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Adding the ability to colour four elements of nano's interface differently.

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Idea and original patch by Mark Majeres.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4827 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
Benno Schulenberg 2014-05-03 18:24:45 +00:00
parent 7a9f4a456e
commit 1663994e42
9 changed files with 134 additions and 53 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2014-05-03 Benno Schulenberg <bensberg@justemail.net>
* src/*.h, src/*.c: Add the ability to colour four elements of
nano's interface differently: title bar, status bar, key combo,
and function tag. Idea and original patch by Mark Majeres.
2014-04-30 Benno Schulenberg <bensberg@justemail.net>
* src/*, doc/*: Update the years in the copyright notices -- there
were releases in 2010, 2011, and 2013, and there will be in 2014.

38
src/color.c
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@ -38,10 +38,38 @@
void set_colorpairs(void)
{
const syntaxtype *this_syntax = syntaxes;
bool bright = FALSE, defok = FALSE;
short fg, bg;
size_t i;
start_color();
#ifdef HAVE_USE_DEFAULT_COLORS
/* Use the default colors, if available. */
defok = (use_default_colors() != ERR);
#endif
for (i = 0; i < NUMBER_OF_ELEMENTS; i++) {
if (parse_color_names(specified_color_combo[i], &fg, &bg, &bright)) {
if (fg == -1 && !defok)
fg = COLOR_WHITE;
if (bg == -1 && !defok)
bg = COLOR_BLACK;
init_pair(i + 1, fg, bg);
interface_color_pair[i] = COLOR_PAIR(i + 1);
}
else if (i != FUNCTION_TAG)
interface_color_pair[i] = reverse_attr;
if (specified_color_combo[i] != NULL) {
free(specified_color_combo[i]);
specified_color_combo[i] = NULL;
}
}
for (; this_syntax != NULL; this_syntax = this_syntax->next) {
colortype *this_color = this_syntax->color;
int color_pair = 1;
int color_pair = NUMBER_OF_ELEMENTS + 1;
for (; this_color != NULL; this_color = this_color->next) {
const colortype *beforenow = this_syntax->color;
@ -70,15 +98,9 @@ void color_init(void)
if (has_colors()) {
const colortype *tmpcolor;
#ifdef HAVE_USE_DEFAULT_COLORS
bool defok;
#endif
start_color();
#ifdef HAVE_USE_DEFAULT_COLORS
/* Use the default colors, if available. */
defok = (use_default_colors() != ERR);
bool defok = (use_default_colors() != ERR);
#endif
for (tmpcolor = openfile->colorstrings; tmpcolor != NULL;

6
src/global.c
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@ -205,6 +205,12 @@ regmatch_t regmatches[10];
int reverse_attr = A_REVERSE;
/* The curses attribute we use for reverse video. */
#ifndef DISABLE_COLOR
char* specified_color_combo[] = {};
/* The color combinations as specified in the rcfile. */
#endif
int interface_color_pair[] = {};
/* The processed color pairs for the interface elements. */
char *homedir = NULL;
/* The user's home directory, from $HOME or /etc/passwd. */

9
src/nano.c
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@ -2657,6 +2657,15 @@ int main(int argc, char **argv)
mouse_init();
#endif
#ifndef DISABLE_COLOR
set_colorpairs();
#else
interface_color_pair[TITLE_BAR] = reverse_attr;
interface_color_pair[STATUS_BAR] = reverse_attr;
interface_color_pair[KEY_COMBO] = reverse_attr;
interface_color_pair[FUNCTION_TAG] = A_NORMAL;
#endif
#ifdef DEBUG
fprintf(stderr, "Main: open file\n");
#endif

9
src/nano.h
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@ -479,6 +479,15 @@ typedef struct subnfunc {
/* Next item in the list. */
} subnfunc;
/* The elements of the interface that can be colored differently. */
enum
{
TITLE_BAR = 0,
STATUS_BAR,
KEY_COMBO,
FUNCTION_TAG,
NUMBER_OF_ELEMENTS
};
/* Enumeration to be used in flags table. See FLAGBIT and FLAGOFF
* definitions. */

