Package org.apache.xmlgraphics.ps.dsc.events

Examples of org.apache.xmlgraphics.ps.dsc.events.DSCEvent

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            }
        });

        //Get PostScript language level (may be missing)
        while (true) {
            DSCEvent event = parser.nextEvent();
            if (event == null) {
                reportInvalidDSC();
            }
            if (DSCTools.headerCommentsEndHere(event)) {
                //Set number of pages
                DSCCommentPages pages = new DSCCommentPages(pageCount);
                pages.generate(gen);

                PSFontUtils.determineSuppliedFonts(resTracker, fontInfo, fontInfo.getUsedFonts());
                registerSuppliedForms(resTracker, formResources);
               
                //Supplied Resources
                DSCCommentDocumentSuppliedResources supplied
                    = new DSCCommentDocumentSuppliedResources(
                            resTracker.getDocumentSuppliedResources());
                supplied.generate(gen);
               
                //Needed Resources
                DSCCommentDocumentNeededResources needed
                    = new DSCCommentDocumentNeededResources(
                            resTracker.getDocumentNeededResources());
                needed.generate(gen);

                //Write original comment that ends the header comments
                event.generate(gen);
                break;
            }
            if (event.isDSCComment()) {
                DSCComment comment = event.asDSCComment();
                if (DSCConstants.LANGUAGE_LEVEL.equals(comment.getName())) {
                    DSCCommentLanguageLevel level = (DSCCommentLanguageLevel)comment;
                    gen.setPSLevel(level.getLanguageLevel());
                }
            }
            event.generate(gen);
        }
       
        //Skip to the FOPFontSetup
        PostScriptComment fontSetupPlaceholder = parser.nextPSComment("FOPFontSetup", gen);
        if (fontSetupPlaceholder == null) {
            throw new DSCException("Didn't find %FOPFontSetup comment in stream");
        }
        PSFontUtils.writeFontDict(gen, fontInfo, fontInfo.getUsedFonts());
        generateForms(resTracker, userAgent, formResources, gen);

        //Skip the prolog and to the first page
        DSCComment pageOrTrailer = parser.nextDSCComment(DSCConstants.PAGE, gen);
        if (pageOrTrailer == null) {
            throw new DSCException("Page expected, but none found");
        }
       
        //Process individual pages (and skip as necessary)
        while (true) {
            DSCCommentPage page = (DSCCommentPage)pageOrTrailer;
            page.generate(gen);
            pageOrTrailer = DSCTools.nextPageOrTrailer(parser, gen);
            if (pageOrTrailer == null) {
                reportInvalidDSC();
            } else if (!DSCConstants.PAGE.equals(pageOrTrailer.getName())) {
                pageOrTrailer.generate(gen);
                break;
            }
        }
       
        //Write the rest
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            event.generate(gen);
        }
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public void parse(DSCHandler handler) throws IOException, DSCException {
        DSCHeaderComment header = DSCTools.checkAndSkipDSC30Header(this);
        handler.startDocument("%!" + header.getComment());
        DSCEvent event;
        while (hasNext()) {
            event = nextEvent();
            switch (event.getEventType()) {
            case HEADER_COMMENT:
                handler.startDocument("%!" + ((DSCHeaderComment)event).getComment());
                break;
            case DSC_COMMENT:
                handler.handleDSCComment(event.asDSCComment());
                break;
            case COMMENT:
                handler.comment(((PostScriptComment)event).getComment());
                break;
            case LINE:
                handler.line(getLine());
                break;
            case EOF:
                if (isCheckEOF()) {
                    this.eofFound = true;
                }
                handler.endDocument();
                break;
            default:
                throw new IllegalStateException("Illegal event type: " + event.getEventType());
            }
        }
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public DSCComment nextDSCComment(String name, PSGenerator gen)
                throws IOException, DSCException {
        while (hasNext()) {
            DSCEvent event = nextEvent();
            if (event.isDSCComment()) {
                DSCComment comment = event.asDSCComment();
                if (name.equals(comment.getName())) {
                    return comment;
                }
            }
            if (gen != null) {
                event.generate(gen); //Pipe through to PSGenerator
            }
        }
        return null;
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public PostScriptComment nextPSComment(String prefix, PSGenerator gen)
                    throws IOException, DSCException {
            while (hasNext()) {
                DSCEvent event = nextEvent();
                if (event.isComment()) {
                    PostScriptComment comment = (PostScriptComment)event;
                    if (comment.getComment().startsWith(prefix)) {
                        return comment;
                    }
                }
                if (gen != null) {
                    event.generate(gen); //Pipe through to PSGenerator
                }
            }
            return null;
    }
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    public static DSCHeaderComment checkAndSkipDSC30Header(DSCParser parser)
                throws DSCException, IOException {
        if (!parser.hasNext()) {
            throw new DSCException("File has no content");
        }
        DSCEvent event = parser.nextEvent();
        if (event.getEventType() == HEADER_COMMENT) {
            DSCHeaderComment header = (DSCHeaderComment)event;
            if (!header.isPSAdobe30()) {
                throw new DSCException("PostScript file does not start with '"
                        + DSCConstants.PS_ADOBE_30 + "'");
            }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public static DSCComment nextPageOrTrailer(DSCParser parser, PSGenerator gen)
                throws IOException, DSCException {
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            if (event.getEventType() == DSC_COMMENT) {
                DSCComment comment = event.asDSCComment();
                if (DSCConstants.PAGE.equals(comment.getName())) {
                    return comment;
                } else if (DSCConstants.TRAILER.equals(comment.getName())) {
                    return comment;
                }
            } else if (event.getEventType() == EOF) {
                //The Trailer may be missing
                return event.asDSCComment();
            }
            if (gen != null) {
                event.generate(gen); //Pipe through to PSGenerator
            }
        }
        return null;
    }
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            }
        }

