/*********************************************************************
Matt Marchant 2015
http://trederia.blogspot.com

pseuthe Zlib license.

This software is provided 'as-is', without any express or
implied warranty. In no event will the authors be held
liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented;
you must not claim that you wrote the original software.
If you use this software in a product, an acknowledgment
in the product documentation would be appreciated but
is not required.

2. Altered source versions must be plainly marked as such,
and must not be misrepresented as being the original software.

3. This notice may not be removed or altered from any
source distribution.
*********************************************************************/

#ifndef UI_COMBOBOX_HPP_
#define UI_COMBOBOX_HPP_

#include <UIControl.hpp>

#include <SFML/Graphics/Font.hpp>
#include <SFML/Graphics/RectangleShape.hpp>
#include <SFML/Graphics/Text.hpp>

namespace ui
{
    class ComboBox final : public Control
    {
    public:
        using Ptr = std::shared_ptr<ComboBox>;

        ComboBox(const sf::Font& font, const sf::Texture& t);
        ~ComboBox() = default;

        bool selectable() const override;
        void select() override;
        void deselect() override;

        void activate() override;
        void deactivate() override;

        void handleEvent(const sf::Event&, const sf::Vector2f&) override;
        void setAlignment(Alignment) override;
        bool contains(const sf::Vector2f& mousePos) const override;

        void addItem(const std::string& name, sf::Int32 value);
        const std::string& getSelectedText() const;
        sf::Int32 getSelectedValue() const;

        void setBackgroundColour(const sf::Color&);
        void setHighlightColour(const sf::Color&);
        void setSelectedIndex(sf::Uint16 index);
        sf::Uint32 size() const;
        void selectItem(const std::string&);
        void selectItem(sf::Uint16);

    private:
        struct Item
        {
            using Ptr = std::unique_ptr<Item>;
            std::string name;
            sf::Int32 value;

            sf::FloatRect bounds;
            sf::Text text;

            Item(const std::string& name, sf::Int32 value, const sf::Font& font);
        };

        std::vector<Item::Ptr> m_items;

        bool m_showItems;
        sf::RectangleShape m_mainShape;
        sf::RectangleShape m_dropDownShape;
        mutable sf::RectangleShape m_highlightShape;

        sf::Uint16 m_selectedIndex;
        sf::Uint16 m_nextIndex;
        sf::Text m_selectedText;

        const sf::Font& m_font;

        void draw(sf::RenderTarget& rt, sf::RenderStates states) const override;
    };
}

#endif //UI_COMBOBOX_HPP_