--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/qt3support/painting/q3paintengine_svg.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1538 @@
+/****************************************************************************
+**
+** 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 Qt3Support 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 <private/qpainter_p.h>
+#include <private/qpaintengine_p.h>
+#include "qfile.h"
+#include "qimage.h"
+#include "qlist.h"
+#include "qmap.h"
+#include "q3paintengine_svg_p.h"
+#include "qpainter.h"
+#include "qpixmap.h"
+#include "qregexp.h"
+#include "qtextstream.h"
+
+#include <math.h>
+
+QT_BEGIN_NAMESPACE
+
+static const double deg2rad = 0.017453292519943295769; // pi/180
+static const char piData[] = "version=\"1.0\" standalone=\"no\"";
+static const char publicId[] = "-//W3C//DTD SVG 20001102//EN";
+static const char systemId[] = "http://www.w3.org/TR/2000/CR-SVG-20001102/DTD/svg-20001102.dtd";
+
+static QString qt_svg_compose_path(const QPainterPath &path);
+
+struct QImgElement {
+ QDomElement element;
+ QImage image;
+ Q_DUMMY_COMPARISON_OPERATOR(QImgElement)
+};
+
+struct QPixElement {
+ QDomElement element;
+ QPixmap pixmap;
+ Q_DUMMY_COMPARISON_OPERATOR(QPixElement)
+};
+
+struct Q3SVGPaintEngineState {
+ double textx, texty; // current text position
+ int textalign; // text alignment
+ Q_DUMMY_COMPARISON_OPERATOR(Q3SVGPaintEngineState)
+};
+
+typedef QList<QImgElement> ImageList;
+typedef QList<QPixElement> PixmapList;
+typedef QList<Q3SVGPaintEngineState> StateList;
+
+enum ElementType {
+ InvalidElement = 0,
+ AnchorElement,
+ CircleElement,
+ ClipElement,
+ CommentElement,
+ DescElement,
+ EllipseElement,
+ GroupElement,
+ ImageElement,
+ LineElement,
+ PolylineElement,
+ PolygonElement,
+ PathElement,
+ RectElement,
+ SvgElement,
+ TextElement,
+ TitleElement,
+ TSpanElement
+};
+
+typedef QMap<QString,ElementType> QSvgTypeMap;
+static QSvgTypeMap *qSvgTypeMap=0; // element types
+static QMap<QString,QString> *qSvgColMap=0; // recognized color keyword names
+
+class Q3SVGPaintEnginePrivate : public QPaintEnginePrivate
+{
+ Q_DECLARE_PUBLIC(Q3SVGPaintEngine)
+
+public:
+ Q3SVGPaintEnginePrivate()
+ : dirtyTransform(false), dirtyStyle(false), currentClip(0),
+ dev(0), wwidth(0), wheight(0) {}
+ void appendChild(QDomElement &e, QPicturePrivate::PaintCommand c);
+ void applyStyle(QDomElement *e, QPicturePrivate::PaintCommand c) const;
+ void applyTransform(QDomElement *e) const;
+ double parseLen(const QString &str, bool *ok=0, bool horiz=true) const;
+ int lenToInt(const QDomNamedNodeMap &map, const QString &attr, int def = 0) const;
+ double lenToDouble(const QDomNamedNodeMap &map, const QString &attr, int def = 0) const;
+ bool play(const QDomNode &node, QPainter *p);
+ void setTransform(const QString &tr, QPainter *p);
+ void restoreAttributes(QPainter *p);
+ void saveAttributes(QPainter *p);
+ void setStyle(const QString &s, QPainter *p);
+ void setStyleProperty(const QString &prop, const QString &val, QPen *pen, QFont *font,
+ int *talign, QPainter *p);
+ void drawPath(const QString &data, QPainter *p);
+ QColor parseColor(const QString &col);
+ void init() {
+ QDomImplementation domImpl;
+ QDomDocumentType docType = domImpl.createDocumentType(QLatin1String("svg"), QLatin1String(publicId), QLatin1String(systemId));
+ doc = domImpl.createDocument(QLatin1String("http://www.w3.org/2000/svg"), QLatin1String("svg"), docType);
+ doc.insertBefore(doc.createProcessingInstruction(QLatin1String("xml"), QLatin1String(piData)), doc.firstChild());
+ current = doc.documentElement();
+ images.clear();
+ pixmaps.clear();
+
+ doc.documentElement().setAttribute(QLatin1String("xmlns:xlink"), QLatin1String("http://www.w3.org/1999/xlink"));
+ }
+
+
+ bool dirtyTransform;
+ bool dirtyStyle;
+ QRect brect; // bounding rectangle
+ QDomDocument doc; // document tree
+ QDomNode current;
+
+ ImageList images; // old private
+ PixmapList pixmaps;
+ StateList stack;
+ int currentClip;
+
+// QPoint curPt;
+ Q3SVGPaintEngineState *curr;
+// QPainter *pt; // only used by recursive play() et al
+ QPen cpen;
+ QBrush cbrush;
+ QFont cfont;
+ QMatrix worldMatrix;
+ const QPaintDevice *dev;
+ int wwidth;
+ int wheight;
+};
+
+Q3SVGPaintEngine::Q3SVGPaintEngine()
+ : QPaintEngine(*(new Q3SVGPaintEnginePrivate), AllFeatures)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->init();
+}
+
+Q3SVGPaintEngine::Q3SVGPaintEngine(Q3SVGPaintEnginePrivate &dptr)
+ : QPaintEngine(dptr, AllFeatures)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->init();
+}
+
+Q3SVGPaintEngine::~Q3SVGPaintEngine()
+{
+ delete qSvgTypeMap; qSvgTypeMap = 0; // static
+ delete qSvgColMap; qSvgColMap = 0;
+}
+
+bool Q3SVGPaintEngine::begin(QPaintDevice *pdev)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->dirtyTransform = d->dirtyStyle = false;
+ d->dev = pdev;
+ setActive(true);
+ return true;
+}
+
+bool Q3SVGPaintEngine::end()
+{
+ Q_D(Q3SVGPaintEngine);
+ d->dev = 0;
+ setActive(false);
+ return true;
+}
+
+void Q3SVGPaintEngine::updateState(const QPaintEngineState &state)
+{
+ QPaintEngine::DirtyFlags flags = state.state();
+ if (flags & DirtyPen) updatePen(state.pen());
+ if ((flags & DirtyBrush) || (flags & DirtyBrushOrigin))
+ updateBrush(state.brush(), state.brushOrigin());
+ if (flags & DirtyBackground) updateBackground(state.backgroundMode(), state.backgroundBrush());
+ if (flags & DirtyFont) updateFont(state.font());
+ if (flags & DirtyTransform) updateMatrix(state.matrix());
+ if (flags & DirtyClipRegion) updateClipRegion(state.clipRegion(), state.clipOperation());
+ if (flags & DirtyClipPath) updateClipPath(state.clipPath(), state.clipOperation());
