/*
* 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.vcs.impl;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.localVcs.UpToDateLineNumberProvider;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vcs.ex.LineStatusTracker;
import org.jetbrains.annotations.Nullable;
public class UpToDateLineNumberProviderImpl implements UpToDateLineNumberProvider {
private final Document myDocument;
private final LineStatusTrackerManagerI myLineStatusTrackerManagerI;
public UpToDateLineNumberProviderImpl(Document document, Project project) {
myDocument = document;
myLineStatusTrackerManagerI = LineStatusTrackerManager.getInstance(project);
}
@Override
public boolean isRangeChanged(final int start, final int end) {
LineStatusTracker tracker = getTracker();
if (tracker == null) {
return false;
}
else {
return tracker.isRangeModified(start, end);
}
}
@Override
public boolean isLineChanged(int currentNumber) {
LineStatusTracker tracker = getTracker();
if (tracker == null) {
return false;
}
else {
return tracker.isLineModified(currentNumber);
}
}
@Override
public int getLineNumber(int currentNumber) {
LineStatusTracker tracker = getTracker();
if (tracker == null) {
return currentNumber;
}
else {
return tracker.transferLineToVcs(currentNumber, false);
}
}
@Override
public int getLineCount() {
LineStatusTracker tracker = getTracker();
if (tracker == null) {
return myDocument.getLineCount();
}
else {
return tracker.getVcsDocument().getLineCount();
}
}
@Nullable
private LineStatusTracker getTracker() {
LineStatusTracker tracker = myLineStatusTrackerManagerI.getLineStatusTracker(myDocument);
return tracker != null && tracker.isOperational() ? tracker : null;
}
}