SDL 3 + curl thread download manager

software/library/library_manager.cpp

@@ -12,9 +12,16 @@ LibraryManager::LibraryManager() {}
 void LibraryManager::Initialize(const std::string &library_path)
 {
     m_library_path = library_path;
+    CheckDirectories();
     Scan();
 }
 
+void LibraryManager::CheckDirectories()
+{
+    std::filesystem::path dlDir = std::filesystem::path(m_library_path) / "store";
+    std::filesystem::create_directories(dlDir);
+}
+
 void LibraryManager::Scan()
 {
     std::filesystem::path directoryPath(m_library_path);

software/library/library_manager.h

@@ -24,12 +24,17 @@ public:
     void Scan();
 
     std::shared_ptr<StoryProject> NewProject();
+    void CheckDirectories();
 
     std::shared_ptr<StoryProject> GetStory(const std::string &uuid);
 
+    void SetStoreUrl(const std::string &store_url) { m_storeUrl = store_url; }
+    std::string GetStoreUrl() const { return m_storeUrl; }
+
 private:
     std::string m_library_path;
     std::vector<std::shared_ptr<StoryProject>> m_projectsList;
+    std::string m_storeUrl;
 };
 
 #endif // LIBRARYMANAGER_H

story-editor/CMakeLists.txt

@@ -60,24 +60,36 @@ add_compile_definitions(IMGUI_INCLUDE="imgui.h")
 add_subdirectory(libs/ImGuiFileDialog)
 
 # =========================================================================================================================
-# SDL
+# SDL2
 # =========================================================================================================================
-Set(FETCHCONTENT_QUIET FALSE)
 
+# FetchContent_Declare(
+#     sdl2
+#     GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
+#     GIT_TAG origin/SDL2
+#     GIT_SHALLOW TRUE
+#     GIT_PROGRESS TRUE
+# )
+
+# set(BUILD_SHARED_LIBS TRUE)
+# set(SDL_STATIC TRUE)
+# FetchContent_MakeAvailable(sdl2)
+
+# =========================================================================================================================
+# SDL3
+# =========================================================================================================================
 FetchContent_Declare(
-    sdl2
+    sdl3
     GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
-    GIT_TAG origin/SDL2
+    GIT_TAG prerelease-3.1.0
     GIT_SHALLOW TRUE
     GIT_PROGRESS TRUE
 )
 
 set(BUILD_SHARED_LIBS TRUE)
 set(SDL_STATIC TRUE)
-FetchContent_MakeAvailable(sdl2)
+FetchContent_MakeAvailable(sdl3)
-
+include_directories(${sdl3_SOURCE_DIR}/include)
-# add_subdirectory(libs/SDL)
-# include_directories(libs/SDL/include)
 
 # =========================================================================================================================
 # SDL3-Image
@@ -155,8 +167,8 @@ set(SRCS
     libs/imgui-node-editor/crude_json.cpp
     libs/ImGuiFileDialog/ImGuiFileDialog.cpp
 
-    ${imgui_SOURCE_DIR}/backends/imgui_impl_sdl2.cpp
+    ${imgui_SOURCE_DIR}/backends/imgui_impl_sdl3.cpp
-    ${imgui_SOURCE_DIR}/backends/imgui_impl_sdlrenderer2.cpp
+    ${imgui_SOURCE_DIR}/backends/imgui_impl_sdlrenderer3.cpp
     ${imgui_SOURCE_DIR}/backends/imgui_impl_opengl3.cpp
     ${imgui_SOURCE_DIR}/imgui.cpp
     ${imgui_SOURCE_DIR}/imgui_widgets.cpp
@@ -243,16 +255,17 @@ target_compile_definitions(${STORY_EDITOR_PROJECT} PUBLIC cimg_display=0)
 
 target_compile_definitions(${STORY_EDITOR_PROJECT} PUBLIC "$<$<CONFIG:DEBUG>:DEBUG>")
 
