diff options
Diffstat (limited to 'test/cardfile.c')
-rw-r--r-- | test/cardfile.c | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/test/cardfile.c b/test/cardfile.c new file mode 100644 index 0000000..f9557bd --- /dev/null +++ b/test/cardfile.c @@ -0,0 +1,621 @@ +/**************************************************************************** + * Copyright (c) 1999-2008,2010 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 * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/* + * Author: Thomas E. Dickey + * + * $Id: cardfile.c,v 1.38 2010/11/14 00:58:45 tom Exp $ + * + * 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> + +#define VISIBLE_CARDS 10 +#define OFFSET_CARD 2 +#define pair_1 1 +#define pair_2 2 + +#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; +} 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(const char *s) +{ + char *p = typeMalloc(char, strlen(s) + 1); + if (p) + strcpy(p, s); + return (p); +} +#endif /* not HAVE_STRDUP */ + +static const char * +skip(const char *buffer) +{ + while (isspace(UChar(*buffer))) + buffer++; + return buffer; +} + +static void +trim(char *buffer) +{ + size_t n = strlen(buffer); + while (n-- && isspace(UChar(buffer[n]))) + buffer[n] = 0; +} + +/*******************************************************************************/ + +static CARD * +add_title(const char *title) +{ + CARD *card, *p, *q; + + for (p = all_cards, q = 0; p != 0; q = p, p = p->link) { + int cmp = strcmp(p->title, title); + if (cmp == 0) + return p; + if (cmp > 0) + break; + } + + card = typeCalloc(CARD, 1); + card->title = strdup(title); + card->content = strdup(""); + + if (q == 0) { + card->link = all_cards; + all_cards = card; + } else { + card->link = q->link; + q->link = card; + } + + return card; +} + +static void +add_content(CARD * card, const char *content) +{ + size_t total, offset; + + content = skip(content); + if ((total = strlen(content)) != 0) { + if (card->content != 0 && (offset = strlen(card->content)) != 0) { + total += 1 + offset; + card->content = typeRealloc(char, total + 1, card->content); + if (card->content) + strcpy(card->content + offset++, " "); + } else { + offset = 0; + if (card->content != 0) + free(card->content); + card->content = typeMalloc(char, total + 1); + } + if (card->content) + strcpy(card->content + offset, content); + } +} + +static CARD * +new_card(void) +{ + CARD *card = add_title(""); + add_content(card, ""); + return card; +} + +static CARD * +find_card(char *title) +{ + CARD *card; + + for (card = all_cards; card != 0; card = card->link) + if (!strcmp(card->title, title)) + break; + + return card; +} + +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)) { + trim(buffer); + if (isspace(UChar(*buffer))) { + if (card == 0) + card = add_title(""); + add_content(card, buffer); + } else if ((card = find_card(buffer)) == 0) { + card = add_title(buffer); + } + } + fclose(fp); + } +} + +/*******************************************************************************/ + +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) { + FIELD **f = form_fields(p->form); + for (n = 0; f[n] != 0; n++) { + char *s = field_buffer(f[n], 0); + if (s != 0 + && (s = strdup(s)) != 0) { + trim(s); + fprintf(fp, "%s%s\n", n ? "\t" : "", s); + free(s); + } + } + } + fclose(fp); + } +} + +/*******************************************************************************/ + +/* + * Count the cards + */ +static int +count_cards(void) +{ + CARD *p; + int count = 0; + + for (p = all_cards; p != 0; p = p->link) + count++; + + return count; +} + +/* + * Shuffle the panels to keep them in a natural hierarchy. + */ +static void +order_cards(CARD * first, int depth) +{ + if (first) { + if (depth && first->link) + 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) +{ + 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) +{ + CARD *p; + 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) +{ + int c = wgetch(w); + + switch (c) { + case CTRL('W'): + return (MY_CTRL_W); + case CTRL('N'): + return (MY_CTRL_N); + case CTRL('P'): + return (MY_CTRL_P); + case QUIT: + case ESCAPE: + return (MY_CTRL_Q); + + case KEY_BACKSPACE: + return (REQ_DEL_PREV); + case KEY_DC: + return (REQ_DEL_CHAR); + case KEY_LEFT: + return (REQ_LEFT_CHAR); + case KEY_RIGHT: + return (REQ_RIGHT_CHAR); + + case KEY_DOWN: + case KEY_NEXT: + return (REQ_NEXT_FIELD); + case KEY_UP: + case KEY_PREVIOUS: + return (REQ_PREV_FIELD); + + default: + return (c); + } +} + +static FIELD ** +make_fields(CARD * p, int form_high, int form_wide) +{ + FIELD **f = typeCalloc(FIELD *, 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) +{ + WINDOW *win; + CARD *p; + CARD *top_card; + int visible_cards; + int panel_wide; + int panel_high; + int form_wide; + int form_high; + int y; + int x; + int ch = ERR; + int finished = FALSE; + + 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) { + + if ((win = newwin(panel_high, panel_wide, y, x)) == 0) + break; + + wbkgd(win, COLOR_PAIR(pair_2)); + keypad(win, TRUE); + p->panel = new_panel(win); + box(win, 0, 0); + + 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); + + y -= OFFSET_CARD; + x += OFFSET_CARD; + } + + top_card = first_card(all_cards); + order_cards(top_card, visible_cards); + + while (!finished) { + update_panels(); + doupdate(); + + 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 MY_CTRL_Q: + finished = TRUE; + break; + case MY_CTRL_P: + top_card = prev_card(top_card); + order_cards(top_card, visible_cards); + break; + case MY_CTRL_N: + top_card = next_card(top_card); + order_cards(top_card, visible_cards); + break; + 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; + default: + flash(); + break; + } + } +#if NO_LEAKS + while (all_cards != 0) { + FIELD **f; + + p = all_cards; + all_cards = all_cards->link; + + if (isVisible(p)) { + 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: view [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 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 (try_color) { + if (has_colors()) { + start_color(); + init_pair(pair_1, COLOR_WHITE, COLOR_BLUE); + init_pair(pair_2, COLOR_WHITE, COLOR_CYAN); + bkgd(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 { + read_data(default_name); + if (count_cards() == 0) + new_card(); + cardfile(default_name); + } + + endwin(); + + ExitProgram(EXIT_SUCCESS); +} +#else +int +main(void) +{ + printf("This program requires the curses form and panel libraries\n"); + ExitProgram(EXIT_FAILURE); +} +#endif |