| /* |
| |
| 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. |
| |
| */ |
| package org.apache.batik.css.engine.value.svg; |
| |
| import org.apache.batik.css.engine.CSSEngine; |
| import org.apache.batik.css.engine.CSSStylableElement; |
| import org.apache.batik.css.engine.StyleMap; |
| import org.apache.batik.css.engine.value.LengthManager; |
| import org.apache.batik.css.engine.value.ListValue; |
| import org.apache.batik.css.engine.value.Value; |
| import org.apache.batik.css.engine.value.ValueManager; |
| import org.apache.batik.util.CSSConstants; |
| import org.apache.batik.util.SVGTypes; |
| |
| import org.w3c.css.sac.LexicalUnit; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.css.CSSPrimitiveValue; |
| import org.w3c.dom.css.CSSValue; |
| |
| /** |
| * This class provides a manager for the 'enable-background' property values. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id$ |
| */ |
| public class EnableBackgroundManager extends LengthManager { |
| |
| /** |
| * The length orientation. |
| */ |
| protected int orientation; |
| |
| /** |
| * Implements {@link ValueManager#isInheritedProperty()}. |
| */ |
| public boolean isInheritedProperty() { |
| return false; |
| } |
| |
| /** |
| * Implements {@link ValueManager#isAnimatableProperty()}. |
| */ |
| public boolean isAnimatableProperty() { |
| return false; |
| } |
| |
| /** |
| * Implements {@link ValueManager#isAdditiveProperty()}. |
| */ |
| public boolean isAdditiveProperty() { |
| return false; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getPropertyType()}. |
| */ |
| public int getPropertyType() { |
| return SVGTypes.TYPE_ENABLE_BACKGROUND_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getPropertyName()}. |
| */ |
| public String getPropertyName() { |
| return CSSConstants.CSS_ENABLE_BACKGROUND_PROPERTY; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getDefaultValue()}. |
| */ |
| public Value getDefaultValue() { |
| return SVGValueConstants.ACCUMULATE_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}. |
| */ |
| public Value createValue(LexicalUnit lu, CSSEngine engine) |
| throws DOMException { |
| switch (lu.getLexicalUnitType()) { |
| case LexicalUnit.SAC_INHERIT: |
| return SVGValueConstants.INHERIT_VALUE; |
| |
| default: |
| throw createInvalidLexicalUnitDOMException |
| (lu.getLexicalUnitType()); |
| |
| case LexicalUnit.SAC_IDENT: |
| String id = lu.getStringValue().toLowerCase().intern(); |
| if (id == CSSConstants.CSS_ACCUMULATE_VALUE) { |
| return SVGValueConstants.ACCUMULATE_VALUE; |
| } |
| if (id != CSSConstants.CSS_NEW_VALUE) { |
| throw createInvalidIdentifierDOMException(id); |
| } |
| ListValue result = new ListValue(' '); |
| result.append(SVGValueConstants.NEW_VALUE); |
| lu = lu.getNextLexicalUnit(); |
| if (lu == null) { |
| return result; |
| } |
| result.append(super.createValue(lu, engine)); |
| for (int i = 1; i < 4; i++) { |
| lu = lu.getNextLexicalUnit(); |
| if (lu == null){ |
| throw createMalformedLexicalUnitDOMException(); |
| } |
| result.append(super.createValue(lu, engine)); |
| } |
| return result; |
| } |
| } |
| |
| /** |
| * Implements {@link |
| * ValueManager#createStringValue(short,String,CSSEngine)}. |
| */ |
| public Value createStringValue(short type, String value, |
| CSSEngine engine) { |
| if (type != CSSPrimitiveValue.CSS_IDENT) { |
| throw createInvalidStringTypeDOMException(type); |
| } |
| if (!value.equalsIgnoreCase(CSSConstants.CSS_ACCUMULATE_VALUE)) { |
| throw createInvalidIdentifierDOMException(value); |
| } |
| return SVGValueConstants.ACCUMULATE_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#createFloatValue(short,float)}. |
| */ |
| public Value createFloatValue(short unitType, float floatValue) |
| throws DOMException { |
| throw createDOMException(); |
| } |
| |
| /** |
| * Implements {@link |
| * ValueManager#computeValue(CSSStylableElement,String,CSSEngine,int,StyleMap,Value)}. |
| */ |
| public Value computeValue(CSSStylableElement elt, |
| String pseudo, |
| CSSEngine engine, |
| int idx, |
| StyleMap sm, |
| Value value) { |
| if (value.getCssValueType() == CSSValue.CSS_VALUE_LIST) { |
| ListValue lv = (ListValue)value; |
| if (lv.getLength() == 5) { |
| Value lv1 = lv.item(1); |
| orientation = HORIZONTAL_ORIENTATION; |
| Value v1 = super.computeValue(elt, pseudo, engine, |
| idx, sm, lv1); |
| Value lv2 = lv.item(2); |
| orientation = VERTICAL_ORIENTATION; |
| Value v2 = super.computeValue(elt, pseudo, engine, |
| idx, sm, lv2); |
| Value lv3 = lv.item(3); |
| orientation = HORIZONTAL_ORIENTATION; |
| Value v3 = super.computeValue(elt, pseudo, engine, |
| idx, sm, lv3); |
| Value lv4 = lv.item(4); |
| orientation = VERTICAL_ORIENTATION; |
| Value v4 = super.computeValue(elt, pseudo, engine, |
| idx, sm, lv4); |
| |
| if (lv1 != v1 || lv2 != v2 || |
| lv3 != v3 || lv4 != v4) { |
| ListValue result = new ListValue(' '); |
| result.append(lv.item(0)); |
| result.append(v1); |
| result.append(v2); |
| result.append(v3); |
| result.append(v4); |
| return result; |
| } |
| } |
| } |
| return value; |
| } |
| |
| /** |
| * Indicates the orientation of the property associated with |
| * this manager. |
| */ |
| protected int getOrientation() { |
| return orientation; |
| } |
| |
| } |