Long live Qt!

1 files changed, 1141 insertions, 0 deletions

diff --git a/src/gui/painting/qprinterinfo_unix.cpp b/src/gui/painting/qprinterinfo_unix.cpp
new file mode 100644
index 0000000..0f33ea7
--- /dev/null
+++ b/src/gui/painting/qprinterinfo_unix.cpp
@@ -0,0 +1,1141 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qprinterinfo.h"
+
+#include <qfile.h>
+#include <qfileinfo.h>
+#include <qdir.h>
+#include <qprintdialog.h>
+#include <qlibrary.h>
+#include <qtextstream.h>
+
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+#  include <private/qcups_p.h>
+#  include <cups/cups.h>
+#  include <private/qpdf_p.h>
+#endif
+
+#include <private/qprinterinfo_unix_p.h>
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_PRINTER
+
+class QPrinterInfoPrivate
+{
+Q_DECLARE_PUBLIC(QPrinterInfo)
+public:
+    QPrinterInfoPrivate();
+    QPrinterInfoPrivate(const QString& name);
+    ~QPrinterInfoPrivate();
+
+    static QPrinter::PaperSize string2PaperSize(const QString& str);
+    static QString pageSize2String(QPrinter::PaperSize size);
+
+private:
+    QString                     m_name;
+    bool                        m_isNull;
+    bool                        m_default;
+    QList<QPrinter::PaperSize>  m_paperSizes;
+
+    QPrinterInfo*               q_ptr;
+};
+
+static QPrinterInfoPrivate nullQPrinterInfoPrivate;
+
+/////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////
+
+void qt_perhapsAddPrinter(QList<QPrinterDescription> *printers, const QString &name,
+                               QString host, QString comment,
+                               QStringList aliases)
+{
+    for (int i = 0; i < printers->size(); ++i)
+        if (printers->at(i).samePrinter(name))
+            return;
+
+#ifndef QT_NO_PRINTDIALOG
+    if (host.isEmpty())
+        host = QPrintDialog::tr("locally connected");
+#endif
+    printers->append(QPrinterDescription(name.simplified(), host.simplified(), comment.simplified(), aliases));
+}
+
+void qt_parsePrinterDesc(QString printerDesc, QList<QPrinterDescription> *printers)
+{
+    if (printerDesc.length() < 1)
+        return;
+
+    printerDesc = printerDesc.simplified();
+    int i = printerDesc.indexOf(QLatin1Char(':'));
+    QString printerName, printerComment, printerHost;
+    QStringList aliases;
+
+    if (i >= 0) {
+        // have ':' want '|'
+        int j = printerDesc.indexOf(QLatin1Char('|'));
+        if (j > 0 && j < i) {
+            printerName = printerDesc.left(j);
+            aliases = printerDesc.mid(j + 1, i - j - 1).split(QLatin1Char('|'));
+#ifndef QT_NO_PRINTDIALOG
+            // try extracting a comment from the aliases
+            printerComment = QPrintDialog::tr("Aliases: %1")
+                             .arg(aliases.join(QLatin1String(", ")));
+#endif
+        } else {
+            printerName = printerDesc.left(i);
+        }
+        // look for lprng pseudo all printers entry
+        i = printerDesc.indexOf(QRegExp(QLatin1String(": *all *=")));
+        if (i >= 0)
+            printerName = QString();
+        // look for signs of this being a remote printer
+        i = printerDesc.indexOf(QRegExp(QLatin1String(": *rm *=")));
+        if (i >= 0) {
+            // point k at the end of remote host name
+            while (printerDesc[i] != QLatin1Char('='))
+                i++;
+            while (printerDesc[i] == QLatin1Char('=') || printerDesc[i].isSpace())
+                i++;
+            j = i;
+            while (j < (int)printerDesc.length() && printerDesc[j] != QLatin1Char(':'))
+                j++;
+
+            // and stuff that into the string
+            printerHost = printerDesc.mid(i, j - i);
+        }
+    }
+    if (printerName.length())
+        qt_perhapsAddPrinter(printers, printerName, printerHost, printerComment,
+                             aliases);
+}
+
+int qt_parsePrintcap(QList<QPrinterDescription> *printers, const QString& fileName)
+{
+    QFile printcap(fileName);
+    if (!printcap.open(QIODevice::ReadOnly))
+        return NotFound;
+
+    char *line_ascii = new char[1025];
+    line_ascii[1024] = '\0';
+
+    QString printerDesc;
+    bool atEnd = false;
+
+    while (!atEnd) {
+        if (printcap.atEnd() || printcap.readLine(line_ascii, 1024) <= 0)
+            atEnd = true;
+        QString line = QString::fromLocal8Bit(line_ascii);
+        line = line.trimmed();
+        if (line.length() >= 1 && line[int(line.length()) - 1] == QLatin1Char('\\'))
+            line.chop(1);
+        if (line[0] == QLatin1Char('#')) {
+            if (!atEnd)
+                continue;
+        } else if (line[0] == QLatin1Char('|') || line[0] == QLatin1Char(':')
+                || line.isEmpty()) {
+            printerDesc += line;
+            if (!atEnd)
+                continue;
+        }
+
+        qt_parsePrinterDesc(printerDesc, printers);
+
+        // add the first line of the new printer definition
+        printerDesc = line;
+    }
+    delete[] line_ascii;
+    return Success;
+}
+
+/*!
