104 lines
3.2 KiB
Dart
104 lines
3.2 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_filament/filament_controller.dart';
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class CameraMatrixOverlay extends StatefulWidget {
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final FilamentController controller;
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final bool showProjectionMatrices;
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const CameraMatrixOverlay(
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{super.key,
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required this.controller,
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required this.showProjectionMatrices});
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@override
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State<StatefulWidget> createState() => _CameraMatrixOverlayState();
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}
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class _CameraMatrixOverlayState extends State<CameraMatrixOverlay> {
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Timer? _cameraTimer;
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String? _cameraPosition;
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String? _cameraRotation;
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String? _cameraProjectionMatrix;
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String? _cameraCullingProjectionMatrix;
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void _tick(Timer timer) async {
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var cameraPosition = await widget.controller.getCameraPosition();
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var cameraRotation = await widget.controller.getCameraRotation();
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_cameraPosition =
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"${cameraPosition.storage.map((v) => v.toStringAsFixed(2))}";
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_cameraRotation =
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"${cameraRotation.storage.map((v) => v.toStringAsFixed(2))}";
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if (widget.showProjectionMatrices) {
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var projMatrix = await widget.controller.getCameraProjectionMatrix();
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var cullingMatrix =
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await widget.controller.getCameraCullingProjectionMatrix();
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_cameraProjectionMatrix =
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projMatrix.storage.map((v) => v.toStringAsFixed(2)).join(",");
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_cameraCullingProjectionMatrix =
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cullingMatrix.storage.map((v) => v.toStringAsFixed(2)).join(",");
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}
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setState(() {});
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}
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void _updateTimer() {
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_cameraTimer?.cancel();
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if (widget.controller.hasViewer.value) {
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_cameraTimer = Timer.periodic(const Duration(milliseconds: 50), _tick);
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}
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}
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@override
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void initState() {
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super.initState();
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_updateTimer();
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widget.controller.hasViewer.addListener(_updateTimer);
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}
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@override
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void didUpdateWidget(CameraMatrixOverlay oldWidget) {
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super.didUpdateWidget(oldWidget);
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setState(() {});
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}
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@override
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void dispose() {
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super.dispose();
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widget.controller.hasViewer.removeListener(_updateTimer);
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_cameraTimer?.cancel();
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.5),
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borderRadius: BorderRadius.circular(29)),
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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Text("Camera position : $_cameraPosition $_cameraRotation",
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style: const TextStyle(color: Colors.white, fontSize: 12)),
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widget.showProjectionMatrices
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? Text("Projection matrix : $_cameraProjectionMatrix",
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style: const TextStyle(color: Colors.white, fontSize: 12))
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: Container(),
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widget.showProjectionMatrices
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? Text("Culling matrix : $_cameraCullingProjectionMatrix",
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style: const TextStyle(color: Colors.white, fontSize: 12))
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: Container(),
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]));
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}
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}
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