Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
Thomas E. Dickey (beginning revision 1.27 in 1996).
-$Id: ncurses.c,v 1.373 2012/07/21 17:40:21 tom Exp $
+$Id: ncurses.c,v 1.377 2012/09/08 23:58:58 tom Exp $
***************************************************************************/
#endif
#endif /* SLK_INIT */
-/* ISO 6429: codes 0x80 to 0x9f may be control characters that cause the
+static void
+show_256_chars(int repeat, attr_t attr, short pair)
+{
+ unsigned first = 0;
+ unsigned last = 255;
+ unsigned code;
+ int count;
+
+ erase();
+ attron(A_BOLD);
+ MvPrintw(0, 20, "Display of Character Codes %#0x to %#0x",
+ first, last);
+ attroff(A_BOLD);
+ refresh();
+
+ for (code = first; code <= last; ++code) {
+ int row = (int) (2 + (code / 16));
+ int col = (int) (5 * (code % 16));
+ mvaddch(row, col, colored_chtype(code, attr, pair));
+ for (count = 1; count < repeat; ++count) {
+ addch(colored_chtype(code, attr, pair));
+ }
+ }
+
+}
+
+/*
+ * Show a slice of 32 characters, allowing those to be repeated up to the
+ * screen's width.
+ *
+ * ISO 6429: codes 0x80 to 0x9f may be control characters that cause the
* terminal to perform functions. The remaining codes can be graphic.
*/
static void
-show_upper_chars(unsigned first, int repeat, attr_t attr, short pair)
+show_upper_chars(int base, int pagesize, int repeat, attr_t attr, short pair)
{
- bool C1 = (first == 128);
unsigned code;
- unsigned last = first + 31;
+ unsigned first = (unsigned) base;
+ unsigned last = first + (unsigned) pagesize - 2;
+ bool C1 = (first == 128);
int reply;
erase();
for (code = first; code <= last; code++) {
int count = repeat;
- int row = 2 + ((int) (code - first) % 16);
- int col = ((int) (code - first) / 16) * COLS / 2;
+ int row = 2 + ((int) (code - first) % (pagesize / 2));
+ int col = ((int) (code - first) / (pagesize / 2)) * COLS / 2;
char tmp[80];
sprintf(tmp, "%3u (0x%x)", code, code);
MvPrintw(row, col, "%*s: ", COLS / 4, tmp);
acs_display(void)
{
int c = 'a';
+ int pagesize = 32;
char *term = getenv("TERM");
const char *pch_kludge = ((term != 0 && strstr(term, "linux"))
? "p=PC, "
else
beep();
break;
+ case 'w':
+ if (pagesize == 32) {
+ pagesize = 256;
+ } else {
+ pagesize = 32;
+ }
+ break;
case 'x':
ToggleAcs(last_show_acs, show_box_chars);
break;
}
break;
}
- if (last_show_acs != 0)
+ if (pagesize != 32) {
+ show_256_chars(repeat, attr, pair);
+ } else if (last_show_acs != 0) {
last_show_acs(repeat, attr, pair);
- else
- show_upper_chars((unsigned) (digit * 32 + 128), repeat, attr, pair);
+ } else {
+ show_upper_chars(digit * pagesize + 128, pagesize, repeat, attr, pair);
+ }
MvPrintw(LINES - 3, 0,
"Note: ANSI terminals may not display C1 characters.");
MvPrintw(LINES - 2, 0,
- "Select: a=ACS, x=box, %s0=C1, 1-3,+/- non-ASCII, </> repeat, ESC=quit",
+ "Select: a=ACS, w=all x=box, %s0=C1, 1-3,+/- non-ASCII, </> repeat, ESC=quit",
pch_kludge);
if (use_colors) {
MvPrintw(LINES - 1, 0,
return dst;
}
+/*
+ * Header/legend take up no more than 8 lines, leaving 16 lines on a 24-line
+ * display. If there are no repeats, we could normally display 16 lines of 64
+ * characters (1024 total). However, taking repeats and double-width cells
+ * into account, use 256 characters for the page.
