From 11edae3fbf770695d1b263712ca4f3a40bdd70e3 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Sun, 3 Apr 2022 18:36:23 -0700
Subject: Changeset: 1 Branch comment: [] Initial commit

---
 source/main.cpp | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 source/main.cpp

(limited to 'source/main.cpp')

diff --git a/source/main.cpp b/source/main.cpp
new file mode 100644
index 0000000..b98d62b
--- /dev/null
+++ b/source/main.cpp
@@ -0,0 +1,97 @@
+#include "App.hpp"
+
+#define GLFW_INCLUDE_NONE
+#include <GLFW/glfw3.h>
+
+#include <backends/imgui_impl_glfw.h>
+#include <backends/imgui_impl_opengl3.h>
+#include <glad/glad.h>
+#include <imgui.h>
+#include <iostream>
+#include <string>
+
+#define IMGUI_IMPL_OPENGL_LOADER_CUSTOM 1
+#include <backends/imgui_impl_glfw.cpp>
+#include <backends/imgui_impl_opengl3.cpp>
+
+static void GlfwErrorCallback(int error, const char* description) {
+    fprintf(stderr, "Glfw Error %d: %s\n", error, description);
+}
+
+int main() {
+    if (!glfwInit()) {
+        return -1;
+    }
+
+    glfwSetErrorCallback(&GlfwErrorCallback);
+
+    // Decide GL+GLSL versions
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+    // GL ES 2.0 + GLSL 100
+    const char* glsl_version = "#version 100";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+#elif defined(__APPLE__)
+    // GL 3.2 + GLSL 150
+    const char* glsl_version = "#version 150";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac
+#else
+    // GL 3.0 + GLSL 130
+    const char* glsl_version = "#version 130";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+#endif
+
+    GLFWwindow* window = glfwCreateWindow(1280, 720, "ImGui Command Palette Example", nullptr, nullptr);
+    if (window == nullptr) {
+        return -2;
+    }
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1);
+
+    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
+        return -3;
+    }
+
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+    ImGui_ImplOpenGL3_Init(glsl_version);
+
+    App app;
+    while (!glfwWindowShouldClose(window)) {
+        glfwPollEvents();
+
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+
+        app.Show();
+
+        ImGui::Render();
+        int display_w, display_h;
+        glfwGetFramebufferSize(window, &display_w, &display_h);
+        glViewport(0, 0, display_w, display_h);
+        auto clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+        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());
+
+        glfwSwapBuffers(window);
+    }
+
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+
+    ImGui::DestroyContext();
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+
+    return 0;
+}
-- 
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