dl_ui_background.h

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#pragma once
 
#ifndef DL_DISABLE_RENDER
#include "render/dl_sprite.h"
#include "render/dl_sprite9.h"
#include "misc/dl_component_use.h"
 
namespace dl::UI
{
class Background
{
public:
    using CbCustomRender = std::function<void(Background*)>;
 
    enum class Type
    {
        NONE,
        SPRITE,
        SPRITE9
    };
 
    static Background* Create()
    {
        Background* ret = new Background;
        ret->_coor = Coor::Create();
        return ret;
    }
 
    Background* Clone();
 
    void Set(gcSprite spr);
    void Set(Sprite9* spr9);
 
    void Clear();
    void SetOffset(const Position& offset);
    void SetSize(const Position& size);
    void SetColor(const Color& col);
    void SetSizeExtra(const Position& size);
 
    void SetCustomRender(CbCustomRender cb)
    {
        _cbRender = cb;
    }
 
    // todo 不会即时生效
    Cpt::ElementData& GetElementData() { return _cptElemData; }
 
    Position GetOffset();
    Position GetSize();
    Position GetSizeReal();
 
    Coor* GetCoor()
    {
        return _coor;
    }
    float GetOrder();
    float GetOrder(int offset)
    {
        return Math::OffsetOrder(GetOrder(), 0, 0, offset);
    }
 
    // TODO 刷新
    void SetWindowW(bool fixed) { _bWindowW = fixed; }
    void SetWindowH(bool fixed) { _bWindowH = fixed; }
 
    bool IsWindowW() { return _bWindowW; }
    bool IsWindowH() { return _bWindowH; }
 
    bool IsPickup();
 
    void Render();
 
    void SetOrder(float order);
 
    void SetUI(bool ui, bool change_sampler = true);
 
    void RenderDebug();

    void RefreshSize();
 
    Components* GetCpt() { return &_cpt; }
 
    ~Background()
    {
        delete _ui._spr9;
        delete _coor;
    }
private:
    Background() :
        _sizeExtra{},
        _bWindowW{ false },
        _bWindowH{ false },
        _cpt{ this }
    {
        _init_cpt();
    }
 
    struct UI
    {
        Type _type = Background::Type::NONE;
        gcSprite _spr;
        Sprite9* _spr9 = nullptr;
    };
 
    Coor* _coor;
    Position _sizeExtra;
    bool _bWindowW; // 填充窗口宽度
    bool _bWindowH; // 填充窗口高度
    UI _ui;
    CbCustomRender _cbRender;
 
    Components _cpt;
    Cpt::DeleteThis _cptDeleteThis;
    Cpt::SetOrder _cptSetOrder;
    Cpt::Render _cptRender;
    Cpt::IsPickup _cptIsPickup;
    Cpt::GetCoor _cptGetCoor;
    Cpt::SetSize _cptSetSize;
    Cpt::RenderDebug _cptRenderDebug;
    Cpt::ElementData _cptElemData;
 
    void _delete_this() { delete this; }
 
    void _init_cpt()
    {
        _cptDeleteThis = std::bind(&Background::_delete_this, this);
        _cptSetOrder = std::bind(&Background::SetOrder, this, std::placeholders::_1);
        _cptIsPickup = std::bind(&Background::IsPickup, this);
        _cptRender = std::bind(&Background::Render, this);
        _cptGetCoor = std::bind(&Background::GetCoor, this);
        _cptSetSize = std::bind(&Background::SetSize, this, std::placeholders::_1);
        _cptRenderDebug = std::bind(&Background::RenderDebug, this);
 
        _cpt.PushBack(&_cptDeleteThis);
        _cpt.PushBack(&_cptSetOrder);
        _cpt.PushBack(&_cptIsPickup);
        _cpt.PushBack(&_cptRender);
        _cpt.PushBack(&_cptGetCoor);
        _cpt.PushBack(&_cptSetSize);
        _cpt.PushBack(&_cptRenderDebug);
 
        _cpt.PushBack(&_cptElemData);
    }
 
};
 
 
}
 
 
#endif