summaryrefslogtreecommitdiffstats
path: root/src/gui/painting/qprintengine_pdf.cpp
diff options
context:
space:
mode:
authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:34:13 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:34:13 (GMT)
commit67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch)
tree1dbf50b3dff8d5ca7e9344733968c72704eb15ff /src/gui/painting/qprintengine_pdf.cpp
downloadQt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.zip
Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.gz
Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.bz2
Long live Qt!
Diffstat (limited to 'src/gui/painting/qprintengine_pdf.cpp')
-rw-r--r--src/gui/painting/qprintengine_pdf.cpp1225
1 files changed, 1225 insertions, 0 deletions
diff --git a/src/gui/painting/qprintengine_pdf.cpp b/src/gui/painting/qprintengine_pdf.cpp
new file mode 100644
index 0000000..2e063b7
--- /dev/null
+++ b/src/gui/painting/qprintengine_pdf.cpp
@@ -0,0 +1,1225 @@
+/****************************************************************************
+**
+** 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 <QtGui/qprintengine.h>
+
+#include <qiodevice.h>
+#include <qpainter.h>
+#include <qbitmap.h>
+#include <qpainterpath.h>
+#include <qpaintdevice.h>
+#include <qfile.h>
+#include <qdebug.h>
+#include <qimagewriter.h>
+#include <qbuffer.h>
+#include <qdatetime.h>
+
+#ifndef QT_NO_PRINTER
+#include <limits.h>
+#include <math.h>
+#ifndef QT_NO_COMPRESS
+#include <zlib.h>
+#endif
+
+#if defined(Q_OS_WINCE)
+#include "qwinfunctions_wince.h"
+#endif
+
+#include "qprintengine_pdf_p.h"
+#include "private/qdrawhelper_p.h"
+
+QT_BEGIN_NAMESPACE
+
+extern qint64 qt_pixmap_id(const QPixmap &pixmap);
+extern qint64 qt_image_id(const QImage &image);
+
+//#define FONT_DUMP
+
+// might be helpful for smooth transforms of images
+// Can't use it though, as gs generates completely wrong images if this is true.
+static const bool interpolateImages = false;
+
+#ifdef QT_NO_COMPRESS
+static const bool do_compress = false;
+#else
+static const bool do_compress = true;
+#endif
+
+QPdfPage::QPdfPage()
+ : QPdf::ByteStream(true) // Enable file backing
+{
+}
+
+void QPdfPage::streamImage(int w, int h, int object)
+{
+ *this << w << "0 0 " << -h << "0 " << h << "cm /Im" << object << " Do\n";
+ if (!images.contains(object))
+ images.append(object);
+}
+
+
+inline QPaintEngine::PaintEngineFeatures qt_pdf_decide_features()
+{
+ QPaintEngine::PaintEngineFeatures f = QPaintEngine::AllFeatures;
+ f &= ~(QPaintEngine::PorterDuff | QPaintEngine::PerspectiveTransform
+ | QPaintEngine::ObjectBoundingModeGradients
+#ifndef USE_NATIVE_GRADIENTS
+ | QPaintEngine::LinearGradientFill
+#endif
+ | QPaintEngine::RadialGradientFill
+ | QPaintEngine::ConicalGradientFill);
+ return f;
+}
+
+QPdfEngine::QPdfEngine(QPrinter::PrinterMode m)
+ : QPdfBaseEngine(*new QPdfEnginePrivate(m), qt_pdf_decide_features())
+{
+ state = QPrinter::Idle;
+}
+
+QPdfEngine::~QPdfEngine()
+{
+}
+
+bool QPdfEngine::begin(QPaintDevice *pdev)
+{
+ Q_D(QPdfEngine);
+
+ if(!QPdfBaseEngine::begin(pdev)) {
+ state = QPrinter::Error;
+ return false;
+ }
+ d->stream->setDevice(d->outDevice);
+
+ d->streampos = 0;
+ d->hasPen = true;
+ d->hasBrush = false;
+ d->clipEnabled = false;
+ d->allClipped = false;
+
+ d->xrefPositions.clear();
+ d->pageRoot = 0;
+ d->catalog = 0;
+ d->info = 0;
+ d->graphicsState = 0;
+ d->patternColorSpace = 0;
+
+ d->pages.clear();
+ d->imageCache.clear();
+
+ setActive(true);
+ state = QPrinter::Active;
+ d->writeHeader();
+ newPage();
+
+ return true;
+}
+
+bool QPdfEngine::end()
+{
+ Q_D(QPdfEngine);
+ d->writeTail();
+
+ d->stream->unsetDevice();
+ QPdfBaseEngine::end();
+ setActive(false);
+ state = QPrinter::Idle;
+ return true;
+}
+
+
+void QPdfEngine::drawPixmap (const QRectF &rectangle, const QPixmap &pixmap, const QRectF &sr)
+{
+ if (sr.isEmpty() || rectangle.isEmpty() || pixmap.isNull())
+ return;
+ Q_D(QPdfEngine);
+
+ QBrush b = d->brush;
+
+ QRect sourceRect = sr.toRect();
+ QPixmap pm = sourceRect != pixmap.rect() ? pixmap.copy(sourceRect) : pixmap;
+ QImage image = pm.toImage();
+ bool bitmap = true;
+ const int object = d->addImage(image, &bitmap, pm.cacheKey());
+ if (object < 0)
+ return;
+
+ *d->currentPage << "q\n/GSa gs\n";
