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Package containing reusable model for Sejda.
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/*
 * Copyright 2015 by Edi Weissmann ([email protected])
 *
 * This file is part of the Sejda source code
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */
package org.sejda.model.input;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.sejda.model.rotation.Rotation;

/**
 * A page and the associated file, referenced by its index in the sources list.
 * Supports specifying a page rotation.
 */
public class FileIndexAndPage {
    
    private int fileIndex;
    private int page;
    private Rotation rotation;

    public FileIndexAndPage(int fileIndex, int page) {
        this(fileIndex, page, Rotation.DEGREES_0);
    }

    public FileIndexAndPage(int fileIndex, int page, Rotation rotation) {
        this.fileIndex = fileIndex;
        this.page = page;
        this.rotation = rotation;
    }

    public int getFileIndex() {
        return fileIndex;
    }

    public int getPage() {
        return page;
    }

    public Rotation getRotation() {
        return rotation;
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(this.fileIndex).append(this.page).append(rotation).toHashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final FileIndexAndPage other = (FileIndexAndPage) obj;
        return new EqualsBuilder().append(this.fileIndex, other.fileIndex).append(this.page, other.page)
                .append(this.rotation, other.rotation)
                .isEquals();
    }

    @Override
    public String toString() {
        return String.format("%d:%d:%d", fileIndex, page, rotation.getDegrees());
    }

    public boolean isAddBlankPage() {
        return page < 0 || fileIndex < 0;
    }
}