+}
+
+void Q3SVGPaintEngine::updatePen(const QPen &pen)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->cpen = pen;
+ d->dirtyStyle = true;
+}
+
+void Q3SVGPaintEngine::updateBrush(const QBrush &brush, const QPointF &)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->cbrush = brush;
+ d->dirtyStyle = true;
+}
+
+void Q3SVGPaintEngine::updateFont(const QFont &font)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->cfont = font;
+ d->dirtyStyle = true;
+}
+
+void Q3SVGPaintEngine::updateBackground(Qt::BGMode, const QBrush &)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->dirtyStyle = true;
+}
+
+void Q3SVGPaintEngine::updateMatrix(const QMatrix &matrix)
+{
+ Q_D(Q3SVGPaintEngine);
+ d->dirtyTransform = true;
+ d->worldMatrix = matrix;
+// d->wwidth = ps->ww;
+// d->wheight = ps->wh;
+}
+
+void Q3SVGPaintEngine::updateClipPath(const QPainterPath &path, Qt::ClipOperation op)
+{
+ Q_D(Q3SVGPaintEngine);
+ if (op == Qt::NoClip)
+ return;
+
+ QDomElement e;
+ d->currentClip++;
+ e = d->doc.createElement(QLatin1String("clipPath"));
+ e.setAttribute(QLatin1String("id"), QString::fromLatin1("clip%1").arg(d->currentClip));
+
+ QDomElement path_element = d->doc.createElement(QLatin1String("path"));
+ path_element.setAttribute(QLatin1String("d"), qt_svg_compose_path(path));
+ e.appendChild(path_element);
+
+ d->appendChild(e, QPicturePrivate::PdcSetClipPath);
+}
+
+void Q3SVGPaintEngine::updateClipRegion(const QRegion &clipRegion, Qt::ClipOperation op)
+{
+ QPainterPath clipPath;
+ clipPath.addRegion(clipRegion);
+ updateClipPath(clipPath, op);
+}
+
+void Q3SVGPaintEngine::updateRenderHints(QPainter::RenderHints)
+{
+}
+
+void Q3SVGPaintEngine::drawRect(const QRectF &r)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e;
+ e = d->doc.createElement(QLatin1String("rect"));
+
+ e.setAttribute(QLatin1String("x"), r.x());
+ e.setAttribute(QLatin1String("y"), r.y());
+ e.setAttribute(QLatin1String("width"), r.width());
+ e.setAttribute(QLatin1String("height"), r.height());
+ d->appendChild(e, QPicturePrivate::PdcDrawRect);
+}
+
+void Q3SVGPaintEngine::drawPoint(const QPointF &p)
+{
+ QLineF l(p, p);
+ drawLines(&l, 1);
+}
+
+void Q3SVGPaintEngine::drawPoints(const QPointF *points, int pointCount)
+{
+ for (int i = 0; i < pointCount; ++i) {
+ QLineF l(points[i], points[i]);
+ drawLines(&l, 1);
+ }
+}
+
+void Q3SVGPaintEngine::drawEllipse(const QRect &r)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e;
+
+ if (r.width() == r.height()) {
+ e = d->doc.createElement(QLatin1String("circle"));
+ double cx = r.x() + (r.width() / 2.0);
+ double cy = r.y() + (r.height() / 2.0);
+ e.setAttribute(QLatin1String("cx"), cx);
+ e.setAttribute(QLatin1String("cy"), cy);
+ e.setAttribute(QLatin1String("r"), cx - r.x());
+ } else {
+ e = d->doc.createElement(QLatin1String("ellipse"));
+ double cx = r.x() + (r.width() / 2.0);
+ double cy = r.y() + (r.height() / 2.0);
+ e.setAttribute(QLatin1String("cx"), cx);
+ e.setAttribute(QLatin1String("cy"), cy);
+ e.setAttribute(QLatin1String("rx"), cx - r.x());
+ e.setAttribute(QLatin1String("ry"), cy - r.y());
+ }
+ d->appendChild(e, QPicturePrivate::PdcDrawEllipse);
+}
+
+void Q3SVGPaintEngine::drawLine(const QLineF &line)
+{
+ drawLines(&line, 1);
+}
+
+void Q3SVGPaintEngine::drawLines(const QLineF *lines, int lineCount)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e;
+
+ for (int i = 0; i < lineCount; ++i) {
+ e = d->doc.createElement(QLatin1String("line"));
+ e.setAttribute(QLatin1String("x1"), lines[i].x1());
+ e.setAttribute(QLatin1String("y1"), lines[i].y1());
+ e.setAttribute(QLatin1String("x2"), lines[i].x2());
+ e.setAttribute(QLatin1String("y2"), lines[i].y2());
+ d->appendChild(e, QPicturePrivate::PdcDrawLineSegments);
+ }
+}
+
+void Q3SVGPaintEngine::drawPath(const QPainterPath &path)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e = d->doc.createElement(QLatin1String("path"));
+ e.setAttribute(QLatin1String("d"), qt_svg_compose_path(path));
+ d->appendChild(e, QPicturePrivate::PdcDrawPath);
+}
+
+void Q3SVGPaintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode)
+{
+ Q_D(Q3SVGPaintEngine);
+ QString str;
+ if (mode == PolylineMode) {
+ QDomElement e = d->doc.createElement(QLatin1String("polyline"));
+ for (int i = 0; i < pointCount; ++i) {
+ QString tmp;
+ tmp.sprintf("%f %f ", points[i].x(), points[i].y());
+ str += tmp;
+ }
+ e.setAttribute(QLatin1String("points"), str.trimmed());
+ d->appendChild(e, QPicturePrivate::PdcDrawPolyline);
+ } else {
+ QDomElement e = d->doc.createElement(QLatin1String("polygon"));
+ for (int i = 0; i < pointCount; ++i) {
+ QString tmp;
+ tmp.sprintf("%f %f ", points[i].x(), points[i].y());
+ str += tmp;
+ }
+ e.setAttribute(QLatin1String("points"), str.trimmed());
+ d->appendChild(e, QPicturePrivate::PdcDrawPolygon);
+ }
+}
+
+void Q3SVGPaintEngine::drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode)
+{
+ QPolygonF poly;
+ for (int i = 0; i < pointCount; ++i)
+ poly << points[i];
+ drawPolygon(poly.constData(), pointCount, mode);
+}
+
+void Q3SVGPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF & /* sr */)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e = d->doc.createElement(QLatin1String("image"));
+ e.setAttribute(QLatin1String("x"), r.x());
+ e.setAttribute(QLatin1String("y"), r.y());
+ e.setAttribute(QLatin1String("width"), r.width());
+ e.setAttribute(QLatin1String("height"), r.height());
+
+ QPixElement pe;
+ pe.element = e;
+ pe.pixmap = pm;
+ d->pixmaps.append(pe);
+
+ // saving to disk and setting the xlink:href attribute will be
+ // done later in save() once we now the svg document name.