-target_link_directories(${STORY_EDITOR_PROJECT} PUBLIC ${sdl2_BINARY_DIR} ${curl_BINARY_DIR})
+target_link_directories(${STORY_EDITOR_PROJECT} PUBLIC ${sdl3_BINARY_DIR} ${curl_BINARY_DIR})
-message(${sdl2_BINARY_DIR})
+
-set(SDL2_BIN_DIR ${sdl2_BINARY_DIR})
+
+set(SDL2_BIN_DIR ${sdl3_BINARY_DIR})
 
 if(UNIX)
     target_link_libraries(${STORY_EDITOR_PROJECT}
         pthread
         OpenGL::GL
         dl
-        SDL2
+        SDL3
         libcurl_static
         OpenSSL::SSL OpenSSL::Crypto
     )

story-editor/src/gui.cpp

@@ -11,23 +11,34 @@ your use of the corresponding standard functions.
 #include <iostream>
 #include <filesystem>
 
-#include "imgui_impl_sdl2.h"
+
-#include "imgui_impl_sdlrenderer2.h"
+#include "imgui_internal.h"
-#include <stdio.h>
+// SDL2 ---------------------------------
-#include <SDL2/SDL.h>
+// #include "imgui_impl_sdl2.h"
+// #include "imgui_impl_sdlrenderer2.h"
+// #include <SDL2/SDL.h>
+// #if defined(IMGUI_IMPL_OPENGL_ES2)
+// #include <SDL2/SDL_opengles2.h>
+// #else
+// #include <SDL2/SDL_opengl.h>
+//#endif
+
+// SDL3 ---------------------------------
+#include "imgui_impl_sdl3.h"
+#include "imgui_impl_sdlrenderer3.h"
+#include <SDL3/SDL.h>
 #if defined(IMGUI_IMPL_OPENGL_ES2)
-#include <SDL2/SDL_opengles2.h>
+#include <SDL3/SDL_opengles2.h>
 #else
-#include <SDL2/SDL_opengl.h>
+#include <SDL3/SDL_opengl.h>
 #endif
 
+
 #include "IconsMaterialDesignIcons.h"
 #include "IconsFontAwesome5_c.h"
 #include "qoi.h"
 
 
-#include "platform_folders.h"
-
 static void glfw_error_callback(int error, const char* description)
 {
     fprintf(stderr, "GLFW Error %d: %s\n", error, description);
@@ -50,8 +61,6 @@ static std::string GetFileExtension(const std::string &fileName)
 // Simple helper function to load an image into a OpenGL texture with common settings
 bool LoadTextureFromFile(const char* filename, Gui::Image &img)
 {
-
-
     std::string ext = GetFileExtension(filename);
 
     SDL_Surface* surface = nullptr;
@@ -64,8 +73,12 @@ bool LoadTextureFromFile(const char* filename, Gui::Image &img)
         img.w = desc.width;
         img.h = desc.height;
 
-        surface = SDL_CreateRGBSurfaceFrom((void*)pixels, img.w, img.h, channels * 8, channels * img.w,
+        // SDL3
-                                           0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+        surface = SDL_CreateSurfaceFrom((void*)pixels, img.w, img.h, 4 * img.w, SDL_PIXELFORMAT_RGBA8888);
+
+        // SDL2
+        // surface = SDL_CreateRGBSurfaceFrom((void*)pixels, img.w, img.h, channels * 8, channels * img.w,
+        //                                    0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
 
         if (pixels != NULL)
         {
@@ -85,11 +98,11 @@ bool LoadTextureFromFile(const char* filename, Gui::Image &img)
 
 
         //SDL3
-        //    SDL_Surface* surface = SDL_CreateSurfaceFrom((void*)data, img.w, img.h, 4 * img.w, SDL_PIXELFORMAT_RGBA8888);
+        surface = SDL_CreateSurfaceFrom((void*)data, img.w, img.h, 4 * img.w, SDL_PIXELFORMAT_RGBA32);
 
         // SDL2
-        surface = SDL_CreateRGBSurfaceFrom((void*)data, img.w, img.h, channels * 8, channels * img.w,
+        // surface = SDL_CreateRGBSurfaceFrom((void*)data, img.w, img.h, channels * 8, channels * img.w,
-                                           0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+        //                                    0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
         stbi_image_free(data);
     }
 
