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diff --git a/test/movewindow.c b/test/movewindow.c
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+/****************************************************************************
+ * Copyright (c) 2006-2008,2010 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. *
+ ****************************************************************************/
+/*
+ * $Id: movewindow.c,v 1.24 2010/11/13 23:34:55 tom Exp $
+ *
+ * Demonstrate move functions for windows and derived windows from the curses
+ * library.
+ *
+ * Thomas Dickey - 2006/2/11
+ */
+/*
+derwin
+mvderwin
+subwin
+mvwin
+ */
+
+#include <test.priv.h>
+#include <stdarg.h>
+
+#ifdef HAVE_XCURSES
+#undef derwin
+#endif
+
+#ifdef NCURSES_VERSION
+#define CONST_FMT const
+#else
+#define CONST_FMT /* nothing */
+#endif
+
+#undef LINE_MAX
+
+#define LINE_MIN 2
+#define LINE_MAX (LINES - 2)
+#define COL_MIN 2
+#define COL_MAX (COLS - 2)
+
+typedef struct {
+ int y, x;
+} PAIR;
+
+typedef struct {
+ WINDOW *parent; /* need this since WINDOW->_parent is not portable */
+ WINDOW *child; /* the actual value */
+} FRAME;
+
+static void head_line(CONST_FMT char *fmt,...) GCC_PRINTFLIKE(1, 2);
+static void tail_line(CONST_FMT char *fmt,...) GCC_PRINTFLIKE(1, 2);
+
+static unsigned num_windows;
+static FRAME *all_windows;
+
+static void
+message(int lineno, CONST_FMT char *fmt, va_list argp)
+{
+ int y, x;
+
+ getyx(stdscr, y, x);
+ move(lineno, 0);
+ clrtoeol();
+
+#ifdef HAVE_XCURSES
+ {
+ char buffer[1024];
+ vsprintf(buffer, fmt, argp);
+ addstr(buffer);
+ }
+#else
+ vwprintw(stdscr, fmt, argp);
+#endif
+
+ move(y, x);
+ refresh();
+}
+
+static void
+head_line(CONST_FMT char *fmt,...)
+{
+ va_list argp;
+
+ va_start(argp, fmt);
+ message(0, fmt, argp);
+ va_end(argp);
+}
+
+static void
+tail_line(CONST_FMT char *fmt,...)
+{
+ va_list argp;
+
+ va_start(argp, fmt);
+ message(LINES - 1, fmt, argp);
+ va_end(argp);
+}
+
+/*
+ * Arrow keys move cursor, return location at current on non-arrow key.
+ */
+static PAIR *
+selectcell(WINDOW *parent, int uli, int ulj, int lri, int lrj)
+{
+ static PAIR res; /* result cell */
+ int si = lri - uli + 1; /* depth of the select area */
+ int sj = lrj - ulj + 1; /* width of the select area */
+ int i = 0, j = 0; /* offsets into the select area */
+
+ res.y = uli;
+ res.x = ulj;
+ for (;;) {
+ tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d",
+ uli, ulj,
+ lri, lrj,
+ uli + i, ulj + j);
+ wmove(parent, uli + i, ulj + j);
+
+ switch (wgetch(parent)) {
+ case KEY_UP:
+ i += si - 1;
+ break;
+ case KEY_DOWN:
+ i++;
+ break;
+ case KEY_LEFT:
+ j += sj - 1;
+ break;
+ case KEY_RIGHT:
+ j++;
+ break;
+ case QUIT:
+ case ESCAPE:
+ return ((PAIR *) 0);
+#ifdef NCURSES_MOUSE_VERSION
+ case KEY_MOUSE:
+ {
+ MEVENT event;
+
+ getmouse(&event);
+ if (event.y > uli && event.x > ulj) {
+ i = event.y - uli;
+ j = event.x - ulj;
+ } else {
+ beep();
+ break;
+ }
+ }
+ /* FALLTHRU */
+#endif
+ default:
+ res.y = uli + i;
+ res.x = ulj + j;
+ return (&res);
+ }
+ i %= si;
+ j %= sj;
+ }
+}
+
+/*
+ * Ask user for a window definition.
