/****************************************************************************
- * Copyright (c) 2007-2009,2010 Free Software Foundation, Inc. *
+ * Copyright (c) 2007-2011,2015 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 *
* authorization. *
****************************************************************************/
/*
- * $Id: savescreen.c,v 1.13 2010/11/13 21:18:00 tom Exp $
+ * $Id: savescreen.c,v 1.28 2015/08/22 22:40:22 tom Exp $
*
* Demonstrate save/restore functions from the curses library.
* Thomas Dickey - 2007/7/14
#include <test.priv.h>
+#if HAVE_SCR_DUMP
+
#include <sys/types.h>
#include <sys/stat.h>
#endif
static bool use_init = FALSE;
+static bool keep_dumps = FALSE;
static int
fexists(const char *name)
{
int n;
- for (n = 0; files[n] != 0; ++n) {
- unlink(files[n]);
+ if (!keep_dumps) {
+ for (n = 0; files[n] != 0; ++n) {
+ unlink(files[n]);
+ }
}
}
static void
show_what(int which, int last)
{
- int y, x;
- time_t now = time((time_t *) 0);
+ int y, x, n;
+ time_t now;
+ char *mytime;
getyx(stdscr, y, x);
move(0, 0);
- printw("Saved %d of %d - %s", which, last + 1, ctime(&now));
+ printw("Saved %d of %d (? for help)", which, last + 1);
+
+ now = time((time_t *) 0);
+ mytime = ctime(&now);
+ for (n = (int) strlen(mytime) - 1; n >= 0; --n) {
+ if (isspace(UChar(mytime[n]))) {
+ mytime[n] = '\0';
+ } else {
+ break;
+ }
+ }
+ mvprintw(0, (COLS - n - 2), " %s", mytime);
move(y, x);
{
int ch;
- timeout(100);
+ timeout(50);
do {
show_what(which, last);
return ch;
}
+static void
+show_help(const char **help)
+{
+ WINDOW *mywin = newwin(LINES, COLS, 0, 0);
+ int n;
+
+ box(mywin, 0, 0);
+ wmove(mywin, 1, 1);
+ for (n = 0; help[n] != 0; ++n) {
+ wmove(mywin, 1 + n, 2);
+ wprintw(mywin, "%.*s", COLS - 4, help[n]);
+ }
+ wgetch(mywin);
+ delwin(mywin);
+ touchwin(stdscr);
+ refresh();
+}
+
+static void
+editor_help(void)
+{
+ static const char *msgs[] =
+ {
+ "You are now in the screen-editor, which allows you to make some",
+ "lines on the screen, as well as save copies of the screen to a",
+ "temporary file",
+ "",
+ "Keys:",
+ " q quit",
+ " n run the screen-loader to show the saved screens",
+ " <space> dump a screen",
+ "",
+ " a toggle between '#' and graphic symbol for drawing",
+ " c change color drawn by line to next in palette",
+ " h,j,k,l or arrows to move around the screen, drawing",
+ };
+ show_help(msgs);
+}
+
+static void
+replay_help(void)
+{
+ static const char *msgs[] =
+ {
+ "You are now in the screen-loader, which allows you to view",
+ "the dumped/restored screens.",
+ "",
+ "Keys:",
+ " q quit",
+ " <space> load the next screen",
+ " <backspace> load the previous screen",
+ };
+ show_help(msgs);
+}
+
static void
usage(void)
{
"Usage: savescreen [-r] files",
"",
"Options:",
- " -i use scr_init/scr_restore rather than scr_set",
- " -r replay the screen-dump files"
+ " -f file fill/initialize screen using text from this file",
+ " -i use scr_init/scr_restore rather than scr_set",
+ " -k keep the restored dump-files rather than removing them",
+ " -r replay the screen-dump files"
};
unsigned n;
for (n = 0; n < SIZEOF(msg); ++n) {
bool replaying = FALSE;
bool done = FALSE;
char **files;
+ char *fill_by = 0;
+#if USE_WIDEC_SUPPORT
+ cchar_t mycc;
+ int myxx;
+#endif
- while ((ch = getopt(argc, argv, "ir")) != -1) {
+ setlocale(LC_ALL, "");
+
+ while ((ch = getopt(argc, argv, "f:ikr")) != -1) {
switch (ch) {
+ case 'f':
+ fill_by = optarg;
+ break;
case 'i':
use_init = TRUE;
break;
+ case 'k':
+ keep_dumps = TRUE;
+ break;
case 'r':
replaying = TRUE;
break;
keypad(stdscr, TRUE);
curs_set(0);
if (has_colors()) {
+ short pair;
+ short color;
+
start_color();
- for (ch = 0; ch < COLOR_PAIRS; ++ch) {
- short pair = (short) (ch % COLOR_PAIRS);
- init_pair(pair, COLOR_WHITE, (short) (ch % COLORS));
+ /*
+ * Assume pairs is the square of colors, and assign pairs going down
+ * so that there is minimal conflict with the background color (which
+ * counts up). The intent is just to show how color pair values are
+ * saved and restored.
