Merge pull request #129 from danpersa/fix-128

Fix: Crop is doing resize. Closes #128

image_test.go

@@ -176,7 +176,7 @@ func TestImageCropByWidth(t *testing.T) {
 		t.Errorf("Cannot process the image: %s", err)
 	}
 
-	err = assertSize(buf, 600, 375)
+	err = assertSize(buf, 600, 1050)
 	if err != nil {
 		t.Error(err)
 	}
@@ -190,7 +190,7 @@ func TestImageCropByHeight(t *testing.T) {
 		t.Errorf("Cannot process the image: %s", err)
 	}
 
-	err = assertSize(buf, 480, 300)
+	err = assertSize(buf, 1680, 300)
 	if err != nil {
 		t.Error(err)
 	}

resize.go

@@ -401,12 +401,20 @@ func imageCalculations(o *Options, inWidth, inHeight int) float64 {
 		}
 	// Fixed width, auto height
 	case o.Width > 0:
-		factor = xfactor
-		o.Height = roundFloat(float64(inHeight) / factor)
+		if o.Crop {
+			o.Height = inHeight
+		} else {
+			factor = xfactor
+			o.Height = roundFloat(float64(inHeight) / factor)
+		}
 	// Fixed height, auto width
 	case o.Height > 0:
-		factor = yfactor
-		o.Width = roundFloat(float64(inWidth) / factor)
+		if o.Crop {
+			o.Width = inWidth
+		} else {
+			factor = yfactor
+			o.Width = roundFloat(float64(inWidth) / factor)
+		}
 	// Identity transform
 	default:
 		o.Width = inWidth