[util] Port hb-view to GOption
This commit is contained in:
Behdad Esfahbod
parent
511a136f0c
commit
8df90c8118
257
util/hb-view.cc
257
util/hb-view.cc
|
|
@ -38,6 +38,7 @@
|
|||
#include <locale.h>
|
||||
|
||||
#include <glib.h>
|
||||
#include <glib/gprintf.h>
|
||||
|
||||
#include <cairo-ft.h>
|
||||
#include <hb-ft.h>
|
||||
|
|
@ -45,13 +46,13 @@
|
|||
|
||||
|
||||
/* Controlled by cmd-line options */
|
||||
static int margin_t = 10;
|
||||
static int margin_b = 10;
|
||||
static int margin_l = 10;
|
||||
static int margin_r = 10;
|
||||
static int line_space = 0;
|
||||
struct margin_t {
|
||||
double t, r, b, l;
|
||||
};
|
||||
static margin_t opt_margin = {18, 18, 18, 18};
|
||||
static double line_space = 0;
|
||||
static int face_index = 0;
|
||||
static double font_size = 18;
|
||||
static double font_size = 36;
|
||||
static const char *fore = "#000000";
|
||||
static const char *back = "#ffffff";
|
||||
static const char *text = NULL;
|
||||
|
|
@ -60,11 +61,12 @@ static const char *out_file = "/dev/stdout";
|
|||
static const char *direction = NULL;
|
||||
static const char *script = NULL;
|
||||
static const char *language = NULL;
|
||||
static hb_feature_t *features = NULL;
|
||||
static unsigned int num_features;
|
||||
static hb_bool_t annotate = FALSE;
|
||||
static hb_bool_t debug = FALSE;
|
||||
|
||||
static hb_feature_t *features = NULL;
|
||||
static unsigned int num_features;
|
||||
|
||||
/* Ugh, global vars. Ugly, but does the job */
|
||||
static int width = 0;
|
||||
static int height = 0;
|
||||
|
|
@ -81,109 +83,145 @@ usage (FILE *f, int status)
|
|||
exit (status);
|
||||
}
|
||||
|
||||
G_GNUC_NORETURN static void
|
||||
version (void)
|
||||
static G_GNUC_NORETURN gboolean
|
||||
show_version (const char *name G_GNUC_UNUSED,
|
||||
const char *arg G_GNUC_UNUSED,
|
||||
gpointer data G_GNUC_UNUSED,
|
||||
GError **error G_GNUC_UNUSED)
|
||||
{
|
||||
printf ("hb-view (harfbuzz) %s\n", HB_VERSION_STRING);
|
||||
g_printf("%s (%s) %s\n", g_get_prgname (), PACKAGE_NAME, PACKAGE_VERSION);
|
||||
|
||||
if (strcmp (HB_VERSION_STRING, hb_version_string ()))
|
||||
g_printf("Linked HarfBuzz library has a different version: %s\n", hb_version_string ());
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
||||
static void parse_features (char *s);
|
||||
|
||||
static void
|
||||
parse_opts (int argc, char **argv)
|
||||
{
|
||||
argv[0] = (char *) "hb-view";
|
||||
while (1)
|
||||
{
|
||||
int option_index = 0, c;
|
||||
static const struct option long_options[] = {
|
||||
{"annotate", 0, &annotate, TRUE},
|
||||
{"background", 1, 0, 'B'},
|
||||
{"debug", 0, &debug, TRUE},
|
||||
{"direction", 1, 0, 'd'},
|
||||
{"features", 1, 0, 'f'},
|
||||
{"font-size", 1, 0, 's'},
|
||||
{"face-index", 1, 0, 'i'},
|
||||
{"foreground", 1, 0, 'F'},
|
||||
{"help", 0, 0, 'h'},
|
||||
{"language", 1, 0, 'L'},
|
||||
{"line-space", 1, 0, 'l'},
|
||||
{"margin", 1, 0, 'm'},
|
||||
{"output", 1, 0, 'o'},
|
||||
{"script", 1, 0, 'S'},
|
||||
{"version", 0, 0, 'v'},
|
||||
{0, 0, 0, 0}
|
||||
};
|
||||
static gboolean
|
||||
parse_features (const char *name G_GNUC_UNUSED,
|
||||
const char *arg,
|
||||
gpointer data G_GNUC_UNUSED,
|
||||
GError **error G_GNUC_UNUSED);
|
||||
|
||||
c = getopt_long (argc, argv, "", long_options, &option_index);
|
||||
if (c == -1)
|
||||
break;
|
||||
|
||||
switch (c)
|
||||
static gboolean
|
||||