+ */
+static bool
+getwindow(WINDOW *parent, PAIR * ul, PAIR * lr)
+{
+ int min_col = (parent == stdscr) ? COL_MIN : 0;
+ int max_col = (parent == stdscr) ? COL_MAX : getmaxx(parent);
+ int min_line = (parent == stdscr) ? LINE_MIN : 0;
+ int max_line = (parent == stdscr) ? LINE_MAX : getmaxy(parent);
+ PAIR *tmp;
+ bool result = FALSE;
+
+ head_line("Use arrows to move cursor, anything else to mark corner 1");
+ if ((tmp = selectcell(parent, min_line, min_col, max_line, max_col)) != 0) {
+ *ul = *tmp;
+ MvWAddCh(parent, ul->y, ul->x, '*');
+
+ head_line("Use arrows to move cursor, anything else to mark corner 2");
+ if ((tmp = selectcell(parent, ul->y, ul->x, max_line, max_col)) != 0) {
+ *lr = *tmp;
+ MvWAddCh(parent, lr->y, lr->x, '*');
+ wmove(parent, lr->y, lr->x);
+ wsyncdown(parent);
+ wrefresh(parent);
+ result = (lr->y != ul->y && lr->x != ul->x);
+ }
+ }
+ head_line("done");
+ return result;
+}
+
+/*
+ * Draw a box inside the given window.
+ */
+static void
+box_inside(WINDOW *win)
+{
+ int y0, x0;
+ int y1, x1;
+
+ getyx(win, y0, x0);
+ getmaxyx(win, y1, x1);
+
+ MvWHLine(win, 0, 0, ACS_HLINE, x1);
+ MvWHLine(win, y1 - 1, 0, ACS_HLINE, x1);
+
+ MvWVLine(win, 0, 0, ACS_VLINE, y1);
+ MvWVLine(win, 0, x1 - 1, ACS_VLINE, y1);
+
+ MvWAddCh(win, 0, 0, ACS_ULCORNER);
+ MvWAddCh(win, y1 - 1, 0, ACS_LLCORNER);
+ MvWAddCh(win, 0, x1 - 1, ACS_URCORNER);
+ MvWAddCh(win, y1 - 1, x1 - 1, ACS_LRCORNER);
+
+ wsyncdown(win);
+ wmove(win, y0, x0);
+ wrefresh(win);
+}
+
+/*
+ * Add a window to our list.
+ */
+static void
+add_window(WINDOW *parent, WINDOW *child)
+{
+ static unsigned have = 0;
+ unsigned need = ((num_windows + 1) | 31) + 1;
+
+ keypad(child, TRUE);
+ if (need > have) {
+ all_windows = typeRealloc(FRAME, need, all_windows);
+ }
+ all_windows[num_windows].parent = parent;
+ all_windows[num_windows].child = child;
+ num_windows++;
+}
+
+static int
+window2num(WINDOW *win)
+{
+ int n;
+ int result = -1;
+ for (n = 0; n < (int) num_windows; ++n) {
+ if (win == all_windows[n].child) {
+ result = n;
+ break;
+ }
+ }
+ return result;
+}
+
+static WINDOW *
+parent_of(WINDOW *win)
+{
+ WINDOW *result = 0;
+ int n = window2num(win);
+ if (n >= 0)
+ result = all_windows[n].parent;
+ return result;
+}
+
+static void
+repaint_one(WINDOW *win)
+{
+ touchwin(win);
+ wnoutrefresh(win);
+}
+
+static void
+refresh_all(WINDOW *win)
+{
+ unsigned n;
+
+ for (n = 0; n < num_windows; ++n) {
+ if (all_windows[n].child != win) {
+ repaint_one(all_windows[n].child);
+ }
+ }
+
+ repaint_one(win);
+ doupdate();
+}
+
+static WINDOW *
+next_window(WINDOW *win)
+{
+ WINDOW *result = win;
+ int n = window2num(win);
+
+ if (n++ >= 0) {
+ result = all_windows[(unsigned) n % num_windows].child;
+ wmove(result, 0, 0);
+ wrefresh(result);
+ }
+ return result;
+}
+
+static WINDOW *
+prev_window(WINDOW *win)
+{
+ WINDOW *result = win;
+ int n = window2num(win);
+
+ if (n-- >= 0) {
+ if (n < 0)
+ n = (int) (num_windows - 1);
+ result = all_windows[(unsigned) n % num_windows].child;
+ wmove(result, 0, 0);
+ wrefresh(result);
+ }
+ return result;
+}
+
+static void
+recur_move_window(WINDOW *parent, int dy, int dx)
+{
+ unsigned n;
+
+ for (n = 0; n < num_windows; ++n) {
+ if (all_windows[n].parent == parent) {
+ int y0, x0;
+
+ getbegyx(all_windows[n].child, y0, x0);
+ mvwin(all_windows[n].child, y0 + dy, x0 + dx);
+ recur_move_window(all_windows[n].child, dy, dx);
+ }
+ }
+}
+
+/*
+ * test mvwin().
