dl_ui_window.h

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#pragma once
 
#ifndef DL_DISABLE_RENDER
#include "misc/dl_component_use.h"
#include "ui/dl_ui_background.h"
#include "ui/dl_ui_panel.h"
 
namespace dl::UI
{
class Window
{
    friend class Manager;
public:
    virtual void Update()
    {
        if (!_bVisible)
            return;
        _panel->Update();
    }
 
    void Render()
    { }
 
    template<typename T>
    T* Cast()
    {
        return dynamic_cast<T*>(this);
    }
 
    bool IsPickup()
    {
        return _panel->IsPickup();
    }
 
    bool IsClickClose()
    {
        return _btnClose && _btnClose->IsClick();
    }
    
    float GetOrder() { return _panel->GetOrder(); }

    void SetOrder(float order)
    {
        _panel->SetOrder(order);
        if (_bg)
            _bg->SetOrder(Math::OffsetOrder(order, 0, 0, 1));
        if (_btnClose)
            _btnClose->SetOrder(Math::OffsetOrder(order, 0, 0, -2));
    }

    void SetSize(const Position& size)
    {
        _panel->SetSize(size);
        _cptElemData._size = size;
    }
 
    void Center()
    {
        _panel->SetPosScale({ 0.5f, 0.5f });
        _panel->SetAlign(Align::CC);
    }

    void SetBackground(UI::Background* bg, bool auto_size = true);
 
    UI::Background* GetBackground() { return _bg; }

    void SetButtonClose(UI::Button* btn);
    UI::Button* GetButtonClose() { return _btnClose; }

    void SetVisible(bool visible);
    bool IsVisible() { return _bVisible; }
 
 
    // 进入窗口管理器后有效
    //void SetWindowFlag(std::string_view flag) { _flag = std::string{ flag }; }
    void SetWindowCache(bool cache) { _bCache = cache; }
    void SetWindowModal(bool modal) { _bModal = modal; }
 
    Panel* GetPanel() { return _panel; }
    Coor* GetCoor() { return _panel->GetCoor(); }
 
    void RenderDebug()
    { }

    void ExFastSet();
 
    Components* GetCpt() { return &_cpt; }
 
 
    virtual ~Window();
protected:
    Window() :
        _cpt{ this },
        _bg{ nullptr },
        _btnClose{ nullptr },
        _bCache{ false },
        _bModal{ false },
        _bVisible{ true },
        _bInManager{ false }
    {
        _init_cpt();
        _init();
    }
    Panel* _panel;
private:
    std::string _name;  // 唯一名字（管理器内，同名字窗口显示会顶掉，空表示独立窗口）
    bool _bCache;       // 缓存窗口（提高显示速度）
    bool _bModal;       // 模态窗口（用户必须先处理自己，不会被顶掉）
    bool _bVisible;     // 是否可见
    bool _bInManager;   // 是否由g_ui管理
 
    Background* _bg;
    Button* _btnClose;
    Cpt::Drag _drag;
 
    Components _cpt;
    Cpt::DeleteThis _cptDeleteThis;
    Cpt::SetOrder _cptSetOrder;
    Cpt::Update _cptUpdate;
    Cpt::Render _cptRender;
    Cpt::GetCoor _cptGetCoor;
    Cpt::RenderDebug _cptRenderDebug;
    Cpt::ElementData _cptElemData;
 
    void _delete_this() { delete this; } 
 
    void _init_cpt()
    {
        _cptDeleteThis = std::bind(&Window::_delete_this, this);
        _cptSetOrder = std::bind(&Window::SetOrder, this, std::placeholders::_1);
        _cptUpdate = std::bind(&Window::Update, this);
        _cptRender = std::bind(&Window::Render, this);
        _cptGetCoor = std::bind(&Window::GetCoor, this);
        _cptRenderDebug = std::bind(&Window::RenderDebug, this);
 
        _cpt.PushBack(&_cptDeleteThis);
        _cpt.PushBack(&_cptSetOrder);
        _cpt.PushBack(&_cptUpdate);
        _cpt.PushBack(&_cptRender);
        _cpt.PushBack(&_cptGetCoor);
        _cpt.PushBack(&_cptRenderDebug);
        
        _cpt.PushBack(&_cptElemData);
    }
    
    void _init();
 
    void _refresh_order_bg(float order)
    {
        if (_bg)
            _bg->SetOrder(Math::OffsetOrder(order, 0, 0, 1));
        
    }
    void _refresh_order_btn_close(float order)
    {
        if (_btnClose)
            _btnClose->SetOrder(Math::OffsetOrder(order, 0, 0, -2));
    }
};
}
 
#endif