do not upscale image

DavidWiesner · DavidWiesner · commit cee3342dfcd6 · 2018-05-18T16:43:04.000+02:00
diff --git a/src/ios/UIImage+CropScaleOrientation.m b/src/ios/UIImage+CropScaleOrientation.m
@@ -151,6 +151,10 @@ - (UIImage*)imageByScalingNotCroppingForSize:(CGSize)targetSize
         } else {
             scaleFactor = widthFactor; // scale to fit width
         }
+        if (scaleFactor > 1.0) {
+            // do not upscale image
+            return nil;
+        }
         scaledSize = CGSizeMake(MIN(width * scaleFactor, targetWidth), MIN(height * scaleFactor, targetHeight));
     }
     

Original file line number	Diff line number	Diff line change
`@@ -151,6 +151,10 @@ - (UIImage*)imageByScalingNotCroppingForSize:(CGSize)targetSize`
`151`	`151`	`} else {`
`152`	`152`	`scaleFactor = widthFactor; // scale to fit width`
`153`	`153`	`}`
	`154`	`+ if (scaleFactor > 1.0) {`
	`155`	`+ // do not upscale image`
	`156`	`+ return nil;`
	`157`	`+ }`
`154`	`158`	`scaledSize = CGSizeMake(MIN(width * scaleFactor, targetWidth), MIN(height * scaleFactor, targetHeight));`
`155`	`159`	`}`
`156`	`160`