parse_margin (const char *name G_GNUC_UNUSED,
|
||||
const char *arg,
|
||||
gpointer data G_GNUC_UNUSED,
|
||||
GError **error G_GNUC_UNUSED)
|
||||
{
|
||||
case 0:
|
||||
break;
|
||||
case 'h':
|
||||
usage (stdout, 0);
|
||||
break;
|
||||
case 'v':
|
||||
version ();
|
||||
break;
|
||||
case 'i':
|
||||
face_index = atoi (optarg);
|
||||
break;
|
||||
case 'l':
|
||||
line_space = atoi (optarg);
|
||||
break;
|
||||
case 'm':
|
||||
switch (sscanf (optarg, "%d %d %d %d", &margin_t, &margin_r, &margin_b, &margin_l)) {
|
||||
default: break;
|
||||
case 1: margin_r = margin_t;
|
||||
case 2: margin_b = margin_t;
|
||||
case 3: margin_l = margin_r;
|
||||
}
|
||||
break;
|
||||
case 's':
|
||||
font_size = strtod (optarg, NULL);
|
||||
break;
|
||||
case 'f':
|
||||
parse_features (optarg);
|
||||
break;
|
||||
case 'F':
|
||||
fore = optarg;
|
||||
break;
|
||||
case 'B':
|
||||
back = optarg;
|
||||
break;
|
||||
case 't':
|
||||
text = optarg;
|
||||
break;
|
||||
case 'd':
|
||||
direction = optarg;
|
||||
break;
|
||||
case 'S':
|
||||
script = optarg;
|
||||
break;
|
||||
case 'L':
|
||||
language = optarg;
|
||||
break;
|
||||
case 'o':
|
||||
out_file = optarg;
|
||||
break;
|
||||
case '?':
|
||||
usage (stdout, 1);
|
||||
break;
|
||||
switch (sscanf (arg, "%f %f %f %f", &opt_margin.t, &opt_margin.r, &opt_margin.b, &opt_margin.l)) {
|
||||
case 1: opt_margin.r = opt_margin.t;
|
||||
case 2: opt_margin.b = opt_margin.t;
|
||||
case 3: opt_margin.l = opt_margin.r;
|
||||
case 4: return TRUE;
|
||||
default:
|
||||
break;
|
||||
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
|
||||
"%s argument should be one to four space-separated numbers",
|
||||
name);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
if (optind + 2 != argc)
|
||||
usage (stderr, 1);
|
||||
font_file = argv[optind++];
|
||||
text = argv[optind++];
|
||||
|
||||
|
||||
void
|
||||
fail (const char *format, ...)
|
||||
{
|
||||
const char *msg;
|
||||
|
||||
va_list vap;
|
||||
va_start (vap, format);
|
||||
msg = g_strdup_vprintf (format, vap);
|
||||
g_printerr ("%s: %s\n", g_get_prgname (), msg);
|
||||
|
||||
exit (1);
|
||||
}
|
||||
|
||||
static gchar *
|
||||
shapers_to_string (void)
|
||||
{
|
||||
GString *shapers = g_string_new (NULL);
|
||||
const char **shaper_list = hb_shape_list_shapers ();
|
||||
|
||||
for (; *shaper_list; shaper_list++) {
|
||||
g_string_append (shapers, *shaper_list);
|
||||
g_string_append_c (shapers, ',');
|
||||
}
|
||||
g_string_truncate (shapers, MAX (0, (gint)shapers->len - 1));
|
||||
|
||||
return g_string_free(shapers, FALSE);
|
||||
}
|
||||
|
||||
void
|
||||
parse_options (int argc, char *argv[])
|
||||
{
|
||||
gchar *shapers_options = shapers_to_string ();
|
||||
GOptionEntry entries[] =
|
||||
{
|
||||
{"version", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, (gpointer) &show_version,
|
||||
"Show version numbers", NULL},
|
||||
{"debug", 0, 0, G_OPTION_ARG_NONE, &debug,
|
||||
"Free all resources before exit", NULL},
|
||||
{"output", 0, 0, G_OPTION_ARG_STRING, &out_file,
|
||||
"Set output file name", "filename"},
|
||||
|
||||
{"annotate", 0, 0, G_OPTION_ARG_NONE, &annotate,
|
||||
"Annotate output rendering", NULL},
|
||||
{"background", 0, 0, G_OPTION_ARG_STRING, &back,
|
||||
"Set background color", "red/#rrggbb/#rrggbbaa"},
|
||||
{"foreground", 0, 0, G_OPTION_ARG_STRING, &fore,
|
||||
"Set foreground color", "red/#rrggbb/#rrggbbaa"},
