问题
I have java code that writes arabic characters with the help of itext 5.5 and xmlworker jars, but its writing left to right even after writer.setRunDirection(PdfWriter.RUN_DIRECTION_RTL) is used.
Code used is:
public class CreateArabic extends DefaultHandler {
/** Paths to and encodings of fonts we're going to use in this example */
public static String[][] FONTS = {
{"C:/arialuni.ttf", BaseFont.IDENTITY_H},
{"C:/abserif4_5.ttf", BaseFont.IDENTITY_H},
{"C:/damase.ttf", BaseFont.IDENTITY_H},
{"C:/fsex2p00_public.ttf", BaseFont.IDENTITY_H}
};
/** Holds he fonts that can be used for the peace message. */
public FontSelector fs;
public CreateArabic() {
fs = new FontSelector();
for (int i = 0; i < FONTS.length; i++) {
fs.addFont(FontFactory.getFont(FONTS[i][0], FONTS[i][1], BaseFont.EMBEDDED));
}
}
public static void main(String args[]) {
try {
// step 1
Rectangle pagesize = new Rectangle(8.5f * 72, 11 * 72);
Document document = new Document();//pagesize, 72, 72, 72, 72);// step1
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream("c:\\report.pdf"));
writer.setInitialLeading(200.5f);
//writer.getAcroForm().setNeedAppearances(true);
//writer.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
document.open();
FontFactory.registerDirectories();
Font font = FontFactory.getFont("C:\\damase.ttf",
BaseFont.IDENTITY_H, true, 22, Font.BOLD);
// step 3
document.open();
// step 4
XMLWorkerHelper helper = XMLWorkerHelper.getInstance();
// CSS
CSSResolver cssResolver = new StyleAttrCSSResolver();
CssFile cssFile = helper.getCSS(new FileInputStream(
"D:\\Itext_Test\\Test\\src\\test.css"));
cssResolver.addCss(cssFile);
// HTML
XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider();
// fontProvider.addFontSubstitute("lowagie", "garamond");
CssAppliers cssAppliers = new CssAppliersImpl(fontProvider);
HtmlPipelineContext htmlContext = new HtmlPipelineContext(
cssAppliers);
htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
// // Pipelines
PdfWriterPipeline pdf = new PdfWriterPipeline(document, writer);
HtmlPipeline html = new HtmlPipeline(htmlContext, pdf);
CssResolverPipeline css = new CssResolverPipeline(cssResolver,
html);
writer.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
System.out.println("RUN DIRECTION --> "+writer.getRunDirection());
XMLWorker worker = new XMLWorker(css, true);
XMLParser p = new XMLParser(worker,Charset.forName("UTF-8"));
String htmlString2 = "<html><body style=\"color:red;\">Hello"+"??"+"</body></html>";
String htmlString = "<body style='font-family:arial;'>h"+"??"+"<p style='font-family:arial;' > ????? </p></body>";
String html1 ="<html><head></head><body>Hello <p style=\"color:red\" >oo ??</p> World! \u062a\u0639\u0637\u064a \u064a\u0648\u0646\u064a\u0643\u0648\u062f \u0631\u0642\u0645\u0627 \u0641\u0631\u064a\u062f\u0627 \u0644\u0643\u0644 \u062d\u0631\u0641 "+htmlString+"Testing</body></html>";
ByteArrayInputStream is = new ByteArrayInputStream(htmlString.getBytes("UTF-8"));
p.detectEncoding(is);
p.parse(is, Charset.forName("UTF-8"));//.parse(is, "UTF-8");//parse(is);//ASMO-708
// step 5
document.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
Output file is also attached.
回答1:
As documented, this is not supposed to work:
writer.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
Arabic (and Hebrew) can only be rendered correctly in the context of ColumnText and PdfPCell. In other words: if you want to use Arabic from XML Worker, you need to create an ElementList and then add the elments to a ColumnText object as is done here.
You need to set the run direction at the level of the ColumnText object.
回答2:
//This solution works for me: :)
// document
Document document = new Document(PageSize.LEGAL);
//fonts
XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider(XMLWorkerFontProvider.DONTLOOKFORFONTS);
fontProvider.register("/Users/ibrahimbakhsh/Library/Fonts/tradbdo.ttf", BaseFont.IDENTITY_H);
fontProvider.register("/Users/ibrahimbakhsh/Library/Fonts/trado.otf", BaseFont.IDENTITY_H);
fontProvider.register("/Users/ibrahimbakhsh/Library/Fonts/tahoma.ttf", BaseFont.IDENTITY_H);
CssAppliers cssAppliers = new CssAppliersImpl(fontProvider);
HtmlPipelineContext htmlContext = new HtmlPipelineContext(cssAppliers);
htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
// CSS
CSSResolver cssResolver =
XMLWorkerHelper.getInstance().getDefaultCssResolver(true);
// Pipelines
ElementList elements = new ElementList();
ElementHandlerPipeline end = new ElementHandlerPipeline(elements, null);
HtmlPipeline html = new HtmlPipeline(htmlContext, end);
CssResolverPipeline css = new CssResolverPipeline(cssResolver, html);
// HTML
htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
htmlContext.autoBookmark(false);
// XML Worker
XMLWorker worker = new XMLWorker(css, true);
XMLParser p = new XMLParser(worker);
p.parse(new FileInputStream(HTML));
//writer
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
writer.setInitialLeading(12.5f);
writer.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
// step 4
document.open();
// step 5
for (Element e : elements) {
//out.println(e.toString());
if(e instanceof PdfPTable){
PdfPTable t = (PdfPTable) e;
t.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
ArrayList<PdfPRow> rows = t.getRows();
for(PdfPRow row:rows){
PdfPCell[] cells = row.getCells();
for(PdfPCell cell:cells){
cell.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
}
}
e = t;
}
document.add(e);
}
//try adding new table
PdfPTable table = new PdfPTable(1);
table.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
Font f = new Font(BaseFont.createFont("/Users/ibrahimbakhsh/Library/Fonts/trado.otf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED));
PdfPCell cell = new PdfPCell(new Paragraph("تجربة نص عربي",f));
table.addCell(cell);
document.add(table);
// step 6
document.close();
回答3:
For developers that need an straightforward solution
I used this trick and output is very clean and nice!
- create a
PDFPTablewith1column - for every paragraph of your content, create a
Paragraphobject and set its alignment toParagraph.ALIGN_JUSTIFIED(I don't know why but it causes to paragraph align to right of page!!!) - create a
PDFPCelland remove its borders usingsetBorder(Rectangle.NO_BORDER)and add the paragraph to cell - add the cell to the table
here is a code sample to your convenience.
public void main(){
/*
* create and initiate document
* */
// repeat this for all your paragraphs
PdfPTable pTable = new PdfPTable(1);
Paragraph paragraph = getCellParagraph();
paragraph.add("your RTL content");
PdfPCell cell = getPdfPCellNoBorder(paragraph);
pTable.addCell(cell);
// after add all your content
document.add(pTable);
}
private Paragraph getCellParagraph() {
Paragraph paragraph = new Paragraph();
paragraph.setAlignment(Paragraph.ALIGN_JUSTIFIED);
// set other styles you need like custom font
return paragraph;
}
private PdfPCell getPdfPCellNoBorder(Paragraph paragraph) {
PdfPCell cell = new PdfPCell();
cell.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
cell.setPaddingBottom(8);
cell.setBorder(Rectangle.NO_BORDER);
cell.addElement(paragraph);
return cell;
}
来源：https://stackoverflow.com/questions/23889488/rtl-not-working-in-pdf-generation-with-itext-5-5-for-arabic-text