Added vertical glyph forms. Next up is the rest of the various font features.

common/attrlist.c

@@ -302,6 +302,8 @@ static int specsIdentical(struct attr *attr, uiAttributeSpec *spec)
 			attr->spec.G == spec->G &&
 			attr->spec.B == spec->B &&
 			attr->spec.A == spec->A;
+	case uiAttributeVerticalForms:
+		return 1;
 	// TODO
 	}
 	// handles the rest

darwin/attrstr.m

@@ -122,6 +122,9 @@ static int processAttribute(uiAttributedString *s, uiAttributeSpec *spec, size_t
 		[p->backgroundBlocks addObject:block];
 		Block_release(block);
 		break;
+	case uiAttributeVerticalForms:
+		CFAttributedStringSetAttribute(p->mas, range, kCTVerticalFormsAttributeName, kCFBooleanTrue);
+		break;
 	// TODO
 	}
 	return 0;

examples/drawtext/attributes.c

@@ -91,6 +91,16 @@ static void setupAttributedString(void)
 
 	uiAttributedStringAppendUnattributed(attrstr, ", ");
 
+	next = "vertical glyph forms";
+	start = uiAttributedStringLen(attrstr);
+	end = start + strlen(next);
+	uiAttributedStringAppendUnattributed(attrstr, next);
+	spec.Type = uiAttributeVerticalForms;
+	uiAttributedStringSetAttribute(attrstr, &spec, start, end);
+
+	uiAttributedStringAppendUnattributed(attrstr, " (which you can draw rotated for proper vertical text)");
+	uiAttributedStringAppendUnattributed(attrstr, ", ");
+
 	next = "multiple TODO";
 }
 

ui_attrstr.h

@@ -3,12 +3,13 @@ typedef struct uiAttributeSpec uiAttributeSpec;
 
 _UI_ENUM(uiAttribute) {
 	uiAttributeFamily,
-	uiAttributeSize,			// use Double
+	uiAttributeSize,				// use Double
 	uiAttributeWeight,
 	uiAttributeItalic,
 	uiAttributeStretch,
-	uiAttributeColor,		// use R, G, B, A
+	uiAttributeColor,			// use R, G, B, A
-	uiAttributeBackground,	// use R, G, B, A
+	uiAttributeBackground,		// use R, G, B, A
+	uiAttributeVerticalForms,		// no parameter
 	// TODO
 	// TODO uiAttributeSystem,
 	// TODO uiAttributeCustom,