@@ -105,8 +118,8 @@ bool LoadTextureFromFile(const char* filename, Gui::Image &img)
         fprintf(stderr, "Failed to create SDL texture: %s\n", SDL_GetError());
     }
 
-//    SDL_DestroySurface(surface); // SDL3
+   SDL_DestroySurface(surface); // SDL3
-    SDL_FreeSurface(surface); // SDL2
+    // SDL_FreeSurface(surface); // SDL2
 
 
     return true;
@@ -129,8 +142,11 @@ Gui::Gui()
 
 bool Gui::Initialize()
 {
-    // Setup SDL
+    // Setup SDL2
-    if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
+    // if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
+
+    // Setup SDL3
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMEPAD) != 0)
     {
         printf("Error: SDL_Init(): %s\n", SDL_GetError());
         return -1;
@@ -143,17 +159,17 @@ bool Gui::Initialize()
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN);
 
     // SDL3
-    //window = SDL_CreateWindow("Dear ImGui SDL3+SDL_Renderer example", 1280, 720, window_flags);
+    window = SDL_CreateWindow("Story Editor", 1280, 720, window_flags);
 
     // SDL2
-    window = SDL_CreateWindow("Story Editor", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    // window = SDL_CreateWindow("Story Editor", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
 
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
         return -1;
     }
-    renderer = SDL_CreateRenderer(window, 0, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
+    renderer = SDL_CreateRenderer(window, nullptr, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
     if (renderer == nullptr)
     {
         SDL_Log("Error: SDL_CreateRenderer(): %s\n", SDL_GetError());
@@ -170,6 +186,7 @@ bool Gui::Initialize()
     io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
     io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
     io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
+    io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable;
 
 
     io.Fonts->AddFontFromFileTTF( std::string(m_executablePath + "/fonts/roboto.ttf").c_str(), 20);
@@ -201,13 +218,12 @@ bool Gui::Initialize()
     // Setup Platform/Renderer backends
 
     // SDL3
-//    ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
+   ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
-//    ImGui_ImplSDLRenderer3_Init(renderer);
+   ImGui_ImplSDLRenderer3_Init(renderer);
-
 
     // SDL2
-    ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
+    // ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
-    ImGui_ImplSDLRenderer2_Init(renderer);
+    // ImGui_ImplSDLRenderer2_Init(renderer);
 
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
@@ -237,20 +253,19 @@ bool Gui::PollEvent()
     while (SDL_PollEvent(&event))
     {
         // SDL3
-        /*
+
         ImGui_ImplSDL3_ProcessEvent(&event);
         if (event.type == SDL_EVENT_QUIT)
             done = true;
         if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
             done = true;
-*/
 
         // SLD2
-        ImGui_ImplSDL2_ProcessEvent(&event);
+        // ImGui_ImplSDL2_ProcessEvent(&event);
-        if (event.type == SDL_QUIT)
+        // if (event.type == SDL_QUIT)
-            done = true;
+        //     done = true;
-        if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
+        // if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
-            done = true;
+        //     done = true;
 
     }
     return done;
@@ -262,12 +277,12 @@ void Gui::StartFrame()
     // Start the Dear ImGui frame
 
     // SDL3
-//    ImGui_ImplSDLRenderer3_NewFrame();
+   ImGui_ImplSDLRenderer3_NewFrame();
-//    ImGui_ImplSDL3_NewFrame();
+   ImGui_ImplSDL3_NewFrame();
 
     // SDL2
-    ImGui_ImplSDLRenderer2_NewFrame();
+    // ImGui_ImplSDLRenderer2_NewFrame();
-    ImGui_ImplSDL2_NewFrame();
+    // ImGui_ImplSDL2_NewFrame();
 
     ImGui::NewFrame();
 }
@@ -284,8 +299,8 @@ void Gui::EndFrame()
 
     ImGui::Render();
 