8
src/prompt.c
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@ -853,7 +853,7 @@ void update_statusbar_line(const char *curranswer, size_t index)
index = strnlenpt(curranswer, index);
page_start = get_statusbar_page_start(start_col, start_col + index);
wattron(bottomwin, reverse_attr);
wattron(bottomwin, interface_color_pair[TITLE_BAR]);
blank_statusbar();
@ -866,7 +866,7 @@ void update_statusbar_line(const char *curranswer, size_t index)
waddstr(bottomwin, expanded);
free(expanded);
wattroff(bottomwin, reverse_attr);
wattroff(bottomwin, interface_color_pair[TITLE_BAR]);
statusbar_pww = statusbar_xplustabs();
reset_statusbar_cursor();
wnoutrefresh(bottomwin);
@ -1273,12 +1273,12 @@ int do_yesno_prompt(bool all, const char *msg)
onekey("^C", _("Cancel"), width);
}
wattron(bottomwin, reverse_attr);
wattron(bottomwin, interface_color_pair[TITLE_BAR]);
blank_statusbar();
mvwaddnstr(bottomwin, 0, 0, msg, actual_x(msg, COLS - 1));
wattroff(bottomwin, reverse_attr);
wattroff(bottomwin, interface_color_pair[TITLE_BAR]);
/* Refresh the edit window and the statusbar before getting
* input. */

5
src/proto.h
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@ -131,6 +131,10 @@ extern regmatch_t regmatches[10];
#endif
extern int reverse_attr;
#ifndef DISABLE_COLOR
extern char* specified_color_combo[NUMBER_OF_ELEMENTS];
#endif
extern int interface_color_pair[NUMBER_OF_ELEMENTS];
extern char *homedir;
@ -551,6 +555,7 @@ void parse_magic_syntax(char *ptr);
void parse_include(char *ptr);
short color_to_short(const char *colorname, bool *bright);
void parse_colors(char *ptr, bool icase);
bool parse_color_names(char *combostr, short *fg, short *bg, bool *bright);
void reset_multis(filestruct *fileptr, bool force);
void alloc_multidata_if_needed(filestruct *fileptr);
#endif

93
src/rcfile.c
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@ -99,6 +99,12 @@ static const rcoption rcopts[] = {
{"whitespace", 0},
{"wordbounds", WORD_BOUNDS},
{"softwrap", SOFTWRAP},
#endif
#ifndef DISABLE_COLOR
{"titlecolor", 0},
{"statuscolor", 0},
{"keycolor", 0},
{"functioncolor", 0},
#endif
{NULL, 0}
};
@ -703,7 +709,7 @@ short color_to_short(const char *colorname, bool *bright)
void parse_colors(char *ptr, bool icase)
{
short fg, bg;
bool bright = FALSE, no_fgcolor = FALSE;
bool bright = FALSE;
char *fgstr;
assert(ptr != NULL);
@ -721,36 +727,8 @@ void parse_colors(char *ptr, bool icase)
fgstr = ptr;
ptr = parse_next_word(ptr);
if (strchr(fgstr, ',') != NULL) {
char *bgcolorname;
strtok(fgstr, ",");
bgcolorname = strtok(NULL, ",");
if (bgcolorname == NULL) {
/* If we have a background color without a foreground color,
* parse it properly. */
bgcolorname = fgstr + 1;
no_fgcolor = TRUE;
}
if (strncasecmp(bgcolorname, "bright", 6) == 0) {
rcfile_error(
N_("Background color \"%s\" cannot be bright"),
bgcolorname);
return;
}
bg = color_to_short(bgcolorname, &bright);
} else
bg = -1;
if (!no_fgcolor) {
fg = color_to_short(fgstr, &bright);
/* Don't try to parse screwed-up foreground colors. */
if (fg == -1)
return;
} else
fg = -1;
if (!parse_color_names(fgstr, &fg, &bg, &bright))
return;
if (*ptr == '\0') {
rcfile_error(N_("Missing regex string"));
@ -862,6 +840,44 @@ void parse_colors(char *ptr, bool icase)
}
}
/* Parse the color name, or pair of color names, in combostr. */
bool parse_color_names(char *combostr, short *fg, short *bg, bool *bright)
{
bool no_fgcolor = FALSE;
if (combostr == NULL)
return false;
if (strchr(combostr, ',') != NULL) {
char *bgcolorname;
strtok(combostr, ",");
bgcolorname = strtok(NULL, ",");
if (bgcolorname == NULL) {
/* If we have a background color without a foreground color,
* parse it properly. */
bgcolorname = combostr + 1;
no_fgcolor = TRUE;
}
if (strncasecmp(bgcolorname, "bright", 6) == 0) {
rcfile_error(N_("Background color \"%s\" cannot be bright"), bgcolorname);
return false;
}
*bg = color_to_short(bgcolorname, bright);
} else
*bg = -1;
if (!no_fgcolor) {
*fg = color_to_short(combostr, bright);
/* Don't try to parse screwed-up foreground colors. */
if (*fg == -1)
return false;
} else
*fg = -1;
return true;
}
/* Parse the header-line regex that may influence the choice of syntax. */
void parse_headers(char *ptr)
{
@ -1149,6 +1165,17 @@ void parse_rcfile(FILE *rcstream
break;
}
#ifndef DISABLE_COLOR
if (strcasecmp(rcopts[i].name, "titlecolor") == 0)
specified_color_combo[TITLE_BAR] = option;
else if (strcasecmp(rcopts[i].name, "statuscolor") == 0)
specified_color_combo[STATUS_BAR] = option;
else if (strcasecmp(rcopts[i].name, "keycolor") == 0)
specified_color_combo[KEY_COMBO] = option;
else if (strcasecmp(rcopts[i].name, "functioncolor") == 0)
specified_color_combo[FUNCTION_TAG] = option;
else
#endif
#ifndef DISABLE_OPERATINGDIR
if (strcasecmp(rcopts[i].name, "operatingdir") == 0)
operating_dir = option;
@ -1357,10 +1384,6 @@ void do_rcfile(void)
while (getchar() != '\n')
;
}
#ifndef DISABLE_COLOR
set_colorpairs();
#endif
}
#endif /* !DISABLE_NANORC */

