MyGUI_ControllerManager.cpp

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */

#include "MyGUI_Precompiled.h"
#include "MyGUI_Gui.h"
#include "MyGUI_ControllerManager.h"
#include "MyGUI_WidgetManager.h"
#include "MyGUI_FactoryManager.h"

#include "MyGUI_ControllerEdgeHide.h"
#include "MyGUI_ControllerFadeAlpha.h"
#include "MyGUI_ControllerPosition.h"

namespace MyGUI
{

    template <> ControllerManager* Singleton<ControllerManager>::msInstance = nullptr;
    template <> const char* Singleton<ControllerManager>::mClassTypeName = "ControllerManager";

    ControllerManager::ControllerManager() :
        mIsInitialise(false),
        mCategoryName("Controller")
    {
    }

    void ControllerManager::initialise()
    {
        MYGUI_ASSERT(!mIsInitialise, getClassTypeName() << " initialised twice");
        MYGUI_LOG(Info, "* Initialise: " << getClassTypeName());

        WidgetManager::getInstance().registerUnlinker(this);

        FactoryManager::getInstance().registerFactory<ControllerEdgeHide>(mCategoryName);
        FactoryManager::getInstance().registerFactory<ControllerFadeAlpha>(mCategoryName);
        FactoryManager::getInstance().registerFactory<ControllerPosition>(mCategoryName);

        MYGUI_LOG(Info, getClassTypeName() << " successfully initialized");
        mIsInitialise = true;
    }

    void ControllerManager::shutdown()
    {
        MYGUI_ASSERT(mIsInitialise, getClassTypeName() << " is not initialised");
        MYGUI_LOG(Info, "* Shutdown: " << getClassTypeName());

        FactoryManager::getInstance().unregisterFactory<ControllerEdgeHide>(mCategoryName);
        FactoryManager::getInstance().unregisterFactory<ControllerFadeAlpha>(mCategoryName);
        FactoryManager::getInstance().unregisterFactory<ControllerPosition>(mCategoryName);

        WidgetManager::getInstance().unregisterUnlinker(this);
        clear();

        MYGUI_LOG(Info, getClassTypeName() << " successfully shutdown");
        mIsInitialise = false;
    }

    void ControllerManager::clear()
    {
        for (ListControllerItem::iterator iter = mListItem.begin(); iter != mListItem.end(); ++iter)
        {
            delete (*iter).second;
        }
        mListItem.clear();
    }

    ControllerItem* ControllerManager::createItem(const std::string& _type)
    {
        IObject* object = FactoryManager::getInstance().createObject(mCategoryName, _type);
        return object == nullptr ? nullptr : object->castType<ControllerItem>();
    }

    void ControllerManager::addItem(Widget* _widget, ControllerItem* _item)
    {
        // если виджет первый, то подписываемся на кадры
        if (mListItem.empty())
            Gui::getInstance().eventFrameStart += newDelegate(this, &ControllerManager::frameEntered);

        // подготавливаем
        _item->prepareItem(_widget);

        for (ListControllerItem::iterator iter = mListItem.begin(); iter != mListItem.end(); ++iter)
        {
            // такой уже в списке есть
            if ((*iter).first == _widget)
            {
                if ((*iter).second->getTypeName() == _item->getTypeName())
                {
                    delete (*iter).second;
                    (*iter).second = _item;
                    return;
                }
            }
        }

        // вставляем в самый конец
        mListItem.push_back(PairControllerItem(_widget, _item));
    }

    void ControllerManager::removeItem(Widget* _widget)
    {
        // не удаляем из списка, а обнуляем, в цикле он будет удален
        for (ListControllerItem::iterator iter = mListItem.begin(); iter != mListItem.end(); ++iter)
        {
            if ((*iter).first == _widget) (*iter).first = nullptr;
        }
    }

    void ControllerManager::_unlinkWidget(Widget* _widget)
    {
        removeItem(_widget);
    }

    void ControllerManager::frameEntered(float _time)
    {
        for (ListControllerItem::iterator iter = mListItem.begin(); iter != mListItem.end(); /*added in body*/)
        {
            if (nullptr == (*iter).first)
            {
                delete (*iter).second;
                // удаляем из списка, итератор не увеличиваем и на новый круг
                iter = mListItem.erase(iter);
                continue;
            }

            if ((*iter).second->addTime((*iter).first, _time))
            {
                ++iter;
                continue;
            }

            // на следующей итерации виджет вылетит из списка
            (*iter).first = nullptr;
        }

        if (mListItem.empty())
            Gui::getInstance().eventFrameStart -= newDelegate(this, &ControllerManager::frameEntered);
    }

    const std::string& ControllerManager::getCategoryName() const
    {
        return mCategoryName;
    }

} // namespace MyGUI