5a2a287752
* *
* partial sync with the 3.4 fork codebase. These are the things
synces for the most part:
- copyright headers
- grammar/typos in comments and some readmes
- comment/whitespace/decorations
- variable scoping in C files
- DO CASE/SWITCH and some other alternate syntax usage
- minimal amount of human readable text in strings
- minor code updates
- HB_TRACE() void * casts for pointers and few other changes to
avoid C compiler warnings
- various other, minor code cleanups
- only Harbour/C code/headers were touched in src, utils, contrib,
include. No 3rd party code, no make files, and with just a few
exceptions, no 'tests' code was touched.
- certain components were not touched were 3.4 diverged too much
already, like f.e. hbmk2, hbssl, hbcurl, hbexpat
- the goal was that no actual program logic should be altered by
these changes. Except some possible minor exceptions, any such
change is probably a bug in this patch.
It's a massive patch, if you find anything broken after it, please
open an Issue with the details. Build test was done on macOS.
The goal is make it easier to see what actual code/logic was changed
in 3.4 compared to 3.2 and to make patches easier to apply in both
ways.
662 lines
17 KiB
Plaintext
662 lines
17 KiB
Plaintext
/*
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* CodeBar engine library class
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*
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* Copyright 2005 Laverson Espindola <laverson.espindola@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file LICENSE.txt. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbclass.ch"
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#define CODEC 100
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#define CODEB 101
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#define CODEA 102
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#define FNC1 103
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#define STARTA 104
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#define STARTB 105
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#define STARTC 106
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CREATE CLASS GDBarCode INHERIT GDBar
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VAR nType
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// EAN-13 ISBN
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METHOD New( nTypeCode ) CONSTRUCTOR
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METHOD Draw( cText )
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METHOD Draw13( cText )
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METHOD DrawText13()
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// EAN-8
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METHOD Draw8( cText )
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METHOD DrawText8()
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// EAN-128
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METHOD Draw128( cText, cModeCode )
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// I25
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METHOD DrawI25( cText )
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METHOD GenCodei25()
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// Utils
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METHOD FindCharCode( cString, cChar )
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METHOD MixCode( value )
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METHOD Findcode( uval )
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ENDCLASS
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METHOD New( nTypeCode ) CLASS GDBarCode
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LOCAL ii
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IF nTypeCode == 13 .OR. ;
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nTypeCode == 8
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::LeftHand_Odd := { "0011001", "0010011", "0111101", "0100011", "0110001", "0101111", "0111011", "0110111", "0001011", "0001101" }
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::LeftHand_Even := { "0110011", "0011011", "0100001", "0011101", "0111001", "0000101", "0010001", "0001001", "0010111", "0100111" }
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::Right_Hand := { "1100110", "1101100", "1000010", "1011100", "1001110", "1010000", "1000100", "1001000", "1110100", "1110010" }
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::Parity := { "OOEOEE", "OOEEOE", "OOEEEO", "OEOOEE", "OEEOOE", "OEEEOO", "OEOEOE", "OEOEEO", "OEEOEO", "OOOOOO" }
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::keys := { "1", "2", "3", "4", "5", "6", "7", "8", "9", "0" }
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ELSEIF nTypeCode == 128
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::aCode := { ;
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"212222", "222122", "222221", "121223", "121322", "131222", "122213", "122312", "132212", "221213", ;
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"221312", "231212", "112232", "122132", "122231", "113222", "123122", "123221", "223211", "221132", ;
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"221231", "213212", "223112", "312131", "311222", "321122", "321221", "312212", "322112", "322211", ;
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"212123", "212321", "232121", "111323", "131123", "131321", "112313", "132113", "132311", "211313", ;
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"231113", "231311", "112133", "112331", "132131", "113123", "113321", "133121", "313121", "211331", ;
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"231131", "213113", "213311", "213131", "311123", "311321", "331121", "312113", "312311", "332111", ;
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"314111", "221411", "431111", "111224", "111422", "121124", "121421", "141122", "141221", "112214", ;
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"112412", "122114", "122411", "142112", "142211", "241211", "221114", "213111", "241112", "134111", ;
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"111242", "121142", "121241", "114212", "124112", "124211", "411212", "421112", "421211", "212141", ;
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"214121", "412121", "111143", "111341", "131141", "114113", "114311", "411113", "411311", "113141", ;
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"114131", "311141", "411131", "211412", "211214", "211232", "2331112";
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}
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::KeysmodeA := ' !"#$%&\()*+-.,/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_'
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::KeysmodeB := ' !"#$%&\()*+-.,/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~'
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::KeysModeC := Array( 99 )
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FOR ii := 1 TO 99
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::KeysmodeC[ ii ] := StrZero( ii, 2 )
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NEXT
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ELSEIF nTypeCode == 25
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::keys := { "1", "2", "3", "4", "5", "6", "7", "8", "9", "0" }
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::aCode := { ;
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"10001", ; // 1 digit
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"01001", ; // 2 digit
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"11000", ; // 3 digit
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"00101", ; // 4 digit
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"10100", ; // 5 digit
