create .odt with headings and tables

mastupristi

I need to create a .odt file that contains headings (such as heading 1 or heading 2) and tables.

I tried something like this:

#include <QString>
#include <QTextStream>
#include <QTextDocument>
#include <QTextDocumentWriter>

int main(void)
{
    QString strStream;
    QTextStream out(&strStream);

    QTextDocument *document = new QTextDocument();

    out << "<!DOCTYPE html>"
        << "<html>\n"
        << "<head>"
        << "<title>Test</title>"
        << "</head>"
        << "<body>"
        << "<h1>Test heading 1</h1>"
        << "</body>"
        << "</html>";
    document->setHtml(strStream);

    QTextDocumentWriter writer("test.odt");

    writer.setFormat("odf");
    writer.write(document);

    delete document;
    return 0;
}

but the product .odt file has no heading.
screenshot
what I would like to be heading 1 doesn't have the Heading 1 style, but, in fact, it's a Default Style bold text.

How do I force Heading 1 style?

best regards
Max

VRonin

This is not a problem of QTextDocumentWriter, the information about the h1 tag is lost in document->setHtml(strStream); (ref1 and ref2).

Fixing this would imply a huge effort.

mastupristi

@VRonin Is there an alternative way to html to get an odt with heading 1 and a table, maybe even with custom styles?

VRonin

The easiest method I see is using QXmlStreamWriter + a zip library to create the file from scratch but, as you can imagine, it's far from being "easy"

Gojir4

@mastupristi said in create .odt with headings and tables:

@VRonin Is there an alternative way to html to get an odt with heading 1 and a table, maybe even with custom styles?

You can create you own style using QTextCharFormat and QTextBlockFormat and then creating the document using the QTextDocument API.

Here is an example:
You will see htmlToOdf() function is simply your code, but createsOdf() and createsOdfWithTable() creates a ODT file using custom style the the QTextDocument API. Hope it helps

#include <QString>
#include <QTextStream>
#include <QTextDocument>
#include <QTextDocumentWriter>
#include <QTextCursor>
#include <QTextBlock>
#include <QDate>
#include <QTextTableCell>


void htmlToOdf(){
    QString strStream;
    QTextStream out(&strStream);

    QTextDocument *document = new QTextDocument();

    out << "<!DOCTYPE html>"
        << "<html>"
        << "<head>"
        << "<title>Test</title>"
        << "</head>"
        << "<body>"
        << "<h1>Test heading 1</h1>"
        << "</body>"
        << "</html>";
    document->setHtml(strStream);

    QTextDocumentWriter writer("test.odt");
    writer.setFormat("odf");
    writer.write(document);
    QTextDocumentWriter writer2("test.html");
    writer2.setFormat("html");
    writer2.write(document);

    delete document;
}

void createsOdf(){
    QTextDocument *doc = new QTextDocument;
    doc->setDocumentMargin(10);

    QTextCursor cursor(doc);
    cursor.movePosition(QTextCursor::Start);

    QTextCharFormat textFormat;
    textFormat.setFontPointSize(10);

    QTextCharFormat boldFormat;
    boldFormat.setFontWeight(QFont::Bold);
    //HEADERS
    QTextCharFormat header1Format = boldFormat;
    header1Format.setFontPointSize(12);
    header1Format.setFontUnderline(true);
    header1Format.setForeground(QBrush(QColor("#0000FF")));

    QTextCharFormat titleFormat = boldFormat;
    titleFormat.setFontPointSize(20);
    header1Format.setForeground(QBrush(QColor("#0000FF")));

    QTextBlockFormat titleBlockFormat = cursor.block().blockFormat();
    titleBlockFormat.setAlignment(Qt::AlignHCenter);
    QTextBlockFormat blockFormat = cursor.block().blockFormat();


    //Title of the document
    cursor.insertBlock();
    cursor.setBlockCharFormat(titleFormat);
    cursor.setBlockFormat(titleBlockFormat);
    cursor.insertText(QObject::tr("Test !"));
    cursor.insertBlock(); //new line

    cursor.setBlockFormat(blockFormat);
    cursor.insertText(QObject::tr("Header 1"), header1Format);
    cursor.insertBlock();

    cursor.movePosition(QTextCursor::End);

    QTextDocumentWriter writer("test2.odt");
    writer.setFormat("odf");
    writer.write(doc);
    QTextDocumentWriter writer2("test2.html");
    writer2.setFormat("html");
    writer2.write(doc);

    delete doc;
}

void createsOdfWithTable(){
    QTextDocument *doc = new QTextDocument;
    doc->setDocumentMargin(10);

