Google Git
Sign in
android / platform / external / qt / 7bfefd596b628604816a01c904428ab99099b10d / . / Windows-4.7.4 / src / svg / qsvghandler.cpp
blob: 5796791dbbbcad667f5c0a534aea1fd78bd8d215 [file] [log] [blame]
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtSvg module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qplatformdefs.h"
#include "qsvghandler_p.h"
#ifndef QT_NO_SVG
#include "qsvgtinydocument_p.h"
#include "qsvgstructure_p.h"
#include "qsvggraphics_p.h"
#include "qsvgnode_p.h"
#include "qsvgfont_p.h"
#include "qapplication.h"
#include "qwidget.h"
#include "qpen.h"
#include "qpainterpath.h"
#include "qbrush.h"
#include "qcolor.h"
#include "qtextformat.h"
#include "qvector.h"
#include "qfileinfo.h"
#include "qfile.h"
#include "qdebug.h"
#include "qmath.h"
#include "qnumeric.h"
#include "qvarlengtharray.h"
#include "private/qmath_p.h"
#include "float.h"
QT_BEGIN_NAMESPACE
static const char *qt_inherit_text = "inherit";
#define QT_INHERIT QLatin1String(qt_inherit_text)
Q_CORE_EXPORT double qstrtod(const char *s00, char const **se, bool *ok);
// ======== duplicated from qcolor_p
static inline int qsvg_h2i(char hex)
{
if (hex >= '0' && hex <= '9')
return hex - '0';
if (hex >= 'a' && hex <= 'f')
return hex - 'a' + 10;
if (hex >= 'A' && hex <= 'F')
return hex - 'A' + 10;
return -1;
}
static inline int qsvg_hex2int(const char *s)
{
return (qsvg_h2i(s[0]) << 4) | qsvg_h2i(s[1]);
}
static inline int qsvg_hex2int(char s)
{
int h = qsvg_h2i(s);
return (h << 4) | h;
}
bool qsvg_get_hex_rgb(const char *name, QRgb *rgb)
{
if(name[0] != '#')
return false;
name++;
int len = qstrlen(name);
int r, g, b;
if (len == 12) {
r = qsvg_hex2int(name);
g = qsvg_hex2int(name + 4);
b = qsvg_hex2int(name + 8);
} else if (len == 9) {
r = qsvg_hex2int(name);
g = qsvg_hex2int(name + 3);
b = qsvg_hex2int(name + 6);
} else if (len == 6) {
r = qsvg_hex2int(name);
g = qsvg_hex2int(name + 2);
b = qsvg_hex2int(name + 4);
} else if (len == 3) {
r = qsvg_hex2int(name[0]);
g = qsvg_hex2int(name[1]);
b = qsvg_hex2int(name[2]);
} else {
r = g = b = -1;
}
if ((uint)r > 255 || (uint)g > 255 || (uint)b > 255) {
*rgb = 0;
return false;
}
*rgb = qRgb(r, g ,b);
return true;
}
bool qsvg_get_hex_rgb(const QChar *str, int len, QRgb *rgb)
{
if (len > 13)
return false;
char tmp[16];
for(int i = 0; i < len; ++i)
tmp[i] = str[i].toLatin1();
tmp[len] = 0;
return qsvg_get_hex_rgb(tmp, rgb);
}
// ======== end of qcolor_p duplicate
static bool parsePathDataFast(const QStringRef &data, QPainterPath &path);
static inline QString someId(const QXmlStreamAttributes &attributes)
{
QString id = attributes.value(QLatin1String("id")).toString();
if (id.isEmpty())
id = attributes.value(QLatin1String("xml:id")).toString();
return id;
}
struct QSvgAttributes
{
QSvgAttributes(const QXmlStreamAttributes &xmlAttributes, QSvgHandler *handler);
QString id;
QStringRef color;
QStringRef colorOpacity;
QStringRef fill;
QStringRef fillRule;
QStringRef fillOpacity;
QStringRef stroke;
QStringRef strokeDashArray;
QStringRef strokeDashOffset;
QStringRef strokeLineCap;
QStringRef strokeLineJoin;
QStringRef strokeMiterLimit;
QStringRef strokeOpacity;
QStringRef strokeWidth;
QStringRef vectorEffect;
QStringRef fontFamily;
QStringRef fontSize;
QStringRef fontStyle;
QStringRef fontWeight;
QStringRef fontVariant;
QStringRef textAnchor;
QStringRef transform;
QStringRef visibility;
QStringRef opacity;
QStringRef compOp;
QStringRef display;
QStringRef offset;
QStringRef stopColor;
QStringRef stopOpacity;
QVector<QSvgCssAttribute> m_cssAttributes;
};
QSvgAttributes::QSvgAttributes(const QXmlStreamAttributes &xmlAttributes, QSvgHandler *handler)
{
QStringRef style = xmlAttributes.value(QLatin1String("style"));
if (!style.isEmpty()) {
handler->parseCSStoXMLAttrs(style.toString(), &m_cssAttributes);
for (int j = 0; j < m_cssAttributes.count(); ++j) {
const QSvgCssAttribute &attribute = m_cssAttributes.at(j);
QStringRef name = attribute.name;
QStringRef value = attribute.value;
if (name.isEmpty())
continue;
switch (name.at(0).unicode()) {
case 'c':
if (name == QLatin1String("color"))
color = value;
else if (name == QLatin1String("color-opacity"))
colorOpacity = value;
else if (name == QLatin1String("comp-op"))
compOp = value;
break;
case 'd':
if (name == QLatin1String("display"))
display = value;
break;
case 'f':
if (name == QLatin1String("fill"))
fill = value;
else if (name == QLatin1String("fill-rule"))
fillRule = value;
else if (name == QLatin1String("fill-opacity"))
fillOpacity = value;
else if (name == QLatin1String("font-family"))
fontFamily = value;
else if (name == QLatin1String("font-size"))
fontSize = value;
else if (name == QLatin1String("font-style"))
fontStyle = value;
else if (name == QLatin1String("font-weight"))
fontWeight = value;
else if (name == QLatin1String("font-variant"))
fontVariant = value;
break;
case 'o':
if (name == QLatin1String("opacity"))
opacity = value;
else if (name == QLatin1String("offset"))
offset = value;
break;
case 's':
if (name.length() > 5 && QStringRef(name.string(), name.position() + 1, 5) == QLatin1String("troke")) {
QStringRef strokeRef(name.string(), name.position() + 6, name.length() - 6);
if (strokeRef.isEmpty())
stroke = value;
else if (strokeRef == QLatin1String("-dasharray"))
strokeDashArray = value;
else if (strokeRef == QLatin1String("-dashoffset"))
strokeDashOffset = value;
else if (strokeRef == QLatin1String("-linecap"))
strokeLineCap = value;
else if (strokeRef == QLatin1String("-linejoin"))
strokeLineJoin = value;
else if (strokeRef == QLatin1String("-miterlimit"))
strokeMiterLimit = value;
else if (strokeRef == QLatin1String("-opacity"))
strokeOpacity = value;
else if (strokeRef == QLatin1String("-width"))
strokeWidth = value;
}
else if (name == QLatin1String("stop-color"))
stopColor = value;
else if (name == QLatin1String("stop-opacity"))
stopOpacity = value;
break;
case 't':
if (name == QLatin1String("text-anchor"))
textAnchor = value;
else if (name == QLatin1String("transform"))
transform = value;
break;
case 'v':
if (name == QLatin1String("vector-effect"))
vectorEffect = value;
else if (name == QLatin1String("visibility"))
visibility = value;
break;
default:
break;
}
}
}
for (int i = 0; i < xmlAttributes.count(); ++i) {
const QXmlStreamAttribute &attribute = xmlAttributes.at(i);
QStringRef name = attribute.qualifiedName();
if (name.isEmpty())
continue;
QStringRef value = attribute.value();
switch (name.at(0).unicode()) {
case 'c':
if (name == QLatin1String("color"))
color = value;
else if (name == QLatin1String("color-opacity"))
colorOpacity = value;
else if (name == QLatin1String("comp-op"))
compOp = value;
break;
case 'd':
if (name == QLatin1String("display"))
display = value;
break;
case 'f':
if (name == QLatin1String("fill"))
fill = value;
else if (name == QLatin1String("fill-rule"))
fillRule = value;
else if (name == QLatin1String("fill-opacity"))
fillOpacity = value;
else if (name == QLatin1String("font-family"))
fontFamily = value;
else if (name == QLatin1String("font-size"))
fontSize = value;
else if (name == QLatin1String("font-style"))
fontStyle = value;
else if (name == QLatin1String("font-weight"))
fontWeight = value;
else if (name == QLatin1String("font-variant"))
fontVariant = value;
break;
case 'i':
if (name == QLatin1String("id"))
id = value.toString();
break;
case 'o':
if (name == QLatin1String("opacity"))
opacity = value;
if (name == QLatin1String("offset"))
offset = value;
break;
case 's':
if (name.length() > 5 && QStringRef(name.string(), name.position() + 1, 5) == QLatin1String("troke")) {
QStringRef strokeRef(name.string(), name.position() + 6, name.length() - 6);
if (strokeRef.isEmpty())
stroke = value;
else if (strokeRef == QLatin1String("-dasharray"))
strokeDashArray = value;
else if (strokeRef == QLatin1String("-dashoffset"))
strokeDashOffset = value;
else if (strokeRef == QLatin1String("-linecap"))
strokeLineCap = value;
else if (strokeRef == QLatin1String("-linejoin"))
strokeLineJoin = value;
else if (strokeRef == QLatin1String("-miterlimit"))
strokeMiterLimit = value;
else if (strokeRef == QLatin1String("-opacity"))
strokeOpacity = value;
else if (strokeRef == QLatin1String("-width"))
strokeWidth = value;
}
else if (name == QLatin1String("stop-color"))
stopColor = value;
else if (name == QLatin1String("stop-opacity"))
stopOpacity = value;
break;
case 't':
if (name == QLatin1String("text-anchor"))
textAnchor = value;
else if (name == QLatin1String("transform"))
transform = value;
break;
case 'v':
if (name == QLatin1String("vector-effect"))
vectorEffect = value;
else if (name == QLatin1String("visibility"))
visibility = value;
break;
case 'x':
if (name == QLatin1String("xml:id") && id.isEmpty())
id = value.toString();
break;
default:
break;
}
}
}
static const char * QSvgStyleSelector_nodeString[] = {
"svg",
"g",
"defs",
"switch",
"animation",
"arc",
"circle",
"ellipse",
"image",
"line",
"path",
"polygon",
"polyline",
"rect",
"text",
"textarea",
"use",
"video"
};
class QSvgStyleSelector : public QCss::StyleSelector
{
public:
QSvgStyleSelector()
{
nameCaseSensitivity = Qt::CaseInsensitive;
}
virtual ~QSvgStyleSelector()
{
}
inline QString nodeToName(QSvgNode *node) const
{
return QLatin1String(QSvgStyleSelector_nodeString[node->type()]);
}
inline QSvgNode *svgNode(NodePtr node) const
{
return (QSvgNode*)node.ptr;
}
inline QSvgStructureNode *nodeToStructure(QSvgNode *n) const
{
if (n &&
(n->type() == QSvgNode::DOC ||
n->type() == QSvgNode::G ||
n->type() == QSvgNode::DEFS ||
n->type() == QSvgNode::SWITCH)) {
return (QSvgStructureNode*)n;
}
return 0;
}
inline QSvgStructureNode *svgStructure(NodePtr node) const
{
QSvgNode *n = svgNode(node);
QSvgStructureNode *st = nodeToStructure(n);
return st;
}
virtual bool nodeNameEquals(NodePtr node, const QString& nodeName) const
{
QSvgNode *n = svgNode(node);
if (!n)
return false;
QString name = nodeToName(n);
return QString::compare(name, nodeName, Qt::CaseInsensitive) == 0;
}
virtual QString attribute(NodePtr node, const QString &name) const
{
QSvgNode *n = svgNode(node);
if ((!n->nodeId().isEmpty() && (name == QLatin1String("id") ||
name == QLatin1String("xml:id"))))
return n->nodeId();
if (!n->xmlClass().isEmpty() && name == QLatin1String("class"))
return n->xmlClass();
return QString();
}
virtual bool hasAttributes(NodePtr node) const
{
QSvgNode *n = svgNode(node);
return (n &&
(!n->nodeId().isEmpty() || !n->xmlClass().isEmpty()));
}
virtual QStringList nodeIds(NodePtr node) const
{
QSvgNode *n = svgNode(node);
QString nid;
if (n)
nid = n->nodeId();
QStringList lst; lst.append(nid);
return lst;
}
virtual QStringList nodeNames(NodePtr node) const
{
QSvgNode *n = svgNode(node);
if (n)
return QStringList(nodeToName(n));
return QStringList();
}
virtual bool isNullNode(NodePtr node) const
{
return !node.ptr;
}
virtual NodePtr parentNode(NodePtr node) const
{
QSvgNode *n = svgNode(node);
NodePtr newNode;
newNode.ptr = 0;
newNode.id = 0;
if (n) {
QSvgNode *svgParent = n->parent();
if (svgParent) {
newNode.ptr = svgParent;
}
}
return newNode;
}
virtual NodePtr previousSiblingNode(NodePtr node) const
{
NodePtr newNode;
newNode.ptr = 0;
newNode.id = 0;
QSvgNode *n = svgNode(node);
if (!n)
return newNode;
QSvgStructureNode *svgParent = nodeToStructure(n->parent());
if (svgParent) {
newNode.ptr = svgParent->previousSiblingNode(n);
}
return newNode;
}
virtual NodePtr duplicateNode(NodePtr node) const
{
NodePtr n;
n.ptr = node.ptr;
n.id = node.id;
return n;
}