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"01100", ; // 6 digit
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"00011", ; // 7 digit
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"10010", ; // 8 digit
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"01010", ; // 9 digit
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"00110", ; // 0 digit
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"10000", ; // pre-amble
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"100" } // post-amble
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ELSE
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::DrawError( "Invalid type to barcode." )
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RETURN NIL
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ENDIF
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::nType := nTypeCode
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RETURN Self
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METHOD Draw( cText ) CLASS GDBarCode
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IF ::nType == 13
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::Draw13( cText )
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ELSEIF ::nType == 8
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::Draw8( cText )
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ELSEIF ::nType == 128
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::Draw128( cText )
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ELSEIF ::nType == 25
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::DrawI25( cText )
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ENDIF
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RETURN NIL
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METHOD Draw13( cText ) CLASS GDBarCode
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LOCAL lError := .F.
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LOCAL nChkSum := 0
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LOCAL nChk := 0
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LOCAL ii, jj
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LOCAL xParity
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::Settext( cText )
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// Valid characters
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IF ! ::CheckCode()
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lError := .T.
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ENDIF
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IF ! lError
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IF ::book .AND. Len( ::text ) != 10
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::DrawError( "Must contains 10 chars if ISBN is true." )
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lError := .T.
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ENDIF
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// book, we changed the code to the right
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IF ::book .AND. Len( ::text ) == 10
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::text := "978" + SubStr( ::text, 1, Len( ::text ) - 1 )
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ENDIF
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// contain only 12 characters ?
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IF Len( ::text ) != 12
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::DrawError( "Must contains 12 chars, the 13th digit is automatically added." )
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lError := .T.
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ENDIF
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IF ! lError
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// If we have to write text, we moved the barcode to the right to have space to put digit
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::positionX := iif( ::textfont == 0, 0, 10 )
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xParity := ::Parity[ Val( SubStr( ::text, 1, 1 ) ) ]
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// First Bar
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::positionX := 10
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::maxHeight += 9
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::DrawSingleBar( "101" )
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// start code
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::maxHeight -= 9
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FOR ii := 1 TO Len( ::text )
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// Calculate check digit
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IF Mod( Len( ::text ) + 1 - ii, 2 ) == 0
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nChkSum += Int( Val( SubStr( ::text, ii, 1 ) ) )
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ELSE
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nChkSum += Int( Val( SubStr( ::text, ii, 1 ) ) ) * 3
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ENDIF
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// Now, the bar of the middle
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IF ii == 8
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::positionX += 1
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::maxHeight += 9
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::DrawSingleBar( "101" )
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::maxHeight -= 9
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::positionX += 1
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ENDIF
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jj := Val( SubStr( ::text, ii, 1 ) )
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IF jj == 0
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jj := 10
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ENDIF
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IF ii > 1 .AND. ii < 8
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::DrawSingleBar( iif( SubStr( xParity, ii - 1, 1 ) == "E", ;
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::LeftHand_Even[ jj ], ;
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::LeftHand_Odd[ jj ] ) )
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ELSEIF ii > 1 .AND. ii >= 8
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::DrawSingleBar( ::Right_Hand[ jj ] )
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ENDIF
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NEXT
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jj := Mod( nChkSum, 10 )
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IF jj != 0
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nChk := 10 - jj
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ENDIF
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cText += Str( nChk, 1 )
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IF nChk == 0
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nChk := 10
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ENDIF
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::DrawSingleBar( ::Right_Hand[ nChk ] )
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// Now, finish bar
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::maxHeight += 9
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::DrawSingleBar( "101" )
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::lastX := ::positionX
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::lastY := ::maxHeight
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// Draw Text
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IF ::lDrawValue
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::Settext( cText )
