Do not resize on 0 h or h returned from termsize

Author: hilli

print_image.go

@@ -77,6 +77,8 @@ func PrintImage(img *image.Image, filename string, imageSize int64) error {
 		img2 = resize.Resize(uint(size), 0, img2, resize.NearestNeighbor)
 	case 'y':
 		img2 = resize.Resize(0, uint(size), img2, resize.NearestNeighbor)
+	case '0':
+		// Do nothing
 	}
 
 	newWidth := img2.Bounds().Max.X

resize_constraints.go

@@ -8,6 +8,10 @@ func resizeConstraints(imageBounds image.Rectangle, maxHeight, maxWidth int) (si
 	imgHeight := imageBounds.Dy()
 	imgWidth := imageBounds.Dx()
 
+	if maxHeight == 0 || maxWidth == 0 {
+		return 0, '0' // Don't resize
+	}
+
 	if imgHeight <= maxHeight && imgWidth <= maxWidth {
 		return 0, '0' // Don't resize
 	}