Merge pull request #120 from rive-app/antialias_toggle

Add underlying support for antialiasing options

lib/src/rive_core/artboard.dart

@@ -21,6 +21,9 @@ import 'package:rive/src/generated/artboard_base.dart';
 export 'package:rive/src/generated/artboard_base.dart';
 
 class Artboard extends ArtboardBase with ShapePaintContainer {
+  /// Should antialiasing be used when drawing?
+  bool antialiasing = true;
+
   /// Artboard are one of the few (only?) components that can be orphaned.
   @override
   bool get canBeOrphaned => true;

lib/src/rive_core/shapes/paint/linear_gradient.dart

@@ -152,6 +152,7 @@ class LinearGradient extends LinearGradientBase with ShapePaintMutator {
 
   @override
   void syncColor() {
+    super.syncColor();
     paint.color = const ui.Color(0xFFFFFFFF)
         .withOpacity((opacity * renderOpacity).clamp(0, 1).toDouble());
   }

lib/src/rive_core/shapes/paint/shape_paint_mutator.dart

@@ -1,12 +1,16 @@
 import 'dart:ui';
 
 import 'package:flutter/material.dart';
+import 'package:rive/src/rive_core/artboard.dart';
 import 'package:rive/src/rive_core/shapes/shape_paint_container.dart';
 
 abstract class ShapePaintMutator {
   ShapePaintContainer? _shapePaintContainer;
   Paint _paint = Paint();
 
+  /// Getter for the component's artboard
+  Artboard? get artboard;
+
   /// The container is usually either a Shape or an Artboard, basically any of
   /// the various ContainerComponents that can contain Fills or Strokes.
   ShapePaintContainer? get shapePaintContainer => _shapePaintContainer;
@@ -22,7 +26,8 @@ abstract class ShapePaintMutator {
   }
 
   @protected
-  void syncColor();
+  @mustCallSuper
+  void syncColor() => _paint.isAntiAlias = artboard?.antialiasing ?? true;
 
   @mustCallSuper
   void initializePaintMutator(ShapePaintContainer container, Paint paint) {

lib/src/rive_core/shapes/paint/solid_color.dart

@@ -35,6 +35,7 @@ class SolidColor extends SolidColorBase with ShapePaintMutator {
 
   @override
   void syncColor() {
+    super.syncColor();
     paint.color = color
         .withOpacity((color.opacity * renderOpacity).clamp(0, 1).toDouble());
   }