Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
Thomas E. Dickey (beginning revision 1.27 in 1996).
-$Id: ncurses.c,v 1.469 2017/10/01 18:22:48 tom Exp $
+$Id: ncurses.c,v 1.487 2017/10/28 00:54:41 tom Exp $
***************************************************************************/
{
printw("\nThis %s terminal %s\n\n", getenv("TERM"), what);
Pause();
+ endwin();
}
static void
attr_t attr;
cchar_t ch;
NCURSES_PAIRS_T pair;
- wchar_t wch[10];
+ wchar_t wch[CCHARW_MAX];
memset(&ch, 0, sizeof(ch));
if (getbkgrnd(&ch) != ERR) {
while (!done) {
int shown = 0;
+ double colors_max2 = (double) colors_max * (double) colors_max;
pairs_max = PAIR_NUMBER(A_COLOR) + 1;
- if (colors_max * colors_max <= COLOR_PAIRS) {
+ if (colors_max2 <= COLOR_PAIRS) {
int limit = (colors_max - MinColors) * (colors_max - MinColors);
if (pairs_max > limit)
pairs_max = limit;
- } else {
- if (pairs_max > COLOR_PAIRS)
- pairs_max = COLOR_PAIRS;
}
+ if (pairs_max < COLOR_PAIRS)
+ pairs_max = COLOR_PAIRS;
/* this assumes an 80-column line */
if (opt_wide) {
while (!done) {
int shown = 0;
+ double colors_max2 = (double) colors_max * (double) colors_max;
- pairs_max = (unsigned short) (-1);
- if (colors_max * colors_max <= COLOR_PAIRS) {
+ pairs_max = ((unsigned) (-1)) / 2;
+ if (colors_max2 <= COLOR_PAIRS) {
int limit = (colors_max - MinColors) * (colors_max - MinColors);
if (pairs_max > limit)
pairs_max = limit;
- } else {
- if (pairs_max > COLOR_PAIRS)
- pairs_max = COLOR_PAIRS;
}
+ if (pairs_max > COLOR_PAIRS)
+ pairs_max = COLOR_PAIRS;
if (opt_wide) {
width = 4;
****************************************************************************/
#if HAVE_COPYWIN /* ...and overlay, overwrite */
+
+static WINDOW *
+make_overlap(int n)
+{
+ WINDOW *result;
+ int y, x;
+
+ getmaxyx(stdscr, y, x);
+ if (y < 23 || x < 80) {
+ Cannot("The screen is too small for this test");
+ result = 0;
+ } else {
+ const int H_SIZE = 1; /* header-size */
+ const int F_SIZE = 6; /* footer-size */
+ int ymax = y - (H_SIZE + F_SIZE);
+ int high = ymax / 5; /* equal-sized parts for cross */
+ int xmax = x - 2; /* margin */
+ int wide = (xmax / 5) & ~1;
+ int lmar, tmar;
+
+ if (high > 8)
+ high = 8;
+
+ if (wide > 8)
+ wide = 8;
+
+ tmar = (ymax - (5 * high)) / 2 + H_SIZE;
+ lmar = (xmax - (5 * wide)) / 2;
+
+ if (n == 0) {
+ result = newwin(3 * high, 3 * wide, tmar, lmar);
+ } else {
+ result = newwin(3 * high, 3 * wide, tmar + 2 * high, lmar + 2 * wide);
+ }
+ }
+ return result;
+}
+
static void
fillwin(WINDOW *win, char ch)
{
}
}
+#define InCross(x,y, x1,y1) \
+ (((x > (x1 - 1) / 3) && (x <= (2 * (x1 - 1)) / 3)) \
+ || (((y > (y1 - 1) / 3) && (y <= (2 * (y1 - 1)) / 3))))
+
static void
crosswin(WINDOW *win, char ch)
{
int y, x;
int y1, x1;
+ int xw = 1;
getmaxyx(win, y1, x1);
for (y = 0; y < y1; y++) {
- for (x = 0; x < x1; x++)
- if (((x > (x1 - 1) / 3) && (x <= (2 * (x1 - 1)) / 3))
- || (((y > (y1 - 1) / 3) && (y <= (2 * (y1 - 1)) / 3)))) {
+ for (x = 0; x < x1; x += xw) {
+ if (InCross(x, y, x1, y1)) {
wmove(win, y, x);
waddch(win, UChar(ch));
}
+ }
}
}
-#define OVERLAP_FLAVORS 5
+/*
+ * Match "crosswin()", but using line-drawing characters. This could be done
+ * a little simpler using box(), but the reason for this example is to test
+ * hline/vline and addch with line-drawing vs the copy/overlay functions.
