Long live Qt!

1 files changed, 969 insertions, 0 deletions

diff --git a/src/gui/painting/qprintengine_ps.cpp b/src/gui/painting/qprintengine_ps.cpp
new file mode 100644
index 0000000..97ec640
--- /dev/null
+++ b/src/gui/painting/qprintengine_ps.cpp
@@ -0,0 +1,969 @@
+/****************************************************************************
+**
+** 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 "qplatformdefs.h"
+
+#include <private/qprintengine_ps_p.h>
+#include <private/qpainter_p.h>
+#include <private/qfontengine_p.h>
+#include <private/qpaintengine_p.h>
+#include <private/qpdf_p.h>
+
+#ifndef QT_NO_PRINTER
+
+#include "qprinter.h"
+#include "qpainter.h"
+#include "qapplication.h"
+#include "qpixmap.h"
+#include "qimage.h"
+#include "qdatetime.h"
+#include "qstring.h"
+#include "qbytearray.h"
+#include "qhash.h"
+#include "qbuffer.h"
+#include "qsettings.h"
+#include "qmap.h"
+#include "qbitmap.h"
+#include "qregion.h"
+#include "qimagewriter.h"
+#include <private/qunicodetables_p.h>
+#include <private/qpainterpath_p.h>
+#include <qdebug.h>
+#include <private/qdrawhelper_p.h>
+#include <private/qmutexpool_p.h>
+
+#ifndef Q_OS_WIN
+#include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <limits.h>
+
+QT_BEGIN_NAMESPACE
+
+static bool qt_gen_epsf = false;
+
+void qt_generate_epsf(bool b)
+{
+    qt_gen_epsf = b;
+}
+
+static const char *const ps_header =
+"/BD{bind def}bind def/d2{dup dup}BD/ED{exch def}BD/D0{0 ED}BD/F{setfont}BD\n"
+"/RL{rlineto}BD/CM{currentmatrix}BD/SM{setmatrix}BD/TR{translate}BD/SD\n"
+"{setdash}BD/SC{aload pop setrgbcolor}BD/CR{currentfile read pop}BD/i{index}\n"
+"BD/scs{setcolorspace}BD/DB{dict dup begin}BD/DE{end def}BD/ie{ifelse}BD/gs\n"
+"{gsave}BD/gr{grestore}BD/w{setlinewidth}BD/d{setdash}BD/J{setlinecap}BD/j\n"
+"{setlinejoin}BD/scn{3 array astore/BCol exch def}BD/SCN{3 array astore/PCol\n"
+"exch def}BD/cm{6 array astore concat}BD/m{moveto}BD/l{lineto}BD/c{curveto}BD\n"
+"/h{closepath}BD/W{clip}BD/W*{eoclip}BD/n{newpath}BD/q{gsave 10 dict begin}BD\n"
+"/Q{end grestore}BD/re{4 2 roll m dup 0 exch RL exch 0 RL 0 exch neg RL h}BD\n"
+"/S{gs PCol SC stroke gr n}BD/BT{gsave 10 dict begin/_m matrix CM def BCol\n"
+"SC}BD/ET{end grestore}BD/Tf{/_fs ED findfont[_fs 0 0 _fs 0 0]makefont F}BD\n"
+"/Tm{6 array astore concat}BD/Td{translate}BD/Tj{0 0 m show}BD/BDC{pop pop}BD\n"
+"/EMC{}BD/BSt 0 def/WFi false def/BCol[1 1 1]def/PCol[0 0 0]def/BDArr[0.94\n"
+"0.88 0.63 0.50 0.37 0.12 0.06]def/level3{/languagelevel where{pop\n"
+"languagelevel 3 ge}{false}ie}BD/QCIgray D0/QCIcolor D0/QCIindex D0/QCI{\n"
+"/colorimage where{pop false 3 colorimage}{exec/QCIcolor ED/QCIgray QCIcolor\n"
+"length 3 idiv string def 0 1 QCIcolor length 3 idiv 1 sub{/QCIindex ED/_x\n"
+"QCIindex 3 mul def QCIgray QCIindex QCIcolor _x get 0.30 mul QCIcolor _x 1\n"
+"add get 0.59 mul QCIcolor _x 2 add get 0.11 mul add add cvi put}for QCIgray\n"
+"image}ie}BD/di{gs TR 1 i 1 eq{pop pop false 3 1 roll BCol SC imagemask}{dup\n"
+"false ne{level3}{false}ie{/_ma ED 8 eq{/_dc[0 1]def/DeviceGray}{/_dc[0 1 0 1\n"
+"0 1]def/DeviceRGB}ie scs/_im ED/_mt ED/_h ED/_w ED <</ImageType 3/DataDict\n"
