Files
harbour-core/contrib/hbzebra/tests/gtgfx.prg
Przemysław Czerpak 188c206440 2025-08-22 12:00 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
* contrib/hbzebra/coredraw.c
  * contrib/hbzebra/hbzebra.hbx
    + added new PRG function:
         hb_zebra_getsize( <hZebra>, @<nWidth>, @<nHeight> ) -> <nError>
      it calculates size in points of the created barcode and returns 0 on
      success or error code

  + contrib/hbzebra/tests/gtgfx.prg
    + borrowed from Viktor's fork, thanks
      2014-09-18 22:32 UTC+0200 Viktor Szakats (vszakats users.noreply.github.com)
       + added on-screen barcode example, created by elch
         (with some minor cleanups)
         https://groups.google.com/d/msg/harbour-users/_Wht51JZGgE/ZXyvaJNH9ggJ
         feb4fc0e20

  * contrib/sddoci/core.c
    * map ostrlen() to strlen() or wcslen() in OCI_CHARSET_UNICODE builds
    ; TOFIX: this library uses wchar_t for unicode strings, it means that
             in *nixes where wchar_t is 32-bit integer mapping to Harbour
             HB_WCHAR is wrong and has to be fixed

  * include/hbapifs.h
  * src/harbour.def
  * src/rtl/filebuf.c
   + added new C function:
         HB_BOOL hb_fileSave( const char * pszFileName,
                              const void * buffer, HB_SIZE nSize );

  * include/harbour.hbx
  * src/harbour.def
  * src/rtl/vfile.c
    + added new PRG function:
         hb_vfSave(  <cFileName>, <cFileBody> ) --> <lOK>

  * src/rtl/vfile.c
    * set FError() code in hb_vfLoad()
2025-08-22 12:00:07 +02:00

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/* Copyright 2010 Viktor Szakats */
/* Adapted to OS independent hb_gfxFilledRect() 2014 elch
Choose a graphics-capable GT at link time.
Notice that in GTWVT graphics is not persistent */
#require "hbzebra"
#include "hbgtinfo.ch"
#include "hbgfx.ch"
#define _SCALE_ 2 /* modifies y: font height, x: pixel */
PROCEDURE Main()
SetMode( 21 * _SCALE_, 80 )
SetColor( "B*/W" ) /* blink attribute for light white background in graphic GT */
CLS
DrawBarcode( 1, 32, 1, "EAN13", "477012345678" )
DrawBarcode( 2, 32, 1, "EAN8", "1234567" )
DrawBarcode( 3, 32, 1, "UPCA", "01234567891" )
DrawBarcode( 4, 32, 1, "UPCE", "123456" )
DrawBarcode( 5, 32, 1, "CODE39", "ABC123" )
DrawBarcode( 6, 32, 1, "CODE39", "ABC123", HB_ZEBRA_FLAG_CHECKSUM + HB_ZEBRA_FLAG_WIDE3 )
DrawBarcode( 7, 32, 1, "ITF", "12345678901", HB_ZEBRA_FLAG_CHECKSUM )
DrawBarcode( 8, 32, 1, "MSI", "1234567", HB_ZEBRA_FLAG_CHECKSUM )
DrawBarcode( 9, 32, 1, "CODABAR", "40156", HB_ZEBRA_FLAG_WIDE3 )
DrawBarcode( 10, 32, 1, "CODE93", "ABC-123" )
DrawBarcode( 11, 32, 1, "CODE11", "1234567890", HB_ZEBRA_FLAG_CHECKSUM + HB_ZEBRA_FLAG_WIDE3 )
DrawBarcode( 12, 32, 1, "CODE128", "Code 128" )
DrawBarcode( 13, 32, 1, "PDF417", "Hello, World of Harbour!!! It's 2D barcode PDF417 :)" )
DrawBarcode( 17, 32, 1, "DATAMATRIX", "Hello, World of Harbour!!! It's 2D barcode DataMatrix :)" )
DrawBarcode( 19, 32, 1, "QRCODE", "https://en.wikipedia.org/wiki/QR_Code" )
WAIT
RETURN
STATIC PROCEDURE DrawBarcode( nY, nX, nLineWidth, cType, cCode, nFlags )
LOCAL hZebra, nLineHeight, cTxt, nYPixel
LOCAL nColor := hb_gfxMakeColor( 0, 0, 0 ) /* RGB black */
IF nLineWidth < 1 /* smaller as one pixel impossible */
nLineWidth := 1
ENDIF
SWITCH cType
CASE "EAN13" ; hZebra := hb_zebra_create_ean13( cCode, nFlags ) ; EXIT
CASE "EAN8" ; hZebra := hb_zebra_create_ean8( cCode, nFlags ) ; EXIT
CASE "UPCA" ; hZebra := hb_zebra_create_upca( cCode, nFlags ) ; EXIT
CASE "UPCE" ; hZebra := hb_zebra_create_upce( cCode, nFlags ) ; EXIT
CASE "CODE39" ; hZebra := hb_zebra_create_code39( cCode, nFlags ) ; EXIT
CASE "ITF" ; hZebra := hb_zebra_create_itf( cCode, nFlags ) ; EXIT
CASE "MSI" ; hZebra := hb_zebra_create_msi( cCode, nFlags ) ; EXIT
CASE "CODABAR" ; hZebra := hb_zebra_create_codabar( cCode, nFlags ) ; EXIT
CASE "CODE93" ; hZebra := hb_zebra_create_code93( cCode, nFlags ) ; EXIT
CASE "CODE11" ; hZebra := hb_zebra_create_code11( cCode, nFlags ) ; EXIT
CASE "CODE128" ; hZebra := hb_zebra_create_code128( cCode, nFlags ) ; EXIT
CASE "PDF417" ; hZebra := hb_zebra_create_pdf417( cCode, nFlags ); nLineHeight := nLineWidth * 3 ; EXIT
CASE "DATAMATRIX" ; hZebra := hb_zebra_create_datamatrix( cCode, nFlags ); nLineHeight := nLineWidth ; EXIT
CASE "QRCODE" ; hZebra := hb_zebra_create_qrcode( cCode, nFlags ); nLineHeight := nLineWidth ; EXIT
ENDSWITCH
nY *= _SCALE_
nYPixel := nY * hb_gtInfo( HB_GTI_FONTSIZE )
nLineWidth *= _SCALE_
IF hZebra != NIL
IF hb_zebra_geterror( hZebra ) == 0
IF nLineHeight == NIL
nLineHeight := 16
ENDIF
hb_dispOutAt( nY, nX - 31, cType )
cTxt := hb_zebra_getcode( hZebra )
IF Len( cTxt ) > nX - 12
cTxt := Left( cTxt, nX - 12 - 4 ) + "..."
ENDIF
hb_dispOutAt( nY, nx - 20, cTxt )
hb_zebra_draw_gfx( hZebra, nColor, nX * hb_gtInfo( HB_GTI_FONTWIDTH ), nYPixel, nLineWidth, nLineHeight * _SCALE_ )
ELSE
? "Type", cType, "Code", cCode, "Error", hb_zebra_geterror( hZebra )
ENDIF
hb_zebra_destroy( hZebra )
ELSE
? "Invalid barcode type", cType
ENDIF
RETURN
STATIC FUNCTION hb_zebra_draw_gfx( hZebra, nColor, ... )
IF hb_zebra_geterror( hZebra ) != 0
RETURN HB_ZEBRA_ERROR_INVALIDZEBRA
ENDIF
RETURN hb_zebra_draw( hZebra, {| x, y, w, h | hb_gfxfilledRect( y, x, y + h, x + w, nColor ) }, ... )