| /******************************************************************************* |
| * Copyright (c) 2000, 2018 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.dltk.ui.browsing; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.dltk.core.IScriptFolder; |
| import org.eclipse.dltk.core.ModelException; |
| import org.eclipse.dltk.internal.ui.navigator.TreeHierarchyLayoutProblemsDecorator; |
| import org.eclipse.dltk.ui.DLTKPluginImages; |
| import org.eclipse.dltk.ui.DLTKUIPlugin; |
| import org.eclipse.dltk.ui.ScriptElementImageProvider; |
| import org.eclipse.dltk.ui.ScriptElementLabels; |
| import org.eclipse.dltk.ui.viewsupport.AppearanceAwareLabelProvider; |
| import org.eclipse.dltk.ui.viewsupport.ImageDescriptorRegistry; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * 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 |
| | ScriptElementLabels.P_COMPRESSED, |
| AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS |
| | ScriptElementImageProvider.SMALL_ICONS); |
| } |
| |
| PackagesViewLabelProvider(int state, long textFlags, int imageFlags) { |
| super(textFlags, imageFlags, |
| DLTKUIPlugin.getDefault().getPreferenceStore()); |
| |
| Assert.isTrue(isValidState(state)); |
| fViewState = state; |
| fRegistry = DLTKUIPlugin.getImageDescriptorRegistry(); |
| |
| fDecorator = new TreeHierarchyLayoutProblemsDecorator(isFlatView()); |
| addLabelDecorator(fDecorator); |
| } |
| |
| private boolean isValidState(int state) { |
| return state == FLAT_VIEW_STATE || state == HIERARCHICAL_VIEW_STATE; |
| } |
| |
| @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) { |
| IScriptFolder[] fragments = cp.getScriptFolders(); |
| for (int i = 0; i < fragments.length; i++) { |
| IScriptFolder fragment = fragments[i]; |
| if (!isEmpty(fragment)) { |
| return decorateCompoundElement( |
| DLTKPluginImages.DESC_OBJS_LOGICAL_PACKAGE, cp); |
| } |
| } |
| return decorateCompoundElement( |
| DLTKPluginImages.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(IScriptFolder fragment) { |
| try { |
| return (fragment.getSourceModules().length == 0); |
| } catch (ModelException e) { |
| // ignore |
| } |
| return false; |
| } |
| |
| @Override |
| public String getText(Object element) { |
| if (element instanceof IScriptFolder) |
| return getText((IScriptFolder) element); |
| else if (element instanceof LogicalPackage) |
| return getText((LogicalPackage) element); |
| else |
| return super.getText(element); |
| } |
| |
| private String getText(IScriptFolder fragment) { |
| if (isFlatView()) { |
| return getFlatText(fragment); |
| } |
| return getHierarchicalText(fragment); |
| } |
| |
| private String getText(LogicalPackage logicalPackage) { |
| IScriptFolder[] fragments = logicalPackage.getScriptFolders(); |
| return getText(fragments[0]); |
| } |
| |
| private String getFlatText(IScriptFolder fragment) { |
| return super.getText(fragment); |
| } |
| |
| private boolean isFlatView() { |
| return fViewState == FLAT_VIEW_STATE; |
| } |
| |
| private String getHierarchicalText(IScriptFolder fragment) { |
| if (fragment.isRootFolder()) { |
| return super.getText(fragment); |
| } |
| IResource res = fragment.getResource(); |
| if (res != null && !(res.getType() == IResource.FILE)) { |
| return decorateText(res.getName(), fragment); |
| } |
| return decorateText(calculateName(fragment), fragment); |
| } |
| |
| private String calculateName(IScriptFolder fragment) { |
| |
| String name = fragment.getElementName(); |
| if (name.indexOf(".") != -1) //$NON-NLS-1$ |
| name = name.substring(name.lastIndexOf(".") + 1); //$NON-NLS-1$ |
| return name; |
| |
| } |
| } |