import org.apache.fop.fo.properties.LineHeightPropertyMaker;
import org.apache.fop.fo.properties.ListProperty;
import org.apache.fop.fo.properties.NumberProperty;
+import org.apache.fop.fo.properties.OptionalCharacterProperty;
import org.apache.fop.fo.properties.PageBreakShorthandParser;
import org.apache.fop.fo.properties.PageDimensionMaker;
import org.apache.fop.fo.properties.PositionShorthandParser;
addPropertyMaker("hyphenate", m);
// hyphenation-character
- m = new CharacterProperty.Maker(PR_HYPHENATION_CHARACTER);
+ m = new OptionalCharacterProperty.Maker(PR_HYPHENATION_CHARACTER);
m.setInherited(true);
m.setDefault("-");
addPropertyMaker("hyphenation-character", m);
public final EnumProperty hyphenate;
/** The "hyphenation-character" property */
- public final CharacterProperty hyphenationCharacter;
+ public final OptionalCharacterProperty hyphenationCharacter;
/** The "hyphenation-push-character-count" property */
public final NumberProperty hyphenationPushCharacterCount;
StringProperty country,
StringProperty script,
EnumProperty hyphenate,
- CharacterProperty hyphenationCharacter,
+ OptionalCharacterProperty hyphenationCharacter,
NumberProperty hyphenationPushCharacterCount,
NumberProperty hyphenationRemainCharacterCount) {
this.language = language;
= (StringProperty) propertyList.get(Constants.PR_SCRIPT);
EnumProperty hyphenate
= (EnumProperty) propertyList.get(Constants.PR_HYPHENATE);
- CharacterProperty hyphenationCharacter
- = (CharacterProperty) propertyList.get(Constants.PR_HYPHENATION_CHARACTER);
+ OptionalCharacterProperty hyphenationCharacter
+ = (OptionalCharacterProperty) propertyList.get(Constants.PR_HYPHENATION_CHARACTER);
NumberProperty hyphenationPushCharacterCount
= (NumberProperty) propertyList.get(Constants.PR_HYPHENATION_PUSH_CHARACTER_COUNT);
NumberProperty hyphenationRemainCharacterCount
* @param font the font
* @return the effective hyphenation character.
*/
- public char getHyphChar(org.apache.fop.fonts.Font font) {
+ public Character getHyphChar(org.apache.fop.fonts.Font font) {
+ if (hyphenationCharacter.getObject() == null) {
+ return null;
+ }
char hyphChar = hyphenationCharacter.getCharacter();
if (font.hasChar(hyphChar)) {
return hyphChar; //short-cut
* @return the IPD in millipoints for the hyphenation character.
*/
public int getHyphIPD(org.apache.fop.fonts.Font font) {
- char hyphChar = getHyphChar(font);
- return font.getCharWidth(hyphChar);
+ Character hyphChar = getHyphChar(font);
+ return (hyphChar == null) ? 0 : font.getCharWidth(hyphChar);
}
/**
--- /dev/null
+/*
+ * 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.fo.properties;
+
+import org.apache.fop.fo.FObj;
+import org.apache.fop.fo.PropertyList;
+
+/**
+ * Superclass for properties that wrap an optional character value
+ * TODO convert character value to int in order to denote unicode scalar value
+ * instead of a single UTF-16 code element
+ */
+public final class OptionalCharacterProperty extends Property {
+
+ /**
+ * Inner class for creating instances of OptionalCharacterProperty
+ */
+ public static class Maker extends PropertyMaker {
+
+ /**
+ * @param propId the id of the property for which a Maker should be created
+ */
+ public Maker(int propId) {
+ super(propId);
+ }
+
+ /** {@inheritDoc} */
+ public Property make(PropertyList propertyList, String value,
+ FObj fo) {
+ if (value.isEmpty()) {
+ return OptionalCharacterProperty.getInstance(null);
+ } else {
+ char c = value.charAt(0);
+ return OptionalCharacterProperty.getInstance(c);
+ }
+ }
+
+ }
+
+ /** cache containing all canonical OptionalCharacterProperty instances */
+ private static final PropertyCache<OptionalCharacterProperty> CACHE
+ = new PropertyCache<OptionalCharacterProperty>();
+
+ private final Character character;
+
+ /**
+ * @param character character value to be wrapped in this property
+ */
+ private OptionalCharacterProperty(Character character) {
+ this.character = character;
+ }
+
+ /**
+ * Get character property instance for character.
+ * @param character the character
+ * @return the character property instance
+ */
+ public static OptionalCharacterProperty getInstance(Character character) {
+ return CACHE.fetch(new OptionalCharacterProperty(character));
+ }
+
+ /**
+ * @return this.character cast as an Object
+ */
+ public Object getObject() {
+ return character;
+ }
+
+ /**
+ * @return this.character
+ */
+ public char getCharacter() {
+ return character == null ? 0 : this.character;
+ }
+
+ /**
+ * @return this.character cast as a String
+ */
+ public String getString() {
+ return character == null ? "" : character.toString();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj instanceof OptionalCharacterProperty) {
+ OptionalCharacterProperty ocp = (OptionalCharacterProperty) obj;
+ return character == ocp.character
+ || character != null
+ && character.equals(ocp.character);
+ } else {
+ return false;
+ }
+ }
+
+ @Override
+ public int hashCode() {
+ return character == null ? 0 : character.hashCode();
+ }
+}
projects / xmlgraphics-fop.git / commitdiff