virtual void freeNode(NodePtr node) const
{
Q_UNUSED(node);
}
};
// '0' is 0x30 and '9' is 0x39
static inline bool isDigit(ushort ch)
{
static quint16 magic = 0x3ff;
return ((ch >> 4) == 3) && (magic >> (ch & 15));
}
static qreal toDouble(const QChar *&str)
{
const int maxLen = 255;//technically doubles can go til 308+ but whatever
char temp[maxLen+1];
int pos = 0;
if (*str == QLatin1Char('-')) {
temp[pos++] = '-';
++str;
} else if (*str == QLatin1Char('+')) {
++str;
}
while (isDigit(str->unicode()) && pos < maxLen) {
temp[pos++] = str->toLatin1();
++str;
}
if (*str == QLatin1Char('.') && pos < maxLen) {
temp[pos++] = '.';
++str;
}
while (isDigit(str->unicode()) && pos < maxLen) {
temp[pos++] = str->toLatin1();
++str;
}
bool exponent = false;
if ((*str == QLatin1Char('e') || *str == QLatin1Char('E')) && pos < maxLen) {
exponent = true;
temp[pos++] = 'e';
++str;
if ((*str == QLatin1Char('-') || *str == QLatin1Char('+')) && pos < maxLen) {
temp[pos++] = str->toLatin1();
++str;
}
while (isDigit(str->unicode()) && pos < maxLen) {
temp[pos++] = str->toLatin1();
++str;
}
}
temp[pos] = '\0';
qreal val;
if (!exponent && pos < 10) {
int ival = 0;
const char *t = temp;
bool neg = false;
if(*t == '-') {
neg = true;
++t;
}
while(*t && *t != '.') {
ival *= 10;
ival += (*t) - '0';
++t;
}
if(*t == '.') {
++t;
int div = 1;
while(*t) {
ival *= 10;
ival += (*t) - '0';
div *= 10;
++t;
}
val = ((qreal)ival)/((qreal)div);
} else {
val = ival;
}
if (neg)
val = -val;
} else {
#if defined(Q_WS_QWS) && !defined(Q_OS_VXWORKS)
if(sizeof(qreal) == sizeof(float))
val = strtof(temp, 0);
else
#endif
{
bool ok = false;
val = qstrtod(temp, 0, &ok);
}
}
return val;
}
static qreal toDouble(const QString &str, bool *ok = NULL)
{
const QChar *c = str.constData();
qreal res = toDouble(c);
if (ok) {
*ok = ((*c) == QLatin1Char('\0'));
}
return res;
}
static qreal toDouble(const QStringRef &str, bool *ok = NULL)
{
const QChar *c = str.constData();
qreal res = toDouble(c);
if (ok) {
*ok = (c == (str.constData() + str.length()));
}
return res;
}
static QVector<qreal> parseNumbersList(const QChar *&str)
{
QVector<qreal> points;
if (!str)
return points;
points.reserve(32);
while (str->isSpace())
++str;
while (isDigit(str->unicode()) ||
*str == QLatin1Char('-') || *str == QLatin1Char('+') ||
*str == QLatin1Char('.')) {
points.append(toDouble(str));
while (str->isSpace())
++str;
if (*str == QLatin1Char(','))
++str;
//eat the rest of space
while (str->isSpace())
++str;
}
return points;
}
static inline void parseNumbersArray(const QChar *&str, QVarLengthArray<qreal, 8> &points)
{
while (str->isSpace())
++str;
while (isDigit(str->unicode()) ||
*str == QLatin1Char('-') || *str == QLatin1Char('+') ||
*str == QLatin1Char('.')) {
points.append(toDouble(str));
while (str->isSpace())
++str;
if (*str == QLatin1Char(','))
++str;
//eat the rest of space
while (str->isSpace())
++str;
}
}
static QVector<qreal> parsePercentageList(const QChar *&str)
{
QVector<qreal> points;
if (!str)
return points;
while (str->isSpace())
++str;
while ((*str >= QLatin1Char('0') && *str <= QLatin1Char('9')) ||
*str == QLatin1Char('-') || *str == QLatin1Char('+') ||
*str == QLatin1Char('.')) {
points.append(toDouble(str));
while (str->isSpace())
++str;
if (*str == QLatin1Char('%'))
++str;
while (str->isSpace())
++str;
if (*str == QLatin1Char(','))
++str;
//eat the rest of space
while (str->isSpace())
++str;
}
return points;
}
static QString idFromUrl(const QString &url)
{
QString::const_iterator itr = url.constBegin();
while ((*itr).isSpace())
++itr;
if ((*itr) == QLatin1Char('('))
++itr;
while ((*itr).isSpace())
++itr;
if ((*itr) == QLatin1Char('#'))
++itr;
QString id;
while ((*itr) != QLatin1Char(')')) {
id += *itr;
++itr;
}
return id;
}
static inline QStringRef trimRef(const QStringRef &str)
{
if (str.isEmpty())
return QStringRef();
const QChar *s = str.string()->constData() + str.position();
int end = str.length() - 1;
if (!s[0].isSpace() && !s[end].isSpace())
return str;
int start = 0;
while (start<=end && s[start].isSpace()) // skip white space from start
start++;
if (start <= end) { // only white space
while (s[end].isSpace()) // skip white space from end
end--;
}
int l = end - start + 1;
if (l <= 0)
return QStringRef();
return QStringRef(str.string(), str.position() + start, l);
}
/**
* returns true when successfuly set the color. false signifies
* that the color should be inherited
*/
static bool resolveColor(const QStringRef &colorStr, QColor &color, QSvgHandler *handler)
{
QStringRef colorStrTr = trimRef(colorStr);
if (colorStrTr.isEmpty())
return false;
switch(colorStrTr.at(0).unicode()) {
case '#':
{
// #rrggbb is very very common, so let's tackle it here
// rather than falling back to QColor
QRgb rgb;
bool ok = qsvg_get_hex_rgb(colorStrTr.unicode(), colorStrTr.length(), &rgb);
if (ok)
color.setRgb(rgb);
return ok;
}
break;
case 'r':
{
// starts with "rgb(", ends with ")" and consists of at least 7 characters "rgb(,,)"
if (colorStrTr.length() >= 7 && colorStrTr.at(colorStrTr.length() - 1) == QLatin1Char(')')
&& QStringRef(colorStrTr.string(), colorStrTr.position(), 4) == QLatin1String("rgb(")) {
const QChar *s = colorStrTr.constData() + 4;
QVector<qreal> compo = parseNumbersList(s);
//1 means that it failed after reaching non-parsable
//character which is going to be "%"
if (compo.size() == 1) {
s = colorStrTr.constData() + 4;
compo = parsePercentageList(s);
for (int i = 0; i < compo.size(); ++i)
compo[i] *= (qreal)2.55;
}
if (compo.size() == 3) {
color = QColor(int(compo[0]),
int(compo[1]),
int(compo[2]));
return true;
}
return false;
}
}
break;
case 'c':
if (colorStrTr == QLatin1String("currentColor")) {
color = handler->currentColor();
return true;
}
break;
case 'i':
if (colorStrTr == QT_INHERIT)
return false;
break;
default:
break;
}
color = QColor(colorStrTr.toString());
return color.isValid();
}
static bool constructColor(const QStringRef &colorStr, const QStringRef &opacity,
QColor &color, QSvgHandler *handler)
{
if (!resolveColor(colorStr, color, handler))
return false;
if (!opacity.isEmpty()) {
bool ok = true;
qreal op = qMin(qreal(1.0), qMax(qreal(0.0), toDouble(opacity, &ok)));
if (!ok)
op = 1.0;
color.setAlphaF(op);
}
return true;
}
static qreal parseLength(const QString &str, QSvgHandler::LengthType &type,
QSvgHandler *handler, bool *ok = NULL)
{
QString numStr = str.trimmed();
if (numStr.endsWith(QLatin1Char('%'))) {
numStr.chop(1);
type = QSvgHandler::LT_PERCENT;
} else if (numStr.endsWith(QLatin1String("px"))) {
numStr.chop(2);
type = QSvgHandler::LT_PX;
} else if (numStr.endsWith(QLatin1String("pc"))) {
numStr.chop(2);
type = QSvgHandler::LT_PC;
} else if (numStr.endsWith(QLatin1String("pt"))) {
numStr.chop(2);
type = QSvgHandler::LT_PT;
} else if (numStr.endsWith(QLatin1String("mm"))) {
numStr.chop(2);
type = QSvgHandler::LT_MM;
} else if (numStr.endsWith(QLatin1String("cm"))) {
numStr.chop(2);
type = QSvgHandler::LT_CM;
} else if (numStr.endsWith(QLatin1String("in"))) {
numStr.chop(2);
type = QSvgHandler::LT_IN;
} else {
type = handler->defaultCoordinateSystem();
//type = QSvgHandler::LT_OTHER;
}
qreal len = toDouble(numStr, ok);
//qDebug()<<"len is "<<len<<", from '"<<numStr << "'";
return len;
}
static inline qreal convertToNumber(const QString &str, QSvgHandler *handler, bool *ok = NULL)
{
QSvgHandler::LengthType type;
qreal num = parseLength(str, type, handler, ok);
if (type == QSvgHandler::LT_PERCENT) {
num = num/100.0;
}
return num;
}
static bool createSvgGlyph(QSvgFont *font, const QXmlStreamAttributes &attributes)
{
QStringRef uncStr = attributes.value(QLatin1String("unicode"));
QStringRef havStr = attributes.value(QLatin1String("horiz-adv-x"));
QStringRef pathStr = attributes.value(QLatin1String("d"));
QChar unicode = (uncStr.isEmpty()) ? 0 : uncStr.at(0);
qreal havx = (havStr.isEmpty()) ? -1 : toDouble(havStr);
QPainterPath path;
path.setFillRule(Qt::WindingFill);
parsePathDataFast(pathStr, path);
font->addGlyph(unicode, path, havx);
return true;
}
// this should really be called convertToDefaultCoordinateSystem
// and convert when type != QSvgHandler::defaultCoordinateSystem
static qreal convertToPixels(qreal len, bool , QSvgHandler::LengthType type)
{
switch (type) {
case QSvgHandler::LT_PERCENT:
break;
case QSvgHandler::LT_PX:
break;
case QSvgHandler::LT_PC:
break;
case QSvgHandler::LT_PT:
return len * 1.25;
break;
case QSvgHandler::LT_MM:
return len * 3.543307;
break;
case QSvgHandler::LT_CM:
return len * 35.43307;
break;
case QSvgHandler::LT_IN:
return len * 90;
break;
case QSvgHandler::LT_OTHER:
break;
default:
break;
}
return len;
}
static void parseColor(QSvgNode *,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
QColor color;
if (constructColor(attributes.color, attributes.colorOpacity, color, handler)) {
handler->popColor();
handler->pushColor(color);
}
}
static QSvgStyleProperty *styleFromUrl(QSvgNode *node, const QString &url)
{
return node ? node->styleProperty(idFromUrl(url)) : 0;
}
static void parseBrush(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
if (!attributes.fill.isEmpty() || !attributes.fillRule.isEmpty() || !attributes.fillOpacity.isEmpty()) {
QSvgFillStyle *prop = new QSvgFillStyle;
//fill-rule attribute handling
if (!attributes.fillRule.isEmpty() && attributes.fillRule != QT_INHERIT) {
if (attributes.fillRule == QLatin1String("evenodd"))
prop->setFillRule(Qt::OddEvenFill);
else if (attributes.fillRule == QLatin1String("nonzero"))
prop->setFillRule(Qt::WindingFill);
}
//fill-opacity atttribute handling
if (!attributes.fillOpacity.isEmpty() && attributes.fillOpacity != QT_INHERIT) {
prop->setFillOpacity(qMin(qreal(1.0), qMax(qreal(0.0), toDouble(attributes.fillOpacity))));
}
//fill attribute handling
if ((!attributes.fill.isEmpty()) && (attributes.fill != QT_INHERIT) ) {
if (attributes.fill.length() > 3 &&
QStringRef(attributes.fill.string(), attributes.fill.position(), 3) == QLatin1String("url")) {
QStringRef urlRef(attributes.fill.string(), attributes.fill.position() + 3, attributes.fill.length() - 3);
QString value = urlRef.toString();
QSvgStyleProperty *style = styleFromUrl(node, value);
if (style) {
if (style->type() == QSvgStyleProperty::SOLID_COLOR || style->type() == QSvgStyleProperty::GRADIENT)
prop->setFillStyle(reinterpret_cast<QSvgFillStyleProperty *>(style));
} else {
QString id = idFromUrl(value);
prop->setGradientId(id);
prop->setGradientResolved(false);
}
} else if (attributes.fill != QLatin1String("none")) {
QColor color;
if (resolveColor(attributes.fill, color, handler))
prop->setBrush(QBrush(color));
} else {
prop->setBrush(QBrush(Qt::NoBrush));
}
}
node->appendStyleProperty(prop, attributes.id);
}
}
static QMatrix parseTransformationMatrix(const QStringRef &value)
{
if (value.isEmpty())
return QMatrix();
QMatrix matrix;
const QChar *str = value.constData();
const QChar *end = str + value.length();
while (str < end) {
if (str->isSpace() || *str == QLatin1Char(',')) {
++str;
continue;
}
enum State {
Matrix,
Translate,
Rotate,
Scale,
SkewX,
SkewY
};
State state = Matrix;
if (*str == QLatin1Char('m')) { //matrix
const char *ident = "atrix";
for (int i = 0; i < 5; ++i)
if (*(++str) != QLatin1Char(ident[i]))
goto error;
++str;
state = Matrix;
} else if (*str == QLatin1Char('t')) { //translate
const char *ident = "ranslate";
for (int i = 0; i < 8; ++i)
if (*(++str) != QLatin1Char(ident[i]))
goto error;
++str;
state = Translate;
} else if (*str == QLatin1Char('r')) { //rotate
const char *ident = "otate";