+ d->appendChild(e, QPicturePrivate::PdcDrawPixmap);
+}
+
+void Q3SVGPaintEngine::drawTiledPixmap(const QRectF & /* r */, const QPixmap & /* pixmap */,
+ const QPointF & /* s */)
+{
+}
+
+void Q3SVGPaintEngine::drawTextItem(const QPointF &p, const QTextItem &ti)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e = d->doc.createElement(QLatin1String("text"));
+// int x, y;
+// const QRect r(p.x(), p.y(), ti.width, ti.ascent + ti.descent);
+ // horizontal text alignment
+ // if ((ti.flags & Qt::AlignHCenter) != 0) {
+// x = r.x() + r.width() / 2;
+// e.setAttribute("text-anchor", "middle");
+// } else if ((textflags & Qt::AlignRight) != 0) {
+// x = r.right();
+// e.setAttribute("text-anchor", "end");
+// } else {
+// x = r.x();
+// }
+// // vertical text alignment
+// if ((textflags & Qt::AlignVCenter) != 0)
+// y = r.y() + (r.height() + ti.ascent) / 2;
+// else if ((textflags & Qt::AlignBottom) != 0)
+// y = r.bottom();
+// else
+// y = r.y() + ti.ascent;
+// if (x)
+// e.setAttribute("x", x);
+// if (y)
+// e.setAttribute("y", y);
+ e.setAttribute(QLatin1String("x"), p.x());
+ e.setAttribute(QLatin1String("y"), p.y());
+ e.appendChild(d->doc.createTextNode(ti.text()));
+}
+
+void Q3SVGPaintEngine::drawImage(const QRectF &r, const QImage &im,
+ const QRectF &, Qt::ImageConversionFlags)
+{
+ Q_D(Q3SVGPaintEngine);
+ QDomElement e = d->doc.createElement(QLatin1String("image"));
+ e.setAttribute(QLatin1String("x"), r.x());
+ e.setAttribute(QLatin1String("y"), r.y());
+ e.setAttribute(QLatin1String("width"), r.width());
+ e.setAttribute(QLatin1String("height"), r.height());
+ QImgElement ie;
+ ie.element = e;
+ ie.image = im;
+ d->images.append(ie);
+ // saving to disk and setting the xlink:href attribute will be
+ // done later in save() once we now the svg document name.
+ d->appendChild(e, QPicturePrivate::PdcDrawImage);
+}
+
+
+/*!
+ Returns the SVG as a single string of XML.
+*/
+
+QString Q3SVGPaintEngine::toString() const
+{
+ Q_D(const Q3SVGPaintEngine);
+ if (d->doc.isNull())
+ return QString();
+
+ return d->doc.toString();
+}
+
+/*!
+ Saves the SVG to \a fileName.
+*/
+
+bool Q3SVGPaintEngine::save(const QString &fileName)
+{
+ Q_D(Q3SVGPaintEngine);
+ // guess svg id from fileName
+ QString svgName = fileName.endsWith(QLatin1String(".svg")) ?
+ fileName.left(fileName.length()-4) : fileName;
+
+ // now we have the info about name and dimensions available
+ QDomElement root = d->doc.documentElement();
+ root.setAttribute(QLatin1String("id"), svgName);
+ // the standard doesn't take respect x and y. But we want a
+ // proper bounding rect. We make width and height bigger when
+ // writing out and subtract x and y when reading in.
+ root.setAttribute(QLatin1String("x"), d->brect.x());
+ root.setAttribute(QLatin1String("y"), d->brect.y());
+ root.setAttribute(QLatin1String("width"), d->brect.width() + d->brect.x());
+ root.setAttribute(QLatin1String("height"), d->brect.height() + d->brect.y());
+
+ // ... and know how to name any image files to be written out
+ int icount = 0;
+ ImageList::Iterator iit = d->images.begin();
+ for (; iit != d->images.end(); ++iit) {
+ QString href = QString::fromLatin1("%1_%2.png").arg(svgName).arg(icount);
+ (*iit).image.save(href, "PNG");
+ (*iit).element.setAttribute(QLatin1String("xlink:href"), href);
+ icount++;
+ }
+ PixmapList::Iterator pit = d->pixmaps.begin();
+ for (; pit != d->pixmaps.end(); ++pit) {
+ QString href = QString::fromLatin1("%1_%2.png").arg(svgName).arg(icount);
+ (*pit).pixmap.save(href, "PNG");
+ (*pit).element.setAttribute(QLatin1String("xlink:href"), href);
+ icount++;
+ }
+
+ QFile f(fileName);
+ if (!f.open (QIODevice::WriteOnly))
+ return false;
+ QTextStream s(&f);
+ s.setEncoding(QTextStream::UnicodeUTF8);
+ s << d->doc;
+
+ return true;
+}
+
+/*!
+ \overload
+
+ \a dev is the device to use for saving.
+*/
+
+bool Q3SVGPaintEngine::save(QIODevice *dev)
+{
+ Q_D(Q3SVGPaintEngine);
+#if defined(CHECK_RANGE)
+ if (!d->images.isEmpty() || !d->pixmaps.isEmpty())
+ qWarning("Q3SVGPaintEngine::save: skipping external images");
+#endif
+
+ QTextStream s(dev);
+ s.setEncoding(QTextStream::UnicodeUTF8);
+ s << d->doc;
+
+ return true;
+}
+
+/*!
+ Sets the bounding rectangle of the SVG to rectangle \a r.
+*/
+
+void Q3SVGPaintEngine::setBoundingRect(const QRect &r)
+{
+ d_func()->brect = r;
+}
+
+/*!
+ Returns the SVG's bounding rectangle.
+*/
+
+QRect Q3SVGPaintEngine::boundingRect() const
+{
+ return d_func()->brect;
+}
+
+/*!
+ Loads and parses a SVG from \a dev into the device. Returns true
+ on success (i.e. loaded and parsed without error); otherwise
+ returns false.
+*/
+
+bool Q3SVGPaintEngine::load(QIODevice *dev)
+{
+ return d_func()->doc.setContent(dev);
+}
+
+void Q3SVGPaintEnginePrivate::appendChild(QDomElement &e, QPicturePrivate::PaintCommand c)
+{
+ if (!e.isNull()) {
+ current.appendChild(e);
+ if (c == QPicturePrivate::PdcSave)
+ current = e;
+ // ### optimize application of attributes utilizing <g>
+ if (c == QPicturePrivate::PdcSetClipRegion || c == QPicturePrivate::PdcSetClipPath) {
+ QDomElement ne;
+ ne = doc.createElement(QLatin1String("g"));
+ ne.setAttribute(QLatin1String("style"), QString::fromLatin1("clip-path:url(#clip%1)").arg(currentClip));
+ if (dirtyTransform) {
+ applyTransform(&ne);
+ dirtyTransform = false;
+ }
+ current.appendChild(ne);
+ current = ne;
+ } else {
+ if (dirtyStyle) // only reset when entering
+ applyStyle(&e, c); // or leaving a <g> tag
+ if (dirtyTransform && e.tagName() != QLatin1String("g")) {
+ // same as above but not for <g> tags
+ applyTransform(&e);
+ if (c == QPicturePrivate::PdcSave)
+ dirtyTransform = false;
+ }
+ }
+ }
+}
+
+void Q3SVGPaintEnginePrivate::applyStyle(QDomElement *e, QPicturePrivate::PaintCommand c) const
+{
+ // ### do not write every attribute each time
+ QColor pcol = cpen.color();
+ QColor bcol = cbrush.color();
+ QString s;
+ if (c == QPicturePrivate::PdcDrawText2 || c == QPicturePrivate::PdcDrawText2Formatted) {
+ // QPainter has a reversed understanding of pen/stroke vs.
