.gitmodules

@@ -2,6 +2,9 @@
 	path = dependencies/imgui
 	url = https://github.com/ocornut/imgui.git
 	branch = docking
+[submodule "dependencies/imnodes"]
+	path = dependencies/imnodes
+	url = https://github.com/Nelarius/imnodes.git
 [submodule "dependencies/resource_embedder"]
 	path = dependencies/resource_embedder
 	url = https://timerix.ddns.net:3322/Timerix/resource_embedder.git

dependencies/imnodes

@@ -0,0 +1 @@
+Subproject commit 8563e1655bd9bb1f249e6552cc6274d506ee788b

dependencies/imnodes.config

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+DEP_WORKING_DIR='dependencies/imnodes'
+DEP_PRE_BUILD_COMMAND=''
+if [[ "$TASK" = *_dbg ]]; then
+    DEP_BUILD_COMMAND='cbuild -c ../imnodes.project.config build_static_lib_dbg'
+else
+    DEP_BUILD_COMMAND='cbuild -c ../imnodes.project.config build_static_lib'
+fi
+DEP_POST_BUILD_COMMAND=''
+DEP_CLEAN_COMMAND='cbuild clean -c ../imnodes.project.config'
+DEP_STATIC_OUT_FILES='../bin/libimnodes.a'
+DEP_DYNAMIC_OUT_FILES=''

dependencies/imnodes.project.config

@@ -0,0 +1,95 @@
+#!/usr/bin/env bash
+CBUILD_VERSION=2.1.2
+CONFIG_VERSION=1
+
+PROJECT="imnodes"
+CMP_C="gcc"
+CMP_CPP="g++"
+STD_C="c11"
+STD_CPP="c++11"
+WARN_C="-Wall -Wno-discarded-qualifiers -Wno-unused-parameter"
+WARN_CPP="-Wall -Wno-unused-parameter"
+SRC_C=""
+SRC_CPP="imnodes.cpp"
+
+# Directory with dependency configs.
+# See cbuild/example_dependency_configs
+DEPENDENCY_CONFIGS_DIR='dependencies'
+# List of dependency config files in DEPENDENCY_CONFIGS_DIR separated by space.
+ENABLED_DEPENDENCIES=''
+
+# OBJDIR structure:
+#  ├── objects/      - Compiled object files. Cleans on each call of build task
+#  ├── static_libs/  - Symbolic links to static libraries used by linker. Cleans on each call of build task.
+#  ├── static_libs/  - Symbolic links to dynamic libraries used by linker. Cleans on each call of build task.
+#  └── profile/      - gcc *.gcda profiling info files
+OBJDIR="../obj"
+OUTDIR="../bin"
+STATIC_LIB_FILE="lib$PROJECT.a"
+
+# header include directories
+INCLUDE="-I. -I../imgui -I../imgui/backends"
+
+# OS-specific options
+case "$OS" in
+    WINDOWS)
+        EXEC_FILE="$PROJECT.exe"
+        SHARED_LIB_FILE="lib$PROJECT.dll"
+        ;;
+    LINUX)
+        EXEC_FILE="$PROJECT"
+        SHARED_LIB_FILE="lib$PROJECT.so"
+        ;;
+    *)
+        error "operating system $OS has no configuration variants"
+        ;;
+esac
+
+# TASKS
+case "$TASK" in
+    # creates shared library
+    build_shared_lib)
+        C_ARGS="-O2 -fpic -flto -shared"
+        CPP_ARGS="$C_ARGS"
+        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE"
+        PRE_TASK_SCRIPT=
+        TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
+        POST_TASK_SCRIPT=
+        ;;
+    # creates shared library with debug symbols and no optimizations
+    build_shared_lib_dbg)
+        C_ARGS="-O0 -g3 -fpic -shared"
+        CPP_ARGS="$C_ARGS"
+        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE"
+        PRE_TASK_SCRIPT=
+        TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
+        POST_TASK_SCRIPT=
+        ;;
+    # creates static library
+    build_static_lib)
+        C_ARGS="-O2"
+        CPP_ARGS="$C_ARGS"
+        PRE_TASK_SCRIPT=
+        TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
+        POST_TASK_SCRIPT=
+        ;;
+    # creates static library with debug symbols and no optimizations
+    build_static_lib_dbg)
+        C_ARGS="-O0 -g3"
+        CPP_ARGS="$C_ARGS"
+        PRE_TASK_SCRIPT=
+        TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
+        POST_TASK_SCRIPT=
+        ;;
+    # deletes generated files
+    clean)
+        TASK_SCRIPT=cbuild/default_tasks/clean.sh
+        ;;
+    # nothing to do
+    "" | no_task)
+        ;;
+    # unknown task
+    *)
+        error "task <$TASK> not found"
+    ;;
+esac

