {
	ITypeBinding[] exceptions= binding.getExceptionTypes();
	if (exceptions.length > 0) {
	buffer.append(" throws "); //$NON-NLS-1$
	for (int index= 0; index < exceptions.length; index++) {
	if (index > 0) {
	buffer.append(JavaElementLabels.COMMA_STRING);
	}
	getTypeLabel(exceptions[index], (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	}
	}
	if ((flags & JavaElementLabels.M_APP_TYPE_PARAMETERS) != 0) {
	if (binding.isGenericMethod()) {
	ITypeBinding[] typeParameters= binding.getTypeParameters();
	if (typeParameters.length > 0) {
	buffer.append(' ');
	getTypeParametersLabel(typeParameters, (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	}
	}
	if (((flags & JavaElementLabels.M_APP_RETURNTYPE) != 0) && !binding.isConstructor()) {
	buffer.append(JavaElementLabels.DECL_STRING);
	getTypeLabel(binding.getReturnType(), (flags & JavaElementLabels.T_TYPE_PARAMETERS), buffer);
	}
	// post qualification
	if ((flags & JavaElementLabels.M_POST_QUALIFIED) != 0) {
	buffer.append(JavaElementLabels.CONCAT_STRING);
	getTypeLabel(binding.getDeclaringClass(), JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	}
	}

	private static ImageDescriptor getTypeImageDescriptor(boolean inner, ITypeBinding binding, int flags) {
	if (binding.isEnum())
	return JavaPluginImages.DESC_OBJS_ENUM;
	else if (binding.isAnnotation())
	return JavaPluginImages.DESC_OBJS_ANNOTATION;
	else if (binding.isInterface()) {
	if ((flags & JavaElementImageProvider.LIGHT_TYPE_ICONS) != 0)
	return JavaPluginImages.DESC_OBJS_INTERFACEALT;
	if (inner)
	return getInnerInterfaceImageDescriptor(binding.getModifiers());
	return getInterfaceImageDescriptor(binding.getModifiers());
	} else if (binding.isClass()) {
	if ((flags & JavaElementImageProvider.LIGHT_TYPE_ICONS) != 0)
	return JavaPluginImages.DESC_OBJS_CLASSALT;
	if (inner)
	return getInnerClassImageDescriptor(binding.getModifiers());
	return getClassImageDescriptor(binding.getModifiers());
	} else if (binding.isTypeVariable()) {
	return JavaPluginImages.DESC_OBJS_TYPEVARIABLE;
	}
	// primitive type, wildcard
	return null;
	}


	private static void getTypeLabel(ITypeBinding binding, long flags, StringBuffer buffer) {
	if ((flags & JavaElementLabels.T_FULLY_QUALIFIED) != 0) {
	final IPackageBinding pack= binding.getPackage();
	if (pack != null && !pack.isUnnamed()) {
	buffer.append(pack.getName());
	buffer.append('.');
	}
	}
	if ((flags & (JavaElementLabels.T_FULLY_QUALIFIED \| JavaElementLabels.T_CONTAINER_QUALIFIED)) != 0) {
	final ITypeBinding declaring= binding.getDeclaringClass();
	if (declaring != null) {
	getTypeLabel(declaring, JavaElementLabels.T_CONTAINER_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	buffer.append('.');
	}
	final IMethodBinding declaringMethod= binding.getDeclaringMethod();
	if (declaringMethod != null) {
	getMethodLabel(declaringMethod, 0, buffer);
	buffer.append('.');
	}
	}

	if (binding.isCapture()) {
	getTypeLabel(binding.getWildcard(), flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
	} else if (binding.isWildcardType()) {
	buffer.append('?');
	ITypeBinding bound= binding.getBound();
	if (bound != null) {
	if (binding.isUpperbound()) {
	buffer.append(" extends "); //$NON-NLS-1$
	} else {
	buffer.append(" super "); //$NON-NLS-1$
	}
	getTypeLabel(bound, flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
	}
	} else if (binding.isArray()) {
	getTypeLabel(binding.getElementType(), flags & JavaElementLabels.T_TYPE_PARAMETERS, buffer);
	appendDimensions(binding.getDimensions(), buffer);
	} else { // type variables, primitive, reftype
	String name= binding.getTypeDeclaration().getName();
	if (name.length() == 0) {
	if (binding.isEnum()) {
	buffer.append('{' + JavaElementLabels.ELLIPSIS_STRING + '}');
	} else if (binding.isAnonymous()) {
	ITypeBinding[] superInterfaces= binding.getInterfaces();
	ITypeBinding baseType;
	if (superInterfaces.length > 0) {
	baseType= superInterfaces[0];
	} else {
	baseType= binding.getSuperclass();
	}
	if (baseType != null) {
	StringBuffer anonymBaseType= new StringBuffer();
	getTypeLabel(baseType, flags & JavaElementLabels.T_TYPE_PARAMETERS, anonymBaseType);
	buffer.append(Messages.format(JavaUIMessages.JavaElementLabels_anonym_type, anonymBaseType.toString()));
	} else {
	buffer.append(JavaUIMessages.JavaElementLabels_anonym);
	}
	} else {
	buffer.append("UNKNOWN"); //$NON-NLS-1$
	}
	} else {
	buffer.append(name);
	}

