ResolutionSyntax.java :  » Apache-Harmony-Java-SE » javax-package » javax » print » attribute » Java Open Source

/*
 *  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 javax.print.attribute;

import java.io.Serializable;

public abstract class ResolutionSyntax implements Cloneable, Serializable {
    private static final long serialVersionUID = 2706743076526672017L;

    public static final int DPI = 100;

    public static final int DPCM = 254;

    private final int crossFeedRes;

    private final int feedRes;

    public ResolutionSyntax(int crossFeedResolution, int feedResolution, int units) {
        if (crossFeedResolution < 1) {
            throw new IllegalArgumentException("CrossFeedResolution " + "is less than 1");
        }
        if (feedResolution < 1) {
            throw new IllegalArgumentException("FeedResolution is less than 1");
        }
        if (units < 1) {
            throw new IllegalArgumentException("Units is less than 1");
        }
        crossFeedRes = crossFeedResolution * units;
        feedRes = feedResolution * units;
    }

    @Override
    public boolean equals(Object object) {
        if ((object instanceof ResolutionSyntax)
                && crossFeedRes == ((ResolutionSyntax) object).crossFeedRes
                && feedRes == ((ResolutionSyntax) object).feedRes) {
            return true;
        }
        return false;
    }

    public int getCrossFeedResolution(int units) {
        if (units < 1) {
            throw new IllegalArgumentException("units is less than 1");
        }
        return Math.round(((float) crossFeedRes) / units);
    }

    protected int getCrossFeedResolutionDphi() {
        return crossFeedRes;
    }

    public int getFeedResolution(int units) {
        if (units < 1) {
            throw new IllegalArgumentException("units is less than 1");
        }
        return Math.round(((float) feedRes) / units);
    }

    protected int getFeedResolutionDphi() {
        return feedRes;
    }

    public int[] getResolution(int units) {
        return new int[] { getCrossFeedResolution(units), getFeedResolution(units) };
    }

    @Override
    public int hashCode() {
        return (crossFeedRes | (feedRes << 16));
    }

    public boolean lessThanOrEquals(ResolutionSyntax resolutionSyntax) {
        if (crossFeedRes <= resolutionSyntax.crossFeedRes
                && feedRes <= resolutionSyntax.feedRes) {
            return true;
        }
        return false;
    }

    @Override
    public String toString() {
        return (crossFeedRes + "x" + feedRes + " dphi");
    }

    public String toString(int units, String unitsName) {
        if (unitsName == null) {
            unitsName = "";
        }
        return (getCrossFeedResolution(units) + "x" + getFeedResolution(units) + " " + unitsName);
    }
}