From 8870068f27845031037fa2d23b4226e29a126290 Mon Sep 17 00:00:00 2001
From: 5ohue <86558263+5ohue@users.noreply.github.com>
Date: Sat, 11 May 2024 14:08:59 +0300
Subject: [PATCH] Add `DisposeType` type

---
 src/types/dispose_type.rs | 43 +++++++++++++++++++++++++++++++++++++++
 src/types/mod.rs          |  2 ++
 src/wand/magick.rs        |  3 ++-
 3 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 src/types/dispose_type.rs

diff --git a/src/types/dispose_type.rs b/src/types/dispose_type.rs
new file mode 100644
index 0000000..46c632a
--- /dev/null
+++ b/src/types/dispose_type.rs
@@ -0,0 +1,43 @@
+use crate::bindings;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[repr(u32)]
+pub enum DisposeType {
+    /*
+     * Identical to `Undefined`
+     */
+    // Unrecognized = bindings::DisposeType_UnrecognizedDispose,
+    Undefined    = bindings::DisposeType_UndefinedDispose,
+    None         = bindings::DisposeType_NoneDispose,
+    Background   = bindings::DisposeType_BackgroundDispose,
+    Previous     = bindings::DisposeType_PreviousDispose,
+}
+
+impl Default for DisposeType {
+    fn default() -> Self {
+        return DisposeType::Undefined;
+    }
+}
+
+impl From<DisposeType> for bindings::DisposeType {
+    fn from(value: DisposeType) -> Self {
+        return value as bindings::DisposeType;
+    }
+}
+
+impl From<bindings::DisposeType> for DisposeType {
+    fn from(value: bindings::DisposeType) -> Self {
+        /*
+         * SAFETY:
+         *
+         * `DisposeType` has the same repr as `bindings::DisposeType` - u32
+         *
+         * If `value` is less than Previous than it is in the vaild range and can be safely
+         * reinterpreted as `DisposeType`
+         */
+        if value <= bindings::DisposeType_PreviousDispose {
+            return unsafe { std::mem::transmute(value) };
+        }
+        return DisposeType::default();
+    }
+}
diff --git a/src/types/mod.rs b/src/types/mod.rs
index 463620c..5f01a35 100644
--- a/src/types/mod.rs
+++ b/src/types/mod.rs
@@ -2,6 +2,7 @@ mod alpha_channel_option;
 mod colorspace_type;
 mod composite_operator;
 mod compression_type;
+mod dispose_type;
 mod dither_method;
 mod filter_type;
 mod gravity_type;
@@ -13,6 +14,7 @@ pub use self::alpha_channel_option::AlphaChannelOption;
 pub use self::colorspace_type::ColorspaceType;
 pub use self::composite_operator::CompositeOperator;
 pub use self::compression_type::CompressionType;
+pub use self::dispose_type::DisposeType;
 pub use self::dither_method::DitherMethod;
 pub use self::filter_type::FilterType;
 pub use self::gravity_type::GravityType;
diff --git a/src/wand/magick.rs b/src/wand/magick.rs
index 827deaf..5758dca 100644
--- a/src/wand/magick.rs
+++ b/src/wand/magick.rs
@@ -35,6 +35,7 @@ use crate::{
     ColorspaceType,
     CompositeOperator,
     CompressionType,
+    DisposeType,
     DitherMethod,
     FilterType,
     GravityType,
@@ -1181,7 +1182,7 @@ impl MagickWand {
         get_image_compression_quality,   set_image_compression_quality,   MagickGetImageCompressionQuality,  MagickSetImageCompressionQuality, usize
         get_image_delay,                 set_image_delay,                 MagickGetImageDelay,               MagickSetImageDelay,              usize
         get_image_depth,                 set_image_depth,                 MagickGetImageDepth,               MagickSetImageDepth,              usize
-        get_image_dispose,               set_image_dispose,               MagickGetImageDispose,             MagickSetImageDispose,            bindings::DisposeType
+        get_image_dispose,               set_image_dispose,               MagickGetImageDispose,             MagickSetImageDispose,            DisposeType
         get_image_endian,                set_image_endian,                MagickGetImageEndian,              MagickSetImageEndian,             bindings::EndianType
         get_image_fuzz,                  set_image_fuzz,                  MagickGetImageFuzz,                MagickSetImageFuzz,               f64
         get_image_gamma,                 set_image_gamma,                 MagickGetImageGamma,               MagickSetImageGamma,              f64