51 lines
1.6 KiB
Dart
51 lines
1.6 KiB
Dart
import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_filament/entities/entity_transform_controller.dart';
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import 'dart:async';
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///
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/// A widget that translates mouse gestures to zoom/pan/rotate actions.
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///
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class EntityTransformMouseControllerWidget extends StatelessWidget {
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final EntityTransformController? transformController;
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final Widget? child;
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EntityTransformMouseControllerWidget(
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{Key? key, required this.transformController, this.child})
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: super(key: key);
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Timer? _timer;
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (BuildContext context, BoxConstraints constraints) {
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return Listener(
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onPointerDown: (event) {
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if (kPrimaryMouseButton & event.buttons != 0) {
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transformController?.mouse1Down();
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}
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},
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onPointerUp: (event) {
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if (kPrimaryMouseButton & event.buttons != 0) {
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transformController?.mouse1Up();
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}
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},
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onPointerHover: (event) {
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_timer?.cancel();
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if (event.position.dx < 10) {
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_timer = Timer.periodic(const Duration(milliseconds: 17), (_) {
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transformController?.look(-30);
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});
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} else if (event.position.dx > constraints.maxWidth - 10) {
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_timer = Timer.periodic(const Duration(milliseconds: 17), (_) {
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transformController?.look(30);
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});
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} else {
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transformController?.look(event.delta.dx);
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}
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},
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child: child);
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});
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}
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}
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