Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
Thomas E. Dickey (beginning revision 1.27 in 1996).
-$Id: ncurses.c,v 1.487 2017/10/28 00:54:41 tom Exp $
+$Id: ncurses.c,v 1.502 2017/11/02 20:46:06 tom Exp $
***************************************************************************/
};
static void
-show_color_name(int y, int x, int color, bool wide)
+show_color_name(int y, int x, int color, bool wide, int zoom)
{
if (move(y, x) != ERR) {
char temp[80];
int width = 8;
- if (wide) {
+ if (wide || zoom) {
+ int have;
+
_nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
"%02d", color);
- width = 4;
+ if (wide)
+ width = 4;
+ if ((have = (int) strlen(temp)) >= width) {
+ int pwr2 = 0;
+ while ((1 << pwr2) < color)
+ ++pwr2;
+ _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+ width > 4 ? "2^%d" : "^%d", pwr2);
+ }
} else if (color >= 8) {
_nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
"[%02d]", color);
MvWPrintw(helpwin, row++, col,
" r/R toggle reverse on/off");
MvWPrintw(helpwin, row++, col,
- " w/W toggle width between 8/16 colors");
+ " w/W switch width between 4/8 columns");
+ MvWPrintw(helpwin, row++, col,
+ " z/Z zoom out (or in)");
#if USE_WIDEC_SUPPORT
if (wide) {
MvWPrintw(helpwin, row++, col,
bool opt_revs = FALSE;
bool opt_nums = FALSE;
bool opt_wide = FALSE;
+ int opt_zoom = 0;
WINDOW *helpwin;
if (!UseColors) {
return ERR;
}
- numbered = (char *) calloc((size_t) (COLS + 1), sizeof(char));
+ numbered = typeCalloc(char, COLS + 1);
done = ((COLS < 16) || (numbered == 0));
/*
*/
for (col_limit = 1; col_limit * 2 < COLS; col_limit *= 2) ;
+ reloop:
while (!done) {
int shown = 0;
- double colors_max2 = (double) colors_max * (double) colors_max;
+ int zoom_size = (1 << opt_zoom);
+ int colors_max1 = colors_max / zoom_size;
+ double colors_max2 = (double) colors_max1 * (double) colors_max1;
pairs_max = PAIR_NUMBER(A_COLOR) + 1;
if (colors_max2 <= COLOR_PAIRS) {
- int limit = (colors_max - MinColors) * (colors_max - MinColors);
+ int limit = (colors_max1 - MinColors) * (colors_max1 - MinColors);
if (pairs_max > limit)
pairs_max = limit;
}
- if (pairs_max < COLOR_PAIRS)
+ if (pairs_max > COLOR_PAIRS)
pairs_max = COLOR_PAIRS;
+ if (pairs_max < colors_max1)
+ pairs_max = colors_max1;
/* this assumes an 80-column line */
if (opt_wide) {
width = 4;
hello = "Test";
- per_row = (col_limit / ((colors_max > 8) ? 4 : 8));
+ per_row = (col_limit / ((colors_max1 > 8) ? width : 8));
} else {
width = 8;
hello = "Hello";
- per_row = (col_limit / 8);
+ per_row = (col_limit / width);
}
per_row -= MinColors;
move(0, 0);
(void) printw("There are %d color pairs and %d colors",
pairs_max, COLORS);
- if (colors_max != COLORS)
- (void) printw(" (using %d colors)", colors_max);
+ if (colors_max1 != COLORS)
+ (void) printw(" (using %d colors)", colors_max1);
if (MinColors)
(void) addstr(" besides 'default'");
+ if (opt_zoom)
+ (void) printw(" zoom:%d", opt_zoom);
clrtobot();
MvPrintw(top + 1, 0,
opt_bold ? "on" : "off");
