1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtGui module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
16 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
25 ** and appearing in the file LICENSE.GPL included in the packaging of this
26 ** file. Please review the following information to ensure the GNU General
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31 ** Alternatively, this file may be used in accordance with the terms and
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40 ****************************************************************************/
42 #include "qplatformdefs.h"
44 #include <private/qprintengine_ps_p.h>
45 #include <private/qpainter_p.h>
46 #include <private/qfontengine_p.h>
47 #include <private/qpaintengine_p.h>
48 #include <private/qpdf_p.h>
54 #include "qapplication.h"
57 #include "qdatetime.h"
59 #include "qbytearray.h"
62 #include "qsettings.h"
66 #include "qimagewriter.h"
67 #include <private/qpainterpath_p.h>
69 #include <private/qdrawhelper_p.h>
70 #include <private/qmutexpool_p.h>
80 static bool qt_gen_epsf = false;
82 void qt_generate_epsf(bool b)
87 static const char *const ps_header =
88 "/BD{bind def}bind def/d2{dup dup}BD/ED{exch def}BD/D0{0 ED}BD/F{setfont}BD\n"
89 "/RL{rlineto}BD/CM{currentmatrix}BD/SM{setmatrix}BD/TR{translate}BD/SD\n"
90 "{setdash}BD/SC{aload pop setrgbcolor}BD/CR{currentfile read pop}BD/i{index}\n"
91 "BD/scs{setcolorspace}BD/DB{dict dup begin}BD/DE{end def}BD/ie{ifelse}BD/gs\n"
92 "{gsave}BD/gr{grestore}BD/w{setlinewidth}BD/d{setdash}BD/J{setlinecap}BD/j\n"
93 "{setlinejoin}BD/scn{3 array astore/BCol exch def}BD/SCN{3 array astore/PCol\n"
94 "exch def}BD/cm{6 array astore concat}BD/m{moveto}BD/l{lineto}BD/c{curveto}BD\n"
95 "/h{closepath}BD/W{clip}BD/W*{eoclip}BD/n{newpath}BD/q{gsave 10 dict begin}BD\n"
96 "/Q{end grestore}BD/re{4 2 roll m dup 0 exch RL exch 0 RL 0 exch neg RL h}BD\n"
97 "/S{gs PCol SC stroke gr n}BD/BT{gsave 10 dict begin/_m matrix CM def BCol\n"
98 "SC}BD/ET{end grestore}BD/Tf{/_fs ED findfont[_fs 0 0 _fs 0 0]makefont F}BD\n"
99 "/Tm{6 array astore concat}BD/Td{translate}BD/Tj{0 0 m show}BD/BDC{pop pop}BD\n"
100 "/EMC{}BD/BSt 0 def/WFi false def/BCol[1 1 1]def/PCol[0 0 0]def/BDArr[0.94\n"
101 "0.88 0.63 0.50 0.37 0.12 0.06]def/level3{/languagelevel where{pop\n"
102 "languagelevel 3 ge}{false}ie}BD/QCIgray D0/QCIcolor D0/QCIindex D0/QCI{\n"
103 "/colorimage where{pop false 3 colorimage}{exec/QCIcolor ED/QCIgray QCIcolor\n"
104 "length 3 idiv string def 0 1 QCIcolor length 3 idiv 1 sub{/QCIindex ED/_x\n"
105 "QCIindex 3 mul def QCIgray QCIindex QCIcolor _x get 0.30 mul QCIcolor _x 1\n"
106 "add get 0.59 mul QCIcolor _x 2 add get 0.11 mul add add cvi put}for QCIgray\n"
107 "image}ie}BD/di{gs TR 1 i 1 eq{pop pop false 3 1 roll BCol SC imagemask}{dup\n"
108 "false ne{level3}{false}ie{/_ma ED 8 eq{/_dc[0 1]def/DeviceGray}{/_dc[0 1 0 1\n"
109 "0 1]def/DeviceRGB}ie scs/_im ED/_mt ED/_h ED/_w ED <</ImageType 3/DataDict\n"
110 "<</ImageType 1/Width _w/Height _h/ImageMatrix _mt/DataSource _im\n"
