Migrated opentype.c and graphemes.c back.
This commit is contained in:
Pietro Gagliardi
parent
008be9b6d8
commit
1cce6dc704
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@ -1,208 +0,0 @@
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// 11 may 2017
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#include "uipriv_unix.h"
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// TODO switch from GINT_TO_POINTER() and so to a fake GUINT_TO_POINTER()?
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struct uiOpenTypeFeatures {
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GHashTable *tags;
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};
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uiOpenTypeFeatures *uiNewOpenTypeFeatures(void)
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{
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uiOpenTypeFeatures *otf;
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otf = uiNew(uiOpenTypeFeatures);
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otf->tags = g_hash_table_new(g_direct_hash, g_direct_equal);
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return otf;
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}
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void uiFreeOpenTypeFeatures(uiOpenTypeFeatures *otf)
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{
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g_hash_table_destroy(otf->tags);
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uiFree(otf);
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}
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static void cloneTags(gpointer key, gpointer value, gpointer data)
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{
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// TODO is there a G_HASH_TABLE()?
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g_hash_table_replace((GHashTable *) data, key, value);
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}
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uiOpenTypeFeatures *uiOpenTypeFeaturesClone(const uiOpenTypeFeatures *otf)
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{
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uiOpenTypeFeatures *out;
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// TODO switch the windows one to use this
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out = uiNewOpenTypeFeatures();
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g_hash_table_foreach(otf->tags, cloneTags, out->tags);
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return out;
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}
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static gpointer mkTag(char a, char b, char c, char d)
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{
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uint32_t tag;
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tag = (((uint32_t) a) & 0xFF) << 24;
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tag |= (((uint32_t) b) & 0xFF) << 16;
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tag |= (((uint32_t) c) & 0xFF) << 8;
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tag |= ((uint32_t) d) & 0xFF;
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return GINT_TO_POINTER(tag);
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}
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void uiOpenTypeFeaturesAdd(uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t value)
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{
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g_hash_table_replace(otf->tags, mkTag(a, b, c, d), GINT_TO_POINTER(value));
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}
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void uiOpenTypeFeaturesRemove(uiOpenTypeFeatures *otf, char a, char b, char c, char d)
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{
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// will just return FALSE if the tag is not in otf->tags (half-documented as such), so we can use it safely
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g_hash_table_remove(otf->tags, mkTag(a, b, c, d));
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}
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// TODO will the const wreck stuff up?
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int uiOpenTypeFeaturesGet(const uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t *value)
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{
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gboolean found;
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gpointer gv;
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found = g_hash_table_lookup_extended(otf->tags,
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mkTag(a, b, c, d),
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NULL, &gv);
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if (!found)
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return 0;
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*value = GPOINTER_TO_INT(gv);
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return 1;
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}
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struct otfForEach {
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const uiOpenTypeFeatures *otf;
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uiOpenTypeFeaturesForEachFunc f;
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void *data;
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uiForEach ret;
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};
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static void foreach(gpointer key, gpointer value, gpointer data)
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{
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struct otfForEach *ofe = (struct otfForEach *) data;
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uint32_t tag;
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uint8_t a, b, c, d;
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// we can't stop early, so just ignore the rest if we have to
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if (ofe->ret == uiForEachStop)
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return;
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tag = GPOINTER_TO_INT(key);
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a = (uint8_t) ((tag >> 24) & 0xFF);
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b = (uint8_t) ((tag >> 16) & 0xFF);
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c = (uint8_t) ((tag >> 8) & 0xFF);
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d = (uint8_t) (tag & 0xFF);
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ofe->ret = (*(ofe->f))(ofe->otf, (char) a, (char) b, (char) c, (char) d, GPOINTER_TO_INT(value), ofe->data);
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}
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void uiOpenTypeFeaturesForEach(const uiOpenTypeFeatures *otf, uiOpenTypeFeaturesForEachFunc f, void *data)
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{
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struct otfForEach ofe;
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memset(&ofe, 0, sizeof (struct otfForEach));
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ofe.otf = otf;
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ofe.f = f;
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ofe.data = data;
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g_hash_table_foreach(otf->tags, foreach, &ofe);
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}
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static gint tagcmp(gconstpointer a, gconstpointer b)
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{
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return GPOINTER_TO_INT(a) - GPOINTER_TO_INT(b);
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}
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static GList *copySortedKeys(GHashTable *tags)
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{
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GList *k, *copy;
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k = g_hash_table_get_keys(tags);
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copy = g_list_copy(k);
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copy = g_list_sort(copy, tagcmp);
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// TODO do we free k? the docs contradict themselves
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// TODO I already forgot, does g_list_sort() copy, or just change the head?
