dl_component_use.h

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#pragma once
 
#include "base/dl_type_def.h"
#include "misc/dl_component.h"
#include "io/dl_input.h"
 
namespace dl
{
namespace Cpt
{
    using IsPickup = Function<std::function<bool()>, str_uid("IsPickup")>;
    using IsSelect = Function<std::function<bool()>, str_uid("IsSelect")>;
    using IsClick = Function<std::function<bool()>, str_uid("IsClick")>;
    using IsDown = Function<std::function<bool()>, str_uid("IsDown")>;
    using GetCoor = Function<std::function<dl::Coor* ()>, str_uid("GetCoor")>;
    using GetOrder = Function<std::function<float()>, str_uid("GetOrder")>;
    using Update = Function<std::function<void()>, str_uid("Update")>;
    using Render = Function<std::function<void()>, str_uid("Render")>;
    using SetOrder = Function<std::function<void(float)>, str_uid("SetOrder")>;
    using SetSelect = Function<std::function<void(bool)>, str_uid("SetSelect")>;
    using DeleteThis = Function<std::function<void()>, str_uid("DeleteThis")>;
    using Clone = Function<std::function<Components* ()>, str_uid("Clone")>;
    using RenderDebug = Function<std::function<void()>, str_uid("RenderD")>;
    using SetSize = Function<std::function<void(const Position& size)>, str_uid("SetSize")>;
    using GetSize = Function<std::function<Position(void)>, str_uid("GetSize")>;
    using CustomTag = Variable<int, str_uid("CustomTag")>;
    using CustomName = Variable<std::string, str_uid("CustomName")>;

    class Lang
    {
    public:
        std::array<std::string, 2> _str;
        std::function<void(std::string_view, std::string_view)> _func;
    };

    class ElementData
    {
    public:
        ElementData() :
            _size{},
            _anchor{},
            _pos{},
            _hv{ Align::LT },
            _orderOffset{ 0 },
            _bRunAble{ true },
            _bUpdateAble{ true },
            _bRenderAble{ true },
            _bParentW{ false },
            _bParentH{ false }
        {}

        Position GetOffset() const
        {
            return _pos - (Align::Size2Anchor(_size, _hv) + _anchor);
        }

        Position GetSize() const
        {
            return _size;
        }

        Position GetAnchor() const
        {
            return _anchor;
        }

        int GetOrderOffset()
        {
            return _orderOffset;
        }

        RectF GetRect()
        {
            return createRectF(GetOffset(), GetSize());
        }
    public:
        Position _size;
        Position _anchor;
        Position _pos;      // 额外偏移
        Align::Direction2 _hv;
        int _orderOffset;
 
        bool _bRunAble;        // 可运行
        bool _bUpdateAble;  // 可更新
        bool _bRenderAble;  // 可绘制
 
        bool _bParentW; // 跟随panel宽度
        bool _bParentH; // 跟随panel高度
    };

    class Drag
    {
    public:
        bool _bEnable;
        bool _bControlPanel;// 独立使用时无效（因为没有父Panel）
        RectF _areaPickup;  // 拾取范围
        RectF _areaRange;    // 拖拽范围
        MouseCode _key;        // 响应按钮
 
        Drag() :
            _bEnable{ true },
            _bControlPanel{ false },
            _areaPickup{},
            _areaRange{},
            _key{ MouseCode::LEFT },
            _state{ 0 },
            _xyClick{},
            _posOld{}
        {}

        void Update(Coor* coor, bool is_pickup);
    public:
        int _state; // 0.未点击 1.拖拽中
        Point _xyClick; // 拖拽点击位置（世界）
        Position _posOld;
        Position _posMove;
    };
}
 
}