111 "/BitsPerComponent 8/Decode _dc >>/MaskDict <</ImageType 1/Width _w/Height _h\n"
112 "/ImageMatrix _mt/DataSource _ma/BitsPerComponent 1/Decode[0 1]>>\n"
113 "/InterleaveType 3 >> image}{pop 8 4 1 roll 8 eq{image}{QCI}ie}ie}ie gr}BD/BF\n"
114 "{gs BSt 1 eq{BCol SC WFi{fill}{eofill}ie}if BSt 2 ge BSt 8 le and{BDArr BSt\n"
115 "2 sub get/_sc ED BCol{1. exch sub _sc mul 1. exch sub}forall 3 array astore\n"
116 "SC WFi{fill}{eofill}ie}if BSt 9 ge BSt 14 le and{WFi{W}{W*}ie pathbbox 3 i 3\n"
117 "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"
118 "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"
119 "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"
120 "sub _h l}for}{0 6 _w _h add{dup 0 exch m _w sub _w exch l}for}ie}if BSt 13\n"
121 "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"
122 "add{dup _w exch m _w sub 0 exch l}for}ie}if stroke}if BSt 15 eq{}if BSt 24\n"
123 "eq{}if gr}BD/f{/WFi true def BF n}BD/f*{/WFi false def BF n}BD/B{/WFi true\n"
124 "def BF S n}BD/B*{/WFi false def BF S n}BD/QI{/C save def pageinit q n}BD/QP{\n"
125 "Q C restore showpage}BD/SPD{/setpagedevice where{<< 3 1 roll >>\n"
126 "setpagedevice}{pop pop}ie}BD/T1AddMapping{10 dict begin/glyphs ED/fnt ED\n"
127 "/current fnt/NumGlyphs get def/CMap fnt/CMap get def 0 1 glyphs length 1 sub\n"
128 "{glyphs exch get/gn ED current dup 256 mod/min ED 256 idiv/maj ED CMap dup\n"
129 "maj get dup null eq{pop 256 array 0 1 255{1 i exch/.notdef put}for}if dup\n"
130 "min gn put maj exch put/current current 1 add def}for fnt/CMap CMap put fnt\n"
131 "/NumGlyphs current put end}def/T1AddGlyphs{10 dict begin/glyphs ED/fnt ED\n"
132 "/current fnt/NumGlyphs get def/CMap fnt/CMap get def/CharStrings fnt\n"
133 "/CharStrings get def 0 1 glyphs length 2 idiv 1 sub{2 mul dup glyphs exch\n"
134 "get/gn ED 1 add glyphs exch get/cs ED current dup 256 mod/min ED 256 idiv\n"
135 "/maj ED CMap dup maj get dup null eq{pop 256 array 0 1 255{1 i exch/.notdef\n"
136 "put}for}if dup min gn put maj exch put CharStrings gn cs put/current current\n"
137 "1 add def}for fnt/CharStrings CharStrings put fnt/CMap CMap put fnt\n"
138 "/NumGlyphs current put end}def/StringAdd{1 i length 1 i length add string 3\n"
139 "1 roll 2 i 0 3 i putinterval 2 i 2 i length 2 i putinterval pop pop}def\n"
140 "/T1Setup{10 dict begin dup/FontName ED (-Base) StringAdd cvx cvn/Font ED\n"
141 "/MaxPage Font/NumGlyphs get 1 sub 256 idiv def/FDepVector MaxPage 1 add\n"
142 "array def/Encoding MaxPage 1 add array def 0 1 MaxPage{dup Encoding exch dup\n"
143 "put dup/Page ED FontName (-) StringAdd exch 20 string cvs StringAdd cvn Font\n"
144 "0 dict copy d2/CMap get Page get/Encoding exch put definefont FDepVector\n"
145 "exch Page exch put}for FontName cvn <</FontType 0/FMapType 2/FontMatrix[1 0\n"
146 "0 1 0 0]/Encoding Encoding/FDepVector FDepVector >> definefont pop end}def\n";
150 // ------------------------------End of static data ----------------------------------
152 // make sure DSC comments are not longer than 255 chars per line.