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::DrawText13()
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ENDIF
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ENDIF
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ENDIF
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RETURN NIL
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METHOD DrawText13() CLASS GDBarCode
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IF ::textfont != 0
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::Say( 2, ::maxHeight - ( ::GetFontHeight() / 2 ), SubStr( ::text, 1, 1 ), ::FillColor )
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::Say( ( 10 + ( 3 * ::res + 48 * ::res ) / 2 ) - ( ::GetFontWidth() * ( 6 / 2 ) ), ::maxHeight + 1, SubStr( ::text, 2, 6 ), ::FillColor )
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::Say( 10 + 46 * ::res + ( 3 * ::res + 46 * ::res ) / 2 - ::GetFontWidth() * ( 6 / 2 ), ::maxHeight + 1, SubStr( ::text, 8, 6 ), ::FillColor )
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ENDIF
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::lastY := ::maxHeight + ::GetFontHeight()
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RETURN NIL
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METHOD Draw8( cText ) CLASS GDBarCode
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LOCAL lError := .F.
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LOCAL ii, jj
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#if 0
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LOCAL xParity
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#endif
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LOCAL nChkSum := 0
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LOCAL nChk := 0
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::Settext( cText )
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// Valid characters
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IF ! ::CheckCode()
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lError := .T.
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ENDIF
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IF ! lError
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::positionX := iif( ::textfont == 0, 0, 10 )
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#if 0
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xParity := ::Parity[ 7 ]
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#endif
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// First Bar
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::positionX := 10
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::maxHeight += 9
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::DrawSingleBar( "101" )
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// Start Code
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::maxHeight -= 9
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FOR ii := 1 TO Len( ::text )
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IF Mod( Len( ::text ) + 1 - ii, 2 ) == 0
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nChkSum += Int( Val( SubStr( ::text, ii, 1 ) ) )
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ELSE
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nChkSum += Int( Val( SubStr( ::text, ii, 1 ) ) ) * 3
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ENDIF
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IF ii == 5
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::positionX += 1
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::maxHeight += 9
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::DrawSingleBar( "01010" )
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::maxHeight -= 9
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::positionX += 1
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ENDIF
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jj := Val( SubStr( ::text, ii, 1 ) )
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IF jj == 0
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jj := 10
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ENDIF
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IF ii < 5
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::DrawSingleBar( ::LeftHand_Odd[ jj ] )
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ELSEIF ii >= 5
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::DrawSingleBar( ::Right_Hand[ jj ] )
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ENDIF
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NEXT
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jj := Mod( nChkSum, 10 )
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IF jj != 0
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nChk := 10 - jj
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ENDIF
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::DrawSingleBar( ::Right_Hand[ nChk ] )
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// Now, finish bar
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::maxHeight += 9
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::DrawSingleBar( "101" )
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::lastX := ::positionX
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::lastY := ::maxHeight
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cText += Str( nChk, 1 )
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// Draw text
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IF ::lDrawValue
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::Settext( cText )
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::DrawText8()
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ENDIF
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ENDIF
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RETURN NIL
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METHOD DrawText8() CLASS GDBarCode
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::say( 10 + ( ( 3 * ::res + 34 * ::res ) / 2 - ::GetFontWidth() * ( 4 / 2 ) ), ::maxHeight + 1, SubStr( ::text, 1, 4 ), ::fillcolor )
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::say( 10 + ( 32 * ::res + ( 3 * ::res + 32 * ::res ) / 2 - ::GetFontWidth() * ( 4 / 2 ) ), ::maxHeight + 1, SubStr( ::text, 5, 4 ), ::fillcolor )
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::lastY := ::maxHeight + ::GetFontHeight()
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RETURN NIL
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METHOD FindCharCode( cString, cChar ) CLASS GDBarCode
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LOCAL i
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LOCAL nC := 0
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LOCAL nret := 0
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FOR i := 1 TO Len( cString )
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IF SubStr( cString, i, 1 ) == cChar
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++nC
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nRet := nC
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EXIT
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ENDIF
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++nC
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NEXT
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RETURN nret
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METHOD Draw128( cText, cModeCode ) CLASS GDBarCode
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LOCAL cChar, nValChar, n, i
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LOCAL nSum := 0
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LOCAL nC := 0
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LOCAL nPos
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LOCAL lTypeCodeC := .F.