+ */
+static void
+crossbox(WINDOW *win)
+{
+ int y1, x1;
+ int ymax, xmax;
+
+ getmaxyx(win, y1, x1);
+
+ ymax = (y1 + 1);
+ xmax = (x1 + 1);
+
+ mvwhline(win, 0, (xmax / 3), ACS_HLINE, (xmax / 3));
+ mvwhline(win, ymax / 3, 0, ACS_HLINE, xmax);
+ mvwhline(win, ((2 * ymax) / 3) - 1, 0, ACS_HLINE, xmax);
+ mvwhline(win, y1 - 1, (xmax / 3), ACS_HLINE, (xmax / 3));
+
+ mvwvline(win, (ymax / 3), 0, ACS_VLINE, (ymax / 3));
+ mvwvline(win, 0, xmax / 3, ACS_VLINE, ymax);
+ mvwvline(win, 0, ((2 * xmax) / 3) - 1, ACS_VLINE, ymax);
+ mvwvline(win, (ymax / 3), x1 - 1, ACS_VLINE, (ymax / 3));
+
+ mvwaddch(win, 0, (xmax / 3), ACS_ULCORNER);
+ mvwaddch(win, 0, ((2 * xmax) / 3) - 1, ACS_URCORNER);
+ mvwaddch(win, y1 - 1, (xmax / 3), ACS_LLCORNER);
+ mvwaddch(win, y1 - 1, ((2 * xmax) / 3) - 1, ACS_LRCORNER);
+
+ mvwaddch(win, (ymax / 3), 0, ACS_ULCORNER);
+ mvwaddch(win, ((2 * ymax) / 3) - 1, 0, ACS_LLCORNER);
+ mvwaddch(win, (ymax / 3), x1 - 1, ACS_URCORNER);
+ mvwaddch(win, ((2 * ymax) / 3) - 1, x1 - 1, ACS_LRCORNER);
+
+ mvwaddch(win, (ymax / 3), (xmax / 3), ACS_PLUS);
+ mvwaddch(win, (ymax / 3), ((2 * xmax) / 3) - 1, ACS_PLUS);
+ mvwaddch(win, ((2 * ymax) / 3) - 1, ((2 * xmax) / 3) - 1, ACS_PLUS);
+ mvwaddch(win, ((2 * ymax) / 3) - 1, (xmax / 3), ACS_PLUS);
+}
+
+typedef enum {
+ otBASE_refresh = 0
+ ,otBASE_fill
+ ,otBASE_draw
+ ,otBASE_clear
+ ,otBASE_copy
+} otBASE;
+
+#define OVERLAP_FLAVORS 6
+
+typedef enum {
+ otFILL_normal = 0
+ ,otFILL_bold
+ ,otFILL_color
+ ,otFILL_bright
+} otFILL;
+
+#define LimitFILL() UseColors ? 4 : 2
+
+typedef enum {
+ otDRAW_text_cross = 0
+ ,otDRAW_line_box
+ ,otDRAW_line_cross
+ ,otDRAW_set_bg
+ ,otDRAW_reset_bg
+} otDRAW;
+
+#define LimitDRAW() UseColors ? 5 : 3
+
+typedef enum {
+ otCOPY_overwrite = 0
+ ,otCOPY_merge
+ ,otCOPY_force
+ ,otCOPY_overlay
+} otCOPY;
+
+#define LimitCOPY() 4
static void
overlap_helpitem(int state, int item, char *message)
{
NCURSES_PAIRS_T cpair = (NCURSES_PAIRS_T) (1 + (flavor * 2) + col);
- switch (flavor) {
- case 0:
+ switch ((otFILL) flavor) {
+ case otFILL_normal:
(void) wattrset(win, A_NORMAL);
break;
- case 1:
+ case otFILL_bold:
(void) wattrset(win, A_BOLD);
break;
- case 2:
+ case otFILL_color:
init_pair(cpair, COLOR_BLUE, COLOR_WHITE);
(void) wattrset(win, AttrArg(COLOR_PAIR(cpair), A_NORMAL));
break;
- case 3:
+ case otFILL_bright:
init_pair(cpair, COLOR_WHITE, COLOR_BLUE);
(void) wattrset(win, AttrArg(COLOR_PAIR(cpair), A_BOLD));
break;
{
NCURSES_PAIRS_T cpair = (NCURSES_PAIRS_T) (9 + (flavor * 2) + col);
- switch (flavor) {
- case 0:
+ switch ((otDRAW) flavor) {
+ case otDRAW_text_cross:
/* no effect */
break;
- case 1:
+ case otDRAW_line_box:
/* no effect */
break;
- case 2:
+ case otDRAW_line_cross:
+ /* no effect */
+ break;
+ case otDRAW_set_bg:
init_pair(cpair, COLOR_RED, COLOR_GREEN);
wbkgdset(win, colored_chtype(' ', A_BLINK, cpair));
break;
- case 3:
+ case otDRAW_reset_bg:
wbkgdset(win, ' ' | A_NORMAL);
break;
}
int row;
int col;
int item;
+ int limit[OVERLAP_FLAVORS];
const char *ths, *tht;
char msg[80];
