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/**
* Copyright (C) 2006-2014 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* 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 com.phloc.css.propertyvalue;
import java.io.Serializable;
import java.math.BigDecimal;
import java.math.RoundingMode;
import javax.annotation.CheckReturnValue;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.concurrent.NotThreadSafe;
import com.phloc.commons.ValueEnforcer;
import com.phloc.commons.annotations.Nonempty;
import com.phloc.commons.equals.EqualsUtils;
import com.phloc.commons.hash.HashCodeGenerator;
import com.phloc.commons.string.ToStringGenerator;
import com.phloc.css.CCSS;
import com.phloc.css.ECSSUnit;
/**
* This class encapsulates a single numeric value and a unit ({@link ECSSUnit}).
*
* @author Philip Helger
*/
@NotThreadSafe
public class CSSSimpleValueWithUnit implements Serializable
{
private BigDecimal m_aValue;
private ECSSUnit m_eUnit;
/**
* Constructor
*
* @param aValue
* Numeric value. May not be null.
* @param eUnit
* CSS unit to use. May not be null.
*/
public CSSSimpleValueWithUnit (@Nonnull final BigDecimal aValue, @Nonnull final ECSSUnit eUnit)
{
setValue (aValue);
setUnit (eUnit);
}
/**
* Constructor
*
* @param dValue
* Numeric value
* @param eUnit
* CSS unit to use. May not be null.
*/
public CSSSimpleValueWithUnit (final double dValue, @Nonnull final ECSSUnit eUnit)
{
this (BigDecimal.valueOf (dValue), eUnit);
}
/**
* Set the numerical value.
*
* @param aValue
* The new value to set. May not be null.
* @return this
* @since 3.7.3
*/
@Nonnull
public CSSSimpleValueWithUnit setValue (@Nonnull final BigDecimal aValue)
{
m_aValue = ValueEnforcer.notNull (aValue, "Value");
return this;
}
/**
* Set the numerical value.
*
* @param dValue
* The new value to set.
* @return this
* @since 3.7.3
*/
@Nonnull
public CSSSimpleValueWithUnit setValue (final double dValue)
{
return setValue (BigDecimal.valueOf (dValue));
}
/**
* @return The numeric value as a decimal value (as passed in the constructor)
* @since 3.7.3
*/
@Nonnull
public BigDecimal getAsBigDecimalValue ()
{
return m_aValue;
}
/**
* @return The numeric value as a decimal value (as passed in the constructor)
*/
public double getValue ()
{
return m_aValue.doubleValue ();
}
/**
* @return The numeric value as an int value - no check for validity is
* performed
*/
public int getAsIntValue ()
{
return m_aValue.intValue ();
}
/**
* @return The numeric value as a long value - no check for validity is
* performed
*/
public long getAsLongValue ()
{
return m_aValue.longValue ();
}
/**
* Set the unit type.
*
* @param eUnit
* The new unit to set. May not be null.
* @return this
* @since 3.7.3
*/
@Nonnull
public CSSSimpleValueWithUnit setUnit (@Nonnull final ECSSUnit eUnit)
{
m_eUnit = ValueEnforcer.notNull (eUnit, "Unit");
return this;
}
/**
* @return The CSS unit of this value. Never null.
*/
@Nonnull
public ECSSUnit getUnit ()
{
return m_eUnit;
}
/**
* @return The formatted string value of this item. Neither null
* nor empty.
* @since 3.7.3
*/
@Nonnull
@Nonempty
public String getFormatted ()
{
return m_eUnit.format (m_aValue);
}
/**
* Get a new object with the same unit but an added value.
*
* @param aDelta
* The delta to be added. May not be null.
* @return A new object. Never null.
* @since 3.7.3
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit add (@Nonnull final BigDecimal aDelta)
{
return new CSSSimpleValueWithUnit (m_aValue.add (aDelta), m_eUnit);
}
/**
* Get a new object with the same unit but an added value.
*
* @param dDelta
* The delta to be added.
* @return A new object. Never null.
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit add (final double dDelta)
{
return add (BigDecimal.valueOf (dDelta));
}
/**
* Get a new object with the same unit but a subtracted value.
*
* @param aDelta
* The delta to be subtracted. May not be null.
* @return A new object. Never null.
* @since 3.7.3
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit substract (@Nonnull final BigDecimal aDelta)
{
return new CSSSimpleValueWithUnit (m_aValue.subtract (aDelta), m_eUnit);
}
/**
* Get a new object with the same unit but a subtracted value.
*
* @param dDelta
* The delta to be subtracted.
* @return A new object. Never null.
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit substract (final double dDelta)
{
return substract (BigDecimal.valueOf (dDelta));
}
/**
* Get a new object with the same unit but a multiplied value.
*
* @param aValue
* The value to be multiply with this value. May not be
* null.
* @return A new object. Never null.
* @since 3.7.3
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit multiply (@Nonnull final BigDecimal aValue)
{
return new CSSSimpleValueWithUnit (m_aValue.multiply (aValue), m_eUnit);
}
/**
* Get a new object with the same unit but a multiplied value.
*
* @param dValue
* The value to be multiply with this value.
* @return A new object. Never null.
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit multiply (final double dValue)
{
return multiply (BigDecimal.valueOf (dValue));
}
/**
* Get a new object with the same unit but an divided value.
*
* @param aDivisor
* The divisor to use. May not be null.
* @param nScale
* The maximum fraction digits to use.
* @param eRoundingMode
* The rounding mode to use. May not be null.
* @return A new object. Never null.
* @since 3.7.3
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit divide (@Nonnull final BigDecimal aDivisor,
@Nonnegative final int nScale,
@Nonnull final RoundingMode eRoundingMode)
{
return new CSSSimpleValueWithUnit (m_aValue.divide (aDivisor, nScale, eRoundingMode), m_eUnit);
}
/**
* Get a new object with the same unit but an divided value. By default
* {@link CCSS#CSS_MAXIMUM_FRACTION_DIGITS} is used as scale and
* {@link RoundingMode#HALF_UP} is used as rounding mode.
*
* @param aDivisor
* The divisor to use. May not be null.
* @return A new object. Never null.
* @since 3.7.3
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit divide (@Nonnull final BigDecimal aDivisor)
{
return divide (aDivisor, CCSS.CSS_MAXIMUM_FRACTION_DIGITS, RoundingMode.HALF_UP);
}
/**
* Get a new object with the same unit but an divided value.
*
* @param dDivisor
* The divisor to use.
* @return A new object. Never null.
*/
@Nonnull
@CheckReturnValue
public CSSSimpleValueWithUnit divide (final double dDivisor)
{
return divide (BigDecimal.valueOf (dDivisor));
}
@Override
public boolean equals (final Object o)
{
if (o == this)
return true;
if (o == null || !getClass ().equals (o.getClass ()))
return false;
final CSSSimpleValueWithUnit rhs = (CSSSimpleValueWithUnit) o;
return EqualsUtils.equals (m_aValue, rhs.m_aValue) && m_eUnit.equals (rhs.m_eUnit);
}
@Override
public int hashCode ()
{
return new HashCodeGenerator (this).append (m_aValue).append (m_eUnit).getHashCode ();
}
@Override
public String toString ()
{
return new ToStringGenerator (this).append ("value", m_aValue).append ("unit", m_eUnit).toString ();
}
}