window_manager.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
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 * it under the terms of the Mozilla Public License Version 2.0 as published *
 * by the Mozilla Foundation; either version 2 of the License, or            *
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 * This program is distributed in the hope that it will be useful,           *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_RENDER_CONCEPTS_WINDOW_MANAGER_H
#define VCL_RENDER_CONCEPTS_WINDOW_MANAGER_H
 
#include <vclib/concepts/space/point.h>
 
#include <concepts>
 
namespace vcl {
template<typename T>
concept WindowManagerConcept = requires (
    T&&                                obj,
    typename RemoveRef<T>::ParentType* pPtr,
    std::string                        s,
    uint                               u) {
    typename RemoveRef<T>::ParentType;
 
    { RemoveRef<T>::WINDOW_MANAGER_ID } -> std::same_as<const uint&>;
 
    RemoveRef<T>();
    RemoveRef<T>(pPtr);
    RemoveRef<T>(s, u, u);
    RemoveRef<T>(s, u, u, pPtr);
 
    { obj.windowTitle() } -> std::same_as<const std::string&>;
 
    { obj.width() } -> std::convertible_to<uint>;
    { obj.height() } -> std::convertible_to<uint>;
 
    { obj.isMinimized() } -> std::convertible_to<bool>;
 
    { obj.dpiScale() } -> Point2Concept;
 
    obj.winId(); // todo: try to check return type, should be void*
    { obj.displayId() } -> std::same_as<void*>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.setWindowTitle(std::string()) } -> std::same_as<void>;
 
        { obj.update() } -> std::same_as<void>;
    };
};
 
} // namespace vcl
 
#endif // VCL_RENDER_CONCEPTS_WINDOW_MANAGER_H