/* show color names/numbers across the top */
- for (i = 0; i < per_row; i++)
- show_color_name(top + 2, (i + 1) * width, i + MinColors, opt_wide);
+ for (i = 0; i < per_row; i++) {
+ show_color_name(top + 2,
+ (i + 1) * width,
+ (int) i * zoom_size + MinColors,
+ opt_wide,
+ opt_zoom);
+ }
/* show a grid of colors, with color names/ numbers on the left */
for (i = (NCURSES_PAIRS_T) (base_row * per_row); i < pairs_max; i++) {
if ((i / per_row) > row_limit)
break;
-#define InxToFG(i) (NCURSES_COLOR_T) ((i % (colors_max - MinColors)) + MinColors)
-#define InxToBG(i) (NCURSES_COLOR_T) ((i / (colors_max - MinColors)) + MinColors)
+#define InxToFG(i) (int)((((unsigned long)(i) * (unsigned long)zoom_size) % (unsigned long)(colors_max1 - MinColors)) + (unsigned long)MinColors)
+#define InxToBG(i) (int)((((unsigned long)(i) * (unsigned long)zoom_size) / (unsigned long)(colors_max1 - MinColors)) + (unsigned long)MinColors)
if (row >= 0 && move(row, col) != ERR) {
- NCURSES_COLOR_T fg = InxToFG(i);
- NCURSES_COLOR_T bg = InxToBG(i);
+ NCURSES_COLOR_T fg = (NCURSES_COLOR_T) InxToFG(i);
+ NCURSES_COLOR_T bg = (NCURSES_COLOR_T) InxToBG(i);
init_pair(pair, fg, bg);
attron(COLOR_PAIR(pair));
(void) attrset(A_NORMAL);
if ((i % per_row) == 0 && InxToFG(i) == MinColors) {
- show_color_name(row, 0, InxToBG(i), opt_wide);
+ show_color_name(row, 0,
+ InxToBG(i),
+ opt_wide,
+ opt_zoom);
}
++shown;
} else if (shown) {
case 'W':
set_color_test(opt_wide, TRUE);
break;
+ case 'z':
+ if (opt_zoom <= 0) {
+ beep();
+ } else {
+ --opt_zoom;
+ goto reloop;
+ }
+ break;
+ case 'Z':
+ if ((1 << opt_zoom) >= colors_max) {
+ beep();
+ } else {
+ ++opt_zoom;
+ goto reloop;
+ }
+ break;
case CTRL('p'):
case KEY_UP:
if (base_row <= 0) {
}
#if USE_WIDEC_SUPPORT
+
+#if HAVE_INIT_EXTENDED_COLOR
+#define InitExtendedPair(p,f,g) init_extended_pair((p),(f),(g))
+#define ExtendedColorSet(p) color_set((NCURSES_PAIRS_T) (p), &(p))
+#define EXTENDED_PAIRS_T int
+#else
+#define InitExtendedPair(p,f,g) init_pair((NCURSES_PAIRS_T) (p),(f),(g))
+#define ExtendedColorSet(p) color_set((NCURSES_PAIRS_T) (p), NULL)
+#define EXTENDED_PAIRS_T NCURSES_PAIRS_T
+#endif
+
/* generate a color test pattern */
static int
x_color_test(bool recur GCC_UNUSED)
{
- int i;
+ long i;
int top = 0, width;
int base_row = 0;
int grid_top = top + 3;
bool opt_wide = FALSE;
bool opt_nums = FALSE;
bool opt_xchr = FALSE;
+ int opt_zoom = 0;
wchar_t *buffer = 0;
WINDOW *helpwin;
Cannot("does not support color.");
return ERR;
}
- numbered = (char *) calloc((size_t) (COLS + 1), sizeof(char));
- buffer = (wchar_t *) calloc((size_t) (COLS + 1), sizeof(wchar_t));
+ numbered = typeCalloc(char, COLS + 1);
+ buffer = typeCalloc(wchar_t, COLS + 1);
done = ((COLS < 16) || (numbered == 0) || (buffer == 0));
/*
*/
for (col_limit = 1; col_limit * 2 < COLS; col_limit *= 2) ;
+ reloop:
while (!done) {
int shown = 0;
- double colors_max2 = (double) colors_max * (double) colors_max;
+ int zoom_size = (1 << opt_zoom);