+ *d->currentPage
+ << QPdf::generateMatrix(QTransform(rectangle.width() / sr.width(), 0, 0, rectangle.height() / sr.height(),
+ rectangle.x(), rectangle.y()) * (d->simplePen ? QTransform() : d->stroker.matrix));
+ if (bitmap) {
+ // set current pen as d->brush
+ d->brush = d->pen.brush();
+ }
+ setBrush();
+ d->currentPage->streamImage(image.width(), image.height(), object);
+ *d->currentPage << "Q\n";
+
+ d->brush = b;
+}
+
+void QPdfEngine::drawImage(const QRectF &rectangle, const QImage &image, const QRectF &sr, Qt::ImageConversionFlags)
+{
+ if (sr.isEmpty() || rectangle.isEmpty() || image.isNull())
+ return;
+ Q_D(QPdfEngine);
+
+ QRect sourceRect = sr.toRect();
+ QImage im = sourceRect != image.rect() ? image.copy(sourceRect) : image;
+ bool bitmap = true;
+ const int object = d->addImage(image, &bitmap, im.cacheKey());
+ if (object < 0)
+ return;
+
+ *d->currentPage << "q\n/GSa gs\n";
+ *d->currentPage
+ << QPdf::generateMatrix(QTransform(rectangle.width() / sr.width(), 0, 0, rectangle.height() / sr.height(),
+ rectangle.x(), rectangle.y()) * (d->simplePen ? QTransform() : d->stroker.matrix));
+ setBrush();
+ d->currentPage->streamImage(im.width(), im.height(), object);
+ *d->currentPage << "Q\n";
+}
+
+void QPdfEngine::drawTiledPixmap (const QRectF &rectangle, const QPixmap &pixmap, const QPointF &point)
+{
+ Q_D(QPdfEngine);
+
+ bool bitmap = (pixmap.depth() == 1);
+ QBrush b = d->brush;
+ QPointF bo = d->brushOrigin;
+ bool hp = d->hasPen;
+ d->hasPen = false;
+ bool hb = d->hasBrush;
+ d->hasBrush = true;
+
+ d->brush = QBrush(pixmap);
+ if (bitmap)
+ // #### fix bitmap case where we have a brush pen
+ d->brush.setColor(d->pen.color());
+
+ d->brushOrigin = -point;
+ *d->currentPage << "q\n";
+ setBrush();
+
+ drawRects(&rectangle, 1);
+ *d->currentPage << "Q\n";
+
+ d->hasPen = hp;
+ d->hasBrush = hb;
+ d->brush = b;
+ d->brushOrigin = bo;
+}
+
+
+void QPdfEngine::setBrush()
+{
+ Q_D(QPdfEngine);
+ Qt::BrushStyle style = d->brush.style();
+ if (style == Qt::NoBrush)
+ return;
+
+ bool specifyColor;
+ int gStateObject = 0;
+ int patternObject = d->addBrushPattern(d->stroker.matrix, &specifyColor, &gStateObject);
+
+ *d->currentPage << (patternObject ? "/PCSp cs " : "/CSp cs ");
+ if (specifyColor) {
+ 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();
+ }
+ }
+ if (patternObject)
+ *d->currentPage << "/Pat" << patternObject;
+ *d->currentPage << "scn\n";
+
+ if (gStateObject)
+ *d->currentPage << "/GState" << gStateObject << "gs\n";
+ else
+ *d->currentPage << "/GSa gs\n";
+}
+
+QPaintEngine::Type QPdfEngine::type() const
+{
+ return QPaintEngine::Pdf;
+}
+
+bool QPdfEngine::newPage()
+{
+ Q_D(QPdfEngine);
+ if (!isActive())
+ return false;
+ d->newPage();
+ return QPdfBaseEngine::newPage();
+}
+
+QPdfEnginePrivate::QPdfEnginePrivate(QPrinter::PrinterMode m)
+ : QPdfBaseEnginePrivate(m)
+{
+ streampos = 0;
+
+ stream = new QDataStream;
+ pageOrder = QPrinter::FirstPageFirst;
+ orientation = QPrinter::Portrait;
+ fullPage = false;
+}
+
+QPdfEnginePrivate::~QPdfEnginePrivate()
+{
+ delete stream;
+}
+
+
+#ifdef USE_NATIVE_GRADIENTS
+int QPdfEnginePrivate::gradientBrush(const QBrush &b, const QMatrix &matrix, int *gStateObject)
+{
+ const QGradient *gradient = b.gradient();
+ if (!gradient)
+ return 0;
+
+ QTransform inv = matrix.inverted();
+ QPointF page_rect[4] = { inv.map(QPointF(0, 0)),
+ inv.map(QPointF(width_, 0)),
+ inv.map(QPointF(0, height_)),
+ inv.map(QPointF(width_, height_)) };
+
+ bool opaque = b.isOpaque();
+
+ QByteArray shader;
+ QByteArray alphaShader;
+ if (gradient->type() == QGradient::LinearGradient) {
+ const QLinearGradient *lg = static_cast<const QLinearGradient *>(gradient);
+ shader = QPdf::generateLinearGradientShader(lg, page_rect);
+ if (!opaque)
+ alphaShader = QPdf::generateLinearGradientShader(lg, page_rect, true);
+ } else {
+ // #############
+ return 0;
+ }
+ int shaderObject = addXrefEntry(-1);
+ write(shader);
+
+ QByteArray str;
+ QPdf::ByteStream s(&str);
+ s << "<<\n"
+ "/Type /Pattern\n"
+ "/PatternType 2\n"
+ "/Shading " << shaderObject << "0 R\n"
+ "/Matrix ["
+ << matrix.m11()
+ << matrix.m12()
+ << matrix.m21()
+ << matrix.m22()
+ << matrix.dx()
+ << matrix.dy() << "]\n";
+ s << ">>\n"
+ "endobj\n";
+
