Update latest lints and cleanup (#361)

analysis_options.yaml

@@ -1,4 +1,4 @@
-include: package:lints/recommended.yaml
+include: package:dart_flutter_team_lints/analysis_options.yaml
 
 analyzer:
   language:
@@ -17,6 +17,8 @@ analyzer:
     # Does not seem to work correctly with null-safety
     cancel_subscriptions: ignore
 
+    # too many to cleanup now
+    lines_longer_than_80_chars: ignore
     # Enable for StageXL 2.0
     avoid_positional_boolean_parameters: ignore
     constant_identifier_names: ignore
@@ -26,57 +28,41 @@ linter:
     - always_put_required_named_parameters_first
     - avoid_annotating_with_dynamic
     - avoid_bool_literals_in_conditional_expressions
-    - avoid_catching_errors
     - avoid_double_and_int_checks
-    - avoid_dynamic_calls
     - avoid_escaping_inner_quotes
     - avoid_field_initializers_in_const_classes
     - avoid_js_rounded_ints
     - avoid_positional_boolean_parameters
     - avoid_private_typedef_functions
     - avoid_redundant_argument_values
-    - avoid_returning_null_for_future
     - avoid_returning_this
     - avoid_type_to_string
     - avoid_types_on_closure_parameters
     - avoid_unused_constructor_parameters
     - avoid_void_async
     - cancel_subscriptions
     - close_sinks
-    - comment_references
     - join_return_with_assignment
     - leading_newlines_in_multiline_strings
     - literal_only_boolean_expressions
     - missing_whitespace_between_adjacent_strings
     - no_adjacent_strings_in_list
     - no_runtimeType_toString
     - noop_primitive_operations
-    - omit_local_variable_types
-    - only_throw_errors
-    - prefer_asserts_in_initializer_lists
     - prefer_asserts_with_message
-    - prefer_const_constructors
     - prefer_const_constructors_in_immutables
     - prefer_const_declarations
     - prefer_constructors_over_static_methods
     - prefer_expression_function_bodies
     - prefer_if_elements_to_conditional_expressions
     - prefer_int_literals
     - prefer_mixin
-    - prefer_single_quotes
     - sort_unnamed_constructors_first
-    - throw_in_finally
     - tighten_type_of_initializing_formals
-    - unawaited_futures
     - unnecessary_await_in_return
-    - unnecessary_lambdas
     - unnecessary_null_checks
-    - unnecessary_parenthesis
     - unnecessary_raw_strings
-    - unnecessary_statements
-    - use_is_even_rather_than_modulo
     - use_named_constants
     - use_raw_strings
     - use_setters_to_change_properties
     - use_string_buffers
-    - use_super_parameters

lib/src/animation.dart

@@ -6,7 +6,7 @@
 /// Built in transition function (easing functions) can be viewed here:
 /// [Transition Functions](http://www.stagexl.org/docs/transitions.html)
 ///
-library stagexl.animation;
+library;
 
 import 'dart:async';
 import 'dart:math';

lib/src/animation/animatable.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// This abstract [Animatable] class declares a common interface
 /// for other classes that can be added to the [Juggler].

lib/src/animation/animation_chain.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [AnimationChain] class is used to animate multiple [Animatable]s.
 ///

lib/src/animation/animation_group.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [AnimationGroup] class is used to animate multiple Animatables.
 /// Those Animatables are animated in parallel and the onComplete

lib/src/animation/delayed_call.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [DelayedCall] class is used to delay the invocation of
 /// a function by a given time.

lib/src/animation/juggler.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 class _AnimatableLink {
   Animatable? animatable;

lib/src/animation/transition.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [TransitionFunction] is the function signature for transitions used
 /// in the [Tween] and [Translation] classes. The function takes the ratio

lib/src/animation/translation.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [Translation] class animates a value by continuously calling
 /// the [onUpdate] function.

lib/src/animation/tween.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// Use the [Tween] class to animate the properties of a display object like
 /// x, y, scaleX, scaleY, alpha, rotation etc. The animation starts with the

lib/src/animation/tween_object.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The abstract base class for [TweenObject2D] and [TweenObject3D].
 

lib/src/animation/tween_property.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The [TweenProperty] class controls the value of a property while
 /// the tween is running. This class is returned by the getters of

lib/src/animation/tween_property_accessor.dart

@@ -1,4 +1,4 @@
-part of stagexl.animation;
+part of '../animation.dart';
 
 /// The abstract base class for [TweenPropertyAccessor2D] and
 /// [TweenPropertyAccessor3D]. Those accessors are returned by

lib/src/display.dart

@@ -11,12 +11,12 @@
 /// please read the wiki article about the basics of StageXL here:
 /// [Introducing StageXL](http://www.stagexl.org/docs/wiki-articles.html?article=introduction)
 ///
-library stagexl.display;
+library;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:html' as html;
-import 'dart:html' show CanvasElement, ImageElement, VideoElement, ImageBitmap;
+import 'dart:html' show CanvasElement, ImageBitmap, ImageElement, VideoElement;
 import 'dart:math' hide Point, Rectangle;
 import 'dart:typed_data';
 
