uart dialog

include/tui.h

@@ -5,4 +5,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#define MIN_X_TERMINAL_SIZE 80
+#define MIN_Y_TERMINAL_SIZE 30
+
+void uartDialog(int terminal_x, int terminal_y);
+
 #endif

src/main.c

@@ -3,8 +3,14 @@
 #include <stdlib.h>
 #include <pthread.h>
 #include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <termios.h> 
 
 #include "users.h"
+#include "tui.h"
+
+
 
 void *uartListener(void *arg)
 {
@@ -15,11 +21,17 @@ void *uartListener(void *arg)
 int main(int argc, char const *argv[])
 {
     int y_max, x_max;
+    char * uart_address;
     pthread_t uart_thread;
 
     initscr();
 
     getmaxyx(stdscr, y_max, x_max);
+    if (x_max <= MIN_X_TERMINAL_SIZE || y_max <= MIN_Y_TERMINAL_SIZE)
+    {
+        puts("Terminal is too small. Exiting...\n");
+        return EXIT_FAILURE;
+    }
 
     noecho();
     noraw();
@@ -30,9 +42,12 @@ int main(int argc, char const *argv[])
     erase();
     refresh();
 
+    uartDialog(x_max, y_max);
+
     pthread_create(&uart_thread, NULL, uartListener, NULL);
 
     //
+    getch();
 
     pthread_join(uart_thread, NULL);
 

src/tui.c

@@ -1,3 +1,38 @@
 #include <ncurses.h>
 #include <stdio.h>
-#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+
+void uartDialog(int terminal_x, int terminal_y)
+{
+    char *prompt = "Please enter UART device address for RFID reader (probably /dev/ttyUSB0): ";
+    char *header = "Enter UART Address";
+
+    int win_height = 15;
+    int win_width = 80;
+    int start_y = (terminal_y - win_height) / 2;
+    int start_x = (terminal_x - win_width) / 2;
+
+    start_color();
+    init_pair(1, COLOR_BLACK, COLOR_WHITE);
+
+    WINDOW *uartwin = newwin(win_height, win_width, start_y, start_x);
+
+    wbkgd(uartwin, COLOR_PAIR(1));
+
+    box(uartwin, 0, 0);
+    wattron(uartwin, COLOR_PAIR(1));
+    mvwprintw(uartwin, 0, (win_width - strlen(header)) / 2, "%s", header);
+    mvwprintw(uartwin, 3, (win_width - strlen(prompt)) / 2, "%s", prompt);
+    wattroff(uartwin, COLOR_PAIR(1));
+    wrefresh(uartwin);
+
+    getch();
+
+    wclear(uartwin);
+    wrefresh(uartwin);
+    touchwin(stdscr);
+    refresh();
+    delwin(uartwin);
+    refresh();
+}