-    //ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData()); // SDL3
+    ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData()); // SDL3
-    ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData()); // SDL2
+    // ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData()); // SDL2
 
     SDL_RenderPresent(renderer);
 }
@@ -295,12 +310,12 @@ void Gui::Destroy()
     // Cleanup
 
     // SDL3
-//    ImGui_ImplSDLRenderer3_Shutdown();
+   ImGui_ImplSDLRenderer3_Shutdown();
-//    ImGui_ImplSDL3_Shutdown();
+   ImGui_ImplSDL3_Shutdown();
 
     // SDL2
-    ImGui_ImplSDLRenderer2_Shutdown();
+    // ImGui_ImplSDLRenderer2_Shutdown();
-    ImGui_ImplSDL2_Shutdown();
+    // ImGui_ImplSDL2_Shutdown();
 
 
     ImGui::DestroyContext();
@@ -495,7 +510,7 @@ void Gui::ApplyTheme()
 
 
 
-#include "imgui_internal.h"
+
 namespace ImGui {
 void LoadingIndicatorCircle(const char* label, const float indicator_radius,
                                    const ImVec4& main_color, const ImVec4& backdrop_color,

story-editor/src/gui.h

@@ -53,10 +53,10 @@ private:
     std::string m_executablePath;
 };
 
-namespace ImGui {
+// namespace ImGui {
-void LoadingIndicatorCircle(const char* label, const float indicator_radius,
+// void LoadingIndicatorCircle(const char* label, const float indicator_radius,
-                                   const ImVec4& main_color, const ImVec4& backdrop_color,
+//                                    const ImVec4& main_color, const ImVec4& backdrop_color,
-                                   const int circle_count, const float speed);
+//                                    const int circle_count, const float speed);
-}
+// }
 
 #endif // GUI_H

story-editor/src/i_story_manager.h

@@ -5,10 +5,26 @@
 #include <string>
 #include <memory>
 #include <list>
+#include <functional>
 
 #include "resource.h"
 #include "connection.h"
 
+template <typename T>
+struct Callback;
+
+template <typename Ret, typename... Params>
+struct Callback<Ret(Params...)> {
+    template <typename... Args>
+    static Ret callback(Args... args) {
+        return func(args...);
+    }
+    static std::function<Ret(Params...)> func;
+};
+
+template <typename Ret, typename... Params>
+std::function<Ret(Params...)> Callback<Ret(Params...)>::func;
+
 class IStoryManager
 {
 public:
@@ -36,8 +52,6 @@ public:
     virtual void Pause() = 0;
     virtual void Next() = 0;
     virtual void Previous() = 0;
-
-
 };
 
 #endif // I_STORY_MANAGER_H

story-editor/src/library_window.cpp

@@ -3,61 +3,44 @@
 #include "ImGuiFileDialog.h"
 #include <filesystem>
 #include "IconsMaterialDesignIcons.h"
+#include "i_story_manager.h"
+#include <functional>
 
-#define CPPHTTPLIB_OPENSSL_SUPPORT
+typedef int (*xfer_callback_t)(void *clientp, curl_off_t dltotal, curl_off_t dlnow,
-#include "httplib.h"
+                               curl_off_t ultotal, curl_off_t ulnow);
-#define CA_CERT_FILE "./ca-bundle.crt"
 
-#include <curl/curl.h>
 
-int xfer_callback(void *clientp, curl_off_t dltotal, curl_off_t dlnow,
+void download_file(CURL *curl,
-                  curl_off_t ultotal, curl_off_t ulnow)
+                   const std::string &url,
+                   const std::string &output_file,
+                   std::function<void(bool)> finished_callback)
 {
-    return 0;
-}
-
-void download_file(const std::string &output_file = "pi.txt")
-{
-
-    CURL *curl_download;
     FILE *fp;
     CURLcode res;
-    std::string url = "http://www.gecif.net/articles/mathematiques/pi/pi_1_million.txt";
 
