1 files changed, 342 insertions, 0 deletions
diff --git a/ncurses-5.9/test/savescreen.c b/ncurses-5.9/test/savescreen.c
new file mode 100644
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+++ b/ncurses-5.9/test/savescreen.c
@@ -0,0 +1,342 @@
+/****************************************************************************
+ * Copyright (c) 2007-2010,2011 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.                                                           *
+ ****************************************************************************/
+/*
+ * $Id$
+ *
+ * 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>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+static bool use_init = FALSE;
+
+static int
+fexists(const char *name)
+{
+    struct stat sb;
+    return (stat(name, &sb) == 0 && (sb.st_mode & S_IFMT) == S_IFREG);
+}
+
+static void
+setup_next(void)
+{
+    curs_set(1);
+    reset_shell_mode();
+}
+
+static void
+cleanup(char *files[])
+{
+    int n;
+
+    for (n = 0; files[n] != 0; ++n) {
+	unlink(files[n]);
+    }
+}
+
+static int
+load_screen(char *filename)
+{
+    int result;
+
+    if (use_init) {
+	if ((result = scr_init(filename)) != ERR)
+	    result = scr_restore(filename);
+    } else {
+	result = scr_set(filename);
+    }
+    return result;
+}
+
+/*
+ * scr_restore() or scr_set() operates on curscr.  If we read a character using
+ * getch() that will refresh stdscr, wiping out the result.  To avoid that,
+ * copy the data back from curscr to stdscr.
+ */
+static void
+after_load(void)
+{
+    overwrite(curscr, stdscr);
+    doupdate();
+}
+
+static void
+show_what(int which, int last)
+{
+    int y, x;
+    time_t now = time((time_t *) 0);
+
+    getyx(stdscr, y, x);
+
+    move(0, 0);
+    printw("Saved %d of %d - %s", which, last + 1, ctime(&now));
+
+    move(y, x);
+
+    refresh();
+}
+
+static int
+get_command(int which, int last)
+{
+    int ch;
+
+    timeout(100);
+
+    do {
+	show_what(which, last);
+	ch = getch();
+    } while (ch == ERR);
+
+    return ch;
+}
+
+static void
+usage(void)
+{
+    static const char *msg[] =
+    {
+	"Usage: savescreen [-r] files",
+	"",
+	"Options:",
+	" -i  use scr_init/scr_restore rather than scr_set",
+	" -r  replay the screen-dump files"
+    };
+    unsigned n;
+    for (n = 0; n < SIZEOF(msg); ++n) {
+	fprintf(stderr, "%s\n", msg[n]);
+    }
+    ExitProgram(EXIT_FAILURE);
+}
+
+int
+main(int argc, char *argv[])
+{
+    int ch;
+    int which = 0;
+    int last;
+    bool replaying = FALSE;
+    bool done = FALSE;
+    char **files;
+
+    while ((ch = getopt(argc, argv, "ir")) != -1) {
+	switch (ch) {
+	case 'i':
+	    use_init = TRUE;
+	    break;
+	case 'r':
+	    replaying = TRUE;
+	    break;
+	default:
+	    usage();
+	    break;
+	}
+    }
+
+    files = argv + optind;
+    last = argc - optind - 1;
+
+    if (replaying) {
+	while (last >= 0 && !fexists(files[last]))
+	    --last;
+    }
+
+    initscr();
+    cbreak();
+    noecho();
+    keypad(stdscr, TRUE);
+    curs_set(0);
+    if (has_colors()) {
+	start_color();
+	for (ch = 0; ch < COLOR_PAIRS; ++ch) {
+	    short pair = (short) (ch % COLOR_PAIRS);
+	    init_pair(pair, COLOR_WHITE, (short) (ch % COLORS));
+	}
+    }
+
+    if (replaying) {
+
+	/*
+	 * Use the last file as the initial/current screen.
+	 */
+	if (last < 0) {
+	    endwin();
+	    printf("No screen-dumps given\n");
+	    ExitProgram(EXIT_FAILURE);
+	}
+
+	which = last;
+	if (load_screen(files[which]) == ERR) {
+	    endwin();
+	    printf("Cannot load screen-dump %s\n", files[which]);
+	    ExitProgram(EXIT_FAILURE);
+	}
+	after_load();
+
+	while (!done && (ch = getch()) != ERR) {
+	    switch (ch) {
+	    case 'n':
+		/*
+		 * If we got a "next" here, skip to the final screen before
+		 * moving to the next process.
+		 */
+		setup_next();
+		which = last;
+		done = TRUE;
+		break;
+	    case 'q':
+		endwin();
+		cleanup(files);
+		done = TRUE;
+		break;
+	    case KEY_BACKSPACE:
+	    case '\b':
+		if (--which < 0)
+		    which = last;
+		break;
+	    case ' ':
+		if (++which > last)
+		    which = 0;
+		break;
+	    default:
+		beep();
+		continue;
+	    }
+
+	    if (ch == 'q') {
+		;
+	    } else if (scr_restore(files[which]) == ERR) {
+		endwin();
+		printf("Cannot load screen-dump %s\n", files[which]);
+		cleanup(files);
+		ExitProgram(EXIT_FAILURE);
+	    } else {
+		wrefresh(curscr);
+	    }
+	}
+    } 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);
+
+	while (!done) {
+	    switch (get_command(which, last)) {
+	    case 'n':
+		setup_next();
+		done = TRUE;
+		break;
+	    case 'q':
+		endwin();
+		cleanup(files);
+		done = TRUE;
+		break;
+	    case ' ':
+		if (files[which] != 0) {
+		    show_what(which + 1, last);
+		    if (scr_dump(files[which]) == ERR) {
+			endwin();
+			printf("Cannot write screen-dump %s\n", files[which]);
+			cleanup(files);
+			done = TRUE;
+			break;
+		    }
+		    ++which;
+		    if (has_colors()) {
+			short pair = (short) (which % COLOR_PAIRS);
+			bkgd((chtype) COLOR_PAIR(pair));
+		    }
+		} else {
+		    beep();
+		}
+		break;
+	    case KEY_LEFT:
+	    case 'h':
+		if (--x < 0)
+		    x = COLS - 1;
+		break;
+	    case KEY_DOWN:
+	    case 'j':
+		if (++y >= LINES)
+		    y = 1;
+		break;
+	    case KEY_UP:
+	    case 'k':
+		if (--y < 1)
+		    y = LINES - 1;
+		break;
+	    case KEY_RIGHT:
+	    case 'l':
+		if (++x >= COLS)
+		    x = 0;
+		break;
+	    }
+	    if (!done) {
+		time_t now = time((time_t *) 0);
+
+		move(0, 0);
+		addstr(ctime(&now));
+		move(y, x);
+		addch('#' | A_REVERSE);
+		move(y, x);
+	    }
+	}
+    }
+    ExitProgram(EXIT_SUCCESS);
+}
+#else
+int
+main(int argc, char *argv[])
+{
+    printf("This program requires the screen-dump functions\n");
+    ExitProgram(EXIT_FAILURE);
+}
+#endif