Initial commit

- Basic main window - Are you sure you want to exit modal - Basic settings window
2022-12-31 15:35:58 +07:00 · 2022-12-31 15:35:58 +07:00 · 6632e58e61
commit 6632e58e61
10 changed files with 440 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,4 @@
 *.o
 *.obj
 logmeow
 logmeow.exe
--- a/.gitmodules
+++ b/.gitmodules
@ -0,0 +1,3 @@
 [submodule "imgui"]
 	path = imgui
 	url = https://github.com/ocornut/imgui.git
--- a/91
+++ b/91
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 #
 # Cross Platform Makefile
 # Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
 #
 # You will need SDL2 (http://www.libsdl.org):
 # Linux:
 #   apt-get install libsdl2-dev
 # Mac OS X:
 #   brew install sdl2
 # MSYS2:
 #   pacman -S mingw-w64-i686-SDL2
 #
 #CXX = g++
 #CXX = clang++
 EXE = logmeow
 IMGUI_DIR = imgui
 SOURCES = main.cpp config.cpp event_loop.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
 SOURCES += $(IMGUI_DIR)/misc/cpp/imgui_stdlib.cpp $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 LINUX_GL_LIBS = -lGL
 CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/misc/cpp -I$(IMGUI_DIR)/backends
 CXXFLAGS += -g -Wall -Wformat
 LIBS =
 ##---------------------------------------------------------------------
 ## OPENGL ES
 ##---------------------------------------------------------------------
 ## This assumes a GL ES library available in the system, e.g. libGLESv2.so
 # CXXFLAGS += -DIMGUI_IMPL_OPENGL_ES2
 # LINUX_GL_LIBS = -lGLESv2
 ## If you're on a Raspberry Pi and want to use the legacy drivers,
 ## use the following instead:
 # LINUX_GL_LIBS = -L/opt/vc/lib -lbrcmGLESv2
 ##---------------------------------------------------------------------
 ## BUILD FLAGS PER PLATFORM
 ##---------------------------------------------------------------------
 ifeq ($(UNAME_S), Linux) #LINUX
 	ECHO_MESSAGE = "Linux"
 	LIBS += $(LINUX_GL_LIBS) -ldl `sdl2-config --libs`
 	CXXFLAGS += `sdl2-config --cflags`
 	CFLAGS = $(CXXFLAGS)
 endif
 ifeq ($(UNAME_S), Darwin) #APPLE
 	ECHO_MESSAGE = "Mac OS X"
 	LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl2-config --libs`
 	LIBS += -L/usr/local/lib -L/opt/local/lib
 	CXXFLAGS += `sdl2-config --cflags`
 	CXXFLAGS += -I/usr/local/include -I/opt/local/include
 	CFLAGS = $(CXXFLAGS)
 endif
 ifeq ($(OS), Windows_NT)
 	ECHO_MESSAGE = "MinGW"
 	LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl2`
 	CXXFLAGS += `pkg-config --cflags sdl2`
 	CFLAGS = $(CXXFLAGS)
 endif
 ##---------------------------------------------------------------------
 ## BUILD RULES
 ##---------------------------------------------------------------------
 %.o:%.cpp
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
 %.o:$(IMGUI_DIR)/%.cpp
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
 %.o:$(IMGUI_DIR)/misc/cpp/%.cpp
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
 %.o:$(IMGUI_DIR)/backends/%.cpp
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
 $(EXE): $(OBJS)
 	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
 clean:
 	rm -f $(EXE) $(OBJS)
--- a/config.cpp
+++ b/config.cpp
@ -0,0 +1,71 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
 #include <string>
 #include <fstream>
 #include "config.h"
 std::string get_config_path() {
    const char* path;
    path = getenv("XDG_CONFIG_HOME");
    if (path) {
        return std::string(path) + "/logmeow/config";
    }
    path = getenv("HOME");
    if (path) {
        return std::string(path) + "/.config/logmeow/config";
    }
    throw std::runtime_error("cannot find suitable config folder, please set XDG_CONFIG_HOME or HOME");
 }
 Config parse_config(FILE* file) {
    size_t line_capacity_size = 128 * sizeof(char);
    char* line = static_cast<char*>(malloc(line_capacity_size));
    if (line == nullptr) {
        throw std::bad_alloc();
    }
    Config config;
    while (true) {
        errno = 0;
        if (getline(&line, &line_capacity_size, file) < 0) {
            int errsv = errno;
            free(line);
            if (errsv == ENOMEM) {
                throw std::bad_alloc();
            } else if (errsv != 0) {
                throw std::system_error(errsv, std::generic_category(), "getline()");
            } else {
                break;
            }
        }
        if (line_capacity_size == 0 || line[0] == '\0' || line[0] == '#') {
            continue;
        }
