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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ui.synchronize;
import java.util.*;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.structuremergeviewer.DiffNode;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.Display;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.internal.ui.*;
import org.eclipse.team.ui.ISharedImages;
import org.eclipse.team.ui.synchronize.viewers.ISynchronizeModelElement;
import org.eclipse.ui.model.WorkbenchLabelProvider;
/**
* A label provider that decorates viewers showing
* {@link ISynchronizeModelElement}.
*
* @since 3.0
*/
public class SynchronizeModelElementLabelProvider extends LabelProvider implements IColorProvider {
// Cache for folder images that have been overlayed with conflict icon
private Map fgImageCache;
// Contains direction images
CompareConfiguration compareConfig = new CompareConfiguration();
// Used as the base label provider for retreiving image and text from
// the workbench adapter.
private WorkbenchLabelProvider workbenchLabelProvider = new WorkbenchLabelProvider();
public SynchronizeModelElementLabelProvider() {
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.IColorProvider#getForeground(java.lang.Object)
*/
public Color getForeground(Object element) {
if (element instanceof ISynchronizeModelElement) {
ISynchronizeModelElement node = (ISynchronizeModelElement)element;
if(node.getProperty(ISynchronizeModelElement.BUSY_PROPERTY)) {
return Display.getCurrent().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
}
}
return null;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.IColorProvider#getBackground(java.lang.Object)
*/
public Color getBackground(Object element) {
return null;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
*/
public Image getImage(Object element) {
Image base = workbenchLabelProvider.getImage(element);
if (base != null) {
if (element instanceof DiffNode) {
DiffNode syncNode = (DiffNode) element;
int kind = syncNode.getKind();
Image decoratedImage;
decoratedImage = getCompareImage(base, kind);
if (syncNode.hasChildren()) {
// The reason we still overlay the compare image is to
// ensure that the image width for all images shown in the viewer
// are consistent.
return propagateConflicts(decoratedImage, syncNode);
} else {
return decoratedImage;
}
}
}
return base;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
*/
public String getText(Object element) {
String base = workbenchLabelProvider.getText(element);
if (element instanceof DiffNode) {
if (TeamUIPlugin.getPlugin().getPreferenceStore().getBoolean(IPreferenceIds.SYNCVIEW_VIEW_SYNCINFO_IN_LABEL)) {
// if the folder is already conflicting then don't bother
// propagating the conflict
int kind = ((DiffNode) element).getKind();
if (kind != SyncInfo.IN_SYNC) {
String syncKindString = SyncInfo.kindToString(kind);
return Policy.bind("TeamSubscriberSyncPage.labelWithSyncKind", base, syncKindString); //$NON-NLS-1$
}
}
}
return base;
}
protected Image getCompareImage(Image base, int kind) {
switch (kind & SyncInfo.DIRECTION_MASK) {
case SyncInfo.OUTGOING :
kind = (kind & ~SyncInfo.OUTGOING) | SyncInfo.INCOMING;
break;
case SyncInfo.INCOMING :
kind = (kind & ~SyncInfo.INCOMING) | SyncInfo.OUTGOING;
break;
}
return compareConfig.getImage(base, kind);
}
private Image propagateConflicts(Image base, DiffNode element) {
// if the folder is already conflicting then don't bother propagating
// the conflict
int kind = element.getKind();
if ((kind & SyncInfo.DIRECTION_MASK) != SyncInfo.CONFLICTING) {
if (hasDecendantConflicts(element)) {
ImageDescriptor overlay = new OverlayIcon(base, new ImageDescriptor[]{TeamUIPlugin.getImageDescriptor(ISharedImages.IMG_CONFLICT_OVR)}, new int[]{OverlayIcon.BOTTOM_LEFT}, new Point(base.getBounds().width, base.getBounds().height));
if (fgImageCache == null) {
fgImageCache = new HashMap(10);
}
Image conflictDecoratedImage = (Image) fgImageCache.get(overlay);
if (conflictDecoratedImage == null) {
conflictDecoratedImage = overlay.createImage();
fgImageCache.put(overlay, conflictDecoratedImage);
}
return conflictDecoratedImage;
}
}
return base;
}
/**
* Return whether this diff node has descendant conflicts in the view in which it appears.
* @return whether the node has descendant conflicts
*/
private boolean hasDecendantConflicts(DiffNode node) {
if(node instanceof ISynchronizeModelElement) {
return ((ISynchronizeModelElement)node).getProperty(ISynchronizeModelElement.PROPAGATED_CONFLICT_PROPERTY);
}
return false;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
*/
public void dispose() {
compareConfig.dispose();
if (fgImageCache != null) {
Iterator it = fgImageCache.values().iterator();
while (it.hasNext()) {
Image element = (Image) it.next();
element.dispose();
}
}
}
}
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