+ int colors_max1 = colors_max / zoom_size;
+ double colors_max2 = (double) colors_max1 * (double) colors_max1;
pairs_max = ((unsigned) (-1)) / 2;
if (colors_max2 <= COLOR_PAIRS) {
- int limit = (colors_max - MinColors) * (colors_max - MinColors);
+ int limit = (colors_max1 - MinColors) * (colors_max1 - MinColors);
if (pairs_max > limit)
pairs_max = limit;
}
if (pairs_max > COLOR_PAIRS)
pairs_max = COLOR_PAIRS;
+ if (pairs_max < colors_max1)
+ pairs_max = colors_max1;
if (opt_wide) {
width = 4;
hello = "Test";
- per_row = (col_limit / ((colors_max > 8) ? 4 : 8));
+ per_row = (col_limit / ((colors_max1 > 8) ? width : 8));
} else {
width = 8;
hello = "Hello";
- per_row = (col_limit / 8);
+ per_row = (col_limit / width);
}
per_row -= MinColors;
move(0, 0);
(void) printw("There are %d color pairs and %d colors",
pairs_max, COLORS);
- if (colors_max != COLORS)
- (void) printw(" (using %d colors)", colors_max);
+ if (colors_max1 != COLORS)
+ (void) printw(" (using %d colors)", colors_max1);
if (MinColors)
(void) addstr(" besides 'default'");
+ if (opt_zoom)
+ (void) printw(" zoom:%d", opt_zoom);
clrtobot();
MvPrintw(top + 1, 0,
opt_bold ? "on" : "off");
/* show color names/numbers across the top */
- for (i = 0; i < per_row; i++)
- show_color_name(top + 2, (i + 1) * width, i + MinColors, opt_wide);
+ for (i = 0; i < per_row; i++) {
+ show_color_name(top + 2,
+ ((int) i + 1) * width,
+ (int) i * zoom_size + MinColors,
+ opt_wide,
+ opt_zoom);
+ }
/* show a grid of colors, with color names/ numbers on the left */
for (i = (base_row * per_row); i < pairs_max; i++) {
- int row = grid_top + (i / per_row) - base_row;
- int col = (i % per_row + 1) * width;
- NCURSES_PAIRS_T pair = (NCURSES_PAIRS_T) i;
+ int row = grid_top + ((int) i / per_row) - base_row;
+ int col = ((int) i % per_row + 1) * width;
+ int pair = (int) i;
if ((i / per_row) > row_limit)
break;
if (row >= 0 && move(row, col) != ERR) {
- init_pair(pair, InxToFG(i), InxToBG(i));
- (void) color_set(pair, NULL);
+ InitExtendedPair(pair, InxToFG(i), InxToBG(i));
+ (void) ExtendedColorSet(pair);
if (opt_acsc)
attr_on(WA_ALTCHARSET, NULL);
if (opt_bold)
if (opt_nums) {
_nc_SPRINTF(numbered,
_nc_SLIMIT((size_t) (COLS + 1) * sizeof(wchar_t))
- "{%02X}", i);
+ "{%02X}", (unsigned) i);
if (opt_xchr) {
make_fullwidth_text(buffer, numbered);
} else {
(void) attr_set(A_NORMAL, 0, NULL);
if ((i % per_row) == 0 && InxToFG(i) == MinColors) {
- show_color_name(row, 0, InxToBG(i), opt_wide);
+ show_color_name(row, 0,
+ InxToBG(i),
+ opt_wide,
+ opt_zoom);
}
++shown;
} else if (shown) {
case 'X':
opt_xchr = TRUE;
break;
+ case 'z':
+ if (opt_zoom <= 0) {
+ beep();
+ } else {
+ --opt_zoom;
+ goto reloop;
+ }
+ break;
+ case 'Z':
+ if ((1 << opt_zoom) >= colors_max) {
+ beep();
+ } else {
+ ++opt_zoom;
+ goto reloop;
+ }
+ break;
case CTRL('p'):
case KEY_UP:
if (base_row <= 0) {
#if HAVE_COPYWIN /* ...and overlay, overwrite */
+static const int overlap_HEAD = 1;
