| /* |
| |
| 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.svg12; |
| |
| 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.FloatValue; |
| import org.apache.batik.css.engine.value.Value; |
| import org.apache.batik.css.engine.value.ValueManager; |
| import org.apache.batik.util.SVG12CSSConstants; |
| import org.apache.batik.util.SVGTypes; |
| |
| import org.w3c.css.sac.LexicalUnit; |
| import org.w3c.dom.css.CSSPrimitiveValue; |
| import org.w3c.dom.css.CSSValue; |
| import org.w3c.dom.DOMException; |
| |
| /** |
| * This class provides a factory for the 'margin-*' properties values. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id$ |
| */ |
| public class LineHeightManager extends LengthManager { |
| |
| public LineHeightManager() { } |
| |
| /** |
| * Implements {@link ValueManager#isInheritedProperty()}. |
| */ |
| public boolean isInheritedProperty() { |
| return true; |
| } |
| |
| /** |
| * Implements {@link ValueManager#isAnimatableProperty()}. |
| */ |
| public boolean isAnimatableProperty() { |
| return true; |
| } |
| |
| /** |
| * Implements {@link ValueManager#isAdditiveProperty()}. |
| */ |
| public boolean isAdditiveProperty() { |
| return true; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getPropertyType()}. |
| */ |
| public int getPropertyType() { |
| return SVGTypes.TYPE_LINE_HEIGHT_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getPropertyName()}. |
| */ |
| public String getPropertyName() { |
| return SVG12CSSConstants.CSS_LINE_HEIGHT_PROPERTY; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getDefaultValue()}. |
| */ |
| public Value getDefaultValue() { |
| return SVG12ValueConstants.NORMAL_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}. |
| */ |
| public Value createValue(LexicalUnit lu, CSSEngine engine) |
| throws DOMException { |
| |
| switch (lu.getLexicalUnitType()) { |
| case LexicalUnit.SAC_INHERIT: |
| return SVG12ValueConstants.INHERIT_VALUE; |
| case LexicalUnit.SAC_IDENT: { |
| String s = lu.getStringValue().toLowerCase(); |
| if (SVG12CSSConstants.CSS_NORMAL_VALUE.equals(s)) |
| return SVG12ValueConstants.NORMAL_VALUE; |
| throw createInvalidIdentifierDOMException(lu.getStringValue()); |
| } |
| default: |
| return super.createValue(lu, engine); |
| } |
| } |
| |
| |
| /** |
| * Indicates the orientation of the property associated with |
| * this manager. |
| */ |
| protected int getOrientation() { |
| // Not really used. |
| return VERTICAL_ORIENTATION; |
| } |
| |
| |
| /** |
| * 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_PRIMITIVE_VALUE) |
| return value; |
| |
| switch (value.getPrimitiveType()) { |
| case CSSPrimitiveValue.CSS_NUMBER: |
| return new LineHeightValue(CSSPrimitiveValue.CSS_NUMBER, |
| value.getFloatValue(), true); |
| |
| case CSSPrimitiveValue.CSS_PERCENTAGE: { |
| float v = value.getFloatValue(); |
| int fsidx = engine.getFontSizeIndex(); |
| float fs = engine.getComputedStyle |
| (elt, pseudo, fsidx).getFloatValue(); |
| return new FloatValue(CSSPrimitiveValue.CSS_NUMBER, v * fs * 0.01f); |
| } |
| |
| default: |
| return super.computeValue(elt, pseudo, engine, idx, sm, value); |
| } |
| } |
| } |
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