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Remove duplicate copy of animation/curves.dart in fn widgets

Browse source 
Instead, we can just use the existing animation/curves.dart file in the
framework.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/976373003
This commit is contained in:
Adam Barth 2015-03-05 09:59:22 -08:00
parent 65592c41cd
commit 38ef054f95
2 changed files with 1 additions and 54 deletions
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54
examples/fn/widgets/animationgenerator.dart
View file

@ -81,57 +81,3 @@ class AnimationGenerator extends FrameGenerator {
return true;
}
}
double _evaluateCubic(double a, double b, double m) {
// TODO(abarth): Would Math.pow be faster?
return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m;
}
const double _kCubicErrorBound = 0.001;
abstract class Curve {
double transform(double t);
}
class Linear implements Curve {
const Linear();
double transform(double t) {
return t;
}
}
class Cubic implements Curve {
final double a;
final double b;
final double c;
final double d;
const Cubic(this.a, this.b, this.c, this.d);
double transform(double t) {
if (t == 0.0 || t == 1.0)
return t;
double start = 0.0;
double end = 1.0;
while (true) {
double midpoint = (start + end) / 2;
double estimate = _evaluateCubic(a, c, midpoint);
if ((t - estimate).abs() < _kCubicErrorBound)
return _evaluateCubic(b, d, midpoint);
if (estimate < t)
start = midpoint;
else
end = midpoint;
}
}
}
const Linear linear = const Linear();
const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0);
const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0);
const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0);
const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0);

1
examples/fn/widgets/widgets.dart
View file

@ -2,6 +2,7 @@ library widgets;
import '../lib/fn.dart';
import '../../../framework/fling-curve.dart';
import '../../../framework/animation/curves.dart';
import '../../../framework/theme/colors.dart';
import '../../../framework/theme/shadows.dart';
import 'dart:collection';