minide.cpp

#include <ncurses.h>
#include <string.h>

const char * words[] = {
	"This", "is", "a", "list", "of", "words!"
};

const char * modes[] = {
	"[0] Editor", "[1] Keypress"
};

const char BKSPACE = 127;

int mode;
const int MODE_COUNT = 2;
const int MODE_EDITOR = 0, MODE_KEYPRESS = 1;

unsigned int editor_pos = 14;
char editor_string[256] = "Hello world! :)";

/* All this function does is clear and show the screen again. */
void show_screen(char b);

/* Fills the line with spaces. */
void fill(int ln);

/* Keypress mode code. /b/ is the key pressed. */
void mode_keypress(char b);

/* Editor mode code. /b/ is the key pressed. */
void mode_editor(char b);

/* Finds the amount of newline characters within /string/. */
int lines(char * string);

int main()
{
	initscr();
	if (has_colors() == FALSE)
	{
		mvwprintw(stdscr, 0, 0, "Your terminal doesn't support color. Oh well.\n");
		mvwprintw(stdscr, 1, 0, "~ Press any key to quit");
		getch();
		endwin();
		return 1;
	}
	start_color();
	
	init_pair(1, COLOR_WHITE, COLOR_BLACK);
	init_pair(2, COLOR_BLACK, COLOR_WHITE);
	
	while (true)
	{
		char b = getch();
		show_screen(b);
	}
	endwin();
}

void show_screen(char b)
{
	erase();
	
	if (b == '`')
	{
		mode++;
		if (mode == MODE_COUNT) mode = 0;
	}
	
	attron(COLOR_PAIR(2));
		fill(0);
		mvwprintw(stdscr, 0, 0, "~~ Mode: %s", modes[mode]);
	attroff(COLOR_PAIR(2));
	
	if (mode == MODE_KEYPRESS)
	{
		mode_keypress(b);
	}
	else if (mode == MODE_EDITOR)
	{
		mode_editor(b);
	}
	refresh();
}

void fill(int ln)
{
	int wd = 0, wh = 0;
	getmaxyx(stdscr, wh, wd);
	for (int i = 0; i < wd; i++)
	{
		mvwprintw(stdscr, ln, i, " ");
	}
}

void mode_keypress(char b)
{
	attron(COLOR_PAIR(1));
		mvwprintw(stdscr, 1, 0, "Character: %c | Decimal: %d", b, (int)b);
	attroff(COLOR_PAIR(1));
}

void mode_editor(char b)
{
	int length = strlen(editor_string);
	if (b == BKSPACE)
	{
		if (length > 0)
		{
			editor_string[length-1] = '\0';
			editor_pos--;
		}
	}
	else if (b == 'D') // ?
	{
		
	}
	else
	{
		editor_string[editor_pos] = b;
		editor_string[editor_pos + 1] = '\0';
		editor_pos++;
	}
	mvwprintw(stdscr, 1, 0, editor_string);
}

int lines(char * string)
{
	int i = 0, j = 0;
	while (true)
	{
		if (string[j] == '\n') i++;
		if (string[j] == '\0') return i;
		j++;
	}
}