ths = col ? "B" : "A";
tht = col ? "A" : "B";
- switch (row) {
- case 0:
+ switch ((otBASE) row) {
+ case otBASE_refresh:
+ limit[row] = 1;
flavors[row] = 0;
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"refresh %s, then %s, then doupdate.", ths, tht);
break;
- case 1:
- if (UseColors) {
- flavors[row] %= 4;
- } else {
- flavors[row] %= 2;
- }
+ case otBASE_fill:
+ limit[row] = LimitFILL();
+ flavors[row] %= limit[row];
overlap_test_1_attr(stdscr, flavors[row], col);
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"fill window %s with letter %s.", ths, ths);
break;
- case 2:
- if (UseColors) {
- flavors[row] %= 4;
- } else {
- flavors[row] %= 2;
- }
- switch (flavors[row]) {
- case 0:
+ case otBASE_draw:
+ limit[row] = LimitDRAW();
+ flavors[row] %= limit[row];
+ switch ((otDRAW) flavors[row]) {
+ case otDRAW_text_cross:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
- "cross pattern in window %s.", ths);
+ "cross text-pattern in window %s.", ths);
break;
- case 1:
+ case otDRAW_line_box:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
- "draw box in window %s.", ths);
+ "draw line-box in window %s.", ths);
break;
- case 2:
+ case otDRAW_line_cross:
+ _nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+ "draw line-cross in window %s.", ths);
+ break;
+ case otDRAW_set_bg:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"set background of window %s.", ths);
break;
- case 3:
+ case otDRAW_reset_bg:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"reset background of window %s.", ths);
break;
}
break;
- case 3:
+ case otBASE_clear:
+ limit[row] = 1;
flavors[row] = 0;
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"clear window %s.", ths);
break;
- case 4:
- flavors[row] %= 4;
- switch (flavors[row]) {
- case 0:
+ case otBASE_copy:
+ limit[row] = LimitCOPY();
+ flavors[row] %= limit[row];
+ switch ((otCOPY) flavors[row]) {
+ case otCOPY_overwrite:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"overwrite %s onto %s.", ths, tht);
break;
- case 1:
+ case otCOPY_merge:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"copywin(FALSE) %s onto %s.", ths, tht);
break;
- case 2:
+ case otCOPY_force:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"copywin(TRUE) %s onto %s.", ths, tht);
break;
- case 3:
+ case otCOPY_overlay:
_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
"overlay %s onto %s.", ths, tht);
break;
wbkgdset(stdscr, ' ' | A_NORMAL);
}
move(LINES - 1, 0);
- printw("^Q/ESC = terminate test. Up/down/space select test variations (%d %d).",
- state, flavors[state]);
+ printw("^Q/ESC = terminate test. Up/down/space select tests (row %d",
+ state + 1);
+ if (limit[state] > 1)
+ printw(" test %d:%d", 1 + flavors[state], limit[state]);
+ printw(").");
+ clrtoeol();
return state;
}
overlap_test_2(int flavor, int col, WINDOW *a, char fill)
{
overlap_test_2_attr(a, flavor, col);
- switch (flavor) {
- case 0:
+ switch ((otDRAW) flavor) {
+ case otDRAW_text_cross:
crosswin(a, fill);
break;
- case 1:
+ case otDRAW_line_box:
