- Qt 6.4
- Qt Widgets
- Qt Widgets Examples
- Style Sheet Example
- Qt 6.4.2 Reference Documentation

# Style Sheet Example

The Style Sheet Example shows how to use style sheets.

Screen Shot of the Pagefold style sheet

The Style Sheet example shows how widgets can be styled using Qt Style Sheets. You can open the style editor by selecting File > Edit Style Sheet, to select an existing style sheet or design your own style and load it.

The Style Sheet example consists of 2 classes:

- `MainWindow`
- `StyleSheetEditor`

#### MainWindow Class

`MainWindow` inherits QWidget, and is the application's main window defined in `mainwindow.ui`. The style of `MainWindow` can be modified with `StyleSheetEditor`.

#### StyleSheetEditor Class

`StyleSheetEditor` enables you to open an editor where you can load an existing style sheet. It is also possible to define a new stylesheet and load it. Its layout is defined in `stylesheeteditor.ui`.

         connect(ui.styleCombo, &QComboBox::textActivated, this, &StyleSheetEditor::setStyleName);

Sets the specified styleName and grays the `applyButton`.

         connect(ui.styleSheetCombo, &QComboBox::textActivated, this, &StyleSheetEditor::setStyleSheetName);

Loads the stylesheet from `styleSheetName`.

     void StyleSheetEditor::setModified()

Enables the `applyButton` when the text in the buffer has changed.

     void StyleSheetEditor::apply()

Sets the stylesheet properties in qApp and disables the `applyButton`.

     void StyleSheetEditor::loadStyleSheet(const QString &sheetName)

Loads the specified sheetName, and sets its properties in qApp.

Example project @ code.qt.io