+ // brush/fill for text
+ s += QString::fromLatin1("fill:rgb(%1,%2,%3);").arg(pcol.red()).arg(pcol.green()).arg(pcol.blue());
+ s += QLatin1String("stroke-width:0;");
+ QFont f = cfont;
+ QFontInfo fi(f);
+ s += QString::fromLatin1("font-size:%1;").arg(fi.pointSize());
+ s += QString::fromLatin1("font-style:%1;").arg(f.italic() ? QLatin1String("italic") : QLatin1String("normal"));
+ // not a very scientific distribution
+ QString fw;
+ if (f.weight() <= QFont::Light)
+ fw = QLatin1String("100");
+ else if (f.weight() <= QFont::Normal)
+ fw = QLatin1String("400");
+ else if (f.weight() <= QFont::DemiBold)
+ fw = QLatin1String("600");
+ else if (f.weight() <= QFont::Bold)
+ fw = QLatin1String("700");
+ else if (f.weight() <= QFont::Black)
+ fw = QLatin1String("800");
+ else
+ fw = QLatin1String("900");
+ s += QString::fromLatin1("font-weight:%1;").arg(fw);
+ s += QString::fromLatin1("font-family:%1;").arg(f.family());
+ } else {
+ s += QString::fromLatin1("stroke:rgb(%1,%2,%3);").arg(pcol.red()).arg(pcol.green()).arg(pcol.blue());
+ if (pcol.alpha() != 255)
+ s += QString::fromLatin1("stroke-opacity:%1;").arg(pcol.alpha()/255.0);
+ if (bcol.alpha() != 255)
+ s += QString::fromLatin1("fill-opacity:%1;").arg(bcol.alpha()/255.0);
+ double pw = cpen.width();
+ if (pw == 0 && cpen.style() != Qt::NoPen)
+ pw = 0.9;
+ if (c == QPicturePrivate::PdcDrawLine)
+ pw /= (qAbs(worldMatrix.m11()) + qAbs(worldMatrix.m22())) / 2.0;
+ s += QString::fromLatin1("stroke-width:%1;").arg(pw);
+ if (cpen.style() == Qt::DashLine)
+ s+= QLatin1String("stroke-dasharray:18,6;");
+ else if (cpen.style() == Qt::DotLine)
+ s+= QLatin1String("stroke-dasharray:3;");
+ else if (cpen.style() == Qt::DashDotLine)
+ s+= QLatin1String("stroke-dasharray:9,6,3,6;");
+ else if (cpen.style() == Qt::DashDotDotLine)
+ s+= QLatin1String("stroke-dasharray:9,3,3;");
+ if (cbrush.style() == Qt::NoBrush || c == QPicturePrivate::PdcDrawPolyline || c == QPicturePrivate::PdcDrawCubicBezier)
+ s += QLatin1String("fill:none;"); // Qt polylines use no brush, neither do Beziers
+ else
+ s += QString::fromLatin1("fill:rgb(%1,%2,%3);").arg(bcol.red()).arg(bcol.green()).arg(bcol.blue());
+ }
+ e->setAttribute(QLatin1String("style"), s);
+}
+
+void Q3SVGPaintEnginePrivate::applyTransform(QDomElement *e) const
+{
+ QMatrix m = worldMatrix;
+
+ QString s;
+ bool rot = (m.m11() != 1.0 || m.m12() != 0.0 ||
+ m.m21() != 0.0 || m.m22() != 1.0);
+ if (!rot && (m.dx() != 0.0 || m.dy() != 0.0)) {
+ s = QString::fromLatin1("translate(%1,%2)").arg(m.dx()).arg(m.dy());
+ } else if (rot) {
+ if (m.m12() == 0.0 && m.m21() == 0.0 &&
+ m.dx() == 0.0 && m.dy() == 0.0)
+ s = QString::fromLatin1("scale(%1,%2)").arg(m.m11()).arg(m.m22());
+ else
+ s = QString::fromLatin1("matrix(%1,%2,%3,%4,%5,%6)")
+ .arg(m.m11()).arg(m.m12())
+ .arg(m.m21()).arg(m.m22())
+ .arg(m.dx()).arg(m.dy());
+ } else {
+ return;
+ }
+ e->setAttribute(QLatin1String("transform"), s);
+}
+
+bool Q3SVGPaintEngine::play(QPainter *pt)
+{
+ Q_D(Q3SVGPaintEngine);
+ if (!pt) {
+ Q_ASSERT(pt);
+ return false;
+ }
+ if (d->dev == 0)
+ d->dev = pt->device();
+ d->wwidth = pt->window().width();
+ d->wheight = pt->window().height();
+
+ pt->setPen(Qt::NoPen); // SVG default pen and brush
+ pt->setBrush(Qt::black);
+ if (d->doc.isNull()) {
+ qWarning("Q3SVGPaintEngine::play: No SVG data set.");
+ return false;
+ }
+
+ QDomNode svg = d->doc.namedItem(QLatin1String("svg"));
+ if (svg.isNull() || !svg.isElement()) {
+ qWarning("Q3SVGPaintEngine::play: Couldn't find any svg element.");
+ return false;
+ }
+
+ // force transform to be activated in case our sequences
+ // are replayed later with a transformed painter
+ pt->setWorldXForm(true);
+
+ QDomNamedNodeMap attr = svg.attributes();
+ int x = d->lenToInt(attr, QLatin1String("x"));
+ int y = d->lenToInt(attr, QLatin1String("y"));
+ d->brect.setX(x);
+ d->brect.setY(y);
+ QString wstr = attr.contains(QLatin1String("width"))
+ ? attr.namedItem(QLatin1String("width")).nodeValue() : QString::fromLatin1("100%");
+ QString hstr = attr.contains(QLatin1String("height"))
+ ? attr.namedItem(QLatin1String("height")).nodeValue() : QString::fromLatin1("100%");
+ double width = d->parseLen(wstr, 0, true);
+ double height = d->parseLen(hstr, 0, false);
+ // SVG doesn't respect x and y. But we want a proper bounding rect.
