mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-10 00:58:43 +08:00
[flutter] Refactoring, example selector
This commit is contained in:
Mario Zechner
parent
733bfdcade
commit
a986469e07
@ -1,154 +1,53 @@
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:spine_flutter/spine_flutter.dart' as spine_flutter;
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:spine_flutter/spine_flutter.dart';
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void main() {
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runApp(const MyApp());
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}
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class SpineWidget extends StatefulWidget {
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final String skeletonFile;
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final String atlasFile;
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const SpineWidget(this.skeletonFile, this.atlasFile, {super.key});
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@override
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State<SpineWidget> createState() => _SpineWidgetState();
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}
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class _SpineWidgetState extends State<SpineWidget> {
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SpineSkeletonDrawable? skeletonDrawable;
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@override
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void initState() {
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super.initState();
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loadSkeleton(widget.skeletonFile, widget.atlasFile);
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}
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void loadSkeleton(String skeletonFile, String atlasFile) async {
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final atlas = await spine_flutter.SpineAtlas.fromAsset(rootBundle, atlasFile);
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final skeletonData = skeletonFile.endsWith(".json") ?
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spine_flutter.SpineSkeletonData.fromJson(atlas, await rootBundle.loadString(skeletonFile))
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: spine_flutter.SpineSkeletonData.fromBinary(atlas, await rootBundle.load(skeletonFile));
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skeletonDrawable = spine_flutter.SpineSkeletonDrawable(atlas, skeletonData);
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skeletonDrawable?.update(0.016);
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setState(() {});
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}
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class ExampleSelector extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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if (skeletonDrawable != null) {
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print("Skeleton loaded, rebuilding painter");
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return _SpineRenderObjectWidget(skeletonDrawable!);
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} else {
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print("Skeleton not loaded yet");
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return SizedBox();
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}
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}
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}
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const spacer = SizedBox(height: 10);
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class _SpineRenderObjectWidget extends LeafRenderObjectWidget {
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final SpineSkeletonDrawable skeletonDrawable;
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_SpineRenderObjectWidget(this.skeletonDrawable);
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@override
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RenderObject createRenderObject(BuildContext context) {
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return _SpineRenderObject(skeletonDrawable);
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}
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@override
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void updateRenderObject(BuildContext context, covariant _SpineRenderObject renderObject) {
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renderObject.skeletonDrawable = skeletonDrawable;
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}
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}
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class _SpineRenderObject extends RenderBox {
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SpineSkeletonDrawable _skeletonDrawable;
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double _deltaTime = 0;
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final Stopwatch _stopwatch = Stopwatch();
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_SpineRenderObject(this._skeletonDrawable);
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set skeletonDrawable(SpineSkeletonDrawable skeletonDrawable) {
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if (_skeletonDrawable == skeletonDrawable) return;
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// FIXME dispose old drawable here?
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_skeletonDrawable = skeletonDrawable;
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markNeedsPaint();
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}
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@override
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bool get sizedByParent => true;
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@override
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bool get isRepaintBoundary => true;
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@override
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bool hitTestSelf(Offset position) => true;
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@override
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void performResize() {
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size = constraints.biggest;
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}
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@override
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void attach(PipelineOwner owner) {
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super.attach(owner);
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_stopwatch.start();
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}
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@override
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void detach() {
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_stopwatch.stop();
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super.detach();
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}
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void _beginFrame(Duration duration) {
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_deltaTime = _stopwatch.elapsedTicks / _stopwatch.frequency;
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_stopwatch.reset();
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_stopwatch.start();
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markNeedsPaint();
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}
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@override
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void paint(PaintingContext context, Offset offset) {
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print("painting");
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final Canvas canvas = context.canvas
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..save()
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..clipRect(offset & size);
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final commands = _skeletonDrawable.render();
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canvas.save();
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canvas.translate(offset.dx, offset.dy);
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for (final cmd in commands) {
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canvas.drawVertices(cmd.vertices, BlendMode.modulate, _skeletonDrawable.atlas.atlasPagePaints[cmd.atlasPageIndex]);
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}
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canvas.restore();
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SchedulerBinding.instance.scheduleFrameCallback(_beginFrame);
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}
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}
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class MyApp extends StatefulWidget {
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const MyApp({Key? key}) : super(key: key);
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@override
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_MyAppState createState() => _MyAppState();
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}
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class _MyAppState extends State<MyApp> {
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@override
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void initState() {
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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return const MaterialApp(
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home: SpineWidget("assets/spineboy-pro.json", "assets/spineboy.atlas")
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return Scaffold(
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appBar: AppBar(title: const Text('Spine Examples')),
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body: Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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ElevatedButton(
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child: const Text('Spineboy'),
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute<void>(
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builder: (context) => const Spineboy(),
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),
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);
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},
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),
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spacer
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]
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)
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)
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);
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}
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}
