Prepare to remove style support again

SineStriker

2023-12-22 a5d13e19dd7f6037e10b649c49805922ae5e0fa6

 examples/mainwindow/mainwindow.cpp

@@ -10,8 +10,8 @@
#include <QtWidgets/QPushButton>
#include <QtWidgets/QActionGroup>

#include <QWKCore/styleagent.h>
#include <QWKWidgets/widgetwindowagent.h>
#include <QWKStyleSupport/styleagent.h>

#include <widgetframe/windowbar.h>
#include <widgetframe/windowbutton.h>
@@ -33,8 +33,7 @@

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    installWindowAgent();

    styleAgent = new QWK::StyleAgent(this);
    installStyleAgent();

    auto clockWidget = new ClockWidget();
    clockWidget->setObjectName(QStringLiteral("clock-widget"));
@@ -283,10 +282,15 @@
#endif
}

void MainWindow::installStyleAgent() {
    styleAgent = new QWK::StyleAgent(this);
}

void MainWindow::loadStyleSheet(Theme theme) {
    if (!styleSheet().isEmpty() && theme == currentTheme)
        return;
    currentTheme = theme;

    if (QFile qss(theme == Dark ? QStringLiteral(":/dark-style.qss")
                                : QStringLiteral(":/light-style.qss"));
        qss.open(QIODevice::ReadOnly | QIODevice::Text)) {