popup.h

/*
 * Copyright (C) 2018 Microchip Technology Inc.  All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef EGT_POPUP_H
#define EGT_POPUP_H
 
#include <egt/app.h>
#include <egt/window.h>
 
namespace egt
{
inline namespace v1
{
 
template <class T>
class PopupType : public T
{
public:
 
    explicit PopupType(const Size& size = {},
                       const Point& point = {}) noexcept
        : T(size)
    {
        this->move(point);
    }
 
    explicit PopupType(Serializer::Properties& props) noexcept
        : PopupType(props, false)
    {
    }
 
protected:
 
    explicit PopupType(Serializer::Properties& props, bool is_derived) noexcept
        : T(props, true)
    {
        if (!is_derived)
            T::deserialize_leaf(props);
    }
 
public:
 
    virtual void show_centered()
    {
        this->zorder_top();
 
        if (T::parent())
            this->move_to_center(T::parent()->box().center());
        else
            this->move_to_center(Application::instance().screen()->box().center());
 
        T::show();
    }
 
    virtual void show_modal(bool center = false)
    {
        if (!Application::instance().modal_window())
        {
            Application::instance().set_modal_window(this);
 
            this->zorder_top();
 
            if (center)
                this->show_centered();
            else
                this->show();
        }
    }
 
    void show() override
    {
        this->zorder_top();
 
        T::show();
    }
 
    void hide() override
    {
        T::hide();
 
        if (Application::instance().modal_window() == this)
        {
            Application::instance().set_modal_window(nullptr);
        }
    }
};
 
using Popup = PopupType<Window>;
 
}
}
 
#endif