+ int patternObj = addXrefEntry(-1);
+ write(str);
+ currentPage->patterns.append(patternObj);
+
+ if (!opaque) {
+ bool ca = true;
+ QGradientStops stops = gradient->stops();
+ int a = stops.at(0).second.alpha();
+ for (int i = 1; i < stops.size(); ++i) {
+ if (stops.at(i).second.alpha() != a) {
+ ca = false;
+ break;
+ }
+ }
+ if (ca) {
+ *gStateObject = addConstantAlphaObject(stops.at(0).second.alpha());
+ } else {
+ int alphaShaderObject = addXrefEntry(-1);
+ write(alphaShader);
+
+ QByteArray content;
+ QPdf::ByteStream c(&content);
+ c << "/Shader" << alphaShaderObject << "sh\n";
+
+ QByteArray form;
+ QPdf::ByteStream f(&form);
+ f << "<<\n"
+ "/Type /XObject\n"
+ "/Subtype /Form\n"
+ "/BBox [0 0 " << width_ << height_ << "]\n"
+ "/Group <</S /Transparency >>\n"
+ "/Resources <<\n"
+ "/Shading << /Shader" << alphaShaderObject << alphaShaderObject << "0 R >>\n"
+ ">>\n";
+
+ f << "/Length " << content.length() << "\n"
+ ">>\n"
+ "stream\n"
+ << content
+ << "endstream\n"
+ "endobj\n";
+
+ int softMaskFormObject = addXrefEntry(-1);
+ write(form);
+ *gStateObject = addXrefEntry(-1);
+ xprintf("<< /SMask << /S /Alpha /G %d 0 R >> >>\n"
+ "endobj\n", softMaskFormObject);
+ currentPage->graphicStates.append(*gStateObject);
+ }
+ }
+
+ return patternObj;
+}
+#endif
+
+int QPdfEnginePrivate::addConstantAlphaObject(int brushAlpha, int penAlpha)
+{
+ if (brushAlpha == 255 && penAlpha == 255)
+ return 0;
+ int object = alphaCache.value(QPair<uint, uint>(brushAlpha, penAlpha), 0);
+ if (!object) {
+ object = addXrefEntry(-1);
+ QByteArray alphaDef;
+ QPdf::ByteStream s(&alphaDef);
+ s << "<<\n/ca " << (brushAlpha/qreal(255.)) << "\n";
+ s << "/CA " << (penAlpha/qreal(255.)) << "\n>>";
+ xprintf("%s\nendobj\n", alphaDef.constData());
+ alphaCache.insert(QPair<uint, uint>(brushAlpha, penAlpha), object);
+ }
+ if (currentPage->graphicStates.indexOf(object) < 0)
+ currentPage->graphicStates.append(object);
+
+ return object;
+}
+
+int QPdfEnginePrivate::addBrushPattern(const QTransform &m, bool *specifyColor, int *gStateObject)
+{
+ int paintType = 2; // Uncolored tiling
+ int w = 8;
+ int h = 8;
+
+ *specifyColor = true;
+ *gStateObject = 0;
+
+ QTransform matrix = m;
+ matrix.translate(brushOrigin.x(), brushOrigin.y());
+ matrix = matrix * pageMatrix();
+ //qDebug() << brushOrigin << matrix;
+
+ Qt::BrushStyle style = brush.style();
+ if (style == Qt::LinearGradientPattern) {// && style <= Qt::ConicalGradientPattern) {
+#ifdef USE_NATIVE_GRADIENTS
+ *specifyColor = false;
+ return gradientBrush(b, matrix, gStateObject);
+#else
+ return 0;
+#endif
+ }
+
+ if ((!brush.isOpaque() && brush.style() < Qt::LinearGradientPattern) || opacity != 1.0)
+ *gStateObject = addConstantAlphaObject(qRound(brush.color().alpha() * opacity),
+ qRound(pen.color().alpha() * opacity));
+
+ int imageObject = -1;
+ QByteArray pattern = QPdf::patternForBrush(brush);
+ if (pattern.isEmpty()) {
+ if (brush.style() != Qt::TexturePattern)
+ return 0;
+ QImage image = brush.texture().toImage();
+ bool bitmap = true;
+ imageObject = addImage(image, &bitmap, qt_pixmap_id(brush.texture()));
+ if (imageObject != -1) {
+ QImage::Format f = image.format();
+ if (f != QImage::Format_MonoLSB && f != QImage::Format_Mono) {
+ paintType = 1; // Colored tiling
+ *specifyColor = false;
+ }
+ w = image.width();
+ h = image.height();
+ QTransform m(w, 0, 0, -h, 0, h);
+ QPdf::ByteStream s(&pattern);
+ s << QPdf::generateMatrix(m);
+ s << "/Im" << imageObject << " Do\n";
+ }
+ }
+
+ QByteArray str;
+ QPdf::ByteStream s(&str);
+ s << "<<\n"
+ "/Type /Pattern\n"
+ "/PatternType 1\n"
+ "/PaintType " << paintType << "\n"
+ "/TilingType 1\n"
+ "/BBox [0 0 " << w << h << "]\n"
+ "/XStep " << w << "\n"
+ "/YStep " << h << "\n"
+ "/Matrix ["
+ << matrix.m11()
+ << matrix.m12()
+ << matrix.m21()
+ << matrix.m22()
+ << matrix.dx()
+ << matrix.dy() << "]\n"
+ "/Resources \n<< "; // open resource tree
+ if (imageObject > 0) {
+ s << "/XObject << /Im" << imageObject << ' ' << imageObject << "0 R >> ";
+ }
+ s << ">>\n"
+ "/Length " << pattern.length() << "\n"
+ ">>\n"
+ "stream\n"
+ << pattern
+ << "endstream\n"
+ "endobj\n";
+
+ int patternObj = addXrefEntry(-1);
+ write(str);
+ currentPage->patterns.append(patternObj);
+ return patternObj;
+}
+
+/*!
