Calendar: Create basic object structure

CMakeLists.txt

@@ -22,11 +22,10 @@ project(vis
  
 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.
+add_executable(vis 
+    src/main.cpp 
+    src/calendar.cpp
     )
+
+find_library(NCURSES_LIB NAMES ncurses)
+target_link_libraries(vis ncurses)

RESOURCES.md

@@ -0,0 +1,7 @@
+# Resources for development 
+
+> **Note:** VIS mainly uses the NCURSES library, therefore, expect the majority of resources to be some sort of documentation for NCURSES.
+
+- [INVISIBLE_ISLAND - Ncurses Docs](https://invisible-island.net/ncurses/man/ncurses.3x.html)
+ - [TLDP - NCURSES Programming HOWTO](https://tldp.org/HOWTO/NCURSES-Programming-HOWTO/) 
+ - [JBWYATT - Ncurses Programming Guide](https://jbwyatt.com/ncurses.html)

src/calendar.cpp

@@ -0,0 +1,51 @@
+#include <time.h>
+#include "calendar.hpp"
+
+calendar_information::calendar_information() {
+    time_t current_time = time(NULL);  
+    struct tm *datetime = localtime(&current_time);
+    
+    current_day = datetime->tm_mday;
+    current_month = datetime->tm_mon+1;
+    current_year = datetime->tm_year + 1900;
+    current_month_days = Calendar::get_days_in_month(current_month, current_year);
+}
+
+int Calendar::get_days_in_month(int month, int year) {
+    tm date = {0};
+    date.tm_year = year - 1900; 
+    date.tm_mon = month; 
+    date.tm_mday = 0;
+
+    mktime(&date);
+    return date.tm_mday; 
+}
+
+void Calendar::set_day(int day) {
+    if (day > this->info.current_month_days) return; 
+    this->info.current_day = day; 
+}
+
+void Calendar::set_month(int month) {
+    if (month > 12) return;
+    this->info.current_month = month;
+    this->info.current_month_days = Calendar::get_days_in_month(this->info.current_month, this->info.current_year);
+    if (this->info.current_day > this->info.current_month_days) 
+        this->info.current_day = this->info.current_month_days; 
+}
+
+void Calendar::set_year(int year) {
+    this->info.current_year = year; 
+    this->info.current_month_days = Calendar::get_days_in_month(this->info.current_month, this->info.current_year); 
+    if (this->info.current_day > this->info.current_month_days) 
+        this->info.current_day = this->info.current_month_days; 
+}
+
+Calendar::Calendar(calendar_information *preinfo) {
+        this->info = *preinfo; 
+        if (preinfo != nullptr) {
+        return; 
+    }
+
+    this->info = calendar_information(); 
+}

src/calendar.hpp

@@ -0,0 +1,21 @@
+struct calendar_information {
+    int current_day; 
+    int current_month;
+    int current_month_days; 
+    int current_year; 
+
+    calendar_information();
+}; 
+
+class Calendar {
+    public: 
+        static int get_days_in_month(int month, int year);
+        void set_day(int day); 
+        void set_month(int month);
+        void set_year(int year);
+        calendar_information get_info();
+
+        Calendar(calendar_information *preinfo = nullptr); 
+    private: 
+        calendar_information info; 
+}; 

src/main.cpp

@@ -1,39 +1,23 @@
-#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> 
+#include <string.h>
+#include <ncurses.h>
+#include <curses.h>
+#include "calendar.hpp"
+
+#define MIN_WIDTH 100
+#define MIN_HEIGHT 40
 
 using namespace std; 
-using namespace ftxui; 
 
 int main() {
+    initscr();   
 
-    auto screen = ScreenInteractive::FitComponent();
+    int active_cell = 0; 
 
-    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));
-        };
+    for (;;) {
 
-        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);
+        refresh(); 
+    }
 
     return 0; 
 }