+"<</ImageType 1/Width _w/Height _h/ImageMatrix _mt/DataSource _im\n"
+"/BitsPerComponent 8/Decode _dc >>/MaskDict <</ImageType 1/Width _w/Height _h\n"
+"/ImageMatrix _mt/DataSource _ma/BitsPerComponent 1/Decode[0 1]>>\n"
+"/InterleaveType 3 >> image}{pop 8 4 1 roll 8 eq{image}{QCI}ie}ie}ie gr}BD/BF\n"
+"{gs BSt 1 eq{BCol SC WFi{fill}{eofill}ie}if BSt 2 ge BSt 8 le and{BDArr BSt\n"
+"2 sub get/_sc ED BCol{1. exch sub _sc mul 1. exch sub}forall 3 array astore\n"
+"SC WFi{fill}{eofill}ie}if BSt 9 ge BSt 14 le and{WFi{W}{W*}ie pathbbox 3 i 3\n"
+"i TR 4 2 roll 3 2 roll exch sub/_h ED sub/_w ED BCol SC 0.3 w n BSt 9 eq BSt\n"
+"11 eq or{0 4 _h{dup 0 exch m _w exch l}for}if BSt 10 eq BSt 11 eq or{0 4 _w{\n"
+"dup 0 m _h l}for}if BSt 12 eq BSt 14 eq or{_w _h gt{0 6 _w _h add{dup 0 m _h\n"
+"sub _h l}for}{0 6 _w _h add{dup 0 exch m _w sub _w exch l}for}ie}if BSt 13\n"
+"eq BSt 14 eq or{_w _h gt{0 6 _w _h add{dup _h m _h sub 0 l}for}{0 6 _w _h\n"
+"add{dup _w exch m _w sub 0 exch l}for}ie}if stroke}if BSt 15 eq{}if BSt 24\n"
+"eq{}if gr}BD/f{/WFi true def BF n}BD/f*{/WFi false def BF n}BD/B{/WFi true\n"
+"def BF S n}BD/B*{/WFi false def BF S n}BD/QI{/C save def pageinit q n}BD/QP{\n"
+"Q C restore showpage}BD/SPD{/setpagedevice where{<< 3 1 roll >>\n"
+"setpagedevice}{pop pop}ie}BD/T1AddMapping{10 dict begin/glyphs ED/fnt ED\n"
+"/current fnt/NumGlyphs get def/CMap fnt/CMap get def 0 1 glyphs length 1 sub\n"
+"{glyphs exch get/gn ED current dup 256 mod/min ED 256 idiv/maj ED CMap dup\n"
+"maj get dup null eq{pop 256 array 0 1 255{1 i exch/.notdef put}for}if dup\n"
+"min gn put maj exch put/current current 1 add def}for fnt/CMap CMap put fnt\n"
+"/NumGlyphs current put end}def/T1AddGlyphs{10 dict begin/glyphs ED/fnt ED\n"
+"/current fnt/NumGlyphs get def/CMap fnt/CMap get def/CharStrings fnt\n"
+"/CharStrings get def 0 1 glyphs length 2 idiv 1 sub{2 mul dup glyphs exch\n"
+"get/gn ED 1 add glyphs exch get/cs ED current dup 256 mod/min ED 256 idiv\n"
+"/maj ED CMap dup maj get dup null eq{pop 256 array 0 1 255{1 i exch/.notdef\n"
+"put}for}if dup min gn put maj exch put CharStrings gn cs put/current current\n"
+"1 add def}for fnt/CharStrings CharStrings put fnt/CMap CMap put fnt\n"
+"/NumGlyphs current put end}def/StringAdd{1 i length 1 i length add string 3\n"
+"1 roll 2 i 0 3 i putinterval 2 i 2 i length 2 i putinterval pop pop}def\n"
+"/T1Setup{10 dict begin dup/FontName ED (-Base) StringAdd cvx cvn/Font ED\n"
+"/MaxPage Font/NumGlyphs get 1 sub 256 idiv def/FDepVector MaxPage 1 add\n"
+"array def/Encoding MaxPage 1 add array def 0 1 MaxPage{dup Encoding exch dup\n"
+"put dup/Page ED FontName (-) StringAdd exch 20 string cvs StringAdd cvn Font\n"
+"0 dict copy d2/CMap get Page get/Encoding exch put definefont FDepVector\n"
+"exch Page exch put}for FontName cvn <</FontType 0/FMapType 2/FontMatrix[1 0\n"
+"0 1 0 0]/Encoding Encoding/FDepVector FDepVector >> definefont pop end}def\n";
+
+
+
+// ------------------------------End of static data ----------------------------------
+
+// make sure DSC comments are not longer than 255 chars per line.
