Rename all the things

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

Index: sky/sdk/lib/framework/widgets/checkbox.dart
diff --git a/sky/sdk/lib/framework/widgets/checkbox.dart b/sky/sdk/lib/framework/widgets/checkbox.dart
deleted file mode 100644
index 4f8f99aaab3a5568b2461197622c2164c20f9381..0000000000000000000000000000000000000000
--- a/sky/sdk/lib/framework/widgets/checkbox.dart
+++ /dev/null
@@ -1,135 +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:sky' as sky;
-
-import 'package:sky/framework/theme2/colors.dart' as colors;
-
-import '../animation/animated_value.dart';
-import '../animation/curves.dart';
-import '../rendering/box.dart';
-import 'animated_component.dart';
-import 'basic.dart';
-
-typedef void ValueChanged(value);
-
-const double _kMidpoint = 0.5;
-const double _kCheckDuration = 200.0;
-const sky.Color _kUncheckedColor = const sky.Color(0x8A000000);
-// TODO(jackson): This should change colors with the theme
-sky.Color _kCheckedColor = colors.Purple[500];
-const double _kEdgeSize = 20.0;
-const double _kEdgeRadius = 1.0;
-
-class Checkbox extends AnimatedComponent {
-
-  Checkbox({
-    Object key,
-    this.checked,
-    this.onChanged
-  }) : super(key: key) {
-    _checkedAnimation = new AnimatedValue(checked ? 1.0 : 0.0);
-  }
-
-  bool checked;
-  AnimatedValue _checkedAnimation;
-  ValueChanged onChanged;
-
-  void syncFields(Checkbox source) {
-    onChanged = source.onChanged;
-    if (checked != source.checked) {
-      checked = source.checked;
-      double targetValue = checked ? 1.0 : 0.0;
-      double difference = (_checkedAnimation.value - targetValue).abs();
-      if (difference > 0) {
-        double duration = difference * _kCheckDuration;
-        _checkedAnimation.stop();
-        Curve curve;
-        if (targetValue > _checkedAnimation.value) {
-          curve = easeIn;
-        } else {
-          curve = easeOut;
-        }
-        _checkedAnimation.animateTo(targetValue, duration, curve: curve);
-      }
-    }
-    super.syncFields(source);
-  }
-
-  void _handleClick(sky.Event e) {
-    onChanged(!checked);
-  }
-
-  UINode build() {
-    return new EventListenerNode(
-      new Container(
-        margin: const EdgeDims.symmetric(horizontal: 5.0),
-        width: _kEdgeSize + 2.0,
-        height: _kEdgeSize + 2.0,
-        child: new CustomPaint(
-          token: _checkedAnimation.value,
-          callback: (sky.Canvas canvas, Size size) {
-            // Choose a color between grey and the theme color
-            sky.Paint paint = new sky.Paint()..strokeWidth = 2.0
-                                             ..color = _kUncheckedColor;
-
-            // The rrect contracts slightly during the animation
-            double inset = 2.0 - (_checkedAnimation.value - _kMidpoint).abs() * 2.0;
-            sky.Rect rect = new sky.Rect.fromLTRB(inset, inset, _kEdgeSize - inset, _kEdgeSize - inset);
-            sky.RRect rrect = new sky.RRect()..setRectXY(rect, _kEdgeRadius, _kEdgeRadius);
-
-            
-            // Outline of the empty rrect
-            paint.setStyle(sky.PaintingStyle.stroke);
-            canvas.drawRRect(rrect, paint);
-
-            // Radial gradient that changes size
-            if (_checkedAnimation.value > 0) {
-              paint.setStyle(sky.PaintingStyle.fill);
-              paint.setShader(
-                new sky.Gradient.radial(
-                  new Point(_kEdgeSize / 2.0, _kEdgeSize / 2.0),
-                  _kEdgeSize * (_kMidpoint - _checkedAnimation.value) * 8.0,
-                  [const sky.Color(0x00000000), _kUncheckedColor],
-                  [0.0, 1.0]
-                )
-              );
-              canvas.drawRRect(rrect, paint);
-            }
-
-            if (_checkedAnimation.value > _kMidpoint) {
-              double t = (_checkedAnimation.value - _kMidpoint) / (1.0 - _kMidpoint);
-
-              // Solid filled rrect
-              paint.setStyle(sky.PaintingStyle.strokeAndFill);
-              paint.color = new Color.fromARGB((t * 255).floor(),
-                                               _kCheckedColor.red,
-                                               _kCheckedColor.green,
-                                               _kCheckedColor.blue);
-              canvas.drawRRect(rrect, paint);
-
-              // White inner check
-              paint.color = const sky.Color(0xFFFFFFFF);
-              paint.setStyle(sky.PaintingStyle.stroke);
-              sky.Path path = new sky.Path();
-              sky.Point start = new sky.Point(_kEdgeSize * 0.2, _kEdgeSize * 0.5);
-              sky.Point mid = new sky.Point(_kEdgeSize * 0.4, _kEdgeSize * 0.7);
-              sky.Point end = new sky.Point(_kEdgeSize * 0.8, _kEdgeSize * 0.3);
-              Point lerp(Point p1, Point p2, double t)
-                => new Point(p1.x * (1.0 - t) + p2.x * t, p1.y * (1.0 - t) + p2.y * t);
-              sky.Point drawStart = lerp(start, mid, 1.0 - t);
-              sky.Point drawEnd = lerp(mid, end, t);
-              path.moveTo(drawStart.x, drawStart.y);
-              path.lineTo(mid.x, mid.y);
-              path.lineTo(drawEnd.x, drawEnd.y);
-              canvas.drawPath(path, paint);
-            }
-          }
-        )
-      ),
-      onGestureTap: _handleClick
-    );
-  }
-
-}