| /* |
| |
| 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.flex.forks.batik.css.engine.value; |
| |
| import org.apache.flex.forks.batik.css.engine.CSSEngine; |
| import org.apache.flex.forks.batik.css.engine.CSSStylableElement; |
| import org.apache.flex.forks.batik.css.engine.StyleMap; |
| import org.apache.flex.forks.batik.util.CSSConstants; |
| 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 property with support for |
| * rect values. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id: RectManager.java 475685 2006-11-16 11:16:05Z cam $ |
| */ |
| public abstract class RectManager extends LengthManager { |
| |
| /** |
| * The current orientation. |
| */ |
| protected int orientation; |
| |
| /** |
| * Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}. |
| */ |
| public Value createValue(LexicalUnit lu, CSSEngine engine) |
| throws DOMException { |
| switch (lu.getLexicalUnitType()) { |
| case LexicalUnit.SAC_FUNCTION: |
| if (!lu.getFunctionName().equalsIgnoreCase("rect")) { |
| break; |
| } |
| case LexicalUnit.SAC_RECT_FUNCTION: |
| lu = lu.getParameters(); |
| Value top = createRectComponent(lu); |
| lu = lu.getNextLexicalUnit(); |
| if (lu == null || |
| lu.getLexicalUnitType() != LexicalUnit.SAC_OPERATOR_COMMA) { |
| throw createMalformedRectDOMException(); |
| } |
| lu = lu.getNextLexicalUnit(); |
| Value right = createRectComponent(lu); |
| lu = lu.getNextLexicalUnit(); |
| if (lu == null || |
| lu.getLexicalUnitType() != LexicalUnit.SAC_OPERATOR_COMMA) { |
| throw createMalformedRectDOMException(); |
| } |
| lu = lu.getNextLexicalUnit(); |
| Value bottom = createRectComponent(lu); |
| lu = lu.getNextLexicalUnit(); |
| if (lu == null || |
| lu.getLexicalUnitType() != LexicalUnit.SAC_OPERATOR_COMMA) { |
| throw createMalformedRectDOMException(); |
| } |
| lu = lu.getNextLexicalUnit(); |
| Value left = createRectComponent(lu); |
| return new RectValue(top, right, bottom, left); |
| } |
| throw createMalformedRectDOMException(); |
| } |
| |
| private Value createRectComponent(LexicalUnit lu) throws DOMException { |
| switch (lu.getLexicalUnitType()) { |
| case LexicalUnit.SAC_IDENT: |
| if (lu.getStringValue().equalsIgnoreCase |
| (CSSConstants.CSS_AUTO_VALUE)) { |
| return ValueConstants.AUTO_VALUE; |
| } |
| break; |
| case LexicalUnit.SAC_EM: |
| return new FloatValue(CSSPrimitiveValue.CSS_EMS, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_EX: |
| return new FloatValue(CSSPrimitiveValue.CSS_EXS, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_PIXEL: |
| return new FloatValue(CSSPrimitiveValue.CSS_PX, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_CENTIMETER: |
| return new FloatValue(CSSPrimitiveValue.CSS_CM, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_MILLIMETER: |
| return new FloatValue(CSSPrimitiveValue.CSS_MM, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_INCH: |
| return new FloatValue(CSSPrimitiveValue.CSS_IN, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_POINT: |
| return new FloatValue(CSSPrimitiveValue.CSS_PT, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_PICA: |
| return new FloatValue(CSSPrimitiveValue.CSS_PC, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_INTEGER: |
| return new FloatValue(CSSPrimitiveValue.CSS_NUMBER, |
| lu.getIntegerValue()); |
| case LexicalUnit.SAC_REAL: |
| return new FloatValue(CSSPrimitiveValue.CSS_NUMBER, |
| lu.getFloatValue()); |
| case LexicalUnit.SAC_PERCENTAGE: |
| return new FloatValue(CSSPrimitiveValue.CSS_PERCENTAGE, |
| lu.getFloatValue()); |
| } |
| throw createMalformedRectDOMException(); |
| } |
| |
| /** |
| * 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; |
| } |
| if (value.getPrimitiveType() != CSSPrimitiveValue.CSS_RECT) { |
| return value; |
| } |
| RectValue rect = (RectValue)value; |
| |
| orientation = VERTICAL_ORIENTATION; |
| Value top = super.computeValue(elt, pseudo, engine, idx, sm, |
| rect.getTop()); |
| Value bottom = super.computeValue(elt, pseudo, engine, idx, sm, |
| rect.getBottom()); |
| orientation = HORIZONTAL_ORIENTATION; |
| Value left = super.computeValue(elt, pseudo, engine, idx, sm, |
| rect.getLeft()); |
| Value right = super.computeValue(elt, pseudo, engine, idx, sm, |
| rect.getRight()); |
| if (top != rect.getTop() || |
| right != rect.getRight() || |
| bottom != rect.getBottom() || |
| left != rect.getLeft()) { |
| return new RectValue(top, right, bottom, left); |
| } else { |
| return value; |
| } |
| } |
| |
| /** |
| * Indicates the orientation of the property associated with |
| * this manager. |
| */ |
| protected int getOrientation() { |
| return orientation; |
| } |
| |
| private DOMException createMalformedRectDOMException() { |
| Object[] p = new Object[] { getPropertyName() }; |
| String s = Messages.formatMessage("malformed.rect", p); |
| return new DOMException(DOMException.SYNTAX_ERR, s); |
| } |
| } |