	if ((flags & JavaElementLabels.T_TYPE_PARAMETERS) != 0) {
	if (binding.isGenericType()) {
	getTypeParametersLabel(binding.getTypeParameters(), flags, buffer);
	} else if (binding.isParameterizedType()) {
	getTypeArgumentsLabel(binding.getTypeArguments(), flags, buffer);
	}
	}
	}


	if ((flags & JavaElementLabels.T_POST_QUALIFIED) != 0) {
	final IMethodBinding declaringMethod= binding.getDeclaringMethod();
	final ITypeBinding declaringType= binding.getDeclaringClass();
	if (declaringMethod != null) {
	buffer.append(JavaElementLabels.CONCAT_STRING);
	getMethodLabel(declaringMethod, JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	} else if (declaringType != null) {
	buffer.append(JavaElementLabels.CONCAT_STRING);
	getTypeLabel(declaringType, JavaElementLabels.T_FULLY_QUALIFIED \| (flags & JavaElementLabels.P_COMPRESSED), buffer);
	} else {
	final IPackageBinding pack= binding.getPackage();
	if (pack != null && !pack.isUnnamed()) {
	buffer.append(JavaElementLabels.CONCAT_STRING);
	buffer.append(pack.getName());
	}
	}
	}
	}

	private static void getTypeArgumentsLabel(ITypeBinding[] typeArgs, long flags, StringBuffer buf) {
	if (typeArgs.length > 0) {
	buf.append('<');
	for (int i = 0; i < typeArgs.length; i++) {
	if (i > 0) {
	buf.append(JavaElementLabels.COMMA_STRING);
	}
	getTypeLabel(typeArgs[i], flags & JavaElementLabels.T_TYPE_PARAMETERS, buf);
	}
	buf.append('>');
	}
	}


	private static void getTypeParametersLabel(ITypeBinding[] typeParameters, long flags, StringBuffer buffer) {
	if (typeParameters.length > 0) {
	buffer.append('<');
	for (int index= 0; index < typeParameters.length; index++) {
	if (index > 0) {
	buffer.append(JavaElementLabels.COMMA_STRING);
	}
	buffer.append(typeParameters[index].getName());
	}
	buffer.append('>');
	}
	}

	/**
	* Returns the label for a Java element with the flags as defined by {@link JavaElementLabels}.
	* @param binding The binding to render.
	* @param flags The text flags as defined in {@link JavaElementLabels}
	* @return the label of the binding
	*/
	public static String getBindingLabel(IBinding binding, long flags) {
	StringBuffer buffer= new StringBuffer(60);
	if (binding instanceof ITypeBinding) {
	getTypeLabel(((ITypeBinding) binding), flags, buffer);
	} else if (binding instanceof IMethodBinding) {
	getMethodLabel(((IMethodBinding) binding), flags, buffer);
	} else if (binding instanceof IVariableBinding) {
	final IVariableBinding variable= (IVariableBinding) binding;
	if (variable.isField())
	getFieldLabel(variable, flags, buffer);
	else
	getLocalVariableLabel(variable, flags, buffer);
	}
	return buffer.toString();
	}

	/**
	* Returns the image descriptor for a binding with the flags as defined by {@link JavaElementImageProvider}.
	* @param binding The binding to get the image for.
	* @param imageFlags The image flags as defined in {@link JavaElementImageProvider}.
	* @return the image of the binding or null if there is no image
	*/
	public static ImageDescriptor getBindingImageDescriptor(IBinding binding, int imageFlags) {
	ImageDescriptor baseImage= getBaseImageDescriptor(binding, imageFlags);
	if (baseImage != null) {
	int adornmentFlags= getAdornmentFlags(binding, imageFlags);
	Point size= ((imageFlags & JavaElementImageProvider.SMALL_ICONS) != 0) ? JavaElementImageProvider.SMALL_SIZE : JavaElementImageProvider.BIG_SIZE;
	return new JavaElementImageDescriptor(baseImage, adornmentFlags, size);
	}
	return null;
	}


	public static final long DEFAULT_TEXTFLAGS= JavaElementLabels.ALL_DEFAULT;
	public static final int DEFAULT_IMAGEFLAGS= JavaElementImageProvider.OVERLAY_ICONS;


	final private long fTextFlags;
	final private int fImageFlags;

	private ImageDescriptorRegistry fRegistry;

	/**
	* Creates a new binding label provider with default text and image flags
	*/
	public BindingLabelProvider() {
	this(DEFAULT_TEXTFLAGS, DEFAULT_IMAGEFLAGS);
	}

	/**
	* @param textFlags Flags defined in {@link JavaElementLabels}.
	* @param imageFlags Flags defined in {@link JavaElementImageProvider}.
	*/
	public BindingLabelProvider(final long textFlags, final int imageFlags) {
	fImageFlags= imageFlags;
	fTextFlags= textFlags;
	fRegistry= null;
	}

	/*
	* @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
	*/
	public Image getImage(Object element) {
	if (element instanceof IBinding) {
	ImageDescriptor baseImage= getBindingImageDescriptor((IBinding) element, fImageFlags);
	if (baseImage != null) {
	return getRegistry().get(baseImage);
	}
	}
	return super.getImage(element);
	}

	private ImageDescriptorRegistry getRegistry() {
	if (fRegistry == null)
	fRegistry= JavaPlugin.getImageDescriptorRegistry();
	return fRegistry;
	}

	/*
	* @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
	*/
	public String getText(Object element) {
	if (element instanceof IBinding) {
	return getBindingLabel((IBinding) element, fTextFlags);
	}
	return super.getText(element);
	}
	}