/****************************************************************************
- * Copyright (c) 1999 Free Software Foundation, Inc. *
+ * Copyright 2019,2020 Thomas E. Dickey *
+ * Copyright 1999-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
****************************************************************************/
/*
- * Author: Thomas E. Dickey <dickey@clark.net> 1999
+ * Author: Thomas E. Dickey
*
- * $Id: cardfile.c,v 1.2 1999/06/16 00:41:57 tom Exp $
+ * $Id: cardfile.c,v 1.47 2020/02/02 23:34:34 tom Exp $
*
- * File format: text beginning in column 1 is a title; other text forms the content.
+ * File format: text beginning in column 1 is a title; other text is content.
*/
#include <test.priv.h>
+#if USE_LIBFORM && USE_LIBPANEL
+
#include <form.h>
#include <panel.h>
-#include <string.h>
-#include <ctype.h>
-
#define VISIBLE_CARDS 10
#define OFFSET_CARD 2
+#define pair_1 1
+#define pair_2 2
-#ifndef CTRL
-#define CTRL(x) ((x) & 0x1f)
-#endif
+#define isVisible(cardp) ((cardp)->panel != 0)
+
+enum {
+ MY_CTRL_x = MAX_FORM_COMMAND
+ ,MY_CTRL_N
+ ,MY_CTRL_P
+ ,MY_CTRL_Q
+ ,MY_CTRL_W
+};
typedef struct _card {
- struct _card *link;
- PANEL *panel;
- FORM *form;
- char *title;
- char *content;
+ struct _card *link;
+ PANEL *panel;
+ FORM *form;
+ char *title;
+ char *content;
} CARD;
static CARD *all_cards;
+static bool try_color = FALSE;
static char default_name[] = "cardfile.dat";
-#if !HAVE_STRDUP
-#define strdup my_strdup
-static char *strdup (char *s)
+static void
+failed(const char *s)
{
- char *p = (char *)malloc(strlen(s)+1);
- if (p)
- strcpy(p, s);
- return(p);
+ perror(s);
+ endwin();
+ ExitProgram(EXIT_FAILURE);
}
-#endif /* not HAVE_STRDUP */
-static char *skip(char *buffer)
+static const char *
+skip(const char *buffer)
{
- while (isspace(*buffer))
+ while (isspace(UChar(*buffer)))
buffer++;
return buffer;
}
-static void trim(char *buffer)
+static void
+trim(char *buffer)
{
- unsigned n = strlen(buffer);
- while (n-- && isspace(buffer[n]))
- buffer[n] = 0;
+ size_t n = strlen(buffer);
+ while (n-- && isspace(UChar(buffer[n])))
+ buffer[n] = 0;
}
/*******************************************************************************/
-static CARD *add_title(const char *title)
+static CARD *
+add_title(const char *title)
{
CARD *card, *p, *q;
- for (p = all_cards, q = 0; p != 0; q = p, p = p->link)
- {
+ for (p = all_cards, q = 0; p != 0; q = p, p = p->link) {
int cmp = strcmp(p->title, title);
if (cmp == 0)
return p;
break;
}
- card = (CARD *)calloc(1, sizeof(CARD));
+ card = typeCalloc(CARD, (size_t) 1);
card->title = strdup(title);
card->content = strdup("");
- if (q == 0)
- {
+ if (q == 0) {
card->link = all_cards;
all_cards = card;
- }
- else
- {
- card->link = q->link;
+ } else {
+ card->link = q->link;
q->link = card;
}
return card;
}
-static void add_content(CARD *card, char *content)
+static void
+add_content(CARD * card, const char *content)
{
- unsigned total, offset;
+ size_t total;
content = skip(content);
- if ((total = strlen(content)) != 0)
- {
- if ((offset = strlen(card->content)) != 0)
- {
+ if ((total = strlen(content)) != 0) {
+ size_t offset;
+
+ if (card->content != 0 && (offset = strlen(card->content)) != 0) {
total += 1 + offset;
- card->content = (char *)realloc(card->content, total + 1);
- strcpy(card->content + offset++, " ");
+ card->content = typeRealloc(char, total + 1, card->content);
+ if (card->content) {
+ _nc_STRCPY(card->content + offset, " ", total + 1 - offset);
+ offset++;
+ }
+ } else {
+ offset = 0;
+ if (card->content != 0)
+ free(card->content);
+ card->content = typeMalloc(char, total + 1);
}
+ if (card->content)
+ _nc_STRCPY(card->content + offset, content, total + 1 - offset);
else
- {
- card->content = (char *)malloc(total + 1);
- }
- strcpy(card->content + offset, content);
+ failed("add_content");
}
}
-static CARD *find_card(char *title)
+static CARD *
+new_card(void)
+{
+ CARD *card = add_title("");
+ add_content(card, "");
+ return card;
+}
+
