| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.ui.browsing; |
| |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.core.runtime.Assert; |
| |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.StyledString; |
| |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| 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.viewsupport.AppearanceAwareLabelProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry; |
| import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.TreeHierarchyLayoutProblemsDecorator; |
| |
| /** |
| * Label provider for the Packages view. |
| */ |
| class PackagesViewLabelProvider extends AppearanceAwareLabelProvider { |
| |
| static final int HIERARCHICAL_VIEW_STATE= 0; |
| static final int FLAT_VIEW_STATE= 1; |
| |
| private int fViewState; |
| |
| private ImageDescriptorRegistry fRegistry; |
| private TreeHierarchyLayoutProblemsDecorator fDecorator; |
| |
| PackagesViewLabelProvider(int state) { |
| this(state, AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS | JavaElementLabels.P_COMPRESSED, AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS | JavaElementImageProvider.SMALL_ICONS); |
| } |
| |
| PackagesViewLabelProvider(int state, long textFlags, int imageFlags) { |
| super(textFlags, imageFlags); |
| |
| Assert.isTrue(isValidState(state)); |
| fViewState= state; |
| fRegistry= JavaPlugin.getImageDescriptorRegistry(); |
| |
| fDecorator= new TreeHierarchyLayoutProblemsDecorator(isFlatView()); |
| addLabelDecorator(fDecorator); |
| } |
| |
| private boolean isValidState(int state) { |
| return state == FLAT_VIEW_STATE || state == HIERARCHICAL_VIEW_STATE; |
| } |
| |
| /* |
| * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object) |
| */ |
| @Override |
| public Image getImage(Object element) { |
| if (element instanceof LogicalPackage) { |
| LogicalPackage cp= (LogicalPackage) element; |
| return getLogicalPackageImage(cp); |
| } |
| return super.getImage(element); |
| } |
| |
| /* |
| * Decoration is only concerned with error ticks |
| */ |
| private Image getLogicalPackageImage(LogicalPackage cp) { |
| IPackageFragment[] fragments= cp.getFragments(); |
| for (int i= 0; i < fragments.length; i++) { |
| IPackageFragment fragment= fragments[i]; |
| if(!isEmpty(fragment)) { |
| return decorateCompoundElement(JavaPluginImages.DESC_OBJS_LOGICAL_PACKAGE, cp); |
| } |
| } |
| return decorateCompoundElement(JavaPluginImages.DESC_OBJS_EMPTY_LOGICAL_PACKAGE, cp); |
| } |
| |
| |
| private Image decorateCompoundElement(ImageDescriptor imageDescriptor, LogicalPackage cp) { |
| Image image= fRegistry.get(imageDescriptor); |
| return decorateImage(image, cp); |
| } |
| |
| private boolean isEmpty(IPackageFragment fragment) { |
| try { |
| return (fragment.getCompilationUnits().length == 0) && (fragment.getOrdinaryClassFiles().length == 0); |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| return false; |
| } |
| |
| /* |
| * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object) |
| */ |
| @Override |
| public String getText(Object element) { |
| if (element instanceof IPackageFragment) |
| return getText((IPackageFragment)element); |
| else if (element instanceof LogicalPackage) |
| return getText((LogicalPackage)element); |
| else |
| return super.getText(element); |
| } |
| |
| @Override |
| public StyledString getStyledText(Object element) { |
| if (element instanceof IPackageFragment || element instanceof LogicalPackage) |
| return new StyledString(getText(element)); |
| return super.getStyledText(element); |
| } |
| |
| private String getText(IPackageFragment fragment) { |
| if (isFlatView()) |
| return getFlatText(fragment); |
| else |
| return getHierarchicalText(fragment); |
| } |
| |
| private String getText(LogicalPackage logicalPackage) { |
| IPackageFragment[] fragments= logicalPackage.getFragments(); |
| return getText(fragments[0]); |
| } |
| |
| private String getFlatText(IPackageFragment fragment) { |
| return super.getText(fragment); |
| } |
| |
| private boolean isFlatView() { |
| return fViewState==FLAT_VIEW_STATE; |
| } |
| |
| private String getHierarchicalText(IPackageFragment fragment) { |
| if (fragment.isDefaultPackage()) { |
| return super.getText(fragment); |
| } |
| IResource res= fragment.getResource(); |
| if(res != null && !(res.getType() == IResource.FILE)) |
| return decorateText(res.getName(), fragment); |
| else |
| return decorateText(calculateName(fragment), fragment); |
| } |
| |
| private String calculateName(IPackageFragment fragment) { |
| |
| String name= fragment.getElementName(); |
| if (name.indexOf('.') != -1) |
| name= name.substring(name.lastIndexOf(".") + 1); //$NON-NLS-1$ |
| return name; |
| |
| } |
| } |