153 static QByteArray wrapDSC(const QByteArray &str)
155 QByteArray dsc = str.simplified();
156 const int wrapAt = 254;
158 if (dsc.length() < wrapAt)
161 wrapped = dsc.left(wrapAt);
162 QByteArray tmp = dsc.mid(wrapAt);
163 while (tmp.length() > wrapAt-3) {
164 wrapped += "\n%%+" + tmp.left(wrapAt-3);
165 tmp = tmp.mid(wrapAt-3);
167 wrapped += "\n%%+" + tmp;
169 return wrapped + '\n';
172 // ----------------------------- Internal class declarations -----------------------------
174 QPSPrintEnginePrivate::QPSPrintEnginePrivate(QPrinter::PrinterMode m)
175 : QPdfBaseEnginePrivate(m),
176 printerState(QPrinter::Idle), hugeDocument(false), headerDone(false)
178 useAlphaEngine = true;
183 #ifndef QT_NO_SETTINGS
184 QSettings settings(QSettings::UserScope, QLatin1String("Trolltech"));
185 settings.beginGroup(QLatin1String("Qt"));
186 embedFonts = settings.value(QLatin1String("embedFonts"), true).toBool();
192 QPSPrintEnginePrivate::~QPSPrintEnginePrivate()
196 QT_BEGIN_INCLUDE_NAMESPACE
198 QT_END_INCLUDE_NAMESPACE
200 static void ps_r7(QPdf::ByteStream& stream, const char * s, int l)
207 line[col++] = s[i++];
208 if (i < l - 1 && col >= 76) {
211 stream << (const char *)line;
217 line[col++] = '%'; // use a comment as padding
220 stream << (const char *)line;
224 static QByteArray runlengthEncode(const QByteArray &input)
229 const char *data = input.constData();
245 bool flush = (i == input.size());
249 state = (last == data[i]) ? Equal : Diff;
256 if (data[i] == last) {
262 if (flush || i - start == 128) {
263 int size = i - start;
264 if (state == Equal) {
265 out.append((char)(uchar)(257-size));
269 out.append((char)(uchar)size-1);
271 out.append(data[start++]);
276 if (i == input.size())
282 out.append((char)(uchar)128);
291 static const char *const filters[3] = {
293 "/RunLengthDecode filter ",
297 static QByteArray compressHelper(const QImage &image, bool gray, int *format)
299 // we can't use premultiplied here
300 QByteArray pixelData;
301 int depth = image.depth();
303 Q_ASSERT(image.format() != QImage::Format_ARGB32_Premultiplied);
305 if (depth != 1 && !gray && QImageWriter::supportedImageFormats().contains("jpeg")) {
306 QBuffer buffer(&pixelData);
307 QImageWriter writer(&buffer, "jpeg");
308 writer.setQuality(94);
312 int width = image.width();
313 int height = image.height();
314 int size = width*height;
317 size = (width+7)/8*height;
321 pixelData.resize(size);
322 uchar *pixel = (uchar *)pixelData.data();
325 QImage::Format format = image.format();
326 memset(pixel, 0xff, size);
327 for(int y=0; y < height; y++) {
328 const uchar * s = image.scanLine(y);
329 for(int x=0; x < width; x++) {
330 // need to copy bit for bit...
331 bool b = (format == QImage::Format_MonoLSB) ?
