| /* |
| * 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.expr; |
| |
| import java.awt.Color; |
| |
| import org.apache.fop.apps.FOUserAgent; |
| import org.apache.fop.datatypes.Length; |
| import org.apache.fop.datatypes.PercentBaseContext; |
| import org.apache.fop.datatypes.Numeric; |
| import org.apache.fop.fo.properties.FixedLength; |
| import org.apache.fop.fo.properties.Property; |
| |
| /** |
| * A numeric property which hold the final absolute result of an expression |
| * calculations. |
| */ |
| public class NumericProperty extends Property implements Numeric, Length { |
| private double value; |
| private int dim; |
| |
| /** |
| * Construct a Numeric object by specifying one or more components, |
| * including absolute length, percent length, table units. |
| * @param value The value of the numeric. |
| * @param dim The dimension of the value. 0 for a Number, 1 for a Length |
| * (any type), >1, <0 if Lengths have been multiplied or divided. |
| */ |
| protected NumericProperty(double value, int dim) { |
| this.value = value; |
| this.dim = dim; |
| } |
| |
| /** |
| * Return the dimension. |
| * {@inheritDoc} |
| */ |
| public int getDimension() { |
| return dim; |
| } |
| |
| /** |
| * Return the value. |
| * {@inheritDoc} |
| */ |
| public double getNumericValue() { |
| return value; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public double getNumericValue(PercentBaseContext context) { |
| return value; |
| } |
| |
| /** |
| * Return true of the numeric is absolute. |
| * {@inheritDoc} |
| */ |
| public boolean isAbsolute() { |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| public Numeric getNumeric() { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| public Number getNumber() { |
| return new Double(value); |
| } |
| |
| /** {@inheritDoc} */ |
| public int getValue() { |
| return (int) value; |
| } |
| |
| /** {@inheritDoc} */ |
| public int getValue(PercentBaseContext context) { |
| return (int) value; |
| } |
| |
| /** {@inheritDoc} */ |
| public Length getLength() { |
| if (dim == 1) { |
| return this; |
| } |
| log.error("Can't create length with dimension " + dim); |
| return null; |
| } |
| |
| /** {@inheritDoc} */ |
| public Color getColor(FOUserAgent foUserAgent) { |
| // TODO: try converting to numeric number and then to color |
| return null; |
| } |
| |
| /** {@inheritDoc} */ |
| public Object getObject() { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| public String toString() { |
| if (dim == 1) { |
| return (int) value + FixedLength.MPT; |
| } else { |
| return value + "^" + dim; |
| } |
| } |
| } |