chore: baseline usable version

libs/qwindowkit/src/core/windowagentbase.h

@@ -0,0 +1,50 @@
+// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
+// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef WINDOWAGENTBASE_H
+#define WINDOWAGENTBASE_H
+
+#include <memory>
+
+#include <QtCore/QObject>
+
+#include <QWKCore/qwkglobal.h>
+
+namespace QWK {
+
+    class WindowAgentBasePrivate;
+
+    class QWK_CORE_EXPORT WindowAgentBase : public QObject {
+        Q_OBJECT
+        Q_DECLARE_PRIVATE(WindowAgentBase)
+    public:
+        ~WindowAgentBase() override;
+
+        enum SystemButton {
+            Unknown,
+            WindowIcon,
+            Help,
+            Minimize,
+            Maximize,
+            Close,
+        };
+        Q_ENUM(SystemButton)
+
+        QVariant windowAttribute(const QString &key) const;
+        Q_INVOKABLE bool setWindowAttribute(const QString &key, const QVariant &attribute);
+
+    public Q_SLOTS:
+        void showSystemMenu(const QPoint &pos); // Only available on Windows now
+        void centralize();
+        void raise();
+
+    protected:
+        explicit WindowAgentBase(WindowAgentBasePrivate &d, QObject *parent = nullptr);
+
+        const std::unique_ptr<WindowAgentBasePrivate> d_ptr;
+    };
+
+}
+
+#endif // WINDOWAGENTBASE_H