+ */
+static bool
+move_window(WINDOW *win, bool recur)
+{
+ WINDOW *parent = parent_of(win);
+ bool result = FALSE;
+
+ if (parent != 0) {
+ bool top = (parent == stdscr);
+ int min_col = top ? COL_MIN : 0;
+ int max_col = top ? COL_MAX : getmaxx(parent);
+ int min_line = top ? LINE_MIN : 0;
+ int max_line = top ? LINE_MAX : getmaxy(parent);
+ PAIR *tmp;
+
+ head_line("Select new position for %swindow", top ? "" : "sub");
+
+ if ((tmp = selectcell(parent,
+ min_line, min_col,
+ max_line, max_col)) != 0) {
+ int y0, x0;
+ getbegyx(parent, y0, x0);
+ /*
+ * Note: Moving a subwindow has the effect of moving a viewport
+ * around the screen. The parent window retains the contents of
+ * the subwindow in the original location, but the viewport will
+ * show the contents (again) at the new location. So it will look
+ * odd when testing.
+ */
+ if (mvwin(win, y0 + tmp->y, x0 + tmp->x) != ERR) {
+ if (recur) {
+ recur_move_window(win, tmp->y, tmp->x);
+ }
+ refresh_all(win);
+ doupdate();
+ result = TRUE;
+ }
+ }
+ }
+ return result;
+}
+
+/*
+ * test mvderwin().
+ */
+static bool
+move_subwin(WINDOW *win)
+{
+ WINDOW *parent = parent_of(win);
+ bool result = FALSE;
+
+ if (parent != 0) {
+ bool top = (parent == stdscr);
+ if (!top) {
+ int min_col = top ? COL_MIN : 0;
+ int max_col = top ? COL_MAX : getmaxx(parent);
+ int min_line = top ? LINE_MIN : 0;
+ int max_line = top ? LINE_MAX : getmaxy(parent);
+ PAIR *tmp;
+
+ head_line("Select new position for subwindow");
+
+ if ((tmp = selectcell(parent,
+ min_line, min_col,
+ max_line, max_col)) != 0) {
+ int y0, x0;
+ getbegyx(parent, y0, x0);
+ if (mvderwin(win, y0 + tmp->y, x0 + tmp->x) != ERR) {
+ refresh_all(win);
+ doupdate();
+ result = TRUE;
+ }
+ }
+ }
+ }
+ return result;
+}
+
+static void
+fill_window(WINDOW *win, chtype ch)
+{
+ int y, x;
+ int y0, x0;
+ int y1, x1;
+
+ getyx(win, y0, x0);
+ getmaxyx(win, y1, x1);
+ for (y = 0; y < y1; ++y) {
+ for (x = 0; x < x1; ++x) {
+ MvWAddCh(win, y, x, ch);
+ }
+ }
+ wsyncdown(win);
+ wmove(win, y0, x0);
+ wrefresh(win);
+}
+
+#define lines_of(ul,lr) (lr.y - ul.y + 1)
+#define cols_of(ul,lr) (lr.x - ul.x + 1)
+#define pair_of(ul) ul.y, ul.x
+
+static WINDOW *
+create_my_window(WINDOW *current)
+{
+ PAIR ul, lr;
+ WINDOW *result = 0;
+
+ if (getwindow(stdscr, &ul, &lr)) {
+ result = newwin(lines_of(ul, lr), cols_of(ul, lr), pair_of(ul));
+ if (result != 0) {
+ fill_window(result, 'c');
+ add_window(stdscr, result);
+ }
+ }
+ if (result == 0)
+ result = current;
+ return result;
+}
+
+static WINDOW *
+create_my_derwin(WINDOW *parent)
+{
+ PAIR ul, lr;
+ WINDOW *result = 0;
+
+ if (getwindow(parent, &ul, &lr)) {
+ result = derwin(parent, lines_of(ul, lr), cols_of(ul, lr), pair_of(ul));
+ if (result != 0) {
+ fill_window(result, 'd');
+ add_window(parent, result);
+ }
+ }
+ if (result == 0)
+ result = parent;
+ return result;
+}
+
+static WINDOW *
+create_my_subwin(WINDOW *parent)
+{
+ PAIR ul, lr;
+ WINDOW *result = 0;
+
+ if (getwindow(parent, &ul, &lr)) {
+ result = subwin(parent,
+ lines_of(ul, lr),
+ cols_of(ul, lr),
+ ul.y + getbegy(parent),
+ ul.x + getbegx(parent));