332 (*(s + (x >> 3)) >> (x & 7)) & 1 :
333 (*(s + (x >> 3)) << (x & 7)) & 0x80 ;
335 pixel[i >> 3] ^= (0x80 >> (i & 7));
338 // we need to align to 8 bit here
339 i = (i+7) & 0xffffff8;
341 } else if (depth == 8) {
342 for(int y=0; y < height; y++) {
343 const uchar * s = image.scanLine(y);
344 for(int x=0; x < width; x++) {
345 QRgb rgb = image.color(s[x]);
347 pixel[i] = (unsigned char) qGray(rgb);
350 pixel[i] = (unsigned char) qRed(rgb);
351 pixel[i+1] = (unsigned char) qGreen(rgb);
352 pixel[i+2] = (unsigned char) qBlue(rgb);
358 for(int y=0; y < height; y++) {
359 QRgb * s = (QRgb*)(image.scanLine(y));
360 for(int x=0; x < width; x++) {
363 pixel[i] = (unsigned char) qGray(rgb);
366 pixel[i] = (unsigned char) qRed(rgb);
367 pixel[i+1] = (unsigned char) qGreen(rgb);
368 pixel[i+2] = (unsigned char) qBlue(rgb);
376 pixelData = runlengthEncode(pixelData);
380 QByteArray outarr = QPdf::ascii85Encode(pixelData);
384 void QPSPrintEnginePrivate::drawImageHelper(qreal x, qreal y, qreal w, qreal h, const QImage &img,
385 const QImage &mask, bool gray, qreal scaleX, qreal scaleY)
389 int width = img.width();
390 int height = img.height();
396 if (!mask.isNull()) {
398 out = compressHelper(mask, true, &format);
399 size = (width+7)/8*height;
400 *currentPage << "/mask currentfile/ASCII85Decode filter"
402 << size << " string readstring\n";
403 ps_r7(*currentPage, out, out.size());
404 *currentPage << " pop def\n";
406 if (img.depth() == 1) {
407 size = (width+7)/8*height;
413 size = width*height*3;
418 out = compressHelper(img, gray, &format);
419 *currentPage << "/sl currentfile/ASCII85Decode filter"
421 << size << " string readstring\n";
422 ps_r7(*currentPage, out, out.size());
423 *currentPage << " pop def\n";
424 *currentPage << width << ' ' << height << '[' << scaleX << " 0 0 " << scaleY << " 0 0]sl "
425 << bits << (!mask.isNull() ? "mask " : "false ")
426 << x << ' ' << y << " di\n";
430 void QPSPrintEnginePrivate::drawImage(qreal x, qreal y, qreal w, qreal h,
431 const QImage &image, const QImage &msk)
433 if (!w || !h || image.isNull()) return;
438 if (image.format() == QImage::Format_ARGB32_Premultiplied)
439 img = image.convertToFormat(QImage::Format_ARGB32);
441 if (!msk.isNull() && msk.format() == QImage::Format_ARGB32_Premultiplied)
442 mask = msk.convertToFormat(QImage::Format_ARGB32);
444 int width = img.width();
445 int height = img.height();
446 qreal scaleX = width/w;
447 qreal scaleY = height/h;
449 bool gray = (colorMode == QPrinter::GrayScale) || img.allGray();
450 int splitSize = 21830 * (gray ? 3 : 1);
451 if (width * height > splitSize) { // 65535/3, tolerance for broken printers
452 int images, subheight;
453 images = (width * height + splitSize - 1) / splitSize;
454 subheight = (height + images-1) / images;
455 while (subheight * width > splitSize) {
457 subheight = (height + images-1) / images;
460 const QImage constImg(img);
461 const QImage constMask(mask);
462 while(suby < height) {
463 qreal subImageHeight = qMin(subheight, height-suby);
464 const QImage subImage(constImg.scanLine(suby), width, subImageHeight,
465 constImg.bytesPerLine(), constImg.format());
466 const QImage subMask = mask.isNull() ? mask : QImage(constMask.scanLine(suby), width, subImageHeight,
467 constMask.bytesPerLine(), constMask.format());
468 drawImageHelper(x, y + suby/scaleY, w, subImageHeight/scaleY,
469 subImage, subMask, gray, scaleX, scaleY);
473 drawImageHelper(x, y, width, height, img, mask, gray, scaleX, scaleY);
477 void QPSPrintEnginePrivate::emitHeader(bool finished)
479 QPSPrintEngine *q = static_cast<QPSPrintEngine *>(q_ptr);
480 QPrinter *printer = static_cast<QPrinter*>(pdev);