+static CARD *
+find_card(char *title)
{
CARD *card;
return card;
}
-static void read_data(char *fname)
+static void
+read_data(char *fname)
{
FILE *fp;
- CARD *card = 0;
- char buffer[BUFSIZ];
- if ((fp = fopen(fname, "r")) != 0)
- {
- while (fgets(buffer, sizeof(buffer), fp))
- {
+ if ((fp = fopen(fname, "r")) != 0) {
+ CARD *card = 0;
+ char buffer[BUFSIZ];
+
+ while (fgets(buffer, sizeof(buffer), fp)) {
trim(buffer);
- if (isspace(*buffer))
- {
+ if (isspace(UChar(*buffer))) {
if (card == 0)
card = add_title("");
add_content(card, buffer);
- }
- else if ((card = find_card(buffer)) == 0)
- {
+ } else if ((card = find_card(buffer)) == 0) {
card = add_title(buffer);
}
}
/*******************************************************************************/
-static void write_data(const char *fname)
+static void
+write_data(const char *fname)
{
FILE *fp;
- CARD *p = 0;
- int n;
if (!strcmp(fname, default_name))
fname = "cardfile.out";
- if ((fp = fopen(fname, "w")) != 0)
- {
- for (p = all_cards; p != 0; p = p->link)
- {
+ if ((fp = fopen(fname, "w")) != 0) {
+ CARD *p = 0;
+
+ for (p = all_cards; p != 0; p = p->link) {
FIELD **f = form_fields(p->form);
- for (n = 0; f[n] != 0; n++)
- {
+ int n;
+
+ for (n = 0; f[n] != 0; n++) {
char *s = field_buffer(f[n], 0);
if (s != 0
- && (s = strdup(s)) != 0)
- {
+ && (s = strdup(s)) != 0) {
trim(s);
fprintf(fp, "%s%s\n", n ? "\t" : "", s);
free(s);
/*
* Count the cards
*/
-static int count_cards(void)
+static int
+count_cards(void)
{
CARD *p;
int count = 0;
/*
* Shuffle the panels to keep them in a natural hierarchy.
*/
-static void order_cards(CARD *first, int depth)
+static void
+order_cards(CARD * first, int depth)
{
- if (first)
- {
+ if (first) {
if (depth && first->link)
- order_cards(first->link, depth-1);
- top_panel(first->panel);
+ order_cards(first->link, depth - 1);
+ if (isVisible(first))
+ top_panel(first->panel);
}
}
/*
* Return the next card in the list
*/
-static CARD *next_card(CARD *now)
+static CARD *
+next_card(CARD * now)
{
- if (now->link)
- now = now->link;
+ if (now->link != 0) {
+ CARD *tst = now->link;
+ if (isVisible(tst))
+ now = tst;
+ else
+ (void) next_card(tst);
+ }
return now;
}
/*
* Return the previous card in the list
*/
-static CARD *prev_card(CARD *now)
+static CARD *
+prev_card(CARD * now)
{
CARD *p;
- for (p = all_cards; p != 0; p = p->link)
- if (p->link == now)
+ for (p = all_cards; p != 0; p = p->link) {
+ if (p->link == now) {
+ if (!isVisible(p))
+ p = prev_card(p);
return p;
+ }
+ }
return now;
}
+/*
+ * Returns the first card in the list that we will display.
+ */
+static CARD *
+first_card(CARD * now)
+{
+ if (!isVisible(now))
+ now = next_card(now);
+ return now;
+}
/*******************************************************************************/
-static int form_virtualize(WINDOW *w)
+static int
+form_virtualize(WINDOW *w)
{
- int c = wgetch(w);
+ int c = wgetch(w);
- switch(c)
- {
+ switch (c) {
case CTRL('W'):
- return(MAX_FORM_COMMAND + 4);
+ return (MY_CTRL_W);
case CTRL('N'):
- return(MAX_FORM_COMMAND + 3);
+ return (MY_CTRL_N);
case CTRL('P'):
- return(MAX_FORM_COMMAND + 2);
- case CTRL('Q'):
- case 033:
- return(MAX_FORM_COMMAND + 1);
+ return (MY_CTRL_P);
+ case QUIT:
+ case ESCAPE:
+ return (MY_CTRL_Q);
case KEY_BACKSPACE:
- return(REQ_DEL_PREV);
+ return (REQ_DEL_PREV);
case KEY_DC:
- return(REQ_DEL_CHAR);
+ return (REQ_DEL_CHAR);
case KEY_LEFT:
- return(REQ_LEFT_CHAR);
+ return (REQ_LEFT_CHAR);
case KEY_RIGHT:
- return(REQ_RIGHT_CHAR);
+ return (REQ_RIGHT_CHAR);
case KEY_DOWN:
case KEY_NEXT:
- return(REQ_NEXT_FIELD);
+ return (REQ_NEXT_FIELD);
case KEY_UP:
case KEY_PREVIOUS:
- return(REQ_PREV_FIELD);
+ return (REQ_PREV_FIELD);
default:
- return(c);
+ return (c);
+ }
+}
+
+static FIELD **
+make_fields(CARD * p, int form_high, int form_wide)
+{
+ FIELD **f = typeCalloc(FIELD *, (size_t) 3);
+
+ f[0] = new_field(1, form_wide, 0, 0, 0, 0);
+ set_field_back(f[0], A_REVERSE);
+ set_field_buffer(f[0], 0, p->title);
