Saving QTextDocument line spacing for inner blocks to HTML file for further usage

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Greetings everyone. I'm writing WYSIWYG editor with Qt-4.8 Scribe framework. One of requirements is setting different line spacings for different text blocks. http://www.qtcentre.org/threads/4999...-QTextDocument thread gave me a solution: usage of QTextBlockFormat::setLineHeight(). It works fine but when I save a document with QTextDocumentWriter line spacing is not saved. See picture and code below.

Image:
Attachment 12199

Resulting HTML code (within <body> tag):

Code:

<body style=" font-family:'Times New Roman'; font-size:12pt; font-weight:400; font-style:normal;">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Single spacing:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq</p>
<p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">One and a half spacing:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq</p>
<p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Double spacing:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq</p></body>

As you can see, there is no properties like "line-height" within <p style"=..."> tags as well as in http://doc.qt.io/qt-4.8/richtext-html-subset.html (Supported HTML subset). Here is code that sets line spacing:

Code:

QTextBlockFormat fmt = cursorToHandle.blockFormat();
    fmt.setLineHeight(c_spacing, QTextBlockFormat::ProportionalHeight); // c_spacing is 100 for single, 150 for 1.5 and 200 for double
    cursorToHandle.setBlockFormat(fmt);

Here is code that saves document:

Code:

QString strDocHtml = m_pDoc->toHtml();
QSharedPointer<QFile> pFile(new QFile(c_strFilePath));
    if (!pFile->open(QIODevice::WriteOnly))
    {
        return false;
    }
    return pFile->write(strDocHtml.toStdString().c_str());

Here is code for loading:

Code:

QFile file(c_strFilePath);
    if (!file.open(QFile::ReadOnly))
    {
        return false;
    }
 
    QByteArray  data = file.readAll();
    QTextCodec* pCodec = Qt::codecForHtml(data);
    QString strRawHtml = pCodec->toUnicode(data);
 
        m_pDoc->setHtml(strRawHtml);
    }

So the question is: is there any way to save line spacings to *.html file and read it again?

If any additional information is necessary I'll be glad to provide it.

Thanks in advance.

Re: Saving QTextDocument line spacing for inner blocks to HTML file for further usage

Well, seems like it is bug of sorts, because there is no mentions about line-edit block property in documentation. Reported here about this issue.

Re: Saving QTextDocument line spacing for inner blocks to HTML file for further usage

Is there any ability to mark this thread as solved?