+static QByteArray wrapDSC(const QByteArray &str)
+{
+    QByteArray dsc = str.simplified();
+    const int wrapAt = 254;
+    QByteArray wrapped;
+    if (dsc.length() < wrapAt)
+        wrapped = dsc;
+    else {
+        wrapped = dsc.left(wrapAt);
+        QByteArray tmp = dsc.mid(wrapAt);
+        while (tmp.length() > wrapAt-3) {
+            wrapped += "\n%%+" + tmp.left(wrapAt-3);
+            tmp = tmp.mid(wrapAt-3);
+        }
+        wrapped += "\n%%+" + tmp;
+    }
+    return wrapped + "\n";
+}
+
+// ----------------------------- Internal class declarations -----------------------------
+
+QPSPrintEnginePrivate::QPSPrintEnginePrivate(QPrinter::PrinterMode m)
+    : QPdfBaseEnginePrivate(m),
+      printerState(QPrinter::Idle), hugeDocument(false), headerDone(false)
+{
+    useAlphaEngine = true;
+    postscript = true;
+
+    firstPage = true;
+
+#ifndef QT_NO_SETTINGS
+    QSettings settings(QSettings::UserScope, QLatin1String("Trolltech"));
+    settings.beginGroup(QLatin1String("Qt"));
+    embedFonts = settings.value(QLatin1String("embedFonts"), true).toBool();
+#else
+    embedFonts = true;
+#endif
+}
+
+QPSPrintEnginePrivate::~QPSPrintEnginePrivate()
+{
+}
+
+QT_BEGIN_INCLUDE_NAMESPACE
+#include <qdebug.h>
+QT_END_INCLUDE_NAMESPACE
+
+static void ps_r7(QPdf::ByteStream& stream, const char * s, int l)
+{
+    int i = 0;
+    uchar line[84];
+    int col = 0;
+
+    while(i < l) {
+        line[col++] = s[i++];
+        if (i < l - 1 && col >= 76) {
+            line[col++] = '\n';
+            line[col++] = '\0';
+            stream << (const char *)line;
+            col = 0;
+        }
+    }
+    if (col > 0) {
+        while((col&3) != 0)
+            line[col++] = '%'; // use a comment as padding
+        line[col++] = '\n';
+        line[col++] = '\0';
+        stream << (const char *)line;
+    }
+}
+
+static QByteArray runlengthEncode(const QByteArray &input)
+{
+    if (!input.length())
+        return input;
+
+    const char *data = input.constData();
+
+    QByteArray out;
+    int start = 0;
+    char last = *data;
+
+    enum State {
+        Undef,
+        Equal,
+        Diff
+    };
+    State state = Undef;
+
+    int i = 1;
+    int written = 0;
+    while (1) {
+        bool flush = (i == input.size());
+        if (!flush) {
+            switch(state) {
+            case Undef:
+                state = (last == data[i]) ? Equal : Diff;
+                break;
+            case Equal:
+                if (data[i] != last)
+                    flush = true;
+                break;
+            case Diff:
+                if (data[i] == last) {
+                    --i;
+                    flush = true;
+                }
+            }
+        }
+        if (flush || i - start == 128) {
+            int size = i - start;
+            if (state == Equal) {
+                out.append((char)(uchar)(257-size));
+                out.append(last);
+                written += size;
+            } else {
+                out.append((char)(uchar)size-1);
+                while (start < i)
+                    out.append(data[start++]);
+                written += size;
+            }
+            state = Undef;
+            start = i;
+            if (i == input.size())
+                break;
+        }
+        last = data[i];
+        ++i;
+    };
+    out.append((char)(uchar)128);
+    return out;
+}
+
+enum format {
+    Raw,
+    Runlength,
+    DCT
+};
+static const char *const filters[3] = {
+    " ",
+    "/RunLengthDecode filter ",
+    "/DCTDecode filter "
+};
+
+static QByteArray compressHelper(const QImage &image, bool gray, int *format)
+{
+    // we can't use premultiplied here
+    QByteArray pixelData;
+    int depth = image.depth();
+
+    Q_ASSERT(image.format() != QImage::Format_ARGB32_Premultiplied);
+
+    if (depth != 1 && !gray && QImageWriter::supportedImageFormats().contains("jpeg")) {
+        QBuffer buffer(&pixelData);
+        QImageWriter writer(&buffer, "jpeg");
+        writer.setQuality(94);
+        writer.write(image);
+        *format = DCT;
+    } else {
+        int width = image.width();
+        int height = image.height();
+        int size = width*height;
+
+        if (depth == 1)
+            size = (width+7)/8*height;
+        else if (!gray)
+            size = size*3;
+
+        pixelData.resize(size);
+        uchar *pixel = (uchar *)pixelData.data();
+        int i = 0;
+        if (depth == 1) {
+            QImage::Format format = image.format();
+            memset(pixel, 0xff, size);
+            for(int y=0; y < height; y++) {
+                const uchar * s = image.scanLine(y);
+                for(int x=0; x < width; x++) {
+                    // need to copy bit for bit...