+  \internal
+
+  Checks $HOME/.printers for a line matching '_default <name>' (where
+  <name> does not contain any white space). The first such match
+  results in <name> being returned.
+  If no lines match then an empty string is returned.
+*/
+QString qt_getDefaultFromHomePrinters()
+{
+    QFile file(QDir::homePath() + QLatin1String("/.printers"));
+    if (!file.open(QIODevice::ReadOnly))
+        return QString();
+    QString all(QLatin1String(file.readAll()));
+    QStringList words = all.split(QRegExp(QLatin1String("\\W+")), QString::SkipEmptyParts);
+    const int i = words.indexOf(QLatin1String("_default"));
+    if (i != -1 && i < words.size() - 1)
+        return words.at(i + 1);
+    return QString();
+}
+
+// solaris, not 2.6
+void qt_parseEtcLpPrinters(QList<QPrinterDescription> *printers)
+{
+    QDir lp(QLatin1String("/etc/lp/printers"));
+    QFileInfoList dirs = lp.entryInfoList();
+    if (dirs.isEmpty())
+        return;
+
+    QString tmp;
+    for (int i = 0; i < dirs.size(); ++i) {
+        QFileInfo printer = dirs.at(i);
+        if (printer.isDir()) {
+            tmp.sprintf("/etc/lp/printers/%s/configuration",
+                         printer.fileName().toAscii().data());
+            QFile configuration(tmp);
+            char *line = new char[1025];
+            QString remote(QLatin1String("Remote:"));
+            QString contentType(QLatin1String("Content types:"));
+            QString printerHost;
+            bool canPrintPostscript = false;
+            if (configuration.open(QIODevice::ReadOnly)) {
+                while (!configuration.atEnd() &&
+                        configuration.readLine(line, 1024) > 0) {
+                    if (QString::fromLatin1(line).startsWith(remote)) {
+                        const char *p = line;
+                        while (*p != ':')
+                            p++;
+                        p++;
+                        while (isspace((uchar) *p))
+                            p++;
+                        printerHost = QString::fromLocal8Bit(p);
+                        printerHost = printerHost.simplified();
+                    } else if (QString::fromLatin1(line).startsWith(contentType)) {
+                        char *p = line;
+                        while (*p != ':')
+                            p++;
+                        p++;
+                        char *e;
+                        while (*p) {
+                            while (isspace((uchar) *p))
+                                p++;
+                            if (*p) {
+                                char s;
+                                e = p;
+                                while (isalnum((uchar) *e))
+                                    e++;
+                                s = *e;
+                                *e = '\0';
+                                if (!qstrcmp(p, "postscript") ||
+                                     !qstrcmp(p, "any"))
+                                    canPrintPostscript = true;
+                                *e = s;
+                                if (s == ',')
+                                    e++;
+                                p = e;
+                            }
+                        }
+                    }
+                }
+                if (canPrintPostscript)
+                    qt_perhapsAddPrinter(printers, printer.fileName(),
+                                         printerHost, QLatin1String(""));
+            }
+            delete[] line;
+        }
+    }
+}
+
+// solaris 2.6
+char *qt_parsePrintersConf(QList<QPrinterDescription> *printers, bool *found)
+{
+    QFile pc(QLatin1String("/etc/printers.conf"));
+    if (!pc.open(QIODevice::ReadOnly)) {
+        if (found)
+            *found = false;
+        return 0;
+    }
+    if (found)
+        *found = true;
+
+    char *line = new char[1025];
+    line[1024] = '\0';
+
+    QString printerDesc;
+    int lineLength = 0;
+
+    char *defaultPrinter = 0;
+
+    while (!pc.atEnd() &&
+            (lineLength=pc.readLine(line, 1024)) > 0) {
+        if (*line == '#') {
+            *line = '\0';
+            lineLength = 0;
+        }
+        if (lineLength >= 2 && line[lineLength-2] == '\\') {
+            line[lineLength-2] = '\0';
+            printerDesc += QString::fromLocal8Bit(line);
+        } else {
+            printerDesc += QString::fromLocal8Bit(line);
+            printerDesc = printerDesc.simplified();
+            int i = printerDesc.indexOf(QLatin1Char(':'));
+            QString printerName, printerHost, printerComment;
+            QStringList aliases;
+            if (i >= 0) {
+                // have : want |
+                int j = printerDesc.indexOf(QLatin1Char('|'));
+                if (j >= i)
+                    j = -1;
+                printerName = printerDesc.mid(0, j < 0 ? i : j);
+                if (printerName == QLatin1String("_default")) {
+                    i = printerDesc.indexOf(
+                        QRegExp(QLatin1String(": *use *=")));
+                    while (printerDesc[i] != QLatin1Char('='))
+                        i++;
+                    while (printerDesc[i] == QLatin1Char('=') || printerDesc[i].isSpace())
+                        i++;
+                    j = i;
+                    while (j < (int)printerDesc.length() &&
+                            printerDesc[j] != QLatin1Char(':') && printerDesc[j] != QLatin1Char(','))
+                        j++;
+                    // that's our default printer
+                    defaultPrinter =
+                        qstrdup(printerDesc.mid(i, j-i).toAscii().data());
+                    printerName = QString();
+                    printerDesc = QString();
+                } else if (printerName == QLatin1String("_all")) {
+                    // skip it.. any other cases we want to skip?