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LOCAL lTypeCodeA := .F.
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LOCAL lError := .F.
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LOCAL cBarCode := ""
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LOCAL cConc := ""
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hb_default( @cModeCode, "B" )
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::settext( cText )
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IF ! Empty( cModeCode )
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IF HB_ISSTRING( cModeCode ) .AND. Upper( cModeCode ) $ "ABC"
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cModeCode := Upper( cModeCode )
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ELSE
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::DrawError( "Code 128 Modes are A, B or C character values." )
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lError := .T.
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ENDIF
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ENDIF
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// Checking if all chars are allowed
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FOR i := 1 TO Len( ::text )
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IF cModeCode == "C"
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nPos := AScan( ::KeysmodeC, {| x | x == SubStr( ::Text, i, 1 ) + SubStr( ::Text, i + 1, 1 ) } )
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IF nPos == 0
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::DrawError( "With Code C, you must provide always pair of two integers. Character " + SubStr( ::text, i, 1 ) + SubStr( ::text, i + 1, 1 ) + " not allowed." )
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lError := .T.
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ENDIF
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ELSEIF cModeCode == "B"
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IF ::FindCharCode( ::KeysmodeB, SubStr( ::Text, i, 1 ) ) == 0
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::DrawError( "Character " + SubStr( ::text, i, 1 ) + " not allowed." )
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lError := .T.
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ENDIF
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ELSEIF cModeCode == "A"
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IF ::FindCharCode( ::KeysmodeA, SubStr( ::text, i, 1 ) ) == 0
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::DrawError( "Character " + SubStr( ::text, i, 1 ) + " not allowed." )
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lError := .T.
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ENDIF
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ENDIF
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NEXT
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IF ! lError
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IF Empty( cModeCode )
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IF Str( Val( ::text ), Len( ::text ) ) == ::text
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lTypeCodeC := .T.
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cConc := ::aCode[ STARTC ]
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nSum := STARTB
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ELSE
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FOR n := 1 TO Len( ::text )
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nC += iif( SubStr( ::text, n, 1 ) > 31, 1, 0 )
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NEXT
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IF nC < Len( ::text ) / 2
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lTypeCodeA := .T.
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cConc := ::aCode[ STARTA ]
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nSum := FNC1
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ELSE
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cConc := ::aCode[ STARTB ]
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nSum := STARTA
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ENDIF
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ENDIF
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ELSE
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IF cModeCode == "C"
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lTypeCodeC := .T.
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cConc := ::aCode[ STARTC ]
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nSum := STARTB
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ELSEIF cModeCode == "A"
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lTypeCodeA := .T.