+ d->brect.setWidth(int(width) - x);
+ d->brect.setHeight(int(height) - y);
+ pt->setClipRect(d->brect);
+
+ if (attr.contains(QLatin1String("viewBox"))) {
+ QRegExp re(QString::fromLatin1("\\s*(\\S+)\\s*,?\\s*(\\S+)\\s*,?"),
+ "\\s*(\\S+)\\s*,?\\s*(\\S+)\\s*");
+ if (re.indexIn(attr.namedItem(QLatin1String("viewBox")).nodeValue()) < 0) {
+ qWarning("Q3SVGPaintEngine::play: Invalid viewBox attribute.");
+ return false;
+ } else {
+ double x = re.cap(1).toDouble();
+ double y = re.cap(2).toDouble();
+ double w = re.cap(3).toDouble();
+ double h = re.cap(4).toDouble();
+ if (w < 0 || h < 0) {
+ qWarning("Q3SVGPaintEngine::play: Invalid viewBox dimension.");
+ return false;
+ } else if (w == 0 || h == 0) {
+ return true;
+ }
+ pt->scale(width/w, height/h);
+ pt->translate(-x, -y);
+ }
+ }
+
+ const struct ElementTable {
+ const char *name;
+ ElementType type;
+ } etab[] = {
+ {"a", AnchorElement },
+ {"#comment", CommentElement },
+ {"circle", CircleElement },
+ {"clipPath", ClipElement },
+ {"desc", DescElement },
+ {"ellipse", EllipseElement },
+ {"g", GroupElement },
+ {"image", ImageElement },
+ {"line", LineElement },
+ {"polyline", PolylineElement},
+ {"polygon", PolygonElement },
+ {"path", PathElement },
+ {"rect", RectElement },
+ {"svg", SvgElement },
+ {"text", TextElement },
+ {"tspan", TSpanElement },
+ {"title", TitleElement },
+ {0, InvalidElement }
+ };
+ // initialize only once
+ if (!qSvgTypeMap) {
+ qSvgTypeMap = new QSvgTypeMap;
+ const ElementTable *t = etab;
+ while (t->name) {
+ qSvgTypeMap->insert(QLatin1String(t->name), t->type);
+ t++;
+ }
+ }
+
+ // initial state
+ Q3SVGPaintEngineState st;
+ st.textx = st.texty = 0;
+ st.textalign = Qt::AlignLeft;
+ d->stack.append(st);
+ d->curr = &d->stack.last();
+ // 'play' all elements recursively starting with 'svg' as root
+ bool b = d->play(svg, pt);
+ d->stack.removeFirst();
+ return b;
+}
+
+bool Q3SVGPaintEnginePrivate::play(const QDomNode &node, QPainter *pt)
+{
+ saveAttributes(pt);
+
+ ElementType t = (*qSvgTypeMap)[node.nodeName()];
+
+ if (t == LineElement && pt->pen().style() == Qt::NoPen) {
+ QPen p = pt->pen();
+ p.setStyle(Qt::SolidLine);
+ pt->setPen(p);
+ }
+ QDomNamedNodeMap attr = node.attributes();
+ if (attr.contains(QLatin1String("style")))
+ setStyle(attr.namedItem(QLatin1String("style")).nodeValue(), pt);
+ // ### might have to exclude more elements from transform
+ if (t != SvgElement && attr.contains(QLatin1String("transform")))
+ setTransform(attr.namedItem(QLatin1String("transform")).nodeValue(), pt);
+ uint i = attr.length();
+ if (i > 0) {
+ QPen pen = pt->pen();
+ QFont font = pt->font();
+ while (i--) {
+ QDomNode n = attr.item(i);
+ QString a = n.nodeName();
+ QString val = n.nodeValue().toLower().trimmed();
+ setStyleProperty(a, val, &pen, &font, &curr->textalign, pt);
+ }
+ pt->setPen(pen);
+ pt->setFont(font);
+ }
+
+ double x1, y1, x2, y2, rx, ry, w, h;
+ double cx1, cy1, crx, cry;
+ switch (t) {
+ case CommentElement:
+ // ignore
+ break;
+ case RectElement:
+ rx = ry = 0;
+ x1 = lenToDouble(attr, QLatin1String("x"));
+ y1 = lenToDouble(attr, QLatin1String("y"));
+ w = lenToDouble(attr, QLatin1String("width"));
+ h = lenToDouble(attr, QLatin1String("height"));
+ if (w == 0 || h == 0) // prevent div by zero below
+ break;
+ x2 = attr.contains(QLatin1String("rx")); // tiny abuse of x2 and y2
+ y2 = attr.contains(QLatin1String("ry"));
+ if (x2)
+ rx = lenToDouble(attr, QLatin1String("rx"));
+ if (y2)
+ ry = lenToDouble(attr, QLatin1String("ry"));
+ if (x2 && !y2)
+ ry = rx;
+ else if (!x2 && y2)
+ rx = ry;
+ rx = 200.0*rx / w;
+ ry = 200.0*ry / h;
+ pt->drawRoundRect(QRectF(x1, y1, w, h), int(rx), int(ry));
+ break;
+ case CircleElement:
+ cx1 = lenToDouble(attr, QLatin1String("cx")) + 0.5;
+ cy1 = lenToDouble(attr, QLatin1String("cy")) + 0.5;
+ crx = lenToDouble(attr, QLatin1String("r"));
+ pt->drawEllipse(QRectF(cx1-crx, cy1-crx, 2*crx, 2*crx));
+ break;
+ case EllipseElement:
+ cx1 = lenToDouble(attr, QLatin1String("cx")) + 0.5;
+ cy1 = lenToDouble(attr, QLatin1String("cy")) + 0.5;
+ crx = lenToDouble(attr, QLatin1String("rx"));
+ cry = lenToDouble(attr, QLatin1String("ry"));
+ pt->drawEllipse(QRectF(cx1-crx, cy1-cry, 2*crx, 2*cry));
+ break;
+ case LineElement:
+ {
+ x1 = lenToDouble(attr, QLatin1String("x1"));
+ x2 = lenToDouble(attr, QLatin1String("x2"));
+ y1 = lenToDouble(attr, QLatin1String("y1"));
+ y2 = lenToDouble(attr, QLatin1String("y2"));
+ QPen p = pt->pen();
+ w = p.width();
+ p.setWidth((unsigned int)(w * (qAbs(pt->worldMatrix().m11()) + qAbs(pt->worldMatrix().m22())) / 2));
+ pt->setPen(p);
+ pt->drawLine(QLineF(x1, y1, x2, y2));
+ p.setWidthF(w);
+ pt->setPen(p);
+ }
+ break;
+ case PolylineElement:
+ case PolygonElement:
+ {
+ QString pts = attr.namedItem(QLatin1String("points")).nodeValue();
+ pts = pts.simplified();
+ QStringList sl = pts.split(QRegExp(QString::fromLatin1("[,\\s]")),
+ QString::SkipEmptyParts);
+ QPolygonF ptarr((uint) sl.count() / 2);
+ for (int i = 0; i < (int) sl.count() / 2; i++) {
+ double dx = sl[2*i].toDouble();
+ double dy = sl[2*i+1].toDouble();
+ ptarr[i] = QPointF(dx, dy);
+ }
+ if (t == PolylineElement) {
+ if (pt->brush().style() != Qt::NoBrush) {
+ QPen pn = pt->pen();
+ pt->setPen(Qt::NoPen);
+ pt->drawPolygon(ptarr);
+ pt->setPen(pn);
+ }
+ pt->drawPolyline(ptarr); // ### closes when filled. bug ?
