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add rotation #21

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5 changes: 4 additions & 1 deletion .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -13,4 +13,7 @@ example/.idea

.idea

android/.cxx
android/.cxx

ios/opencv2.framework
android/src/main/jniLibs
182 changes: 91 additions & 91 deletions example/lib/edge_detector.dart
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Original file line number Diff line number Diff line change
@@ -1,91 +1,91 @@
import 'dart:async';
import 'dart:isolate';

import 'package:simple_edge_detection/edge_detection.dart';

class EdgeDetector {
static Future<void> startEdgeDetectionIsolate(EdgeDetectionInput edgeDetectionInput) async {
EdgeDetectionResult result = await EdgeDetection.detectEdges(edgeDetectionInput.inputPath);
edgeDetectionInput.sendPort.send(result);
}

static Future<void> processImageIsolate(ProcessImageInput processImageInput) async {
EdgeDetection.processImage(processImageInput.inputPath, processImageInput.edgeDetectionResult);
processImageInput.sendPort.send(true);
}

Future<EdgeDetectionResult> detectEdges(String filePath) async {
final port = ReceivePort();

_spawnIsolate<EdgeDetectionInput>(
startEdgeDetectionIsolate,
EdgeDetectionInput(
inputPath: filePath,
sendPort: port.sendPort
),
port
);

return await _subscribeToPort<EdgeDetectionResult>(port);
}

Future<bool> processImage(String filePath, EdgeDetectionResult edgeDetectionResult) async {
final port = ReceivePort();

_spawnIsolate<ProcessImageInput>(
processImageIsolate,
ProcessImageInput(
inputPath: filePath,
edgeDetectionResult: edgeDetectionResult,
sendPort: port.sendPort
),
port
);

return await _subscribeToPort<bool>(port);
}

void _spawnIsolate<T>(Function function, dynamic input, ReceivePort port) {
Isolate.spawn<T>(
function,
input,
onError: port.sendPort,
onExit: port.sendPort
);
}

Future<T> _subscribeToPort<T>(ReceivePort port) async {
StreamSubscription sub;
var completer = new Completer<T>();
sub = port.listen((result) async {
await sub?.cancel();
completer.complete(await result);
});
return completer.future;
}
}

class EdgeDetectionInput {
EdgeDetectionInput({
this.inputPath,
this.sendPort
});

String inputPath;
SendPort sendPort;
}

class ProcessImageInput {
ProcessImageInput({
this.inputPath,
this.edgeDetectionResult,
this.sendPort
});

String inputPath;
EdgeDetectionResult edgeDetectionResult;
SendPort sendPort;
}
// import 'dart:async';
// import 'dart:isolate';
//
// import 'package:simple_edge_detection/edge_detection.dart';
//
// class EdgeDetector {
// static Future<void> startEdgeDetectionIsolate(EdgeDetectionInput edgeDetectionInput) async {
// EdgeDetectionResult result = await EdgeDetection.detectEdges(edgeDetectionInput.inputPath);
// edgeDetectionInput.sendPort.send(result);
// }
//
// static Future<void> processImageIsolate(ProcessImageInput processImageInput) async {
// EdgeDetection.processImage(processImageInput.inputPath, processImageInput.edgeDetectionResult);
// processImageInput.sendPort.send(true);
// }
//
// Future<EdgeDetectionResult> detectEdges(String filePath) async {
// final port = ReceivePort();
//
// _spawnIsolate<EdgeDetectionInput>(
// startEdgeDetectionIsolate,
// EdgeDetectionInput(
// inputPath: filePath,
// sendPort: port.sendPort
// ),
// port
// );
//
// return await _subscribeToPort<EdgeDetectionResult>(port);
// }
//
// Future<bool> processImage(String filePath, EdgeDetectionResult edgeDetectionResult) async {
// final port = ReceivePort();
//
// _spawnIsolate<ProcessImageInput>(
// processImageIsolate,
// ProcessImageInput(
// inputPath: filePath,
// edgeDetectionResult: edgeDetectionResult,
// sendPort: port.sendPort
// ),
// port
// );
//
// return await _subscribeToPort<bool>(port);
// }
//
// void _spawnIsolate<T>(Function function, dynamic input, ReceivePort port) {
// Isolate.spawn<T>(
// function,
// input,
// onError: port.sendPort,
// onExit: port.sendPort
// );
// }
//
// Future<T> _subscribeToPort<T>(ReceivePort port) async {
// StreamSubscription sub;
//
// var completer = new Completer<T>();
//
// sub = port.listen((result) async {
// await sub?.cancel();
// completer.complete(await result);
// });
//
// return completer.future;
// }
// }
//
// class EdgeDetectionInput {
// EdgeDetectionInput({
// this.inputPath,
// this.sendPort
// });
//
// String inputPath;
// SendPort sendPort;
// }
//
// class ProcessImageInput {
// ProcessImageInput({
// this.inputPath,
// this.edgeDetectionResult,
// this.sendPort
// });
//
// String inputPath;
// EdgeDetectionResult edgeDetectionResult;
// SendPort sendPort;
// }
4 changes: 2 additions & 2 deletions example/lib/scan.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,6 @@ import 'package:path_provider/path_provider.dart';
import 'package:simple_edge_detection_example/cropping_preview.dart';

import 'camera_view.dart';
import 'edge_detector.dart';
import 'image_view.dart';

class Scan extends StatefulWidget {
Expand Down Expand Up @@ -180,7 +179,8 @@ class _ScanState extends State<Scan> {
return;
}

bool result = await EdgeDetector().processImage(filePath, edgeDetectionResult);
double rotation=0;
bool result = await EdgeDetector().processImage(filePath, edgeDetectionResult,rotation);

if (result == false) {
return;
Expand Down
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