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# mainwindow.cpp Example File

widgets/stylesheet/mainwindow.cpp

     /****************************************************************************
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     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
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     ** This file is part of the examples of the Qt Toolkit.
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     #include <QtGui>

     #include "mainwindow.h"
     #include "stylesheeteditor.h"

     MainWindow::MainWindow()
     {
         ui.setupUi(this);

         ui.nameLabel->setProperty("class", "mandatory QLabel");

         styleSheetEditor = new StyleSheetEditor(this);

         statusBar()->addWidget(new QLabel(tr("Ready")));

         connect(ui.exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
         connect(ui.aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
     }

     void MainWindow::on_editStyleAction_triggered()
     {
         styleSheetEditor->show();
         styleSheetEditor->activateWindow();
     }

     void MainWindow::on_aboutAction_triggered()
     {
         QMessageBox::about(this, tr("About Style sheet"),
             tr("The <b>Style Sheet</b> example shows how widgets can be styled "
                "using <a href=\"http://qt.nokia.com/doc/4.5/stylesheet.html\">Qt "
                "Style Sheets</a>. Click <b>File|Edit Style Sheet</b> to pop up the "
                "style editor, and either choose an existing style sheet or design "
                "your own."));
     }