|
||||
{"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &font_size,
|
||||
"Set space between lines (default: 0)", "units"},
|
||||
{"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin,
|
||||
"Margin around output", "one to four numbers"},
|
||||
|
||||
{"direction", 0, 0, G_OPTION_ARG_STRING, &direction,
|
||||
"Set text direction (default: auto)", "ltr/rtl/ttb/btt"},
|
||||
{"language", 0, 0, G_OPTION_ARG_STRING, &language,
|
||||
"Set text language (default: $LANG)", "langstr"},
|
||||
{"script", 0, 0, G_OPTION_ARG_STRING, &script,
|
||||
"Set text script (default: auto)", "ISO-15924 tag"},
|
||||
{"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features,
|
||||
"Font features to apply to text", "TODO"},
|
||||
|
||||
{"face-index", 0, 0, G_OPTION_ARG_INT, &face_index,
|
||||
"Face index (default: 0)", "index"},
|
||||
{"font-size", 0, 0, G_OPTION_ARG_DOUBLE, &font_size,
|
||||
"Font size", "size"},
|
||||
|
||||
{NULL}
|
||||
};
|
||||
GError *error = NULL;
|
||||
GError *parse_error = NULL;
|
||||
GOptionContext *context;
|
||||
size_t len;
|
||||
|
||||
context = g_option_context_new ("- FONT-FILE TEXT");
|
||||
|
||||
g_option_context_add_main_entries (context, entries, NULL);
|
||||
|
||||
if (!g_option_context_parse (context, &argc, &argv, &parse_error))
|
||||
{
|
||||
if (parse_error != NULL)
|
||||
fail ("%s", parse_error->message);
|
||||
else
|
||||
fail ("Option parse error");
|
||||
exit(1);
|
||||
}
|
||||
g_option_context_free(context);
|
||||
g_free(shapers_options);
|
||||
|
||||
if (argc != 3) {
|
||||
g_printerr ("Usage: %s [OPTION...] FONT-FILE TEXT\n", g_get_prgname ());
|
||||
exit (1);
|
||||
}
|
||||
|
||||
font_file = argv[1];
|
||||
text = g_locale_to_utf8 (argv[2], -1, NULL, NULL, &error);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
parse_space (char **pp)
|
||||
|
|
@ -309,15 +347,20 @@ skip_one_feature (char **pp)
|
|||
*pp = *pp + strlen (*pp);
|
||||
}
|
||||
|
||||
static void parse_features (char *s)
|
||||
static gboolean
|
||||
parse_features (const char *name G_GNUC_UNUSED,
|
||||
const char *arg,
|
||||
gpointer data G_GNUC_UNUSED,
|
||||
GError **error G_GNUC_UNUSED)
|
||||
{
|
||||
char *s = (char *) arg;
|
||||
char *p;
|
||||
|
||||
num_features = 0;
|
||||
features = NULL;
|
||||
|
||||
if (!*s)
|
||||
return;
|
||||
return TRUE;
|
||||
|
||||
/* count the features first, so we can allocate memory */
|
||||
p = s;
|
||||
|
|
@ -339,6 +382,8 @@ static void parse_features (char *s)
|
|||
else
|
||||
skip_one_feature (&p);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -465,8 +510,8 @@ draw (void)
|
|||
height = 0;
|
||||
width = 0;
|
||||
|
||||
x = margin_l;
|
||||
y = margin_t;
|
||||
x = opt_margin.l;
|
||||
y = opt_margin.t;
|
||||
|
||||
do {
|
||||
cairo_text_extents_t extents;
|
||||
|
|
@ -513,8 +558,8 @@ draw (void)
|
|||
p = end + 1;
|
||||
} while (*end);
|
||||
|
||||
height = y + margin_b;
|
||||
width += margin_l + margin_r;
|
||||
height = y + opt_margin.b;
|
||||
width += opt_margin.l + opt_margin.r;
|
||||
|
||||
cairo_destroy (cr);
|
||||
}
|
||||
|
|
@ -530,7 +575,7 @@ main (int argc, char **argv)
|
|||
|
||||
setlocale (LC_ALL, "");
|
||||
|
||||
parse_opts (argc, argv);
|
||||
parse_options (argc, argv);
|
||||
|
||||
FT_Init_FreeType (&ft_library);
|
||||
if (FT_New_Face (ft_library, font_file, face_index, &ft_face)) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue