// Richtext simplification filter: Remove hard-coded font settings,
// <style> elements, <p> attributes other than 'align' and
// and unnecessary meta-information.
QString simplifyRichTextFilter(const QString &in, bool *isPlainTextPtr = 0)
{
unsigned elementCount = 0;
bool paragraphAlignmentFound = false;
QString out;
QXmlStreamReader reader(in);
QXmlStreamWriter writer(&out);
writer.setAutoFormatting(false);
writer.setAutoFormattingIndent(0);
while (!reader.atEnd()) {
switch (reader.readNext()) {
case QXmlStreamReader::StartElement:
elementCount++;
if (filterElement(reader.name())) {
const QStringRef name = reader.name();
QXmlStreamAttributes attributes = reader.attributes();
filterAttributes(name, &attributes, ¶graphAlignmentFound);
writer.writeStartElement(name.toString());
if (!attributes.isEmpty())
writer.writeAttributes(attributes);
} else
reader.readElementText(); // Skip away all nested elements and characters.
break;
case QXmlStreamReader::Characters:
if (!isWhiteSpace(reader.text()))
writer.writeCharacters(reader.text().toString());
break;
case QXmlStreamReader::EndElement:
writer.writeEndElement();
break;
default:
break;
}
}
// Check for plain text (no spans, just <html><head><body><p>)
if (isPlainTextPtr)
*isPlainTextPtr = !paragraphAlignmentFound && elementCount == 4u; //
return out;
}
bool OdtWriter::writeParagraphStyle(const QTextBlockFormat& format, const QString& name)
{
QXmlStreamAttributes attributes;
bool rtl = format.layoutDirection() == Qt::RightToLeft;
if (rtl) {
attributes.append(QString::fromLatin1("style:writing-mode"), QString::fromLatin1("rl"));
}
Qt::Alignment align = format.alignment();
if (rtl && (align & Qt::AlignLeft)) {
attributes.append(QString::fromLatin1("fo:text-align"), QString::fromLatin1("left"));
} else if (align & Qt::AlignRight) {
attributes.append(QString::fromLatin1("fo:text-align"), QString::fromLatin1("right"));
} else if (align & Qt::AlignCenter) {
attributes.append(QString::fromLatin1("fo:text-align"), QString::fromLatin1("center"));
} else if (align & Qt::AlignJustify) {
attributes.append(QString::fromLatin1("fo:text-align"), QString::fromLatin1("justify"));
}
if (format.indent() > 0) {
attributes.append(QString::fromLatin1("fo:margin-left"), QString::number(format.indent() * 0.5) + QString::fromLatin1("in"));
}
if (attributes.isEmpty()) {
return false;
}
m_xml.writeStartElement(QString::fromLatin1("style:style"));
m_xml.writeAttribute(QString::fromLatin1("style:name"), name);
m_xml.writeAttribute(QString::fromLatin1("style:family"), QString::fromLatin1("paragraph"));
m_xml.writeAttribute(QString::fromLatin1("style:parent-style-name"), QString::fromLatin1("Normal"));
m_xml.writeEmptyElement(QString::fromLatin1("style:paragraph-properties"));
m_xml.writeAttributes(attributes);
m_xml.writeEndElement();
return true;
}
bool OdtWriter::writeTextStyle(const QTextCharFormat& format, const QString& name)
{
QXmlStreamAttributes attributes;
if (format.fontWeight() == QFont::Bold) {
attributes.append(QString::fromLatin1("fo:font-weight"), QString::fromLatin1("bold"));
}
if (format.fontItalic()) {
attributes.append(QString::fromLatin1("fo:font-style"), QString::fromLatin1("italic"));
}
if (format.fontUnderline()) {
attributes.append(QString::fromLatin1("style:text-underline-type"), QString::fromLatin1("single"));
attributes.append(QString::fromLatin1("style:text-underline-style"), QString::fromLatin1("solid"));
}
if (format.fontStrikeOut()) {
attributes.append(QString::fromLatin1("style:text-line-through-type"), QString::fromLatin1("single"));
}
if (format.verticalAlignment() == QTextCharFormat::AlignSuperScript) {
attributes.append(QString::fromLatin1("style:text-position"), QString::fromLatin1("super"));
} else if (format.verticalAlignment() == QTextCharFormat::AlignSubScript) {
attributes.append(QString::fromLatin1("style:text-position"), QString::fromLatin1("sub"));
}
if (attributes.isEmpty()) {
return false;
}
m_xml.writeStartElement(QString::fromLatin1("style:style"));
m_xml.writeAttribute(QString::fromLatin1("style:name"), name);
m_xml.writeAttribute(QString::fromLatin1("style:family"), QString::fromLatin1("text"));
m_xml.writeEmptyElement(QString::fromLatin1("style:text-properties"));
m_xml.writeAttributes(attributes);
m_xml.writeEndElement();
return true;
}