for (int i = 0; i < 5; ++i)
if (*(++str) != QLatin1Char(ident[i]))
goto error;
++str;
state = Rotate;
} else if (*str == QLatin1Char('s')) { //scale, skewX, skewY
++str;
if (*str == QLatin1Char('c')) {
const char *ident = "ale";
for (int i = 0; i < 3; ++i)
if (*(++str) != QLatin1Char(ident[i]))
goto error;
++str;
state = Scale;
} else if (*str == QLatin1Char('k')) {
if (*(++str) != QLatin1Char('e'))
goto error;
if (*(++str) != QLatin1Char('w'))
goto error;
++str;
if (*str == QLatin1Char('X'))
state = SkewX;
else if (*str == QLatin1Char('Y'))
state = SkewY;
else
goto error;
++str;
} else {
goto error;
}
} else {
goto error;
}
while (str < end && str->isSpace())
++str;
if (*str != QLatin1Char('('))
goto error;
++str;
QVarLengthArray<qreal, 8> points;
parseNumbersArray(str, points);
if (*str != QLatin1Char(')'))
goto error;
++str;
if(state == Matrix) {
if(points.count() != 6)
goto error;
matrix = matrix * QMatrix(points[0], points[1],
points[2], points[3],
points[4], points[5]);
} else if (state == Translate) {
if (points.count() == 1)
matrix.translate(points[0], 0);
else if (points.count() == 2)
matrix.translate(points[0], points[1]);
else
goto error;
} else if (state == Rotate) {
if(points.count() == 1) {
matrix.rotate(points[0]);
} else if (points.count() == 3) {
matrix.translate(points[1], points[2]);
matrix.rotate(points[0]);
matrix.translate(-points[1], -points[2]);
} else {
goto error;
}
} else if (state == Scale) {
if (points.count() < 1 || points.count() > 2)
goto error;
qreal sx = points[0];
qreal sy = sx;
if(points.count() == 2)
sy = points[1];
matrix.scale(sx, sy);
} else if (state == SkewX) {
if (points.count() != 1)
goto error;
const qreal deg2rad = qreal(0.017453292519943295769);
matrix.shear(qTan(points[0]*deg2rad), 0);
} else if (state == SkewY) {
if (points.count() != 1)
goto error;
const qreal deg2rad = qreal(0.017453292519943295769);
matrix.shear(0, qTan(points[0]*deg2rad));
}
}
error:
return matrix;
}
static void parsePen(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
//qDebug()<<"Node "<<node->type()<<", attrs are "<<value<<width;
if (!attributes.stroke.isEmpty() || !attributes.strokeDashArray.isEmpty() || !attributes.strokeDashOffset.isEmpty() || !attributes.strokeLineCap.isEmpty()
|| !attributes.strokeLineJoin.isEmpty() || !attributes.strokeMiterLimit.isEmpty() || !attributes.strokeOpacity.isEmpty() || !attributes.strokeWidth.isEmpty()
|| !attributes.vectorEffect.isEmpty()) {
QSvgStrokeStyle *prop = new QSvgStrokeStyle;
//stroke attribute handling
if ((!attributes.stroke.isEmpty()) && (attributes.stroke != QT_INHERIT) ) {
if (attributes.stroke.length() > 3 &&
QStringRef(attributes.stroke.string(), attributes.stroke.position(), 3) == QLatin1String("url")) {
QStringRef urlRef(attributes.stroke.string(), attributes.stroke.position() + 3, attributes.stroke.length() - 3);
QString value = urlRef.toString();
QSvgStyleProperty *style = styleFromUrl(node, value);
if (style) {
if (style->type() == QSvgStyleProperty::SOLID_COLOR || style->type() == QSvgStyleProperty::GRADIENT)
prop->setStyle(reinterpret_cast<QSvgFillStyleProperty *>(style));
} else {
QString id = idFromUrl(value);
prop->setGradientId(id);
prop->setGradientResolved(false);
}
} else if (attributes.stroke != QLatin1String("none")) {
QColor color;
if (resolveColor(attributes.stroke, color, handler))
prop->setStroke(QBrush(color));
} else {
prop->setStroke(QBrush(Qt::NoBrush));
}
}
//stroke-width handling
if (!attributes.strokeWidth.isEmpty() && attributes.strokeWidth != QT_INHERIT) {
QSvgHandler::LengthType lt;
prop->setWidth(parseLength(attributes.strokeWidth.toString(), lt, handler));
}
//stroke-dasharray
if (!attributes.strokeDashArray.isEmpty() && attributes.strokeDashArray != QT_INHERIT) {
if (attributes.strokeDashArray == QLatin1String("none")) {
prop->setDashArrayNone();
} else {
QString dashArray = attributes.strokeDashArray.toString();
const QChar *s = dashArray.constData();
QVector<qreal> dashes = parseNumbersList(s);
// if the dash count is odd the dashes should be duplicated
if ((dashes.size() & 1) != 0)
dashes << QVector<qreal>(dashes);
prop->setDashArray(dashes);
}
}
//stroke-linejoin attribute handling
if (!attributes.strokeLineJoin.isEmpty()) {
if (attributes.strokeLineJoin == QLatin1String("miter"))
prop->setLineJoin(Qt::SvgMiterJoin);
else if (attributes.strokeLineJoin == QLatin1String("round"))
prop->setLineJoin(Qt::RoundJoin);
else if (attributes.strokeLineJoin == QLatin1String("bevel"))
prop->setLineJoin(Qt::BevelJoin);
}
//stroke-linecap attribute handling
if (!attributes.strokeLineCap.isEmpty()) {
if (attributes.strokeLineCap == QLatin1String("butt"))
prop->setLineCap(Qt::FlatCap);
else if (attributes.strokeLineCap == QLatin1String("round"))
prop->setLineCap(Qt::RoundCap);
else if (attributes.strokeLineCap == QLatin1String("square"))
prop->setLineCap(Qt::SquareCap);
}
//stroke-dashoffset attribute handling
if (!attributes.strokeDashOffset.isEmpty() && attributes.strokeDashOffset != QT_INHERIT)
prop->setDashOffset(toDouble(attributes.strokeDashOffset));
//vector-effect attribute handling
if (!attributes.vectorEffect.isEmpty()) {
if (attributes.vectorEffect == QLatin1String("non-scaling-stroke"))
prop->setVectorEffect(true);
else if (attributes.vectorEffect == QLatin1String("none"))
prop->setVectorEffect(false);
}
//stroke-miterlimit
if (!attributes.strokeMiterLimit.isEmpty() && attributes.strokeMiterLimit != QT_INHERIT)
prop->setMiterLimit(toDouble(attributes.strokeMiterLimit));
//stroke-opacity atttribute handling
if (!attributes.strokeOpacity.isEmpty() && attributes.strokeOpacity != QT_INHERIT)
prop->setOpacity(qMin(qreal(1.0), qMax(qreal(0.0), toDouble(attributes.strokeOpacity))));
node->appendStyleProperty(prop, attributes.id);
}
}
static void parseFont(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
if (attributes.fontFamily.isEmpty() && attributes.fontSize.isEmpty() && attributes.fontStyle.isEmpty() &&
attributes.fontWeight.isEmpty() && attributes.fontVariant.isEmpty() && attributes.textAnchor.isEmpty())
return;
QSvgTinyDocument *doc = node->document();
QSvgFontStyle *fontStyle = 0;
if (!attributes.fontFamily.isEmpty()) {
QSvgFont *svgFont = doc->svgFont(attributes.fontFamily.toString());
if (svgFont)
fontStyle = new QSvgFontStyle(svgFont, doc);
}
if (!fontStyle)
fontStyle = new QSvgFontStyle;
if (!attributes.fontFamily.isEmpty() && attributes.fontFamily != QT_INHERIT)
fontStyle->setFamily(attributes.fontFamily.toString().trimmed());
if (!attributes.fontSize.isEmpty() && attributes.fontSize != QT_INHERIT) {
// TODO: Support relative sizes 'larger' and 'smaller'.
QSvgHandler::LengthType dummy; // should always be pixel size
qreal size = 0;
static const qreal sizeTable[] = { qreal(6.9), qreal(8.3), qreal(10.0), qreal(12.0), qreal(14.4), qreal(17.3), qreal(20.7) };
enum AbsFontSize { XXSmall, XSmall, Small, Medium, Large, XLarge, XXLarge };
switch (attributes.fontSize.at(0).unicode()) {
case 'x':
if (attributes.fontSize == QLatin1String("xx-small"))
size = sizeTable[XXSmall];
else if (attributes.fontSize == QLatin1String("x-small"))
size = sizeTable[XSmall];
else if (attributes.fontSize == QLatin1String("x-large"))
size = sizeTable[XLarge];
else if (attributes.fontSize == QLatin1String("xx-large"))
size = sizeTable[XXLarge];
break;
case 's':
if (attributes.fontSize == QLatin1String("small"))
size = sizeTable[Small];
break;
case 'm':
if (attributes.fontSize == QLatin1String("medium"))
size = sizeTable[Medium];
break;
case 'l':
if (attributes.fontSize == QLatin1String("large"))
size = sizeTable[Large];
break;
default:
size = parseLength(attributes.fontSize.toString(), dummy, handler);
break;
}
fontStyle->setSize(size);
}
if (!attributes.fontStyle.isEmpty() && attributes.fontStyle != QT_INHERIT) {
if (attributes.fontStyle == QLatin1String("normal")) {
fontStyle->setStyle(QFont::StyleNormal);
} else if (attributes.fontStyle == QLatin1String("italic")) {
fontStyle->setStyle(QFont::StyleItalic);
} else if (attributes.fontStyle == QLatin1String("oblique")) {
fontStyle->setStyle(QFont::StyleOblique);
}
}
if (!attributes.fontWeight.isEmpty() && attributes.fontWeight != QT_INHERIT) {
bool ok = false;
int weightNum = attributes.fontWeight.toString().toInt(&ok);
if (ok) {
fontStyle->setWeight(weightNum);
} else {
if (attributes.fontWeight == QLatin1String("normal")) {
fontStyle->setWeight(400);
} else if (attributes.fontWeight == QLatin1String("bold")) {
fontStyle->setWeight(700);
} else if (attributes.fontWeight == QLatin1String("bolder")) {
fontStyle->setWeight(QSvgFontStyle::BOLDER);
} else if (attributes.fontWeight == QLatin1String("lighter")) {
fontStyle->setWeight(QSvgFontStyle::LIGHTER);
}
}
}
if (!attributes.fontVariant.isEmpty() && attributes.fontVariant != QT_INHERIT) {
if (attributes.fontVariant == QLatin1String("normal"))
fontStyle->setVariant(QFont::MixedCase);
else if (attributes.fontVariant == QLatin1String("small-caps"))
fontStyle->setVariant(QFont::SmallCaps);
}
if (!attributes.textAnchor.isEmpty() && attributes.textAnchor != QT_INHERIT) {
if (attributes.textAnchor == QLatin1String("start"))
fontStyle->setTextAnchor(Qt::AlignLeft);
if (attributes.textAnchor == QLatin1String("middle"))
fontStyle->setTextAnchor(Qt::AlignHCenter);
else if (attributes.textAnchor == QLatin1String("end"))
fontStyle->setTextAnchor(Qt::AlignRight);
}
node->appendStyleProperty(fontStyle, attributes.id);
}
static void parseTransform(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.transform.isEmpty())
return;
QMatrix matrix = parseTransformationMatrix(trimRef(attributes.transform));
if (!matrix.isIdentity()) {
node->appendStyleProperty(new QSvgTransformStyle(QTransform(matrix)), attributes.id);
}
}
static void parseVisibility(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
QSvgNode *parent = node->parent();
if (parent && (attributes.visibility.isEmpty() || attributes.visibility == QT_INHERIT))
node->setVisible(parent->isVisible());
else if (attributes.visibility == QLatin1String("hidden") || attributes.visibility == QLatin1String("collapse")) {
node->setVisible(false);
} else
node->setVisible(true);
}
static void pathArcSegment(QPainterPath &path,
qreal xc, qreal yc,
qreal th0, qreal th1,
qreal rx, qreal ry, qreal xAxisRotation)
{
qreal sinTh, cosTh;
qreal a00, a01, a10, a11;
qreal x1, y1, x2, y2, x3, y3;
qreal t;
qreal thHalf;
sinTh = qSin(xAxisRotation * (Q_PI / 180.0));
cosTh = qCos(xAxisRotation * (Q_PI / 180.0));
a00 = cosTh * rx;
a01 = -sinTh * ry;
a10 = sinTh * rx;
a11 = cosTh * ry;
thHalf = 0.5 * (th1 - th0);
t = (8.0 / 3.0) * qSin(thHalf * 0.5) * qSin(thHalf * 0.5) / qSin(thHalf);
x1 = xc + qCos(th0) - t * qSin(th0);
y1 = yc + qSin(th0) + t * qCos(th0);
x3 = xc + qCos(th1);
y3 = yc + qSin(th1);
x2 = x3 + t * qSin(th1);
y2 = y3 - t * qCos(th1);
path.cubicTo(a00 * x1 + a01 * y1, a10 * x1 + a11 * y1,
a00 * x2 + a01 * y2, a10 * x2 + a11 * y2,
a00 * x3 + a01 * y3, a10 * x3 + a11 * y3);
}
// the arc handling code underneath is from XSVG (BSD license)
/*
* Copyright 2002 USC/Information Sciences Institute
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Information Sciences Institute not be used in advertising or
* publicity pertaining to distribution of the software without
* specific, written prior permission. Information Sciences Institute
* makes no representations about the suitability of this software for
* any purpose. It is provided "as is" without express or implied
* warranty.