+ } else {
+ pt->drawPolygon(ptarr);
+ }
+ }
+ break;
+ case SvgElement:
+ case GroupElement:
+ case AnchorElement:
+ {
+ QDomNode child = node.firstChild();
+ while (!child.isNull()) {
+ play(child, pt);
+ child = child.nextSibling();
+ }
+ }
+ break;
+ case PathElement:
+ drawPath(attr.namedItem(QLatin1String("d")).nodeValue(), pt);
+ break;
+ case TSpanElement:
+ case TextElement:
+ {
+ if (attr.contains(QLatin1String("x")))
+ curr->textx = lenToDouble(attr, QLatin1String("x"));
+ if (attr.contains(QLatin1String("y")))
+ curr->texty = lenToDouble(attr, QLatin1String("y"));
+ if (t == TSpanElement) {
+ curr->textx += lenToDouble(attr, QLatin1String("dx"));
+ curr->texty += lenToDouble(attr, QLatin1String("dy"));
+ }
+ // backup old colors
+ QPen pn = pt->pen();
+ QColor pcolor = pn.color();
+ QColor bcolor = pt->brush().color();
+ QDomNode c = node.firstChild();
+ while (!c.isNull()) {
+ if (c.isText()) {
+ // we have pen and brush reversed for text drawing
+ pn.setColor(bcolor);
+ pt->setPen(pn);
+ QString text = c.toText().nodeValue();
+ text = text.simplified(); // ### 'preserve'
+ w = pt->fontMetrics().width(text);
+ if (curr->textalign == Qt::AlignHCenter)
+ curr->textx -= w / 2;
+ else if (curr->textalign == Qt::AlignRight)
+ curr->textx -= w;
+ pt->drawText(QPointF(curr->textx, curr->texty), text);
+ // restore pen
+ pn.setColor(pcolor);
+ pt->setPen(pn);
+ curr->textx += w;
+ } else if (c.isElement() && c.toElement().tagName() == QLatin1String("tspan")) {
+ play(c, pt);
+
+ }
+ c = c.nextSibling();
+ }
+ if (t == TSpanElement) {
+ // move current text position in parent text element
+ StateList::Iterator it = --(--stack.end());
+ (*it).textx = curr->textx;
+ (*it).texty = curr->texty;
+ }
+ }
+ break;
+ case ImageElement:
+ {
+ x1 = lenToDouble(attr, QLatin1String("x"));
+ y1 = lenToDouble(attr, QLatin1String("y"));
+ w = lenToDouble(attr, QLatin1String("width"));
+ h = lenToDouble(attr, QLatin1String("height"));
+ QString href = attr.namedItem(QLatin1String("xlink:href")).nodeValue();
+ // ### catch references to embedded .svg files
+ QPixmap pix;
+ if (!pix.load(href)){
+ qWarning("Q3SVGPaintEngine::play: Couldn't load image %s",href.latin1());
+ break;
+ }
+ pt->drawPixmap(QRectF(x1, y1, w, h), pix, QRectF());
+ }
+ break;
+ case DescElement:
+ case TitleElement:
+ // ignored for now
+ break;
+ case ClipElement:
+ {
+ restoreAttributes(pt); // To ensure the clip rect is saved, we need to restore now
+ QDomNode child = node.firstChild();
+ QDomNamedNodeMap childAttr = child.attributes();
+ if (child.nodeName() == QLatin1String("rect")) {
+ QRect r;
+ r.setX(lenToInt(childAttr, QLatin1String("x")));
+ r.setY(lenToInt(childAttr, QLatin1String("y")));
+ r.setWidth(lenToInt(childAttr, QLatin1String("width")));
+ r.setHeight(lenToInt(childAttr, QLatin1String("height")));
+ pt->setClipRect(r);
+ } else if (child.nodeName() == QLatin1String("ellipse")) {
+ QRect r;
+ int x = lenToInt(childAttr, QLatin1String("cx"));
+ int y = lenToInt(childAttr, QLatin1String("cy"));
+ int width = lenToInt(childAttr, QLatin1String("rx"));
+ int height = lenToInt(childAttr, QLatin1String("ry"));
+ r.setX(x - width);
+ r.setY(y - height);
+ r.setWidth(width * 2);
+ r.setHeight(height * 2);
+ QRegion rgn(r, QRegion::Ellipse);
+ pt->setClipRegion(rgn);
+ }
+ break;
+ }
+ case InvalidElement:
+ qWarning("Q3SVGPaintEngine::play: unknown element type %s", node.nodeName().latin1());
+ break;
+ }
+
+ if (t != ClipElement)
+ restoreAttributes(pt);
+
+ return true;
+}
+
+/*!
+ \internal
+
+ Parse a <length> datatype consisting of a number followed by an
+ optional unit specifier. Can be used for type <coordinate> as
+ well. For relative units the value of \a horiz will determine
+ whether the horizontal or vertical dimension will be used.
+*/
+double Q3SVGPaintEnginePrivate::parseLen(const QString &str, bool *ok, bool horiz) const
+{
+ QRegExp reg(QString::fromLatin1("([+-]?\\d*\\.*\\d*[Ee]?[+-]?\\d*)(em|ex|px|%|pt|pc|cm|mm|in|)$"));
+ if (reg.indexIn(str) == -1) {
+ qWarning("Q3SVGPaintEngine::parseLen: couldn't parse %s", str.latin1());
+ if (ok)
+ *ok = false;
+ return 0.0;
+ }
+
+ double dbl = reg.cap(1).toDouble();
+ QString u = reg.cap(2);
+ if (!u.isEmpty() && u != QLatin1String("px")) {
+ if (u == QLatin1String("em")) {
+ QFontInfo fi(cfont);
+ dbl *= fi.pixelSize();
+ } else if (u == QLatin1String("ex")) {
+ QFontInfo fi(cfont);
+ dbl *= 0.5 * fi.pixelSize();
+ } else if (u == QLatin1String("%"))
+ dbl *= (horiz ? wwidth : wheight)/100.0;
+ else if (u == QLatin1String("cm"))
+ dbl *= dev->logicalDpiX() / 2.54;
+ else if (u == QLatin1String("mm"))
+ dbl *= dev->logicalDpiX() / 25.4;
+ else if (u == QLatin1String("in"))
+ dbl *= dev->logicalDpiX();
+ else if (u == QLatin1String("pt"))
+ dbl *= dev->logicalDpiX() / 72.0;
+ else if (u == QLatin1String("pc"))
+ dbl *= dev->logicalDpiX() / 6.0;
+ else
+ qWarning("Q3SVGPaintEngine::parseLen: Unknown unit %s", u.latin1());
+ }
+ if (ok)
+ *ok = true;
+ return dbl;
+}
+
+/*!
+ \internal
+
+ Returns the length specified in attribute \a attr in \a map. If
+ the specified attribute doesn't exist or can't be parsed \a def is
+ returned.
+*/
+
+int Q3SVGPaintEnginePrivate::lenToInt(const QDomNamedNodeMap &map, const QString &attr, int def) const
+{
+ if (map.contains(attr)) {
+ bool ok;
+ double dbl = parseLen(map.namedItem(attr).nodeValue(), &ok);
+ if (ok)
+ return qRound(dbl);
+ }
+ return def;
+}
+
+double Q3SVGPaintEnginePrivate::lenToDouble(const QDomNamedNodeMap &map, const QString &attr,
+ int def) const
+{
+ if (map.contains(attr)) {
+ bool ok;
+ double x = parseLen(map.namedItem(attr).nodeValue(), &ok);
+ if (ok) return x;
+ }
+ return static_cast<double>(def);
+}
+
+void Q3SVGPaintEnginePrivate::setTransform(const QString &tr, QPainter *pt)
+{
+ QString t = tr.simplified();
+
+ QRegExp reg(QString::fromLatin1("\\s*([\\w]+)\\s*\\(([^\\(]*)\\)"));
+ int index = 0;
+ while ((index = reg.indexIn(t, index)) >= 0) {
+ QString command = reg.cap(1);
+ QString params = reg.cap(2);
+ QStringList plist = params.split(QRegExp(QString::fromLatin1("[,\\s]")),
+ QString::SkipEmptyParts);
+ if (command == QLatin1String("translate")) {
+ double tx = 0, ty = 0;
+ tx = plist[0].toDouble();
+ if (plist.count() >= 2)
+ ty = plist[1].toDouble();
+ pt->translate(tx, ty);
+ } else if (command == QLatin1String("rotate")) {
+ pt->rotate(plist[0].toDouble());
+ } else if (command == QLatin1String("scale")) {
+ double sx, sy;
+ sx = sy = plist[0].toDouble();
+ if (plist.count() >= 2)
+ sy = plist[1].toDouble();
+ pt->scale(sx, sy);
+ } else if (command == QLatin1String("matrix") && plist.count() >= 6) {
+ double m[6];
+ for (int i = 0; i < 6; i++)
+ m[i] = plist[i].toDouble();
+ QMatrix wm(m[0], m[1], m[2], m[3], m[4], m[5]);
+ pt->setWorldMatrix(wm, true);
+ } else if (command == QLatin1String("skewX")) {
+ pt->shear(0.0, tan(plist[0].toDouble() * deg2rad));
+ } else if (command == QLatin1String("skewY")) {
+ pt->shear(tan(plist[0].toDouble() * deg2rad), 0.0);
+ }
+
+ // move on to next command
+ index += reg.matchedLength();
+ }
+}
+/*!
