ShrinkWrap the Stocks menu

sky/sdk/lib/framework/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 'dart:typed_data';
 import 'object.dart';
 import 'package:vector_math/vector_math.dart';
 import 'package:sky/framework/net/image_cache.dart' as image_cache;
@@ skipping 311 matching lines @@
       child.layout(constraints.apply(_additionalConstraints));
       size = child.size;
     } else {
       performResize();
     }
   }
 
   String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}additionalConstraints: ${additionalConstraints}\n';
 }
 
+class RenderShrinkWrapWidth extends RenderProxyBox {
+  RenderShrinkWrapWidth({ RenderBox child }) : super(child);
+
+  BoxConstraints _getInnerConstraints(BoxConstraints constraints) {
+    double width = child.getMaxIntrinsicWidth(constraints);
+    assert(width == constraints.constrainWidth(width));
+    return new BoxConstraints(minWidth: width,
+                              maxWidth: width,
+                              minHeight: constraints.minHeight,
+                              maxHeight: constraints.maxHeight);
+  }
+
+  double getMinIntrinsicWidth(BoxConstraints constraints) {
+    return child.getMaxIntrinsicWidth(constraints);
+  }
+
+  double getMaxIntrinsicWidth(BoxConstraints constraints) {
+    return child.getMaxIntrinsicWidth(constraints);
+  }
+
+  double getMinIntrinsicHeight(BoxConstraints constraints) {
+    return child.getMinIntrinsicHeight(_getInnerConstraints(constraints));
+  }
+
+  double getMaxIntrinsicHeight(BoxConstraints constraints) {
+    return child.getMaxIntrinsicHeight(_getInnerConstraints(constraints));
+  }
+
+  void performLayout() {
+    child.layout(_getInnerConstraints(constraints));
+    size = child.size;
+  }
+}
+
 class RenderClip extends RenderProxyBox {
   RenderClip({ RenderBox child }) : super(child);
 
   void paint(RenderObjectDisplayList canvas) {
     if (child != null) {
       canvas.save();
       canvas.clipRect(new Rect.fromSize(size));
       child.paint(canvas);
       canvas.restore();
     }
@@ skipping 12 matching lines @@
   EdgeDims get padding => _padding;
   void set padding (EdgeDims value) {
     assert(value != null);
     if (_padding == value)
       return;
     _padding = value;
     markNeedsLayout();
   }
 
   double getMinIntrinsicWidth(BoxConstraints constraints) {
+    double totalPadding = padding.left + padding.right;
     if (child != null)
-      return child.getMinIntrinsicWidth(constraints.deflate(padding));
-    return constraints.constrainWidth(padding.left + padding.right);
+      return child.getMinIntrinsicWidth(constraints.deflate(padding)) + totalPadding;
+    return constraints.constrainWidth(totalPadding);
   }
 
   double getMaxIntrinsicWidth(BoxConstraints constraints) {
+    double totalPadding = padding.left + padding.right;
     if (child != null)
-      return child.getMaxIntrinsicWidth(constraints.deflate(padding));
-    return constraints.constrainWidth(padding.left + padding.right);
+      return child.getMaxIntrinsicWidth(constraints.deflate(padding)) + totalPadding;
+    return constraints.constrainWidth(totalPadding);
   }
 
   double getMinIntrinsicHeight(BoxConstraints constraints) {
+    double totalPadding = padding.top + padding.bottom;
     if (child != null)
-      return child.getMinIntrinsicHeight(constraints.deflate(padding));
-    return constraints.constrainHeight(padding.top + padding.bottom);
+      return child.getMinIntrinsicHeight(constraints.deflate(padding)) + totalPadding;
+    return constraints.constrainHeight(totalPadding);
   }
 
   double getMaxIntrinsicHeight(BoxConstraints constraints) {
+    double totalPadding = padding.top + padding.bottom;
     if (child != null)
-      return child.getMaxIntrinsicHeight(constraints.deflate(padding));
-    return constraints.constrainHeight(padding.top + padding.bottom);
+      return child.getMaxIntrinsicHeight(constraints.deflate(padding)) + totalPadding;
+    return constraints.constrainHeight(totalPadding);
   }
 
   void performLayout() {
     assert(padding != null);
     BoxConstraints innerConstraints = constraints.deflate(padding);
     if (child == null) {
       size = innerConstraints.constrain(
           new Size(padding.left + padding.right, padding.top + padding.bottom));
       return;
     }
@@ skipping 529 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;
     }
   }
 }