+ */
+ for (pair = 0; pair < COLOR_PAIRS; ++pair) {
+ color = (short) (pair % (COLORS - 1));
+ init_pair(pair, (short) (COLOR_WHITE - color), color);
+ }
+ }
+
+ if (fill_by != 0) {
+ FILE *fp = fopen(fill_by, "r");
+ if (fp != 0) {
+ bool filled = FALSE;
+ move(1, 0);
+ while ((ch = fgetc(fp)) != EOF) {
+ if (addch(UChar(ch)) == ERR) {
+ filled = TRUE;
+ break;
+ }
+ }
+ fclose(fp);
+ if (!filled) {
+ while (addch(' ') != ERR) {
+ ;
+ }
+ }
+ move(0, 0);
+ } else {
+ endwin();
+ fprintf(stderr, "Cannot open \"%s\"\n", fill_by);
+ ExitProgram(EXIT_FAILURE);
}
}
done = TRUE;
break;
case 'q':
- endwin();
cleanup(files);
done = TRUE;
break;
if (++which > last)
which = 0;
break;
+ case '?':
+ replay_help();
+ break;
default:
beep();
continue;
wrefresh(curscr);
}
}
+ endwin();
} else {
- int y;
- int x;
-
- move(2, 0);
- printw("Use h,j,k,l or arrows to move around the screen\n");
- printw("Press 'q' to quit, ' ' to dump a screen\n");
- printw("When the last screen has been dumped, press 'n' to run the\n");
- printw("screen-loader. That allows only 'q', backspace and ' ' for\n");
- printw("stepping through the dumped/restored screens.\n");
- getyx(stdscr, y, x);
+ int y = 0;
+ int x = 0;
+ int color = 0;
+ int altchars = 0;
while (!done) {
switch (get_command(which, last)) {
done = TRUE;
break;
case 'q':
- endwin();
cleanup(files);
done = TRUE;
break;
}
++which;
if (has_colors()) {
+ int cx, cy;
short pair = (short) (which % COLOR_PAIRS);
+ /*
+ * Change the background color, to make it more
+ * obvious. But that changes the existing text-color.
+ * Copy the old values from the currently displayed
+ * screen.
+ */
bkgd((chtype) COLOR_PAIR(pair));
+ for (cy = 1; cy < LINES; ++cy) {
+ for (cx = 0; cx < COLS; ++cx) {
+ wmove(curscr, cy, cx);
+ wmove(stdscr, cy, cx);
+#if USE_WIDEC_SUPPORT
+ if (win_wch(curscr, &mycc) != ERR) {
+ myxx = wcwidth(mycc.chars[0]);
+ if (myxx > 0) {
+ wadd_wchnstr(stdscr, &mycc, 1);
+ cx += (myxx - 1);
+ }
+ }
+#else
+ waddch(stdscr, winch(curscr));
+#endif
+ }
+ }
}
} else {
beep();
if (++x >= COLS)
x = 0;
break;
+ case 'a':
+ altchars = !altchars;
+ break;
+ case 'c':
+ color = (color + 1) % COLORS;
+ break;
+ case '?':
+ editor_help();
+ break;
+ default:
+ beep();
+ continue;
}
if (!done) {
- time_t now = time((time_t *) 0);
-
- move(0, 0);
- addstr(ctime(&now));
+ attr_t attr = (A_REVERSE | (attr_t) COLOR_PAIR(color * COLORS));
+ chtype ch2 = (altchars ? ACS_DIAMOND : '#');
move(y, x);
- addch('#' | A_REVERSE);
+ addch(ch2 | attr);
move(y, x);
}
}
+ endwin();
}
ExitProgram(EXIT_SUCCESS);
}
+
+#else
+int
+main(int argc, char *argv[])
+{
+ printf("This program requires the screen-dump functions\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
projects / ncurses.git / blobdiff