bool DomConvenience::variantToElement(const QVariant& v, QDomElement& e)
{
bool ok = true;
clearAttributes(e);
switch (v.type())
{
case QVariant::String:
e.setTagName("string");
e.setAttribute("value", v.toString().utf8());
break;
case QVariant::CString:
e.setTagName("string");
e.setAttribute("value", v.toCString());
break;
case QVariant::Int:
e.setTagName("int");
e.setAttribute("value", v.toInt());
break;
case QVariant::UInt:
e.setTagName("uint");
e.setAttribute("value", v.toUInt());
break;
case QVariant::Double:
e.setTagName("double");
e.setAttribute("value", v.toDouble());
break;
case QVariant::Bool:
e.setTagName("bool");
e.setAttribute("value", boolString(v.toBool()));
break;
case QVariant::Color:
{
e.setTagName("color");
QColor color = v.toColor();
e.setAttribute("red", color.red());
e.setAttribute("green", color.green());
e.setAttribute("blue", color.blue());
}
break;
case QVariant::Pen:
{
e.setTagName("pen");
QPen pen = v.toPen();
e.setAttribute("red", pen.color().red());
e.setAttribute("green", pen.color().green());
e.setAttribute("blue", pen.color().blue());
e.setAttribute("style", pen.style());
e.setAttribute("cap", pen.capStyle());
e.setAttribute("join", pen.joinStyle());
}
break;
case QVariant::Brush:
{
e.setTagName("brush");
QBrush brush = v.toBrush();
e.setAttribute("red", brush.color().red());
e.setAttribute("green", brush.color().green());
e.setAttribute("blue", brush.color().blue());
e.setAttribute("style", brush.style());
}
break;
case QVariant::Point:
{
e.setTagName("point");
QPoint point = v.toPoint();
e.setAttribute("x", point.x());
e.setAttribute("y", point.y());
}
break;
case QVariant::Rect:
{
e.setTagName("rect");
QRect rect = v.toRect();
e.setAttribute("x", rect.x());
e.setAttribute("y", rect.y());
e.setAttribute("width", rect.width());
e.setAttribute("height", rect.height());
}
break;
case QVariant::Size:
{
e.setTagName("size");
QSize qsize = v.toSize();
e.setAttribute("width", qsize.width());
e.setAttribute("height", qsize.height());
}
break;
case QVariant::Font:
{
e.setTagName("font");
QFont f(v.toFont());
e.setAttribute("family", f.family());
e.setAttribute("pointsize", f.pointSize());
e.setAttribute("bold", boolString(f.bold()));
e.setAttribute("italic", boolString(f.italic()));
e.setAttribute("underline", boolString(f.underline()));
e.setAttribute("strikeout", boolString(f.strikeOut()));
}
break;
case QVariant::SizePolicy:
{
e.setTagName("sizepolicy");
QSizePolicy sp(v.toSizePolicy());
e.setAttribute("hsizetype", sp.horData());
e.setAttribute("vsizetype", sp.verData());
#if (QT_VERSION >= 300)
e.setAttribute("horstretch", sp.horStretch());
e.setAttribute("verstretch", sp.verStretch());
#endif
}
break;
case QVariant::Cursor:
e.setTagName("cursor");
e.setAttribute("shape", v.toCursor().shape());
break;
case QVariant::StringList:
{
e.setTagName("stringlist");
uint j;
QDomNode n;
QDomNodeList stringNodeList = e.elementsByTagName("string");
QDomElement stringElem;
QStringList stringList = v.toStringList();
QStringList::Iterator it = stringList.begin();
for (j = 0;
((j < stringNodeList.length()) && (it != stringList.end()));
j++)
{
// get the current string element
stringElem = stringNodeList.item(j).toElement();
// set it to the current string
variantToElement(QVariant(*it), stringElem);
// iterate to the next string
++it;
}
// more nodes in previous stringlist then current, remove excess nodes
if (stringNodeList.count() > stringList.count())
{
while (j < stringNodeList.count())
e.removeChild(stringNodeList.item(j).toElement());
}
else if (j <stringList.count())
{
while (it != stringList.end())
{
// create a new element
stringElem = m_doc.createElement("string");
// set it to the currentstring
variantToElement(QVariant(*it), stringElem);
// append it to the current element
e.appendChild(stringElem);
// iterate to the next string
++it;
}
}
}
break;
#if QT_VERSION >= 300
case QVariant::KeySequence:
e.setTagName("key");
e.setAttribute("sequence", (QString)v.toKeySequence());
break;
#endif
case QVariant::ByteArray: // this is only for [u]int64_t
{
e.setTagName("uint64");
QByteArray ba = v.toByteArray();
// make sure this only handles [u]int64_t's
if (ba.size() != sizeof(uint64_t))
{
qWarning("Don't know how to persist variant of type: %s (%d) (size=%d)!",
