QLabel change font color without changing any other style

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I want to change the color of the text in a QLabel dynamically. I have defined the color and style of the QLabel in the ui file and I want to change it when a certain event takes place. I want to change the color without changing any other style of my QLabel.

I have found several answers adressing the issue of changing text color in a QLabel (1, 2, 3) and they all use the function setStyleSheet. This function works fine but it changes my font size and other styles related to the QLabel.

I have seen that the problem is related to setStyleSheet ignoring any previous style. The solution proposed there involves retrieving all the styles I want to maintain and setting them again together with the text color change.

This is cumbersome and difficult to maintain. If more styles were defined in the future I would need to review this part of the code to be able to reset all of them.

I would like to be able to change QLabel text color without altering any other syle. Is it possible?

qt: QLabel change font color without changing any other style, I want to change the color of the text in a QLabel dynamically.I have defined the color and style of the QLabel in the ui file and I want to change� I have found several answers adressing the issue of changing text color in a QLabel (1, 2, 3) and they all use the function setStyleSheet. This function works fine but it changes my font size and other styles related to the QLabel. I have seen that the problem is related to setStyleSheet ignoring any previous style. The solution proposed there involves retrieving all the styles I want to maintain and setting them again together with the text color change.

You can create some style class to control a widget's style:

class WidgetStyleSheet
{
public:
    // change some style's value
    void setValue(const QString& styleKey, const QString& value)
    {
        _styleMap[styleKey] = value;
    }

    // to default state
    void reset() {}

    // form stylesheet
    QString toStyleSheet() const
    {
        QString styleSheet;
        QMapIterator<QString, QString> iter(_styleMap);
        while( iter.hasNext() )
            styleSheet += QString("%1: %2").arg(iter.key()).arg(iter.value());
        return styleSheet;
    }
private:
    QMap<QString, QString> _styleMap;
}

Somewhere in your code:

WidgetStyleSheet labelSS;
// ...

labelSS.setValue("color", QString("%1").arg( QColor(255, 10, 0).name() );
labelSS.setValue("background-color", "...");
// ...


label->setStyleSheet(labelSS);

How to set font size and color for different text on QLabel, Hi, I need to set the font size and color for the text in QLabel,the please post the sample code some thing like this , but without span style , other code changes the style sheet) and a signal in the parent widget that� Setting colour of text in QT QLabel Is there a simple means for setting the colour of text in a QLabel widget? There doesn't seem to be a property for this and the documentation only mentions text colour in the context of displaying small rich text documents.

If you want to manage the text color of QLabel you could wrap it with customized class.

For example:

class ColorLabel : public QLabel
{
public:
    ColorLabel(const QString &text, QWidget *parent = nullptr)
        : QLabel(text, parent)
    {
        setAutoFillBackground(true);
    }

    void setTextColor(const QColor &color)
    {
        QPalette palette = this->palette();
        palette.setColor(this->backgroundRole(), color);
        palette.setColor(this->foregroundRole(), color);
        this->setPalette(palette);
    }
};

And to use it in your code:

 ColorLabel * poColorLabel = new ColorLabel("My string", this);
 poColorLabel->setTextColor(Qt::red); // set label text in red color

FYI: I tested it on Fedora, Qt5.12 and it works fine.

Dynamically changing QLabel background colour, To copy to clipboard, switch view to plain text mode. In the result - if i click on QLabel which should change background of others - no effect. My application is using different styles like QPlastique, QWindows, It worked for me without the auto fill, but I believe this may be required for WindowsXP style. You can use Qt StyleSheets and set the styleSheet property of QLabel. warning->setStyleSheet("font-weight: bold; color: red"); Qt supports most CSS styles on its QWidget-derived classes. You don't need to set the text format to Qt::RichText for this to work.

The following works fine. But it is not that elegant. This is in python. You have to pass the button name (or any other) to the following as is defined in the array

        btns = ['self.hBeamBtn','self.lBeamBtn','self.allTestBtn','self.prnStatusBtn']
        for btn in btns:
            if  str(btn_name) == str(btn):
                styl = btn+'.setStyleSheet("font: bold;background-color: red;font-size: 12px;height: 28px;width: 80px;")'
                eval(styl)

Change QLabel background without affecting the current style, Under Linux, Qt5.9.2: in the main() function I set a style: int main(int argc, char the background color of a QLabel without affecting the other style settings? it loses some styling properties (i.e. font settings) - I guess inherit� Online Font Changer. As you've probably noticed by now, this translator lets you change your font using Unicode symbols. You can use it to change fonts on your Instagram bio, use fonts on Roblox, change the fonts in your Tweets or Twitter bio - you can even change the font in your Facebook posts to make them stand out more! It's the future, people.

How do I change the color of a label text?, I have the color in QColor color, but how do I change the label's text color to Hi, you can change the color palette of the QLabel and set the If you want to reuse your QColor and not some CSS styles. Yet another way: If no text has been set this will return an empty string. Setting the text clears any previous content. The text will be interpreted either as plain text or as rich text, depending on the text format setting; see setTextFormat(). The default setting is Qt::AutoText; i.e. QLabel will try to auto-detect the format of the text set.

Qlabel set text color, The status indicators are simply QLabels whose text we change whenever qt - example - qlabel text color stylesheet QLabel:텍스트와 배경색을 설정합니다. An example of how to flash the color of the text of a QLabel in PySide or 266: See \l {Supported HTML Subset} for the definition of rich text. debug('Changing icon� You can change the font color on a website using an external style sheet and a style that's used in a paragraph tag. You can apply the same style property to change the font color on any tag that surrounds text, including the <body> tag. Website font design is important.

Qlabel change colour, 1): License change (TL;DR: No changes for end user, more information in you can do with style sheets that can�€™t be done without writing lots of yucky C++ code To change the text color and background color of a QLabel, here is what I would Sep 29, 2016 · Qt Style Sheets also supports all the different types of� Windows 10: How to change text and background colors. The intention of this post is to enable you to change the color of all the fields displayed by your Windows 10 screen (there will always be exceptions – icons, images, etc. – but they should be of minor importance). Moreover it should enable you to choose any color you like. You should

Comments
  • why not to use the setPalette function?
  • @Simon The use of setPalette is discouraged in one of the answers I posted above. Do you disagree with this answer?
  • well I just read that in the documentation: Style sheets let you perform all kinds of customizations that are difficult or impossible to perform using QPalette alone. If you want yellow backgrounds for mandatory fields, red text for potentially destructive push buttons, or fancy check boxes, style sheets are the answer. maybe its the best solution...
  • @Simon For now, I do not need a more complex customization, setPalette works fine. I am worried about the portability issues mentioned in the answer I have posted.