+                    printerName = QString();
+                    printerDesc = QString();
+                }
+
+                if (j > 0) {
+                    // try extracting a comment from the aliases
+                    aliases = printerDesc.mid(j + 1, i - j - 1).split(QLatin1Char('|'));
+#ifndef QT_NO_PRINTDIALOG
+                    printerComment = QPrintDialog::tr("Aliases: %1")
+                                     .arg(aliases.join(QLatin1String(", ")));
+#endif
+                }
+                // look for signs of this being a remote printer
+                i = printerDesc.indexOf(
+                    QRegExp(QLatin1String(": *bsdaddr *=")));
+                if (i >= 0) {
+                    // point k at the end of remote host name
+                    while (printerDesc[i] != QLatin1Char('='))
+                        i++;
+                    while (printerDesc[i] == QLatin1Char('=') || printerDesc[i].isSpace())
+                        i++;
+                    j = i;
+                    while (j < (int)printerDesc.length() &&
+                            printerDesc[j] != QLatin1Char(':') && printerDesc[j] != QLatin1Char(','))
+                        j++;
+                    // and stuff that into the string
+                    printerHost = printerDesc.mid(i, j-i);
+                    // maybe stick the remote printer name into the comment
+                    if (printerDesc[j] == QLatin1Char(',')) {
+                        i = ++j;
+                        while (printerDesc[i].isSpace())
+                            i++;
+                        j = i;
+                        while (j < (int)printerDesc.length() &&
+                                printerDesc[j] != QLatin1Char(':') && printerDesc[j] != QLatin1Char(','))
+                            j++;
+                        if (printerName != printerDesc.mid(i, j-i)) {
+                            printerComment =
+                                QLatin1String("Remote name: ");
+                            printerComment += printerDesc.mid(i, j-i);
+                        }
+                    }
+                }
+            }
+            if (printerComment == QLatin1String(":"))
+                printerComment = QString(); // for cups
+            if (printerName.length())
+                qt_perhapsAddPrinter(printers, printerName, printerHost,
+                                     printerComment, aliases);
+            // chop away the line, for processing the next one
+            printerDesc = QString();
+        }
+    }
+    delete[] line;
+    return defaultPrinter;
+}
+
+#ifndef QT_NO_NIS
+
+#if defined(Q_C_CALLBACKS)
+extern "C" {
+#endif
+
+int qt_pd_foreach(int /*status */, char * /*key */, int /*keyLen */,
+                    char *val, int valLen, char *data)
+{
+    qt_parsePrinterDesc(QString::fromLatin1(val, valLen), (QList<QPrinterDescription> *)data);
+    return 0;
+}
+
+#if defined(Q_C_CALLBACKS)
+}
+#endif
+
+int qt_retrieveNisPrinters(QList<QPrinterDescription> *printers)
+{
+    typedef int (*WildCast)(int, char *, int, char *, int, char *);
+    char printersConfByname[] = "printers.conf.byname";
+    char *domain;
+    int err;
+
+    QLibrary lib(QLatin1String("nsl"));
+    typedef int (*ypGetDefaultDomain)(char **);
+    ypGetDefaultDomain _ypGetDefaultDomain = (ypGetDefaultDomain)lib.resolve("yp_get_default_domain");
+    typedef int (*ypAll)(const char *, const char *, const struct ypall_callback *);
+    ypAll _ypAll = (ypAll)lib.resolve("yp_all");
+
+    if (_ypGetDefaultDomain && _ypAll) {
+        err = _ypGetDefaultDomain(&domain);
+        if (err == 0) {
+            ypall_callback cb;
+            // wild cast to support K&R-style system headers
+            (WildCast &) cb.foreach = (WildCast) qt_pd_foreach;
+            cb.data = (char *) printers;
+            err = _ypAll(domain, printersConfByname, &cb);
+        }
