Have icon for "reset" entry in reflog

[egit/eclipse.git] / org.eclipse.egit.ui / src / org / eclipse / egit / ui / internal / commit / ILogicalLineNumberProvider.java

/*******************************************************************************
 * Copyright (C) 2016, 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.commit;

/**
 * Something that can translate physical to logical line numbers.
 */
public interface ILogicalLineNumberProvider {

        /**
         * Translates a physical line number to a logical one.
         *
         * @param lineNumber
         *            of the physical line
         * @return the logical line number, or -1 if none
         */
        int getLogicalLine(int lineNumber);

        /**
         * Determines the largest line number this
         * {@link ILogicalLineNumberProvider} will return.
         *
         * @return the maximum line number, or -1 if unknown
         */
        int getMaximum();
}