        if (char* newline = strchr(line, '\n')) {
            *newline = '\0';
        }
        if (strncmp(line, "logcat_command=", 15 * sizeof(char)) == 0) {
            config.logcat_command = &line[16];
        } else {
            std::invalid_argument e = std::invalid_argument(std::string("unknown config line: ") + line);
            free(line);
            throw e;
        }
    }
    return config;
 }
 void write_config(std::ofstream& file, const Config& config) {
    file << "# This is an auto-generated file, comments made will be lost\n"
         << "# This is a poor man's config file \"format\", there are only three legal lines:\n"
         << "#     # a comment, only available at the start of a line\n"
         << "#     (an empty line, no whitespace)\n"
         << "#     key=value pairs, no spaces around the delimiter, and no unknown keys\n\n"
         << "logcat_command=" << config.logcat_command;
 }
--- a/config.h
+++ b/config.h
@ -0,0 +1,12 @@
 #pragma once
 #include <string>
 #include <fstream>
 struct Config {
    std::string logcat_command;
 };
 std::string get_config_path();
 Config parse_config(FILE* file);
 void write_config(std::ofstream& file, const Config& config);
--- a/event_loop.cpp
+++ b/event_loop.cpp
@ -0,0 +1,75 @@
 #include <imgui.h>
 #include <imgui_stdlib.h>
 #include "config.h"
 static inline void settings_window(Config& inactive_config, bool* show_settings_window) {
    // by default, the settings window is a bit cramped
    ImGui::SetNextWindowSize(ImVec2(575, 75), ImGuiCond_FirstUseEver);
    if (!ImGui::Begin("Settings", show_settings_window)) {
        ImGui::End();
        return;
    }
    ImGui::Text("Persistence coming soon(tm)");
    ImGui::InputTextWithHint("Logcat command", "adb logcat -Dv 'threadtime UTC epoch usec'", &inactive_config.logcat_command);
    ImGui::End();
 }
 static inline void main_window(Config& active_config, Config& inactive_config, bool* show_demo_window,
        bool* show_settings_window, bool* save_settings_when_settings_window_closed, bool* exit_requested_rev) {
    if (!ImGui::Begin("LogMeow", exit_requested_rev)) {
        ImGui::End();
        return;
    }
    ImGui::Checkbox("Show Dear ImGui Demo Window", show_demo_window);
    if (ImGui::Button("Settings")) {
        if (!*show_settings_window) {
            inactive_config = active_config;
        }
        *show_settings_window = true;
        *save_settings_when_settings_window_closed = true;
    }
    ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
    ImGui::End();
 }
 static inline void exit_modal_if_necessary(bool* run_event_loop) {
    if (ImGui::BeginPopupModal("Exit?", nullptr, ImGuiWindowFlags_NoResize)) {
        ImGui::Text("Are you sure you want to exit?");
        if (ImGui::Button("Yes", ImVec2(120, 0))) {
            *run_event_loop = false;
        }
        ImGui::SameLine();
        if (ImGui::Button("No", ImVec2(120, 0))) {
            ImGui::CloseCurrentPopup();
        }
        ImGui::SetItemDefaultFocus();
        ImGui::EndPopup();
    }
 }
 void event_loop(Config& active_config, bool* run_event_loop) {
    static bool show_demo_window = false;
    static bool show_settings_window = false;
    static bool save_settings_when_settings_window_closed = false;
    static bool exit_requested_rev = true;
    static Config inactive_config;
    if (show_demo_window) {
        ImGui::ShowDemoWindow(&show_demo_window);
    }
    if (show_settings_window) {
        settings_window(inactive_config, &show_settings_window);
    } else if (save_settings_when_settings_window_closed) {
        active_config = inactive_config;
    }
    if (!exit_requested_rev) {
        ImGui::OpenPopup("Exit?");
        exit_requested_rev = true;
    }
    exit_modal_if_necessary(run_event_loop);
    main_window(active_config, inactive_config, &show_demo_window, &show_settings_window, &save_settings_when_settings_window_closed, &exit_requested_rev);
 }
--- a/event_loop.h
+++ b/event_loop.h
@ -0,0 +1,5 @@
 #pragma once
 #include "config.h"
 void event_loop(Config& config, bool* run_event_loop);
--- a/1
+++ b/1
@ -0,0 +1 @@
 Subproject commit e57871bb95faec757e51214bc0e1ae29b13258ab
--- a/imgui.ini
+++ b/imgui.ini
@ -0,0 +1,20 @@
 [Window][Debug##Default]
 Pos=60,60
 Size=400,400
 Collapsed=0
 [Window][LogMeow]
 Pos=60,60
 Size=339,94
 Collapsed=0
 [Window][Exit?]