box(a, 0, 0);
break;
- case 2:
+ case otDRAW_line_cross:
+ crossbox(a);
+ break;
+ case otDRAW_set_bg:
/* done in overlap_test_2_attr */
break;
- case 3:
+ case otDRAW_reset_bg:
/* done in overlap_test_2_attr */
break;
}
static void
overlap_test_4(int flavor, WINDOW *a, WINDOW *b)
{
- switch (flavor) {
- case 0:
+ switch ((otCOPY) flavor) {
+ case otCOPY_overwrite:
overwrite(a, b);
break;
- case 1:
+ case otCOPY_merge:
copywin(a, b, 0, 0, 0, 0, getmaxy(b), getmaxx(b), FALSE);
break;
- case 2:
+ case otCOPY_force:
copywin(a, b, 0, 0, 0, 0, getmaxy(b), getmaxx(b), TRUE);
break;
- case 3:
+ case otCOPY_overlay:
overlay(a, b);
break;
}
static int
overlap_test(bool recur GCC_UNUSED)
{
+ WINDOW *win1, *win2;
+ int ch;
+ int state, flavor[OVERLAP_FLAVORS];
+
+ if ((win1 = make_overlap(0)) == 0
+ || (win2 = make_overlap(1)) == 0)
+ return ERR;
+
+ curs_set(0);
+ raw();
+ refresh();
+ move(0, 0);
+ printw("Test wnoutrefresh() for two overlapping windows:");
+
+ memset(flavor, 0, sizeof(flavor));
+ state = overlap_help(0, flavor);
+
+ while (!isQuit(ch = Getchar(), TRUE)) {
+ switch (ch) {
+ case 'a': /* refresh window A first, then B */
+ overlap_test_0(win1, win2);
+ break;
+
+ case 'b': /* refresh window B first, then A */
+ overlap_test_0(win2, win1);
+ break;
+
+ case 'c': /* fill window A so it's visible */
+ overlap_test_1(flavor[otBASE_fill], 0, win1, 'A');
+ break;
+
+ case 'd': /* fill window B so it's visible */
+ overlap_test_1(flavor[otBASE_fill], 1, win2, 'B');
+ break;
+
+ case 'e': /* cross test pattern in window A */
+ overlap_test_2(flavor[otBASE_draw], 0, win1, 'A');
+ break;
+
+ case 'f': /* cross test pattern in window A */
+ overlap_test_2(flavor[otBASE_draw], 1, win2, 'B');
+ break;
+
+ case 'g': /* clear window A */
+ overlap_test_3(win1);
+ break;
+
+ case 'h': /* clear window B */
+ overlap_test_3(win2);
+ break;
+
+ case 'i': /* overwrite A onto B */
+ overlap_test_4(flavor[otBASE_copy], win1, win2);
+ break;
+
+ case 'j': /* overwrite B onto A */
+ overlap_test_4(flavor[otBASE_copy], win2, win1);
+ break;
+
+ case CTRL('n'):
+ case KEY_DOWN:
+ state = overlap_help(state + 1, flavor);
+ break;
+
+ case CTRL('p'):
+ case KEY_UP:
+ state = overlap_help(state - 1, flavor);
+ break;
+
+ case ' ':
+ flavor[state] += 1;
+ state = overlap_help(state, flavor);
+ break;
+
+ case HELP_KEY_1:
+ state = overlap_help(state, flavor);
+ break;
+
+ default:
+ beep();
+ break;
+ }
+ }
+
+ delwin(win2);
+ delwin(win1);
+ erase();
+ exit_curses();
+ return OK;
+}
+
+#if USE_WIDEC_SUPPORT
+static void
+x_fillwin(WINDOW *win, wchar_t ch)
+{
+ int y, x;
+ int y1, x1;
+
+ getmaxyx(win, y1, x1);
+ x1 /= 2;
+ for (y = 0; y < y1; y++) {
+ wmove(win, y, 0);
+ for (x = 0; x < x1; x++)
+ waddnwstr(win, &ch, 1);
+ }
+}
+
+static void
+x_crosswin(WINDOW *win, wchar_t ch)
+{
+ int y, x;
+ int y1, x1;
+ int xw = 2;
+
+ getmaxyx(win, y1, x1);
+ for (y = 0; y < y1; y++) {
+ for (x = 0; x < x1; x += xw) {
+ if (InCross(x, y, x1, y1)) {
+ wmove(win, y, x);
+ waddnwstr(win, &ch, 1);
+ }
+ }
+ }
+}
+
