#include <locale.h>
#include <glib.h>
+#include <glib/gprintf.h>
#include <cairo-ft.h>
#include <hb-ft.h>
/* 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;
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;
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);
- exit (0);
+ 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)
+static gboolean
+parse_features (const char *name G_GNUC_UNUSED,
+ const char *arg,
+ gpointer data G_GNUC_UNUSED,
+ GError **error G_GNUC_UNUSED);
+
+static gboolean
+parse_margin (const char *name G_GNUC_UNUSED,
+ const char *arg,
+ gpointer data G_GNUC_UNUSED,
+ GError **error G_GNUC_UNUSED)
{
- 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}
- };
-
- c = getopt_long (argc, argv, "", long_options, &option_index);
- if (c == -1)
- break;
-
- switch (c)
- {
- 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;
- default:
- break;
- }
- }
- if (optind + 2 != argc)
- usage (stderr, 1);
- font_file = argv[optind++];
- text = argv[optind++];
+ 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:
+ 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;
+ }
}
+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)
{
*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;
else
skip_one_feature (&p);
}
+
+ return TRUE;
}
height = 0;
width = 0;
- x = margin_l;
- y = margin_t;
+ x = opt_margin.l;
+ y = opt_margin.t;
do {
cairo_text_extents_t extents;
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);
}
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)) {
projects / platform / upstream / libHarfBuzzSharp.git / commitdiff