89 lines
2.7 KiB
C#
89 lines
2.7 KiB
C#
using System.Collections;
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using UnityEngine;
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using UnityEngine.UI;
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namespace ImageCropperNamespace
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{
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public class ImageCropperDemo : MonoBehaviour
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{
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public RawImage croppedImageHolder;
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public Text croppedImageSize;
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public Toggle ovalSelectionInput, autoZoomInput;
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public InputField minAspectRatioInput, maxAspectRatioInput;
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public void Crop()
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{
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// If image cropper is already open, do nothing
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if( ImageCropper.Instance.IsOpen )
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return;
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StartCoroutine( TakeScreenshotAndCrop() );
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}
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private IEnumerator TakeScreenshotAndCrop()
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{
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yield return new WaitForEndOfFrame();
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bool ovalSelection = ovalSelectionInput.isOn;
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bool autoZoom = autoZoomInput.isOn;
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float minAspectRatio, maxAspectRatio;
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if( !float.TryParse( minAspectRatioInput.text, out minAspectRatio ) )
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minAspectRatio = 0f;
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if( !float.TryParse( maxAspectRatioInput.text, out maxAspectRatio ) )
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maxAspectRatio = 0f;
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Texture2D screenshot = new Texture2D( Screen.width, Screen.height, TextureFormat.RGB24, false );
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screenshot.ReadPixels( new Rect( 0, 0, Screen.width, Screen.height ), 0, 0 );
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screenshot.Apply();
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ImageCropper.Instance.Show( screenshot, ( bool result, Texture originalImage, Texture2D croppedImage ) =>
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{
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// Destroy previously cropped texture (if any) to free memory
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Destroy( croppedImageHolder.texture, 5f );
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// If screenshot was cropped successfully
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if( result )
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{
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// Assign cropped texture to the RawImage
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croppedImageHolder.enabled = true;
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croppedImageHolder.texture = croppedImage;
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Vector2 size = croppedImageHolder.rectTransform.sizeDelta;
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if( croppedImage.height <= croppedImage.width )
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size = new Vector2( 400f, 400f * ( croppedImage.height / (float) croppedImage.width ) );
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else
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size = new Vector2( 400f * ( croppedImage.width / (float) croppedImage.height ), 400f );
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croppedImageHolder.rectTransform.sizeDelta = size;
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croppedImageSize.enabled = true;
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croppedImageSize.text = "Image size: " + croppedImage.width + ", " + croppedImage.height;
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}
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else
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{
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croppedImageHolder.enabled = false;
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croppedImageSize.enabled = false;
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}
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// Destroy the screenshot as we no longer need it in this case
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Destroy( screenshot );
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},
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settings: new ImageCropper.Settings()
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{
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ovalSelection = ovalSelection,
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autoZoomEnabled = autoZoom,
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imageBackground = Color.clear, // transparent background
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selectionMinAspectRatio = minAspectRatio,
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selectionMaxAspectRatio = maxAspectRatio
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},
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croppedImageResizePolicy: ( ref int width, ref int height ) =>
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{
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// uncomment lines below to save cropped image at half resolution
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//width /= 2;
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//height /= 2;
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} );
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}
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}
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} |