+ \internal
+
+ Push the current drawing attributes on a stack.
+
+ \sa restoreAttributes()
+*/
+
+void Q3SVGPaintEnginePrivate::saveAttributes(QPainter *pt)
+{
+ pt->save();
+ // copy old state
+ Q3SVGPaintEngineState st(*curr);
+ stack.append(st);
+ curr = &stack.last();
+}
+
+/*!
+ \internal
+
+ Pop the current drawing attributes off the stack.
+
+ \sa saveAttributes()
+*/
+
+void Q3SVGPaintEnginePrivate::restoreAttributes(QPainter *pt)
+{
+ pt->restore();
+ Q_ASSERT(stack.count() > 1);
+ stack.removeLast();
+ curr = &stack.last();
+}
+
+void Q3SVGPaintEnginePrivate::setStyle(const QString &s, QPainter *pt)
+{
+ QStringList rules = s.split(QLatin1Char(';'), QString::SkipEmptyParts);
+
+ QPen pen = pt->pen();
+ QFont font = pt->font();
+
+ QStringList::ConstIterator it = rules.constBegin();
+ for (; it != rules.constEnd(); it++) {
+ int col = (*it).indexOf(QLatin1Char(':'));
+ if (col > 0) {
+ QString prop = (*it).left(col).simplified();
+ QString val = (*it).right((*it).length() - col - 1);
+ val = val.toLower().trimmed();
+ setStyleProperty(prop, val, &pen, &font, &curr->textalign, pt);
+ }
+ }
+ pt->setPen(pen);
+ pt->setFont(font);
+}
+
+void Q3SVGPaintEnginePrivate::setStyleProperty(const QString &prop, const QString &val, QPen *pen,
+ QFont *font, int *talign, QPainter *pt)
+{
+ if (prop == QLatin1String("stroke")) {
+ if (val == QLatin1String("none")) {
+ pen->setStyle(Qt::NoPen);
+ } else {
+ pen->setColor(parseColor(val));
+ if (pen->style() == Qt::NoPen)
+ pen->setStyle(Qt::SolidLine);
+ if (pen->width() == 0)
+ pen->setWidth(1);
+ }
+ } else if (prop == QLatin1String("stroke-opacity")) {
+ double opacity = parseLen(val);
+ QColor c = pen->color();
+ c.setAlpha((int)(opacity*255));
+ pen->setColor(c);
+ } else if (prop == QLatin1String("fill-opacity")) {
+ double opacity = parseLen(val);
+ QColor c = pt->brush().color();
+ c.setAlpha((int)(opacity*255));
+ pt->setBrush(c);
+ } else if (prop == QLatin1String("stroke-width")) {
+ double w = parseLen(val);
+ if (w > 0.0001)
+ pen->setWidth(int(w));
+ else
+ pen->setStyle(Qt::NoPen);
+ } else if (prop == QLatin1String("stroke-linecap")) {
+ if (val == QLatin1String("butt"))
+ pen->setCapStyle(Qt::FlatCap);
+ else if (val == QLatin1String("round"))
+ pen->setCapStyle(Qt::RoundCap);
+ else if (val == QLatin1String("square"))
+ pen->setCapStyle(Qt::SquareCap);
+ } else if (prop == QLatin1String("stroke-linejoin")) {
+ if (val == QLatin1String("miter"))
+ pen->setJoinStyle(Qt::MiterJoin);
+ else if (val == QLatin1String("round"))
+ pen->setJoinStyle(Qt::RoundJoin);
+ else if (val == QLatin1String("bevel"))
+ pen->setJoinStyle(Qt::BevelJoin);
+ } else if (prop == QLatin1String("stroke-dasharray")) {
+ if (val == QLatin1String("18,6"))
+ pen->setStyle(Qt::DashLine);
+ else if (val == QLatin1String("3"))
+ pen->setStyle(Qt::DotLine);
+ else if (val == QLatin1String("9,6,3,6"))
+ pen->setStyle(Qt::DashDotLine);
+ else if (val == QLatin1String("9,3,3"))
+ pen->setStyle(Qt::DashDotDotLine);
+ } else if (prop == QLatin1String("fill")) {
+ if (val == QLatin1String("none"))
+ pt->setBrush(Qt::NoBrush);
+ else
+ pt->setBrush(parseColor(val));
+ } else if (prop == QLatin1String("font-size")) {
+ font->setPixelSize(qRound(parseLen(val)));
+ } else if (prop == QLatin1String("font-family")) {
+ font->setFamily(val);
+ } else if (prop == QLatin1String("font-style")) {
+ if (val == QLatin1String("normal"))
+ font->setItalic(false);
+ else if (val == QLatin1String("italic"))
+ font->setItalic(true);
+ else
+ qWarning("QSvgDevice::setStyleProperty: unhandled font-style: %s", val.latin1());
+ } else if (prop == QLatin1String("font-weight")) {
+ int w = font->weight();
+ // no exact equivalents so we have to QLatin1String("round") a little bit
+ if (val == QLatin1String("100") || val == QLatin1String("200"))
+ w = QFont::Light;
+ if (val == QLatin1String("300") || val == QLatin1String("400") || val == QLatin1String("normal"))
+ w = QFont::Normal;
+ else if (val == QLatin1String("500") || val == QLatin1String("600"))
+ w = QFont::DemiBold;
+ else if (val == QLatin1String("700") || val == QLatin1String("bold") || val == QLatin1String("800"))
+ w = QFont::Bold;
+ else if (val == QLatin1String("900"))
+ w = QFont::Black;
+ font->setWeight(w);
+ } else if (prop == QLatin1String("text-anchor")) {
+ if (val == QLatin1String("middle"))
+ *talign = Qt::AlignHCenter;
+ else if (val == QLatin1String("end"))
+ *talign = Qt::AlignRight;
+ else
+ *talign = Qt::AlignLeft;
+ }
+}
+
+void Q3SVGPaintEnginePrivate::drawPath(const QString &data, QPainter *pt)
+{
+ double x0 = 0, y0 = 0; // starting point
+ double x = 0, y = 0; // current point
+ QPointF ctrlPt;
+ QPainterPath path; // resulting path
+ int idx = 0; // current data position
+ int mode = 0, lastMode = 0; // parser state
+ bool relative = false; // e.g. 'h' vs. 'H'
+ QString commands(QLatin1String("MZLHVCSQTA")); // recognized commands
+ int cmdArgs[] = { 2, 0, 2, 1, 1, 6, 4, 4, 2, 7 }; // no of arguments
+ QRegExp reg(QString::fromLatin1("\\s*,?\\s*([+-]?\\d*\\.?\\d*)")); // floating point
+
+ // detect next command
+ while (idx < data.length()) {
+ QChar ch = data[(int)idx++];
+ if (ch.isSpace())
+ continue;
+ QChar chUp = ch.toUpper();