project.config

@@ -16,7 +16,7 @@ SRC_CPP="$(find src -name '*.cpp')"
 # See cbuild/example_dependency_configs
 DEPENDENCY_CONFIGS_DIR='dependencies'
 # List of dependency config files in DEPENDENCY_CONFIGS_DIR separated by space.
-ENABLED_DEPENDENCIES='imgui precompiled'
+ENABLED_DEPENDENCIES='imnodes imgui precompiled'
 
 # OBJDIR structure:
 #  ├── objects/      - Compiled object files. Cleans on each call of build task

src/GUI/MainWindow.cpp

@@ -1,315 +0,0 @@
-#include "MainWindow.hpp"
-#include "backends/imgui_impl_sdl2.h"
-#include "backends/imgui_impl_opengl3.h"
-
-namespace ougge::GUI {
-
-f32 MainWindow::getDPI(){
-    int w=0, h=0;
-    SDL_GL_GetDrawableSize(sdl_window, &w, &h);
-    int sim_w=0, sim_h=0;
-    SDL_GetWindowSize(sdl_window, &sim_w, &sim_h);
-    f32 wdpi=(f32)w / sim_w;
-    f32 hdpi=(f32)h / sim_h;
-    f32 dpi=SDL_sqrtf(wdpi*wdpi + hdpi*hdpi);
-    return dpi;
-}
-
-void MainWindow::init(const char* window_title){
-    SDL_TRY(SDL_Init(SDL_INIT_VIDEO));
-    SDL_version v;
-    SDL_GetVersion(&v);
-    std::cout<<format("SDL version: %u.%u.%u\n", v.major, v.minor, v.patch);
-    // GL 3.0 + GLSL 130
-    const char* glsl_version = "#version 130";
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0));
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE));
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3));
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0));
-
-    // From 2.0.18: Enable native IME.
-#ifdef SDL_HINT_IME_SHOW_UI
-    SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
-#endif
-    
-    // Create window with graphics context
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1));
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24));
-    SDL_TRY( SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8));
-    SDL_WindowFlags window_flags = (SDL_WindowFlags)(
-        SDL_WINDOW_OPENGL |
-        SDL_WINDOW_RESIZABLE |
-        SDL_WINDOW_ALLOW_HIGHDPI);
-    sdl_window = SDL_CreateWindow(window_title,
-        SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
-        1280, 720, window_flags);
-    if(sdl_window == nullptr)
-        throw SDLException();
-    gl_context = SDL_GL_CreateContext(sdl_window);
-    if(gl_context == nullptr)
-        throw SDLException();
-    SDL_TRY( SDL_GL_MakeCurrent(sdl_window, gl_context));
-    SDL_TRY( SDL_GL_SetSwapInterval(1)); // Enable vsync
-
-    // Setup Dear ImGui context
-    IMGUI_CHECKVERSION();
-    ImGui::CreateContext();
-    ImGuiIO& io = ImGui::GetIO();
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls   
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;  // Enable Gamepad Controls
-    io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;     // Enable Docking
-    io.ConfigDockingTransparentPayload = true;
-    io.ConfigInputTextCursorBlink = false;
-    // io.ConfigViewportsNoTaskBarIcon = true;
-    io.ConfigWindowsMoveFromTitleBarOnly = true;
-
-    // Setup Platform/Renderer backends
-    if(ImGui_ImplSDL2_InitForOpenGL(sdl_window, gl_context) != true)
-        throw SDLException();
-    if(ImGui_ImplOpenGL3_Init(glsl_version) != true)
-        throw SDLException();
-
-    // Setup Dear ImGui style
-    ImGui::StyleColorsDark();
-}
-
-// Wait, poll and handle events (inputs, window resize, etc.)
-void MainWindow::poll_events(u16& frame_updates_requested, bool wait){
-    SDL_Event event;
-    if(wait){
-        // waits for first event in cpu-efficient way
-        SDL_TRY(SDL_WaitEvent(&event) != 1); 
-    }
-    // dont wait for event
-    else if(!SDL_PollEvent(&event))
-        return;
-    
-    do {
-        if(ImGui_ImplSDL2_ProcessEvent(&event))
-            frame_updates_requested=2;
-        switch(event.type){
