# PDFPageSetup.java

    /*
    ** Module   : PDFPageSetup.java
    ** Abstract : Captures PDF options for PDF printing.
    **
    ** Copyright (c) 2017, Golden Code Development Corporation.
    **
    ** -#- -I- --Date-- ---------------------------------Description----------------------------------
    ** 001 HC  20171024 Initial version.
    */
    /*
    ** 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 Affero General Public License for more details.
    **
    ** You may find a copy of the GNU Affero GPL version 3 at the following
    ** location: https://www.gnu.org/licenses/agpl-3.0.en.html
    **
    ** Additional terms under GNU Affero GPL version 3 section 7:
    **
    **   Under Section 7 of the GNU Affero GPL version 3, the following additional
    **   terms apply to the works covered under the License.  These additional terms
    **   are non-permissive additional terms allowed under Section 7 of the GNU
    **   Affero GPL version 3 and may not be removed by you.
    **
    **   0. Attribution Requirement.
    **
    **     You must preserve all legal notices or author attributions in the covered
    **     work or Appropriate Legal Notices displayed by works containing the covered
    **     work.  You may not remove from the covered work any author or developer
    **     credit already included within the covered work.
    **
    **   1. No License To Use Trademarks.
    **
    **     This license does not grant any license or rights to use the trademarks
    **     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
    **     of Golden Code Development Corporation. You are not authorized to use the
    **     name Golden Code, FWD, or the names of any author or contributor, for
    **     publicity purposes without written authorization.
    **
    **   2. No Misrepresentation of Affiliation.
    **
    **     You may not represent yourself as Golden Code Development Corporation or FWD.
    **
    **     You may not represent yourself for publicity purposes as associated with
    **     Golden Code Development Corporation, FWD, or any author or contributor to
    **     the covered work, without written authorization.
    **
    **   3. No Misrepresentation of Source or Origin.
    **
    **     You may not represent the covered work as solely your work.  All modified
    **     versions of the covered work must be marked in a reasonable way to make it
    **     clear that the modified work is not originating from Golden Code Development
    **     Corporation or FWD.  All modified versions must contain the notices of
    **     attribution required in this license.
    */
    package com.goldencode.p2j.util;

    import org.apache.pdfbox.pdmodel.common.*;

    /**
     * Captures PDF options for PDF printing.
     */
    public class PDFPageSetup
    {
       /** The conversion from PDF user-space points to millimeters. */
       private static final float POINTS_PER_MM = 2.8346457F;

       /** Page size in PDF user-space points. */
       public PDRectangle pageSize;

       /** Top page margin in millimeters. */
       public float topMargin;

       /** Left page margin in millimeters. */
       public float leftMargin;

       /** Bottom page margin in millimeters. */
       public float bottomMargin;

       /** Right page margin in millimeters. */
       public float rightMargin;

       /**
        * Constructs new instance from {@link PrintOptions}.
        *
        * @param   options
        *          An instance of {@link PrintOptions}.
        *
        * @return  A new instance of this class.
        */
       public static PDFPageSetup fromPrintOptions(PrintOptions options)
       {
          PDRectangle size;
          switch (options.pageSize)
          {
             case LETTER:
                size = PDRectangle.LETTER;
                break;
             case LEGAL:
                size = PDRectangle.LEGAL;
                break;
             case A0:
                size = PDRectangle.A0;
                break;
             case A1:
                size = PDRectangle.A1;
                break;
             case A2:
                size = PDRectangle.A2;
                break;
             case A3:
                size = PDRectangle.A3;
                break;
             case A5:
                size = PDRectangle.A5;
                break;
             case A6:
                size = PDRectangle.A6;
                break;
             default:
                size = PDRectangle.A4;
          }

          if (options.pageOrientation == PrintOptions.PageOrientation.LANDSCAPE)
          {
             size = new PDRectangle(size.getHeight(), size.getWidth());
          }

          // convert margins from millimeters to user-space points
          float topMargin = options.marginTop * POINTS_PER_MM;
          float leftMargin = options.marginLeft * POINTS_PER_MM;
          float bottomMargin = options.marginBottom * POINTS_PER_MM;
          float rightMargin = options.marginRight * POINTS_PER_MM;

          return new PDFPageSetup(size, topMargin, leftMargin, bottomMargin, rightMargin);
       }

       /**
        * Ctor.
        *
        * @param   pageSize
        *          Page size.
        * @param   topMargin
        *          Top margin.
        * @param   leftMargin
        *          Left margin.
        * @param   bottomMargin
        *          Bottom margin.
        * @param   rightMargin
        *          Right margin.
        */
       public PDFPageSetup(PDRectangle pageSize,
                           float topMargin,
                           float leftMargin,
                           float bottomMargin,
                           float rightMargin)
       {
          this.pageSize = pageSize;
          this.topMargin = topMargin;
          this.leftMargin = leftMargin;
          this.bottomMargin = bottomMargin;
          this.rightMargin = rightMargin;
       }
    }