| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.openapi.diff.impl.util; |
| |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.RangeMarker; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class DocumentUtil { |
| |
| @NotNull |
| public static String getText(@NotNull RangeMarker range) { |
| return range.getDocument().getText().substring(range.getStartOffset(), range.getEndOffset()); |
| } |
| |
| public static boolean isEmpty(@NotNull RangeMarker rangeMarker) { |
| return rangeMarker.getStartOffset() == rangeMarker.getEndOffset(); |
| } |
| |
| public static int getStartLine(@NotNull RangeMarker range) { |
| final Document doc = range.getDocument(); |
| if (doc.getTextLength() == 0) return 0; |
| |
| return doc.getLineNumber(range.getStartOffset()); |
| } |
| |
| public static int getEndLine(@NotNull RangeMarker range) { |
| Document document = range.getDocument(); |
| int endOffset = range.getEndOffset(); |
| |
| int endLine = document.getLineNumber(endOffset); |
| if (document.getTextLength() == endOffset && lastLineIsNotEmpty(document, endLine)) { |
| return document.getLineCount(); |
| } |
| return endLine; |
| } |
| |
| private static boolean lastLineIsNotEmpty(@NotNull Document document, int line) { |
| return document.getTextLength() != document.getLineStartOffset(line); |
| } |
| |
| public static int getLength(@NotNull RangeMarker rangeMarker) { |
| return rangeMarker.getEndOffset() - rangeMarker.getStartOffset(); |
| } |
| } |