exposurses

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Comment:Re-ident, fix comment typo, slight re-format
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SHA3-256: 18fbc02037a969a4dc6d952c90a6a38c51980a2375493d3b4f8502fff42f70e2
User & Date: atomicules@lavabit.com 2013-07-08 08:55:03
Original User & Date: atomicules@lavabit.com 2013-07-08 08:55:04
Context
2013-07-08
08:55
First attempt at getting two menus side by side

Tricky bit was that have to re-create my_items. I thought I'd be able to
re-use that for the sake of this test. But without recreating it the
second menu is blank. check-in: 8fab8d5ebf user: atomicules@lavabit.com tags: origin/master, trunk

08:55
Re-ident, fix comment typo, slight re-format check-in: 18fbc02037 user: atomicules@lavabit.com tags: origin/master, trunk
08:55
Add note about where file is from/based on check-in: a7bd8579c0 user: atomicules@lavabit.com tags: origin/master, trunk
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Changes to exposurses.c. 

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/* This file based on menu_scroll.c from:
   http://tldp.org/HOWTO/NCURSES-Programming-HOWTO/intro.html */
#include <curses.h>
#include <menu.h>

#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#define CTRLD 	4

char *choices[] = {
                        "Choice 1",
                        "Choice 2",
                        "Choice 3",
                        "Choice 4",
			"Choice 5",
			"Choice 6",
			"Choice 7",
			"Choice 8",
			"Choice 9",
			"Choice 10",
                        "Exit",
                        (char *)NULL,
                  };
void print_in_middle(WINDOW *win, int starty, int startx, int width, char *string, chtype color);

int main()
{	ITEM **my_items;
	int c;				
	MENU *my_menu;
        WINDOW *my_menu_win;
        int n_choices, i;
	
	/* Initialize curses */
	initscr();
	start_color();
        cbreak();
        noecho();
	keypad(stdscr, TRUE);
	init_pair(1, COLOR_RED, COLOR_BLACK);
	init_pair(2, COLOR_CYAN, COLOR_BLACK);

	/* Create items */
        n_choices = ARRAY_SIZE(choices);
        my_items = (ITEM **)calloc(n_choices, sizeof(ITEM *));
        for(i = 0; i < n_choices; ++i)
                my_items[i] = new_item(choices[i], choices[i]);

	/* Crate menu */
	my_menu = new_menu((ITEM **)my_items);

	/* Create the window to be associated with the menu */
        my_menu_win = newwin(10, 40, 4, 4);
        keypad(my_menu_win, TRUE);
     
	/* Set main window and sub window */
        set_menu_win(my_menu, my_menu_win);
        set_menu_sub(my_menu, derwin(my_menu_win, 6, 38, 3, 1));
	set_menu_format(my_menu, 5, 1);
			
	/* Set menu mark to the string " * " */
        set_menu_mark(my_menu, " * ");

	/* Print a border around the main window and print a title */
        box(my_menu_win, 0, 0);
	print_in_middle(my_menu_win, 1, 0, 40, "My Menu", COLOR_PAIR(1));
	mvwaddch(my_menu_win, 2, 0, ACS_LTEE);
	mvwhline(my_menu_win, 2, 1, ACS_HLINE, 38);
	mvwaddch(my_menu_win, 2, 39, ACS_RTEE);
        
	/* Post the menu */
	post_menu(my_menu);
	wrefresh(my_menu_win);
	
	attron(COLOR_PAIR(2));
	mvprintw(LINES - 2, 0, "Use PageUp and PageDown to scoll down or up a page of items");
	mvprintw(LINES - 1, 0, "Arrow Keys to navigate (F1 to Exit)");
	attroff(COLOR_PAIR(2));
	refresh();

	while((c = wgetch(my_menu_win)) != KEY_F(1))
	{       switch(c)
	        {	case KEY_DOWN:
				menu_driver(my_menu, REQ_DOWN_ITEM);
				break;
			case KEY_UP:
				menu_driver(my_menu, REQ_UP_ITEM);
				break;
			case KEY_NPAGE:
				menu_driver(my_menu, REQ_SCR_DPAGE);
				break;
			case KEY_PPAGE:
				menu_driver(my_menu, REQ_SCR_UPAGE);
				break;
		}
                wrefresh(my_menu_win);
	}	