        //Write the rest
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            event.generate(gen);
        }
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public void parse(DSCHandler handler) throws IOException, DSCException {
        DSCHeaderComment header = DSCTools.checkAndSkipDSC30Header(this);
        handler.startDocument("%!" + header.getComment());
        DSCEvent event;
        while (hasNext()) {
            event = nextEvent();
            switch (event.getEventType()) {
            case HEADER_COMMENT:
                handler.startDocument("%!" + ((DSCHeaderComment)event).getComment());
                break;
            case DSC_COMMENT:
                handler.handleDSCComment(event.asDSCComment());
                break;
            case COMMENT:
                handler.comment(((PostScriptComment)event).getComment());
                break;
            case LINE:
                handler.line(getLine());
                break;
            case EOF:
                if (isCheckEOF()) {
                    this.eofFound = true;
                }
                handler.endDocument();
                break;
            default:
                throw new IllegalStateException("Illegal event type: " + event.getEventType());
            }
        }
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public DSCComment nextDSCComment(String name, PSGenerator gen)
                throws IOException, DSCException {
        while (hasNext()) {
            DSCEvent event = nextEvent();
            if (event.isDSCComment()) {
                DSCComment comment = event.asDSCComment();
                if (name.equals(comment.getName())) {
                    return comment;
                }
            }
            if (gen != null) {
                event.generate(gen); //Pipe through to PSGenerator
            }
        }
        return null;
    }
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     * @throws DSCException In case of a violation of the DSC spec
     */
    public PostScriptComment nextPSComment(String prefix, PSGenerator gen)
                    throws IOException, DSCException {
            while (hasNext()) {
                DSCEvent event = nextEvent();
                if (event.isComment()) {
                    PostScriptComment comment = (PostScriptComment)event;
                    if (comment.getComment().startsWith(prefix)) {
                        return comment;
                    }
                }
                if (gen != null) {
                    event.generate(gen); //Pipe through to PSGenerator
                }
            }
            return null;
    }
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Related Classes of org.apache.xmlgraphics.ps.dsc.events.DSCEvent

  • org.apache.fop.render.ps.AbstractPostScriptTest
  • org.apache.fop.render.ps.AbstractPostScriptTestCase
  • org.apache.fop.render.ps.ImageHandlingTestCase
  • org.apache.fop.render.ps.ResourceHandler
  • org.apache.fop.render.ps.ResourceHandler$IncludeResourceListener
  • org.apache.xmlgraphics.image.loader.impl.PreloaderEPS
  • org.apache.xmlgraphics.ps.dsc.DSCParser
  • org.apache.xmlgraphics.ps.dsc.ListenerTestCase
  • org.apache.xmlgraphics.ps.dsc.tools.DSCTools
  • org.apache.xmlgraphics.ps.dsc.tools.DSCToolsTestCase
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