14
src/winio.c
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@ -2104,7 +2104,7 @@ void titlebar(const char *path)
assert(path != NULL || openfile->filename != NULL);
wattron(topwin, reverse_attr);
wattron(topwin, interface_color_pair[TITLE_BAR]);
blank_titlebar();
@ -2235,7 +2235,7 @@ void titlebar(const char *path)
}
}
wattroff(topwin, reverse_attr);
wattroff(topwin, interface_color_pair[TITLE_BAR]);
wnoutrefresh(topwin);
reset_cursor();
@ -2306,12 +2306,12 @@ void statusbar(const char *msg, ...)
start_x = (COLS - foo_len - 4) / 2;
wmove(bottomwin, 0, start_x);
wattron(bottomwin, reverse_attr);
wattron(bottomwin, interface_color_pair[STATUS_BAR]);
waddstr(bottomwin, "[ ");
waddstr(bottomwin, foo);
free(foo);
waddstr(bottomwin, " ]");
wattroff(bottomwin, reverse_attr);
wattroff(bottomwin, interface_color_pair[STATUS_BAR]);
wnoutrefresh(bottomwin);
reset_cursor();
wnoutrefresh(edit);
@ -2411,9 +2411,9 @@ void onekey(const char *keystroke, const char *desc, size_t len)
assert(keystroke != NULL && desc != NULL);
wattron(bottomwin, reverse_attr);
wattron(bottomwin, interface_color_pair[KEY_COMBO]);
waddnstr(bottomwin, keystroke, actual_x(keystroke, len));
wattroff(bottomwin, reverse_attr);
wattroff(bottomwin, interface_color_pair[KEY_COMBO]);
if (len > keystroke_len)
len -= keystroke_len;
@ -2421,8 +2421,10 @@ void onekey(const char *keystroke, const char *desc, size_t len)
len = 0;
if (len > 0) {
wattron(bottomwin, interface_color_pair[FUNCTION_TAG]);
waddch(bottomwin, ' ');
waddnstr(bottomwin, desc, actual_x(desc, len));
wattroff(bottomwin, interface_color_pair[FUNCTION_TAG]);
}
}