*
* INFORMATION SCIENCES INSTITUTE DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL INFORMATION SCIENCES
* INSTITUTE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
* OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
static void pathArc(QPainterPath &path,
qreal rx,
qreal ry,
qreal x_axis_rotation,
int large_arc_flag,
int sweep_flag,
qreal x,
qreal y,
qreal curx, qreal cury)
{
qreal sin_th, cos_th;
qreal a00, a01, a10, a11;
qreal x0, y0, x1, y1, xc, yc;
qreal d, sfactor, sfactor_sq;
qreal th0, th1, th_arc;
int i, n_segs;
qreal dx, dy, dx1, dy1, Pr1, Pr2, Px, Py, check;
rx = qAbs(rx);
ry = qAbs(ry);
sin_th = qSin(x_axis_rotation * (Q_PI / 180.0));
cos_th = qCos(x_axis_rotation * (Q_PI / 180.0));
dx = (curx - x) / 2.0;
dy = (cury - y) / 2.0;
dx1 = cos_th * dx + sin_th * dy;
dy1 = -sin_th * dx + cos_th * dy;
Pr1 = rx * rx;
Pr2 = ry * ry;
Px = dx1 * dx1;
Py = dy1 * dy1;
/* Spec : check if radii are large enough */
check = Px / Pr1 + Py / Pr2;
if (check > 1) {
rx = rx * qSqrt(check);
ry = ry * qSqrt(check);
}
a00 = cos_th / rx;
a01 = sin_th / rx;
a10 = -sin_th / ry;
a11 = cos_th / ry;
x0 = a00 * curx + a01 * cury;
y0 = a10 * curx + a11 * cury;
x1 = a00 * x + a01 * y;
y1 = a10 * x + a11 * y;
/* (x0, y0) is current point in transformed coordinate space.
(x1, y1) is new point in transformed coordinate space.
The arc fits a unit-radius circle in this space.
*/
d = (x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0);
sfactor_sq = 1.0 / d - 0.25;
if (sfactor_sq < 0) sfactor_sq = 0;
sfactor = qSqrt(sfactor_sq);
if (sweep_flag == large_arc_flag) sfactor = -sfactor;
xc = 0.5 * (x0 + x1) - sfactor * (y1 - y0);
yc = 0.5 * (y0 + y1) + sfactor * (x1 - x0);
/* (xc, yc) is center of the circle. */
th0 = qAtan2(y0 - yc, x0 - xc);
th1 = qAtan2(y1 - yc, x1 - xc);
th_arc = th1 - th0;
if (th_arc < 0 && sweep_flag)
th_arc += 2 * Q_PI;
else if (th_arc > 0 && !sweep_flag)
th_arc -= 2 * Q_PI;
n_segs = qCeil(qAbs(th_arc / (Q_PI * 0.5 + 0.001)));
for (i = 0; i < n_segs; i++) {
pathArcSegment(path, xc, yc,
th0 + i * th_arc / n_segs,
th0 + (i + 1) * th_arc / n_segs,
rx, ry, x_axis_rotation);
}
}
static bool parsePathDataFast(const QStringRef &dataStr, QPainterPath &path)
{
qreal x0 = 0, y0 = 0; // starting point
qreal x = 0, y = 0; // current point
char lastMode = 0;
QPointF ctrlPt;
const QChar *str = dataStr.constData();
const QChar *end = str + dataStr.size();
while (str != end) {
while (str->isSpace())
++str;
QChar pathElem = *str;
++str;
QChar endc = *end;
*const_cast<QChar *>(end) = 0; // parseNumbersArray requires 0-termination that QStringRef cannot guarantee
QVarLengthArray<qreal, 8> arg;
parseNumbersArray(str, arg);
*const_cast<QChar *>(end) = endc;
if (pathElem == QLatin1Char('z') || pathElem == QLatin1Char('Z'))
arg.append(0);//dummy
const qreal *num = arg.constData();
int count = arg.count();
while (count > 0) {
qreal offsetX = x; // correction offsets
qreal offsetY = y; // for relative commands
switch (pathElem.unicode()) {
case 'm': {
if (count < 2) {
num++;
count--;
break;
}
x = x0 = num[0] + offsetX;
y = y0 = num[1] + offsetY;
num += 2;
count -= 2;
path.moveTo(x0, y0);
// As per 1.2 spec 8.3.2 The "moveto" commands
// If a 'moveto' is followed by multiple pairs of coordinates without explicit commands,
// the subsequent pairs shall be treated as implicit 'lineto' commands.
pathElem = QLatin1Char('l');
}
break;
case 'M': {
if (count < 2) {
num++;
count--;
break;
}
x = x0 = num[0];
y = y0 = num[1];
num += 2;
count -= 2;
path.moveTo(x0, y0);
// As per 1.2 spec 8.3.2 The "moveto" commands
// If a 'moveto' is followed by multiple pairs of coordinates without explicit commands,
// the subsequent pairs shall be treated as implicit 'lineto' commands.
pathElem = QLatin1Char('L');
}
break;
case 'z':
case 'Z': {
x = x0;
y = y0;
count--; // skip dummy
num++;
path.closeSubpath();
}
break;
case 'l': {
if (count < 2) {
num++;
count--;
break;
}
x = num[0] + offsetX;
y = num[1] + offsetY;
num += 2;
count -= 2;
path.lineTo(x, y);
}
break;
case 'L': {
if (count < 2) {
num++;
count--;
break;
}
x = num[0];
y = num[1];
num += 2;
count -= 2;
path.lineTo(x, y);
}
break;
case 'h': {
x = num[0] + offsetX;
num++;
count--;
path.lineTo(x, y);
}
break;
case 'H': {
x = num[0];
num++;
count--;
path.lineTo(x, y);
}
break;
case 'v': {
y = num[0] + offsetY;
num++;
count--;
path.lineTo(x, y);
}
break;
case 'V': {
y = num[0];
num++;
count--;
path.lineTo(x, y);
}
break;
case 'c': {
if (count < 6) {
num += count;
count = 0;
break;
}
QPointF c1(num[0] + offsetX, num[1] + offsetY);
QPointF c2(num[2] + offsetX, num[3] + offsetY);
QPointF e(num[4] + offsetX, num[5] + offsetY);
num += 6;
count -= 6;
path.cubicTo(c1, c2, e);
ctrlPt = c2;
x = e.x();
y = e.y();
break;
}
case 'C': {
if (count < 6) {
num += count;
count = 0;
break;
}
QPointF c1(num[0], num[1]);
QPointF c2(num[2], num[3]);
QPointF e(num[4], num[5]);
num += 6;
count -= 6;
path.cubicTo(c1, c2, e);
ctrlPt = c2;
x = e.x();
y = e.y();
break;
}
case 's': {
if (count < 4) {
num += count;
count = 0;
break;
}
QPointF c1;
if (lastMode == 'c' || lastMode == 'C' ||
lastMode == 's' || lastMode == 'S')
c1 = QPointF(2*x-ctrlPt.x(), 2*y-ctrlPt.y());
else
c1 = QPointF(x, y);
QPointF c2(num[0] + offsetX, num[1] + offsetY);
QPointF e(num[2] + offsetX, num[3] + offsetY);
num += 4;
count -= 4;
path.cubicTo(c1, c2, e);
ctrlPt = c2;
x = e.x();
y = e.y();
break;
}
case 'S': {
if (count < 4) {
num += count;
count = 0;
break;
}
QPointF c1;
if (lastMode == 'c' || lastMode == 'C' ||
lastMode == 's' || lastMode == 'S')
c1 = QPointF(2*x-ctrlPt.x(), 2*y-ctrlPt.y());
else
c1 = QPointF(x, y);
QPointF c2(num[0], num[1]);
QPointF e(num[2], num[3]);
num += 4;
count -= 4;
path.cubicTo(c1, c2, e);
ctrlPt = c2;
x = e.x();
y = e.y();
break;
}
case 'q': {
if (count < 4) {
num += count;
count = 0;
break;
}
QPointF c(num[0] + offsetX, num[1] + offsetY);
QPointF e(num[2] + offsetX, num[3] + offsetY);
num += 4;
count -= 4;
path.quadTo(c, e);
ctrlPt = c;
x = e.x();
y = e.y();
break;
}
case 'Q': {
if (count < 4) {
num += count;
count = 0;
break;
}
QPointF c(num[0], num[1]);
QPointF e(num[2], num[3]);
num += 4;
count -= 4;
path.quadTo(c, e);
ctrlPt = c;
x = e.x();
y = e.y();
break;
}
case 't': {
if (count < 2) {
num += count;
count = 0;
break;
}
QPointF e(num[0] + offsetX, num[1] + offsetY);
num += 2;
count -= 2;
QPointF c;
if (lastMode == 'q' || lastMode == 'Q' ||
lastMode == 't' || lastMode == 'T')
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 'T': {
if (count < 2) {
num += count;
count = 0;
break;
}
QPointF e(num[0], num[1]);
num += 2;
count -= 2;
QPointF c;
if (lastMode == 'q' || lastMode == 'Q' ||
lastMode == 't' || lastMode == 'T')
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 'a': {
if (count < 7) {
num += count;
count = 0;
break;
}
qreal rx = (*num++);
qreal ry = (*num++);
qreal xAxisRotation = (*num++);
qreal largeArcFlag = (*num++);
qreal sweepFlag = (*num++);
qreal ex = (*num++) + offsetX;
qreal ey = (*num++) + offsetY;
count -= 7;
qreal curx = x;
qreal cury = y;
pathArc(path, rx, ry, xAxisRotation, int(largeArcFlag),
int(sweepFlag), ex, ey, curx, cury);
x = ex;
y = ey;
}
break;
case 'A': {
if (count < 7) {
num += count;
count = 0;
break;
}
qreal rx = (*num++);
qreal ry = (*num++);
qreal xAxisRotation = (*num++);
qreal largeArcFlag = (*num++);
qreal sweepFlag = (*num++);
qreal ex = (*num++);
qreal ey = (*num++);
count -= 7;
qreal curx = x;
qreal cury = y;
pathArc(path, rx, ry, xAxisRotation, int(largeArcFlag),
int(sweepFlag), ex, ey, curx, cury);
x = ex;
y = ey;
}
break;
default:
return false;
}
lastMode = pathElem.toLatin1();
}
}
return true;
}
static bool parseStyle(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgHandler *);
static bool parseStyle(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *);
static void parseCSStoXMLAttrs(const QVector<QCss::Declaration> &declarations,
QXmlStreamAttributes &attributes)
{
for (int i = 0; i < declarations.count(); ++i) {
const QCss::Declaration &decl = declarations.at(i);
if (decl.d->property.isEmpty())
continue;
QCss::Value val = decl.d->values.first();
QString valueStr;
if (decl.d->values.count() != 1) {
for (int i=0; i<decl.d->values.count(); ++i) {
const QString &value = decl.d->values[i].toString();
if (value.isEmpty())
valueStr += QLatin1Char(',');
else
valueStr += value;
}
} else {
valueStr = val.toString();
}
if (val.type == QCss::Value::Uri) {
valueStr.prepend(QLatin1String("url("));
valueStr.append(QLatin1Char(')'));
} else if (val.type == QCss::Value::Function) {
QStringList lst = val.variant.toStringList();
valueStr.append(lst.at(0));
valueStr.append(QLatin1Char('('));
for (int i = 1; i < lst.count(); ++i) {
valueStr.append(lst.at(i));
if ((i +1) < lst.count())
valueStr.append(QLatin1Char(','));
}
valueStr.append(QLatin1Char(')'));
} else if (val.type == QCss::Value::KnownIdentifier) {
switch (val.variant.toInt()) {
case QCss::Value_None:
valueStr = QLatin1String("none");
break;
default:
break;
}
}
attributes.append(QString(), decl.d->property, valueStr);
}
}
void QSvgHandler::parseCSStoXMLAttrs(QString css, QVector<QSvgCssAttribute> *attributes)
{
// preprocess (for unicode escapes), tokenize and remove comments
m_cssParser.init(css);
QString key;
attributes->reserve(10);
while (m_cssParser.hasNext()) {
m_cssParser.skipSpace();
if (!m_cssParser.hasNext())
break;
m_cssParser.next();
QStringRef name;
if (m_cssParser.hasEscapeSequences) {
key = m_cssParser.lexem();
name = QStringRef(&key, 0, key.length());
} else {
const QCss::Symbol &sym = m_cssParser.symbol();
name = QStringRef(&sym.text, sym.start, sym.len);
}
m_cssParser.skipSpace();
if (!m_cssParser.test(QCss::COLON))
break;
m_cssParser.skipSpace();
if (!m_cssParser.hasNext())
break;
QSvgCssAttribute attribute;
attribute.name = QXmlStreamStringRef(name);
const int firstSymbol = m_cssParser.index;
int symbolCount = 0;
do {
m_cssParser.next();
++symbolCount;
} while (m_cssParser.hasNext() && !m_cssParser.test(QCss::SEMICOLON));
bool canExtractValueByRef = !m_cssParser.hasEscapeSequences;
if (canExtractValueByRef) {
int len = m_cssParser.symbols.at(firstSymbol).len;
for (int i = firstSymbol + 1; i < firstSymbol + symbolCount; ++i) {
len += m_cssParser.symbols.at(i).len;
if (m_cssParser.symbols.at(i - 1).start + m_cssParser.symbols.at(i - 1).len
!= m_cssParser.symbols.at(i).start) {
canExtractValueByRef = false;
break;
}
}
if (canExtractValueByRef) {
const QCss::Symbol &sym = m_cssParser.symbols.at(firstSymbol);
attribute.value = QXmlStreamStringRef(QStringRef(&sym.text, sym.start, len));
}
}
if (!canExtractValueByRef) {
QString value;
for (int i = firstSymbol; i < m_cssParser.index - 1; ++i)
value += m_cssParser.symbols.at(i).lexem();
attribute.value = QXmlStreamStringRef(QStringRef(&value, 0, value.length()));
}
attributes->append(attribute);
m_cssParser.skipSpace();
}
}
static void cssStyleLookup(QSvgNode *node,
QSvgHandler *handler,
QSvgStyleSelector *selector)
{
QCss::StyleSelector::NodePtr cssNode;
cssNode.ptr = node;
QVector<QCss::Declaration> decls = selector->declarationsForNode(cssNode);
QXmlStreamAttributes attributes;
parseCSStoXMLAttrs(decls, attributes);
parseStyle(node, attributes, handler);
}
static inline QStringList stringToList(const QString &str)
{
QStringList lst = str.split(QLatin1Char(','), QString::SkipEmptyParts);
return lst;
}
static bool parseCoreNode(QSvgNode *node,
const QXmlStreamAttributes &attributes)
