Paulo, with reference to your response: "Maybe those characters don't exist
in the font or are invisible"
I checked it and those characters do exist, I checked it using Character Map
of Windows, for instance the character Š in font BarCode 128 has a valid
symbol (which are 4 vertical bars and it is the character Latin Capital
Letter S With Caron U+0160 ).
While debugging itext source code I see the text is encoded using this line:
PdfEncodings.ConvertToBytes(text, "symboltt"); which goes to
SymbolTTConversion.CharToByte and in that function characters like Š are
removed:
for (int k = 0; k < len; ++k) {
char c = ch[k];
if ((c & 0xff00) == 0 || (c & 0xff00) == 0xf000) //it
doesn't happen for Š so it is ignored
b[ptr++] = (byte)c;
}
Why this character is ignored in that code?. It is a valid character for
Code128 font.
Any help would be appreciated.
Regards,
Claudia.
On Fri, Jan 8, 2010 at 4:33 PM, Claudia Murialdo <[email protected]>wrote:
> Hello,
> I have another example of a valid text for Barcode 128:
> "‰A)'=_Xwè!-Wè>èè1F0èBÀ~UŠ"
> It corresponds to the string 33090729635687000113550030000017381600349594
> converted to Barcode 128.
> It has checksum and start and stop characters. It is ok in word when I use
> Barcode 128 font. But it is incomplete (the start and stop characters don't
> appear) in the generated PDF.
> This is my source code:
>
>
> Rectangle pageSize = new Rectangle(780, 525);
> Document document = new Document(pageSize);
>
> PdfWriter writer = PdfWriter.GetInstance(document,
> File.OpenWrite("Test.pdf"));
> document.Open();
>
> PdfContentByte cb = writer.DirectContent;
> BaseFont bf =
> BaseFont.CreateFont(@"C:\WINDOWS\Fonts\bcode128.ttf", BaseFont.IDENTITY_H,
> BaseFont.EMBEDDED);
>
> cb.SetFontAndSize(bf, 50);
> cb.BeginText();
> cb.ShowTextAligned(Element.ALIGN_CENTER,
> "‰A)'=_Xwè!-Wè>èè1F0èBÀ~UŠ", 200, 400, 0f);
> cb.EndText();
> document.Close();
>
> What do you think that could be the problem?.
> Regards,
> Claudia.
>
>
>
> On Thu, Jan 7, 2010 at 1:40 PM, Claudia Murialdo <[email protected]>wrote:
>
>> Paulo, I did another test with a string of characters which has a
>> checksum, and it seems to be ok. If I write those characters in Word with
>> the "PF Barcode 128" font I see the barcode is ok (see CompleteBarcode.rtf)
>> .
>> But the same string (which is in text.txt) appears incomplete in the PDF
>> generated using itext (IncompleteBarcode.pdf). The start and stop characters
>> are not visible. I'm not sure what else to try.
>> What else do you think could be the problem?.
>>
>>
>>
>> On Sat, Dec 26, 2009 at 12:53 PM, Claudia Murialdo
>> <[email protected]>wrote:
>>
>>> Ok. Thank you. I'm going to check that.
>>> Regards,
>>> Claudia.
>>>
>>> On Wed, Dec 23, 2009 at 5:17 PM, Paulo Soares <[email protected]>wrote:
>>>
>>>> Maybe those characters don't exist in the font or are invisible. If
>>>> that's a
>>>> code128 font you'll also need to calculate the checksum and put another
>>>> character or characters, it's quite complex. I don't see how this is an
>>>> iText related problem.
>>>>
>>>> Paulo
>>>>
>>>> ----- Original Message -----
>>>> From: "Claudia Murialdo" <[email protected]>
>>>> To: <[email protected]>
>>>> Sent: Wednesday, December 23, 2009 1:54 PM
>>>> Subject: [iText-questions] Barcode128 PDF start and stop characters
>>>> don´t
>>>> appear
>>>>
>>>>
>>>> > Hello,
>>>> > I'm using itext to generate a PDF document with a BarCode128. The
>>>> problem
>>>> > is that the start and stop characters (characters 135 and 138) are not
>>>> > printed. It works fine if I do it using iTextSharp.text.pdf.Barcode128
>>>> > instead of PdfContentByte using the true type font.
>>>> > This is the code:
>>>> >
>>>> > public static void Main(String[] args)
>>>> > {
>>>> > Rectangle pageSize = new Rectangle(780, 525);
>>>> > Document document = new Document(pageSize);
>>>> >
>>>> > PdfWriter writer = PdfWriter.GetInstance(document,
>>>> > File.OpenWrite("Test.pdf"));
>>>> > document.Open();
>>>> >
>>>> > PdfContentByte cb = writer.DirectContent;
>>>> > BaseFont bf =
>>>> BaseFont.CreateFont(@"C:\WINDOWS\Fonts\Bcode128.ttf",
>>>> > BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
>>>> > cb.SetFontAndSize(bf, 50);
>>>> > cb.BeginText();
>>>> > cb.ShowTextAligned(Element.ALIGN_CENTER, "‡BARCODE7Š", 200,
>>>> 350,
>>>> > 0f); //Character ‡ and Š don't appear in the generated PDF document
>>>> >
>>>> > cb.EndText();
>>>> >
>>>> > document.Close();
>>>> > }
>>>> >
>>>> > I tried with the unicode numbers (I tried with this string:
>>>> > "\u01c2BARCODE7\u0160") but it is the same.
>>>> > Also, bf.CharExists('‡') returns false, and the same for
>>>> > bf.CharExists('Š'). I guess it is related with the problem.
>>>> >
>>>> > How can I get those start and stop characters printed using
>>>> > PdfContentByte?.
>>>> > Thanks in advance.
>>>> > Claudia.
>>>> >
>>>>
>>>>
>>>>
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>>>
>>
>
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