/*
 * $Id$
 *
 *
 * Copyright 1999-2003 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.fop.fo.properties;

import java.util.HashMap;

import org.apache.fop.datatypes.EnumType;
import org.apache.fop.datatypes.Ints;
import org.apache.fop.datatypes.PropertyValue;
import org.apache.fop.fo.PropNames;
import org.apache.fop.fo.expr.PropertyException;

public class WritingMode extends Property  {
    public static final int dataTypes = ENUM | INHERIT;

    public int getDataTypes() {
        return dataTypes;
    }

    public static final int traitMapping = NEW_TRAIT;

    public int getTraitMapping() {
        return traitMapping;
    }

    public static final int initialValueType = ENUM_IT;

    public int getInitialValueType() {
        return initialValueType;
    }

    public static final int LR_TB = 1;
    public static final int RL_TB = 2;
    public static final int TB_RL = 3;
    public static final int LR = 4;
    public static final int RL = 5;
    public static final int TB = 6;
    public PropertyValue getInitialValue(int property)
        throws PropertyException
    {
        return new EnumType (PropNames.WRITING_MODE, LR_TB);
    }
    public static final int inherited = COMPUTED;

    public int getInherited() {
        return inherited;
    }


    private static final String[] rwEnums = {
        null
        ,"lr-tb"
        ,"rl-tb"
        ,"tb-rl"
        ,"lr"
        ,"rl"
        ,"tb"
    };
    private static final HashMap rwEnumHash;
    static {
        rwEnumHash = new HashMap((int)(rwEnums.length / 0.75) + 1);
        for (int i = 1; i < rwEnums.length; i++ ) {
            rwEnumHash.put(rwEnums[i],
                                Ints.consts.get(i));
        }
    }
    public int getEnumIndex(String enumval)
        throws PropertyException
    {
        Integer ii = (Integer)(rwEnumHash.get(enumval));
        if (ii == null)
            throw new PropertyException("Unknown ENUM value: " + enumval);
        return ii.intValue();
    }
    public String getEnumText(int index)
        throws PropertyException
    {
        if (index < 1 || index >= rwEnums.length)
            throw new PropertyException("index out of range: " + index);
        return rwEnums[index];
    }
}

