How to style a table in QTextEdit

[HenkCoder]

@mchinand

    //Setting up the TextEdit
    QString fontName{obj["font"].toObject()["family"].toString()};
    int fontSize{obj["font"].toObject()["pointSize"].toInt()};
    ui->tabWidget->addTab(new TextEdit(), QString("New Document " + QString::number(ui->tabWidget->count() + 1)));
    ui->tabWidget->setCurrentIndex(ui->tabWidget->count() - 1);
    TextEdit *edit{getTabTextEdit()};
    edit->setGeometry(0,0,ui->tabWidget->width() - 3, ui->tabWidget->height() - 59);
    edit->setTabStopDistance(32);
    edit->setFocus();
    if(foreRed + foreGreen + foreBlue != 0)
        edit->setTextColor(QColor(foreRed, foreGreen, foreBlue));
    if(backRed + backGreen + backBlue != 765)
        edit->setTextBackgroundColor(QColor(backRed, backGreen, backBlue));
    edit->setFontPointSize(fontSize);
    edit->document()->setDefaultStyleSheet("QTextDocument:table{width: 100%; border-collapse: collapse;}");
    edit->setFontFamily(fontName);
    ui->fontComboBox->setCurrentFont(QFont(fontName));
    ui->fontsize->setValue(fontSize);
    QObject::connect(edit, &TextEdit::textChanged, this, &MainWindow::edit_changed);
    QObject::connect(edit, &TextEdit::cursorPositionChanged, this, &MainWindow::cursorPosChanged);

Do you want the full constructor code?

[HenkCoder]

@JonB
My bad sorry, I used a few times :: for example in the tabWidget one.
QTabWidget::tab I tried again with that but it still doesn't work.

[mchinand]

Where's your table? Did you see this comment regarding the defaultStyleSheet?

"Note: Changing the default style sheet does not have any effect to the existing content of the document."

[HenkCoder]

@mchinand
I have a button that asks lets you create a table.

Is this the problem?

[JonB]

@HenkCoder
Have you tried plain setDefaultStyleSheet/setStylesheet("table{width: 100%; border-collapse: collapse;}") on something?

[HenkCoder]

@JonB
Sorry, I didn't understand what do you mean.

[mchinand]

Try just creating a table statically in code first to figure out how to get the stylesheet working.

[HenkCoder]

@mchinand
Ok.

[SGaist]

Hi,

I think you are mixing two very different things here:

• Qt Style Sheet for customizing widgets
• QTextDocument Rich Text support shown through QTextEdit.

What you want to do is handled by the later. See the Rich Text chapter in Qt's documentation.

[HenkCoder]

@SGaist Hello,
So, I got the border collapse working by doing this:

TextEdit *edit{getTabTextEdit()};
    QTextTableFormat format;
    format.setBorderCollapse(true);
    edit->textCursor().insertTable(lineNum, columnNum, format);

But I don't know how to set the table's width to change when the textedit's width changes and I don't know how to put its width to 100% as CSS does.

[SGaist]

If memory serves well, something like:

format.setWidth(QTextLength(QTextLength::PercentageLength, 100));

[HenkCoder]

@SGaist Yes! This was right!
Thank you so much, but I have one last question, sorry about that.
When I create the table it's like this:

but then when I type something in a cell the line separing the different cells adapts to the text. How do I avoid that?

I just wanted to expand the table to the TextEdit's width not also this feature.

[SGaist]

So you want the column to all take the same percentage of space ?

[HenkCoder]

This post is deleted!

[HenkCoder]

@SGaist Yes, but in the way that they are distribuited, for example if I have 3 columns each one will be 33% but I don't want that they adapt with the text.

[SGaist]

Then QTextTableFormat::setColumnWidthConstraints looks like what you want.

[HenkCoder]

@SGaist And how do I do that? I tried to search online but I didn't find any solution that may help me, because they are reguarding QTableView.
I also checked the documentation but it doesn't explain much and I still don't know how to use it.
Thanks in advance.

[SGaist]

QTextLength oneThird = QTextLength(QTextLength::PercentageLength, 33);
QVector<QTextLength> constraints(3, oneThird);
format.setColumnWidthConstraints(constraints);

[HenkCoder]

@SGaist This was the right solution! Thank you so much!