+ * Adds an image to the pdf and return the pdf-object id. Returns -1 if adding the image failed.
+ */
+int QPdfEnginePrivate::addImage(const QImage &img, bool *bitmap, qint64 serial_no)
+{
+ if (img.isNull())
+ return -1;
+
+ int object = imageCache.value(serial_no);
+ if(object)
+ return object;
+
+ QImage image = img;
+ QImage::Format format = image.format();
+ if (image.depth() == 1 && *bitmap) {
+ if (format == QImage::Format_MonoLSB)
+ image = image.convertToFormat(QImage::Format_Mono);
+ format = QImage::Format_Mono;
+ } else {
+ *bitmap = false;
+ if (format != QImage::Format_RGB32 && format != QImage::Format_ARGB32) {
+ image = image.convertToFormat(QImage::Format_ARGB32);
+ format = QImage::Format_ARGB32;
+ }
+ }
+
+ int w = image.width();
+ int h = image.height();
+ int d = image.depth();
+
+ if (format == QImage::Format_Mono) {
+ int bytesPerLine = (w + 7) >> 3;
+ QByteArray data;
+ data.resize(bytesPerLine * h);
+ char *rawdata = data.data();
+ for (int y = 0; y < h; ++y) {
+ memcpy(rawdata, image.scanLine(y), bytesPerLine);
+ rawdata += bytesPerLine;
+ }
+ object = writeImage(data, w, h, d, 0, 0);
+ } else {
+ QByteArray softMaskData;
+ bool dct = false;
+ QByteArray imageData;
+ bool hasAlpha = false;
+ bool hasMask = false;
+
+ if (QImageWriter::supportedImageFormats().contains("jpeg") && colorMode != QPrinter::GrayScale) {
+ QBuffer buffer(&imageData);
+ QImageWriter writer(&buffer, "jpeg");
+ writer.setQuality(94);
+ writer.write(image);
+ dct = true;
+
+ if (format != QImage::Format_RGB32) {
+ softMaskData.resize(w * h);
+ uchar *sdata = (uchar *)softMaskData.data();
+ for (int y = 0; y < h; ++y) {
+ const QRgb *rgb = (const QRgb *)image.scanLine(y);
+ for (int x = 0; x < w; ++x) {
+ uchar alpha = qAlpha(*rgb);
+ *sdata++ = alpha;
+ hasMask |= (alpha < 255);
+ hasAlpha |= (alpha != 0 && alpha != 255);
+ ++rgb;
+ }
+ }
+ }
+ } else {
+ imageData.resize(colorMode == QPrinter::GrayScale ? w * h : 3 * w * h);
+ uchar *data = (uchar *)imageData.data();
+ softMaskData.resize(w * h);
+ uchar *sdata = (uchar *)softMaskData.data();
+ for (int y = 0; y < h; ++y) {
+ const QRgb *rgb = (const QRgb *)image.scanLine(y);
+ if (colorMode == QPrinter::GrayScale) {
+ for (int x = 0; x < w; ++x) {
+ *(data++) = qGray(*rgb);
+ uchar alpha = qAlpha(*rgb);
+ *sdata++ = alpha;
+ hasMask |= (alpha < 255);
+ hasAlpha |= (alpha != 0 && alpha != 255);
+ ++rgb;
+ }
+ } else {
+ for (int x = 0; x < w; ++x) {
+ *(data++) = qRed(*rgb);
+ *(data++) = qGreen(*rgb);
+ *(data++) = qBlue(*rgb);
+ uchar alpha = qAlpha(*rgb);
+ *sdata++ = alpha;
+ hasMask |= (alpha < 255);
+ hasAlpha |= (alpha != 0 && alpha != 255);
+ ++rgb;
+ }
+ }
+ }
+ if (format == QImage::Format_RGB32)
+ hasAlpha = hasMask = false;
+ }
+ int maskObject = 0;
+ int softMaskObject = 0;
+ if (hasAlpha) {
+ softMaskObject = writeImage(softMaskData, w, h, 8, 0, 0);
+ } else if (hasMask) {
+ // dither the soft mask to 1bit and add it. This also helps PDF viewers
+ // without transparency support
+ int bytesPerLine = (w + 7) >> 3;
+ QByteArray mask(bytesPerLine * h, 0);
+ uchar *mdata = (uchar *)mask.data();
+ const uchar *sdata = (const uchar *)softMaskData.constData();
+ for (int y = 0; y < h; ++y) {
+ for (int x = 0; x < w; ++x) {
+ if (*sdata)
+ mdata[x>>3] |= (0x80 >> (x&7));
+ ++sdata;
+ }
+ mdata += bytesPerLine;
+ }
+ maskObject = writeImage(mask, w, h, 1, 0, 0);
+ }
+ object = writeImage(imageData, w, h, colorMode == QPrinter::GrayScale ? 8 : 32,
+ maskObject, softMaskObject, dct);
+ }
+ imageCache.insert(serial_no, object);
+ return object;
+}
+
+void QPdfEnginePrivate::drawTextItem(const QPointF &p, const QTextItemInt &ti)
+{
+ if (ti.charFormat.isAnchor()) {
+ qreal size = ti.fontEngine->fontDef.pixelSize;
+#ifdef Q_WS_WIN
+ if (ti.fontEngine->type() == QFontEngine::Win) {
+ QFontEngineWin *fe = static_cast<QFontEngineWin *>(ti.fontEngine);
+ size = fe->tm.w.tmHeight;
+ }
+#endif
+ int synthesized = ti.fontEngine->synthesized();
+ qreal stretch = synthesized & QFontEngine::SynthesizedStretch ? ti.fontEngine->fontDef.stretch/100. : 1.;
+
+ QTransform trans;
+ // Build text rendering matrix (Trm). We need it to map the text area to user
+ // space units on the PDF page.