@@ -25,8 +25,8 @@ import 'drawing.dart';
 import 'engine.dart';
 import 'events.dart';
 import 'geom.dart';
-import 'internal/image_bitmap_loader.dart';
 import 'internal/environment.dart' as env;
+import 'internal/image_bitmap_loader.dart';
 import 'internal/image_loader.dart';
 import 'internal/tools.dart';
 import 'ui.dart';

lib/src/display/bitmap.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The Bitmap class represents display objects that represent bitmap images.
 ///

lib/src/display/bitmap_container.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// A fast container for Bitmap instances.
 ///

lib/src/display/bitmap_data.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The BitmapData class lets you load or create arbitrarily sized transparent
 /// or opaque bitmap images and manipulate them in various ways at runtime.

lib/src/display/bitmap_data_channel.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class BitmapDataChannel {
   static const int RED = 1;

lib/src/display/bitmap_data_load_info.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The BitmapDataLoadInfo creates information about the best matching image
 /// file based on the specified image url, the pixelRatios and the current

lib/src/display/bitmap_data_load_options.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The BitmapDataLoadOptions class contains different options to configure
 /// how BitmapDatas are loaded from the server.

lib/src/display/bitmap_data_update_batch.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The [BitmapDataUpdateBatch] class provides all the [BitmapData] update
 /// methods, but does not automatically update the underlying WebGL texture.

lib/src/display/bitmap_drawable.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 abstract class BitmapDrawable {
   void render(RenderState renderState);

lib/src/display/bitmap_filter.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 abstract class BitmapFilter extends RenderFilter {
   BitmapFilter clone();

lib/src/display/color_transform.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class ColorTransform {
   final Float32List multipliers = Float32List(4);

lib/src/display/display_object.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The base class for all objects that can be placed on the display list.
 ///

lib/src/display/display_object_cache.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class _DisplayObjectCache {
   final DisplayObject displayObject;

lib/src/display/display_object_children.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// This class is returned by the [DisplayObjectParent.children] getter.
 ///

lib/src/display/display_object_container.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The base class for all objects that can serve as display object containers
 /// on the display list.

lib/src/display/display_object_container_3d.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The abstract [DisplayObjectContainer3D] class enables 3D transformations
 /// of 2D display objects.

lib/src/display/display_object_parent.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// An abstract class implemented by containers for display objects.
 ///

lib/src/display/interactive_object.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The [InteractiveObject] class is the abstract base class for all display
 /// objects with which the user can interact, using the mouse, keyboard, or

lib/src/display/mask.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// A [Mask] describes a geometric shape to show only a portion of a
 /// [DisplayObject]. Pixels inside of the shape are visible and pixels

lib/src/display/render_loop.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class RenderLoop extends RenderLoopBase {
   final Juggler _juggler = Juggler();

lib/src/display/shape.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// This class is used to create lightweight shapes.
 ///

lib/src/display/simple_button.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 enum SimpleButtonState { Up, Over, Down }
 

lib/src/display/sprite.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The Sprite class is a basic display list building block.
 ///

lib/src/display/sprite_3d.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The [Sprite3D] class enables 3D transformations of 2D display objects.
 ///

lib/src/display/stage.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The StageRenderMode defines how often the Stage is rendered by
 /// the [RenderLoop] where the Stage is attached to.

lib/src/display/stage_console.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class StageConsole extends DisplayObject {
   final String _fontImage =

lib/src/display/stage_options.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 /// The options used by the [Stage] constructor to setup the stage.
 

lib/src/display/stage_tools.dart

@@ -1,4 +1,4 @@
-part of stagexl.display;
+part of '../display.dart';
 
 class _MouseButton {
   final String mouseDownEventType;

lib/src/display_ex.dart

@@ -1,7 +1,7 @@
 /// More advanced display objects for special use cases built on top of
 /// the basic display objects.
 ///
-library stagexl.display_ex;
+library;
 
 import 'dart:async';
 import 'dart:html' show CssStyleDeclaration, Element;

lib/src/display_ex/canvas_shadow_wrapper.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// This class is a replacement for the deprecated shadow property of the
 /// DisplayObject class. Please consider to use the DropShadowFilter class

lib/src/display_ex/flip_book.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// A display object to play sprite sheet animations.
 ///

lib/src/display_ex/gauge.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// A display object to show a section of a [BitmapData] according
 /// to the [ratio] property.

lib/src/display_ex/glass_plate.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// An invisible and rectangular display object to catch input events.
 ///

lib/src/display_ex/html_object.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// The HtmlObject adds a regular HTML element to the display list.
 /// You can set all the well known DisplayObject properties like x, y, scaleX,

lib/src/display_ex/mesh.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// The [Mesh] class allows free form deformations of a [BitmapData] instance
 /// by using triangles to form an arbitrary shape.

lib/src/display_ex/scale9_bitmap.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// The Scale9Bitmap display object divides it's BitmapData into a 3x3 grid
 /// defined by the [grid] rectangle. The corners of the grid are rendered

lib/src/display_ex/time_gauge.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// A [Gauge] specially designed to work in combination with the [Juggler].
 ///

lib/src/display_ex/video_object.dart

@@ -1,4 +1,4 @@
-part of stagexl.display_ex;
+part of '../display_ex.dart';
 
 /// The VideoObject class is a display object to show and control videos.
 ///