| /* |
| |
| Copyright 2002-2003 The Apache Software Foundation |
| |
| Licensed 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.css2; |
| |
| import org.apache.batik.css.engine.CSSContext; |
| 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.IdentifierManager; |
| import org.apache.batik.css.engine.value.StringMap; |
| import org.apache.batik.css.engine.value.Value; |
| import org.apache.batik.css.engine.value.ValueConstants; |
| import org.apache.batik.css.engine.value.ValueManager; |
| import org.apache.batik.util.CSSConstants; |
| import org.w3c.css.sac.LexicalUnit; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.css.CSSPrimitiveValue; |
| |
| /** |
| * This class provides a manager for the 'font-weight' property values. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id$ |
| */ |
| public class FontWeightManager extends IdentifierManager { |
| |
| /** |
| * The identifier values. |
| */ |
| protected final static StringMap values = new StringMap(); |
| static { |
| values.put(CSSConstants.CSS_ALL_VALUE, |
| ValueConstants.ALL_VALUE); |
| values.put(CSSConstants.CSS_BOLD_VALUE, |
| ValueConstants.BOLD_VALUE); |
| values.put(CSSConstants.CSS_BOLDER_VALUE, |
| ValueConstants.BOLDER_VALUE); |
| values.put(CSSConstants.CSS_LIGHTER_VALUE, |
| ValueConstants.LIGHTER_VALUE); |
| values.put(CSSConstants.CSS_NORMAL_VALUE, |
| ValueConstants.NORMAL_VALUE); |
| } |
| |
| /** |
| * Implements {@link ValueManager#isInheritedProperty()}. |
| */ |
| public boolean isInheritedProperty() { |
| return true; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getPropertyName()}. |
| */ |
| public String getPropertyName() { |
| return CSSConstants.CSS_FONT_WEIGHT_PROPERTY; |
| } |
| |
| /** |
| * Implements {@link ValueManager#getDefaultValue()}. |
| */ |
| public Value getDefaultValue() { |
| return ValueConstants.NORMAL_VALUE; |
| } |
| |
| /** |
| * Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}. |
| */ |
| public Value createValue(LexicalUnit lu, CSSEngine engine) |
| throws DOMException { |
| if (lu.getLexicalUnitType() == LexicalUnit.SAC_INTEGER) { |
| int i = lu.getIntegerValue(); |
| switch (i) { |
| case 100: |
| return ValueConstants.NUMBER_100; |
| case 200: |
| return ValueConstants.NUMBER_200; |
| case 300: |
| return ValueConstants.NUMBER_300; |
| case 400: |
| return ValueConstants.NUMBER_400; |
| case 500: |
| return ValueConstants.NUMBER_500; |
| case 600: |
| return ValueConstants.NUMBER_600; |
| case 700: |
| return ValueConstants.NUMBER_700; |
| case 800: |
| return ValueConstants.NUMBER_800; |
| case 900: |
| return ValueConstants.NUMBER_900; |
| } |
| throw createInvalidFloatValueDOMException(i); |
| } |
| return super.createValue(lu, engine); |
| } |
| |
| /** |
| * Implements {@link ValueManager#createFloatValue(short,float)}. |
| */ |
| public Value createFloatValue(short type, float floatValue) |
| throws DOMException { |
| if (type == CSSPrimitiveValue.CSS_NUMBER) { |
| int i = (int)floatValue; |
| if (floatValue == i) { |
| switch (i) { |
| case 100: |
| return ValueConstants.NUMBER_100; |
| case 200: |
| return ValueConstants.NUMBER_200; |
| case 300: |
| return ValueConstants.NUMBER_300; |
| case 400: |
| return ValueConstants.NUMBER_400; |
| case 500: |
| return ValueConstants.NUMBER_500; |
| case 600: |
| return ValueConstants.NUMBER_600; |
| case 700: |
| return ValueConstants.NUMBER_700; |
| case 800: |
| return ValueConstants.NUMBER_800; |
| case 900: |
| return ValueConstants.NUMBER_900; |
| } |
| } |
| } |
| throw createInvalidFloatValueDOMException(floatValue); |
| } |
| |
| /** |
| * 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 == ValueConstants.BOLDER_VALUE) { |
| sm.putParentRelative(idx, true); |
| |
| CSSContext ctx = engine.getCSSContext(); |
| CSSStylableElement p = CSSEngine.getParentCSSStylableElement(elt); |
| float fw; |
| if (p == null) { |
| fw = 400; |
| } else { |
| Value v = engine.getComputedStyle(p, pseudo, idx); |
| fw = v.getFloatValue(); |
| } |
| return createFontWeight(ctx.getBolderFontWeight(fw)); |
| } else if (value == ValueConstants.LIGHTER_VALUE) { |
| sm.putParentRelative(idx, true); |
| |
| CSSContext ctx = engine.getCSSContext(); |
| CSSStylableElement p = CSSEngine.getParentCSSStylableElement(elt); |
| float fw; |
| if (p == null) { |
| fw = 400; |
| } else { |
| Value v = engine.getComputedStyle(p, pseudo, idx); |
| fw = v.getFloatValue(); |
| } |
| return createFontWeight(ctx.getLighterFontWeight(fw)); |
| } else if (value == ValueConstants.NORMAL_VALUE) { |
| return ValueConstants.NUMBER_400; |
| } else if (value == ValueConstants.BOLD_VALUE) { |
| return ValueConstants.NUMBER_700; |
| } |
| return value; |
| } |
| |
| /** |
| * Returns the CSS value associated with the given font-weight. |
| */ |
| protected Value createFontWeight(float f) { |
| switch ((int)f) { |
| case 100: |
| return ValueConstants.NUMBER_100; |
| case 200: |
| return ValueConstants.NUMBER_200; |
| case 300: |
| return ValueConstants.NUMBER_300; |
| case 400: |
| return ValueConstants.NUMBER_400; |
| case 500: |
| return ValueConstants.NUMBER_500; |
| case 600: |
| return ValueConstants.NUMBER_600; |
| case 700: |
| return ValueConstants.NUMBER_700; |
| case 800: |
| return ValueConstants.NUMBER_800; |
| default: // 900 |
| return ValueConstants.NUMBER_900; |
| } |
| } |
| |
| /** |
| * Implements {@link IdentifierManager#getIdentifiers()}. |
| */ |
| public StringMap getIdentifiers() { |
| return values; |
| } |
| } |