Initialize the project with basic code

.gitignore

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+build/ 
+compile_commands.json
+.ccls-cache/

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.26.3)
+
+include(FetchContent)
+ 
+set(FETCHCONTENT_UPDATES_DISCONNECTED TRUE)
+FetchContent_Declare(ftxui
+  GIT_REPOSITORY https://github.com/ArthurSonzogni/ftxui
+  GIT_TAG v3.0.0
+)
+ 
+FetchContent_GetProperties(ftxui)
+if(NOT ftxui_POPULATED)
+  FetchContent_Populate(ftxui)
+  add_subdirectory(${ftxui_SOURCE_DIR} ${ftxui_BINARY_DIR} EXCLUDE_FROM_ALL)
+endif()
+ 
+# ------------------------------------------------------------------------------
+project(vis
+    VERSION 1.0 
+    DESCRIPTION "Vi Scheduler (vis) is a simple TUI program built for managing your schedules in a calendar-like grid."
+    LANGUAGES CXX) 
+ 
+set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
+
+add_executable(vis src/main.cpp)
+target_include_directories(vis PRIVATE src)
+ 
+target_link_libraries(vis
+  PRIVATE ftxui::screen
+  PRIVATE ftxui::dom
+  PRIVATE ftxui::component # Not needed for this example.
+)

src/main.cpp

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+#include <stdio.h>
+#include <iostream>
+#include <ftxui/dom/elements.hpp>
+#include <ftxui/component/screen_interactive.hpp>
+#include <ftxui/component/component.hpp>
+#include <ftxui/component/event.hpp> 
+
+using namespace std; 
+using namespace ftxui; 
+
+int main() {
+
+    auto screen = ScreenInteractive::FitComponent();
+
+    auto component = Renderer([&screen] {
+        auto make_box = [](int x, int y, int i) {
+            string title = to_string(i);
+            return window(text(""), text(title) | hcenter | size(WIDTH, EQUAL, x) | size(HEIGHT, EQUAL, y));
+        };
+
+        Element calendar = hflow({
+            make_box(12,7,0),
+            make_box(7,7,1),
+            make_box(7,7,2),
+            make_box(7,7,3),
+            make_box(7,7,4),
+            make_box(7,7,5),
+            make_box(7,7,6),
+            make_box(7,7,7)
+        }); 
+         
+        return window(text("Vi Scheduler"), vbox(calendar));
+    });
+   
+
+    screen.Loop(component);
+
+    return 0; 
+}