+ field_opts_off(f[0], O_BLANK);
+
+ f[1] = new_field(form_high - 1, form_wide, 1, 0, 0, 0);
+ set_field_buffer(f[1], 0, p->content);
+ set_field_just(f[1], JUSTIFY_LEFT);
+ field_opts_off(f[1], O_BLANK);
+
+ f[2] = 0;
+ return f;
+}
+
+static void
+show_legend(void)
+{
+ erase();
+ move(LINES - 3, 0);
+ addstr("^Q/ESC -- exit form ^W -- writes data to file\n");
+ addstr("^N -- go to next card ^P -- go to previous card\n");
+ addstr("Arrow keys move left/right within a field, up/down between fields");
+}
+
+#if (defined(KEY_RESIZE) && HAVE_WRESIZE) || NO_LEAKS
+static void
+free_form_fields(FIELD **f)
+{
+ int n;
+
+ for (n = 0; f[n] != 0; ++n) {
+ free_field(f[n]);
}
+ free(f);
}
+#endif
/*******************************************************************************/
-static void cardfile(char *fname)
+static void
+cardfile(char *fname)
{
WINDOW *win;
CARD *p;
CARD *top_card;
- int visible_cards = count_cards();
- int panel_wide = COLS - (visible_cards * OFFSET_CARD);
- int panel_high = LINES - (visible_cards * OFFSET_CARD) - 5;
- int form_wide = panel_wide - 2;
- int form_high = panel_high - 2;
- int x = (visible_cards - 1) * OFFSET_CARD;
- int y = 0;
- int ch;
+ int visible_cards;
+ int panel_wide;
+ int panel_high;
+ int form_wide;
+ int form_high;
+ int y;
+ int x;
int finished = FALSE;
- move(LINES - 3, 0);
- addstr("^Q/ESC -- exit form ^W -- writes data to file\n");
- addstr("^N -- go to next card ^P -- go to previous card\n");
- addstr("Arrow keys move left/right within a field, up/down between fields");
+ show_legend();
+
+ /* decide how many cards we can display */
+ visible_cards = count_cards();
+ while (
+ (panel_wide = COLS - (visible_cards * OFFSET_CARD)) < 10 ||
+ (panel_high = LINES - (visible_cards * OFFSET_CARD) - 5) < 5) {
+ --visible_cards;
+ }
+ form_wide = panel_wide - 2;
+ form_high = panel_high - 2;
+ y = (visible_cards - 1) * OFFSET_CARD;
+ x = 0;
/* make a panel for each CARD */
- for (p = all_cards; p != 0; p = p->link)
- {
- FIELD **f = (FIELD **)calloc(3, sizeof(FIELD *));
+ for (p = all_cards; p != 0; p = p->link) {
+
+ if ((win = newwin(panel_high, panel_wide, y, x)) == 0)
+ break;
- win = newwin(panel_high, panel_wide, x, y);
+ wbkgd(win, (chtype) COLOR_PAIR(pair_2));
keypad(win, TRUE);
p->panel = new_panel(win);
box(win, 0, 0);
- /* ...and a form in each panel */
- f[0] = new_field(1, form_wide, 0, 0, 0, 0);
- set_field_back(f[0], A_REVERSE);
- set_field_buffer(f[0], 0, p->title);
-
- f[1] = new_field(form_high-1, form_wide, 1, 0, 0, 0);
- set_field_buffer(f[1], 0, p->content);
- set_field_just(f[1], JUSTIFY_LEFT);
-
- f[2] = 0;
-
- p->form = new_form(f);
+ p->form = new_form(make_fields(p, form_high, form_wide));
set_form_win(p->form, win);
set_form_sub(p->form, derwin(win, form_high, form_wide, 1, 1));
post_form(p->form);
- x -= OFFSET_CARD;
- y += OFFSET_CARD;
+ y -= OFFSET_CARD;
+ x += OFFSET_CARD;
}
- order_cards(top_card = all_cards, visible_cards);
+ top_card = first_card(all_cards);
+ order_cards(top_card, visible_cards);
- update_panels();
+ while (!finished) {
+ int ch = ERR;
- while (!finished)
- {
update_panels();
doupdate();
- switch(form_driver(top_card->form, ch = form_virtualize(panel_window(top_card->panel))))
- {
+ ch = form_virtualize(panel_window(top_card->panel));
+ switch (form_driver(top_card->form, ch)) {
case E_OK:
break;
case E_UNKNOWN_COMMAND:
switch (ch) {
- case MAX_FORM_COMMAND+1:
+ case MY_CTRL_Q:
finished = TRUE;
break;
- case MAX_FORM_COMMAND+2:
+ case MY_CTRL_P:
top_card = prev_card(top_card);
order_cards(top_card, visible_cards);
break;
- case MAX_FORM_COMMAND+3:
+ case MY_CTRL_N:
top_card = next_card(top_card);
order_cards(top_card, visible_cards);
break;
- case MAX_FORM_COMMAND+4:
+ case MY_CTRL_W:
+ form_driver(top_card->form, REQ_VALIDATION);
write_data(fname);
break;
+#if defined(KEY_RESIZE) && HAVE_WRESIZE
+ case KEY_RESIZE:
+ /* resizeterm already did "something" reasonable, but it cannot
+ * know much about layout. So let's make it nicer.
