Binding for set_background_color

src/wand/magick.rs

@@ -437,6 +437,15 @@ impl MagickWand {
         }
     }
 
+    /// Set the background color.
+    pub fn set_background_color(&self, pixel_wand: &PixelWand) -> Result<(), &'static str> {
+        match unsafe { bindings::MagickSetBackgroundColor(self.wand, pixel_wand.wand) } {
+            bindings::MagickBooleanType_MagickTrue => Ok(()),
+
+            _ => Err("SetBackgroundColor returned false"),
+        }
+    }
+
     /// Set the image background color.
     pub fn set_image_background_color(&self, pixel_wand: &PixelWand) -> Result<(), &'static str> {
         match unsafe { bindings::MagickSetImageBackgroundColor(self.wand, pixel_wand.wand) } {

tests/lib.rs

@@ -303,3 +303,20 @@ fn test_set_image_background_color() {
     assert_eq!(0u8, blob[1]);
     assert_eq!(255u8, blob[2]);
 }
+
+#[test]
+fn test_set_background_color() {
+    START.call_once(|| {
+        magick_wand_genesis();
+    });
+    let wand = MagickWand::new();
+    let mut pw = PixelWand::new();
+    pw.set_color("none").unwrap();
+    wand.set_background_color(&pw).unwrap();
+    assert!(wand.read_image("tests/data/rust.svg").is_ok());
+    let blob = wand.write_image_blob("rgba").unwrap();
+    assert_eq!(0u8, blob[0]);
+    assert_eq!(0u8, blob[1]);
+    assert_eq!(0u8, blob[2]);
+    assert_eq!(0u8, blob[3]);
+}