gui_file_icons.h

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#pragma once
 
// The icons the OS shows for files and folders, as picture icons for a file view.
 
#include <gui_core/style/gui_style_text.h>
 
#include <cstdint>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
 
namespace tachyon
{
    class ITextSystem;


    class FileIcons
    {
    public:
        explicit FileIcons(ITextSystem& textSystem, uint32_t pixels = 48);
 
        IconID Get(std::string_view name, bool isFolder);
        IconID OpenFolder();

        static std::string Extension(std::string_view name);
 
    private:
        IconID Read(const std::string& key, bool isFolder, bool open);
 
        ITextSystem&                            m_textSystem;
        uint32_t                                m_pixels;
        std::unordered_map<std::string, IconID> m_icons;   
    };
 
#ifdef _WIN32
    namespace detail
    {
        bool IconPixels(void* icon, uint32_t& width, uint32_t& height, std::vector<uint8_t>& rgba);
    }
#endif

}