+        if (!err)
+            return Success;
+    }
+    return Unavail;
+}
+
+#endif // QT_NO_NIS
+
+char *qt_parseNsswitchPrintersEntry(QList<QPrinterDescription> *printers, char *line)
+{
+#define skipSpaces() \
+    while (line[k] != '\0' && isspace((uchar) line[k])) \
+        k++
+
+    char *defaultPrinter = 0;
+    bool stop = false;
+    int lastStatus = NotFound;
+
+    int k = 8;
+    skipSpaces();
+    if (line[k] != ':')
+        return 0;
+    k++;
+
+    char *cp = strchr(line, '#');
+    if (cp != 0)
+        *cp = '\0';
+
+    while (line[k] != '\0') {
+        if (isspace((uchar) line[k])) {
+            k++;
+        } else if (line[k] == '[') {
+            k++;
+            skipSpaces();
+            while (line[k] != '\0') {
+                char status = tolower(line[k]);
+                char action = '?';
+
+                while (line[k] != '=' && line[k] != ']' && line[k] != '\0')
+                    k++;
+                if (line[k] == '=') {
+                    k++;
+                    skipSpaces();
+                    action = tolower(line[k]);
+                    while (line[k] != '\0' && !isspace((uchar) line[k]) && line[k] != ']')
+                        k++;
+                } else if (line[k] == ']') {
+                    k++;
+                    break;
+                }
+                skipSpaces();
+
+                if (lastStatus == status)
+                    stop = (action == (char) Return);
+            }
+        } else {
+            if (stop)
+                break;
+
+            QByteArray source;
+            while (line[k] != '\0' && !isspace((uchar) line[k]) && line[k] != '[') {
+                source += line[k];
+                k++;
+            }
+
+            if (source == "user") {
+                lastStatus = qt_parsePrintcap(printers,
+                        QDir::homePath() + QLatin1String("/.printers"));
+            } else if (source == "files") {
+                bool found;
+                defaultPrinter = qt_parsePrintersConf(printers, &found);
+                if (found)
+                    lastStatus = Success;
+#ifndef QT_NO_NIS
+            } else if (source == "nis") {
+                lastStatus = qt_retrieveNisPrinters(printers);
+#endif
+            } else {
+                // nisplus, dns, etc., are not implemented yet
+                lastStatus = NotFound;
+            }
+            stop = (lastStatus == Success);
+        }
+    }
+    return defaultPrinter;
+}
+
+char *qt_parseNsswitchConf(QList<QPrinterDescription> *printers)
+{
+    QFile nc(QLatin1String("/etc/nsswitch.conf"));
+    if (!nc.open(QIODevice::ReadOnly))
+        return 0;
+
+    char *defaultPrinter = 0;
+
+    char *line = new char[1025];
+    line[1024] = '\0';
+
+    while (!nc.atEnd() &&
+            nc.readLine(line, 1024) > 0) {
+        if (qstrncmp(line, "printers", 8) == 0) {
+            defaultPrinter = qt_parseNsswitchPrintersEntry(printers, line);
+            delete[] line;
+            return defaultPrinter;
+        }
+    }
+
+    strcpy(line, "printers: user files nis nisplus xfn");
+    defaultPrinter = qt_parseNsswitchPrintersEntry(printers, line);
+    delete[] line;
+    return defaultPrinter;
+}
+
+// HP-UX
+void qt_parseEtcLpMember(QList<QPrinterDescription> *printers)
+{
+    QDir lp(QLatin1String("/etc/lp/member"));
+    if (!lp.exists())
+        return;
+    QFileInfoList dirs = lp.entryInfoList();
+    if (dirs.isEmpty())
+        return;
+
+#ifdef QT_NO_PRINTDIALOG
+    Q_UNUSED(printers);
+#else
+    QString tmp;
+    for (int i = 0; i < dirs.size(); ++i) {
+        QFileInfo printer = dirs.at(i);
+        // I haven't found any real documentation, so I'm guessing that
+        // since lpstat uses /etc/lp/member rather than one of the
+        // other directories, it's the one to use.  I did not find a
+        // decent way to locate aliases and remote printers.
