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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.openapi.vcs.ex;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.markup.RangeHighlighter;
import com.intellij.util.diff.Diff;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* author: lesya
*/
public class Range {
private static final Logger LOG = Logger.getInstance(Range.class);
public static final byte MODIFIED = 1;
public static final byte INSERTED = 2;
public static final byte DELETED = 3;
// (2,3) - modified 2nd line
// (2,2) - empty range between 1 and 2 lines
// index of first line is 0
private int myLine1;
private int myLine2;
private final int myVcsLine1;
private final int myVcsLine2;
private final byte myType;
@Nullable private RangeHighlighter myRangeHighlighter;
private boolean myValid = true;
public static Range createOn(@NotNull Diff.Change change, int shift, int vcsShift) {
byte type = getChangeTypeFrom(change);
int line1 = shift + change.line1;
int line2 = line1 + change.inserted;
int vcsLine1 = vcsShift + change.line0;
int vcsLine2 = vcsLine1 + change.deleted;
return new Range(line1, line2, vcsLine1, vcsLine2, type);
}
private static byte getChangeTypeFrom(@NotNull Diff.Change change) {
if ((change.deleted > 0) && (change.inserted > 0)) return MODIFIED;
if ((change.deleted > 0)) return DELETED;
if ((change.inserted > 0)) return INSERTED;
LOG.error("Unknown change type");
return 0;
}
public Range(@NotNull Range range) {
this(range.getLine1(), range.getLine2(), range.getVcsLine1(), range.getVcsLine2(), range.getType());
}
public Range(int line1, int line2, int vcsLine1, int vcsLine2, byte type) {
myLine1 = line1;
myLine2 = line2;
myVcsLine1 = vcsLine1;
myVcsLine2 = vcsLine2;
myType = type;
}
public int hashCode() {
return myVcsLine1 ^ myVcsLine2 ^ myType ^ myLine1 ^ myLine2;
}
public boolean equals(Object object) {
if (!(object instanceof Range)) return false;
Range other = (Range)object;
return
(myVcsLine1 == other.myVcsLine1)
&& (myVcsLine2 == other.myVcsLine2)
&& (myLine1 == other.myLine1)
&& (myLine2 == other.myLine2)
&& (myType == other.myType);
}
public String toString() {
return String.format("%s, %s, %s, %s, %s", myLine1, myLine2, myVcsLine1, myVcsLine2, getTypeName());
}
@NonNls
private String getTypeName() {
switch (myType) {
case MODIFIED:
return "MODIFIED";
case INSERTED:
return "INSERTED";
case DELETED:
return "DELETED";
}
return "UNKNOWN";
}
public byte getType() {
return myType;
}
public int getUpToDateRangeLength() {
return myVcsLine2 - myVcsLine1;
}
public void shift(int shift) {
myLine1 += shift;
myLine2 += shift;
}
public int getLine1() {
return myLine1;
}
public int getLine2() {
return myLine2;
}
public int getVcsLine1() {
return myVcsLine1;
}
public int getVcsLine2() {
return myVcsLine2;
}
public boolean rightBefore(@NotNull Range range) {
return myLine2 == range.myLine1;
}
public boolean hasHighlighter() {
return myRangeHighlighter != null;
}
public void setHighlighter(RangeHighlighter highlighter) {
myRangeHighlighter = highlighter;
}
@Nullable
public RangeHighlighter getHighlighter() {
return myRangeHighlighter;
}
public boolean isValid() {
return myValid;
}
public void invalidate() {
myValid = false;
}
}
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