Is there anywhere an example how to create a QTextDocument containing a list?

Wurgl

It seems that I am not smart enough to understand how theses QText*-Classes work. I would like to create something like:

item 1
some description
item 2
…

I would like to create this from some data and store it as html (or whatever format) without using a gui. Somehow I miss the basics and I miss some example.

JKSH

Hi @Wurgl,

You can use HTML code to create lists. Something like:

textDocument->setHtml("<ul><li>Item 1</li><li>Item 2</li></ul>");

See also: http://doc.qt.io/qt-5/richtext-html-subset.html

Wurgl

Writing HTML-Code to create a a QTextDocument with lists which later shall be used to create HTML code … Sound like there is a big potential for optimization.

I would rather have a chance to understand how these group of classes work.

SGaist

Hi,

Then QTextListFormat is the starting point

Wurgl

That's what I had before I started to ask.

#include <QtWidgets/qapplication.h>
#include <QtGui/qtextdocumentwriter.h>
#include <QtGui/qtextdocument.h>
#include <QtGui/qtextcursor.h>

int main(int argc, char **argv)
{
    QApplication app(argc, argv);

    QStringList listItems;
    listItems << "Item 1" << "Item 2" << "Item 3";
    QStringList listDescs;
    listDescs << "Description 1" << "Description 2" << "Description 3";

    QTextDocument page;
    page.setMetaInformation(QTextDocument::DocumentTitle, "The Title");

    QTextCursor cursor(&page);
    cursor.createList(QTextListFormat::ListDisc);

    for(int i = 0; i < listItems.count(); ++ i) {
        cursor.insertText(listItems[i]);
        cursor.insertBlock();
    }

    QTextDocumentWriter mainPage("./index.html", "HTML");
    mainPage.write(&page);

    exit(0);
}

// :!g++ -o xtest -fPIC -Wall -W -Wextra -isystem /usr/include/qt5 % -L/usr/lib64 -lQt5Gui -lQt5Widgets -lQt5Core

Now I tried to add those data from 'listDescs' to the list without getting a bullet before every such line.

for(int i = 0; i < listItems.count(); ++ i) {
    QTextDocument listElement;
    QTextCursor elementCursor(&listElement);
    cursor.insertText(listItems[i]);
    cursor.insertText("\n");
    cursor.insertText(listDescs[i]);

    cursor.insertFragment(QTextDocumentFragment(&listElement));
    cursor.insertBlock();
}

This did not work, it just doubled the bullets.

Okay. So do it different. Bottom-up instead of top-down.

for(int i = 0; i < listItems.count(); ++ i) {
    QTextDocument listElement;
    QTextCursor elementCursor(&listElement);
    elementCursor.insertText(listItems[i]);
    QTextFrameFormat frame;
    frame.setBorderStyle(QTextFrameFormat::BorderStyle_None);
    elementCursor.insertFrame(frame);
    elementCursor.insertText(listDescs[i]);

    cursor.insertFragment(QTextDocumentFragment(&listElement));
    cursor.insertBlock();
}

Oops! I do not even see a <ul>-Element in the created html. Where is my list?

And therefore I asked for some example.

SGaist

Text Edit example