{
QStringList features;
QStringList extensions;
QStringList languages;
QStringList formats;
QStringList fonts;
QString xmlClassStr;
for (int i = 0; i < attributes.count(); ++i) {
const QXmlStreamAttribute &attribute = attributes.at(i);
QStringRef name = attribute.qualifiedName();
if (name.isEmpty())
continue;
QStringRef value = attribute.value();
switch (name.at(0).unicode()) {
case 'c':
if (name == QLatin1String("class"))
xmlClassStr = value.toString();
break;
case 'r':
if (name == QLatin1String("requiredFeatures"))
features = stringToList(value.toString());
else if (name == QLatin1String("requiredExtensions"))
extensions = stringToList(value.toString());
else if (name == QLatin1String("requiredFormats"))
formats = stringToList(value.toString());
else if (name == QLatin1String("requiredFonts"))
fonts = stringToList(value.toString());
break;
case 's':
if (name == QLatin1String("systemLanguage"))
languages = stringToList(value.toString());
break;
default:
break;
}
}
node->setRequiredFeatures(features);
node->setRequiredExtensions(extensions);
node->setRequiredLanguages(languages);
node->setRequiredFormats(formats);
node->setRequiredFonts(fonts);
node->setNodeId(someId(attributes));
node->setXmlClass(xmlClassStr);
return true;
}
static void parseOpacity(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.opacity.isEmpty())
return;
const QString value = attributes.opacity.toString().trimmed();
bool ok = false;
qreal op = value.toDouble(&ok);
if (ok) {
QSvgOpacityStyle *opacity = new QSvgOpacityStyle(qBound(qreal(0.0), op, qreal(1.0)));
node->appendStyleProperty(opacity, attributes.id);
}
}
static QPainter::CompositionMode svgToQtCompositionMode(const QString &op)
{
#define NOOP qDebug()<<"Operation: "<<op<<" is not implemented"
if (op == QLatin1String("clear")) {
return QPainter::CompositionMode_Clear;
} else if (op == QLatin1String("src")) {
return QPainter::CompositionMode_Source;
} else if (op == QLatin1String("dst")) {
return QPainter::CompositionMode_Destination;
} else if (op == QLatin1String("src-over")) {
return QPainter::CompositionMode_SourceOver;
} else if (op == QLatin1String("dst-over")) {
return QPainter::CompositionMode_DestinationOver;
} else if (op == QLatin1String("src-in")) {
return QPainter::CompositionMode_SourceIn;
} else if (op == QLatin1String("dst-in")) {
return QPainter::CompositionMode_DestinationIn;
} else if (op == QLatin1String("src-out")) {
return QPainter::CompositionMode_SourceOut;
} else if (op == QLatin1String("dst-out")) {
return QPainter::CompositionMode_DestinationOut;
} else if (op == QLatin1String("src-atop")) {
return QPainter::CompositionMode_SourceAtop;
} else if (op == QLatin1String("dst-atop")) {
return QPainter::CompositionMode_DestinationAtop;
} else if (op == QLatin1String("xor")) {
return QPainter::CompositionMode_Xor;
} else if (op == QLatin1String("plus")) {
return QPainter::CompositionMode_Plus;
} else if (op == QLatin1String("multiply")) {
return QPainter::CompositionMode_Multiply;
} else if (op == QLatin1String("screen")) {
return QPainter::CompositionMode_Screen;
} else if (op == QLatin1String("overlay")) {
return QPainter::CompositionMode_Overlay;
} else if (op == QLatin1String("darken")) {
return QPainter::CompositionMode_Darken;
} else if (op == QLatin1String("lighten")) {
return QPainter::CompositionMode_Lighten;
} else if (op == QLatin1String("color-dodge")) {
return QPainter::CompositionMode_ColorDodge;
} else if (op == QLatin1String("color-burn")) {
return QPainter::CompositionMode_ColorBurn;
} else if (op == QLatin1String("hard-light")) {
return QPainter::CompositionMode_HardLight;
} else if (op == QLatin1String("soft-light")) {
return QPainter::CompositionMode_SoftLight;
} else if (op == QLatin1String("difference")) {
return QPainter::CompositionMode_Difference;
} else if (op == QLatin1String("exclusion")) {
return QPainter::CompositionMode_Exclusion;
} else {
NOOP;
}
return QPainter::CompositionMode_SourceOver;
}
static void parseCompOp(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.compOp.isEmpty())
return;
QString value = attributes.compOp.toString().trimmed();
if (!value.isEmpty()) {
QSvgCompOpStyle *compop = new QSvgCompOpStyle(svgToQtCompositionMode(value));
node->appendStyleProperty(compop, attributes.id);
}
}
static inline QSvgNode::DisplayMode displayStringToEnum(const QString &str)
{
if (str == QLatin1String("inline")) {
return QSvgNode::InlineMode;
} else if (str == QLatin1String("block")) {
return QSvgNode::BlockMode;
} else if (str == QLatin1String("list-item")) {
return QSvgNode::ListItemMode;
} else if (str == QLatin1String("run-in")) {
return QSvgNode::RunInMode;
} else if (str == QLatin1String("compact")) {
return QSvgNode::CompactMode;
} else if (str == QLatin1String("marker")) {
return QSvgNode::MarkerMode;
} else if (str == QLatin1String("table")) {
return QSvgNode::TableMode;
} else if (str == QLatin1String("inline-table")) {
return QSvgNode::InlineTableMode;
} else if (str == QLatin1String("table-row")) {
return QSvgNode::TableRowGroupMode;
} else if (str == QLatin1String("table-header-group")) {
return QSvgNode::TableHeaderGroupMode;
} else if (str == QLatin1String("table-footer-group")) {
return QSvgNode::TableFooterGroupMode;
} else if (str == QLatin1String("table-row")) {
return QSvgNode::TableRowMode;
} else if (str == QLatin1String("table-column-group")) {
return QSvgNode::TableColumnGroupMode;
} else if (str == QLatin1String("table-column")) {
return QSvgNode::TableColumnMode;
} else if (str == QLatin1String("table-cell")) {
return QSvgNode::TableCellMode;
} else if (str == QLatin1String("table-caption")) {
return QSvgNode::TableCaptionMode;
} else if (str == QLatin1String("none")) {
return QSvgNode::NoneMode;
} else if (str == QT_INHERIT) {
return QSvgNode::InheritMode;
}
return QSvgNode::BlockMode;
}
static void parseOthers(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.display.isEmpty())
return;
QString displayStr = attributes.display.toString().trimmed();
if (!displayStr.isEmpty()) {
node->setDisplayMode(displayStringToEnum(displayStr));
}
}
static bool parseStyle(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
parseColor(node, attributes, handler);
parseBrush(node, attributes, handler);
parsePen(node, attributes, handler);
parseFont(node, attributes, handler);
parseTransform(node, attributes, handler);
parseVisibility(node, attributes, handler);
parseOpacity(node, attributes, handler);
parseCompOp(node, attributes, handler);
parseOthers(node, attributes, handler);
#if 0
value = attributes.value("audio-level");
value = attributes.value("color-rendering");
value = attributes.value("display-align");
value = attributes.value("image-rendering");
value = attributes.value("line-increment");
value = attributes.value("pointer-events");
value = attributes.value("shape-rendering");
value = attributes.value("solid-color");
value = attributes.value("solid-opacity");
value = attributes.value("text-rendering");
value = attributes.value("vector-effect");
value = attributes.value("viewport-fill");
value = attributes.value("viewport-fill-opacity");
#endif
return true;
}
static bool parseStyle(QSvgNode *node,
const QXmlStreamAttributes &attrs,
QSvgHandler *handler)
{
return parseStyle(node, QSvgAttributes(attrs, handler), handler);
}
static bool parseAnchorNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseAnimateNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseAnimateColorNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString typeStr = attributes.value(QLatin1String("type")).toString();
QStringRef fromStr = attributes.value(QLatin1String("from"));
QStringRef toStr = attributes.value(QLatin1String("to"));
QString valuesStr = attributes.value(QLatin1String("values")).toString();
QString beginStr = attributes.value(QLatin1String("begin")).toString();
QString durStr = attributes.value(QLatin1String("dur")).toString();
QString targetStr = attributes.value(QLatin1String("attributeName")).toString();
QString repeatStr = attributes.value(QLatin1String("repeatCount")).toString();
QString fillStr = attributes.value(QLatin1String("fill")).toString();
QList<QColor> colors;
if (valuesStr.isEmpty()) {
QColor startColor, endColor;
resolveColor(fromStr, startColor, handler);
resolveColor(toStr, endColor, handler);
colors.append(startColor);
colors.append(endColor);
} else {
QStringList str = valuesStr.split(QLatin1Char(';'));
QStringList::const_iterator itr;
for (itr = str.constBegin(); itr != str.constEnd(); ++itr) {
QColor color;
QString str = *itr;
resolveColor(QStringRef(&str), color, handler);
colors.append(color);
}
}
int ms = 1000;
beginStr = beginStr.trimmed();
if (beginStr.endsWith(QLatin1String("ms"))) {
beginStr.chop(2);
ms = 1;
} else if (beginStr.endsWith(QLatin1String("s"))) {
beginStr.chop(1);
}
durStr = durStr.trimmed();
if (durStr.endsWith(QLatin1String("ms"))) {
durStr.chop(2);
ms = 1;
} else if (durStr.endsWith(QLatin1String("s"))) {
durStr.chop(1);
}
int begin = static_cast<int>(toDouble(beginStr) * ms);
int end = static_cast<int>((toDouble(durStr) + begin) * ms);
QSvgAnimateColor *anim = new QSvgAnimateColor(begin, end, 0);
anim->setArgs((targetStr == QLatin1String("fill")), colors);
anim->setFreeze(fillStr == QLatin1String("freeze"));
anim->setRepeatCount(
(repeatStr == QLatin1String("indefinite")) ? -1 :
(repeatStr == QLatin1String("")) ? 1 : toDouble(repeatStr));
parent->appendStyleProperty(anim, someId(attributes));
parent->document()->setAnimated(true);
handler->setAnimPeriod(begin, end);
return true;
}
static bool parseAimateMotionNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static void parseNumberTriplet(QVector<qreal> &values, const QChar *&s)
{
QVector<qreal> list = parseNumbersList(s);
values << list;
for (int i = 3 - list.size(); i > 0; --i)
values.append(0.0);
}
static bool parseAnimateTransformNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString typeStr = attributes.value(QLatin1String("type")).toString();
QString values = attributes.value(QLatin1String("values")).toString();
QString beginStr = attributes.value(QLatin1String("begin")).toString();
QString durStr = attributes.value(QLatin1String("dur")).toString();
QString targetStr = attributes.value(QLatin1String("attributeName")).toString();
QString repeatStr = attributes.value(QLatin1String("repeatCount")).toString();
QString fillStr = attributes.value(QLatin1String("fill")).toString();
QString fromStr = attributes.value(QLatin1String("from")).toString();
QString toStr = attributes.value(QLatin1String("to")).toString();
QString byStr = attributes.value(QLatin1String("by")).toString();
QString addtv = attributes.value(QLatin1String("additive")).toString();
QSvgAnimateTransform::Additive additive = QSvgAnimateTransform::Replace;
if (addtv == QLatin1String("sum"))
additive = QSvgAnimateTransform::Sum;
QVector<qreal> vals;
if (values.isEmpty()) {
const QChar *s;
if (fromStr.isEmpty()) {
if (!byStr.isEmpty()) {
// By-animation.
additive = QSvgAnimateTransform::Sum;
vals.append(0.0);
vals.append(0.0);
vals.append(0.0);
parseNumberTriplet(vals, s = byStr.constData());
} else {
// To-animation not defined.
return false;
}
} else {
if (!toStr.isEmpty()) {
// From-to-animation.
parseNumberTriplet(vals, s = fromStr.constData());
parseNumberTriplet(vals, s = toStr.constData());
} else if (!byStr.isEmpty()) {
// From-by-animation.
