Fix centerize issue (#34)

SineStriker

2024-01-29 bc8868d519702c5a55f21377711cf4db54714650

 src/core/contexts/abstractwindowcontext.cpp

@@ -1,3 +1,7 @@
// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
// SPDX-License-Identifier: Apache-2.0

#include "abstractwindowcontext_p.h"

#include <QtGui/QPen>
@@ -120,8 +124,8 @@
    }

#ifdef Q_OS_MAC
    void AbstractWindowContext::setSystemButtonArea(const QRect &rect) {
        m_systemButtonArea = rect;
    void AbstractWindowContext::setSystemButtonAreaCallback(const ScreenRectCallback &callback) {
        m_systemButtonAreaCallback = callback;
        virtual_hook(SystemButtonAreaChangedHook, nullptr);
    }
#endif
@@ -201,9 +205,10 @@
                if (!m_windowHandle)
                    return;

                QRect windowGeometry = m_delegate->getGeometry(m_host);
                QRect screenGeometry = m_windowHandle->screen()->geometry();
                int x = (screenGeometry.width() - m_windowHandle->width()) / 2;
                int y = (screenGeometry.height() - m_windowHandle->height()) / 2;
                int x = (screenGeometry.width() - windowGeometry.width()) / 2;
                int y = (screenGeometry.height() - windowGeometry.height()) / 2;
                QPoint pos(x, y);
                pos += screenGeometry.topLeft();
                m_windowHandle->setPosition(pos);