/// <inheritdoc cref="IPaintTask{TDrawingContext}.CloneTask" /> public override IPaintTask <SkiaSharpDrawingContext> CloneTask() { return(new RadialGradientPaintTask(_gradientStops, _center, _radius, _colorPos, _tileMode) { Style = Style, IsStroke = IsStroke, IsFill = IsFill, Color = Color, IsAntialias = IsAntialias, StrokeThickness = StrokeThickness, StrokeCap = StrokeCap, StrokeJoin = StrokeJoin, StrokeMiter = StrokeMiter, PathEffect = PathEffect?.Clone(), ImageFilter = ImageFilter?.Clone() }); }
/// <inheritdoc cref="IPaintTask{TDrawingContext}.CloneTask" /> public override IPaintTask <SkiaSharpDrawingContext> CloneTask() { var clone = new SolidColorPaintTask { Style = Style, IsStroke = IsStroke, IsFill = IsFill, Color = Color, IsAntialias = IsAntialias, StrokeThickness = StrokeThickness, StrokeCap = StrokeCap, StrokeJoin = StrokeJoin, StrokeMiter = StrokeMiter, PathEffect = PathEffect?.Clone(), ImageFilter = ImageFilter?.Clone() }; return(clone); }
protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); RequestWindowFeature(WindowFeatures.NoTitle); bool cameraPreviewCallbackWithBuffer = false; SetContentView(Resource.Layout.CameraPreviewLayout); _bgrBuffers = new ImageBufferFactory <Mat>(size => new Mat(size.Height, size.Width, DepthType.Cv8U, 3)); _previewBitmapBuffers = new ImageBufferFactory <Android.Graphics.Bitmap>(s => Android.Graphics.Bitmap.CreateBitmap(s.Width, s.Height, Android.Graphics.Bitmap.Config.Rgb565)); _topLayer = new ProcessedCameraPreview(this, cameraPreviewCallbackWithBuffer); _topLayer.PictureTaken += this.PictureTaken; _topLayer.ImagePreview += this.ImagePreview; _preview = new CameraPreview(this, _topLayer, cameraPreviewCallbackWithBuffer); RelativeLayout mainLayout = FindViewById <RelativeLayout>(Resource.Id.CameraPreiewRelativeLayout); mainLayout.AddView(_preview, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent)); mainLayout.AddView(_topLayer, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent)); #if GL_VIEW _topLayer.SetZOrderOnTop(true); #endif RequestedOrientation = Android.Content.PM.ScreenOrientation.Landscape; ImageButton switchCameraButton = FindViewById <ImageButton>(Resource.Id.CameraPreviewSwitchCameraImageButton); if (Camera.NumberOfCameras <= 1) { switchCameraButton.Visibility = ViewStates.Invisible; } else { switchCameraButton.BringToFront(); } switchCameraButton.Click += delegate { _preview.SwitchCamera(); }; ImageButton captureImageButton = FindViewById <ImageButton>(Resource.Id.CameraPreviewCaptureImageButton); captureImageButton.Click += delegate { Camera camera = _preview.Camera; if (camera != null) { Camera.Parameters p = camera.GetParameters(); p.PictureFormat = Android.Graphics.ImageFormatType.Jpeg; //p.PictureFormat = Android.Graphics.ImageFormatType.Rgb565; camera.SetParameters(p); camera.TakePicture(null, null, _topLayer); } }; _lastCapturedImageButton = FindViewById <ImageButton>(Resource.Id.capturedImageButton); _lastCapturedImageButton.Click += delegate { if (_lastSavedImageFile != null) { Intent intent = new Intent(Intent.ActionView, Android.Net.Uri.FromFile(new Java.IO.File(_lastSavedImageFile.FullName))); intent.SetType("image/jpeg"); StartActivity(intent); } }; _lastCapturedImageButton.BringToFront(); _previewButtons = new ImageButton[4]; _previewFilters = new ImageFilter[4]; _previewButtons[0] = FindViewById <ImageButton>(Resource.Id.previewImageButton); _previewFilters[0] = null; _previewButtons[0].Click += delegate { if (_imageFilter != null) { _imageFilter.Dispose(); _imageFilter = null; } }; _previewButtons[1] = FindViewById <ImageButton>(Resource.Id.cannyImageButton); _previewFilters[1] = new CannyFilter(100, 60, 3); _previewButtons[2] = FindViewById <ImageButton>(Resource.Id.colorMapImageButton); _previewFilters[2] = new ColorMapFilter(Emgu.CV.CvEnum.ColorMapType.Autumn); //_previewFilters[3] = new ColorMapFilter(Emgu.CV.CvEnum.ColorMapType.Summer); //_previewFilters[3] = null; _previewButtons[3] = FindViewById <ImageButton>(Resource.Id.distorImageButton); _previewFilters[3] = new DistorFilter(0.5, 0.5, -1.5); for (int i = 1; i < _previewButtons.Length; ++i) { ImageFilter f = _previewFilters[i]; _previewButtons[i].Click += delegate { if (_imageFilter != null) { _imageFilter.Dispose(); } _imageFilter = f.Clone() as ImageFilter; }; } }
public void PictureTaken(object sender, ProcessedCameraPreview.PictureTakenEventArgs ea) { Android.Graphics.Bitmap bmp = ea.Bitmap; Camera camera = ea.Camera; try { Android.Graphics.Bitmap thumbnail = null; int maxThumbnailSize = 96; if (_imageFilter == null) { _lastSavedImageFile = ProcessedCameraPreview.SaveBitmap(this, bmp, PackageName, _topLayer); thumbnail = ProcessedCameraPreview.GetThumbnail(bmp, maxThumbnailSize); bmp.Dispose(); } else { Image <Bgr, Byte> buffer1 = new Image <Bgr, byte>(bmp); bmp.Dispose(); using (ImageFilter filter = _imageFilter.Clone() as ImageFilter) { if (filter is DistorFilter) { //reduce the image size to half because the distor filter used lots of memory Image <Bgr, Byte> tmp = buffer1.PyrDown(); buffer1.Dispose(); buffer1 = tmp; } if (filter.InplaceCapable) { filter.ProcessData(buffer1.Mat, buffer1.Mat); } else { Image <Bgr, Byte> buffer2 = new Image <Bgr, byte>(buffer1.Size); filter.ProcessData(buffer1.Mat, buffer2.Mat); buffer1.Dispose(); buffer1 = buffer2; } } using (Android.Graphics.Bitmap result = buffer1.ToBitmap()) { buffer1.Dispose(); _lastSavedImageFile = ProcessedCameraPreview.SaveBitmap(this, result, PackageName, _topLayer); thumbnail = ProcessedCameraPreview.GetThumbnail(result, maxThumbnailSize); } } _lastCapturedImageButton.SetImageBitmap(thumbnail); } catch (Exception excpt) { this.RunOnUiThread(() => { while (excpt.InnerException != null) { excpt = excpt.InnerException; } AlertDialog.Builder alert = new AlertDialog.Builder(this); alert.SetTitle("Error saving file"); alert.SetMessage(excpt.Message); alert.SetPositiveButton("OK", (s, er) => { }); alert.Show(); }); return; } /* * catch (FileNotFoundException e) * { * Android.Util.Log.Debug("Emgu.CV", e.Message); * } * catch (IOException e) * { * Android.Util.Log.Debug("Emgu.CV", e.Message); * } */ /* * try * { * ExifInterface exif = new ExifInterface(f.FullName); * // Read the camera model and location attributes * exif.GetAttribute(ExifInterface.TagModel); * float[] latLng = new float[2]; * exif.GetLatLong(latLng); * // Set the camera make * exif.SetAttribute(ExifInterface.TagMake, "My Phone"); * exif.SetAttribute(ExifInterface.TagDatetime, System.DateTime.Now.ToString()); * } * catch (IOException e) * { * Android.Util.Log.Debug("Emgu.CV", e.Message); * }*/ Toast.MakeText(this, "File Saved.", ToastLength.Short).Show(); camera.StartPreview(); }