parseNumberTriplet(vals, s = fromStr.constData());
parseNumberTriplet(vals, s = byStr.constData());
for (int i = vals.size() - 3; i < vals.size(); ++i)
vals[i] += vals[i - 3];
} else {
return false;
}
}
} else {
const QChar *s = values.constData();
while (s && *s != QLatin1Char(0)) {
parseNumberTriplet(vals, s);
if (*s == QLatin1Char(0))
break;
++s;
}
}
int ms = 1000;
beginStr = beginStr.trimmed();
if (beginStr.endsWith(QLatin1String("ms"))) {
beginStr.chop(2);
ms = 1;
} else if (beginStr.endsWith(QLatin1String("s"))) {
beginStr.chop(1);
}
int begin = static_cast<int>(toDouble(beginStr) * ms);
durStr = durStr.trimmed();
if (durStr.endsWith(QLatin1String("ms"))) {
durStr.chop(2);
ms = 1;
} else if (durStr.endsWith(QLatin1String("s"))) {
durStr.chop(1);
ms = 1000;
}
int end = static_cast<int>(toDouble(durStr)*ms) + begin;
QSvgAnimateTransform::TransformType type = QSvgAnimateTransform::Empty;
if (typeStr == QLatin1String("translate")) {
type = QSvgAnimateTransform::Translate;
} else if (typeStr == QLatin1String("scale")) {
type = QSvgAnimateTransform::Scale;
} else if (typeStr == QLatin1String("rotate")) {
type = QSvgAnimateTransform::Rotate;
} else if (typeStr == QLatin1String("skewX")) {
type = QSvgAnimateTransform::SkewX;
} else if (typeStr == QLatin1String("skewY")) {
type = QSvgAnimateTransform::SkewY;
} else {
return false;
}
QSvgAnimateTransform *anim = new QSvgAnimateTransform(begin, end, 0);
anim->setArgs(type, additive, vals);
anim->setFreeze(fillStr == QLatin1String("freeze"));
anim->setRepeatCount(
(repeatStr == QLatin1String("indefinite"))? -1 :
(repeatStr == QLatin1String(""))? 1 : toDouble(repeatStr));
parent->appendStyleProperty(anim, someId(attributes));
parent->document()->setAnimated(true);
handler->setAnimPeriod(begin, end);
return true;
}
static QSvgNode * createAnimationNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return 0;
}
static bool parseAudioNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createCircleNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString cx = attributes.value(QLatin1String("cx")).toString();
QString cy = attributes.value(QLatin1String("cy")).toString();
QString r = attributes.value(QLatin1String("r")).toString();
qreal ncx = toDouble(cx);
qreal ncy = toDouble(cy);
qreal nr = toDouble(r);
QRectF rect(ncx-nr, ncy-nr, nr*2, nr*2);
QSvgNode *circle = new QSvgCircle(parent, rect);
return circle;
}
static QSvgNode *createDefsNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgDefs *defs = new QSvgDefs(parent);
return defs;
}
static bool parseDescNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseDiscardNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createEllipseNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString cx = attributes.value(QLatin1String("cx")).toString();
QString cy = attributes.value(QLatin1String("cy")).toString();
QString rx = attributes.value(QLatin1String("rx")).toString();
QString ry = attributes.value(QLatin1String("ry")).toString();
qreal ncx = toDouble(cx);
qreal ncy = toDouble(cy);
qreal nrx = toDouble(rx);
qreal nry = toDouble(ry);
QRectF rect(ncx-nrx, ncy-nry, nrx*2, nry*2);
QSvgNode *ellipse = new QSvgEllipse(parent, rect);
return ellipse;
}
static QSvgStyleProperty *createFontNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString hax = attributes.value(QLatin1String("horiz-adv-x")).toString();
QString myId = someId(attributes);
qreal horizAdvX = toDouble(hax);
while (parent && parent->type() != QSvgNode::DOC) {
parent = parent->parent();
}
if (parent) {
QSvgTinyDocument *doc = static_cast<QSvgTinyDocument*>(parent);
QSvgFont *font = new QSvgFont(horizAdvX);
font->setFamilyName(myId);
if (!font->familyName().isEmpty()) {
if (!doc->svgFont(font->familyName()))
doc->addSvgFont(font);
}
return new QSvgFontStyle(font, doc);
}
return 0;
}
static bool parseFontFaceNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
if (parent->type() != QSvgStyleProperty::FONT) {
return false;
}
QSvgFontStyle *style = static_cast<QSvgFontStyle*>(parent);
QSvgFont *font = style->svgFont();
QString name = attributes.value(QLatin1String("font-family")).toString();
QString unitsPerEmStr = attributes.value(QLatin1String("units-per-em")).toString();
qreal unitsPerEm = toDouble(unitsPerEmStr);
if (!unitsPerEm)
unitsPerEm = 1000;
if (!name.isEmpty())
font->setFamilyName(name);
font->setUnitsPerEm(unitsPerEm);
if (!font->familyName().isEmpty())
if (!style->doc()->svgFont(font->familyName()))
style->doc()->addSvgFont(font);
return true;
}
static bool parseFontFaceNameNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
if (parent->type() != QSvgStyleProperty::FONT) {
return false;
}
QSvgFontStyle *style = static_cast<QSvgFontStyle*>(parent);
QSvgFont *font = style->svgFont();
QString name = attributes.value(QLatin1String("name")).toString();
if (!name.isEmpty())
font->setFamilyName(name);
if (!font->familyName().isEmpty())
if (!style->doc()->svgFont(font->familyName()))
style->doc()->addSvgFont(font);
return true;
}
static bool parseFontFaceSrcNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseFontFaceUriNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseForeignObjectNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createGNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgG *node = new QSvgG(parent);
return node;
}
static bool parseGlyphNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
if (parent->type() != QSvgStyleProperty::FONT) {
return false;
}
QSvgFontStyle *style = static_cast<QSvgFontStyle*>(parent);
QSvgFont *font = style->svgFont();
createSvgGlyph(font, attributes);
return true;
}
static bool parseHandlerNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseHkernNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createImageNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString x = attributes.value(QLatin1String("x")).toString();
QString y = attributes.value(QLatin1String("y")).toString();
QString width = attributes.value(QLatin1String("width")).toString();
QString height = attributes.value(QLatin1String("height")).toString();
QString filename = attributes.value(QLatin1String("xlink:href")).toString();
qreal nx = toDouble(x);
qreal ny = toDouble(y);
QSvgHandler::LengthType type;
qreal nwidth = parseLength(width, type, handler);
nwidth = convertToPixels(nwidth, true, type);
qreal nheight = parseLength(height, type, handler);
nheight = convertToPixels(nheight, false, type);
filename = filename.trimmed();
QImage image;
if (filename.startsWith(QLatin1String("data"))) {
int idx = filename.lastIndexOf(QLatin1String("base64,"));
if (idx != -1) {
idx += 7;
QString dataStr = filename.mid(idx);
QByteArray data = QByteArray::fromBase64(dataStr.toAscii());
image = QImage::fromData(data);
} else {
qDebug()<<"QSvgHandler::createImageNode: Unrecognized inline image format!";
}
} else
image = QImage(filename);
if (image.isNull()) {
qDebug()<<"couldn't create image from "<<filename;
return 0;
}
if (image.format() == QImage::Format_ARGB32)
image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
QSvgNode *img = new QSvgImage(parent,
image,
QRect(int(nx),
int(ny),
int(nwidth),
int(nheight)));
return img;
}
static QSvgNode *createLineNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString x1 = attributes.value(QLatin1String("x1")).toString();
QString y1 = attributes.value(QLatin1String("y1")).toString();
QString x2 = attributes.value(QLatin1String("x2")).toString();
QString y2 = attributes.value(QLatin1String("y2")).toString();
qreal nx1 = toDouble(x1);
qreal ny1 = toDouble(y1);
qreal nx2 = toDouble(x2);
qreal ny2 = toDouble(y2);
QLineF lineBounds(nx1, ny1, nx2, ny2);
QSvgNode *line = new QSvgLine(parent, lineBounds);
return line;
}
static void parseBaseGradient(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgGradientStyle *gradProp,
QSvgHandler *handler)
{
QString link = attributes.value(QLatin1String("xlink:href")).toString();
QStringRef trans = attributes.value(QLatin1String("gradientTransform"));
QString spread = attributes.value(QLatin1String("spreadMethod")).toString();
QString units = attributes.value(QLatin1String("gradientUnits")).toString();
QStringRef colorStr = attributes.value(QLatin1String("color"));
QStringRef colorOpacityStr = attributes.value(QLatin1String("color-opacity"));
QColor color;
if (constructColor(colorStr, colorOpacityStr, color, handler)) {
handler->popColor();
handler->pushColor(color);
}
QMatrix matrix;
QGradient *grad = gradProp->qgradient();
if (!link.isEmpty()) {
QSvgStyleProperty *prop = node->styleProperty(link);
//qDebug()<<"inherited "<<prop<<" ("<<link<<")";
if (prop && prop->type() == QSvgStyleProperty::GRADIENT) {
QSvgGradientStyle *inherited =
static_cast<QSvgGradientStyle*>(prop);
if (!inherited->stopLink().isEmpty()) {
gradProp->setStopLink(inherited->stopLink(), handler->document());
} else {
grad->setStops(inherited->qgradient()->stops());
gradProp->setGradientStopsSet(inherited->gradientStopsSet());
}
matrix = inherited->qmatrix();
} else {
gradProp->setStopLink(link, handler->document());
}
}
if (!trans.isEmpty()) {
matrix = parseTransformationMatrix(trans);
gradProp->setMatrix(matrix);
} else if (!matrix.isIdentity()) {
gradProp->setMatrix(matrix);
}
if (!spread.isEmpty()) {
if (spread == QLatin1String("pad")) {
grad->setSpread(QGradient::PadSpread);
} else if (spread == QLatin1String("reflect")) {
grad->setSpread(QGradient::ReflectSpread);
} else if (spread == QLatin1String("repeat")) {
grad->setSpread(QGradient::RepeatSpread);
}
}
if (units.isEmpty() || units == QLatin1String("objectBoundingBox")) {
grad->setCoordinateMode(QGradient::ObjectBoundingMode);
}
}
static QSvgStyleProperty *createLinearGradientNode(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString x1 = attributes.value(QLatin1String("x1")).toString();
QString y1 = attributes.value(QLatin1String("y1")).toString();
QString x2 = attributes.value(QLatin1String("x2")).toString();
QString y2 = attributes.value(QLatin1String("y2")).toString();
qreal nx1 = 0.0;
qreal ny1 = 0.0;
qreal nx2 = 1.0;
qreal ny2 = 0.0;
if (!x1.isEmpty())
nx1 = convertToNumber(x1, handler);
if (!y1.isEmpty())
ny1 = convertToNumber(y1, handler);
if (!x2.isEmpty())
nx2 = convertToNumber(x2, handler);
if (!y2.isEmpty())
ny2 = convertToNumber(y2, handler);
QSvgNode *itr = node;
while (itr && itr->type() != QSvgNode::DOC) {
itr = itr->parent();
}
QLinearGradient *grad = new QLinearGradient(nx1, ny1, nx2, ny2);
grad->setInterpolationMode(QGradient::ComponentInterpolation);
QSvgGradientStyle *prop = new QSvgGradientStyle(grad);
parseBaseGradient(node, attributes, prop, handler);
return prop;
}
static bool parseMetadataNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseMissingGlyphNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
if (parent->type() != QSvgStyleProperty::FONT) {
return false;
}
QSvgFontStyle *style = static_cast<QSvgFontStyle*>(parent);
QSvgFont *font = style->svgFont();
createSvgGlyph(font, attributes);
return true;
}
static bool parseMpathNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createPathNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QStringRef data = attributes.value(QLatin1String("d"));
QPainterPath qpath;
qpath.setFillRule(Qt::WindingFill);
//XXX do error handling
parsePathDataFast(data, qpath);
QSvgNode *path = new QSvgPath(parent, qpath);
return path;
}
static QSvgNode *createPolygonNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString pointsStr = attributes.value(QLatin1String("points")).toString();
//same QPolygon parsing is in createPolylineNode
const QChar *s = pointsStr.constData();
QVector<qreal> points = parseNumbersList(s);
QPolygonF poly(points.count()/2);
for (int i = 0; i < poly.size(); ++i)
poly[i] = QPointF(points.at(2 * i), points.at(2 * i + 1));
QSvgNode *polygon = new QSvgPolygon(parent, poly);
return polygon;
}
static QSvgNode *createPolylineNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString pointsStr = attributes.value(QLatin1String("points")).toString();
//same QPolygon parsing is in createPolygonNode
const QChar *s = pointsStr.constData();
QVector<qreal> points = parseNumbersList(s);
QPolygonF poly(points.count()/2);
for (int i = 0; i < poly.size(); ++i)
poly[i] = QPointF(points.at(2 * i), points.at(2 * i + 1));
QSvgNode *line = new QSvgPolyline(parent, poly);
return line;
}
static bool parsePrefetchNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgStyleProperty *createRadialGradientNode(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString cx = attributes.value(QLatin1String("cx")).toString();
QString cy = attributes.value(QLatin1String("cy")).toString();
QString r = attributes.value(QLatin1String("r")).toString();
QString fx = attributes.value(QLatin1String("fx")).toString();
QString fy = attributes.value(QLatin1String("fy")).toString();
qreal ncx = 0.5;
qreal ncy = 0.5;
qreal nr = 0.5;
if (!cx.isEmpty())
ncx = toDouble(cx);
if (!cy.isEmpty())
ncy = toDouble(cy);
if (!r.isEmpty())
nr = toDouble(r);
qreal nfx = ncx;
if (!fx.isEmpty())
nfx = toDouble(fx);
qreal nfy = ncy;
if (!fy.isEmpty())
nfy = toDouble(fy);
QRadialGradient *grad = new QRadialGradient(ncx, ncy, nr, nfx, nfy);
grad->setInterpolationMode(QGradient::ComponentInterpolation);
QSvgGradientStyle *prop = new QSvgGradientStyle(grad);
parseBaseGradient(node, attributes, prop, handler);
return prop;
}
static QSvgNode *createRectNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString x = attributes.value(QLatin1String("x")).toString();
QString y = attributes.value(QLatin1String("y")).toString();
QString width = attributes.value(QLatin1String("width")).toString();
QString height = attributes.value(QLatin1String("height")).toString();
QString rx = attributes.value(QLatin1String("rx")).toString();
QString ry = attributes.value(QLatin1String("ry")).toString();
QSvgHandler::LengthType type;
qreal nwidth = parseLength(width, type, handler);
nwidth = convertToPixels(nwidth, true, type);
qreal nheight = parseLength(height, type, handler);
nheight = convertToPixels(nheight, true, type);
qreal nrx = toDouble(rx);
qreal nry = toDouble(ry);
QRectF bounds(toDouble(x), toDouble(y),
nwidth, nheight);
//9.2 The 'rect' element clearly specifies it
// but the case might in fact be handled because
// we draw rounded rectangles differently
if (nrx > bounds.width()/2)
nrx = bounds.width()/2;
if (nry > bounds.height()/2)
nry = bounds.height()/2;
if (!rx.isEmpty() && ry.isEmpty())
nry = nrx;
else if (!ry.isEmpty() && rx.isEmpty())
nrx = nry;
//we draw rounded rect from 0...99
//svg from 0...bounds.width()/2 so we're adjusting the
//coordinates
nrx *= (100/(bounds.width()/2));
nry *= (100/(bounds.height()/2));
QSvgNode *rect = new QSvgRect(parent, bounds,
int(nrx),
int(nry));
return rect;
}
static bool parseScriptNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseSetNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgStyleProperty *createSolidColorNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
QStringRef solidColorStr = attributes.value(QLatin1String("solid-color"));
QStringRef solidOpacityStr = attributes.value(QLatin1String("solid-opacity"));
if (solidOpacityStr.isEmpty())
solidOpacityStr = attributes.value(QLatin1String("opacity"));
QColor color;
if (!constructColor(solidColorStr, solidOpacityStr, color, handler))
return 0;
QSvgSolidColorStyle *style = new QSvgSolidColorStyle(color);
return style;
}
static bool parseStopNode(QSvgStyleProperty *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
if (parent->type() != QSvgStyleProperty::GRADIENT)
return false;
QString nodeIdStr = someId(attributes);
QString xmlClassStr = attributes.value(QLatin1String("class")).toString();
//### nasty hack because stop gradients are not in the rendering tree
// we force a dummy node with the same id and class into a rendering
// tree to figure out whether the selector has a style for it
// QSvgStyleSelector should be coded in a way that could avoid it
QSvgAnimation anim;
anim.setNodeId(nodeIdStr);
anim.setXmlClass(xmlClassStr);
QCss::StyleSelector::NodePtr cssNode;
cssNode.ptr = &anim;
QVector<QCss::Declaration> decls = handler->selector()->declarationsForNode(cssNode);
QXmlStreamAttributes xmlAttr = attributes;
for (int i = 0; i < decls.count(); ++i) {
const QCss::Declaration &decl = decls.at(i);
if (decl.d->property.isEmpty())
continue;
if (decl.d->values.count() != 1)
continue;
QCss::Value val = decl.d->values.first();
QString valueStr = val.toString();
if (val.type == QCss::Value::Uri) {
valueStr.prepend(QLatin1String("url("));
valueStr.append(QLatin1Char(')'));
}
xmlAttr.append(QString(), decl.d->property, valueStr);
}
QSvgAttributes attrs(xmlAttr, handler);
QSvgGradientStyle *style =
static_cast<QSvgGradientStyle*>(parent);
QString offsetStr = attrs.offset.toString();
QStringRef colorStr = attrs.stopColor;
QColor color;
bool ok = true;
qreal offset = convertToNumber(offsetStr, handler, &ok);
if (!ok)
offset = 0.0;
QString black = QString::fromLatin1("#000000");
if (colorStr.isEmpty()) {
colorStr = QStringRef(&black);
}
constructColor(colorStr, attrs.stopOpacity, color, handler);
QGradient *grad = style->qgradient();
offset = qMin(qreal(1), qMax(qreal(0), offset)); // Clamp to range [0, 1]
QGradientStops stops;
if (style->gradientStopsSet()) {
stops = grad->stops();
// If the stop offset equals the one previously added, add an epsilon to make it greater.