-            case SDL_QUIT: {
-                close();
-                break;
-            }
-            case SDL_WINDOWEVENT: {
-                if(event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(sdl_window)){
-                    close();
-                }
-                break;
-            }
-        }
-    } while (SDL_PollEvent(&event)); // if there are more events, handles them
-}
-
-void ImGui_drawErrorWindow(bool* draw_error_window, std::string& msg){
-    ImGui::Begin("ERROR", draw_error_window);
-        ImGui::Text("%s", msg.c_str());
-    ImGui::End();
-}
-
-void MainWindow::draw_ui(){
-    static std::string error_message;
-    static bool draw_error_window = false;
-    try {
-        // Draw UI
-        if(draw_error_window)
-            ImGui_drawErrorWindow(&draw_error_window, error_message);
-        else {
-            draw_bg_window();
-            draw_debug_window();
-        }
-    }
-    catch(const std::exception& e){
-        error_message = "Catched exception: " + std::string(e.what());
-        draw_error_window = true;
-        std::cerr<<error_message<<std::endl;
-    }
-    catch(const char* cstr){
-        error_message = "Catched error message (const char*): " + std::string(cstr);
-        draw_error_window = true;
-        std::cerr<<error_message<<std::endl;
-    }
-    catch(const std::string& str){
-        error_message = "Catched error message (std::string): " + str;
-        draw_error_window = true;
-        std::cerr<<error_message<<std::endl;
-    }
-    catch(...){
-        error_message = "Catched unknown error";
-        draw_error_window = true;
-        std::cerr<<error_message<<std::endl;
-    }
-}
-
-void MainWindow::draw_frame(){
-    // Start the Dear ImGui frame
-    ImGui_ImplOpenGL3_NewFrame();
-    ImGui_ImplSDL2_NewFrame();
-    ImGui::NewFrame();
-
-    draw_ui();
-
-    // Rendering
-    ImGui::Render();
-    ImGuiIO& io = ImGui::GetIO();
-    glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
-    glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
-    glClear(GL_COLOR_BUFFER_BIT);
-    ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-    // Update and Render additional Platform Windows
-    // (Platform functions may change the current OpenGL context, so we save/restore it to make it easier to paste this code elsewhere.
-    //  For this specific demo app we could also call SDL_GL_MakeCurrent(window, gl_context) directly)
-    if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
-    {
-        SDL_Window* backup_current_window = SDL_GL_GetCurrentWindow();
-        SDL_GLContext backup_current_context = SDL_GL_GetCurrentContext();
-        ImGui::UpdatePlatformWindows();
-        ImGui::RenderPlatformWindowsDefault();
-        SDL_GL_MakeCurrent(backup_current_window, backup_current_context);
-    }
-
-    SDL_GL_SwapWindow(sdl_window);
-
-}
-
-void MainWindow::startAndWait(){
-    if(loop_running)
-        throw UsefulException("loop is already running");
-
-    // draw first frame
-    draw_frame();
-
-    u16 frame_updates_requested=1;
-    u64 prev_update_time_ms=SDL_GetTicks64();
-    loop_running=true;
-    // main loop
-    while(loop_running){
-        // waits for events
-        poll_events(frame_updates_requested, main_loop_wait_for_input);
-
-        if(frame_updates_requested==0)
-        {
-            u64 update_time_ms=SDL_GetTicks64();
-            if(update_time_ms >= prev_update_time_ms + 1000/fps_min){
-                // if frame rate < fps_min then requests frame draw
-                // works only if main_loop_wait_for_input = false
-                frame_updates_requested=1;
-                prev_update_time_ms=update_time_ms;
-            }
-            else {
