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/*******************************************************************************
* Copyright (c) 2000, 2017 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.ui.synchronize;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.structuremergeviewer.DiffNode;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.DecorationOverlayIcon;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.IFontProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.internal.ui.IPreferenceIds;
import org.eclipse.team.internal.ui.TeamUIMessages;
import org.eclipse.team.internal.ui.TeamUIPlugin;
import org.eclipse.team.ui.ISharedImages;
import org.eclipse.team.ui.synchronize.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, IFontProvider {
// Cache for folder images that have been overlayed with conflict icon
private Map<ImageDescriptor, Image> 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();
// Font used to display busy elements
private Font busyFont;
public SynchronizeModelElementLabelProvider() {
}
@Override
public Color getForeground(Object element) {
return null;
}
@Override
public Color getBackground(Object element) {
return null;
}
@Override
public Font getFont(Object element) {
if (element instanceof ISynchronizeModelElement) {
ISynchronizeModelElement node = (ISynchronizeModelElement)element;
if(node.getProperty(ISynchronizeModelElement.BUSY_PROPERTY)) {
if (busyFont == null) {
Font defaultFont = JFaceResources.getDefaultFont();
FontData[] data = defaultFont.getFontData();
for (int i = 0; i < data.length; i++) {
data[i].setStyle(SWT.ITALIC);
}
busyFont = new Font(TeamUIPlugin.getStandardDisplay(), data);
}
return busyFont;
}
}
return null;
}
@Override
public Image getImage(Object element) {
Image base = workbenchLabelProvider.getImage(element);
if (base != null) {
if (element instanceof ISynchronizeModelElement) {
ISynchronizeModelElement syncNode = (ISynchronizeModelElement) element;
int kind = syncNode.getKind();
Image decoratedImage;
decoratedImage = getCompareImage(base, kind);
// 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);
}
}
return base;
}
@Override
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 NLS.bind(TeamUIMessages.TeamSubscriberSyncPage_labelWithSyncKind, new String[] { base, syncKindString }); //
}
}
}
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, ISynchronizeModelElement element) {
ImageDescriptor[] overlayImages = new ImageDescriptor[4];
boolean hasOverlay = false;
// Decorate with the busy indicator
if (element.getProperty(ISynchronizeModelElement.BUSY_PROPERTY)) {
overlayImages[IDecoration.TOP_LEFT] = TeamUIPlugin.getImageDescriptor(ISharedImages.IMG_HOURGLASS_OVR);
hasOverlay = true;
}
// Decorate with propagated conflicts and problem markers
int kind = element.getKind();
if ((kind & SyncInfo.DIRECTION_MASK) != SyncInfo.CONFLICTING) {
// if the folder is already conflicting then don't bother propagating
// the conflict
if (hasDecendantConflicts(element)) {
overlayImages[IDecoration.BOTTOM_RIGHT] = TeamUIPlugin.getImageDescriptor(ISharedImages.IMG_CONFLICT_OVR);
hasOverlay = true;
}
}
if (hasErrorMarker(element)) {
overlayImages[IDecoration.BOTTOM_LEFT] = TeamUIPlugin.getImageDescriptor(ISharedImages.IMG_ERROR_OVR);
hasOverlay = true;
} else if (hasWarningMarker(element)) {
overlayImages[IDecoration.BOTTOM_LEFT] = TeamUIPlugin.getImageDescriptor(ISharedImages.IMG_WARNING_OVR);
hasOverlay = true;
}
if (hasOverlay) {
ImageDescriptor overlay = new DecorationOverlayIcon(base, overlayImages, new Point(base.getBounds().width, base.getBounds().height));
if (fgImageCache == null) {
fgImageCache = new HashMap<>(10);
}
Image conflictDecoratedImage = 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(ISynchronizeModelElement node) {
return node.getProperty(ISynchronizeModelElement.PROPAGATED_CONFLICT_PROPERTY);
}
/**
* Return whether this diff node has descendant conflicts in the view in which it appears.
* @return whether the node has descendant conflicts
*/
private boolean hasErrorMarker(ISynchronizeModelElement node) {
return node.getProperty(ISynchronizeModelElement.PROPAGATED_ERROR_MARKER_PROPERTY);
}
/**
* Return whether this diff node has descendant conflicts in the view in which it appears.
* @return whether the node has descendant conflicts
*/
private boolean hasWarningMarker(ISynchronizeModelElement node) {
return node.getProperty(ISynchronizeModelElement.PROPAGATED_WARNING_MARKER_PROPERTY);
}
@Override
public void dispose() {
workbenchLabelProvider.dispose();
if(busyFont != null) {
busyFont.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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