fix: glyph range size (#196)

* [API] Fix glyph array size

* [API] Fix macro multiple lines

* [API] Fix variable to use in ImFontAtlas

* [API] Fix counting of size in ImFontAtlas

Author: kusaanko

imgui-binding/src/main/java/imgui/ImFontAtlas.java

@@ -387,7 +387,10 @@ private ByteBuffer createRgba32Pixels(final int size) {
 
     /*JNI
         #define RETURN_GLYPH_2_SHORT(glyphs) \
-            int size = sizeof(glyphs); \
+            const ImWchar* ranges = glyphs; \
+            int size = 0; \
+            for (; ranges[0]; ranges += 2) \
+                size += 2; \
             jshortArray jShorts = env->NewShortArray(size); \
             env->SetShortArrayRegion(jShorts, 0, size, (jshort*)glyphs); \
             return jShorts;