swf: Derive Hash for Gradient and associated types

swf/src/types.rs

@@ -762,7 +762,7 @@ pub enum FillStyle {
     },
 }
 
-#[derive(Clone, Debug, Eq, PartialEq)]
+#[derive(Clone, Debug, Eq, PartialEq, Hash)]
 pub struct Gradient {
     pub matrix: Matrix,
     pub spread: GradientSpread,
@@ -770,7 +770,7 @@ pub struct Gradient {
     pub records: Vec<GradientRecord>,
 }
 
-#[derive(Clone, Copy, Debug, Eq, FromPrimitive, PartialEq, Enum)]
+#[derive(Clone, Copy, Debug, Eq, FromPrimitive, PartialEq, Enum, Hash)]
 pub enum GradientSpread {
     Pad = 0,
     Reflect = 1,
@@ -788,7 +788,7 @@ impl GradientSpread {
     }
 }
 
-#[derive(Clone, Copy, Debug, Eq, FromPrimitive, PartialEq)]
+#[derive(Clone, Copy, Debug, Eq, FromPrimitive, PartialEq, Hash)]
 pub enum GradientInterpolation {
     Rgb = 0,
     LinearRgb = 1,
@@ -805,7 +805,7 @@ impl GradientInterpolation {
     }
 }
 
-#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
+#[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Hash)]
 pub struct GradientRecord {
     pub ratio: u8,
     pub color: Color,

swf/src/types/color.rs

@@ -1,7 +1,7 @@
 /// An RGBA (red, green, blue, alpha) color.
 ///
 /// All components are stored as [`u8`] and have a color range of 0-255.
-#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
+#[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Hash)]
 pub struct Color {
     /// The red component value.
     pub r: u8,

swf/src/types/fixed.rs

@@ -19,7 +19,7 @@ macro_rules! define_fixed {
         into_float($($into_type:path),*)
     ) => {
         /// A signed fixed-point value with $frac_bits bits.
-        #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
+        #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
         pub struct $type_name($underlying_type);
 
         /// A signed fixed-point type.

swf/src/types/matrix.rs

@@ -15,7 +15,7 @@ use std::ops;
 /// This means that objects in Flash can only move in units of twips, or 1/20 pixels.
 ///
 /// [SWF19 pp.22-24](https://web.archive.org/web/20220205011833if_/https://www.adobe.com/content/dam/acom/en/devnet/pdf/swf-file-format-spec.pdf#page=22)
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
 pub struct Matrix {
     /// The matrix element at `[0, 0]`. Labeled `ScaleX` in SWF19.
     pub a: Fixed16,

swf/src/types/twips.rs

@@ -15,7 +15,7 @@
 /// 40,000 twips, or `4*10^4` . If you then have two such numbers,
 /// multiplying them as part of calculations yields `16*10^8`, which is
 /// relatively close to the upper limit of `i32` at about `2*10^9`.
-#[derive(Clone, Copy, Debug, Default, Eq, Ord, PartialEq, PartialOrd)]
+#[derive(Clone, Copy, Debug, Default, Eq, Ord, PartialEq, PartialOrd, Hash)]
 pub struct Twips(i32);
 
 impl Twips {