Remove RenderSizedBox.

sky/sdk/lib/widgets/basic.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 125 matching lines @@
 
   RenderPositionedBox get root { RenderPositionedBox result = super.root; return result; }
 
   RenderPositionedBox createNode() => new RenderPositionedBox();
 
 }
 
 class SizedBox extends OneChildRenderObjectWrapper {
 
   SizedBox({
-    double width: double.INFINITY,
-    double height: double.INFINITY,
+    this.width,
+    this.height,
     UINode child,
     Object key
-  }) : desiredSize = new Size(width, height), super(child: child, key: key);
+  }) : super(child: child, key: key);
 
-  RenderSizedBox get root { RenderSizedBox result = super.root; return result; }
-  final Size desiredSize;
+  RenderConstrainedBox get root { RenderConstrainedBox result = super.root; return result; }
 
-  RenderSizedBox createNode() => new RenderSizedBox(desiredSize: desiredSize);
+  final double width;
+  final double height;
+
+  RenderConstrainedBox createNode() => new RenderConstrainedBox(additionalConstraints: _getConstraints());
+
+  BoxConstraints _getConstraints() {

[abarth-chromium, 2015/06/15 22:50:55]

BoxConstraints get _additionalConstraints { ... }

+    var result = const BoxConstraints();
+    if (width != null)
+      result = result.applyWidth(width);
+    if (height != null)
+      result = result.applyHeight(height);
+    return result;
+  }
 
   void syncRenderObject(SizedBox old) {
     super.syncRenderObject(old);
-    root.desiredSize = desiredSize;
+    root.additionalConstraints = _getConstraints();
   }
 
 }
 
 class ConstrainedBox extends OneChildRenderObjectWrapper {
 
   ConstrainedBox({ this.constraints, UINode child, Object key })
     : super(child: child, key: key);
 
   RenderConstrainedBox get root { RenderConstrainedBox result = super.root; return result; }
@@ skipping 63 matching lines @@
   final EdgeDims margin;
   final EdgeDims padding;
   final Matrix4 transform;
   final double width;
   final double height;
 
   UINode build() {
     UINode current = child;
 
     if (child == null && width == null && height == null)
-      current = new SizedBox();
+      current = new SizedBox(
+        width: double.INFINITY,
+        height: double.INFINITY
+      );
 
     if (padding != null)
       current = new Padding(padding: padding, child: current);
 
     if (decoration != null)
       current = new DecoratedBox(decoration: decoration, child: current);
 
     if (width != null || height != null)
       current = new SizedBox(
-        width: width == null ? double.INFINITY : width,
-        height: height == null ? double.INFINITY : height,
+        width: width,
+        height: height,
         child: current
       );
 
     if (constraints != null)
       current = new ConstrainedBox(constraints: constraints, child: current);
 
     if (margin != null)
       current = new Padding(padding: margin, child: current);
 
     if (transform != null)
@@ skipping 116 matching lines @@
     root.src = src;
     root.requestedSize = size;
   }
 
   void insert(RenderObjectWrapper child, dynamic slot) {
     assert(false);
     // Image does not support having children currently
   }
 
 }