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return copy;
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}
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int uiOpenTypeFeaturesEqual(const uiOpenTypeFeatures *a, const uiOpenTypeFeatures *b)
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{
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GList *ak, *bk;
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GList *ai, *bi;
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guint na, nb;
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guint i;
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int equal = 0;
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if (a == NULL && b == NULL)
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return 1;
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if (a == NULL || b == NULL)
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return 0;
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ak = copySortedKeys(a->tags);
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bk = copySortedKeys(b->tags);
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na = g_list_length(ak);
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nb = g_list_length(bk);
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if (na != nb) {
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equal = 0;
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goto out;
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}
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// TODO use GPOINTER_TO_INT() in these?
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ai = ak;
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bi = bk;
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for (i = 0; i < na; i++) {
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gpointer av, bv;
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// compare keys
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// this is why we needed to sort earlier
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if (ai->data != bi->data) {
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equal = 0;
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goto out;
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}
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// and compare values
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av = g_hash_table_lookup(a->tags, ai->data);
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bv = g_hash_table_lookup(b->tags, bi->data);
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if (av != bv) {
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equal = 0;
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goto out;
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}
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ai = ai->next;
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bi = bi->next;
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}
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// all good
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equal = 1;
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out:
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g_list_free(bk);
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g_list_free(ak);
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return equal;
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}
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// see https://developer.mozilla.org/en/docs/Web/CSS/font-feature-settings
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// TODO make this a g_hash_table_foreach() function (which requires duplicating code)?
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static uiForEach toCSS(const uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t value, void *data)
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{
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// TODO is there a G_STRING()?
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GString *s = (GString *) data;
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// the last trailing comma is removed after foreach is done
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g_string_append_printf(s, "\"%c%c%c%c\" %" PRIu32 ", ",
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a, b, c, d, value);
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return uiForEachContinue;
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}
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gchar *otfToPangoCSSString(const uiOpenTypeFeatures *otf)
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{
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GString *s;
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s = g_string_new("");
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uiOpenTypeFeaturesForEach(otf, toCSS, s);
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if (s->len != 0)
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// and remove the last comma
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g_string_truncate(s, s->len - 2);
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return g_string_free(s, FALSE);
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}
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@ -0,0 +1,4 @@
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// 11 march 2018
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// opentype.c
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extern GString *uiprivOpenTypeFeaturesToPangoCSSFeaturesString(const uiOpenTypeFeatures *otf);
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@ -1,12 +1,13 @@
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// 25 may 2016
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#include "uipriv_unix.h"
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#include "attrstr.h"
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int graphemesTakesUTF16(void)
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int uiprivGraphemesTakesUTF16(void)
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{
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return 0;
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}
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struct graphemes *graphemes(void *s, size_t len)
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struct graphemes *uiprivNewGraphemes(void *s, size_t len)
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{
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struct graphemes *g;
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char *text = (char *) s;
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@ -0,0 +1,26 @@
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// 11 may 2017
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#include "uipriv_unix.h"
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#include "attrstr.h"
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// see https://developer.mozilla.org/en/docs/Web/CSS/font-feature-settings
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static uiForEach toCSS(const uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t value, void *data)
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{
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GString *s = (GString *) data;
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// the last trailing comma is removed after foreach is done
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g_string_append_printf(s, "\"%c%c%c%c\" %" PRIu32 ", ",
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a, b, c, d, value);
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return uiForEachContinue;
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}
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GString *uiprivOpenTypeFeaturesToPangoCSSFeaturesString(const uiOpenTypeFeatures *otf)
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{
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GString *s;
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s = g_string_new("");
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uiOpenTypeFeaturesForEach(otf, toCSS, s);
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if (s->len != 0)
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// and remove the last comma
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g_string_truncate(s, s->len - 2);
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return s;
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}
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