Version 0 of TabLabel, Tab, and TabBar components

sky/sdk/lib/rendering/box.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:math' as math;
 import 'dart:sky' as sky;
 
 import 'package:vector_math/vector_math.dart';
 
 import '../base/debug.dart';
@@ skipping 145 matching lines @@
                               maxHeight: math.max(maxHeight, newMinHeight));
   }
 
   BoxConstraints applyMaxHeight(double newMaxHeight) {
     return new BoxConstraints(minWidth: minWidth,
                               maxWidth: maxWidth,
                               minHeight: minHeight,
                               maxHeight: math.min(maxHeight, newMaxHeight));
   }
 
+  BoxConstraints widthConstraints() => new BoxConstraints(minWidth: minWidth, maxWidth: maxWidth);
+
+  BoxConstraints heightConstraints() => new BoxConstraints(minHeight: minHeight, maxHeight: maxHeight);
+
   final double minWidth;
   final double maxWidth;
   final double minHeight;
   final double maxHeight;
 
   double constrainWidth(double width) {
     return clamp(min: minWidth, max: maxWidth, value: width);
   }
 
   double constrainHeight(double height) {
@@ skipping 929 matching lines @@
 
   void defaultPaint(RenderObjectDisplayList canvas) {
     RenderBox child = firstChild;
     while (child != null) {
       assert(child.parentData is ParentDataType);
       canvas.paintChild(child, child.parentData.position);
       child = child.parentData.nextSibling;
     }
   }
 }