Author: gadams
Date: Sat Aug 23 03:53:42 2014
New Revision: 1619961
URL: http://svn.apache.org/r1619961
Log:
FOP-2391: add missing file
Added:
xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java
(with props)
Added:
xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java
URL:
http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java?rev=1619961&view=auto
==============================================================================
---
xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java
(added)
+++
xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java
Sat Aug 23 03:53:42 2014
@@ -0,0 +1,167 @@
+/*
+ * 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.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.svg.text;
+
+import java.text.AttributedCharacterIterator;
+import java.text.AttributedString;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.batik.gvt.text.GVTAttributedCharacterIterator;
+
+import org.apache.fop.complexscripts.bidi.UnicodeBidiAlgorithm;
+import org.apache.fop.traits.Direction;
+
+public class BidiAttributedCharacterIterator implements
AttributedCharacterIterator {
+
+ private AttributedCharacterIterator aci;
+
+ protected BidiAttributedCharacterIterator(AttributedCharacterIterator aci)
{
+ this.aci = aci;
+ }
+
+ public BidiAttributedCharacterIterator(AttributedCharacterIterator aci,
int defaultBidiLevel) {
+ this(annotateBidiLevels(aci, defaultBidiLevel));
+ }
+
+ private static AttributedCharacterIterator
+ annotateBidiLevels(AttributedCharacterIterator aci, int
defaultBidiLevel) {
+ int start = aci.getBeginIndex();
+ int end = aci.getEndIndex();
+ int numChars = end - start;
+ StringBuffer sb = new StringBuffer(numChars);
+ for (int i = 0; i < numChars; ++i) {
+ char ch = aci.setIndex(i);
+ assert ch != AttributedCharacterIterator.DONE;
+ sb.append(ch);
+ }
+ int[] levels =
+ UnicodeBidiAlgorithm.resolveLevels(sb, (defaultBidiLevel & 1) == 1
? Direction.RL : Direction.LR);
+ if (levels != null) {
+ assert levels.length == numChars;
+ AttributedString as = new AttributedString(aci, start, end);
+ int runStart = 0;
+ int runEnd = runStart;
+ int nextRunLevel = -1;
+ int currRunLevel = -1;
+ for (int i = 0, n = levels.length; i < n; ++i) {
+ nextRunLevel = levels[i];
+ if (currRunLevel < 0) {
+ currRunLevel = nextRunLevel;
+ } else if (nextRunLevel != currRunLevel) {
+
as.addAttribute(GVTAttributedCharacterIterator.TextAttribute.BIDI_LEVEL,
+ new Integer(currRunLevel), runStart, i);
+ runStart = i;
+ runEnd = runStart;
+ currRunLevel = nextRunLevel;
+ }
+ }
+ if ((currRunLevel >= 0) && (end > runStart)) {
+
as.addAttribute(GVTAttributedCharacterIterator.TextAttribute.BIDI_LEVEL,
+ new Integer(currRunLevel), runStart, end);
+ }
+ return as.getIterator();
+ } else {
+ return aci;
+ }
+ }
+
+ // CharacterIterator
+
+ public char first() {
+ return aci.first();
+ }
+
+ public char last() {
+ return aci.last();
+ }
+
+ public char current() {
+ return aci.current();
+ }
+
+ public char next() {
+ return aci.next();
+ }
+
+ public char previous() {
+ return aci.previous();
+ }
+
+ public char setIndex(int position) {
+ return aci.setIndex(position);
+ }
+
+ public int getBeginIndex() {
+ return aci.getBeginIndex();
+ }
+
+ public int getEndIndex() {
+ return aci.getEndIndex();
+ }
+
+ public int getIndex() {
+ return aci.getIndex();
+ }
+
+ // @SuppressFBWarnings("CN_IDIOM_NO_SUPER_CALL")
+ public Object clone() {
+ return new
BidiAttributedCharacterIterator((AttributedCharacterIterator)aci.clone());
+ }
+
+ // AttributedCharacterIterator
+
+ public int getRunStart() {
+ return aci.getRunStart();
+ }
+
+ public int getRunStart(AttributedCharacterIterator.Attribute attribute) {
+ return aci.getRunStart(attribute);
+ }
+
+ public int getRunStart(Set<? extends
AttributedCharacterIterator.Attribute> attributes) {
+ return aci.getRunStart(attributes);
+ }
+
+ public int getRunLimit() {
+ return aci.getRunLimit();
+ }
+
+ public int getRunLimit(AttributedCharacterIterator.Attribute attribute) {
+ return aci.getRunLimit(attribute);
+ }
+
+ public int getRunLimit(Set<? extends
AttributedCharacterIterator.Attribute> attributes) {
+ return aci.getRunLimit(attributes);
+ }
+
+ public Map<AttributedCharacterIterator.Attribute, Object> getAttributes() {
+ return aci.getAttributes();
+ }
+
+ public Object getAttribute(AttributedCharacterIterator.Attribute
attribute) {
+ return aci.getAttribute(attribute);
+ }
+
+ public Set<AttributedCharacterIterator.Attribute> getAllAttributeKeys() {
+ return aci.getAllAttributeKeys();
+ }
+
+}
Propchange:
xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/text/BidiAttributedCharacterIterator.java
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