bump crengine: more granular font weights (#1363)

Includes:
- MathML: a few minor fixes
- (Upstream) lvtext: fix possible index out of range
- Fonts: RegisterExternalFont() should take a documentId
- Fonts: fix: letter-spacing should not be applied on diacritic
- (Upstream) Fonts: more granular synthetic weights
- Fonts: synthesized weights: tweak some comments
- Fonts: keep hinting with synthetic weight
- Fonts: fix synthesized weight inconsitencies
- Fonts: fix getFontFileNameAndFaceIndex()
- Fonts: adds LVFontMan::RegularizeRegisteredFontsWeights()
- Fonts: handle synth_weight tweaks in glyph/glyphinfo slots
- (Upstream) Fonts: fix some compiler warnings
- Fix hyphenation on Armenian and Georgian text

cre.cpp

@@ -1371,6 +1371,19 @@ static int getFontFaceFilenameAndFaceIndex(lua_State *L) {
 	return 0;
 }
 
+static int getFontFaceAvailableWeights(lua_State *L) {
+	const char *facename = luaL_checkstring(L, 1);
+
+	LVArray<int> weights;
+	fontMan->GetAvailableFontWeights(weights, lString8(facename));
+	lua_createtable(L, weights.length(), 0);
+	for ( int i=0; i<weights.length(); i++ ) {
+		lua_pushinteger(L, weights[i]);
+		lua_rawseti(L, -2, i+1);
+	}
+	return 1;
+}
+
 static int setViewMode(lua_State *L) {
 	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 	LVDocViewMode view_mode = (LVDocViewMode)luaL_checkint(L, 2);
@@ -1697,14 +1710,6 @@ static int setEmbeddedFonts(lua_State *L) {
 	return 0;
 }
 
-static int toggleFontBolder(lua_State *L) {
-	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
-
-	doc->text_view->doCommand(DCMD_TOGGLE_BOLD);
-
-	return 0;
-}
-
 static int cursorRight(lua_State *L) {
 	//CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 
@@ -3304,6 +3309,15 @@ static int registerFont(lua_State *L) {
 	return 0;
 }
 
+static int regularizeRegisteredFontsWeights(lua_State *L) {
+	bool print_updates = false;
+	if (lua_isboolean(L, 1)) {
+		print_updates = lua_toboolean(L, 1);
+	}
+	fontMan->RegularizeRegisteredFontsWeights(print_updates);
+	return 0;
+}
+
 // ported from Android UI kpvcrlib/crengine/android/jni/docview.cpp
 
 static int findText(lua_State *L) {
@@ -3488,10 +3502,12 @@ static const struct luaL_Reg cre_func[] = {
     {"newDocView", newDocView},
     {"getFontFaces", getFontFaces},
     {"getFontFaceFilenameAndFaceIndex", getFontFaceFilenameAndFaceIndex},
+    {"getFontFaceAvailableWeights", getFontFaceAvailableWeights},
     {"getGammaLevel", getGammaLevel},
     {"getGammaIndex", getGammaIndex},
     {"setGammaIndex", setGammaIndex},
     {"registerFont", registerFont},
+    {"regularizeRegisteredFontsWeights", regularizeRegisteredFontsWeights},
     {"getHyphDictList", getHyphDictList},
     {"getSelectedHyphDict", getSelectedHyphDict},
     {"setHyphDictionary", setHyphDictionary},
@@ -3573,7 +3589,6 @@ static const struct luaL_Reg credocument_meth[] = {
     {"gotoPos", gotoPos},
     {"gotoXPointer", gotoXPointer},
     {"zoomFont", zoomFont},
-    {"toggleFontBolder", toggleFontBolder},
     //{"cursorLeft", cursorLeft},
     //{"cursorRight", cursorRight},
     {"drawCurrentPage", drawCurrentPage},