diff options
Diffstat (limited to 'org.eclipse.handly.examples.javamodel.ui/src/org/eclipse/handly/internal/examples/javamodel/ui/JavaElementComparator.java')
| -rw-r--r-- | org.eclipse.handly.examples.javamodel.ui/src/org/eclipse/handly/internal/examples/javamodel/ui/JavaElementComparator.java | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/org.eclipse.handly.examples.javamodel.ui/src/org/eclipse/handly/internal/examples/javamodel/ui/JavaElementComparator.java b/org.eclipse.handly.examples.javamodel.ui/src/org/eclipse/handly/internal/examples/javamodel/ui/JavaElementComparator.java new file mode 100644 index 00000000..f17665ab --- /dev/null +++ b/org.eclipse.handly.examples.javamodel.ui/src/org/eclipse/handly/internal/examples/javamodel/ui/JavaElementComparator.java @@ -0,0 +1,191 @@ +/******************************************************************************* + * Copyright (c) 2000, 2015 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 + * Ondrej Ilcik (Codasip) - adaptation (adapted from + * org.eclipse.jdt.ui.JavaElementComparator) + *******************************************************************************/ +package org.eclipse.handly.internal.examples.javamodel.ui; + +import org.eclipse.core.resources.IContainer; +import org.eclipse.core.resources.IFile; +import org.eclipse.core.resources.IProject; +import org.eclipse.core.runtime.CoreException; +import org.eclipse.handly.examples.javamodel.ICompilationUnit; +import org.eclipse.handly.examples.javamodel.IField; +import org.eclipse.handly.examples.javamodel.IImportContainer; +import org.eclipse.handly.examples.javamodel.IImportDeclaration; +import org.eclipse.handly.examples.javamodel.IJavaElement; +import org.eclipse.handly.examples.javamodel.IJavaProject; +import org.eclipse.handly.examples.javamodel.IMember; +import org.eclipse.handly.examples.javamodel.IMethod; +import org.eclipse.handly.examples.javamodel.IPackageDeclaration; +import org.eclipse.handly.examples.javamodel.IPackageFragment; +import org.eclipse.handly.examples.javamodel.IPackageFragmentRoot; +import org.eclipse.handly.examples.javamodel.IType; +import org.eclipse.handly.internal.examples.javamodel.ui.preferences.MembersOrderPreferenceCache; +import org.eclipse.handly.internal.examples.javamodel.ui.util.JavaFlags; +import org.eclipse.jdt.core.Flags; +import org.eclipse.jface.viewers.Viewer; +import org.eclipse.jface.viewers.ViewerComparator; + +/** + * Viewer comparator for Java elements. + */ +public class JavaElementComparator + extends ViewerComparator +{ + private static final int PROJECTS = 1; + private static final int PACKAGEFRAGMENTROOTS = 2; + private static final int PACKAGEFRAGMENT = 3; + + private static final int COMPILATIONUNITS = 4; + + private static final int RESOURCEFOLDERS = 7; + private static final int RESOURCES = 8; + + private static final int PACKAGE_DECL = 10; + private static final int IMPORT_CONTAINER = 11; + private static final int IMPORT_DECLARATION = 12; + + // Includes all categories ordered using the OutlineSortOrderPage: + // types, initializers, methods & fields + private static final int MEMBERSOFFSET = 15; + + private static final int JAVAELEMENTS = 50; + private static final int OTHERS = 51; + + private MembersOrderPreferenceCache memberOrderCache = + Activator.getMemberOrderPreferenceCache(); + + @Override + public int category(Object element) + { + try + { + if (element instanceof IJavaElement) + { + if (element instanceof IMethod) + { + IMethod method = (IMethod)element; + if (method.isConstructor()) + { + return getMemberCategory( + MembersOrderPreferenceCache.CONSTRUCTORS_INDEX); + } + int flags = method.getFlags(); + if (Flags.isStatic(flags)) + return getMemberCategory( + MembersOrderPreferenceCache.STATIC_METHODS_INDEX); + else + return getMemberCategory( + MembersOrderPreferenceCache.METHOD_INDEX); + } + else if (element instanceof IField) + { + int flags = ((IField)element).getFlags(); + if (Flags.isEnum(flags)) + { + return getMemberCategory( + MembersOrderPreferenceCache.ENUM_CONSTANTS_INDEX); + } + if (Flags.isStatic(flags)) + return getMemberCategory( + MembersOrderPreferenceCache.STATIC_FIELDS_INDEX); + else + return getMemberCategory( + MembersOrderPreferenceCache.FIELDS_INDEX); + } + else if (element instanceof IType) + { + return getMemberCategory( + MembersOrderPreferenceCache.TYPE_INDEX); + } + else if (element instanceof IPackageDeclaration) + { + return PACKAGE_DECL; + } + else if (element instanceof IImportContainer) + { + return IMPORT_CONTAINER; + } + else if (element instanceof IImportDeclaration) + { + return IMPORT_DECLARATION; + } + else if (element instanceof IPackageFragment) + { + return PACKAGEFRAGMENT; + } + else if (element instanceof IPackageFragmentRoot) + { + return PACKAGEFRAGMENTROOTS; + } + else if (element instanceof IJavaProject) + { + return PROJECTS; + } + else if (element instanceof ICompilationUnit) + { + return COMPILATIONUNITS; + } + return JAVAELEMENTS; + } + else if (element instanceof IFile) + { + return RESOURCES; + } + else if (element instanceof IProject) + { + return PROJECTS; + } + else if (element instanceof IContainer) + { + return RESOURCEFOLDERS; + } + } + catch (CoreException e) + { + Activator.log(e.getStatus()); + } + return OTHERS; + } + + @Override + public int compare(Viewer viewer, Object e1, Object e2) + { + if (e1 instanceof IMember) + { + if (memberOrderCache.isSortByVisibility()) + { + try + { + int flags1 = JavaFlags.getVisibilityCode((IMember)e1); + int flags2 = JavaFlags.getVisibilityCode((IMember)e2); + int vis = memberOrderCache.getVisibilityIndex(flags1) + - memberOrderCache.getVisibilityIndex(flags2); + if (vis != 0) + { + return vis; + } + } + catch (CoreException e) + { + Activator.log(e.getStatus()); + } + } + } + return super.compare(viewer, e1, e2); + } + + private int getMemberCategory(int kind) + { + int offset = memberOrderCache.getCategoryIndex(kind); + return offset + MEMBERSOFFSET; + } +} |