+ */
+static void
+show_paged_widechars(int base,
+ int pagesize,
+ int repeat,
+ int space,
+ attr_t attr,
+ short pair)
+{
+ int first = base * pagesize;
+ int last = first + pagesize - 1;
+ int per_line = 16;
+ cchar_t temp;
+ wchar_t code;
+ wchar_t codes[10];
+
+ erase();
+ attron(A_BOLD);
+ MvPrintw(0, 20, "Display of Character Codes %#x to %#x", first, last);
+ attroff(A_BOLD);
+
+ for (code = first; (int) code <= last; code++) {
+ int row = (2 + ((int) code - first) / per_line);
+ int col = 5 * ((int) code % per_line);
+ int count;
+
+ memset(&codes, 0, sizeof(codes));
+ codes[0] = code;
+ setcchar(&temp, codes, attr, pair, 0);
+ move(row, col);
+ if (wcwidth(code) == 0 && code != 0) {
+ addch((chtype) space |
+ (A_REVERSE ^ attr) |
+ (attr_t) COLOR_PAIR(pair));
+ }
+ add_wch(&temp);
+ for (count = 1; count < repeat; ++count) {
+ add_wch(&temp);
+ }
+ }
+}
+
static void
show_upper_widechars(int first, int repeat, int space, attr_t attr, short pair)
{
int count = repeat;
int y, x;
- memset(&codes, 0, sizeof(codes));
- codes[0] = code;
sprintf(tmp, "%3ld (0x%lx)", (long) code, (long) code);
MvPrintw(row, col, "%*s: ", COLS / 4, tmp);
+
+ memset(&codes, 0, sizeof(codes));
+ codes[0] = code;
setcchar(&temp, codes, attr, pair, 0);
+
do {
/*
* Give non-spacing characters something to combine with. If we
(attr_t) COLOR_PAIR(pair));
}
/*
- * This could use add_wch(), but is done for comparison with the
- * normal 'f' test (and to make a test-case for echo_wchar()).
- * The screen will flicker because the erase() at the top of the
- * function is met by the builtin refresh() in echo_wchar().
+ * This uses echo_wchar(), for comparison with the normal 'f'
+ * test (and to make a test-case for echo_wchar()). The screen
+ * may flicker because the erase() at the top of the function
+ * is met by the builtin refresh() in echo_wchar().
*/
echo_wchar(&temp);
/*
int digit = 0;
int repeat = 1;
int space = ' ';
+ int pagesize = 32;
chtype attr = A_NORMAL;
int fg = COLOR_BLACK;
int bg = COLOR_BLACK;
ToggleAcs(last_show_wacs, show_wacs_chars_thick);
break;
#endif
+ case 'w':
+ if (pagesize == 32) {
+ pagesize = 256;
+ } else {
+ pagesize = 32;
+ }
+ break;
case 'x':
ToggleAcs(last_show_wacs, show_wbox_chars);
break;
}
break;
}
- if (last_show_wacs != 0)
+ if (pagesize != 32) {
+ show_paged_widechars(digit, pagesize, repeat, space, attr, pair);
+ } else if (last_show_wacs != 0) {
last_show_wacs(repeat, attr, pair);
- else
+ } else {
show_upper_widechars(digit * 32 + 128, repeat, space, attr, pair);
+ }
- MvPrintw(LINES - 3, 0,
- "Select: a/d/t WACS, x box, u UTF-8, 0-9,+/- non-ASCII, </> repeat, ESC=quit");
+ MvPrintw(LINES - 4, 0,
+ "Select: a/d/t WACS, w=all x=box, u UTF-8, ^L repaint");
+ MvPrintw(LINES - 3, 2,
+ "0-9,+/- non-ASCII, </> repeat, _ space, ESC=quit");
if (use_colors) {
- MvPrintw(LINES - 2, 0,
+ MvPrintw(LINES - 2, 2,
"v/V, f/F, b/B cycle through video attributes (%s) and color %d/%d.",
attrs_to_cycle[at_code].name,
fg, bg);
} else {
- MvPrintw(LINES - 2, 0,
+ MvPrintw(LINES - 2, 2,
"v/V cycles through video attributes (%s).",
attrs_to_cycle[at_code].name);
}
projects / ncurses.git / blobdiff