+ int cmd = commands.indexOf(chUp);
+ if (cmd >= 0) {
+ // switch to new command mode
+ mode = cmd;
+ relative = (ch != chUp); // e.g. 'm' instead of 'M'
+ } else {
+ if (mode && !ch.isLetter()) {
+ cmd = mode; // continue in previous mode
+ idx--;
+ } else {
+ qWarning("Q3SVGPaintEngine::drawPath: Unknown command");
+ return;
+ }
+ }
+
+ // read in the required number of arguments
+ const int maxArgs = 7;
+ double arg[maxArgs];
+ int numArgs = cmdArgs[cmd];
+ for (int i = 0; i < numArgs; i++) {
+ int pos = reg.indexIn(data, idx);
+ if (pos == -1) {
+ qWarning("Q3SVGPaintEngine::drawPath: Error parsing arguments");
+ return;
+ }
+ arg[i] = reg.cap(1).toDouble();
+ idx = pos + reg.matchedLength();
+ };
+
+ // process command
+ double offsetX = relative ? x : 0; // correction offsets
+ double offsetY = relative ? y : 0; // for relative commands
+ switch (mode) {
+ case 0: // 'M' move to
+ x = x0 = arg[0] + offsetX;
+ y = y0 = arg[1] + offsetY;
+ path.moveTo(x0, y0);
+ mode = 2; // -> 'L'
+ break;
+ case 1: // 'Z' close path
+ x = x0;
+ y = y0;
+ path.closeSubpath();
+ mode = 0;
+ break;
+ case 2: // 'L' line to
+ x = arg[0] + offsetX;
+ y = arg[1] + offsetY;
+ path.lineTo(x, y);
+ break;
+ case 3: // 'H' horizontal line
+ x = arg[0] + offsetX;
+ path.lineTo(x, y);
+ break;
+ case 4: // 'V' vertical line
+ y = arg[0] + offsetY;
+ path.lineTo(x, y);
+ break;
+ case 5: { // 'C' cubic bezier curveto
+ QPointF c1(arg[0]+offsetX, arg[1]+offsetY);
+ QPointF c2(arg[2]+offsetX, arg[3]+offsetY);
+ QPointF e(arg[4]+offsetX, arg[5]+offsetY);
+ path.cubicTo(c1, c2, e);
+ ctrlPt = c2;
+ x = e.x();
+ y = e.y();
+ break;
+ }
+ case 6: { // 'S' smooth shorthand
+ QPointF c1;
+ if (lastMode == 5 || lastMode == 6)
+ c1 = QPointF(2*x-ctrlPt.x(), 2*y-ctrlPt.y());
+ else
+ c1 = QPointF(x, y);
+ QPointF c2(arg[0]+offsetX, arg[1]+offsetY);
+ QPointF e(arg[2]+offsetX, arg[3]+offsetY);
+ path.cubicTo(c1, c2, e);
+ ctrlPt = c2;
+ x = e.x();
+ y = e.y();
+ break;
+ }
+ case 7: { // 'Q' quadratic bezier curves
+ QPointF c(arg[0]+offsetX, arg[1]+offsetY);
+ QPointF e(arg[2]+offsetX, arg[3]+offsetY);
+ path.quadTo(c, e);
+ ctrlPt = c;
+ x = e.x();
+ y = e.y();
+ break;
+ }
+ case 8: { // 'T' smooth shorthand
+ QPointF e(arg[0]+offsetX, arg[1]+offsetY);
+ QPointF c;
+ if (lastMode == 7 || lastMode == 8)
+ c = QPointF(2*x-ctrlPt.x(), 2*y-ctrlPt.y());
+ else
+ c = QPointF(x, y);
+ path.quadTo(c, e);
+ ctrlPt = c;
+ x = e.x();
+ y = e.y();
+ break;
+ }
+ case 9: // 'A' elliptical arc curve
+ // ### just a straight line
+ x = arg[5] + offsetX;
+ y = arg[6] + offsetY;
+ path.lineTo(x, y);
+ break;
+ };
+ lastMode = mode;
+ }
+ pt->drawPath(path);
+}
+
+/*!
+ \internal
+
+ Parses a CSS2-compatible color specification. Either a keyword or
+ a numerical RGB specification like #ff00ff or rgb(255,0,50%).
+*/
+
+QColor Q3SVGPaintEnginePrivate::parseColor(const QString &col)
+{
+ static const struct ColorTable {
+ const char *name;
+ const char *rgb;
+ } coltab[] = {
+ { "black", "#000000" },
+ { "silver", "#c0c0c0" },
+ { "gray", "#808080" },
+ { "white", "#ffffff" },
+ { "maroon", "#800000" },
+ { "red", "#ff0000" },
+ { "purple", "#800080" },
+ { "fuchsia", "#ff00ff" },
+ { "green", "#008000" },
+ { "lime", "#00ff00" },
+ { "olive", "#808000" },
+ { "yellow", "#ffff00" },
+ { "navy", "#000080" },
+ { "blue", "#0000ff" },
+ { "teal", "#008080" },
+ { "aqua", "#00ffff" },
+ // ### the latest spec has more
+ { 0, 0 }
+ };
+
+ // initialize color map on first use
+ if (!qSvgColMap) {
+ qSvgColMap = new QMap<QString,QString>;
+ const struct ColorTable *t = coltab;
+ while (t->name) {
+ qSvgColMap->insert(QLatin1String(t->name), QLatin1String(t->rgb));
+ ++t;
+ }
+ }
+
+ // a keyword?
+ if (qSvgColMap->contains(col))
+ return QColor((*qSvgColMap)[col]);
+ // in rgb(r,g,b) form ?
+ QString c = col;
+ c.replace(QRegExp(QString::fromLatin1("\\s*")), QLatin1String(""));
+ QRegExp reg(QString::fromLatin1("^rgb\\((\\d+)(%?),(\\d+)(%?),(\\d+)(%?)\\)$"));
+ if (reg.indexIn(c) >= 0) {
+ int comp[3];
+ for (int i = 0; i < 3; i++) {
+ comp[i] = reg.cap(2*i+1).toInt();
+ if (!reg.cap(2*i+2).isEmpty()) // percentage ?
+ comp[i] = int((double(255*comp[i])/100.0));
+ }
+ return QColor(comp[0], comp[1], comp[2]);
+ }
+
+ // check for predefined Qt color objects, #RRGGBB and #RGB
+ return QColor(col);
+}
+
+static QString qt_svg_compose_path(const QPainterPath &path)
+{
+ QString str, tmp;
+ for (int i = 0; i < path.elementCount(); ++i) {
+ const QPainterPath::Element &elm = path.elementAt(i);
+ switch (elm.type) {
+ case QPainterPath::LineToElement:
+ tmp.sprintf("L %f %f ", elm.x, elm.y);
+ str += tmp;
+ break;
+ case QPainterPath::MoveToElement:
+ tmp.sprintf("M %f %f ", elm.x, elm.y);
+ str += tmp;
+ break;
+ case QPainterPath::CurveToElement:
+ {
+ Q_ASSERT(path.elementCount() > i+2);
+ const QPainterPath::Element cd1 = path.elementAt(i+1);
+ const QPainterPath::Element cd2 = path.elementAt(i+2);
+ Q_ASSERT(cd1.type == QPainterPath::CurveToDataElement
+ && cd2.type == QPainterPath::CurveToDataElement);
+ tmp.sprintf("C %f %f %f %f %f %f ", elm.x, elm.y, cd1.x, cd1.y, cd2.x, cd2.y);
+ str += tmp;
+ i += 2;
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ return str;
+}
+
+QT_END_NAMESPACE