 Pos=549,324
 Size=264,71
 Collapsed=0
 [Window][Settings]
 Pos=88,228
 Size=575,75
 Collapsed=0
--- a/main.cpp
+++ b/main.cpp
@ -0,0 +1,158 @@
 #include <cstdio>
 #include <sys/stat.h>
 #include <imgui.h>
 #include <imgui_impl_sdl.h>
 #include <imgui_impl_opengl3.h>
 #include <SDL.h>
 #if defined(IMGUI_IMPL_OPENGL_ES2)
 #include <SDL_opengles2.h>
 #else
 #include <SDL_opengl.h>
 #endif
 #include "config.h"
 #include "event_loop.h"
 int main(int, char**)
 {
    Config config;
    FILE* config_file = nullptr;
    try {
        config_file = fopen(get_config_path().c_str(), "r");
        if (config_file) {
            config = parse_config(config_file);
        } else if (errno != ENOENT) {
            perror("Failed to open config file");
            return 1;
        }
    } catch (const std::exception& e) {
        fprintf(stderr, "Failed to parse config: %s\n", e.what());
        return 1;
    }
    if (config_file) {
        if (fclose(config_file)) {
            perror("Failed to close config file");
        }
    }
    // Setup SDL
    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems,
    // depending on whether SDL_INIT_GAMECONTROLLER is enabled or disabled.. updating to the latest version of SDL is recommended!)
    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
    {
        printf("Error: %s\n", SDL_GetError());
        return -1;
    }
    // Decide GL+GLSL versions
 #if defined(IMGUI_IMPL_OPENGL_ES2)
    // GL ES 2.0 + GLSL 100
    const char* glsl_version = "#version 100";
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 #elif defined(__APPLE__)
    // GL 3.2 Core + GLSL 150
    const char* glsl_version = "#version 150";
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG); // Always required on Mac
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
 #else
    // GL 3.0 + GLSL 130
    const char* glsl_version = "#version 130";
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 #endif
    // Create window with graphics context
    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
    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* window = SDL_CreateWindow("LogMeow", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
    SDL_GLContext gl_context = SDL_GL_CreateContext(window);
    SDL_GL_MakeCurrent(window, gl_context);
    SDL_GL_SetSwapInterval(1); // Enable vsync
    // Setup Dear ImGui context
    IMGUI_CHECKVERSION();
    ImGui::CreateContext();
    ImGuiIO& io = ImGui::GetIO(); (void)io;
    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;       // Enable Keyboard Controls
    //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
    // Setup Dear ImGui style
    ImGui::StyleColorsDark();
    //ImGui::StyleColorsLight();
    // Setup Platform/Renderer backends
    ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
    ImGui_ImplOpenGL3_Init(glsl_version);
    // 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.
    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
    // - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
    // - Read 'docs/FONTS.md' for more instructions and details.
    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
    //io.Fonts->AddFontDefault();
    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
    //IM_ASSERT(font != NULL);
    // Main loop
    bool run_event_loop = true;
    while (run_event_loop)
    {
        // Poll and handle events (inputs, window resize, etc.)
        // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
        // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
        // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
        // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
        SDL_Event event;
        while (SDL_PollEvent(&event))
        {
            ImGui_ImplSDL2_ProcessEvent(&event);
            if (event.type == SDL_QUIT) {
                run_event_loop = false;
            } else if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
                run_event_loop = false;
        }
        // Start the Dear ImGui frame
        ImGui_ImplOpenGL3_NewFrame();
        ImGui_ImplSDL2_NewFrame();
        ImGui::NewFrame();
        event_loop(config, &run_event_loop);
        // Rendering
        ImGui::Render();
        glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
        glClearColor(0.15f, 0.15f, 0.15f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);
        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
        SDL_GL_SwapWindow(window);
    }
    // Cleanup
    ImGui_ImplOpenGL3_Shutdown();
    ImGui_ImplSDL2_Shutdown();
    ImGui::DestroyContext();
    SDL_GL_DeleteContext(gl_context);
    SDL_DestroyWindow(window);
    SDL_Quit();
    return 0;
 }
		`@ -0,0 +1 @@`
							`Subproject commit e57871bb95faec757e51214bc0e1ae29b13258ab`