Exemple #1
0
        protected override void OnAttached()
        {
            if (Container is NSView)
            {
                var control = (Container as NSView);

                control.WantsLayer = true;
                control.LayerUsesCoreImageFilters = true;
                filter = CIFilter.FromName("CIGaussianBlur");
                filter.SetDefaults();
            }
        }
        void ApplyFilter(CIFilter filter)
        {
            // Prepare the options to pass when requesting to edit the image.
            var options = new PHContentEditingInputRequestOptions();

            options.SetCanHandleAdjustmentDataHandler(adjustmentData => {
                bool result = false;
                InvokeOnMainThread(() => {
                    result = adjustmentData.FormatIdentifier == AdjustmentFormatIdentifier && adjustmentData.FormatVersion == "1.0";
                });

                return(result);
            });

            Asset.RequestContentEditingInput(options, (contentEditingInput, requestStatusInfo) => {
                // Create a CIImage from the full image representation.
                var url         = contentEditingInput.FullSizeImageUrl;
                int orientation = (int)contentEditingInput.FullSizeImageOrientation;
                var inputImage  = CIImage.FromUrl(url);
                inputImage      = inputImage.CreateWithOrientation((CIImageOrientation)orientation);

                // Create the filter to apply.
                filter.SetDefaults();
                filter.Image = inputImage;

                // Apply the filter.
                CIImage outputImage = filter.OutputImage;

                // Create a PHAdjustmentData object that describes the filter that was applied.
                var adjustmentData = new PHAdjustmentData(
                    AdjustmentFormatIdentifier,
                    "1.0",
                    NSData.FromString(filter.Name, NSStringEncoding.UTF8)
                    );

                var contentEditingOutput = new PHContentEditingOutput(contentEditingInput);
                NSData jpegData          = outputImage.GetJpegRepresentation(0.9f);
                jpegData.Save(contentEditingOutput.RenderedContentUrl, true);
                contentEditingOutput.AdjustmentData = adjustmentData;

                // Ask the shared PHPhotoLinrary to perform the changes.
                PHPhotoLibrary.SharedPhotoLibrary.PerformChanges(() => {
                    var request = PHAssetChangeRequest.ChangeRequest(Asset);
                    request.ContentEditingOutput = contentEditingOutput;
                }, (success, error) => {
                    if (!success)
                    {
                        Console.WriteLine("Error: {0}", error.LocalizedDescription);
                    }
                });
            });
        }
		void ApplyFilter (CIFilter filter)
		{
			// Prepare the options to pass when requesting to edit the image.
			var options = new PHContentEditingInputRequestOptions ();
			options.SetCanHandleAdjustmentDataHandler (adjustmentData => {
				bool result = false;
				InvokeOnMainThread (() => {
					result = adjustmentData.FormatIdentifier == AdjustmentFormatIdentifier && adjustmentData.FormatVersion == "1.0";
				});

				return result;
			});

			Asset.RequestContentEditingInput (options,(contentEditingInput, requestStatusInfo) => {
				// Create a CIImage from the full image representation.
				var url = contentEditingInput.FullSizeImageUrl;
				int orientation = (int)contentEditingInput.FullSizeImageOrientation;
				var inputImage = CIImage.FromUrl (url);
				inputImage = inputImage.CreateWithOrientation ((CIImageOrientation)orientation);

				// Create the filter to apply.
				filter.SetDefaults ();
				filter.Image = inputImage;

				// Apply the filter.
				CIImage outputImage = filter.OutputImage;

				// Create a PHAdjustmentData object that describes the filter that was applied.
				var adjustmentData = new PHAdjustmentData (
					AdjustmentFormatIdentifier,
					"1.0",
					NSData.FromString (filter.Name, NSStringEncoding.UTF8)
				);

				var contentEditingOutput = new PHContentEditingOutput (contentEditingInput);
				NSData jpegData = outputImage.GetJpegRepresentation (0.9f);
				jpegData.Save (contentEditingOutput.RenderedContentUrl, true);
				contentEditingOutput.AdjustmentData = adjustmentData;

				// Ask the shared PHPhotoLinrary to perform the changes.
				PHPhotoLibrary.SharedPhotoLibrary.PerformChanges (() => {
					var request = PHAssetChangeRequest.ChangeRequest (Asset);
						request.ContentEditingOutput = contentEditingOutput;
					}, (success, error) => {
					if (!success)
						Console.WriteLine ("Error: {0}", error.LocalizedDescription);
				});
			});
		}