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cConc := ::aCode[ STARTB ]
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nSum := FNC1
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ELSE
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cConc := ::aCode[ STARTB ]
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nSum := STARTA
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ENDIF
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ENDIF
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nC := 0
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FOR n := 1 TO Len( ::text )
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++nC
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cChar := SubStr( ::text, n, 1 )
|
|
|
|
IF lTypeCodeC
|
|
|
|
IF Len( ::text ) == n
|
|
cConc += ::aCode[ CODEB ]
|
|
nValChar := Asc( cChar ) - 31
|
|
ELSE
|
|
nValChar := Val( SubStr( ::text, n, 2 ) ) + 1
|
|
++n
|
|
ENDIF
|
|
|
|
ELSEIF lTypeCodeA
|
|
|
|
IF cChar > "_"
|
|
cConc += ::aCode[ CODEB ]
|
|
nValChar := Asc( cChar ) - 31
|
|
ELSEIF cChar <= " "
|
|
nValChar := Asc( cChar ) + 64
|
|
ELSE
|
|
nValChar := Asc( cChar ) - 31
|
|
ENDIF
|
|
|
|
ELSE
|
|
|
|
IF cChar < " "
|
|
cConc += ::aCode[ CODEA ]
|
|
nValChar := Asc( cChar ) + 64
|
|
ELSE
|
|
nValChar := Asc( cChar ) - 31
|
|
ENDIF
|
|
|
|
ENDIF
|
|
nSum += ( nValChar - 1 ) * nC
|
|
cConc += ::aCode[ nValChar ]
|
|
|
|
NEXT
|
|
|
|
nSum := nSum % 103 + 1
|
|
cConc += ::aCode[ nSum ] + ::aCode[ 107 ]
|
|
|
|
FOR n := 1 TO Len( cConc ) STEP 2
|
|
cBarCode += Replicate( "1", Val( SubStr( cConc, n, 1 ) ) )
|
|
cBarCode += Replicate( "0", Val( SubStr( cConc, n + 1, 1 ) ) )
|
|
NEXT
|
|
|
|
::DrawSingleBar( cBarCode )
|
|
|
|
::lastX := ::positionX
|
|
::lastY := ::maxHeight
|
|
|
|
// Draw Text
|
|
IF ::lDrawValue
|
|
::Settext( cText )
|
|
::DrawText()
|
|
ENDIF
|
|
|
|
ENDIF
|
|
|
|
RETURN NIL
|
|
|
|
METHOD DrawI25( cText ) CLASS GDBarCode
|
|
|
|
::settext( cText )
|
|
|
|
::GenCodei25()
|
|
|
|
RETURN NIL
|
|
|
|
METHOD GenCodei25() CLASS GDBarCode
|
|
|
|
LOCAL lError := .F.
|
|
LOCAL bc_string
|
|
|
|
IF ( Len( ::text ) % 2 ) != 0
|
|
::DrawError( "Invalid barcode lenght" )
|
|
lError := .T.
|
|
ENDIF
|
|
|
|
IF ! lError
|
|
|
|
bc_string := Upper( ::text )
|
|
|
|
// Encode itemId to I25 barcode standard.
|
|
|
|
bc_string := ::MixCode( bc_string )
|
|
|
|
// Adding Start and Stop Pattern
|
|
|
|
::DrawSingleI25( ::acode[ 11 ] + bc_string + ::acode[ 12 ] )
|
|
|
|
::lastY := ::maxHeight
|
|
|
|
// Draw Text
|
|
IF ::lDrawValue
|
|
::DrawText( .T. )
|
|
ENDIF
|
|
ENDIF
|
|
|
|
RETURN NIL
|
|
|
|
/*
|
|
It makes mixe of the value to be codified by the Bar code I25
|
|
*/
|
|
|
|
METHOD MixCode( value ) CLASS GDBarCode
|
|
|
|
LOCAL l, i, k
|
|
LOCAL s
|
|
LOCAL bar_string := ""
|
|
LOCAL cFirst
|
|
LOCAL cNext
|
|
|
|
l := Len( value )
|
|
|
|
IF ( l % 2 ) != 0
|
|
::DrawError( "Code cannot be intercalated: Invalid length (mix)" )
|
|
ELSE
|
|
|
|
i := 1
|
|
s := ""
|
|
|
|
DO WHILE i < l
|
|
|
|
cFirst := ::Findcode( SubStr( value, i, 1 ) )
|
|
cNext := ::Findcode( SubStr( value, i + 1, 1 ) )
|
|
|
|
// Mix of the codes
|
|
// NNNNWNNWWW
|
|
// N N N W W
|
|
FOR k := 1 TO 5
|
|
s += SubStr( cFirst, k, 1 ) + SubStr( cNext, k, 1 )
|
|
NEXT
|
|
|
|
i += 2
|
|
|
|
ENDDO
|
|
|
|
bar_string := s
|
|
|
|
ENDIF
|
|
|
|
RETURN bar_string
|
|
|
|
METHOD Findcode( uVal ) CLASS GDBarCode
|
|
|
|
RETURN ::acode[ AScan( ::keys, {| x | Left( x, 1 ) == uVal } ) ]
|