-    curl_download = curl_easy_init();
+    if (curl)
-
-    if (curl_download)
     {
         //SetConsoleTextAttribute(hConsole, 11);
         fp = fopen(output_file.c_str(),"wb");
 
-        curl_easy_setopt(curl_download, CURLOPT_URL, url.c_str());
+        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
-        curl_easy_setopt(curl_download, CURLOPT_WRITEFUNCTION, NULL);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
-        curl_easy_setopt(curl_download, CURLOPT_WRITEDATA, fp);
-        curl_easy_setopt(curl_download, CURLOPT_NOPROGRESS, 0);
-        //progress_bar : the fonction for the progress bar
-        curl_easy_setopt(curl_download, CURLOPT_XFERINFOFUNCTION, xfer_callback);
-
-
         std::cout<<" Start download"<<std::endl<<std::endl;
 
-        res = curl_easy_perform(curl_download);
+        res = curl_easy_perform(curl);
 
         fclose(fp);
         if(res == CURLE_OK)
         {
-
             std::cout<< std::endl<< std::endl<<" The file was download with succes"<< std::endl;
         }
         else
         {
-
             std::cout<< std::endl << std::endl<<" Error"<< std::endl;
         }
-        curl_easy_cleanup(curl_download);
+
+        finished_callback(res == CURLE_OK);
     }
-
-
 }
 
 
@@ -66,36 +49,78 @@ LibraryWindow::LibraryWindow(IStoryManager &project, LibraryManager &library)
     , m_storyManager(project)
     , m_libraryManager(library)
 {
+    m_downloadThread = std::thread( std::bind(&LibraryWindow::DownloadThread, this) );
 
-    download_file();
+    m_store_url[0] = 0;
-
-    httplib::SSLClient cli("gist.githubusercontent.com", 443);
-    cli.set_ca_cert_path(CA_CERT_FILE);
-    cli.enable_server_certificate_verification(false);
-
-    if (auto res = cli.Get("/UnofficialStories/32702fb104aebfe650d4ef8d440092c1/raw/luniicreations.json")) {
-        std::cout << res->status << std::endl;
-        std::cout << res->get_header_value("Content-Type") << std::endl;
-        m_storeRawJson = res->body;
-        ParseStoreData();
-        //std::cout << res->body << std::endl;
-    } else {
-        std::cout << "error code: " << res.error() << std::endl;
-
-        auto result = cli.get_openssl_verify_result();
-        if (result) {
-            std::cout << "verify error: " << X509_verify_cert_error_string(result) <<std:: endl;
 }
 
+LibraryWindow::~LibraryWindow()
+{
+    // Cancel any pending download
+
+    if (m_curl)
+    {
+        m_downloadMutex.lock();
+        m_cancel = true;
+        m_downloadMutex.unlock();
+
     }
+
+    // Quit download thread
+    m_downloadQueue.push({"quit", ""});
+    if (m_downloadThread.joinable())
+    {
+        m_downloadThread.join();
+    }
+
+    curl_global_cleanup();
 }
 
 
-void LibraryWindow::ParseStoreData()
+void LibraryWindow::DownloadThread()
+{
+    for (;;)
+    {
+        auto cmd = m_downloadQueue.front();
+        m_downloadQueue.pop();
+
+        if (cmd.order == "quit")
+        {
+            curl_easy_cleanup(m_curl);
+
+            return;
+        }
+        else if (cmd.order == "dl")
+        {
+            download_file(m_curl, cmd.url, cmd.filename, cmd.finished_callback);
+        }
+    }
+}
+
+int LibraryWindow::TransferCallback(void *clientp, curl_off_t dltotal, curl_off_t dlnow,
+                  curl_off_t ultotal, curl_off_t ulnow)
+{
+    std::cout << "DL total: " << dltotal << ", now: " << dlnow << std::endl;   
+    m_downloadMutex.lock();
+    bool cancel = m_cancel;
+    m_downloadMutex.unlock();
+
+    if (cancel)
+    {
+        return 1; // Annuler la requête curl
+    }
+
+    m_transferProgress.push(TransferProgress(dltotal, dlnow));
+
+    return 0;
+}
+
+
+void LibraryWindow::ParseStoreData(bool success)
 {
     try {
-
+        std::ifstream f(m_storeIndexFilename);
-        nlohmann::json j = nlohmann::json::parse(m_storeRawJson);
+        nlohmann::json j = nlohmann::json::parse(f);
 
         m_store.clear();
         for (const auto &obj : j)
@@ -116,10 +141,27 @@ void LibraryWindow::ParseStoreData()
 
 void LibraryWindow::Initialize()
 {
+    // Try to download the store index file
+    m_curl = curl_easy_init();
 