+ */
+ panel_wide = COLS - (visible_cards * OFFSET_CARD);
+ panel_high = LINES - (visible_cards * OFFSET_CARD) - 5;
+
+ form_wide = panel_wide - 2;
+ form_high = panel_high - 2;
+
+ y = (visible_cards - 1) * OFFSET_CARD;
+ x = 0;
+
+ show_legend();
+ for (p = all_cards; p != 0; p = p->link) {
+ FIELD **oldf = form_fields(p->form);
+ WINDOW *olds = form_sub(p->form);
+
+ if (!isVisible(p))
+ continue;
+ win = form_win(p->form);
+
+ /* move and resize the card as needed
+ * FIXME: if the windows are shrunk too much, this won't do
+ */
+ mvwin(win, y, x);
+ wresize(win, panel_high, panel_wide);
+
+ /* reconstruct each form. Forms are not resizable, and
+ * there appears to be no good way to reload the text in
+ * a resized window.
+ */
+ werase(win);
+
+ unpost_form(p->form);
+ free_form(p->form);
+
+ p->form = new_form(make_fields(p, form_high, form_wide));
+ set_form_win(p->form, win);
+ set_form_sub(p->form, derwin(win, form_high, form_wide,
+ 1, 1));
+ post_form(p->form);
+
+ free_form_fields(oldf);
+ delwin(olds);
+
+ box(win, 0, 0);
+
+ y -= OFFSET_CARD;
+ x += OFFSET_CARD;
+ }
+ break;
+#endif
default:
beep();
break;
break;
}
}
+#if NO_LEAKS
+ while (all_cards != 0) {
+ p = all_cards;
+ all_cards = all_cards->link;
+
+ if (isVisible(p)) {
+ FIELD **f = form_fields(p->form);
+
+ unpost_form(p->form); /* ...so we can free it */
+ free_form(p->form); /* this also disconnects the fields */
+
+ free_form_fields(f);
+
+ del_panel(p->panel);
+ }
+ free(p->title);
+ free(p->content);
+ free(p);
+ }
+#endif
+}
+
+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: cardfile [options] file"
+ ,""
+ ,"Options:"
+ ," -c use color if terminal supports it"
+ };
+ size_t n;
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+ ExitProgram(EXIT_FAILURE);
}
/*******************************************************************************/
-int main(int argc, char *argv[])
+int
+main(int argc, char *argv[])
{
int n;
+ setlocale(LC_ALL, "");
+
+ while ((n = getopt(argc, argv, "c")) != -1) {
+ switch (n) {
+ case 'c':
+ try_color = TRUE;
+ break;
+ default:
+ usage();
+ }
+ }
+
initscr();
cbreak();
noecho();
- if (argc > 1)
- {
+ if (try_color) {
+ if (has_colors()) {
+ start_color();
+ init_pair(pair_1, COLOR_WHITE, COLOR_BLUE);
+ init_pair(pair_2, COLOR_WHITE, COLOR_CYAN);
+ bkgd((chtype) COLOR_PAIR(pair_1));
+ } else {
+ try_color = FALSE;
+ }
+ }
+
+ if (optind + 1 == argc) {
for (n = 1; n < argc; n++)
read_data(argv[n]);
+ if (count_cards() == 0)
+ new_card();
cardfile(argv[1]);
- }
- else
- {
+ } else {
read_data(default_name);
+ if (count_cards() == 0)
+ new_card();
cardfile(default_name);
}
endwin();
- return EXIT_SUCCESS;
+ ExitProgram(EXIT_SUCCESS);
}
+#else
+int
+main(void)
+{
+ printf("This program requires the curses form and panel libraries\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
projects / ncurses.git / blobdiff