482 if (creator.isEmpty())
483 creator = QLatin1String("Qt " QT_VERSION_STR);
486 QPdf::ByteStream s(&header);
488 qreal scale = 72. / ((qreal) q->metric(QPaintDevice::PdmDpiY));
489 QRect pageRect = this->pageRect();
490 QRect paperRect = this->paperRect();
491 int mtop = pageRect.top() - paperRect.top();
492 int mleft = pageRect.left() - paperRect.left();
493 int mbottom = paperRect.bottom() - pageRect.bottom();
494 int mright = paperRect.right() - pageRect.right();
495 int width = pageRect.width();
496 int height = pageRect.height();
497 if (finished && pageCount == 1 && copies == 1 &&
498 ((fullPage && qt_gen_epsf) || (outputFileName.endsWith(QLatin1String(".eps")))))
500 // According to the EPSF 3.0 spec it is required that the PS
501 // version is PS-Adobe-3.0
502 s << "%!PS-Adobe-3.0";
503 if (!boundingBox.isValid())
504 boundingBox.setRect(0, 0, width, height);
505 if (orientation == QPrinter::Landscape) {
507 boundingBox.translate(-mleft, -mtop);
508 s << " EPSF-3.0\n%%BoundingBox: "
509 << int((printer->height() - boundingBox.bottom())*scale) // llx
510 << int((printer->width() - boundingBox.right())*scale - 1) // lly
511 << int((printer->height() - boundingBox.top())*scale + 1) // urx
512 << int((printer->width() - boundingBox.left())*scale); // ury
515 boundingBox.translate(mleft, -mtop);
516 s << " EPSF-3.0\n%%BoundingBox: "
517 << int((boundingBox.left())*scale)
518 << int((printer->height() - boundingBox.bottom())*scale - 1)
519 << int((boundingBox.right())*scale + 1)
520 << int((printer->height() - boundingBox.top())*scale);
523 s << "%!PS-Adobe-1.0";
524 int w = width + (fullPage ? 0 : mleft + mright);
525 int h = height + (fullPage ? 0 : mtop + mbottom);
528 // set a bounding box according to the DSC
529 if (orientation == QPrinter::Landscape)
530 s << "\n%%BoundingBox: 0 0 " << h << w;
532 s << "\n%%BoundingBox: 0 0 " << w << h;
534 s << '\n' << wrapDSC("%%Creator: " + creator.toUtf8());
535 if (!title.isEmpty())
536 s << wrapDSC("%%Title: " + title.toUtf8());
537 #ifndef QT_NO_DATESTRING
538 s << "%%CreationDate: " << QDateTime::currentDateTime().toString().toUtf8();
540 s << "\n%%Orientation: ";
541 if (orientation == QPrinter::Landscape)
546 s << "\n%%Pages: (atend)"
547 "\n%%DocumentFonts: (atend)"
551 "% Prolog copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).\n"
552 "% You may copy this prolog in any way that is directly related to this document.\n"
553 "% For other use of this prolog, see your licensing agreement for Qt.\n"
554 << ps_header << '\n';
557 s << "/pageinit {\n";
559 if (orientation == QPrinter::Portrait)
560 s << mleft*scale << mbottom*scale << "translate\n";
562 s << mtop*scale << mleft*scale << "translate\n";
564 if (orientation == QPrinter::Portrait) {
565 s << "% " << printer->widthMM() << '*' << printer->heightMM()
566 << "mm (portrait)\n0 " << height*scale
567 << "translate " << scale << '-' << scale << "scale } def\n";
569 s << "% " << printer->heightMM() << '*' << printer->widthMM()
570 << " mm (landscape)\n 90 rotate " << scale << '-' << scale << "scale } def\n";
572 s << "%%EndProlog\n";
574 outDevice->write(header);
579 void QPSPrintEnginePrivate::emitPages()
582 for (QHash<QFontEngine::FaceId, QFontSubset *>::const_iterator it = fonts.constBegin();
583 it != fonts.constEnd(); ++it)
584 outDevice->write((*it)->toType1());
587 QIODevice *content = buffer.stream();
588 // Write the page contents in chunks.
589 while (!content->atEnd()) {
590 QByteArray buf = content->read(currentPage->chunkSize());
592 outDevice->write(buf);
594 content = currentPage->stream();
595 // Write the page contents in chunks.