+        if (printer.isFile())
+            qt_perhapsAddPrinter(printers, printer.fileName(),
+                                 QPrintDialog::tr("unknown"),
+                                 QLatin1String(""));
+    }
+#endif
+}
+
+// IRIX 6.x
+void qt_parseSpoolInterface(QList<QPrinterDescription> *printers)
+{
+    QDir lp(QLatin1String("/usr/spool/lp/interface"));
+    if (!lp.exists())
+        return;
+    QFileInfoList files = lp.entryInfoList();
+    if(files.isEmpty())
+        return;
+
+    for (int i = 0; i < files.size(); ++i) {
+        QFileInfo printer = files.at(i);
+
+        if (!printer.isFile())
+            continue;
+
+        // parse out some information
+        QFile configFile(printer.filePath());
+        if (!configFile.open(QIODevice::ReadOnly))
+            continue;
+
+        QByteArray line;
+        line.resize(1025);
+        QString namePrinter;
+        QString hostName;
+        QString hostPrinter;
+        QString printerType;
+
+        QString nameKey(QLatin1String("NAME="));
+        QString typeKey(QLatin1String("TYPE="));
+        QString hostKey(QLatin1String("HOSTNAME="));
+        QString hostPrinterKey(QLatin1String("HOSTPRINTER="));
+
+        while (!configFile.atEnd() &&
+                (configFile.readLine(line.data(), 1024)) > 0) {
+            QString uline = QString::fromLocal8Bit(line);
+            if (uline.startsWith(typeKey) ) {
+                printerType = uline.mid(nameKey.length());
+                printerType = printerType.simplified();
+            } else if (uline.startsWith(hostKey)) {
+                hostName = uline.mid(hostKey.length());
+                hostName = hostName.simplified();
+            } else if (uline.startsWith(hostPrinterKey)) {
+                hostPrinter = uline.mid(hostPrinterKey.length());
+                hostPrinter = hostPrinter.simplified();
+            } else if (uline.startsWith(nameKey)) {
+                namePrinter = uline.mid(nameKey.length());
+                namePrinter = namePrinter.simplified();
+            }
+        }
+        configFile.close();
+
+        printerType = printerType.trimmed();
+        if (printerType.indexOf(QLatin1String("postscript"), 0, Qt::CaseInsensitive) < 0)
+            continue;
+
+        int ii = 0;
+        while ((ii = namePrinter.indexOf(QLatin1Char('"'), ii)) >= 0)
+            namePrinter.remove(ii, 1);
+
+        if (hostName.isEmpty() || hostPrinter.isEmpty()) {
+            qt_perhapsAddPrinter(printers, printer.fileName(),
+                                 QLatin1String(""), namePrinter);
+        } else {
+            QString comment;
+            comment = namePrinter;
+            comment += QLatin1String(" (");
+            comment += hostPrinter;
+            comment += QLatin1Char(')');
+            qt_perhapsAddPrinter(printers, printer.fileName(),
+                                 hostName, comment);
+        }
+    }
+}
+
+
+// Every unix must have its own.  It's a standard.  Here is AIX.
+void qt_parseQconfig(QList<QPrinterDescription> *printers)
+{
+    QFile qconfig(QLatin1String("/etc/qconfig"));
+    if (!qconfig.open(QIODevice::ReadOnly))
+        return;
+
+    QTextStream ts(&qconfig);
+    QString line;
+
+    QString stanzaName; // either a queue or a device name
+    bool up = true; // queue up?  default true, can be false
+    QString remoteHost; // null if local
+    QString deviceName; // null if remote
+
+    QRegExp newStanza(QLatin1String("^[0-z\\-]*:$"));
+
+    // our basic strategy here is to process each line, detecting new
+    // stanzas.  each time we see a new stanza, we check if the
+    // previous stanza was a valid queue for a) a remote printer or b)
+    // a local printer.  if it wasn't, we assume that what we see is
+    // the start of the first stanza, or that the previous stanza was
+    // a device stanza, or that there is some syntax error (we don't
+    // report those).
+
+    do {
+        line = ts.readLine();
+        bool indented = line[0].isSpace();
+        line = line.simplified();
+
+        int i = line.indexOf(QLatin1Char('='));
+        if (indented && i != -1) { // line in stanza
+            QString variable = line.left(i).simplified();
+            QString value=line.mid(i+1, line.length()).simplified();
+            if (variable == QLatin1String("device"))
+                deviceName = value;
+            else if (variable == QLatin1String("host"))
+                remoteHost = value;
+            else if (variable == QLatin1String("up"))
+                up = !(value.toLower() == QLatin1String("false"));
+        } else if (line[0] == QLatin1Char('*')) { // comment
+            // nothing to do
+        } else if (ts.atEnd() || // end of file, or beginning of new stanza
+                    (!indented && line.contains(newStanza))) {
+            if (up && stanzaName.length() > 0 && stanzaName.length() < 21) {
+                if (remoteHost.length()) // remote printer
+                    qt_perhapsAddPrinter(printers, stanzaName, remoteHost,
+                                         QString());
+                else if (deviceName.length()) // local printer
+                    qt_perhapsAddPrinter(printers, stanzaName, QString(),
+                                         QString());
+            }
+            line.chop(1);
+            if (line.length() >= 1 && line.length() <= 20)
+                stanzaName = line;
+            up = true;
+            remoteHost.clear();
+            deviceName.clear();
+        } else {
+            // syntax error?  ignore.