v.typeName(), v.type(), ba.size());
ok = false;
break;
}
// convert the data back into a uint64_t
uint64_t num = *(uint64_t*)ba.data();
QChar buff[33];
QChar* p = &buff[32];
const char* digitSet = "0123456789abcdef";
int len = 0;
// construct the string
do
{
*--p = digitSet[((int)(num%16))];
num = num >> 4; // divide by 16
len++;
} while ( num );
// store it in a QString
QString storage;
storage.setUnicode(p, len);
// set the value
e.setAttribute("value", storage);
}
break;
#if 0
case QVariant::List:
case QVaraint::Map:
#endif
default:
qWarning("Don't know how to persist variant of type: %s (%d)!",
v.typeName(), v.type());
ok = false;
break;
}
return ok;
}
bool DomConvenience::variantToElement(const QVariant& v, QDomElement& e)
{
bool ok = true;
clearAttributes(e);
switch (v.type())
{
case QVariant::String:
e.setTagName("string");
e.setAttribute("value", v.toString().utf8());
break;
case QVariant::CString:
e.setTagName("string");
e.setAttribute("value", v.toCString());
break;
case QVariant::Int:
e.setTagName("int");
e.setAttribute("value", v.toInt());
break;
case QVariant::UInt:
e.setTagName("uint");
e.setAttribute("value", v.toUInt());
break;
case QVariant::Double:
e.setTagName("double");
e.setAttribute("value", v.toDouble());
break;
case QVariant::Bool:
e.setTagName("bool");
e.setAttribute("value", boolString(v.toBool()));
break;
case QVariant::Color:
{
e.setTagName("color");
QColor color = v.toColor();
e.setAttribute("red", color.red());
e.setAttribute("green", color.green());
e.setAttribute("blue", color.blue());
}
break;
case QVariant::Point:
{
e.setTagName("point");
QPoint point = v.toPoint();
e.setAttribute("x", point.x());
e.setAttribute("y", point.y());
}
break;
case QVariant::Rect:
{
e.setTagName("rect");
QRect rect = v.toRect();
e.setAttribute("x", rect.x());
e.setAttribute("y", rect.y());
e.setAttribute("width", rect.width());
e.setAttribute("height", rect.height());
}
break;
case QVariant::Size:
{
e.setTagName("size");
QSize qsize = v.toSize();
e.setAttribute("width", qsize.width());
e.setAttribute("height", qsize.height());
}
break;
case QVariant::Font:
{
e.setTagName("font");
QFont f(v.toFont());
e.setAttribute("family", f.family());
e.setAttribute("pointsize", f.pointSize());
e.setAttribute("bold", boolString(f.bold()));
e.setAttribute("italic", boolString(f.italic()));
e.setAttribute("underline", boolString(f.underline()));
e.setAttribute("strikeout", boolString(f.strikeOut()));
}
break;
case QVariant::SizePolicy:
{
e.setTagName("sizepolicy");
QSizePolicy sp(v.toSizePolicy());
e.setAttribute("hsizetype", sp.horData());
e.setAttribute("vsizetype", sp.verData());
#if (QT_VERSION >= 300)
e.setAttribute("horstretch", sp.horStretch());
e.setAttribute("verstretch", sp.verStretch());
#endif
}
break;
case QVariant::Cursor:
e.setTagName("cursor");
e.setAttribute("shape", v.toCursor().shape());
break;
case QVariant::StringList:
{
e.setTagName("stringlist");
uint j;
QDomNode n;
QDomNodeList stringNodeList = e.elementsByTagName("string");
QDomElement stringElem;
QStringList stringList = v.toStringList();
QStringList::Iterator it = stringList.begin();
for (j = 0;
((j < stringNodeList.length()) && (it != stringList.end()));
j++)
{
// get the current string element
stringElem = stringNodeList.item(j).toElement();
// set it to the current string
variantToElement(QVariant(*it), stringElem);
// iterate to the next string
++it;
}
// more nodes in previous stringlist then current, remove excess nodes
if (stringNodeList.count() > stringList.count())
{
while (j < stringNodeList.count())
e.removeChild(stringNodeList.item(j).toElement());
}
else if (j <stringList.count())
{
while (it != stringList.end())
{
// create a new element
stringElem = m_doc.createElement("string");
// set it to the currentstring
variantToElement(QVariant(*it), stringElem);
// append it to the current element
e.appendChild(stringElem);
// iterate to the next string
++it;
}
}
}
break;
#if QT_VERSION >= 300
case QVariant::KeySequence:
e.setTagName("key");
e.setAttribute("sequence", (QString)v.toKeySequence());
break;
#endif
#if 0
case QVariant::List:
case QVaraint::Map:
#endif
default:
qWarning("Don't know how to persist variant of type: %s (%d)!",
v.typeName(), v.type());
ok = false;
break;
}
return ok;
}
