IconSet.h

// Copyright eeGeo Ltd (2012-2014), All Rights Reserved

#pragma once

#include "Types.h"
#include "IconDefinition.h"
#include "AsyncTexturing.h"
#include <vector>
#include <string>

namespace Eegeo
{
    namespace Icons
    {
        struct IconSetTexturePageInfo
        {
            IconSetTexturePageInfo(const std::string& fileName, int width, int height)
            : textureFileName(fileName)
            , textureWidth(width)
            , textureHeight(height)
            {}
            
            std::string textureFileName;
            int textureWidth;
            int textureHeight;
        };
        
        class IconSet : private Eegeo::NonCopyable
        {
        public:
            
            typedef std::string TIdType;
            typedef std::vector<Rendering::AsyncTexturing::IAsyncTexture*> TTextureList;
            typedef std::vector<IconSetTexturePageInfo> TTexturePageInfoList;
            
            IconSet(const TIdType& id,
                    IconDefinitionRepository* pIconDefinitions,
                    const TTexturePageInfoList& texturePageInfoList,
                    Rendering::AsyncTexturing::IAsyncTextureRequestor& asyncTextureRequestor);
            ~IconSet();
            
            const TIdType& GetId() const { return m_id; }
            bool HasIconDefinition(const IconDefinition::IdType& key) const;
            const IconDefinition& GetIconDefinition(const IconDefinition::IdType& key) const;
            const TTextureList& GetTextureList() const { return m_textureList; }
            const TTexturePageInfoList& GetTexturePageInfoList() const { return m_texturePageInfoList; }
            
        private:
            
            void UnloadTextures();
            void ClearDefinitions();
            
            void Validate(int textureCount);
            void LoadIconSetPageTextures(Rendering::AsyncTexturing::IAsyncTextureRequestor& asyncTextureRequestor,
                                         const TTexturePageInfoList& textureNames);
            
            TIdType m_id;
            IconDefinitionRepository* m_pIconDefinitions;
            TTextureList m_textureList;
            TTexturePageInfoList m_texturePageInfoList;

        };
    }
}