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/*******************************************************************************
* Copyright (C) 2006, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* Copyright (C) 2011, Matthias Sohn <matthias.sohn@sap.com>
* Copyright (C) 2011, IBM Corporation
* Copyright (C) 2012, Mathias Kinzler <mathias.kinzler@sap.com>
* Copyright (C) 2015, Thomas Wolf <thomas.wolf@paranor.ch>
*
* All rights reserved. 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
*******************************************************************************/
package org.eclipse.egit.ui.internal.dialogs;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.UIPreferences;
import org.eclipse.egit.ui.internal.PreferenceBasedDateFormatter;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProviderChangedEvent;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.util.GitDateFormatter;
import org.eclipse.swt.graphics.Image;
/**
* A Label provider for commits.
*/
public class CommitLabelProvider extends BaseLabelProvider implements
ITableLabelProvider {
private GitDateFormatter dateFormatter;
private boolean showEmail;
private RevCommit lastCommit;
private PersonIdent lastAuthor;
private PersonIdent lastCommitter;
private IPropertyChangeListener uiPrefsListener;
private final IPreferenceStore store;
/**
* Default constructor
*/
public CommitLabelProvider() {
this(true);
}
/**
* Constructs a {@link CommitLabelProvider} that optionally does not react
* to the preference for showing e-mails.
*
* @param canShowEmailAddresses
* whether this label provider shall show E-Mail addresses if the
* corresponding preference is set
*/
public CommitLabelProvider(final boolean canShowEmailAddresses) {
super();
store = Activator.getDefault().getPreferenceStore();
uiPrefsListener = new IPropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent event) {
String property = event.getProperty();
if ((UIPreferences.DATE_FORMAT.equals(property)
|| UIPreferences.DATE_FORMAT_CHOICE.equals(property))
&& (dateFormatter instanceof PreferenceBasedDateFormatter)) {
setDateFormatter(PreferenceBasedDateFormatter.create());
} else if (UIPreferences.RESOURCEHISTORY_SHOW_RELATIVE_DATE
.equals(property)) {
setRelativeDate(store.getBoolean(
UIPreferences.RESOURCEHISTORY_SHOW_RELATIVE_DATE));
} else if (canShowEmailAddresses
&& UIPreferences.RESOURCEHISTORY_SHOW_EMAIL_ADDRESSES
.equals(property)) {
setShowEmailAddresses(store.getBoolean(
UIPreferences.RESOURCEHISTORY_SHOW_EMAIL_ADDRESSES));
}
}
};
if (store
.getBoolean(UIPreferences.RESOURCEHISTORY_SHOW_RELATIVE_DATE)) {
dateFormatter = new GitDateFormatter(
GitDateFormatter.Format.RELATIVE);
}
showEmail = canShowEmailAddresses && store
.getBoolean(UIPreferences.RESOURCEHISTORY_SHOW_EMAIL_ADDRESSES);
store.addPropertyChangeListener(uiPrefsListener);
}
@Override
public void dispose() {
store.removePropertyChangeListener(uiPrefsListener);
super.dispose();
}
@Override
public String getColumnText(final Object element, final int columnIndex) {
final RevCommit c = (RevCommit) element;
if (columnIndex == 0)
return c.getId().abbreviate(7).name();
if (columnIndex == 1)
return c.getShortMessage();
if (columnIndex == 2 || columnIndex == 3) {
final PersonIdent author = authorOf(c);
if (author != null)
switch (columnIndex) {
case 2:
if (showEmail)
return author.getName()
+ " <" + author.getEmailAddress() + '>'; //$NON-NLS-1$
else
return author.getName();
case 3:
return getDateFormatter().formatDate(author);
}
}
if (columnIndex == 4 || columnIndex == 5) {
final PersonIdent committer = committerOf(c);
if (committer != null)
switch (columnIndex) {
case 4:
if (showEmail)
return committer.getName()
+ " <" + committer.getEmailAddress() + '>'; //$NON-NLS-1$
else
return committer.getName();
case 5:
return getDateFormatter().formatDate(committer);
}
}
return ""; //$NON-NLS-1$
}
private GitDateFormatter getDateFormatter() {
if (dateFormatter == null) {
dateFormatter = PreferenceBasedDateFormatter.create();
}
return dateFormatter;
}
private PersonIdent authorOf(final RevCommit c) {
if (lastCommit != c) {
lastCommit = c;
lastAuthor = c.getAuthorIdent();
lastCommitter = c.getCommitterIdent();
}
return lastAuthor;
}
private PersonIdent committerOf(final RevCommit c) {
if (lastCommit != c) {
lastCommit = c;
lastAuthor = c.getAuthorIdent();
lastCommitter = c.getCommitterIdent();
}
return lastCommitter;
}
@Override
public Image getColumnImage(final Object element, final int columnIndex) {
return null;
}
/**
* @param relative {@code true} if the date column should show relative dates
*/
private void setRelativeDate(boolean relative) {
if (dateFormatter instanceof PreferenceBasedDateFormatter) {
if (relative) {
setDateFormatter(
new GitDateFormatter(GitDateFormatter.Format.RELATIVE));
}
} else if (!relative) {
setDateFormatter(PreferenceBasedDateFormatter.create());
}
}
/**
* @param showEmail true to show e-mail addresses, false otherwise
*/
private void setShowEmailAddresses(boolean showEmail) {
if (showEmail != this.showEmail) {
this.showEmail = showEmail;
fireLabelProviderChanged(new LabelProviderChangedEvent(this));
}
}
private void setDateFormatter(GitDateFormatter formatter) {
dateFormatter = formatter;
fireLabelProviderChanged(new LabelProviderChangedEvent(this));
}
}
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