lazbarcodes: Fix code-page used by TBarcodeMaxicode.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8240 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/lazbarcodes/src/lbc_maxicode.pas

@@ -2,8 +2,6 @@
 
   Based on Zint (done by Robin Stuart and the Zint team)
     http://github.com/zint/zint
-  and Pascal adaption by TheUnknownOnes
-    http://theunknownones.net
     
   Refactoring: W. Pamler
 } 
@@ -245,7 +243,7 @@ begin
     _set[0] := 1;
   end;
   
-  for i := 1 to ALength-1 do
+  for i := 1 to ALength-1 do          // Beginning with 1 is intentional here.
   begin
     if _set[i] = 0 then
     begin

components/lazbarcodes/src/ubarcodes.pas

@@ -651,7 +651,7 @@ implementation
 {$R lazbarcodes_icons.res}
 
 uses
-  clipbrd, propedits,
+  lconvencoding, clipbrd, propedits,
   lbc_basic, lbc_helper, lbc_render, lbc_svg, 
   lbc_code, lbc_code128, lbc_2of5, lbc_upcean, lbc_plessey, lbc_telepen, 
   lbc_medical, lbc_postal, lbc_auspost, 
@@ -3386,7 +3386,7 @@ begin
   if FMode in [mcmAuto, mcmMode2, mcmMode3] then
     FSymbol^.SetPrimary(FPrimary);
 
-  Result := maxicode(FSymbol, FText);
+  Result := maxicode(FSymbol, UTF8ToISO_8859_1(FText));
 end;
 
 procedure TBarcodeMaxiCode.RenderSymbol(xLeft, yTop, ASymbolWidth, ASymbolHeight,