+        }
+    } while (!ts.atEnd());
+}
+
+int qt_getLprPrinters(QList<QPrinterDescription>& printers)
+{
+    QByteArray etcLpDefault;
+    qt_parsePrintcap(&printers, QLatin1String("/etc/printcap"));
+    qt_parseEtcLpMember(&printers);
+    qt_parseSpoolInterface(&printers);
+    qt_parseQconfig(&printers);
+
+    QFileInfo f;
+    f.setFile(QLatin1String("/etc/lp/printers"));
+    if (f.isDir()) {
+        qt_parseEtcLpPrinters(&printers);
+        QFile def(QLatin1String("/etc/lp/default"));
+        if (def.open(QIODevice::ReadOnly)) {
+            etcLpDefault.resize(1025);
+            if (def.readLine(etcLpDefault.data(), 1024) > 0) {
+                QRegExp rx(QLatin1String("^(\\S+)"));
+                if (rx.indexIn(QString::fromLatin1(etcLpDefault)) != -1)
+                    etcLpDefault = rx.cap(1).toAscii();
+            }
+        }
+    }
+
+    char *def = 0;
+    f.setFile(QLatin1String("/etc/nsswitch.conf"));
+    if (f.isFile()) {
+        def = qt_parseNsswitchConf(&printers);
+    } else {
+        f.setFile(QLatin1String("/etc/printers.conf"));
+        if (f.isFile())
+            def = qt_parsePrintersConf(&printers);
+    }
+
+    if (def) {
+        etcLpDefault = def;
+        delete [] def;
+    }
+
+    QString homePrintersDefault = qt_getDefaultFromHomePrinters();
+
+    // all printers hopefully known.  try to find a good default
+    QString dollarPrinter;
+    {
+        dollarPrinter = QString::fromLocal8Bit(qgetenv("PRINTER"));
+        if (dollarPrinter.isEmpty())
+            dollarPrinter = QString::fromLocal8Bit(qgetenv("LPDEST"));
+        if (dollarPrinter.isEmpty())
+            dollarPrinter = QString::fromLocal8Bit(qgetenv("NPRINTER"));
+        if (dollarPrinter.isEmpty())
+            dollarPrinter = QString::fromLocal8Bit(qgetenv("NGPRINTER"));
+#ifndef QT_NO_PRINTDIALOG
+        if (!dollarPrinter.isEmpty())
+            qt_perhapsAddPrinter(&printers, dollarPrinter,
+                                 QPrintDialog::tr("unknown"),
+                                 QLatin1String(""));
+#endif
+    }
+
+    int quality = 0;
+    int best = 0;
+    for (int i = 0; i < printers.size(); ++i) {
+        QRegExp ps(QLatin1String("[^a-z]ps(?:[^a-z]|$)"));
+        QRegExp lp(QLatin1String("[^a-z]lp(?:[^a-z]|$)"));
+
+        QString name = printers.at(i).name;
+        QString comment = printers.at(i).comment;
+        if (quality < 5 && name == dollarPrinter) {
+            best = i;
+            quality = 5;
+        } else if (quality < 4 && !homePrintersDefault.isEmpty() &&
+                   name == homePrintersDefault) {
+            best = i;
+            quality = 4;
+        } else if (quality < 3 && !etcLpDefault.isEmpty() &&
+                    name == QLatin1String(etcLpDefault)) {
+            best = i;
+            quality = 3;
+        } else if (quality < 2 &&
+                    (name == QLatin1String("ps") ||
+                     ps.indexIn(comment) != -1)) {
+            best = i;
+            quality = 2;
+        } else if (quality < 1 &&
+                    (name == QLatin1String("lp") ||
+                     lp.indexIn(comment) > -1)) {
+            best = i;
+            quality = 1;
+        }
+    }
+
+    return best;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////
+
+QList<QPrinterInfo> QPrinterInfo::availablePrinters()
+{
+    QList<QPrinterInfo> list;
+
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+    QCUPSSupport cups;
+    if (QCUPSSupport::isAvailable()) {
+        //const ppd_file_t* cupsPPD = cups.currentPPD();
+        int cupsPrinterCount = cups.availablePrintersCount();
+        const cups_dest_t* cupsPrinters = cups.availablePrinters();
+
+        for (int i = 0; i < cupsPrinterCount; ++i) {
+            QString printerName(QString::fromLocal8Bit(cupsPrinters[i].name));
+            if (cupsPrinters[i].instance)
+                printerName += QLatin1String("/") + QString::fromLocal8Bit(cupsPrinters[i].instance);
+            list.append(QPrinterInfo(printerName));
+            if (cupsPrinters[i].is_default)
+                list[i].d_ptr->m_default = true;
+            // Find paper sizes.
