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/*
* 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.xdebugger.impl;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileEditor.OpenFileDescriptor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.impl.http.HttpVirtualFile;
import com.intellij.pom.Navigatable;
import com.intellij.testFramework.LightVirtualFile;
import com.intellij.xdebugger.XSourcePosition;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author nik
*/
public class XSourcePositionImpl implements XSourcePosition {
private final VirtualFile myFile;
private final int myLine;
private final int myOffset;
private XSourcePositionImpl(@NotNull VirtualFile file, final int line, final int offset) {
myFile = file;
myLine = line;
myOffset = offset;
}
@Override
public int getLine() {
return myLine;
}
@Override
public int getOffset() {
return myOffset;
}
@Override
@NotNull
public VirtualFile getFile() {
return myFile;
}
/**
* do not call this method from plugins, use {@link com.intellij.xdebugger.XDebuggerUtil#createPositionByOffset(com.intellij.openapi.vfs.VirtualFile, int)} instead
*/
@Nullable
public static XSourcePositionImpl createByOffset(@Nullable VirtualFile file, final int offset) {
if (file == null) return null;
Document document = FileDocumentManager.getInstance().getDocument(file);
if (document == null) {
return null;
}
int line = offset < document.getTextLength() ? document.getLineNumber(offset) : -1;
return new XSourcePositionImpl(file, line, offset);
}
/**
* do not call this method from plugins, use {@link com.intellij.xdebugger.XDebuggerUtil#createPosition(com.intellij.openapi.vfs.VirtualFile, int)} instead
*/
@Nullable
public static XSourcePositionImpl create(@Nullable VirtualFile file, int line) {
if (file == null) {
return null;
}
int offset;
if (file instanceof LightVirtualFile || file instanceof HttpVirtualFile) {
offset = -1;
}
else {
Document document = file.isValid() ? FileDocumentManager.getInstance().getDocument(file) : null;
if (document == null) {
return null;
}
if (line < 0) {
line = 0;
}
offset = line < document.getLineCount() ? document.getLineStartOffset(line) : -1;
}
return new XSourcePositionImpl(file, line, offset);
}
@Override
@NotNull
public Navigatable createNavigatable(@NotNull Project project) {
return createOpenFileDescriptor(project, this);
}
@NotNull
public static OpenFileDescriptor createOpenFileDescriptor(@NotNull Project project, @NotNull XSourcePosition position) {
return position.getOffset() != -1 ? new OpenFileDescriptor(project, position.getFile(), position.getOffset()) : new OpenFileDescriptor(project, position.getFile(), position.getLine(), 0);
}
}
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