Package org.apache.xmlgraphics.ps.dsc

Examples of org.apache.xmlgraphics.ps.dsc.DSCException

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        }
       
        //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;
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            event.generate(gen);
        }
    }

    private static void reportInvalidDSC() throws DSCException {
        throw new DSCException("File is not DSC-compliant: Unexpected end of file");
    }
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     * @throws IOException In case of an I/O problem
     */
    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 + "'");
            }
            return header;
        } else {
            throw new DSCException("PostScript file does not start with '"
                    + DSCConstants.PS_ADOBE_30 + "'");
        }
    }
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        });

        //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");
        }
        parser.setFilter(null); //Remove filter

        //Process individual pages (and skip as necessary)
        while (true) {
            DSCCommentPage page = (DSCCommentPage)pageOrTrailer;
            boolean validPage = (page.getPagePosition() >= from && page.getPagePosition() <= to);
            if (validPage) {
                page.setPagePosition(page.getPagePosition() - from + 1);
                page.generate(gen);
                pageCount++;
            }
            pageOrTrailer = DSCTools.nextPageOrTrailer(parser, (validPage ? gen : null));
            if (pageOrTrailer == null) {
                throw new DSCException("File is not DSC-compliant: Unexpected end of file");
            } else if (!DSCConstants.PAGE.equals(pageOrTrailer.getName())) {
                pageOrTrailer.generate(gen);
                break;
            }
        }
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     * @throws IOException In case of an I/O problem
     */
    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 + "'");
            }
            return header;
        } else {
            throw new DSCException("PostScript file does not start with '"
                    + DSCConstants.PS_ADOBE_30 + "'");
        }
    }
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        });

        //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");
        }
        parser.setFilter(null); //Remove filter
       
        //Process individual pages (and skip as necessary)
        while (true) {
            DSCCommentPage page = (DSCCommentPage)pageOrTrailer;
            boolean validPage = (page.getPagePosition() >= from && page.getPagePosition() <= to);
            if (validPage) {
                page.setPagePosition(page.getPagePosition() - from + 1);
                page.generate(gen);
                pageCount++;
            }
            pageOrTrailer = DSCTools.nextPageOrTrailer(parser, (validPage ? gen : null));
            if (pageOrTrailer == null) {
                throw new DSCException("File is not DSC-compliant: Unexpected end of file");
            } else if (!DSCConstants.PAGE.equals(pageOrTrailer.getName())) {
                pageOrTrailer.generate(gen);
                break;
            }
        }
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        }
       
        //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;
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            event.generate(gen);
        }
    }

    private static void reportInvalidDSC() throws DSCException {
        throw new DSCException("File is not DSC-compliant: Unexpected end of file");
    }
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     * @throws IOException In case of an I/O problem
     */
    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 + "'");
            }
            return header;
        } else {
            throw new DSCException("PostScript file does not start with '"
                    + DSCConstants.PS_ADOBE_30 + "'");
        }
    }
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        });

        //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");
        }
        parser.setFilter(null); //Remove filter

        //Process individual pages (and skip as necessary)
        while (true) {
            DSCCommentPage page = (DSCCommentPage)pageOrTrailer;
            boolean validPage = (page.getPagePosition() >= from && page.getPagePosition() <= to);
            if (validPage) {
                page.setPagePosition(page.getPagePosition() - from + 1);
                page.generate(gen);
                pageCount++;
            }
            pageOrTrailer = DSCTools.nextPageOrTrailer(parser, (validPage ? gen : null));
            if (pageOrTrailer == null) {
                throw new DSCException("File is not DSC-compliant: Unexpected end of file");
            } else if (!DSCConstants.PAGE.equals(pageOrTrailer.getName())) {
                pageOrTrailer.generate(gen);
                break;
            }
        }
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Related Classes of org.apache.xmlgraphics.ps.dsc.DSCException

  • org.apache.fop.render.ps.ResourceHandler
  • org.apache.xmlgraphics.ps.dsc.tools.DSCTools
  • org.apache.xmlgraphics.ps.dsc.tools.PageExtractor
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