Adjust paint event handler

Sine Striker

2023-12-23 f3721da17996168489778327459084dd227690d6

 src/widgets/widgetwindowagent_win.cpp

@@ -9,6 +9,9 @@
namespace QWK {

#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)

    class WidgetBorderHandler;

    class WidgetBorderHandler : public QObject, public NativeEventFilter {
    public:
        explicit WidgetBorderHandler(QWidget *widget, AbstractWindowContext *ctx)
@@ -73,6 +76,16 @@
                        (Qt::WindowMinimized | Qt::WindowMaximized | Qt::WindowFullScreen))
                        break;

                    // Friend class helping to call `event`
                    class HackedWidget : public QWidget {
                    public:
                        friend class WidgetBorderHandler;
                    };

                    // Let the widget paint first
                    static_cast<HackedWidget *>(widget)->event(event);

                    // Draw border
                    auto paintEvent = static_cast<QPaintEvent *>(event);
                    auto rect = paintEvent->rect();
                    auto region = paintEvent->region();
@@ -84,7 +97,7 @@
                        &region,
                    };
                    ctx->virtual_hook(AbstractWindowContext::DrawWindows10BorderHook, args);
                    break;
                    return true;
                }

                case QEvent::WindowStateChange: {