-                // skips frame rendering and waits to limit fps
-                u32 frame_delay_ms=1000/fps_max;
-                SDL_Delay(frame_delay_ms);
-                continue;
-            }
-        }
-
-        // deaws requested number of frames
-        while(frame_updates_requested>0) {
-            draw_frame();
-            frame_updates_requested--;
-        }   
-    }
-
-    // Cleanup
-    MainWindow::destroy();
-}
-
-void MainWindow::close(){
-    loop_running=false;
-}
-
-void MainWindow::destroy(){
-    ImGui_ImplOpenGL3_Shutdown();
-    ImGui_ImplSDL2_Shutdown();
-    ImGui::DestroyContext();
-    SDL_GL_DeleteContext(gl_context);
-    SDL_DestroyWindow(sdl_window);
-    SDL_Quit();
-}
-
-void MainWindow::draw_bg_window(){
-    const ImGuiDockNodeFlags dockspace_flags =
-            ImGuiDockNodeFlags_PassthruCentralNode;
-    const ImGuiWindowFlags window_flags =
-        ImGuiWindowFlags_MenuBar |
-        ImGuiWindowFlags_NoDocking |
-        ImGuiWindowFlags_NoScrollbar |
-        ImGuiWindowFlags_NoScrollWithMouse |
-        ImGuiWindowFlags_NoBringToFrontOnFocus |
-        ImGuiWindowFlags_NoFocusOnAppearing |
-        ImGuiWindowFlags_NoMove |
-        ImGuiWindowFlags_NoResize |
-        ImGuiWindowFlags_NoCollapse |
-        ImGuiWindowFlags_NoTitleBar |
-        ImGuiWindowFlags_NoBackground;
-    // not dockable window that always bound to viewport
-    ImGuiViewport* viewport = ImGui::GetWindowViewport();
-    ImGui::SetNextWindowPos(viewport->Pos, ImGuiCond_Always);
-    ImGui::SetNextWindowSize(viewport->Size, ImGuiCond_Always);
-    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
-    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
-	ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
-    ImGui::Begin("bg_window", nullptr, window_flags);
-    ImGui::PopStyleVar(3);
-
-    // DockSpace
-    ImGuiID dockspace_id = ImGui::GetID("bg_dockspace");
-    ImGui::DockSpace(dockspace_id, ImVec2(0.0f, 0.0f), dockspace_flags);
-    
-    // MenuBar
-    if(ImGui::BeginMainMenuBar()){
-        if(ImGui::BeginMenu("test")){
-            if(ImGui::MenuItem("throw exception")){
-                ImGui::EndMenu();
-                ImGui::EndMainMenuBar();
-                ImGui::End();
-                throw UsefulException("example exception");
-            }
-            if(ImGui::MenuItem("throw const char*")){
-                ImGui::EndMenu();
-                ImGui::EndMainMenuBar();
-                ImGui::End();
-                throw "cptr";
-            }
-            if(ImGui::MenuItem("throw std::string")){
-                ImGui::EndMenu();
-                ImGui::EndMainMenuBar();
-                ImGui::End();
-                throw std::string("str");
-            }
-            if(ImGui::MenuItem("throw unknown")){
-                ImGui::EndMenu();
-                ImGui::EndMainMenuBar();
-                ImGui::End();
-                throw 111;
-            }
-            ImGui::EndMenu();
-        }
-        ImGui::EndMainMenuBar();
-    }
-
-    ImGui::End();
-}
-
-void MainWindow::draw_debug_window(){
-    ImGuiIO& io = ImGui::GetIO();
-
-    ImGui::Begin("Debug Options");
-    ImGui::ColorEdit3("clear_color", (float*)&clear_color);
-    ImGui::Checkbox("main_loop_wait_for_input", &main_loop_wait_for_input);
-    ImGui::Text("Application average %.3f ms/frame (%.2f FPS)", 1000.0f / io.Framerate, io.Framerate);
-    ImGui::Checkbox("Demo Window", &show_demo_window);
-    ImGui::Checkbox("Metrics/Debug Window", &show_metrics_window);
-    ImGui::End();
-
-    if (show_demo_window)
-        ImGui::ShowDemoWindow(&show_demo_window);
-
-    if (show_metrics_window)
-        ImGui::ShowMetricsWindow(&show_metrics_window);
-}
-
-}

