Method BuildSortByKey

utils/uicommon/imgui.cpp:1915–1929

For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.

// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
void ImGuiStorage::BuildSortByKey()
{
    struct StaticFunc
    {
        static int IMGUI_CDECL PairCompareByID(const void* lhs, const void* rhs)
        {
            // We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
            if (((const ImGuiStoragePair*)lhs)->key > ((const ImGuiStoragePair*)rhs)->key) return +1;
            if (((const ImGuiStoragePair*)lhs)->key < ((const ImGuiStoragePair*)rhs)->key) return -1;
            return 0;
        }
    };
    if (Data.Size > 1)
        ImQsort(Data.Data, (size_t)Data.Size, sizeof(ImGuiStoragePair), StaticFunc::PairCompareByID);
}

int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
{