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Merge remote-tracking (subtree) branch 'PracticingCurses/master'

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This commit is contained in:
Dan Buch
2012-03-03 20:15:32 -05:00
parent c0473f6fc3 354ea866cd
commit cd651d229c
69 changed files with 4237 additions and 0 deletions
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31
PracticingCurses/menus/Makefile Normal file
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# Makefile for JustForFun Files
# A few variables
CC=gcc
LIBS=-lmenu -lncurses
SRC_DIR=.
EXE_DIR=../demo/exe
EXES = \
${EXE_DIR}/menu_attrib\
${EXE_DIR}/menu_item_data\
${EXE_DIR}/menu_multi_column \
${EXE_DIR}/menu_scroll \
${EXE_DIR}/menu_simple \
${EXE_DIR}/menu_toggle \
${EXE_DIR}/menu_userptr \
${EXE_DIR}/menu_win
${EXE_DIR}/%: %.o
${CC} -o $@ $< ${LIBS}
%.o: ${SRC_DIR}/%.c
${CC} -o $@ -c $<
all: ${EXES}
clean:
@rm -f ${EXES}

13
PracticingCurses/menus/README Normal file
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Description of files
--------------------
menus
|
|----> menu_attrib.c -- Usage of menu attributes
|----> menu_item_data.c -- Usage of item_name() etc.. functions
|----> menu_multi_column.c -- Creates multi columnar menus
|----> menu_scroll.c -- Demonstrates scrolling capability of menus
|----> menu_simple.c -- A simple menu accessed by arrow keys
|----> menu_toggle.c -- Creates multi valued menus and explains
| -- REQ_TOGGLE_ITEM
|----> menu_userptr.c -- Usage of user pointer
|----> menu_win.c -- Demo of windows associated with menus

80
PracticingCurses/menus/menu_attrib.c Normal file
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#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",
"Exit",
};
int main()
{ ITEM **my_items;
int c;
MENU *my_menu;
int n_choices, i;
ITEM *cur_item;
/* Initialize curses */
initscr();
start_color();
cbreak();
noecho();
keypad(stdscr, TRUE);
init_pair(1, COLOR_RED, COLOR_BLACK);
init_pair(2, COLOR_GREEN, COLOR_BLACK);
init_pair(3, COLOR_MAGENTA, COLOR_BLACK);
/* Initialize items */
n_choices = ARRAY_SIZE(choices);
my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *));
for(i = 0; i < n_choices; ++i)
my_items[i] = new_item(choices[i], choices[i]);
my_items[n_choices] = (ITEM *)NULL;
item_opts_off(my_items[3], O_SELECTABLE);
item_opts_off(my_items[6], O_SELECTABLE);
/* Create menu */
my_menu = new_menu((ITEM **)my_items);
/* Set fore ground and back ground of the menu */
set_menu_fore(my_menu, COLOR_PAIR(1) | A_REVERSE);
set_menu_back(my_menu, COLOR_PAIR(2));
set_menu_grey(my_menu, COLOR_PAIR(3));
/* Post the menu */
mvprintw(LINES - 3, 0, "Press <ENTER> to see the option selected");
mvprintw(LINES - 2, 0, "Up and Down arrow keys to naviage (F1 to Exit)");
post_menu(my_menu);
refresh();
while((c = getch()) != 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 10: /* Enter */
move(20, 0);
clrtoeol();
mvprintw(20, 0, "Item selected is : %s",
item_name(current_item(my_menu)));
pos_menu_cursor(my_menu);
break;
}
}
unpost_menu(my_menu);
for(i = 0; i < n_choices; ++i)
free_item(my_items[i]);
free_menu(my_menu);
endwin();
}

66
PracticingCurses/menus/menu_item_data.c Normal file
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#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",
"Exit",
};
int main()
{ ITEM **my_items;
int c;
MENU *my_menu;
int n_choices, i;
ITEM *cur_item;
initscr();
cbreak();
noecho();
keypad(stdscr, TRUE);
n_choices = ARRAY_SIZE(choices);
my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *));
for(i = 0; i < n_choices; ++i)
my_items[i] = new_item(choices[i], choices[i]);
my_items[n_choices] = (ITEM *)NULL;
my_menu = new_menu((ITEM **)my_items);
post_menu(my_menu);
refresh();
while((c = getch()) != 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 10: /* Enter */
cur_item = current_item(my_menu);
move(LINES - 2, 0);
clrtoeol();
mvprintw(LINES - 2, 0, "You have chosen %d item with name %s and description %s",
item_index(cur_item) + 1, item_name(cur_item),
item_description(cur_item));
refresh();
pos_menu_cursor(my_menu);
break;
}
}
free_item(my_items[0]);
free_item(my_items[1]);
free_menu(my_menu);
endwin();
}

97
PracticingCurses/menus/menu_multi_column.c Normal file
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#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",
"Choice 11", "Choice 12", "Choice 13", "Choice 14", "Choice 15",
"Choice 16", "Choice 17", "Choice 18", "Choice 19", "Choice 20",
"Exit",
(char *)NULL,
};
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);
/* Set menu option not to show the description */
menu_opts_off(my_menu, O_SHOWDESC);
/* Create the window to be associated with the menu */
my_menu_win = newwin(10, 70, 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, 68, 3, 1));
set_menu_format(my_menu, 5, 3);
set_menu_mark(my_menu, " * ");
/* Print a border around the main window and print a title */
box(my_menu_win, 0, 0);
attron(COLOR_PAIR(2));
mvprintw(LINES - 3, 0, "Use PageUp and PageDown to scroll");
mvprintw(LINES - 2, 0, "Use Arrow Keys to navigate (F1 to Exit)");
attroff(COLOR_PAIR(2));
refresh();
/* Post the menu */
post_menu(my_menu);
wrefresh(my_menu_win);
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_LEFT:
menu_driver(my_menu, REQ_LEFT_ITEM);
break;
case KEY_RIGHT:
menu_driver(my_menu, REQ_RIGHT_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();
}