src/GUI/MainWindow.hpp

@@ -1,51 +0,0 @@
-#pragma once
-
-#include <SDL.h>
-#include <SDL_opengl.h>
-#include <imgui.h>
-#include <iostream>
-#include <string>
-#include "../std.hpp"
-#include "../format.hpp"
-#include "exceptions.hpp"
-
-/// converts hex color to float vector
-#define RGBAHexToF(R8,G8,B8,A8) ImVec4(((u8)35)/255.0f, ((u8)35)/255.0f, ((u8)50)/255.0f, ((u8)255)/255.0f)
-/// converts float vector to hex color
-#define RGBAFToHex(VEC4) {(u8)(VEC4.x*255), (u8)(VEC4.y*255), (u8)(VEC4.z*255), (u8)(VEC4.w*255)}
-
-namespace ougge::GUI {
-
-#define default_font "DroidSans"
-
-class MainWindow {
-public:
-    ImVec4 clear_color = RGBAHexToF(35,35,50,255);
-    f32 default_font_size = 14.0f;
-    u8 fps_min = 30;
-    u8 fps_max = 60;
-
-private:
-    bool loop_running=false;
-    bool main_loop_wait_for_input=true;
-    bool show_demo_window = false;
-    bool show_metrics_window = false;
-    SDL_Window* sdl_window = nullptr;
-    SDL_GLContext gl_context = nullptr;
-
-public:
-    void init(const char* window_title);
-    void startAndWait();
-    void close();
-    f32 getDPI();
-
-private:
-    void destroy();
-    void poll_events(u16& frame_updates_requested, bool wait);
-    void draw_frame();
-    void draw_ui();
-    void draw_debug_window();
-    void draw_bg_window();
-};
-
-}

src/GUI/exceptions.cpp

@@ -1,12 +0,0 @@
-#include "exceptions.hpp"
-#include <SDL.h>
-
-namespace ougge::GUI {
-
-SDLException_::SDLException_(const std::string& _file,const  std::string& _func, int _line_n)
-    : UsefulException_(SDL_GetError(), _file, _func, _line_n)
-{
-    SDL_ClearError();
-}
-
-}

src/GUI/exceptions.hpp

@@ -1,16 +0,0 @@
-#pragma once
-
-#include "../UsefulException.hpp"
-
-namespace ougge::GUI {
-
-#define SDLException() SDLException_(__FILE__, __func__, __LINE__)
-
-class SDLException_ : public UsefulException_ {
-public:
-    SDLException_(const std::string& _file, const std::string& _func, int line_n);
-};
-
-#define SDL_TRY(EXPR) if(EXPR) throw SDLException();
-
-}

src/format.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
 #include <string>
-#include "std.hpp"
+#include "../dependencies/kerep/src/base/std.h"
 
 std::string _format(const std::string& format_str, const size_t args_count, ...);
 #define format(FORMAT_STR, ARGS...) _format(FORMAT_STR, count_args(ARGS) ,##ARGS)

src/main.cpp

@@ -1,34 +1,9 @@
 #define SDL_MAIN_HANDLED
-#include "GUI/MainWindow.hpp"
+#include <SDL.h>
 #include "std.hpp"
 #include <iostream>
 
-using namespace ougge;
-
 int main(int argc, const char** argv){
-    if(setlocale(LC_CTYPE, "C.UTF-8")!=0)
-        std::cerr<<"\e[93msetlocale failed!\n";
-
-    try {
-        GUI::MainWindow w;
-        w.init("ougge");
-        w.startAndWait();
-    }
-    catch(const std::exception& e){
-        std::cerr<<"Catched exception: "<<e.what()<<std::endl;
-        return -1;
-    }
-    catch(const char* cstr){
-        std::cerr<<"Catched error message (const char*): "<<cstr<<std::endl;
-        return -1;
-    }
-    catch(const std::string& str){
-        std::cerr<<"Catched error message (std::string): "<<str<<std::endl;
-        return -1;
-    }
-    catch(...){
-        std::cerr<<"Catched unknown error"<<std::endl;
-        return -1;
-    }
+    std::cout<<"UwU"<<std::endl;
     return 0;
 }