const QString EncoderAssistant::version(const EncoderAssistant::Encoder encoder) { KProcess process; process.setOutputChannelMode(KProcess::SeparateChannels); process.setReadChannel(KProcess::StandardError); switch (encoder) { case EncoderAssistant::LAME : process.setShellCommand(QString(ENCODER_LAME_BIN)+" "+QString(ENCODER_LAME_VERSION_PARA)); break; case EncoderAssistant::OGGENC : process.setShellCommand(QString(ENCODER_OGGENC_BIN)+" "+QString(ENCODER_OGGENC_VERSION_PARA)); break; case EncoderAssistant::FLAC : process.setShellCommand(QString(ENCODER_FLAC_BIN)+" "+QString(ENCODER_FLAC_VERSION_PARA)); break; case EncoderAssistant::FAAC : process.setShellCommand(QString(ENCODER_FAAC_BIN)+" "+QString(ENCODER_FAAC_VERSION_PARA)); break; case EncoderAssistant::WAVE : return ""; case EncoderAssistant::CUSTOM : return ""; default : return ""; } process.start(); if (!process.waitForFinished()) return ""; QByteArray rawoutput = process.readAllStandardError(); if (rawoutput.size() == 0) rawoutput = process.readAllStandardOutput(); QString output(rawoutput); QStringList list = output.trimmed().split("\n"); if (list.count()==0) return ""; QStringList words = list[0].split(" "); if (words.count()==0) return ""; switch (encoder) { case EncoderAssistant::LAME : if ((words.contains("version")) && (words.indexOf("version")+1<words.count())) return words[words.indexOf("version")+1]; if (words.count()<2) return ""; return words[words.count()-2]; case EncoderAssistant::OGGENC : case EncoderAssistant::FLAC : return words.last(); case EncoderAssistant::FAAC : if (list.count()<2) return ""; words = list[1].split(" "); if (words.count()<2) return ""; if ((words.contains("FAAC")) && (words.indexOf("FAAC")+1<words.count())) return words[words.indexOf("FAAC")+1]; return words[1]; case EncoderAssistant::WAVE : case EncoderAssistant::CUSTOM : default : ; } return ""; }
void ghostscript_interface::gs_generate_graphics_file(const PageNumber& page, const QString& filename, long magnification) { #ifdef DEBUG_PSGS kDebug(kvs::dvi) << "ghostscript_interface::gs_generate_graphics_file( " << page << ", " << filename << " )"; #endif if (knownDevices.isEmpty()) { kError(kvs::dvi) << "No known devices found" << endl; return; } pageInfo *info = pageList.value(page); // Generate a PNG-file // Step 1: Write the PostScriptString to a File KTemporaryFile PSfile; PSfile.setAutoRemove(false); PSfile.setSuffix(".ps"); PSfile.open(); const QString PSfileName = PSfile.fileName(); QTextStream os(&PSfile); os << "%!PS-Adobe-2.0\n" << "%%Creator: kdvi\n" << "%%Title: KDVI temporary PostScript\n" << "%%Pages: 1\n" << "%%PageOrder: Ascend\n" // HSize and VSize in 1/72 inch << "%%BoundingBox: 0 0 " << (qint32)(72*(pixel_page_w/resolution)) << ' ' << (qint32)(72*(pixel_page_h/resolution)) << '\n' << "%%EndComments\n" << "%!\n" << psheader << "TeXDict begin " // HSize in (1/(65781.76*72))inch << (qint32)(72*65781*(pixel_page_w/resolution)) << ' ' // VSize in (1/(65781.76*72))inch << (qint32)(72*65781*(pixel_page_h/resolution)) << ' ' // Magnification << (qint32)(magnification) // dpi and vdpi << " 300 300" // Name << " (test.dvi)" << " @start end\n" << "TeXDict begin\n" // Start page << "1 0 bop 0 0 a \n"; if (!PostScriptHeaderString->toLatin1().isNull()) os << PostScriptHeaderString->toLatin1(); if (info->background != Qt::white) { QString colorCommand = QString("gsave %1 %2 %3 setrgbcolor clippath fill grestore\n"). arg(info->background.red()/255.0). arg(info->background.green()/255.0). arg(info->background.blue()/255.0); os << colorCommand.toLatin1(); } if (!info->PostScriptString->isNull()) os << *(info->PostScriptString); os << "end\n" << "showpage \n"; PSfile.close(); // Step 2: Call GS with the File QFile::remove(filename.toAscii()); KProcess proc; proc.setOutputChannelMode(KProcess::SeparateChannels); QStringList argus; argus << "gs"; argus << "-dSAFER" << "-dPARANOIDSAFER" << "-dDELAYSAFER" << "-dNOPAUSE" << "-dBATCH"; argus << QString("-sDEVICE=%1").arg(*gsDevice); argus << QString("-sOutputFile=%1").arg(filename); argus << QString("-sExtraIncludePath=%1").arg(includePath); argus << QString("-g%1x%2").arg(pixel_page_w).arg(pixel_page_h); // page size in pixels argus << QString("-r%1").arg(resolution); // resolution in dpi argus << "-dTextAlphaBits=4 -dGraphicsAlphaBits=2"; // Antialiasing argus << "-c" << "<< /PermitFileReading [ ExtraIncludePath ] /PermitFileWriting [] /PermitFileControl [] >> setuserparams .locksafe"; argus << "-f" << PSfileName; #ifdef DEBUG_PSGS kDebug(kvs::dvi) << argus.join(" "); #endif proc << argus; int res = proc.execute(); if ( res ) { // Starting ghostscript did not work. // TODO: Issue error message, switch PS support off. kError(kvs::dvi) << "ghostview could not be started" << endl; } PSfile.remove(); // Check if gs has indeed produced a file. if (QFile::exists(filename) == false) { kError(kvs::dvi) << "GS did not produce output." << endl; // No. Check is the reason is that the device is not compiled into // ghostscript. If so, try again with another device. QString GSoutput; proc.setReadChannel(QProcess::StandardOutput); while(proc.canReadLine()) { GSoutput = QString::fromLocal8Bit(proc.readLine()); if (GSoutput.contains("Unknown device")) { kDebug(kvs::dvi) << QString("The version of ghostview installed on this computer does not support " "the '%1' ghostview device driver.").arg(*gsDevice) << endl; knownDevices.erase(gsDevice); gsDevice = knownDevices.begin(); if (knownDevices.isEmpty()) // TODO: show a requestor of some sort. #if 0 KMessageBox::detailedError(0, i18n("<qt>The version of Ghostview that is installed on this computer does not contain " "any of the Ghostview device drivers that are known to Okular. PostScript " "support has therefore been turned off in Okular.</qt>"), i18n("<qt><p>The Ghostview program, which Okular uses internally to display the " "PostScript graphics that is included in this DVI file, is generally able to " "write its output in a variety of formats. The sub-programs that Ghostview uses " "for these tasks are called 'device drivers'; there is one device driver for " "each format that Ghostview is able to write. Different versions of Ghostview " "often have different sets of device drivers available. It seems that the " "version of Ghostview that is installed on this computer does not contain " "<strong>any</strong> of the device drivers that are known to Okular.</p>" "<p>It seems unlikely that a regular installation of Ghostview would not contain " "these drivers. This error may therefore point to a serious misconfiguration of " "the Ghostview installation on your computer.</p>" "<p>If you want to fix the problems with Ghostview, you can use the command " "<strong>gs --help</strong> to display the list of device drivers contained in " "Ghostview. Among others, Okular can use the 'png256', 'jpeg' and 'pnm' " "drivers. Note that Okular needs to be restarted to re-enable PostScript support." "</p></qt>")); #else {} #endif else { kDebug(kvs::dvi) << QString("Okular will now try to use the '%1' device driver.").arg(*gsDevice); gs_generate_graphics_file(page, filename, magnification); } return; }