+    if (m_curl)
+    {
+        curl_easy_setopt(m_curl, CURLOPT_WRITEFUNCTION, NULL);
+        curl_easy_setopt(m_curl, CURLOPT_NOPROGRESS, 0);
 
-
+        //progress_bar : the fonction for the progress bar
+        Callback<int(void *, curl_off_t, curl_off_t, curl_off_t, curl_off_t)>::func = std::bind(
+            &LibraryWindow::TransferCallback,
+            this,
+            std::placeholders::_1,
+            std::placeholders::_2,
+            std::placeholders::_3,
+            std::placeholders::_4,
+            std::placeholders::_5);
+        curl_easy_setopt(m_curl, CURLOPT_XFERINFOFUNCTION, static_cast<xfer_callback_t>(Callback<int(void *, curl_off_t, curl_off_t, curl_off_t, curl_off_t)>::callback));
     }
+}
+
 
 static bool canValidateDialog = false;
 inline void InfosPane(const char *vFilter, IGFDUserDatas vUserDatas, bool *vCantContinue) // if vCantContinue is false, the user cant validate the dialog
@@ -131,6 +173,14 @@ inline void InfosPane(const char *vFilter, IGFDUserDatas vUserDatas, bool *vCant
         *vCantContinue = canValidateDialog;
 }
 
+std::string LibraryWindow::ToLocalStoreFile(const std::string &url)
+{
+    auto filename = StoryProject::GetFileName(m_store_url);
+
+    filename = m_libraryManager.LibraryPath() + "/store/" + filename;
+    std::cout << "Store file: " << filename << std::endl;
+    return filename;
+}
 
 void LibraryWindow::Draw()
 {
@@ -178,8 +228,6 @@ void LibraryWindow::Draw()
             // ============================================================================
             if (ImGui::BeginTabItem("Local library ##LocalTabBar", nullptr, ImGuiTabItemFlags_None))
             {
-
-
                 if (ImGui::Button("Scan library"))
                 {
                     m_libraryManager.Scan();
@@ -228,10 +276,45 @@ void LibraryWindow::Draw()
             }
  
             // ============================================================================
-            // LOCAL TABLE
+            // STORE STORY LIST
             // ============================================================================
             if (ImGui::BeginTabItem("Remote Store##StoreTabBar", nullptr, ImGuiTabItemFlags_None))
             {
+                ImGui::InputTextWithHint("##store_url", "Store URL", m_store_url, IM_ARRAYSIZE(m_store_url));
+                ImGui::SameLine();
+                if (ImGui::Button("Load"))
+                {
+                    m_storeIndexFilename = ToLocalStoreFile(m_store_url);
+                    m_downloadQueue.push({
+                        "dl",
+                        m_store_url,
+                        m_storeIndexFilename,
+                        std::bind(&LibraryWindow::ParseStoreData, this, std::placeholders::_1)
+                    });
+                }
+
+                static TransferProgress progressItem;
+                static std::string currentDownload;
+                static float progress = 0.0f;
+                if (m_transferProgress.try_pop(progressItem))
+                {
+                    if (progressItem.total > 0)
+                    {
+                        // currentDownload = ""
+                        progress += (progressItem.current / progressItem.total);
+                    }
+                    else
+                    {
+                        progress = 0.0;
+                    }
+                }
+                // Typically we would use ImVec2(-1.0f,0.0f) or ImVec2(-FLT_MIN,0.0f) to use all available width,
+                // or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
+                ImGui::ProgressBar(progress, ImVec2(0.0f, 0.0f));
+                // ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+
+                // ImGui::Text("Current download: ");
+
                 if (ImGui::BeginTable("store_table", 3, tableFlags))
                 {
                     ImGui::TableSetupColumn("Title", ImGuiTableColumnFlags_WidthFixed);

