view_container.hpp

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// view_container.hpp
/*
neogfx C++ App/Game Engine
Copyright (c) 2015, 2020 Leigh Johnston.  All Rights Reserved.
 
This program is free software: you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
 
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
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include <neogfx/neogfx.hpp>
#include <neogfx/app/drag_drop.hpp>
#include <neogfx/gui/widget/widget.hpp>
#include <neogfx/gui/widget/scrollable_widget.hpp>
#include <neogfx/gui/layout/stack_layout.hpp>
#include <neogfx/gui/layout/vertical_layout.hpp>
#include <neogfx/gui/widget/tab_bar.hpp>
#include <neogfx/gui/widget/tab_page_container.hpp>
#include <neogfx/gui/layout/horizontal_layout.hpp>
#include <neogfx/gui/mvc/i_view.hpp>
#include <neogfx/gui/mvc/i_view_container.hpp>
 
namespace neogfx::mvc
{
    class view_stack : public drag_drop_target<framed_scrollable_widget>
    {
        meta_object(drag_drop_target<framed_scrollable_widget>)
    public:
        view_stack(i_layout& aLayout, i_view_container& aParent);
    public:
        void add_view(i_view& aView);
        void remove_view(i_view& aView);
    protected:
        neogfx::focus_policy focus_policy() const override;
    private:
        stack_layout iLayout;
        i_view_container& iParent;
    };
 
    template <typename Base = scrollable_widget<>>
    class view_container : public tab_page_container<Base>, i_view_container
    {
        meta_object(tab_page_container<Base>)
    public:
        define_declared_event(ViewAdded, view_added, i_view&)
        define_declared_event(ViewRemoved, view_removed, i_view&)
    public:
        view_container(i_widget& aParent, view_container_style aStyle = view_container_style::Tabbed);
        view_container(i_layout& aLayout, view_container_style aStyle = view_container_style::Tabbed);
    public:
        bool is_widget() const override;
        const i_widget& as_widget() const override;
        i_widget& as_widget() override;
        const i_tab_container& tab_container() const override;
        i_tab_container& tab_container() override;
        const mvc::view_stack& view_stack() const override;
        mvc::view_stack& view_stack() override;
    public:
        i_layout& page_layout() override;
    public:
        view_container_style style() const override;
        void change_style(view_container_style aNewStyle) override;
    public:
        void add_controller(i_controller& aController) override;
        void add_controller(std::shared_ptr<i_controller> aController) override;
        void remove_controller(i_controller& aController) override;
    public:
        bool is_managing_layout() const override;
    private:
        view_container_style iStyle;
        vertical_layout iLayout0;
        horizontal_layout iLayout1;
        mvc::view_stack iViewStack;
        std::vector<std::shared_ptr<i_controller>> iControllers;
    };
 
    typedef view_container<> scrollable_view_container;
}