+ trans = QTransform(size*stretch, 0, 0, size, 0, 0);
+ // Apply text matrix (Tm).
+ trans *= QTransform(1,0,0,-1,p.x(),p.y());
+ // Apply page displacement (Identity for first page).
+ trans *= stroker.matrix;
+ // Apply Current Transformation Matrix (CTM)
+ trans *= pageMatrix();
+ qreal x1, y1, x2, y2;
+ trans.map(0, 0, &x1, &y1);
+ trans.map(ti.width.toReal()/size, (ti.ascent.toReal()-ti.descent.toReal())/size, &x2, &y2);
+
+ uint annot = addXrefEntry(-1);
+#ifdef Q_DEBUG_PDF_LINKS
+ xprintf("<<\n/Type /Annot\n/Subtype /Link\n/Rect [%f %f %f %f]\n/Border [16 16 1]\n/A <<\n",
+#else
+ xprintf("<<\n/Type /Annot\n/Subtype /Link\n/Rect [%f %f %f %f]\n/Border [0 0 0]\n/A <<\n",
+#endif
+ static_cast<double>(x1),
+ static_cast<double>(y1),
+ static_cast<double>(x2),
+ static_cast<double>(y2));
+ xprintf("/Type /Action\n/S /URI\n/URI (%s)\n",
+ ti.charFormat.anchorHref().toLatin1().constData());
+ xprintf(">>\n>>\n");
+ xprintf("endobj\n");
+
+ if (!currentPage->annotations.contains(annot)) {
+ currentPage->annotations.append(annot);
+ }
+ }
+
+ QPdfBaseEnginePrivate::drawTextItem(p, ti);
+}
+
+QTransform QPdfEnginePrivate::pageMatrix() const
+{
+ qreal scale = 72./resolution;
+ QTransform tmp(scale, 0.0, 0.0, -scale, 0.0, height());
+ if (!fullPage) {
+ QRect r = pageRect();
+ tmp.translate(r.left(), r.top());
+ }
+ return tmp;
+}
+
+void QPdfEnginePrivate::newPage()
+{
+ if (currentPage && currentPage->pageSize.isEmpty())
+ currentPage->pageSize = QSize(width(), height());
+ writePage();
+
+ delete currentPage;
+ currentPage = new QPdfPage;
+ currentPage->pageSize = QSize(width(), height());
+ stroker.stream = currentPage;
+ pages.append(requestObject());
+
+ *currentPage << "/GSa gs /CSp cs /CSp CS\n"
+ << QPdf::generateMatrix(pageMatrix())
+ << "q q\n";
+}
+
+
+// For strings up to 10000 bytes only !
+void QPdfEnginePrivate::xprintf(const char* fmt, ...)
+{
+ if (!stream)
+ return;
+
+ const int msize = 10000;
+ char buf[msize];
+
+ va_list args;
+ va_start(args, fmt);
+ int bufsize = qvsnprintf(buf, msize, fmt, args);
+
+ Q_ASSERT(bufsize<msize);
+
+ va_end(args);
+
+ stream->writeRawData(buf, bufsize);
+ streampos += bufsize;
+}
+
+int QPdfEnginePrivate::writeCompressed(QIODevice *dev)
+{
+#ifndef QT_NO_COMPRESS
+ if (do_compress) {
+ int size = QPdfPage::chunkSize();
+ int sum = 0;
+ ::z_stream zStruct;
+ zStruct.zalloc = Z_NULL;
+ zStruct.zfree = Z_NULL;
+ zStruct.opaque = Z_NULL;
+ if (::deflateInit(&zStruct, Z_DEFAULT_COMPRESSION) != Z_OK) {
+ qWarning("QPdfStream::writeCompressed: Error in deflateInit()");
+ return sum;
+ }
+ zStruct.avail_in = 0;
+ QByteArray in, out;
+ out.resize(size);
+ while (!dev->atEnd() || zStruct.avail_in != 0) {
+ if (zStruct.avail_in == 0) {
+ in = dev->read(size);
+ zStruct.avail_in = in.size();
+ zStruct.next_in = reinterpret_cast<unsigned char*>(in.data());
+ if (in.size() <= 0) {
+ qWarning("QPdfStream::writeCompressed: Error in read()");
+ ::deflateEnd(&zStruct);
+ return sum;
+ }
+ }
+ zStruct.next_out = reinterpret_cast<unsigned char*>(out.data());
+ zStruct.avail_out = out.size();
+ if (::deflate(&zStruct, 0) != Z_OK) {
+ qWarning("QPdfStream::writeCompressed: Error in deflate()");
+ ::deflateEnd(&zStruct);
+ return sum;
+ }
+ int written = out.size() - zStruct.avail_out;
+ stream->writeRawData(out.constData(), written);
+ streampos += written;
+ sum += written;
+ }
+ int ret;
+ do {
+ zStruct.next_out = reinterpret_cast<unsigned char*>(out.data());
+ zStruct.avail_out = out.size();
+ ret = ::deflate(&zStruct, Z_FINISH);
+ if (ret != Z_OK && ret != Z_STREAM_END) {
+ qWarning("QPdfStream::writeCompressed: Error in deflate()");
+ ::deflateEnd(&zStruct);
+ return sum;
+ }
+ int written = out.size() - zStruct.avail_out;
+ stream->writeRawData(out.constData(), written);
+ streampos += written;
+ sum += written;
+ } while (ret == Z_OK);
+
+ ::deflateEnd(&zStruct);
+
+ return sum;
+ } else
+#endif
+ {
+ QByteArray arr;
+ int sum = 0;
+ while (!dev->atEnd()) {
+ arr = dev->read(QPdfPage::chunkSize());
+ stream->writeRawData(arr.constData(), arr.size());
+ streampos += arr.size();
+ sum += arr.size();
+ }
+ return sum;
+ }
+}
+
+int QPdfEnginePrivate::writeCompressed(const char *src, int len)
+{
+#ifndef QT_NO_COMPRESS
+ if(do_compress) {
+ uLongf destLen = len + len/100 + 13; // zlib requirement
+ Bytef* dest = new Bytef[destLen];
+ if (Z_OK == ::compress(dest, &destLen, (const Bytef*) src, (uLongf)len)) {
+ stream->writeRawData((const char*)dest, destLen);
+ } else {
+ qWarning("QPdfStream::writeCompressed: Error in compress()");
+ destLen = 0;
+ }
+ delete [] dest;
+ len = destLen;
+ } else
+#endif
+ {
+ stream->writeRawData(src,len);
+ }
+ streampos += len;
+ return len;
+}
+
+int QPdfEnginePrivate::writeImage(const QByteArray &data, int width, int height, int depth,
+ int maskObject, int softMaskObject, bool dct)
+{
+ int image = addXrefEntry(-1);
+ xprintf("<<\n"
+ "/Type /XObject\n"
+ "/Subtype /Image\n"
+ "/Width %d\n"
+ "/Height %d\n", width, height);
+
+ if (depth == 1) {
+ xprintf("/ImageMask true\n"
+ "/Decode [1 0]\n");
+ } else {
+ xprintf("/BitsPerComponent 8\n"
+ "/ColorSpace %s\n", (depth == 32) ? "/DeviceRGB" : "/DeviceGray");
+ }
+ if (maskObject > 0)
+ xprintf("/Mask %d 0 R\n", maskObject);
+ if (softMaskObject > 0)
+ xprintf("/SMask %d 0 R\n", softMaskObject);
+
+ int lenobj = requestObject();
+ xprintf("/Length %d 0 R\n", lenobj);
+ if (interpolateImages)
+ xprintf("/Interpolate true\n");
+ int len = 0;
+ if (dct) {
+ //qDebug() << "DCT";
+ xprintf("/Filter /DCTDecode\n>>\nstream\n");
+ write(data);
+ len = data.length();
+ } else {
+ if (do_compress)
+ xprintf("/Filter /FlateDecode\n>>\nstream\n");
+ else
+ xprintf(">>\nstream\n");
+ len = writeCompressed(data);
+ }
+ xprintf("endstream\n"
+ "endobj\n");
+ addXrefEntry(lenobj);
+ xprintf("%d\n"
+ "endobj\n", len);
+ return image;
+}
+
+
+void QPdfEnginePrivate::writeHeader()
+{
+ addXrefEntry(0,false);
+
+ xprintf("%%PDF-1.4\n");
+
+ writeInfo();
+
+ catalog = addXrefEntry(-1);
+ pageRoot = requestObject();
+ xprintf("<<\n"
+ "/Type /Catalog\n"
+ "/Pages %d 0 R\n"
+ ">>\n"
+ "endobj\n", pageRoot);
+
+ // graphics state
+ graphicsState = addXrefEntry(-1);
+ xprintf("<<\n"
+ "/Type /ExtGState\n"
+ "/SA true\n"
+ "/SM 0.02\n"
+ "/ca 1.0\n"
+ "/CA 1.0\n"
+ "/AIS false\n"
+ "/SMask /None"
+ ">>\n"
+ "endobj\n");
+
+ // color space for pattern
+ patternColorSpace = addXrefEntry(-1);
+ xprintf("[/Pattern /DeviceRGB]\n"
+ "endobj\n");
+}
+
+void QPdfEnginePrivate::writeInfo()
+{
+ info = addXrefEntry(-1);
+ xprintf("<<\n"
+ "/Title (%s)\n"
+// "/Author (%s)\n"
+ "/Creator (%s)\n"
+ "/Producer (Qt " QT_VERSION_STR " (C) 1992-$THISYEAR$ Nokia Corporation and/or its subsidiary(-ies))\n",
+ title.toUtf8().constData(),
+// author.toUtf8().constData(),
+ creator.toUtf8().constData());
+
+ QDateTime now = QDateTime::currentDateTime().toUTC();
+ QTime t = now.time();
+ QDate d = now.date();
+ xprintf("/CreationDate (D:%d%02d%02d%02d%02d%02d)\n",
+ d.year(),
+ d.month(),
+ d.day(),
+ t.hour(),
+ t.minute(),
+ t.second());
+ xprintf(">>\n"
+ "endobj\n");
+}
+
+void QPdfEnginePrivate::writePageRoot()
+{
+ addXrefEntry(pageRoot);
+
+ xprintf("<<\n"
+ "/Type /Pages\n"
+ "/Kids \n"
+ "[\n");
+ int size = pages.size();
+ for (int i = 0; i < size; ++i)
+ xprintf("%d 0 R\n", pages[i]);
+ xprintf("]\n");
+
+ //xprintf("/Group <</S /Transparency /I true /K false>>\n");
+ xprintf("/Count %d\n", pages.size());
+
+ xprintf("/ProcSet [/PDF /Text /ImageB /ImageC]\n"
+ ">>\n"
+ "endobj\n");
+}
+
+
+void QPdfEnginePrivate::embedFont(QFontSubset *font)
+{
+ //qDebug() << "embedFont" << font->object_id;
+ int fontObject = font->object_id;
+ QByteArray fontData = font->toTruetype();
+#ifdef FONT_DUMP
+ static int i = 0;
+ QString fileName("font%1.ttf");
+ fileName = fileName.arg(i++);
+ QFile ff(fileName);
+ ff.open(QFile::WriteOnly);
+ ff.write(fontData);
+ ff.close();
+#endif
+
+ int fontDescriptor = requestObject();
+ int fontstream = requestObject();
+ int cidfont = requestObject();
+ int toUnicode = requestObject();
+
+ QFontEngine::Properties properties = font->fontEngine->properties();
+
+ {
+ qreal scale = 1000/properties.emSquare.toReal();
+ addXrefEntry(fontDescriptor);
+ QByteArray descriptor;
+ QPdf::ByteStream s(&descriptor);
+ s << "<< /Type /FontDescriptor\n"
+ "/FontName /Q";
+ int tag = fontDescriptor;
+ for (int i = 0; i < 5; ++i) {
+ s << (char)('A' + (tag % 26));
+ tag /= 26;
+ }
+ s << "+" << properties.postscriptName << "\n"
+ "/Flags " << 4 << "\n"
+ "/FontBBox ["
+ << properties.boundingBox.x()*scale
+ << -(properties.boundingBox.y() + properties.boundingBox.height())*scale
+ << (properties.boundingBox.x() + properties.boundingBox.width())*scale
+ << -properties.boundingBox.y()*scale << "]\n"
+ "/ItalicAngle " << properties.italicAngle.toReal() << "\n"
+ "/Ascent " << properties.ascent.toReal()*scale << "\n"
+ "/Descent " << -properties.descent.toReal()*scale << "\n"
+ "/CapHeight " << properties.capHeight.toReal()*scale << "\n"
+ "/StemV " << properties.lineWidth.toReal()*scale << "\n"
+ "/FontFile2 " << fontstream << "0 R\n"
+ ">> endobj\n";
+ write(descriptor);
+ }
+ {
+ addXrefEntry(fontstream);
+ QByteArray header;
+ QPdf::ByteStream s(&header);
+
+ int length_object = requestObject();
+ s << "<<\n"
+ "/Length1 " << fontData.size() << "\n"
+ "/Length " << length_object << "0 R\n";
+ if (do_compress)
+ s << "/Filter /FlateDecode\n";
+ s << ">>\n"
+ "stream\n";
+ write(header);
+ int len = writeCompressed(fontData);
+ write("endstream\n"
+ "endobj\n");
+ addXrefEntry(length_object);
+ xprintf("%d\n"
+ "endobj\n", len);
+ }
+ {
+ addXrefEntry(cidfont);
+ QByteArray cid;
+ QPdf::ByteStream s(&cid);
+ s << "<< /Type /Font\n"
+ "/Subtype /CIDFontType2\n"
+ "/BaseFont /" << properties.postscriptName << "\n"
+ "/CIDSystemInfo << /Registry (Adobe) /Ordering (Identity) /Supplement 0 >>\n"
+ "/FontDescriptor " << fontDescriptor << "0 R\n"