124
PracticingCurses/menus/menu_scroll.c Normal file
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#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;
if(starty != 0)
y = starty;
if(width == 0)
width = 80;
length = strlen(string);
temp = (width - length)/ 2;
x = startx + (int)temp;
wattron(win, color);
mvwprintw(win, y, x, "%s", string);
wattroff(win, color);
refresh();
}

56
PracticingCurses/menus/menu_simple.c Normal file
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#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",
"Exit",
};
int main()
{ ITEM **my_items;
int c;
MENU *my_menu;
int n_choices, i;
ITEM *cur_item;
initscr();
cbreak();
noecho();
keypad(stdscr, TRUE);
n_choices = ARRAY_SIZE(choices);
my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *));
for(i = 0; i < n_choices; ++i)
my_items[i] = new_item(choices[i], choices[i]);
my_items[n_choices] = (ITEM *)NULL;
my_menu = new_menu((ITEM **)my_items);
mvprintw(LINES - 2, 0, "F1 to Exit");
post_menu(my_menu);
refresh();
while((c = getch()) != 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;
}
}
free_item(my_items[0]);
free_item(my_items[1]);
free_menu(my_menu);
endwin();
}

84
PracticingCurses/menus/menu_toggle.c Normal file
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#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",
"Exit",
};
int main()
{ ITEM **my_items;
int c;
MENU *my_menu;
int n_choices, i;
ITEM *cur_item;
/* Initialize curses */
initscr();
cbreak();
noecho();
keypad(stdscr, TRUE);
/* Initialize items */
n_choices = ARRAY_SIZE(choices);
my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *));
for(i = 0; i < n_choices; ++i)
my_items[i] = new_item(choices[i], choices[i]);
my_items[n_choices] = (ITEM *)NULL;
my_menu = new_menu((ITEM **)my_items);
/* Make the menu multi valued */
menu_opts_off(my_menu, O_ONEVALUE);
mvprintw(LINES - 3, 0, "Use <SPACE> to select or unselect an item.");
mvprintw(LINES - 2, 0, "<ENTER> to see presently selected items(F1 to Exit)");
post_menu(my_menu);
refresh();
while((c = getch()) != 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 ' ':
menu_driver(my_menu, REQ_TOGGLE_ITEM);
break;
case 10: /* Enter */
{ char temp[200];
ITEM **items;
items = menu_items(my_menu);
temp[0] = '\0';
for(i = 0; i < item_count(my_menu); ++i)
if(item_value(items[i]) == TRUE)
{ strcat(temp, item_name(items[i]));
strcat(temp, " ");
}
move(20, 0);
clrtoeol();
mvprintw(20, 0, temp);
refresh();
}
break;
}
}
free_item(my_items[0]);
free_item(my_items[1]);
free_menu(my_menu);
endwin();
}

87
PracticingCurses/menus/menu_userptr.c Normal file
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#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",
"Exit",
};
void func(char *name);
int main()
{ ITEM **my_items;
int c;
MENU *my_menu;
int n_choices, i;
ITEM *cur_item;
/* Initialize curses */
initscr();
start_color();
cbreak();
noecho();
keypad(stdscr, TRUE);
init_pair(1, COLOR_RED, COLOR_BLACK);
init_pair(2, COLOR_GREEN, COLOR_BLACK);
init_pair(3, COLOR_MAGENTA, COLOR_BLACK);
/* Initialize items */
n_choices = ARRAY_SIZE(choices);
my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *));
for(i = 0; i < n_choices; ++i)
{ my_items[i] = new_item(choices[i], choices[i]);
/* Set the user pointer */
set_item_userptr(my_items[i], func);
}
my_items[n_choices] = (ITEM *)NULL;
/* Create menu */
my_menu = new_menu((ITEM **)my_items);
/* Post the menu */
mvprintw(LINES - 3, 0, "Press <ENTER> to see the option selected");
mvprintw(LINES - 2, 0, "Up and Down arrow keys to naviage (F1 to Exit)");
post_menu(my_menu);
refresh();
while((c = getch()) != 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 10: /* Enter */
{ ITEM *cur;
void (*p)(char *);
cur = current_item(my_menu);
p = item_userptr(cur);
p((char *)item_name(cur));
pos_menu_cursor(my_menu);
break;
}
break;
}
}
unpost_menu(my_menu);
for(i = 0; i < n_choices; ++i)
free_item(my_items[i]);
free_menu(my_menu);
endwin();
}
void func(char *name)
{ move(20, 0);
clrtoeol();
mvprintw(20, 0, "Item selected is : %s", name);
}

105
PracticingCurses/menus/menu_win.c Normal file
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#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",
"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);
/* 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 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);
mvprintw(LINES - 2, 0, "F1 to exit");
refresh();
/* Post the menu */
post_menu(my_menu);
wrefresh(my_menu_win);
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;
}
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;
if(starty != 0)
y = starty;
if(width == 0)
width = 80;
length = strlen(string);
temp = (width - length)/ 2;
x = startx + (int)temp;
wattron(win, color);
mvwprintw(win, y, x, "%s", string);
wattroff(win, color);
refresh();
}