/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/*
* @author Oleg V. Khaschansky
*/
package com.google.code.appengine.awt.font;
import org.apache.harmony.misc.HashCode;
import com.google.code.appengine.awt.font.TextHitInfo;
public final class TextHitInfo {
private int charIdx; // Represents character index in the line
private boolean isTrailing;
private TextHitInfo(int idx, boolean isTrailing) {
charIdx = idx;
this.isTrailing = isTrailing;
}
@Override
public String toString() {
return new String(
"TextHitInfo[" + charIdx + ", " + //$NON-NLS-1$ //$NON-NLS-2$
(isTrailing?"Trailing":"Leading") + "]" //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
);
}
@Override
public boolean equals(Object obj) {
if (obj instanceof TextHitInfo) {
return equals((TextHitInfo) obj);
}
return false;
}
public boolean equals(TextHitInfo thi) {
return
thi != null &&
thi.charIdx == charIdx &&
thi.isTrailing == isTrailing;
}
public TextHitInfo getOffsetHit(int offset) {
return new TextHitInfo(charIdx + offset, isTrailing);
}
public TextHitInfo getOtherHit() {
return isTrailing ?
new TextHitInfo(charIdx+1, false) :
new TextHitInfo(charIdx-1, true);
}
public boolean isLeadingEdge() {
return !isTrailing;
}
@Override
public int hashCode() {
return HashCode.combine(charIdx, isTrailing);
}
public int getInsertionIndex() {
return isTrailing ? charIdx+1 : charIdx;
}
public int getCharIndex() {
return charIdx;
}
public static TextHitInfo trailing(int charIndex) {
return new TextHitInfo(charIndex, true);
}
public static TextHitInfo leading(int charIndex) {
return new TextHitInfo(charIndex, false);
}
public static TextHitInfo beforeOffset(int offset) {
return new TextHitInfo(offset-1, true);
}
public static TextHitInfo afterOffset(int offset) {
return new TextHitInfo(offset, false);
}
}