+static void
+x_overlap_test_1(int flavor, int col, WINDOW *a, wchar_t fill)
+{
+ overlap_test_1_attr(a, flavor, col);
+ x_fillwin(a, fill);
+ (void) wattrset(a, A_NORMAL);
+}
+
+static void
+x_overlap_test_2(int flavor, int col, WINDOW *a, wchar_t fill)
+{
+ overlap_test_2_attr(a, flavor, col);
+ switch ((otDRAW) flavor) {
+ case otDRAW_text_cross:
+ x_crosswin(a, fill);
+ break;
+ case otDRAW_line_box:
+ box(a, 0, 0);
+ break;
+ case otDRAW_line_cross:
+ crossbox(a);
+ break;
+ case otDRAW_set_bg:
+ /* done in overlap_test_2_attr */
+ break;
+ case otDRAW_reset_bg:
+ /* done in overlap_test_2_attr */
+ break;
+ }
+}
+
+/* test effects of overlapping windows */
+static int
+x_overlap_test(bool recur GCC_UNUSED)
+{
+ const wchar_t WIDE_A = 0xff21;
+ const wchar_t WIDE_B = 0xff22;
+ WINDOW *win1, *win2;
int ch;
int state, flavor[OVERLAP_FLAVORS];
- WINDOW *win1 = newwin(9, 20, 3, 3);
- WINDOW *win2 = newwin(9, 20, 9, 16);
+ if ((win1 = make_overlap(0)) == 0
+ || (win2 = make_overlap(1)) == 0)
+ return ERR;
curs_set(0);
raw();
refresh();
move(0, 0);
- printw("This test shows the behavior of wnoutrefresh() with respect to\n");
- printw("the shared region of two overlapping windows A and B. The cross\n");
- printw("pattern in each window does not overlap the other.\n");
+ printw("Test wnoutrefresh() for overlapping windows with double-cell characters:");
memset(flavor, 0, sizeof(flavor));
state = overlap_help(0, flavor);
- while (!isQuit(ch = Getchar(), TRUE))
+ while (!isQuit(ch = Getchar(), TRUE)) {
switch (ch) {
case 'a': /* refresh window A first, then B */
overlap_test_0(win1, win2);
break;
case 'c': /* fill window A so it's visible */
- overlap_test_1(flavor[1], 0, win1, 'A');
+ x_overlap_test_1(flavor[otBASE_fill], 0, win1, WIDE_A);
break;
case 'd': /* fill window B so it's visible */
- overlap_test_1(flavor[1], 1, win2, 'B');
+ x_overlap_test_1(flavor[otBASE_fill], 1, win2, WIDE_B);
break;
case 'e': /* cross test pattern in window A */
- overlap_test_2(flavor[2], 0, win1, 'A');
+ x_overlap_test_2(flavor[otBASE_draw], 0, win1, WIDE_A);
break;
case 'f': /* cross test pattern in window A */
- overlap_test_2(flavor[2], 1, win2, 'B');
+ x_overlap_test_2(flavor[otBASE_draw], 1, win2, WIDE_B);
break;
case 'g': /* clear window A */
break;
case 'i': /* overwrite A onto B */
- overlap_test_4(flavor[4], win1, win2);
+ overlap_test_4(flavor[otBASE_copy], win1, win2);
break;
case 'j': /* overwrite B onto A */
- overlap_test_4(flavor[4], win2, win1);
+ overlap_test_4(flavor[otBASE_copy], win2, win1);
break;
case CTRL('n'):
beep();
break;
}
+ }
delwin(win2);
delwin(win1);
exit_curses();
return OK;
}
+#endif /* USE_WIDEC_SUPPORT */
#endif /* HAVE_COPYWIN */
CMDS(TRUE, ONLY(form_test), 'r', "exercise form library"),
#endif
#if HAVE_COPYWIN
- CMDS(TRUE, ONLY(overlap_test), 's', "overlapping-refresh test"),
+ CMDS(TRUE, BOTH(overlap_test), 's', "overlapping-refresh test"),
#endif
#if USE_LIBMENU && defined(TRACE)
CMDS(TRUE, ONLY(trace_set), 't', "set trace level"),
projects / ncurses.git / blobdiff