596 while (!content->atEnd()) {
597 QByteArray buf = content->read(currentPage->chunkSize());
599 outDevice->write(buf);
601 outDevice->write(trailer);
604 currentPage->clear();
605 trailer = QByteArray();
611 static const int max_in_memory_size = 2000000;
613 static const int max_in_memory_size = 32000000;
616 void QPSPrintEnginePrivate::flushPage(bool last)
618 if (!last && currentPage->stream()->size() == 0)
621 QPdf::ByteStream e(&trailer);
623 << pageCount << pageCount << "\n"
627 for (QHash<QFontEngine::FaceId, QFontSubset *>::const_iterator it = fonts.constBegin();
628 it != fonts.constEnd(); ++it) {
629 if (currentPage->fonts.contains((*it)->object_id)) {
630 if ((*it)->downloaded_glyphs == 0) {
631 buffer << (*it)->toType1();
632 (*it)->downloaded_glyphs = 0;
634 buffer << (*it)->type1AddedGlyphs();
639 for (int i = 0; i < currentPage->fonts.size(); ++i)
640 buffer << "(F" << QByteArray::number(currentPage->fonts.at(i)) << ") T1Setup\n";
642 buffer << "%%EndPageSetup\nq\n";
644 if (last || hugeDocument
645 || buffer.stream()->size() + currentPage->stream()->size() > max_in_memory_size) {
646 // qDebug("emiting header at page %d", pageCount);
651 buffer << *currentPage << e;
652 currentPage->clear();
658 // ================ PSPrinter class ========================
660 QPSPrintEngine::QPSPrintEngine(QPrinter::PrinterMode m)
661 : QPdfBaseEngine(*(new QPSPrintEnginePrivate(m)),
671 static void ignoreSigPipe(bool b)
674 static struct sigaction *users_sigpipe_handler = 0;
675 static int lockCount = 0;
678 QMutexLocker locker(QMutexPool::globalInstanceGet(&users_sigpipe_handler));
685 if (users_sigpipe_handler != 0)
686 return; // already ignoring sigpipe
688 users_sigpipe_handler = new struct sigaction;
689 struct sigaction tmp_sigpipe_handler;
690 tmp_sigpipe_handler.sa_handler = SIG_IGN;
691 sigemptyset(&tmp_sigpipe_handler.sa_mask);
692 tmp_sigpipe_handler.sa_flags = 0;
694 if (sigaction(SIGPIPE, &tmp_sigpipe_handler, users_sigpipe_handler) == -1) {
695 delete users_sigpipe_handler;
696 users_sigpipe_handler = 0;
703 if (users_sigpipe_handler == 0)
704 return; // not ignoring sigpipe
706 if (sigaction(SIGPIPE, users_sigpipe_handler, 0) == -1)
707 qWarning("QPSPrintEngine: Could not restore SIGPIPE handler");
709 delete users_sigpipe_handler;
710 users_sigpipe_handler = 0;
716 QPSPrintEngine::~QPSPrintEngine()
720 #if defined(Q_OS_WIN) && defined(_MSC_VER) && _MSC_VER >= 1400
727 bool QPSPrintEngine::begin(QPaintDevice *pdev)
734 if (d->useAlphaEngine) {
735 QAlphaPaintEngine::begin(pdev);
740 if(!QPdfBaseEngine::begin(pdev)) {
741 d->printerState = QPrinter::Error;
745 d->pageCount = 1; // initialize state
747 d->pen = QPen(Qt::black);
748 d->brush = Qt::NoBrush;
751 d->clipEnabled = false;
752 d->allClipped = false;
753 d->boundingBox = QRect();
755 d->hugeDocument = false;
756 d->simplePen = false;
759 d->printerState = QPrinter::Active;
766 bool QPSPrintEngine::end()
770 if (d->useAlphaEngine) {
771 QAlphaPaintEngine::end();
776 // we're writing to lp/lpr through a pipe, we don't want to crash with SIGPIPE
781 QPdf::ByteStream s(&trailer);
783 "%%Pages: " << d->pageCount - 1 << '\n' <<
784 wrapDSC("%%DocumentFonts: " + d->fontsUsed);
786 d->outDevice->write(trailer);
788 QPdfBaseEngine::end();
789 ignoreSigPipe(false);
792 d->headerDone = false;
795 d->printerState = QPrinter::Idle;
801 void QPSPrintEngine::setBrush()
806 int gStateObject = 0;