+static const int overlap_FOOT = 6;
+
static WINDOW *
make_overlap(int n)
{
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 ymax = y - (overlap_HEAD + overlap_FOOT);
int high = ymax / 5; /* equal-sized parts for cross */
int xmax = x - 2; /* margin */
int wide = (xmax / 5) & ~1;
if (wide > 8)
wide = 8;
- tmar = (ymax - (5 * high)) / 2 + H_SIZE;
+ tmar = (ymax - (5 * high)) / 2 + overlap_HEAD;
lmar = (xmax - (5 * wide)) / 2;
if (n == 0) {
return result;
}
+static void
+clear_overlap(void)
+{
+ int row;
+
+ for (row = overlap_HEAD; row < LINES - overlap_FOOT; ++row) {
+ move(row, 0);
+ clrtoeol();
+ }
+}
+
+static int
+move_overlap(int shift, WINDOW *win1)
+{
+ int ymax = getmaxy(stdscr) - (overlap_HEAD + overlap_FOOT);
+ int high = ymax / 5; /* equal-sized parts for cross */
+ int tmar;
+ int xmax1 = getmaxx(win1) + 1;
+ int lmar1 = (COLS - (5 * (xmax1) / 3)) / 2;
+ int rc = ERR;
+
+ if (high > 8)
+ high = 8;
+ tmar = (ymax - (5 * high)) / 2 + overlap_HEAD;
+
+ rc = mvwin(win1, tmar, lmar1 + shift);
+ return rc;
+}
+
static void
fillwin(WINDOW *win, char ch)
{
wbkgdset(stdscr, ' ' | A_NORMAL);
}
move(LINES - 1, 0);
- printw("^Q/ESC = terminate test. Up/down/space select tests (row %d",
+ printw("^Q/ESC = terminate test. </> shift. Up/down/space select (row %d",
state + 1);
if (limit[state] > 1)
printw(" test %d:%d", 1 + flavors[state], limit[state]);
{
WINDOW *win1, *win2;
int ch;
+ int shift = 0, last_refresh = -1;
int state, flavor[OVERLAP_FLAVORS];
if ((win1 = make_overlap(0)) == 0
state = overlap_help(state, flavor);
break;
+ case '<':
+ /* FALLTHRU */
+ case '>':
+ /* see below */
+ break;
+
default:
beep();
break;
}
+
+ switch (ch) {
+ case 'a':
+ /* FALLTHRU */
+ case 'b':
+ last_refresh = ch;
+ break;
+ case '<':
+ shift -= 2;
+ /* FALLTHRU */
+ case '>':
+ shift += 1;
+ if (move_overlap(shift, win1) != OK) {
+ flash();
+ shift += (ch == '>') ? -1 : 1;
+ } else if (last_refresh > 0) {
+ clear_overlap();
+ wnoutrefresh(stdscr);
+ if (last_refresh == 'a')
+ overlap_test_0(win1, win2);
+ else
+ overlap_test_0(win2, win1);
+ }
+ break;
+ default:
+ last_refresh = -1;
+ break;
+ }
}
delwin(win2);
const wchar_t WIDE_B = 0xff22;
WINDOW *win1, *win2;
int ch;
+ int shift = 0, last_refresh = -1;
int state, flavor[OVERLAP_FLAVORS];
if ((win1 = make_overlap(0)) == 0
state = overlap_help(state, flavor);
break;
+ case '<':
+ /* FALLTHRU */
+ case '>':
+ /* see below */
+ break;
+
default:
beep();
break;
}
+
+ switch (ch) {
+ case 'a':
+ /* FALLTHRU */
+ case 'b':
+ last_refresh = ch;
+ break;
+ case '<':
+ shift -= 2;
+ /* FALLTHRU */
+ case '>':
+ shift += 1;
+ if (move_overlap(shift, win1) != OK) {
+ flash();
+ shift += (ch == '>') ? -1 : 1;
+ } else if (last_refresh > 0) {
+ clear_overlap();
+ wnoutrefresh(stdscr);
+ if (last_refresh == 'a')
+ overlap_test_0(win1, win2);
+ else
+ overlap_test_0(win2, win1);
+ }
+ break;
+ default:
+ last_refresh = -1;
+ break;
+ }
}
delwin(win2);
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