if (offset <= stops.back().first)
offset = stops.back().first + FLT_EPSILON;
}
// If offset is greater than one, it must be clamped to one.
if (offset > 1.0) {
if ((stops.size() == 1) || (stops.at(stops.size() - 2).first < 1.0 - FLT_EPSILON)) {
stops.back().first = 1.0 - FLT_EPSILON;
grad->setStops(stops);
}
offset = 1.0;
}
grad->setColorAt(offset, color);
style->setGradientStopsSet(true);
return true;
}
static bool parseStyleNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(parent);
QString type = attributes.value(QLatin1String("type")).toString();
type = type.toLower();
if (type == QLatin1String("text/css")) {
handler->setInStyle(true);
}
return true;
}
static QSvgNode *createSvgNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
QString baseProfile = attributes.value(QLatin1String("baseProfile")).toString();
#if 0
if (baseProfile.isEmpty() && baseProfile != QLatin1String("tiny")) {
qWarning("Profile is %s while we only support tiny!",
qPrintable(baseProfile));
}
#endif
QSvgTinyDocument *node = new QSvgTinyDocument();
QString widthStr = attributes.value(QLatin1String("width")).toString();
QString heightStr = attributes.value(QLatin1String("height")).toString();
QString viewBoxStr = attributes.value(QLatin1String("viewBox")).toString();
QSvgHandler::LengthType type = QSvgHandler::LT_PX; // FIXME: is the default correct?
qreal width = 0;
if (!widthStr.isEmpty()) {
width = parseLength(widthStr, type, handler);
if (type != QSvgHandler::LT_PT)
width = convertToPixels(width, true, type);
node->setWidth(int(width), type == QSvgHandler::LT_PERCENT);
}
qreal height = 0;
if (!heightStr.isEmpty()) {
height = parseLength(heightStr, type, handler);
if (type != QSvgHandler::LT_PT)
height = convertToPixels(height, false, type);
node->setHeight(int(height), type == QSvgHandler::LT_PERCENT);
}
QStringList viewBoxValues;
if (!viewBoxStr.isEmpty()) {
viewBoxStr = viewBoxStr.replace(QLatin1Char(' '), QLatin1Char(','));
viewBoxStr = viewBoxStr.replace(QLatin1Char('\r'), QLatin1Char(','));
viewBoxStr = viewBoxStr.replace(QLatin1Char('\n'), QLatin1Char(','));
viewBoxStr = viewBoxStr.replace(QLatin1Char('\t'), QLatin1Char(','));
viewBoxValues = viewBoxStr.split(QLatin1Char(','), QString::SkipEmptyParts);
}
if (viewBoxValues.count() == 4) {
QString xStr = viewBoxValues.at(0).trimmed();
QString yStr = viewBoxValues.at(1).trimmed();
QString widthStr = viewBoxValues.at(2).trimmed();
QString heightStr = viewBoxValues.at(3).trimmed();
QSvgHandler::LengthType lt;
qreal x = parseLength(xStr, lt, handler);
qreal y = parseLength(yStr, lt, handler);
qreal w = parseLength(widthStr, lt, handler);
qreal h = parseLength(heightStr, lt, handler);
node->setViewBox(QRectF(x, y, w, h));
} else if (width && height) {
if (type == QSvgHandler::LT_PT) {
width = convertToPixels(width, false, type);
height = convertToPixels(height, false, type);
}
node->setViewBox(QRectF(0, 0, width, height));
}
handler->setDefaultCoordinateSystem(QSvgHandler::LT_PX);
return node;
}
static QSvgNode *createSwitchNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgSwitch *node = new QSvgSwitch(parent);
return node;
}
static bool parseTbreakNode(QSvgNode *parent,
const QXmlStreamAttributes &,
QSvgHandler *)
{
if (parent->type() != QSvgNode::TEXTAREA)
return false;
static_cast<QSvgText*>(parent)->addLineBreak();
return true;
}
static QSvgNode *createTextNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString x = attributes.value(QLatin1String("x")).toString();
QString y = attributes.value(QLatin1String("y")).toString();
//### editable and rotate not handled
QSvgHandler::LengthType type;
qreal nx = parseLength(x, type, handler);
qreal ny = parseLength(y, type, handler);
QSvgNode *text = new QSvgText(parent, QPointF(nx, ny));
return text;
}
static QSvgNode *createTextAreaNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QSvgText *node = static_cast<QSvgText *>(createTextNode(parent, attributes, handler));
if (node) {
QSvgHandler::LengthType type;
qreal width = parseLength(attributes.value(QLatin1String("width")).toString(), type, handler);
qreal height = parseLength(attributes.value(QLatin1String("height")).toString(), type, handler);
node->setTextArea(QSizeF(width, height));
}
return node;
}
static QSvgNode *createTspanNode(QSvgNode *parent,
const QXmlStreamAttributes &,
QSvgHandler *)
{
return new QSvgTspan(parent);
}
static bool parseTitleNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createUseNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QString linkId = attributes.value(QLatin1String("xlink:href")).toString().remove(0, 1);
QString xStr = attributes.value(QLatin1String("x")).toString();
QString yStr = attributes.value(QLatin1String("y")).toString();
QSvgStructureNode *group = 0;
if (linkId.isEmpty())
linkId = attributes.value(QLatin1String("href")).toString().remove(0, 1);
switch (parent->type()) {
case QSvgNode::DOC:
case QSvgNode::DEFS:
case QSvgNode::G:
case QSvgNode::SWITCH:
group = static_cast<QSvgStructureNode*>(parent);
break;
default:
break;
}
if (group) {
QSvgNode *link = group->scopeNode(linkId);
if (link) {
QPointF pt;
if (!xStr.isNull() || !yStr.isNull()) {
QSvgHandler::LengthType type;
qreal nx = parseLength(xStr, type, handler);
nx = convertToPixels(nx, true, type);
qreal ny = parseLength(yStr, type, handler);
ny = convertToPixels(ny, true, type);
pt = QPointF(nx, ny);
}
//delay link resolving till the first draw call on
//use nodes, link 2might have not been created yet
QSvgUse *node = new QSvgUse(pt, parent, link);
return node;
}
}
qWarning("link %s hasn't been detected!", qPrintable(linkId));
return 0;
}
static QSvgNode *createVideoNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return 0;
}
typedef QSvgNode *(*FactoryMethod)(QSvgNode *, const QXmlStreamAttributes &, QSvgHandler *);
static FactoryMethod findGroupFactory(const QString &name)
{
if (name.isEmpty())
return 0;
QStringRef ref(&name, 1, name.length() - 1);
switch (name.at(0).unicode()) {
case 'd':
if (ref == QLatin1String("efs")) return createDefsNode;
break;
case 'g':
if (ref.isEmpty()) return createGNode;
break;
case 's':
if (ref == QLatin1String("vg")) return createSvgNode;
if (ref == QLatin1String("witch")) return createSwitchNode;
break;
default:
break;
}
return 0;
}
static FactoryMethod findGraphicsFactory(const QString &name)
{
if (name.isEmpty())
return 0;
QStringRef ref(&name, 1, name.length() - 1);
switch (name.at(0).unicode()) {
case 'a':
if (ref == QLatin1String("nimation")) return createAnimationNode;
break;
case 'c':
if (ref == QLatin1String("ircle")) return createCircleNode;
break;
case 'e':
if (ref == QLatin1String("llipse")) return createEllipseNode;
break;
case 'i':
if (ref == QLatin1String("mage")) return createImageNode;
break;
case 'l':
if (ref == QLatin1String("ine")) return createLineNode;
break;
case 'p':
if (ref == QLatin1String("ath")) return createPathNode;
if (ref == QLatin1String("olygon")) return createPolygonNode;
if (ref == QLatin1String("olyline")) return createPolylineNode;
break;
case 'r':
if (ref == QLatin1String("ect")) return createRectNode;
break;
case 't':
if (ref == QLatin1String("ext")) return createTextNode;
if (ref == QLatin1String("extArea")) return createTextAreaNode;
if (ref == QLatin1String("span")) return createTspanNode;
break;
case 'u':
if (ref == QLatin1String("se")) return createUseNode;
break;
case 'v':
if (ref == QLatin1String("ideo")) return createVideoNode;
break;
default:
break;
}
return 0;
}
typedef bool (*ParseMethod)(QSvgNode *, const QXmlStreamAttributes &, QSvgHandler *);
static ParseMethod findUtilFactory(const QString &name)
{
if (name.isEmpty())
return 0;
QStringRef ref(&name, 1, name.length() - 1);
switch (name.at(0).unicode()) {
case 'a':
if (ref.isEmpty()) return parseAnchorNode;
if (ref == QLatin1String("nimate")) return parseAnimateNode;
if (ref == QLatin1String("nimateColor")) return parseAnimateColorNode;
if (ref == QLatin1String("nimateMotion")) return parseAimateMotionNode;
if (ref == QLatin1String("nimateTransform")) return parseAnimateTransformNode;
if (ref == QLatin1String("udio")) return parseAudioNode;
break;
case 'd':
if (ref == QLatin1String("esc")) return parseDescNode;
if (ref == QLatin1String("iscard")) return parseDiscardNode;
break;
case 'f':
if (ref == QLatin1String("oreignObject")) return parseForeignObjectNode;
break;
case 'h':
if (ref == QLatin1String("andler")) return parseHandlerNode;
if (ref == QLatin1String("kern")) return parseHkernNode;
break;
case 'm':
if (ref == QLatin1String("etadata")) return parseMetadataNode;
if (ref == QLatin1String("path")) return parseMpathNode;
break;
case 'p':
if (ref == QLatin1String("refetch")) return parsePrefetchNode;
break;
case 's':
if (ref == QLatin1String("cript")) return parseScriptNode;
if (ref == QLatin1String("et")) return parseSetNode;
if (ref == QLatin1String("tyle")) return parseStyleNode;
break;
case 't':
if (ref == QLatin1String("break")) return parseTbreakNode;
if (ref == QLatin1String("itle")) return parseTitleNode;
break;
default:
break;
}
return 0;
}
typedef QSvgStyleProperty *(*StyleFactoryMethod)(QSvgNode *,
const QXmlStreamAttributes &,
QSvgHandler *);
static StyleFactoryMethod findStyleFactoryMethod(const QString &name)
{
if (name.isEmpty())
return 0;
QStringRef ref(&name, 1, name.length() - 1);
switch (name.at(0).unicode()) {
case 'f':
if (ref == QLatin1String("ont")) return createFontNode;
break;
case 'l':
if (ref == QLatin1String("inearGradient")) return createLinearGradientNode;
break;
case 'r':
if (ref == QLatin1String("adialGradient")) return createRadialGradientNode;
break;
case 's':
if (ref == QLatin1String("olidColor")) return createSolidColorNode;
break;
default:
break;
}
return 0;
}
typedef bool (*StyleParseMethod)(QSvgStyleProperty *,
const QXmlStreamAttributes &,
QSvgHandler *);
static StyleParseMethod findStyleUtilFactoryMethod(const QString &name)
{
if (name.isEmpty())
return 0;
QStringRef ref(&name, 1, name.length() - 1);
switch (name.at(0).unicode()) {
case 'f':
if (ref == QLatin1String("ont-face")) return parseFontFaceNode;
if (ref == QLatin1String("ont-face-name")) return parseFontFaceNameNode;
if (ref == QLatin1String("ont-face-src")) return parseFontFaceSrcNode;
if (ref == QLatin1String("ont-face-uri")) return parseFontFaceUriNode;
break;
case 'g':
if (ref == QLatin1String("lyph")) return parseGlyphNode;
break;
case 'm':
if (ref == QLatin1String("issing-glyph")) return parseMissingGlyphNode;
break;
case 's':
if (ref == QLatin1String("top")) return parseStopNode;
break;
default:
break;
}
return 0;
}
QSvgHandler::QSvgHandler(QIODevice *device) : xml(new QXmlStreamReader(device))
, m_ownsReader(true)
{
init();
}
QSvgHandler::QSvgHandler(const QByteArray &data) : xml(new QXmlStreamReader(data))
, m_ownsReader(true)
{
init();
}
QSvgHandler::QSvgHandler(QXmlStreamReader *const reader) : xml(reader)
, m_ownsReader(false)
{
init();
}
void QSvgHandler::init()
{
m_doc = 0;
m_style = 0;
m_animEnd = 0;
m_defaultCoords = LT_PX;
m_defaultPen = QPen(Qt::black, 1, Qt::SolidLine, Qt::FlatCap, Qt::SvgMiterJoin);
m_defaultPen.setMiterLimit(4);
parse();
}
void QSvgHandler::parse()
{
xml->setNamespaceProcessing(false);
m_selector = new QSvgStyleSelector;
m_inStyle = false;
bool done = false;
while (!xml->atEnd() && !done) {
switch (xml->readNext()) {
case QXmlStreamReader::StartElement:
// he we could/should verify the namespaces, and simply
// call m_skipNodes(Unknown) if we don't know the
// namespace. We do support http://www.w3.org/2000/svg
// but also http://www.w3.org/2000/svg-20000303-stylable
// And if the document uses an external dtd, the reported
// namespaceUri is empty. The only possible strategy at
// this point is to do what everyone else seems to do and
// ignore the reported namespaceUri completely.