+                    bool b = (format == QImage::Format_MonoLSB) ?
+                             (*(s + (x >> 3)) >> (x & 7)) & 1 :
+                             (*(s + (x >> 3)) << (x & 7)) & 0x80 ;
+                    if (b)
+                        pixel[i >> 3] ^= (0x80 >> (i & 7));
+                    i++;
+                }
+                // we need to align to 8 bit here
+                i = (i+7) & 0xffffff8;
+            }
+        } else if (depth == 8) {
+            for(int y=0; y < height; y++) {
+                const uchar * s = image.scanLine(y);
+                for(int x=0; x < width; x++) {
+                    QRgb rgb = image.color(s[x]);
+                    if (gray) {
+                        pixel[i] = (unsigned char) qGray(rgb);
+                        i++;
+                    } else {
+                        pixel[i] = (unsigned char) qRed(rgb);
+                        pixel[i+1] = (unsigned char) qGreen(rgb);
+                        pixel[i+2] = (unsigned char) qBlue(rgb);
+                        i += 3;
+                    }
+                }
+            }
+        } else {
+            for(int y=0; y < height; y++) {
+                QRgb * s = (QRgb*)(image.scanLine(y));
+                for(int x=0; x < width; x++) {
+                    QRgb rgb = (*s++);
+                    if (gray) {
+                        pixel[i] = (unsigned char) qGray(rgb);
+                        i++;
+                    } else {
+                        pixel[i] = (unsigned char) qRed(rgb);
+                        pixel[i+1] = (unsigned char) qGreen(rgb);
+                        pixel[i+2] = (unsigned char) qBlue(rgb);
+                        i += 3;
+                    }
+                }
+            }
+        }
+        *format = Raw;
+        if (depth == 1) {
+            pixelData = runlengthEncode(pixelData);
+            *format = Runlength;
+        }
+    }
+    QByteArray outarr = QPdf::ascii85Encode(pixelData);
+    return outarr;
+}
+
+void QPSPrintEnginePrivate::drawImageHelper(qreal x, qreal y, qreal w, qreal h, const QImage &img,
+                                            const QImage &mask, bool gray, qreal scaleX, qreal scaleY)
+{
+    Q_UNUSED(h);
+    Q_UNUSED(w);
+    int width = img.width();
+    int height = img.height();
+
+    QByteArray out;
+    int size = 0;
+    const char *bits;
+
+    if (!mask.isNull()) {
+        int format;
+        out = compressHelper(mask, true, &format);
+        size = (width+7)/8*height;
+        *currentPage << "/mask currentfile/ASCII85Decode filter"
+                     << filters[format]
+                     << size << " string readstring\n";
+        ps_r7(*currentPage, out, out.size());
+        *currentPage << " pop def\n";
+    }
+    if (img.depth() == 1) {
+        size = (width+7)/8*height;
+        bits = "1 ";
+    } else if (gray) {
+        size = width*height;
+        bits = "8 ";
+    } else {
+        size = width*height*3;
+        bits = "24 ";
+    }
+
+    int format;
+    out = compressHelper(img, gray, &format);
+    *currentPage << "/sl currentfile/ASCII85Decode filter"
+                 << filters[format]
+                 << size << " string readstring\n";
+    ps_r7(*currentPage, out, out.size());
+    *currentPage << " pop def\n";
+    *currentPage << width << ' ' << height << "[" << scaleX << " 0 0 " << scaleY << " 0 0]sl "
+                 << bits << (!mask.isNull() ? "mask " : "false ")
+                 << x << ' ' << y << " di\n";
+}
+
+
+void QPSPrintEnginePrivate::drawImage(qreal x, qreal y, qreal w, qreal h,
+                                      const QImage &image, const QImage &msk)
+{
+    if (!w || !h || image.isNull()) return;
+
+    QImage img(image);
+    QImage mask(msk);
+
+    if (image.format() == QImage::Format_ARGB32_Premultiplied)
+        img = image.convertToFormat(QImage::Format_ARGB32);
+
+    if (!msk.isNull() && msk.format() == QImage::Format_ARGB32_Premultiplied)
+        mask = msk.convertToFormat(QImage::Format_ARGB32);
+
+    int width  = img.width();
+    int height = img.height();
+    qreal scaleX = width/w;