+            cups.setCurrentPrinter(i);
+            const ppd_option_t* sizes = cups.pageSizes();
+            if (sizes) {
+                for (int j = 0; j < sizes->num_choices; ++j) {
+                    list[i].d_ptr->m_paperSizes.append(
+                            QPrinterInfoPrivate::string2PaperSize(
+                            QLatin1String(sizes->choices[j].choice)));
+                }
+            }
+        }
+    } else {
+#endif
+        QList<QPrinterDescription> lprPrinters;
+        int defprn = qt_getLprPrinters(lprPrinters);
+        // populating printer combo
+        QList<QPrinterDescription>::const_iterator i = lprPrinters.constBegin();
+        for(; i != lprPrinters.constEnd(); ++i) {
+            list.append(QPrinterInfo((*i).name));
+        }
+        if (defprn >= 0 && defprn < lprPrinters.size()) {
+            list[defprn].d_ptr->m_default = true;
+        }
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+    }
+#endif
+
+    return list;
+}
+
+QPrinterInfo QPrinterInfo::defaultPrinter()
+{
+    QList<QPrinterInfo> prnList = availablePrinters();
+    for (int i = 0; i < prnList.size(); ++i) {
+        if (prnList[i].isDefault())
+            return prnList[i];
+    }
+    return (prnList.size() > 0) ? prnList[0] : QPrinterInfo();
+}
+
+QPrinterInfo::QPrinterInfo()
+{
+    d_ptr = &nullQPrinterInfoPrivate;
+}
+
+QPrinterInfo::QPrinterInfo(const QPrinterInfo& src)
+{
+    d_ptr = &nullQPrinterInfoPrivate;
+    *this = src;
+}
+
+QPrinterInfo::QPrinterInfo(const QPrinter& printer)
+{
+    d_ptr = new QPrinterInfoPrivate(printer.printerName());
+
+    Q_D(QPrinterInfo);
+    d->q_ptr = this;
+
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+    QCUPSSupport cups;
+    if (QCUPSSupport::isAvailable()) {
+        int cupsPrinterCount = cups.availablePrintersCount();
+        const cups_dest_t* cupsPrinters = cups.availablePrinters();
+
+        for (int i = 0; i < cupsPrinterCount; ++i) {
+            QString printerName(QString::fromLocal8Bit(cupsPrinters[i].name));
+            if (cupsPrinters[i].instance)
+                printerName += QLatin1String("/") + QString::fromLocal8Bit(cupsPrinters[i].instance);
+            if (printerName == printer.printerName()) {
+                if (cupsPrinters[i].is_default)
+                    d->m_default = true;
+                // Find paper sizes.
+                cups.setCurrentPrinter(i);
+                const ppd_option_t* sizes = cups.pageSizes();
+                if (sizes) {
+                    for (int j = 0; j < sizes->num_choices; ++j) {
+                        d->m_paperSizes.append(
+                                QPrinterInfoPrivate::string2PaperSize(
+                                QLatin1String(sizes->choices[j].choice)));
+                    }
+                }
+                return;
+            }
+        }
+    } else {
+#endif
+        QList<QPrinterDescription> lprPrinters;
+        int defprn = qt_getLprPrinters(lprPrinters);
+        // populating printer combo
+        QList<QPrinterDescription>::const_iterator i = lprPrinters.constBegin();
+        int c;
+        for(c = 0; i != lprPrinters.constEnd(); ++i, ++c) {
+            if (i->name == printer.printerName()) {
+                if (defprn == c)
+                    d->m_default = true;
+                return;
+            }
+        }
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+    }
+#endif
+
+    // Printer not found.
+    delete d;
+    d_ptr = &nullQPrinterInfoPrivate;
+}
+
+QPrinterInfo::QPrinterInfo(const QString& name)
+{
+    d_ptr = new QPrinterInfoPrivate(name);
+    d_ptr->q_ptr = this;
+}
+
+QPrinterInfo::~QPrinterInfo()
+{
+    if (d_ptr != &nullQPrinterInfoPrivate)
+        delete d_ptr;
+}
+
+QPrinterInfo& QPrinterInfo::operator=(const QPrinterInfo& src)
+{
+    Q_ASSERT(d_ptr);
+    if (d_ptr != &nullQPrinterInfoPrivate)
+        delete d_ptr;
+    d_ptr = new QPrinterInfoPrivate(*src.d_ptr);
+    d_ptr->q_ptr = this;
+    return *this;
+}
+
+QString QPrinterInfo::printerName() const
+{
+    const Q_D(QPrinterInfo);
+    return d->m_name;
+}
+
+bool QPrinterInfo::isNull() const
+{
+    const Q_D(QPrinterInfo);
+    return d->m_isNull;
+}
+
+bool QPrinterInfo::isDefault() const
+{
+    const Q_D(QPrinterInfo);
+    return d->m_default;
+}
+
+QList< QPrinter::PaperSize> QPrinterInfo::supportedPaperSizes() const
+{
+    const Q_D(QPrinterInfo);
+    return d->m_paperSizes;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////
+
+QPrinterInfoPrivate::QPrinterInfoPrivate()
+{
+    m_isNull = true;
+    m_default = false;
+    q_ptr = 0;
+}
+
+QPrinterInfoPrivate::QPrinterInfoPrivate(const QString& name)
+{
+    m_name = name;
