Add support for text styles.

sky/sdk/lib/framework/widgets/wrappers.dart

 
 import 'package:vector_math/vector_math.dart';
 
 import '../rendering/block.dart';
 import '../rendering/box.dart';
 import '../rendering/flex.dart';
 import '../rendering/object.dart';
 import '../rendering/paragraph.dart';
 import '../rendering/stack.dart';
 import 'ui_node.dart';
@@ skipping 302 matching lines @@
 
 }
 
 class FlexExpandingChild extends ParentDataNode {
   FlexExpandingChild(UINode content, { int flex: 1, Object key })
     : super(content, new FlexBoxParentData()..flex = flex, key: key);
 }
 
 class Paragraph extends RenderObjectWrapper {
 
-  Paragraph({ Object key, this.text }) : super(key: key);
+  Paragraph({ Object key, this.text, this.style }) : super(key: key);
 
   RenderParagraph get root { RenderParagraph result = super.root; return result; }
-  RenderParagraph createNode() => new RenderParagraph(text: text);
+  RenderParagraph createNode() => new RenderParagraph(text: text, style: style);
 
   final String text;
+  final TextStyle style;
 
   void syncRenderObject(UINode old) {
     super.syncRenderObject(old);
     root.text = text;
+    root.style = style;
   }
 
   void insert(RenderObjectWrapper child, dynamic slot) {
     assert(false);
     // Paragraph does not support having children currently
   }
 
 }
 
 class Text extends Component {
-  Text(this.data) : super(key: '*text*');
+  Text(this.data, { TextStyle this.style }) : super(key: '*text*');
   final String data;
+  final TextStyle style;
   bool get interchangeable => true;
-  UINode build() => new Paragraph(text: data);
+  UINode build() => new Paragraph(text: data, style: style);
 }
 
 class Image extends RenderObjectWrapper {
 
   Image({
     Object key,
     this.src,
     this.size
   }) : super(key: key);
 
   RenderImage get root { RenderImage result = super.root; return result; }
   RenderImage createNode() => new RenderImage(this.src, this.size);
 
   final String src;
   final Size size;
 
   void syncRenderObject(UINode old) {
     super.syncRenderObject(old);
     root.src = src;
     root.requestedSize = size;
   }
 
   void insert(RenderObjectWrapper child, dynamic slot) {
     assert(false);
     // Image does not support having children currently
   }
 
 }