+    qreal scaleY = height/h;
+
+    bool gray = (colorMode == QPrinter::GrayScale) || img.allGray();
+    int splitSize = 21830 * (gray ? 3 : 1);
+    if (width * height > splitSize) { // 65535/3, tolerance for broken printers
+        int images, subheight;
+        images = (width * height + splitSize - 1) / splitSize;
+        subheight = (height + images-1) / images;
+        while (subheight * width > splitSize) {
+            images++;
+            subheight = (height + images-1) / images;
+        }
+        int suby = 0;
+        const QImage constImg(img);
+        const QImage constMask(mask);
+        while(suby < height) {
+            qreal subImageHeight = qMin(subheight, height-suby);
+            const QImage subImage(constImg.scanLine(suby), width, subImageHeight,
+                                  constImg.bytesPerLine(), constImg.format());
+            const QImage subMask = mask.isNull() ? mask : QImage(constMask.scanLine(suby), width, subImageHeight,
+                                                                 constMask.bytesPerLine(), constMask.format());
+            drawImageHelper(x, y + suby/scaleY, w, subImageHeight/scaleY,
+                            subImage, subMask, gray, scaleX, scaleY);
+            suby += subheight;
+        }
+    } else {
+        drawImageHelper(x, y, width, height, img, mask, gray, scaleX, scaleY);
+    }
+}
+
+void QPSPrintEnginePrivate::emitHeader(bool finished)
+{
+    QPSPrintEngine *q = static_cast<QPSPrintEngine *>(q_ptr);
+    QPrinter *printer = static_cast<QPrinter*>(pdev);
+
+    if (creator.isEmpty())
+        creator = QLatin1String("Qt " QT_VERSION_STR);
+
+    QByteArray header;
+    QPdf::ByteStream s(&header);
+    s << "%!PS-Adobe-1.0";
+
+    qreal scale = 72. / ((qreal) q->metric(QPaintDevice::PdmDpiY));
+    QRect pageRect = this->pageRect();
+    QRect paperRect = this->paperRect();
+    int mtop = pageRect.top() - paperRect.top();
+    int mleft = pageRect.left() - paperRect.left();
+    int mbottom = paperRect.bottom() - pageRect.bottom();
+    int mright = paperRect.right() - pageRect.right();
+    int width = pageRect.width();
+    int height = pageRect.height();
+    if (finished && pageCount == 1 && copies == 1 &&
+        ((fullPage && qt_gen_epsf) || (outputFileName.endsWith(QLatin1String(".eps"))))
+       ) {
+        if (!boundingBox.isValid())
+            boundingBox.setRect(0, 0, width, height);
+        if (orientation == QPrinter::Landscape) {
+            if (!fullPage)
+                boundingBox.translate(-mleft, -mtop);
+            s << " EPSF-3.0\n%%BoundingBox: "
+              << (int)(printer->height() - boundingBox.bottom())*scale // llx
+              << (int)(printer->width() - boundingBox.right())*scale - 1 // lly
+              << (int)(printer->height() - boundingBox.top())*scale + 1 // urx
+              << (int)(printer->width() - boundingBox.left())*scale; // ury
+        } else {
+            if (!fullPage)
+                boundingBox.translate(mleft, -mtop);
+            s << " EPSF-3.0\n%%BoundingBox: "
+              << (int)(boundingBox.left())*scale
+              << (int)(printer->height() - boundingBox.bottom())*scale - 1
+              << (int)(boundingBox.right())*scale + 1
+              << (int)(printer->height() - boundingBox.top())*scale;
+        }
+    } else {
+        int w = width + (fullPage ? 0 : mleft + mright);
+        int h = height + (fullPage ? 0 : mtop + mbottom);
+        w = (int)(w*scale);
+        h = (int)(h*scale);
+        // set a bounding box according to the DSC
+        if (orientation == QPrinter::Landscape)
+            s << "\n%%BoundingBox: 0 0 " << h << w;
+        else
+            s << "\n%%BoundingBox: 0 0 " << w << h;
+    }
+    s << "\n" << wrapDSC("%%Creator: " + creator.toUtf8());
+    if (!title.isEmpty())
+        s << wrapDSC("%%Title: " + title.toUtf8());
+#ifndef QT_NO_DATESTRING
+    s << "%%CreationDate: " << QDateTime::currentDateTime().toString().toUtf8();
+#endif
+    s << "\n%%Orientation: ";
+    if (orientation == QPrinter::Landscape)
+        s << "Landscape";