    QTextCursor cursor(doc);
    cursor.movePosition(QTextCursor::Start);

    QTextCharFormat textFormat;
    textFormat.setFontPointSize(10);
    QTextCharFormat boldFormat;
    boldFormat.setFontWeight(QFont::Bold);

    //HEADERS
    QTextCharFormat header1Format = boldFormat;
    header1Format.setFontPointSize(12);
    header1Format.setFontUnderline(true);
    header1Format.setForeground(QBrush(QColor("#0000FF")));

    QTextCharFormat header2Format = header1Format;
    header2Format.setFontPointSize(14);
    QTextCharFormat header3Format = header1Format;
    header3Format.setFontPointSize(16);

    QTextCharFormat titleFormat = boldFormat;
    titleFormat.setFontPointSize(20);
    header1Format.setForeground(QBrush(QColor("#0000FF")));

    QTextBlockFormat blockFormat = cursor.block().blockFormat();
    QTextBlockFormat titleBlockFormat = cursor.block().blockFormat();
    titleBlockFormat.setAlignment(Qt::AlignHCenter);

    QTextCharFormat alternateCellFormat = textFormat;
    alternateCellFormat.setBackground(QBrush(QColor("#D1EBFF")));

    QTextTableFormat tableFormat;
    tableFormat.setBorder(1);
    tableFormat.setBorderStyle(QTextFrameFormat::BorderStyle_Solid);
    //tableFormat.setBorderBrush(QBrush(QColor("#0072A6")));
    tableFormat.setCellPadding(2);
    tableFormat.setCellSpacing(0);
    tableFormat.setWidth(QTextLength(QTextLength::PercentageLength, 80));
    tableFormat.setAlignment(Qt::AlignLeft);


    //Title of the document
    cursor.insertBlock();
    cursor.setBlockCharFormat(titleFormat);
    cursor.setBlockFormat(titleBlockFormat);
    cursor.insertText(QObject::tr("My Great Document !"));
    cursor.insertBlock(); //new line
    cursor.insertBlock();
    cursor.insertBlock();

    cursor.setBlockFormat(blockFormat);
    cursor.insertText(QObject::tr("Header 1"), header1Format);
    cursor.insertBlock();

    cursor.setCharFormat(textFormat);

    cursor.insertText("Author:\tMe");
    cursor.insertBlock();
    cursor.insertText("Version:\tMe");
    cursor.insertBlock();
    cursor.insertText("Date:\t" + QDate::currentDate().toString("dd.MM.yyyy"));
    cursor.insertBlock();


    cursor.insertText(QObject::tr("Header 2"), header2Format);
    cursor.insertBlock();
    cursor.insertText(QObject::tr("Header 3"), header3Format);
    cursor.insertBlock();



    //Insert table with nb row = 10, column = 2
    QTextTable *table = cursor.insertTable(10+1, 2, tableFormat);
    QTextTableCell headerCell = table->cellAt(0, 0);
    QTextCursor headerCellCursor = headerCell.firstCursorPosition();
    headerCellCursor.insertText(QObject::tr("Name"), boldFormat);
    headerCell = table->cellAt(0, 1);
    headerCellCursor = headerCell.firstCursorPosition();
    headerCellCursor.insertText(QObject::tr("Value"), boldFormat);

    for(int i = 0; i < 10; i++){
        QTextCharFormat cellFormat = i % 2 == 0 ? textFormat : alternateCellFormat;
        QTextTableCell cell = table->cellAt(i + 1, 0);
        cell.setFormat(cellFormat);
        QTextCursor cellCursor = cell.firstCursorPosition();
        cellCursor.insertText("Row " + QString::number(i));

        cell = table->cellAt(i + 1, 1);
        cell.setFormat(cellFormat);
        cellCursor = cell.firstCursorPosition();
        cellCursor.insertText(QString::number(i));
    }

    cursor.movePosition(QTextCursor::End);


    QTextDocumentWriter writer("test3.odt");
    writer.setFormat("odf");
    writer.write(doc);
    QTextDocumentWriter writer2("test3.html");
    writer2.setFormat("html");
    writer2.write(doc);

    delete doc;

}

int main(void)
{
    htmlToOdf();
    createsOdf();
    createsOdfWithTable();

    return 0;
}

Important: Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

create .odt with headings and tables