+ if (result != 0) {
+ fill_window(result, 's');
+ add_window(parent, result);
+ }
+ }
+ if (result == 0)
+ result = parent;
+ return result;
+}
+
+static void
+show_help(WINDOW *current)
+{
+ /* *INDENT-OFF* */
+ static struct {
+ int key;
+ CONST_FMT char * msg;
+ } help[] = {
+ { '?', "Show this screen" },
+ { 'b', "Draw a box inside the current window" },
+ { 'c', "Create a new window" },
+ { 'd', "Create a new derived window" },
+ { 'f', "Fill the current window with the next character" },
+ { 'm', "Move the current window" },
+ { 'M', "Move the current window (and its children)" },
+ { 'q', "Quit" },
+ { 's', "Create a new subwindow" },
+ { 't', "Move the current subwindow (moves content)" },
+ { CTRL('L'), "Repaint all windows, doing current one last" },
+ { CTRL('N'), "Cursor to next window" },
+ { CTRL('P'), "Cursor to previous window" },
+ };
+ /* *INDENT-ON* */
+
+ WINDOW *mywin = newwin(LINES, COLS, 0, 0);
+ int row;
+
+ for (row = 0; row < LINES - 2 && row < (int) SIZEOF(help); ++row) {
+ wmove(mywin, row + 1, 1);
+ wprintw(mywin, "%s", keyname(help[row].key));
+ wmove(mywin, row + 1, 20);
+ wprintw(mywin, "%s", help[row].msg);
+ }
+ box_inside(mywin);
+ wmove(mywin, 1, 1);
+ wgetch(mywin);
+ delwin(mywin);
+ refresh_all(current);
+}
+
+int
+main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+{
+ WINDOW *current_win;
+ int ch;
+ bool done = FALSE;
+
+ initscr();
+ cbreak();
+ noecho();
+ nonl();
+ intrflush(stdscr, FALSE);
+
+ add_window(0, current_win = stdscr);
+
+#ifdef NCURSES_MOUSE_VERSION
+ (void) mousemask(BUTTON1_CLICKED, (mmask_t *) NULL);
+#endif /* NCURSES_MOUSE_VERSION */
+
+ while (!done && (ch = wgetch(current_win)) != ERR) {
+ switch (ch) {
+ case '?':
+ show_help(current_win);
+ break;
+ case 'b':
+ box_inside(current_win);
+ break;
+ case 'c':
+ current_win = create_my_window(current_win);
+ break;
+ case 'd':
+ current_win = create_my_derwin(current_win);
+ break;
+ case 'f':
+ fill_window(current_win, (chtype) wgetch(current_win));
+ break;
+ case 'm':
+ case 'M':
+ if (!move_window(current_win, (ch == 'M'))) {
+ tail_line("error");
+ continue;
+ }
+ break;
+ case 'q':
+ done = TRUE;
+ break;
+ case 's':
+ current_win = create_my_subwin(current_win);
+ break;
+ case 't':
+ if (!move_subwin(current_win)) {
+ tail_line("error");
+ continue;
+ }
+ break;
+ case CTRL('L'):
+ refresh_all(current_win);
+ break;
+ case CTRL('N'):
+ current_win = next_window(current_win);
+ break;
+ case CTRL('P'):
+ current_win = prev_window(current_win);
+ break;
+#if 0
+ /* want to allow cursor to move around the current window too */
+ /* want to test the resizing of windows and subwindows too */
+ /* want to allow deleting a window also */
+#endif
+ default:
+ tail_line("unrecognized key (use '?' for help)");
+ beep();
+ continue;
+ }
+ tail_line("size [%d,%d] begin [%d,%d] parent [%d,%d]",
+ getmaxy(current_win),
+ getmaxx(current_win),
+ getbegy(current_win),
+ getbegx(current_win),
+ getpary(current_win),
+ getparx(current_win));
+ wmove(current_win, 0, 0);
+ }
+ endwin();
+ ExitProgram(EXIT_SUCCESS);
+}
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