+    else
+        s << "Portrait";
+
+    s << "\n%%Pages: (atend)"
+        "\n%%DocumentFonts: (atend)"
+        "\n%%EndComments\n"
+
+        "%%BeginProlog\n"
+        "% Prolog copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).\n"
+        "% You may copy this prolog in any way that is directly related to this document.\n"
+        "% For other use of this prolog, see your licensing agreement for Qt.\n"
+      << ps_header << "\n";
+
+
+    s << "/pageinit {\n";
+    if (!fullPage) {
+        if (orientation == QPrinter::Portrait)
+            s << mleft*scale << mbottom*scale << "translate\n";
+        else
+            s << mtop*scale << mleft*scale << "translate\n";
+    }
+    if (orientation == QPrinter::Portrait) {
+        s << "% " << printer->widthMM() << "*" << printer->heightMM()
+          << "mm (portrait)\n0 " << height*scale
+          << "translate " << scale << "-" << scale << "scale } def\n";
+    } else {
+        s << "% " << printer->heightMM() << "*" << printer->widthMM()
+          << " mm (landscape)\n 90 rotate " << scale << "-" << scale << "scale } def\n";
+    }
+    s << "%%EndProlog\n";
+
+    outDevice->write(header);
+    headerDone = true;
+}
+
+
+void QPSPrintEnginePrivate::emitPages()
+{
+    if (!hugeDocument) {
+        for (QHash<QFontEngine::FaceId, QFontSubset *>::const_iterator it = fonts.constBegin();
+             it != fonts.constEnd(); ++it)
+            outDevice->write((*it)->toType1());
+    }
+
+    QIODevice *content = buffer.stream();
+    // Write the page contents in chunks.
+    while (!content->atEnd()) {
+        QByteArray buf = content->read(currentPage->chunkSize());
+        if (!buf.isEmpty())
+            outDevice->write(buf);
+    }
+    content = currentPage->stream();
+    // Write the page contents in chunks.
+    while (!content->atEnd()) {
+        QByteArray buf = content->read(currentPage->chunkSize());
+        if (!buf.isEmpty())
+            outDevice->write(buf);
+    }
+    outDevice->write(trailer);
+
+    buffer.clear();
+    currentPage->clear();
+    trailer = QByteArray();
+    hugeDocument = true;
+}
+
+
+#ifdef Q_WS_QWS
+static const int max_in_memory_size = 2000000;
+#else
+static const int max_in_memory_size = 32000000;
+#endif
+
+void QPSPrintEnginePrivate::flushPage(bool last)
+{
+    if (!last && currentPage->stream()->size() == 0)
+        return;
+
+    QPdf::ByteStream e(&trailer);
+    buffer << "%%Page: "
+           << pageCount << pageCount << "\n"
+           << "%%BeginPageSetup\n"
+           << "QI\n";
+    if (hugeDocument) {
+        for (QHash<QFontEngine::FaceId, QFontSubset *>::const_iterator it = fonts.constBegin();
+             it != fonts.constEnd(); ++it) {
+            if (currentPage->fonts.contains((*it)->object_id)) {
+                if ((*it)->downloaded_glyphs == 0) {
+                    buffer << (*it)->toType1();
+                    (*it)->downloaded_glyphs = 0;
+                } else {
+                    buffer << (*it)->type1AddedGlyphs();
+                }
+            }
+        }
+    }
+    for (int i = 0; i < currentPage->fonts.size(); ++i)
+        buffer << "(F" << QByteArray::number(currentPage->fonts.at(i)) << ") T1Setup\n";
+
+    buffer << "%%EndPageSetup\nq\n";
+    e << "\nQ QP\n";
+    if (last || hugeDocument
+        || buffer.stream()->size() + currentPage->stream()->size() > max_in_memory_size) {
+//        qDebug("emiting header at page %d", pageCount);
+        if (!headerDone)
+            emitHeader(last);
+        emitPages();
+    } else {
+        buffer << *currentPage << e;
+        currentPage->clear();
+        trailer.clear();
+    }
+    pageCount++;
+}
+
+// ================ PSPrinter class ========================
+
+QPSPrintEngine::QPSPrintEngine(QPrinter::PrinterMode m)
+    : QPdfBaseEngine(*(new QPSPrintEnginePrivate(m)),
+                     PrimitiveTransform
+                     | PatternTransform
+                     | PixmapTransform
+                     | PainterPaths
+                     | PatternBrush
+        )
+{
+}
+
+static void ignoreSigPipe(bool b)
+{
