Move sky/examples to sky/sdk/lib/example, and code changes to support that change. Fixes T277.

sky/examples/widgets/sector.dart

Index: sky/examples/widgets/sector.dart
diff --git a/sky/examples/widgets/sector.dart b/sky/examples/widgets/sector.dart
deleted file mode 100644
index 1aeec5245767e65e30dd69d1a34552eac4d5ca4e..0000000000000000000000000000000000000000
--- a/sky/examples/widgets/sector.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// 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 'package:sky/rendering/box.dart';
-import 'package:sky/rendering/flex.dart';
-import 'package:sky/rendering/sky_binding.dart';
-import 'package:sky/theme/colors.dart' as colors;
-import 'package:sky/theme/edges.dart';
-import 'package:sky/theme/theme_data.dart';
-import 'package:sky/theme/typography.dart' as typography;
-import 'package:sky/widgets/basic.dart';
-import 'package:sky/widgets/material.dart';
-import 'package:sky/widgets/raised_button.dart';
-import 'package:sky/widgets/scaffold.dart';
-import 'package:sky/widgets/theme.dart';
-import 'package:sky/widgets/tool_bar.dart';
-import 'package:sky/widgets/widget.dart';
-
-import '../rendering/sector_layout.dart';
-
-RenderBox initCircle() {
-  return new RenderBoxToRenderSectorAdapter(
-    innerRadius: 25.0,
-    child: new RenderSectorRing(padding: 0.0)
-  );
-}
-
-class SectorApp extends App {
-
-  RenderBoxToRenderSectorAdapter sectors = initCircle();
-  math.Random rand = new math.Random(1);
-
-  void addSector() {
-    double deltaTheta;
-    var ring = (sectors.child as RenderSectorRing);
-    SectorDimensions currentSize = ring.getIntrinsicDimensions(const SectorConstraints(), ring.deltaRadius);
-    if (currentSize.deltaTheta >= kTwoPi - (math.PI * 0.2 + 0.05))
-      deltaTheta = kTwoPi - currentSize.deltaTheta;
-    else
-      deltaTheta = math.PI * rand.nextDouble() / 5.0 + 0.05;
-    Color color = new Color(((0xFF << 24) + rand.nextInt(0xFFFFFF)) | 0x808080);
-    ring.add(new RenderSolidColor(color, desiredDeltaTheta: deltaTheta));
-    updateEnabledState();
-  }
-
-  void removeSector() {
-    (sectors.child as RenderSectorRing).remove((sectors.child as RenderSectorRing).lastChild);
-    updateEnabledState();
-  }
-
-  static RenderBox initSector(Color color) {
-    RenderSectorRing ring = new RenderSectorRing(padding: 1.0);
-    ring.add(new RenderSolidColor(const Color(0xFF909090), desiredDeltaTheta: kTwoPi * 0.15));
-    ring.add(new RenderSolidColor(const Color(0xFF909090), desiredDeltaTheta: kTwoPi * 0.15));
-    ring.add(new RenderSolidColor(color, desiredDeltaTheta: kTwoPi * 0.2));
-    return new RenderBoxToRenderSectorAdapter(
-      innerRadius: 5.0,
-      child: ring
-    );
-  }
-  RenderBoxToRenderSectorAdapter sectorAddIcon = initSector(const Color(0xFF00DD00));
-  RenderBoxToRenderSectorAdapter sectorRemoveIcon = initSector(const Color(0xFFDD0000));
-
-  bool enabledAdd = true;
-  bool enabledRemove = false;
-  void updateEnabledState() {
-    setState(() {
-      var ring = (sectors.child as RenderSectorRing);
-      SectorDimensions currentSize = ring.getIntrinsicDimensions(const SectorConstraints(), ring.deltaRadius);
-      enabledAdd = currentSize.deltaTheta < kTwoPi;
-      enabledRemove = ring.firstChild != null;
-    });
-  }
-
-  Widget build() {
-    return new Theme(
-      data: new ThemeData.light(primary: colors.Blue, darkToolbar: true),
-      child: new Scaffold(
-        toolbar: new ToolBar(
-            center: new Text('Sector Layout in a Widget Tree')),
-        body: new Material(
-          edge: MaterialEdge.canvas,
-          child: new Flex([
-              new Container(
-                padding: new EdgeDims.symmetric(horizontal: 8.0, vertical: 25.0),
-                child: new Flex([
-                    new RaisedButton(
-                      enabled: enabledAdd,
-                      child: new ShrinkWrapWidth(
-                        child: new Flex([
-                          new Container(
-                            padding: new EdgeDims.all(4.0),
-                            margin: new EdgeDims.only(right: 10.0),
-                            child: new WidgetToRenderBoxAdapter(sectorAddIcon)
-                          ),
-                          new Text('ADD SECTOR'),
-                        ])
-                      ),
-                      onPressed: addSector
-                    ),
-                    new RaisedButton(
-                      enabled: enabledRemove,
-                      child: new ShrinkWrapWidth(
-                        child: new Flex([
-                          new Container(
-                            padding: new EdgeDims.all(4.0),
-                            margin: new EdgeDims.only(right: 10.0),
-                            child: new WidgetToRenderBoxAdapter(sectorRemoveIcon)
-                          ),
-                          new Text('REMOVE SECTOR'),
-                        ])
-                      ),
-                      onPressed: removeSector
-                    )
-                  ],
-                  justifyContent: FlexJustifyContent.spaceAround
-                )
-              ),
-              new Flexible(
-                child: new Container(
-                  margin: new EdgeDims.all(8.0),
-                  decoration: new BoxDecoration(
-                    border: new Border.all(new BorderSide(color: new Color(0xFF000000)))
-                  ),
-                  padding: new EdgeDims.all(8.0),
-                  child: new WidgetToRenderBoxAdapter(sectors)
-                )
-              ),
-            ],
-            direction: FlexDirection.vertical,
-            justifyContent: FlexJustifyContent.spaceBetween
-          )
-        )
-      )
-    );
-  }
-}
-
-void main() {
-  runApp(new SectorApp());
-  SkyBinding.instance.onFrame = () {
-    // uncomment this for debugging:
-    // SkyBinding.instance.debugDumpRenderTree();
-  };
-}