CODEWITHSUNDEEP
c++qtqtstylesheets
NoobNoob
NoobNoob

Reputation: 104

Qt StyleSheet to programmatically createdQWidget

I want to apply a stylesheet to a particular Qwidget that I create in the constructor of the parent QWidget. I don't want to create the QWidget in the Designer, but I want to create it dynamically.

This is my code 

enum {one = 0,
two = 1,
three = 2};

cMainForm::cMainForm(QWidget *parent) : QWidget(parent), ui(new Ui::cMainForm) {

//...

QWidget* widgetTest[3];
widgetTest[one] = new QWidget(this);
widgetTest[one]->setGeometry(100,100,100,100);
widgetTest[one]->show();
widgetTest[one]->raise();

//...

 setStyleSheet("QWidget#widgetTest[one]{"
            "background-color: red;"
            "}"
            );

//...

}

And doesn't work.

If I change the styleSheet:

 setStyleSheet("QWidget{"
            "background-color: red;"
            "}"
            );

The stylesheet is applied to all the widgets. But I don't want this; I want to apply the stylesheet only to that particular widget.

Also if I don't use an array, it doesn't work.

QWidget* widgetTest;
widgetTest = new QWidget(this);
widgetTest->setGeometry(100,100,100,100);
widgetTest->show();
widgetTest->raise();

//...

 setStyleSheet("QWidget#widgetTest{"
            "background-color: red;"
            "}"
            );

I already searched the documentation.

What's the solution?

Upvotes: 2

Views: 550

Answers (1)

p-a-o-l-o
p-a-o-l-o

Reputation: 10047

The selector you're using (#) refers to the widget objectName property, not the variable name (the style engine knows nothing about your variables). Give the widget an object name:

widgetTest->setObjectName("widgetTest");

then set the stylesheet:

widgetTest->setStyleSheet("QWidget#widgetTest { background-color: red }");

Upvotes: 4

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