/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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;
d->simplePen = 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"
"%%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