if (!startElement(xml->name().toString(), xml->attributes())) {
delete m_doc;
m_doc = 0;
return;
}
break;
case QXmlStreamReader::EndElement:
endElement(xml->name());
// if we are using somebody else's qxmlstreamreader
// we should not read until the end of the stream
done = !m_ownsReader && (xml->name() == QLatin1String("svg"));
break;
case QXmlStreamReader::Characters:
characters(xml->text());
break;
case QXmlStreamReader::ProcessingInstruction:
processingInstruction(xml->processingInstructionTarget().toString(), xml->processingInstructionData().toString());
break;
default:
break;
}
}
resolveGradients(m_doc);
}
bool QSvgHandler::startElement(const QString &localName,
const QXmlStreamAttributes &attributes)
{
QSvgNode *node = 0;
pushColorCopy();
/* The xml:space attribute may appear on any element. We do
* a lookup by the qualified name here, but this is namespace aware, since
* the XML namespace can only be bound to prefix "xml." */
const QStringRef xmlSpace(attributes.value(QLatin1String("xml:space")));
if (xmlSpace.isNull()) {
// This element has no xml:space attribute.
m_whitespaceMode.push(m_whitespaceMode.isEmpty() ? QSvgText::Default : m_whitespaceMode.top());
} else if (xmlSpace == QLatin1String("preserve")) {
m_whitespaceMode.push(QSvgText::Preserve);
} else if (xmlSpace == QLatin1String("default")) {
m_whitespaceMode.push(QSvgText::Default);
} else {
qWarning() << QString::fromLatin1("\"%1\" is an invalid value for attribute xml:space. "
"Valid values are \"preserve\" and \"default\".").arg(xmlSpace.toString());
m_whitespaceMode.push(QSvgText::Default);
}
if (!m_doc && localName != QLatin1String("svg"))
return false;
if (FactoryMethod method = findGroupFactory(localName)) {
//group
node = method(m_doc ? m_nodes.top() : 0, attributes, this);
Q_ASSERT(node);
if (!m_doc) {
Q_ASSERT(node->type() == QSvgNode::DOC);
m_doc = static_cast<QSvgTinyDocument*>(node);
} else {
switch (m_nodes.top()->type()) {
case QSvgNode::DOC:
case QSvgNode::G:
case QSvgNode::DEFS:
case QSvgNode::SWITCH:
{
QSvgStructureNode *group =
static_cast<QSvgStructureNode*>(m_nodes.top());
group->addChild(node, someId(attributes));
}
break;
default:
break;
}
}
parseCoreNode(node, attributes);
cssStyleLookup(node, this, m_selector);
parseStyle(node, attributes, this);
} else if (FactoryMethod method = findGraphicsFactory(localName)) {
//rendering element
Q_ASSERT(!m_nodes.isEmpty());
node = method(m_nodes.top(), attributes, this);
if (node) {
switch (m_nodes.top()->type()) {
case QSvgNode::DOC:
case QSvgNode::G:
case QSvgNode::DEFS:
case QSvgNode::SWITCH:
{
QSvgStructureNode *group =
static_cast<QSvgStructureNode*>(m_nodes.top());
group->addChild(node, someId(attributes));
}
break;
case QSvgNode::TEXT:
case QSvgNode::TEXTAREA:
if (node->type() == QSvgNode::TSPAN) {
static_cast<QSvgText *>(m_nodes.top())->addTspan(static_cast<QSvgTspan *>(node));
} else {
qWarning("\'text\' or \'textArea\' element contains invalid element type.");
delete node;
node = 0;
}
break;
default:
qWarning("Could not add child element to parent element because the types are incorrect.");
delete node;
node = 0;
break;
}
if (node) {
parseCoreNode(node, attributes);
cssStyleLookup(node, this, m_selector);
parseStyle(node, attributes, this);
if (node->type() == QSvgNode::TEXT || node->type() == QSvgNode::TEXTAREA) {
static_cast<QSvgText *>(node)->setWhitespaceMode(m_whitespaceMode.top());
} else if (node->type() == QSvgNode::TSPAN) {
static_cast<QSvgTspan *>(node)->setWhitespaceMode(m_whitespaceMode.top());
}
}
}
} else if (ParseMethod method = findUtilFactory(localName)) {
Q_ASSERT(!m_nodes.isEmpty());
if (!method(m_nodes.top(), attributes, this)) {
qWarning("Problem parsing %s", qPrintable(localName));
}
} else if (StyleFactoryMethod method = findStyleFactoryMethod(localName)) {
QSvgStyleProperty *prop = method(m_nodes.top(), attributes, this);
if (prop) {
m_style = prop;
m_nodes.top()->appendStyleProperty(prop, someId(attributes));
} else {
qWarning("Could not parse node: %s", qPrintable(localName));
}
} else if (StyleParseMethod method = findStyleUtilFactoryMethod(localName)) {
if (m_style) {
if (!method(m_style, attributes, this)) {
qWarning("Problem parsing %s", qPrintable(localName));
}
}
} else {
//qWarning()<<"Skipping unknown element!"<<namespaceURI<<"::"<<localName;
m_skipNodes.push(Unknown);
return true;
}
if (node) {
m_nodes.push(node);
m_skipNodes.push(Graphics);
} else {
//qDebug()<<"Skipping "<<localName;
m_skipNodes.push(Style);
}
return true;
}
bool QSvgHandler::endElement(const QStringRef &localName)
{
CurrentNode node = m_skipNodes.top();
m_skipNodes.pop();
m_whitespaceMode.pop();
popColor();
if (node == Unknown) {
return true;
}
if (m_inStyle && localName == QLatin1String("style"))
m_inStyle = false;
if (node == Graphics)
m_nodes.pop();
else if (m_style && !m_skipNodes.isEmpty() && m_skipNodes.top() != Style)
m_style = 0;
return true;
}
void QSvgHandler::resolveGradients(QSvgNode *node)
{
if (!node || (node->type() != QSvgNode::DOC && node->type() != QSvgNode::G
&& node->type() != QSvgNode::DEFS && node->type() != QSvgNode::SWITCH)) {
return;
}
QSvgStructureNode *structureNode = static_cast<QSvgStructureNode *>(node);
QList<QSvgNode *> ren = structureNode->renderers();
for (QList<QSvgNode *>::iterator it = ren.begin(); it != ren.end(); ++it) {
QSvgFillStyle *fill = static_cast<QSvgFillStyle *>((*it)->styleProperty(QSvgStyleProperty::FILL));
if (fill && !fill->isGradientResolved()) {
QString id = fill->gradientId();
QSvgFillStyleProperty *style = structureNode->styleProperty(id);
if (style) {
fill->setFillStyle(style);
} else {
qWarning("Could not resolve property : %s", qPrintable(id));
fill->setBrush(Qt::NoBrush);
}
}
QSvgStrokeStyle *stroke = static_cast<QSvgStrokeStyle *>((*it)->styleProperty(QSvgStyleProperty::STROKE));
if (stroke && !stroke->isGradientResolved()) {
QString id = stroke->gradientId();
QSvgFillStyleProperty *style = structureNode->styleProperty(id);
if (style) {
stroke->setStyle(style);
} else {
qWarning("Could not resolve property : %s", qPrintable(id));
stroke->setStroke(Qt::NoBrush);
}
}
resolveGradients(*it);
}
}
bool QSvgHandler::characters(const QStringRef &str)
{
if (m_inStyle) {
QString css = str.toString();
QCss::StyleSheet sheet;
QCss::Parser(css).parse(&sheet);
m_selector->styleSheets.append(sheet);
return true;
} else if (m_skipNodes.isEmpty() || m_skipNodes.top() == Unknown || m_nodes.isEmpty())
return true;
if (m_nodes.top()->type() == QSvgNode::TEXT || m_nodes.top()->type() == QSvgNode::TEXTAREA) {
static_cast<QSvgText*>(m_nodes.top())->addText(str.toString());
} else if (m_nodes.top()->type() == QSvgNode::TSPAN) {
static_cast<QSvgTspan*>(m_nodes.top())->addText(str.toString());
}
return true;
}
QSvgTinyDocument * QSvgHandler::document() const
{
return m_doc;
}
QSvgHandler::LengthType QSvgHandler::defaultCoordinateSystem() const
{
return m_defaultCoords;
}
void QSvgHandler::setDefaultCoordinateSystem(LengthType type)
{
m_defaultCoords = type;
}
void QSvgHandler::pushColor(const QColor &color)
{
m_colorStack.push(color);
m_colorTagCount.push(1);
}
void QSvgHandler::pushColorCopy()
{
if (m_colorTagCount.count())
++m_colorTagCount.top();
else
pushColor(Qt::black);
}
void QSvgHandler::popColor()
{
if (m_colorTagCount.count()) {
if (!--m_colorTagCount.top()) {
m_colorStack.pop();
m_colorTagCount.pop();
}
}
}
QColor QSvgHandler::currentColor() const
{
if (!m_colorStack.isEmpty())
return m_colorStack.top();
else
return QColor(0, 0, 0);
}
void QSvgHandler::setInStyle(bool b)
{
m_inStyle = b;
}
bool QSvgHandler::inStyle() const
{
return m_inStyle;
}
QSvgStyleSelector * QSvgHandler::selector() const
{
return m_selector;
}
bool QSvgHandler::processingInstruction(const QString &target, const QString &data)
{
if (target == QLatin1String("xml-stylesheet")) {
QRegExp rx(QLatin1String("type=\\\"(.+)\\\""));
rx.setMinimal(true);
bool isCss = false;
int pos = 0;
while ((pos = rx.indexIn(data, pos)) != -1) {
QString type = rx.cap(1);
if (type.toLower() == QLatin1String("text/css")) {
isCss = true;
}
pos += rx.matchedLength();
}
if (isCss) {
QRegExp rx(QLatin1String("href=\\\"(.+)\\\""));
rx.setMinimal(true);
pos = 0;
pos = rx.indexIn(data, pos);
QString addr = rx.cap(1);
QFileInfo fi(addr);
//qDebug()<<"External CSS file "<<fi.absoluteFilePath()<<fi.exists();
if (fi.exists()) {
QFile file(fi.absoluteFilePath());
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
return true;
}
QByteArray cssData = file.readAll();
QString css = QString::fromUtf8(cssData);
QCss::StyleSheet sheet;
QCss::Parser(css).parse(&sheet);
m_selector->styleSheets.append(sheet);
}
}
}
return true;
}
void QSvgHandler::setAnimPeriod(int start, int end)
{
Q_UNUSED(start);
m_animEnd = qMax(end, m_animEnd);
}
int QSvgHandler::animationDuration() const
{
return m_animEnd;
}
QSvgHandler::~QSvgHandler()
{
delete m_selector;
m_selector = 0;
if(m_ownsReader)
delete xml;
}
QT_END_NAMESPACE
#endif // QT_NO_SVG