Widgets: Add window state handler

Sine Striker

2023-12-11 677e7a737897e8c2a60564085821545810369e02

 examples/shared/widgetframe/windowbar.cpp

@@ -248,23 +248,26 @@
            QLabel *label = titleLabel();
            QAbstractButton *maxBtn = maxButton();
            switch (event->type()) {
                case QEvent::WindowIconChange:
                case QEvent::WindowIconChange: {
                    if (d_ptr->autoIcon && iconBtn) {
                        iconBtn->setIcon(w->windowIcon());
                        iconChanged(w->windowIcon());
                    }
                    break;
                case QEvent::WindowTitleChange:
                }
                case QEvent::WindowTitleChange: {
                    if (d_ptr->autoTitle && label) {
                        label->setText(w->windowTitle());
                        titleChanged(w->windowTitle());
                    }
                    break;
                case QEvent::WindowStateChange:
                }
                case QEvent::WindowStateChange: {
                    if (maxBtn) {
                        maxBtn->setChecked(w->isMaximized());
                    }
                    break;
                }
                default:
                    break;
            }