+ "/CIDToGIDMap /Identity\n"
+ << font->widthArray() <<
+ ">>\n"
+ "endobj\n";
+ write(cid);
+ }
+ {
+ addXrefEntry(toUnicode);
+ QByteArray touc = font->createToUnicodeMap();
+ xprintf("<< /Length %d >>\n"
+ "stream\n", touc.length());
+ write(touc);
+ write("endstream\n"
+ "endobj\n");
+ }
+ {
+ addXrefEntry(fontObject);
+ QByteArray font;
+ QPdf::ByteStream s(&font);
+ s << "<< /Type /Font\n"
+ "/Subtype /Type0\n"
+ "/BaseFont /" << properties.postscriptName << "\n"
+ "/Encoding /Identity-H\n"
+ "/DescendantFonts [" << cidfont << "0 R]\n"
+ "/ToUnicode " << toUnicode << "0 R"
+ ">>\n"
+ "endobj\n";
+ write(font);
+ }
+}
+
+
+void QPdfEnginePrivate::writeFonts()
+{
+ for (QHash<QFontEngine::FaceId, QFontSubset *>::iterator it = fonts.begin(); it != fonts.end(); ++it) {
+ embedFont(*it);
+ delete *it;
+ }
+ fonts.clear();
+}
+
+void QPdfEnginePrivate::writePage()
+{
+ if (pages.empty())
+ return;
+
+ *currentPage << "Q Q\n";
+
+ uint pageStream = requestObject();
+ uint pageStreamLength = requestObject();
+ uint resources = requestObject();
+ uint annots = requestObject();
+
+ addXrefEntry(pages.last());
+ xprintf("<<\n"
+ "/Type /Page\n"
+ "/Parent %d 0 R\n"
+ "/Contents %d 0 R\n"
+ "/Resources %d 0 R\n"
+ "/Annots %d 0 R\n"
+ "/MediaBox [0 0 %d %d]\n"
+ ">>\n"
+ "endobj\n",
+ pageRoot, pageStream, resources, annots,
+ // make sure we use the pagesize from when we started the page, since the user may have changed it
+ currentPage->pageSize.width(), currentPage->pageSize.height());
+
+ addXrefEntry(resources);
+ xprintf("<<\n"
+ "/ColorSpace <<\n"
+ "/PCSp %d 0 R\n"
+ "/CSp /DeviceRGB\n"
+ "/CSpg /DeviceGray\n"
+ ">>\n"
+ "/ExtGState <<\n"
+ "/GSa %d 0 R\n",
+ patternColorSpace, graphicsState);
+
+ for (int i = 0; i < currentPage->graphicStates.size(); ++i)
+ xprintf("/GState%d %d 0 R\n", currentPage->graphicStates.at(i), currentPage->graphicStates.at(i));
+ xprintf(">>\n");
+
+ xprintf("/Pattern <<\n");
+ for (int i = 0; i < currentPage->patterns.size(); ++i)
+ xprintf("/Pat%d %d 0 R\n", currentPage->patterns.at(i), currentPage->patterns.at(i));
+ xprintf(">>\n");
+
+ xprintf("/Font <<\n");
+ for (int i = 0; i < currentPage->fonts.size();++i)
+ xprintf("/F%d %d 0 R\n", currentPage->fonts[i], currentPage->fonts[i]);
+ xprintf(">>\n");
+
+ xprintf("/XObject <<\n");
+ for (int i = 0; i<currentPage->images.size(); ++i) {
+ xprintf("/Im%d %d 0 R\n", currentPage->images.at(i), currentPage->images.at(i));
+ }
+ xprintf(">>\n");
+
+ xprintf(">>\n"
+ "endobj\n");
+
+ addXrefEntry(annots);
+ xprintf("[ ");
+ for (int i = 0; i<currentPage->annotations.size(); ++i) {
+ xprintf("%d 0 R ", currentPage->annotations.at(i));
+ }
+ xprintf("]\nendobj\n");
+
+ addXrefEntry(pageStream);
+ xprintf("<<\n"
+ "/Length %d 0 R\n", pageStreamLength); // object number for stream length object
+ if (do_compress)
+ xprintf("/Filter /FlateDecode\n");
+
+ xprintf(">>\n");
+ xprintf("stream\n");
+ QIODevice *content = currentPage->stream();
+ int len = writeCompressed(content);
+ xprintf("endstream\n"
+ "endobj\n");
+
+ addXrefEntry(pageStreamLength);
+ xprintf("%d\nendobj\n",len);
+}
+
+void QPdfEnginePrivate::writeTail()
+{
+ writePage();
+ writeFonts();
+ writePageRoot();
+ addXrefEntry(xrefPositions.size(),false);
+ xprintf("xref\n"
+ "0 %d\n"
+ "%010d 65535 f \n", xrefPositions.size()-1, xrefPositions[0]);
+
+ for (int i = 1; i < xrefPositions.size()-1; ++i)
+ xprintf("%010d 00000 n \n", xrefPositions[i]);
+
+ xprintf("trailer\n"
+ "<<\n"
+ "/Size %d\n"
+ "/Info %d 0 R\n"
+ "/Root %d 0 R\n"
+ ">>\n"
+ "startxref\n%d\n"
+ "%%%%EOF\n",
+ xrefPositions.size()-1, info, catalog, xrefPositions.last());
+}
+
+int QPdfEnginePrivate::addXrefEntry(int object, bool printostr)
+{
+ if (object < 0)
+ object = requestObject();
+
+ if (object>=xrefPositions.size())
+ xrefPositions.resize(object+1);
+
+ xrefPositions[object] = streampos;
+ if (printostr)
+ xprintf("%d 0 obj\n",object);
+
+ return object;
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PRINTER