XprObjBarcode.java

/*
** Module   : XprObjBarcode.java
** Abstract : Class to represent barcode object feature for XPR content elements.
**
** Copyright (c) 2018, Golden Code Development Corporation.
**
** -#- -I- --Date-- ---------------------------------Description----------------------------------
** 001 EVL 20180515 Created initial version.
** 002 EVL 20180522 Adding more barcode types support.
** 003 EVL 20180603 Adding more barcode options to adjust for particular type.
*/
/*
** 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
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**     You may not represent yourself as Golden Code Development Corporation or FWD.
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**     Golden Code Development Corporation, FWD, or any author or contributor to
**     the covered work, without written authorization.
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**     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.reporting;

import java.util.*;

/**
 * The barcode object inside XPR file.
 */
public class XprObjBarcode
extends XprObjGraphics
{
   /** The type depending barcode object options in a form key, value map. */
   private Map<String, String> settings = new HashMap<String, String>();
   
   /** Barcode type names mapping XPR -&gt; Jasperreports */
   private static Map<String, String> typeMap = new HashMap<String, String>();
   
   /** Y scaling factor for barcode. */
   private int yScale = 1;
   
   /** X space distance to be blanked. */
   private int xBlank = 0;
   
   /** One time type mapping init. */
   static
   {  // XPR name, Jasperreport name
      typeMap.put("128A", "Code128A" );
      typeMap.put("128B", "Code128B" );
      typeMap.put("128C", "Code128C" );
      typeMap.put("2_5_interleaved", "Int2of5" );
      typeMap.put("2_5_industrial", "Std2of5" );
      typeMap.put("39", "Code39" );
      typeMap.put("39Extended", "Code39 (Extended)" );
      typeMap.put("Codabar", "Codabar" );
      typeMap.put("PostNet", "PostNet" );
      typeMap.put("EAN13", "EAN13" );
      typeMap.put("EAN128A", "EAN128" );
      typeMap.put("EAN128B", "EAN128" );
      typeMap.put("EAN128C", "EAN128" );
      typeMap.put("UCCEAN128", "UCC128" );
      typeMap.put("UPC_A", "UPCA" );
      typeMap.put("PDF417", "PDF417" );
   }
   
   /**
    * Create a new barcode XPR object.
    *
    * @param    rowStart
    *           The starting row value for barcode.
    * @param    colStart
    *           The starting column value for barcode.
    * @param    rowEnd
    *           The ending row value for barcode.
    * @param    colEnd
    *           The ending column value for barcode.
    * @param    tagValue
    *           The cumulative string representing the barcode features value.
    */
   public XprObjBarcode(double rowStart, double colStart, double rowEnd, double colEnd,
                        String tagValue)
   {
      super(XprObjBase.TYPE_BARCODE, rowStart, colStart, rowEnd, colEnd);
      initialize(tagValue);
   }
   
   /**
    * Returns the font name for text object.
    *
    * @param    paramName
    *           The name of the parameter to get the current value.
    *
    * @return   The parameter value for given parameter name or empty string if the parameter
    *           does not exist.
    */
   public String getParameterValue(String paramName)
   {
      String retVal = settings.get(paramName);
      
      return retVal != null ? retVal : "";
   }

   /**
    * Returns the Jasper report compatible type name.
    *
    * @return   The current barcode type or null if not supported.
    */
   public String getBarcodeType()
   {
      String val = getParameterValue("TYPE");
      
      return typeMap.get(val);
   }

   /**
    * Returns if the barcode needs check sum.
    *
    * @return   <code>TRUE</code> if checksum is required.
    */
   public boolean isChecksum()
   {
      String val = getParameterValue("CHECKSUM");
      
      return val.equals("TRUE");
   }

   /**
    * Returns if the barcode needs to show the text.
    *
    * @return   <code>TRUE</code> if SHOW attribute means to draw the text.
    */
   public boolean isShow()
   {
      String val = getParameterValue("SHOW");
      
      return val.isEmpty() ? false : !val.equals("NONE");
   }
   
   /**
    * Returns Y scaling factor to get required bar height.
    *
    * @return   Integer multiplier to adjust the visible bar height.
    */
   public int getYScale()
   {
      return yScale;
   }

   /**
    * Returns reserved blank space on both horizonatal sides in pixels.
    *
    * @return   Blank space in pixels.
    */
   public int getXBlank()
   {
      return xBlank;
   }
   
   /**
    * Returns the bar minimal width depending on type and requested dimensions.
    *
    * @param    dx
    *           The width of the barcode area.
    * @param    dy
    *           The height of the barcode area.
    *
    * @return   The barcode width, 1 or 2 depending on size proportions and barcode type.
    */
   public int getBarWidth(float dx, float dy)
   {
      int bw = 0;
      
      // return value depends on barcode type
      String type = getBarcodeType();
      if (type != null && !type.isEmpty())
      {
         // every type has its own specific
         if (type.equals("Code128B"))
         {
            bw = dx/dy < 5.0f ? 1 : 2;
         }
         else if (type.equals("Code39"))
         {
            bw = dx/dy < 10.0f ? 1 : 2;
         }
      }
      
      return bw;
   }

   /**
    * Returns the barcode height depending on type and requested dimensions.
    *
    * @param    dx
    *           The width of the barcode area.
    * @param    dy
    *           The height of the barcode area.
    *
    * @return   The barcode height depending on size proportions and barcode type.
    */
   public int getBarHeight(float dx, float dy)
   {
      int bh = (int)dy;
      
      // return value depends on barcode type
      String type = getBarcodeType();
      if (type != null && !type.isEmpty())
      {
         // every type has its own specific
         if (type.equals("Code128B"))
         {
            bh = dx/dy < 5.0f ? (int)dy : (int)(dx/8.0f);
         }
         else if (type.equals("Code39"))
         {
            bh = dx/dy < 10.0f ? (int)dy : (int)(dx/8.0f);
         }
      }
      
      return bh;
   }

   /**
    * Initialize internal barcode features depending on barcode type.
    *
    * @param    tagValue
    *           The cumulative string representing the barcode features option delimited by ','.
    */
   private void initialize(String tagValue)
   {
      if (tagValue != null && !tagValue.isEmpty())
      {
         String[] tagOptions = tagValue.split(",");
         for (int i = 0; i < tagOptions.length; i++)
         {
            if (tagOptions[i] != null && !tagOptions[i].isEmpty())
            {
               String[] option = tagOptions[i].split("=");
               if (option[0] != null && !option[0].isEmpty() && option[1] != null)
               {
                  // make the option name be case insensitive
                  settings.put(option[0].toUpperCase(), option[1]);
               }
            }
         }
      }
      // set up some config depending on barcode type
      String type = getBarcodeType();
      if (type != null && !type.isEmpty())
      {
         // every type has its own specific
         if (type.equals("Code128B"))
         {
            yScale = 2;
            xBlank = 10;
         }
         else if (type.equals("Code39"))
         {
            yScale = 2;
         }
      }
   }
}