	/* Unpost and free all the memory taken up */
        unpost_menu(my_menu);
        free_menu(my_menu);
        for(i = 0; i < n_choices; ++i)
                free_item(my_items[i]);
	endwin();
}

void print_in_middle(WINDOW *win, int starty, int startx, int width, char *string, chtype color)
{	int length, x, y;
	float temp;

	if(win == NULL)
		win = stdscr;
	getyx(win, y, x);
	if(startx != 0)
		x = startx;


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/* This file based on menu_scroll.c from:
http://tldp.org/HOWTO/NCURSES-Programming-HOWTO/intro.html */
#include <curses.h>
#include <menu.h>

#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#define CTRLD 	4

char *choices[] = {
	"Choice 1",
	"Choice 2",
	"Choice 3",
	"Choice 4",
	"Choice 5",
	"Choice 6",
	"Choice 7",
	"Choice 8",
	"Choice 9",
	"Choice 10",
	"Exit",
	(char *)NULL,
};
void print_in_middle(WINDOW *win, int starty, int startx, int width, char *string, chtype color);

int main(){
	ITEM **my_items;
	int c;
	MENU *my_menu;
	WINDOW *my_menu_win;
	int n_choices, i;

	/* Initialize curses */
	initscr();
	start_color();
	cbreak();
	noecho();
	keypad(stdscr, TRUE);
	init_pair(1, COLOR_RED, COLOR_BLACK);
	init_pair(2, COLOR_CYAN, COLOR_BLACK);

	/* Create items */
	n_choices = ARRAY_SIZE(choices);
	my_items = (ITEM **)calloc(n_choices, sizeof(ITEM *));
	for(i = 0; i < n_choices; ++i)
		my_items[i] = new_item(choices[i], choices[i]);

	/* Create menu */
	my_menu = new_menu((ITEM **)my_items);

	/* Create the window to be associated with the menu */
	my_menu_win = newwin(10, 40, 4, 4);
	keypad(my_menu_win, TRUE);

	/* Set main window and sub window */
	set_menu_win(my_menu, my_menu_win);
	set_menu_sub(my_menu, derwin(my_menu_win, 6, 38, 3, 1));
	set_menu_format(my_menu, 5, 1);

	/* Set menu mark to the string " * " */
	set_menu_mark(my_menu, " * ");

	/* Print a border around the main window and print a title */
	box(my_menu_win, 0, 0);
	print_in_middle(my_menu_win, 1, 0, 40, "My Menu", COLOR_PAIR(1));
	mvwaddch(my_menu_win, 2, 0, ACS_LTEE);
	mvwhline(my_menu_win, 2, 1, ACS_HLINE, 38);
	mvwaddch(my_menu_win, 2, 39, ACS_RTEE);

	/* Post the menu */
	post_menu(my_menu);
	wrefresh(my_menu_win);

	attron(COLOR_PAIR(2));
	mvprintw(LINES - 2, 0, "Use PageUp and PageDown to scoll down or up a page of items");
	mvprintw(LINES - 1, 0, "Arrow Keys to navigate (F1 to Exit)");
	attroff(COLOR_PAIR(2));
	refresh();

	while((c = wgetch(my_menu_win)) != KEY_F(1)){
		switch(c){
			case KEY_DOWN:
			menu_driver(my_menu, REQ_DOWN_ITEM);
			break;
			case KEY_UP:
			menu_driver(my_menu, REQ_UP_ITEM);
			break;
			case KEY_NPAGE:
			menu_driver(my_menu, REQ_SCR_DPAGE);
			break;
			case KEY_PPAGE:
			menu_driver(my_menu, REQ_SCR_UPAGE);
			break;
		}
		wrefresh(my_menu_win);
	}	

	/* Unpost and free all the memory taken up */
	unpost_menu(my_menu);
	free_menu(my_menu);
	for(i = 0; i < n_choices; ++i)
		free_item(my_items[i]);
	endwin();
}

void print_in_middle(WINDOW *win, int starty, int startx, int width, char *string, chtype color){
	int length, x, y;
	float temp;

	if(win == NULL)
		win = stdscr;
	getyx(win, y, x);
	if(startx != 0)
		x = startx;
︙︙

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