807 int patternObject = d->addBrushPattern(brush, d->stroker.matrix, brushOrigin, &specifyColor, &gStateObject);
809 *d->currentPage << (patternObject ? "/PCSp cs " : "/CSp cs ");
811 QColor rgba = brush.color();
812 *d->currentPage << rgba.redF()
817 *d->currentPage << "/Pat" << patternObject;
818 *d->currentPage << "scn\n";
820 QColor rgba = d->brush.color();
821 if (d->colorMode == QPrinter::GrayScale) {
822 qreal gray = qGray(rgba.rgba())/255.;
823 *d->currentPage << gray << gray << gray;
825 *d->currentPage << rgba.redF()
829 *d->currentPage << "scn\n"
830 << "/BSt " << d->brush.style() << "def\n";
833 void QPSPrintEngine::drawImageInternal(const QRectF &r, QImage image, bool bitmap)
836 if (d->clipEnabled && d->allClipped)
838 if (bitmap && image.depth() != 1)
841 // the below is not necessary since it's handled by the alpha
843 if (!d->useAlphaEngine && !bitmap) {
844 if (image.format() == QImage::Format_Mono || image.format() == QImage::Format_MonoLSB)
845 image = image.convertToFormat(QImage::Format_Indexed8);
846 if (image.hasAlphaChannel()) {
847 // get better alpha dithering
848 int xscale = image.width();
849 xscale *= xscale <= 800 ? 4 : (xscale <= 1600 ? 2 : 1);
850 int yscale = image.height();
851 yscale *= yscale <= 800 ? 4 : (yscale <= 1600 ? 2 : 1);
852 image = image.scaled(xscale, yscale);
853 mask = image.createAlphaMask(Qt::OrderedAlphaDither);
856 *d->currentPage << "q\n";
858 *d->currentPage << QPdf::generateMatrix(d->stroker.matrix);
860 if (image.depth() == 1) {
861 // set current pen as brush
862 d->brush = d->pen.brush();
865 d->drawImage(r.x(), r.y(), r.width(), r.height(), image, mask);
866 *d->currentPage << "Q\n";
871 void QPSPrintEngine::drawImage(const QRectF &r, const QImage &img, const QRectF &sr,
872 Qt::ImageConversionFlags)
876 if (d->useAlphaEngine) {
877 QAlphaPaintEngine::drawImage(r, img, sr);
881 QImage image = img.copy(sr.toRect());
882 drawImageInternal(r, image, false);
885 void QPSPrintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
889 if (d->useAlphaEngine) {
890 QAlphaPaintEngine::drawPixmap(r, pm, sr);
895 QImage img = pm.copy(sr.toRect()).toImage();
896 drawImageInternal(r, img, true);
899 void QPSPrintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &p)
903 if (d->useAlphaEngine) {
904 QAlphaPaintEngine::drawTiledPixmap(r, pixmap, p);
909 if (d->clipEnabled && d->allClipped)
911 // ### Optimize implementation!
914 while(yPos < r.y() + r.height()) {
915 qreal drawH = pixmap.height() - yOff; // Cropping first row
916 if (yPos + drawH > r.y() + r.height()) // Cropping last row
917 drawH = r.y() + r.height() - yPos;
920 while(xPos < r.x() + r.width()) {
921 qreal drawW = pixmap.width() - xOff; // Cropping first column
922 if (xPos + drawW > r.x() + r.width()) // Cropping last column
923 drawW = r.x() + r.width() - xPos;
925 painter()->drawPixmap(QPointF(xPos, yPos).toPoint(), pixmap,
926 QRectF(xOff, yOff, drawW, drawH).toRect());
936 bool QPSPrintEngine::newPage()
940 if (!d->firstPage && d->useAlphaEngine)
943 // we're writing to lp/lpr through a pipe, we don't want to crash with SIGPIPE
948 d->firstPage = false;
949 ignoreSigPipe(false);
951 delete d->currentPage;
952 d->currentPage = new QPdfPage;
953 d->stroker.stream = d->currentPage;
955 return QPdfBaseEngine::newPage();
958 bool QPSPrintEngine::abort()
964 QPrinter::PrinterState QPSPrintEngine::printerState() const
966 Q_D(const QPSPrintEngine);
967 return d->printerState;
972 #endif // QT_NO_PRINTER