Examples of DSCEvent

org.apache.xmlgraphics.ps.dsc.events.DSCEvent
Interface representing a DSC event. A DSC event can be a DSC comment, a PostScript comment or a line of PostScript code.

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

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

            }
        }


        //Write the rest
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            event.generate(gen);
        }
    }

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

            DSCParser parser;
            try {
                parser = new DSCParser(new ImageInputStreamAdapter(in));
                outerLoop:
                while (parser.hasNext()) {
                    DSCEvent event = parser.nextEvent();
                    switch (event.getEventType()) {
                    case DSCParserConstants.HEADER_COMMENT:
                    case DSCParserConstants.COMMENT:
                        //ignore
                        break;
                    case DSCParserConstants.DSC_COMMENT:
                        DSCComment comment = event.asDSCComment();
                        if (comment instanceof DSCCommentBoundingBox) {
                            DSCCommentBoundingBox bboxComment = (DSCCommentBoundingBox)comment;
                            if (DSCConstants.BBOX.equals(bboxComment.getName()) && bbox == null) {
                                bbox = (Rectangle2D)bboxComment.getBoundingBox().clone();
                                //BoundingBox is good but HiRes is better so continue

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

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

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

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

     * @throws DSCException if a DSC error occurs
     */
    protected static DSCComment gotoDSCComment(DSCParser parser, String name)
            throws IOException, DSCException {
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            if (event.isDSCComment()) {
                DSCComment comment = event.asDSCComment();
                if (comment.getName().equals(name)) {
                    return comment;
                }
            }
        }

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

    }


    private String getResourceContent(DSCParser parser) throws IOException, DSCException {
        StringBuffer sb = new StringBuffer();
        while (parser.hasNext()) {
            DSCEvent event = parser.nextEvent();
            if (event.isLine()) {
                sb.append(event.asLine().getLine()).append('\n');
            } else if (event.isDSCComment()) {
                if (DSCConstants.END_RESOURCE.equals(event.asDSCComment().getName())) {
                    break;
                }
            }
        }
        return sb.toString();

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

            }
        });


        //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);
                new DSCCommentBoundingBox(documentBoundingBox).generate(gen);
                new DSCCommentHiResBoundingBox(documentBoundingBox).generate(gen);


                PSFontUtils.determineSuppliedFonts(resTracker, fontInfo, fontInfo.getUsedFonts());
                registerSuppliedForms(resTracker, globalFormResources);


                //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(globalFormResources, 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);
        }
        gen.flush();
    }

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

                        //Create an inline form
                        //Wrap in save/restore pair to release memory
                        gen.writeln("save");
                        generateFormForImage(gen, form);
                        boolean execformFound = false;
                        DSCEvent next = parser.nextEvent();
                        if (next.isLine()) {
                            PostScriptLine line = next.asLine();
                            if (line.getLine().endsWith(" execform")) {
                                line.generate(gen);
                                execformFound = true;
                            }
                        }

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