Java tutorial
/******************************************************************************* * Copyright (c) 2005-2008 Polarion Software. * 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: * Alexei Goncharov (Polarion Software) - initial API and implementation *******************************************************************************/ package org.eclipse.team.svn.ui.mapping; import java.util.HashSet; import org.eclipse.core.resources.IMarker; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.mapping.ResourceTraversal; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.TreePath; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Image; import org.eclipse.team.core.diff.IDiffTree; import org.eclipse.team.internal.core.subscribers.ActiveChangeSet; import org.eclipse.team.internal.core.subscribers.ActiveChangeSetManager; import org.eclipse.team.internal.core.subscribers.ChangeSet; import org.eclipse.team.internal.core.subscribers.DiffChangeSet; import org.eclipse.team.internal.ui.mapping.ResourceModelLabelProvider; import org.eclipse.team.internal.ui.synchronize.ChangeSetCapability; import org.eclipse.team.svn.core.SVNTeamPlugin; import org.eclipse.team.svn.ui.SVNTeamUIPlugin; import org.eclipse.team.svn.ui.SVNUIMessages; import org.eclipse.ui.navigator.ICommonContentExtensionSite; public class SVNChangeSetLabelProvider extends ResourceModelLabelProvider { private Image changeSetImage; public void init(ICommonContentExtensionSite site) { super.init(site); } public String getText(Object element) { if (element instanceof ActiveChangeSet && SVNTeamPlugin.instance().getModelChangeSetManager().isDefault((ActiveChangeSet) element)) { return super.getText(element) + " " + SVNUIMessages.ChangeSet_DefaultDecoration; //$NON-NLS-1$ } return super.getText(element); } protected String getDelegateText(Object elementOrPath) { Object element = this.internalGetElement(elementOrPath); if (element instanceof ChangeSet) { ChangeSet set = (ChangeSet) element; return set.getName(); } return super.getDelegateText(elementOrPath); } protected Image getDelegateImage(Object elementOrPath) { Object element = this.internalGetElement(elementOrPath); if (element instanceof ChangeSet) { return this.getChangeSetImage(); } return super.getDelegateImage(elementOrPath); } private Image getChangeSetImage() { if (this.changeSetImage == null) { this.changeSetImage = SVNTeamUIPlugin.instance().getImageDescriptor("icons/objects/changeset.gif") //$NON-NLS-1$ .createImage(); } return this.changeSetImage; } public void dispose() { if (this.changeSetImage != null) { this.changeSetImage.dispose(); } super.dispose(); } protected boolean isBusy(Object elementOrPath) { Object element = this.internalGetElement(elementOrPath); if (element instanceof DiffChangeSet) { DiffChangeSet dcs = (DiffChangeSet) element; IResource[] resources = dcs.getResources(); for (int i = 0; i < resources.length; i++) { IResource resource = resources[i]; if (getContext().getDiffTree().getProperty(resource.getFullPath(), IDiffTree.P_BUSY_HINT)) { return true; } } return false; } return super.isBusy(elementOrPath); } protected boolean hasDecendantConflicts(Object elementOrPath) { Object element = this.internalGetElement(elementOrPath); if (element instanceof DiffChangeSet) { DiffChangeSet dcs = (DiffChangeSet) element; IResource[] resources = dcs.getResources(); for (int i = 0; i < resources.length; i++) { IResource resource = resources[i]; if (this.getContext().getDiffTree().getProperty(resource.getFullPath(), IDiffTree.P_HAS_DESCENDANT_CONFLICTS)) return true; } return false; } if (elementOrPath instanceof TreePath && element instanceof IResource) { DiffChangeSet set = this.internalGetChangeSet(elementOrPath); if (set != null) { ResourceTraversal[] traversals = this.getTraversalCalculator().getTraversals(set, (TreePath) elementOrPath); return (this.getContext().getDiffTree().hasMatchingDiffs(traversals, CONFLICT_FILTER)); } } return super.hasDecendantConflicts(elementOrPath); } private DiffChangeSet internalGetChangeSet(Object elementOrPath) { if (elementOrPath instanceof TreePath) { TreePath tp = (TreePath) elementOrPath; Object o = tp.getFirstSegment(); if (o instanceof DiffChangeSet) { return (DiffChangeSet) o; } } return null; } protected int getMarkerSeverity(Object elementOrPath) { Object element = this.internalGetElement(elementOrPath); if (element instanceof DiffChangeSet) { DiffChangeSet dcs = (DiffChangeSet) element; HashSet<IProject> projects = new HashSet<IProject>(); IResource[] resources = dcs.getResources(); int severity = -1; for (int i = 0; i < resources.length; i++) { IResource resource = resources[i]; IProject project = resource.getProject(); if (!projects.contains(project)) { projects.add(project); int next = super.getMarkerSeverity(project); if (next == IMarker.SEVERITY_ERROR) { return IMarker.SEVERITY_ERROR; } if (next == IMarker.SEVERITY_WARNING) { severity = next; } } } return severity; } return super.getMarkerSeverity(elementOrPath); } protected void updateLabels(Object[] elements) { super.updateLabels(this.addSetsContainingElements(elements)); } private Object[] addSetsContainingElements(Object[] elements) { HashSet<Object> result = new HashSet<Object>(); for (int i = 0; i < elements.length; i++) { Object object = elements[i]; result.add(object); if (object instanceof IProject) { IProject project = (IProject) object; ChangeSet[] sets = this.getSetsContaing(project); for (int j = 0; j < sets.length; j++) { ChangeSet set = sets[j]; result.add(set); } } } return result.toArray(); } private ChangeSet[] getSetsContaing(IProject project) { return this.getContentProvider().getSetsShowingPropogatedStateFrom(project.getFullPath()); } private SVNChangeSetContentProvider getContentProvider() { return (SVNChangeSetContentProvider) this.getExtensionSite().getExtension().getContentProvider(); } private Object internalGetElement(Object elementOrPath) { if (elementOrPath instanceof TreePath) { TreePath tp = (TreePath) elementOrPath; return tp.getLastSegment(); } return elementOrPath; } public Font getFont(Object element) { element = this.internalGetElement(element); if (element instanceof ActiveChangeSet && this.isDefaultActiveSet((ActiveChangeSet) element)) { return JFaceResources.getFontRegistry().getBold(JFaceResources.DEFAULT_FONT); } return super.getFont(element); } private boolean isDefaultActiveSet(ActiveChangeSet set) { ChangeSetCapability changeSetCapability = this.getContentProvider().getChangeSetCapability(); if (changeSetCapability != null) { ActiveChangeSetManager activeChangeSetManager = changeSetCapability.getActiveChangeSetManager(); if (activeChangeSetManager != null) { return activeChangeSetManager.isDefault(set); } } return false; } }