+    m_isNull = false;
+    m_default = false;
+    q_ptr = 0;
+}
+
+QPrinterInfoPrivate::~QPrinterInfoPrivate()
+{
+}
+
+QPrinter::PaperSize QPrinterInfoPrivate::string2PaperSize(const QString& str)
+{
+    if (str == QLatin1String("A4")) {
+        return QPrinter::A4;
+    } else if (str == QLatin1String("B5")) {
+        return QPrinter::B5;
+    } else if (str == QLatin1String("Letter")) {
+        return QPrinter::Letter;
+    } else if (str == QLatin1String("Legal")) {
+        return QPrinter::Legal;
+    } else if (str == QLatin1String("Executive")) {
+        return QPrinter::Executive;
+    } else if (str == QLatin1String("A0")) {
+        return QPrinter::A0;
+    } else if (str == QLatin1String("A1")) {
+        return QPrinter::A1;
+    } else if (str == QLatin1String("A2")) {
+        return QPrinter::A2;
+    } else if (str == QLatin1String("A3")) {
+        return QPrinter::A3;
+    } else if (str == QLatin1String("A5")) {
+        return QPrinter::A5;
+    } else if (str == QLatin1String("A6")) {
+        return QPrinter::A6;
+    } else if (str == QLatin1String("A7")) {
+        return QPrinter::A7;
+    } else if (str == QLatin1String("A8")) {
+        return QPrinter::A8;
+    } else if (str == QLatin1String("A9")) {
+        return QPrinter::A9;
+    } else if (str == QLatin1String("B0")) {
+        return QPrinter::B0;
+    } else if (str == QLatin1String("B1")) {
+        return QPrinter::B1;
+    } else if (str == QLatin1String("B10")) {
+        return QPrinter::B10;
+    } else if (str == QLatin1String("B2")) {
+        return QPrinter::B2;
+    } else if (str == QLatin1String("B3")) {
+        return QPrinter::B3;
+    } else if (str == QLatin1String("B4")) {
+        return QPrinter::B4;
+    } else if (str == QLatin1String("B6")) {
+        return QPrinter::B6;
+    } else if (str == QLatin1String("B7")) {
+        return QPrinter::B7;
+    } else if (str == QLatin1String("B8")) {
+        return QPrinter::B8;
+    } else if (str == QLatin1String("B9")) {
+        return QPrinter::B9;
+    } else if (str == QLatin1String("C5E")) {
+        return QPrinter::C5E;
+    } else if (str == QLatin1String("Comm10E")) {
+        return QPrinter::Comm10E;
+    } else if (str == QLatin1String("DLE")) {
+        return QPrinter::DLE;
+    } else if (str == QLatin1String("Folio")) {
+        return QPrinter::Folio;
+    } else if (str == QLatin1String("Ledger")) {
+        return QPrinter::Ledger;
+    } else if (str == QLatin1String("Tabloid")) {
+        return QPrinter::Tabloid;
+    } else {
+        return QPrinter::Custom;
+    }
+}
+
+QString QPrinterInfoPrivate::pageSize2String(QPrinter::PaperSize size)
+{
+    switch (size) {
+    case QPrinter::A4:
+        return QLatin1String("A4");
+    case QPrinter::B5:
+        return QLatin1String("B5");
+    case QPrinter::Letter:
+        return QLatin1String("Letter");
+    case QPrinter::Legal:
+        return QLatin1String("Legal");
+    case QPrinter::Executive:
+        return QLatin1String("Executive");
+    case QPrinter::A0:
+        return QLatin1String("A0");
+    case QPrinter::A1:
+        return QLatin1String("A1");
+    case QPrinter::A2:
+        return QLatin1String("A2");
+    case QPrinter::A3:
+        return QLatin1String("A3");
+    case QPrinter::A5:
+        return QLatin1String("A5");
+    case QPrinter::A6:
+        return QLatin1String("A6");
+    case QPrinter::A7:
+        return QLatin1String("A7");
+    case QPrinter::A8:
+        return QLatin1String("A8");
+    case QPrinter::A9:
+        return QLatin1String("A9");
+    case QPrinter::B0:
+        return QLatin1String("B0");
+    case QPrinter::B1:
+        return QLatin1String("B1");
+    case QPrinter::B10:
+        return QLatin1String("B10");
+    case QPrinter::B2:
+        return QLatin1String("B2");
+    case QPrinter::B3:
+        return QLatin1String("B3");
+    case QPrinter::B4:
+        return QLatin1String("B4");
+    case QPrinter::B6:
+        return QLatin1String("B6");
+    case QPrinter::B7:
+        return QLatin1String("B7");
+    case QPrinter::B8:
+        return QLatin1String("B8");
+    case QPrinter::B9:
+        return QLatin1String("B9");
+    case QPrinter::C5E:
+        return QLatin1String("C5E");
+    case QPrinter::Comm10E:
+        return QLatin1String("Comm10E");
+    case QPrinter::DLE:
+        return QLatin1String("DLE");
+    case QPrinter::Folio:
+        return QLatin1String("Folio");
+    case QPrinter::Ledger:
+        return QLatin1String("Ledger");
+    case QPrinter::Tabloid:
+        return QLatin1String("Tabloid");
+    default:
+        return QLatin1String("Custom");
+    }
+}
+
+#endif // QT_NO_PRINTER
+
+QT_END_NAMESPACE