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class Spineboy extends StatelessWidget {
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const Spineboy({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: const Text('Spineboy')),
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body: const Center(
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child: SpineWidget("assets/spineboy-pro.skel", "assets/spineboy.atlas")
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),
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);
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}
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}
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void main() {
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runApp(MaterialApp(
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title: "Spine Examples",
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home: Spineboy()
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));
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}
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@ -7,6 +7,7 @@ import 'package:flutter/rendering.dart';
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import 'package:flutter/services.dart';
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import 'spine_flutter_bindings_generated.dart';
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export 'spine_widget.dart';
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import 'package:path/path.dart' as Path;
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int majorVersion() => _bindings.spine_major_version();
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@ -150,4 +151,4 @@ final DynamicLibrary _dylib = () {
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throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}');
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}();
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final SpineFlutterBindings _bindings = SpineFlutterBindings(_dylib);
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final SpineFlutterBindings _bindings = SpineFlutterBindings(_dylib);
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135
spine-flutter/lib/spine_widget.dart
Normal file
135
spine-flutter/lib/spine_widget.dart
Normal file
@ -0,0 +1,135 @@
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import 'package:flutter/rendering.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'spine_flutter.dart';
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class SpineWidget extends StatefulWidget {
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final String skeletonFile;
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final String atlasFile;
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const SpineWidget(this.skeletonFile, this.atlasFile, {super.key});
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@override
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State<SpineWidget> createState() => _SpineWidgetState();
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}
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class _SpineWidgetState extends State<SpineWidget> {
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SpineSkeletonDrawable? skeletonDrawable;
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@override
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void initState() {
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super.initState();
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loadSkeleton(widget.skeletonFile, widget.atlasFile);
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}
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void loadSkeleton(String skeletonFile, String atlasFile) async {
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final atlas =
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await SpineAtlas.fromAsset(rootBundle, atlasFile);
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final skeletonData = skeletonFile.endsWith(".json")
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? SpineSkeletonData.fromJson(
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atlas, await rootBundle.loadString(skeletonFile))
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: SpineSkeletonData.fromBinary(
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atlas, await rootBundle.load(skeletonFile));
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skeletonDrawable = SpineSkeletonDrawable(atlas, skeletonData);
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skeletonDrawable?.update(0.016);
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setState(() {});
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}
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@override
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Widget build(BuildContext context) {
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if (skeletonDrawable != null) {
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print("Skeleton loaded, rebuilding painter");
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return _SpineRenderObjectWidget(skeletonDrawable!);
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} else {
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print("Skeleton not loaded yet");
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return SizedBox();
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}
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}
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}
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class _SpineRenderObjectWidget extends LeafRenderObjectWidget {
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final SpineSkeletonDrawable skeletonDrawable;
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_SpineRenderObjectWidget(this.skeletonDrawable);
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@override
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RenderObject createRenderObject(BuildContext context) {
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return _SpineRenderObject(skeletonDrawable);
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}
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@override
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void updateRenderObject(BuildContext context,
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covariant _SpineRenderObject renderObject) {
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renderObject.skeletonDrawable = skeletonDrawable;
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}
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}
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class _SpineRenderObject extends RenderBox {
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SpineSkeletonDrawable _skeletonDrawable;
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double _deltaTime = 0;
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final Stopwatch _stopwatch = Stopwatch();
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_SpineRenderObject(this._skeletonDrawable);
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set skeletonDrawable(SpineSkeletonDrawable skeletonDrawable) {
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if (_skeletonDrawable == skeletonDrawable) return;
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// FIXME dispose old drawable here?
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_skeletonDrawable = skeletonDrawable;
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markNeedsPaint();
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}
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@override
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bool get sizedByParent => true;
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@override
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bool get isRepaintBoundary => true;
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@override
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bool hitTestSelf(Offset position) => true;
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@override
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void performResize() {
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size = constraints.biggest;
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}
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@override
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void attach(PipelineOwner owner) {
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super.attach(owner);
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_stopwatch.start();
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}
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@override
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void detach() {
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_stopwatch.stop();
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super.detach();
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}
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void _beginFrame(Duration duration) {
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_deltaTime = _stopwatch.elapsedTicks / _stopwatch.frequency;
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_stopwatch.reset();
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_stopwatch.start();
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_skeletonDrawable.update(_deltaTime);
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markNeedsPaint();
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}
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@override
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void paint(PaintingContext context, Offset offset) {
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final Canvas canvas = context.canvas
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..save()
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..clipRect(offset & size);
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final commands = _skeletonDrawable.render();
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canvas.save();
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canvas.translate(offset.dx + size.width / 2, offset.dy + size.height);
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for (final cmd in commands) {
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canvas.drawVertices(cmd.vertices, BlendMode.modulate,
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_skeletonDrawable.atlas.atlasPagePaints[cmd.atlasPageIndex]);
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}
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canvas.restore();
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SchedulerBinding.instance.scheduleFrameCallback(_beginFrame);
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}
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}
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