+#ifndef QT_NO_LPR
+    static struct sigaction *users_sigpipe_handler = 0;
+    static int lockCount = 0;
+
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(QMutexPool::globalInstanceGet(&users_sigpipe_handler));
+#endif
+
+    if (b) {
+        if (lockCount++ > 0)
+            return;
+
+        if (users_sigpipe_handler != 0)
+            return; // already ignoring sigpipe
+
+        users_sigpipe_handler = new struct sigaction;
+        struct sigaction tmp_sigpipe_handler;
+        tmp_sigpipe_handler.sa_handler = SIG_IGN;
+        sigemptyset(&tmp_sigpipe_handler.sa_mask);
+        tmp_sigpipe_handler.sa_flags = 0;
+
+        if (sigaction(SIGPIPE, &tmp_sigpipe_handler, users_sigpipe_handler) == -1) {
+            delete users_sigpipe_handler;
+            users_sigpipe_handler = 0;
+        }
+    }
+    else {
+        if (--lockCount > 0)
+            return;
+
+        if (users_sigpipe_handler == 0)
+            return; // not ignoring sigpipe
+
+        if (sigaction(SIGPIPE, users_sigpipe_handler, 0) == -1)
+            qWarning("QPSPrintEngine: Could not restore SIGPIPE handler");
+
+        delete users_sigpipe_handler;
+        users_sigpipe_handler = 0;
+    }
+#else
+    Q_UNUSED(b);
+#endif
+}
+QPSPrintEngine::~QPSPrintEngine()
+{
+    Q_D(QPSPrintEngine);
+    if (d->fd >= 0)
+#if defined(Q_OS_WIN) && defined(_MSC_VER) && _MSC_VER >= 1400
+        ::_close(d->fd);
+#else
+        ::close(d->fd);
+#endif
+}
+
+bool QPSPrintEngine::begin(QPaintDevice *pdev)
+{
+    Q_D(QPSPrintEngine);
+
+    if (d->fd >= 0)
+        return true;
+
+    if (d->useAlphaEngine) {
+        QAlphaPaintEngine::begin(pdev);
+        if (!continueCall())
+            return true;
+    }
+
+    if(!QPdfBaseEngine::begin(pdev)) {
+        d->printerState = QPrinter::Error;
+        return false;
+    }
+
+    d->pageCount = 1;                // initialize state
+
+    d->pen = QPen(Qt::black);
+    d->brush = Qt::NoBrush;
+    d->hasPen = true;
+    d->hasBrush = false;
+    d->clipEnabled = false;
+    d->allClipped = false;
+    d->boundingBox = QRect();
+    d->fontsUsed = "";
+    d->hugeDocument = false;
+
+    setActive(true);
+    d->printerState = QPrinter::Active;
+
+    newPage();
+
+    return true;
+}
+
+bool QPSPrintEngine::end()
+{
+    Q_D(QPSPrintEngine);
+
+    if (d->useAlphaEngine) {
+        QAlphaPaintEngine::end();
+        if (!continueCall())
+            return true;
+    }
+
+    // we're writing to lp/lpr through a pipe, we don't want to crash with SIGPIPE
+    // if lp/lpr dies
+    ignoreSigPipe(true);
+    d->flushPage(true);
+    QByteArray trailer;
+    QPdf::ByteStream s(&trailer);
+    s << "%%Trailer\n";
+    s << "%%Pages: " << d->pageCount - 1 << "\n" <<
+        wrapDSC("%%DocumentFonts: " + d->fontsUsed);
+    s << "%%EOF\n";
+    d->outDevice->write(trailer);
+
+    QPdfBaseEngine::end();
+    ignoreSigPipe(false);
+
+    d->firstPage = true;
+    d->headerDone = false;
+
+    setActive(false);
+    d->printerState = QPrinter::Idle;
+    d->pdev = 0;
+
+    return true;
+}
+
+void QPSPrintEngine::setBrush()
+{
+    Q_D(QPSPrintEngine);
+#if 0
+    bool specifyColor;
+    int gStateObject = 0;
+    int patternObject = d->addBrushPattern(brush, d->stroker.matrix, brushOrigin, &specifyColor, &gStateObject);
+
+    *d->currentPage << (patternObject ? "/PCSp cs " : "/CSp cs ");
+    if (specifyColor) {
+        QColor rgba = brush.color();
+        *d->currentPage << rgba.redF()
+                        << rgba.greenF()
+                        << rgba.blueF();
+    }
+    if (patternObject)
+        *d->currentPage << "/Pat" << patternObject;
+    *d->currentPage << "scn\n";
+#endif
+    QColor rgba = d->brush.color();
+    if (d->colorMode == QPrinter::GrayScale) {
+        qreal gray = qGray(rgba.rgba())/255.;
+        *d->currentPage << gray << gray << gray;
+    } else {
+        *d->currentPage << rgba.redF()
+                        << rgba.greenF()
+                        << rgba.blueF();
+    }
+    *d->currentPage << "scn\n"
+                    << "/BSt " << d->brush.style() << "def\n";
+}
+
