measure_controller.dart 3.6 KB

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  1. import 'package:fis_measure/interfaces/process/workspace/exam_info.dart';
  2. import 'package:fis_measure/interfaces/process/workspace/measure_controller.dart';
  3. import 'package:fis_measure/process/workspace/application.dart';
  4. import 'package:fis_measure/view/player/controller.dart';
  5. import 'package:fis_measure/view/player/enums.dart';
  6. import 'package:fis_measure/view/player/events.dart';
  7. import 'package:fis_vid/data_host/data_host.dart';
  8. import 'package:fis_measure/interfaces/process/workspace/application.dart';
  9. import 'package:fis_measure/interfaces/process/player/play_controller.dart';
  10. import 'package:fis_measure/interfaces/process/config/style_config.dart';
  11. import 'package:fis_common/event/event_type.dart';
  12. import 'package:get/get.dart';
  13. import 'package:vid/us/vid_us_2d_visual.dart';
  14. import 'package:vid/us/vid_us_image.dart';
  15. import 'package:vid/us/vid_us_visual_area_type.dart';
  16. typedef MeasureImagesFetchFunc = Future<List<ExamImageInfo>> Function(
  17. String code);
  18. class MeasureController implements IMeasureController {
  19. late final ExamInfo _examInfo;
  20. VidDataHost? _vidDataHost;
  21. IPlayerController? _playerController;
  22. IApplication? _application;
  23. late final MeasureImagesFetchFunc _imagesFetchFunc;
  24. MeasureController(String code,
  25. {required MeasureImagesFetchFunc imagesFetchFunc}) {
  26. _examInfo = ExamInfo(code);
  27. _imagesFetchFunc = imagesFetchFunc;
  28. }
  29. @override
  30. ExamInfo get examInfo => _examInfo;
  31. @override
  32. String get currentVidUrl => examInfo.selectedImage.url;
  33. @override
  34. VidDataHost get dataHost => _vidDataHost!;
  35. @override
  36. bool get canDoMeasure => playerController.status == VidPlayStatus.pause;
  37. @override
  38. IPlayerController get playerController => _playerController!;
  39. @override
  40. // TODO: implement styleConfiguration
  41. IStyeConfiguration get styleConfiguration => throw UnimplementedError();
  42. @override
  43. IApplication get workingApplication => _application!;
  44. @override
  45. var imageLoaded = FEventHandler<ExamImageInfo?>();
  46. @override
  47. Future<void> load() async {
  48. final images = await _imagesFetchFunc.call(examInfo.code);
  49. examInfo.images.addAll(images);
  50. examInfo.selectedImageChanged.addListener(_onExamImageSelectedChanged);
  51. // // 加载第一张图像
  52. // examInfo.selectedImageIndex = 0;
  53. }
  54. @override
  55. void dispose() {
  56. examInfo.selectedImageChanged.removeListener(_onExamImageSelectedChanged);
  57. Get.delete<IApplication>();
  58. Get.delete<IPlayerController>();
  59. _vidDataHost?.release();
  60. }
  61. void _onExamImageSelectedChanged(Object sender, int index) {
  62. final url = currentVidUrl;
  63. _playerController?.dispose();
  64. _vidDataHost?.frameLoaded.dispose();
  65. Get.delete<IPlayerController>();
  66. Get.delete<IApplication>();
  67. _vidDataHost = VidDataHost(url);
  68. _playerController =
  69. Get.put<IPlayerController>(VidPlayerController(dataHost: dataHost));
  70. dataHost.frameLoaded.addListener(_onFrameLoaded);
  71. dataHost.load().then((value) {
  72. if (value == null) {
  73. // TOOO: add log
  74. }
  75. _application = Get.put<IApplication>(Application(_vidDataHost!.probe));
  76. playerController.eventHandler.addListener(_onPlayerEnvent);
  77. // 立即播放
  78. playerController.setLoadState(value != null);
  79. Future.delayed(const Duration(milliseconds: 100), () {
  80. playerController.play();
  81. });
  82. imageLoaded.emit(sender, examInfo.selectedImage);
  83. });
  84. }
  85. void _onFrameLoaded(Object sender, VidUsImage frame) {
  86. workingApplication.loadFrame(frame);
  87. }
  88. void _onPlayerEnvent(Object sender, VidPlayerEvent e) {
  89. if (e is VidPlayerStatusChangeEvent) {
  90. workingApplication.canMeasure = e.status == VidPlayStatus.pause;
  91. }
  92. }
  93. }