| /******************************************************************************* |
| * Copyright (c) 2000, 2018 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.team.internal.ccvs.ui.tags; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.team.internal.ccvs.core.CVSTag; |
| import org.eclipse.ui.model.IWorkbenchAdapter; |
| |
| /** |
| * A workbench adapter for a tag source that creates a model |
| * for displaying the tags from a tag source in a tree or table |
| * viewer. The workbench adapter is not a singleton since it needs |
| * to be configured to display certain types of tags. |
| */ |
| public class TagSourceWorkbenchAdapter implements IAdaptable, IWorkbenchAdapter { |
| |
| /** |
| * Constants for configuring which types of tags should be displayed. |
| */ |
| public static final int INCLUDE_HEAD_TAG = 1; |
| public static final int INCLUDE_BASE_TAG = 2; |
| public static final int INCLUDE_BRANCHES = 4; |
| public static final int INCLUDE_VERSIONS = 8; |
| public static final int INCLUDE_DATES = 16; |
| public static final int INCLUDE_ALL_TAGS = INCLUDE_HEAD_TAG | INCLUDE_BASE_TAG | INCLUDE_BRANCHES | INCLUDE_VERSIONS | INCLUDE_DATES; |
| |
| TagRootElement branches; |
| TagRootElement versions; |
| TagRootElement dates; |
| int includeFlags; |
| |
| public static class ProjectElementComparator extends ViewerComparator { |
| |
| /* |
| * The order in the diaog should be HEAD, Branches, Versions, Dates, BASE |
| */ |
| @Override |
| public int category(Object element) { |
| if (element instanceof TagElement) { |
| CVSTag tag = ((TagElement)element).getTag(); |
| if (tag == CVSTag.DEFAULT) return 1; |
| if (tag == CVSTag.BASE) return 5; |
| if (tag.getType() == CVSTag.BRANCH) return 2; |
| if (tag.getType() == CVSTag.VERSION) return 3; |
| if (tag.getType() == CVSTag.DATE) return 4; |
| } else if (element instanceof TagRootElement) { |
| if(((TagRootElement)element).getTypeOfTagRoot() == CVSTag.BRANCH) return 2; |
| if(((TagRootElement)element).getTypeOfTagRoot() == CVSTag.VERSION) return 3; |
| if(((TagRootElement)element).getTypeOfTagRoot() == CVSTag.DATE) return 4; |
| } |
| return 0; |
| } |
| @Override |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| int cat1 = category(e1); |
| int cat2 = category(e2); |
| if (cat1 != cat2) return cat1 - cat2; |
| // Sort version tags in reverse order |
| if (e1 instanceof TagElement){ |
| CVSTag tag1 = ((TagElement)e1).getTag(); |
| int type = tag1.getType(); |
| if(type == CVSTag.VERSION) { |
| return -1 * super.compare(viewer, e1, e2); |
| }else if(type == CVSTag.DATE){ |
| return -1*tag1.compareTo(((TagElement)e2).getTag()); |
| } |
| } |
| return super.compare(viewer, e1, e2); |
| } |
| } |
| |
| |
| /** |
| * Create a viewer input for the tag source |
| * @param tagSource the tag source |
| * @param includeFlags the types of tags to include |
| * @return a tree viewer input |
| */ |
| public static Object createInput(TagSource tagSource, int includeFlags) { |
| if (includeFlags == INCLUDE_VERSIONS) { |
| // Versions only is requested by the merge start page. |
| // Only need to show version tags |
| return new TagRootElement(null, tagSource, CVSTag.VERSION); |
| } |
| return new TagSourceWorkbenchAdapter(tagSource, includeFlags); |
| } |
| |
| public TagSourceWorkbenchAdapter(TagSource tagSource, int includeFlags) { |
| this.includeFlags = includeFlags; |
| if (this.includeFlags == 0) this.includeFlags = INCLUDE_ALL_TAGS; |
| if ((includeFlags & INCLUDE_BRANCHES) > 0) { |
| branches = new TagRootElement(this, tagSource, CVSTag.BRANCH); |
| } |
| if ((includeFlags & INCLUDE_VERSIONS) > 0) { |
| versions = new TagRootElement(this, tagSource, CVSTag.VERSION); |
| } |
| if ((includeFlags & INCLUDE_DATES) > 0) { |
| dates = new TagRootElement(this, tagSource, CVSTag.DATE); |
| } |
| } |
| |
| @Override |
| public Object[] getChildren(Object o) { |
| ArrayList<IAdaptable> children = new ArrayList<>(4); |
| if ((includeFlags & INCLUDE_HEAD_TAG) > 0) { |
| children.add(new TagElement(this, CVSTag.DEFAULT)); |
| } |
| if ((includeFlags & INCLUDE_BASE_TAG) > 0) { |
| children.add(new TagElement(this, CVSTag.BASE)); |
| } |
| if ((includeFlags & INCLUDE_BRANCHES) > 0) { |
| children.add(branches); |
| } |
| if ((includeFlags & INCLUDE_VERSIONS) > 0) { |
| children.add(versions); |
| } |
| if ((includeFlags & INCLUDE_DATES) > 0) { |
| children.add(dates); |
| } |
| return children.toArray(new Object[children.size()]); |
| } |
| @Override |
| public <T> T getAdapter(Class<T> adapter) { |
| if (adapter == IWorkbenchAdapter.class) return adapter.cast(this); |
| return null; |
| } |
| @Override |
| public ImageDescriptor getImageDescriptor(Object object) { |
| return null; |
| } |
| @Override |
| public String getLabel(Object o) { |
| return null; |
| } |
| @Override |
| public Object getParent(Object o) { |
| return null; |
| } |
| } |