+void QPSPrintEngine::drawImageInternal(const QRectF &r, QImage image, bool bitmap)
+{
+    Q_D(QPSPrintEngine);
+    if (d->clipEnabled && d->allClipped)
+        return;
+    if (bitmap && image.depth() != 1)
+        bitmap = false;
+    QImage mask;
+    // the below is not necessary since it's handled by the alpha
+    // engine
+    if (!d->useAlphaEngine && !bitmap) {
+        if (image.format() == QImage::Format_Mono || image.format() == QImage::Format_MonoLSB)
+            image = image.convertToFormat(QImage::Format_Indexed8);
+        if (image.hasAlphaChannel()) {
+            // get better alpha dithering
+            int xscale = image.width();
+            xscale *= xscale <= 800 ? 4 : (xscale <= 1600 ? 2 : 1);
+            int yscale = image.height();
+            yscale *= yscale <= 800 ? 4 : (yscale <= 1600 ? 2 : 1);
+            image = image.scaled(xscale, yscale);
+            mask = image.createAlphaMask(Qt::OrderedAlphaDither);
+        }
+    }
+    *d->currentPage << "q\n";
+    if(!d->simplePen)
+        *d->currentPage << QPdf::generateMatrix(d->stroker.matrix);
+    QBrush b = d->brush;
+    if (image.depth() == 1) {
+        // set current pen as brush
+        d->brush = d->pen.brush();
+        setBrush();
+    }
+    d->drawImage(r.x(), r.y(), r.width(), r.height(), image, mask);
+    *d->currentPage << "Q\n";
+    d->brush = b;
+}
+
+
+void QPSPrintEngine::drawImage(const QRectF &r, const QImage &img, const QRectF &sr,
+                               Qt::ImageConversionFlags)
+{
+    Q_D(QPSPrintEngine);
+
+    if (d->useAlphaEngine) {
+        QAlphaPaintEngine::drawImage(r, img, sr);
+        if (!continueCall())
+            return;
+    }
+    QImage image = img.copy(sr.toRect());
+    drawImageInternal(r, image, false);
+}
+
+void QPSPrintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
+{
+    Q_D(QPSPrintEngine);
+
+    if (d->useAlphaEngine) {
+        QAlphaPaintEngine::drawPixmap(r, pm, sr);
+        if (!continueCall())
+            return;
+    }
+
+    QImage img = pm.copy(sr.toRect()).toImage();
+    drawImageInternal(r, img, true);
+}
+
+void QPSPrintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &p)
+{
+    Q_D(QPSPrintEngine);
+
+    if (d->useAlphaEngine) {
+        QAlphaPaintEngine::drawTiledPixmap(r, pixmap, p);
+        if (!continueCall())
+            return;
+    }
+
+    if (d->clipEnabled && d->allClipped)
+        return;
+    // ### Optimise implementation!
+    qreal yPos = r.y();
+    qreal yOff = p.y();
+    while(yPos < r.y() + r.height()) {
+        qreal drawH = pixmap.height() - yOff;    // Cropping first row
+        if (yPos + drawH > r.y() + r.height())        // Cropping last row
+            drawH = r.y() + r.height() - yPos;
+        qreal xPos = r.x();
+        qreal xOff = p.x();
+        while(xPos < r.x() + r.width()) {
+            qreal drawW = pixmap.width() - xOff; // Cropping first column
+            if (xPos + drawW > r.x() + r.width())    // Cropping last column
+                drawW = r.x() + r.width() - xPos;
+            // ########
+            painter()->drawPixmap(QPointF(xPos, yPos).toPoint(), pixmap,
+                                  QRectF(xOff, yOff, drawW, drawH).toRect());
+            xPos += drawW;
+            xOff = 0;
+        }
+        yPos += drawH;
+        yOff = 0;
+    }
+
+}
+
+bool QPSPrintEngine::newPage()
+{
+    Q_D(QPSPrintEngine);
+
+    if (!d->firstPage && d->useAlphaEngine)
+        flushAndInit();
+
+    // we're writing to lp/lpr through a pipe, we don't want to crash with SIGPIPE
+    // if lp/lpr dies
+    ignoreSigPipe(true);
+    if (!d->firstPage)
+        d->flushPage();
+    d->firstPage = false;
+    ignoreSigPipe(false);
+
+    delete d->currentPage;
+    d->currentPage = new QPdfPage;
+    d->stroker.stream = d->currentPage;
+
+    return QPdfBaseEngine::newPage();
+}
+
+bool QPSPrintEngine::abort()
+{
+    // ### abort!?!
+    return false;
+}
+
+QPrinter::PrinterState QPSPrintEngine::printerState() const
+{
+    Q_D(const QPSPrintEngine);
+    return d->printerState;
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PRINTER