///
/// Returns `true` if the brush is fully opaque otherwise false. A brush
/// is considered opaque if:
///
/// * The alpha component of the color() is 255.
/// * Its texture() does not have an alpha channel and is not a QBitmap.
/// * The colors in the gradient() all have an alpha component that is 255.
/// * It is an extended radial gradient.
Returns `true` if the brush is fully opaque otherwise false. A brush
is considered opaque if.

The alpha component of the color() is 255.
Its texture() does not have an alpha channel and is not a QBitmap.
The colors in the gradient() all have an alpha component that is 255.
It is an extended radial gradient.
Returns ` true ` if the brush is fully opaque otherwise false . A brush is considered opaque if . The alpha component of the color () is 255 . Its texture () does not have an alpha channel and is not a QBitmap . The colors in the gradient () all have an alpha component that is 255 . It is an extended radial gradient .
pub fn is_opaque(&self) -> bool {
        let (obj_data, funcs) = self.get_brush_obj_funcs();
        unsafe {
            let ret_val = ((*funcs).is_opaque)(obj_data);
            ret_val
        }
    }
pub fn is_opaque ( & self ) -> bool { let ( obj_data , funcs ) = self . get_brush_obj_funcs ( ) ; unsafe { let ret_val = ( ( * funcs ) . is_opaque ) ( obj_data ) ; ret_val } }
Returns `true` if the brush is fully opaque otherwise false.
Returns ` true ` if the brush is fully opaque otherwise false .
&self