spine-runtimes/spine-flutter/example/lib/debug_rendering.dart
2025-10-29 14:12:27 +01:00

82 lines
3.1 KiB
Dart

//
// Spine Runtimes License Agreement
// Last updated April 5, 2025. Replaces all prior versions.
//
// Copyright (c) 2013-2025, Esoteric Software LLC
//
// Integration of the Spine Runtimes into software or otherwise creating
// derivative works of the Spine Runtimes is permitted under the terms and
// conditions of Section 2 of the Spine Editor License Agreement:
// http://esotericsoftware.com/spine-editor-license
//
// Otherwise, it is permitted to integrate the Spine Runtimes into software
// or otherwise create derivative works of the Spine Runtimes (collectively,
// "Products"), provided that each user of the Products must obtain their own
// Spine Editor license and redistribution of the Products in any form must
// include this license and copyright notice.
//
// THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
// BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
import 'package:spine_flutter/spine_flutter.dart';
import 'package:flutter/material.dart';
class DebugRendering extends StatelessWidget {
const DebugRendering({super.key});
@override
Widget build(BuildContext context) {
reportLeaks();
const debugRenderer = DebugRenderer();
final controller = SpineWidgetController(
onInitialized: (controller) {
controller.animationState.setAnimation(0, "walk", true);
},
onBeforePaint: (controller, canvas) {
// Save the current transform and other canvas state
canvas.save();
// Get the current canvas transform an invert it, so we can work in the
// canvas coordinate system.
final currentMatrix = canvas.getTransform();
final invertedMatrix = Matrix4.tryInvert(Matrix4.fromFloat64List(currentMatrix));
if (invertedMatrix != null) {
canvas.transform(invertedMatrix.storage);
}
// Draw something.
final Paint paint = Paint()
..color = Colors.black
..strokeWidth = 2.0;
canvas.drawLine(
const Offset(0, 0),
Offset(canvas.getLocalClipBounds().width, canvas.getLocalClipBounds().height),
paint,
);
// Restore the old transform and canvas state
canvas.restore();
},
onAfterPaint: (controller, canvas, commands) {
debugRenderer.render(controller.drawable, canvas, commands);
},
);
return Scaffold(
appBar: AppBar(title: const Text('Debug Renderer')),
body: SpineWidget.fromAsset("assets/spineboy.atlas", "assets/spineboy-pro.skel", controller),
);
}
}