story-editor/src/library_window.h

@@ -1,14 +1,41 @@
 #pragma once
 
+#include <thread>
 #include "window_base.h"
 #include "library_manager.h"
 #include "i_story_manager.h"
+#include "thread_safe_queue.h"
+
+#include <curl/curl.h>
 
 struct StoryInf {
     int age;
     std::string title;
 };
 
+struct DownloadCommand {
+    std::string order;
+    std::string url;
+    std::string filename;
+    std::function<void(bool)> finished_callback;
+};
+
+
+struct TransferProgress {
+    long total;
+    long current;
+
+    TransferProgress() {
+        total = 0;
+        current = 0;
+    }
+
+    TransferProgress(int t, int c) {
+        total = t;
+        current = c;
+    }
+};
+
 class LibraryWindow : public WindowBase
 {
 public:
@@ -17,13 +44,27 @@ public:
     void Initialize();
     virtual void Draw() override;
 
+    ~LibraryWindow();
 private:
     IStoryManager &m_storyManager;
     LibraryManager &m_libraryManager;
 
+    CURL *m_curl;
+    char m_store_url[1024];
+    std::thread m_downloadThread;
+    ThreadSafeQueue<DownloadCommand> m_downloadQueue;
+    ThreadSafeQueue<TransferProgress> m_transferProgress;
+    std::mutex m_downloadMutex;
+    bool m_cancel{false};
+
     std::vector<StoryInf> m_store;
+    std::string m_storeIndexFilename;
 
     std::string m_storeRawJson;
-    void ParseStoreData();
+    void ParseStoreData(bool success);
+    void DownloadThread();
+    int TransferCallback(void *clientp, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow);
+
+    std::string ToLocalStoreFile(const std::string &url);
 };
 

story-editor/src/main_window.cpp

@@ -1,6 +1,6 @@
 #include "main_window.h"
 #include <filesystem>
-#include <SDL.h>
+#include <SDL3/SDL.h>
 #include "platform_folders.h"
 
 #include "media_converter.h"
@@ -372,6 +372,8 @@ void MainWindow::DrawMainMenuBar()
 
 void MainWindow::Initialize()
 {
+    LoadParams();
+
     // GUI Init
     m_gui.Initialize();
   //  gui.ApplyTheme();
@@ -380,8 +382,9 @@ void MainWindow::Initialize()
     m_emulatorWindow.Initialize();
     m_nodeEditorWindow.Initialize();
     m_PropertiesWindow.Initialize();
+    m_libraryWindow.Initialize();
+
 
-    LoadParams();
 }
 
 
@@ -979,6 +982,9 @@ void MainWindow::LoadParams()
             m_libraryManager.Initialize(library_path);
         }
 
+        nlohmann::json store_url = j["store_url"];
+        m_libraryManager.SetStoreUrl(store_url);
+
     }
     catch(std::exception &e)
     {

story-editor/src/main_window.h

@@ -63,24 +63,6 @@ struct DebugContext
 };
 
 
-
-template <typename T>
-struct Callback;
-
-template <typename Ret, typename... Params>
-struct Callback<Ret(Params...)> {
-    template <typename... Args>
-    static Ret callback(Args... args) {
-        return func(args...);
-    }
-    static std::function<Ret(Params...)> func;
-};
-
-template <typename Ret, typename... Params>
-std::function<Ret(Params...)> Callback<Ret(Params...)>::func;
-
-
-
 class MainWindow : public IStoryManager, public IAudioEvent
 {
 public:

story-editor/src/node_editor_window.cpp

@@ -1,4 +1,6 @@
 #include "node_editor_window.h"
+
+
 #include "imgui.h"
 #include "imgui_internal.h"
 #include <iostream>