Fix three pre-existing clippy warnings

- ipc.rs: drop a u64 -> u64 no-op cast (WindowId is a plain u64 alias).
- decoration.rs: draw_line took 8 args; bundle the two endpoints into
  (i32, i32) tuples instead of four loose coordinates.
- output_management.rs: collapse a WEnum::Value if-let directly into
  the outer SetTransform match arm's pattern.

2 files changed, 12 insertions, 13 deletions

diff --git a/crates/wayland/src/decoration.rs b/crates/wayland/src/decoration.rs
index 4aa0b2d..2888d69 100644
--- a/crates/wayland/src/decoration.rs
+++ b/crates/wayland/src/decoration.rs
@@ -426,8 +426,9 @@ fn button_box(width: usize, height: usize, right_offset: usize) -> (i32, i32, i3
 }
 
 /// Bresenham line, since none of these icons need anything fancier.
-fn draw_line(buf: &mut [u8], width: usize, height: usize, x0: i32, y0: i32, x1: i32, y1: i32, color: (u8, u8, u8)) {
-    let (mut x0, mut y0) = (x0, y0);
+fn draw_line(buf: &mut [u8], width: usize, height: usize, from: (i32, i32), to: (i32, i32), color: (u8, u8, u8)) {
+    let (mut x0, mut y0) = from;
+    let (x1, y1) = to;
     let dx = (x1 - x0).abs();
     let dy = -(y1 - y0).abs();
     let sx = if x0 < x1 { 1 } else { -1 };
@@ -452,21 +453,21 @@ fn draw_line(buf: &mut [u8], width: usize, height: usize, x0: i32, y0: i32, x1:
 
 fn draw_close_icon(buf: &mut [u8], width: usize, height: usize, right_offset: usize, color: (u8, u8, u8)) {
     let (x0, y0, x1, y1) = button_box(width, height, right_offset);
-    draw_line(buf, width, height, x0, y0, x1, y1, color);
-    draw_line(buf, width, height, x0, y1, x1, y0, color);
+    draw_line(buf, width, height, (x0, y0), (x1, y1), color);
+    draw_line(buf, width, height, (x0, y1), (x1, y0), color);
 }
 
 fn draw_maximize_icon(buf: &mut [u8], width: usize, height: usize, right_offset: usize, color: (u8, u8, u8)) {
     let (x0, y0, x1, y1) = button_box(width, height, right_offset);
-    draw_line(buf, width, height, x0, y0, x1, y0, color);
-    draw_line(buf, width, height, x0, y1, x1, y1, color);
-    draw_line(buf, width, height, x0, y0, x0, y1, color);
-    draw_line(buf, width, height, x1, y0, x1, y1, color);
+    draw_line(buf, width, height, (x0, y0), (x1, y0), color);
+    draw_line(buf, width, height, (x0, y1), (x1, y1), color);
+    draw_line(buf, width, height, (x0, y0), (x0, y1), color);
+    draw_line(buf, width, height, (x1, y0), (x1, y1), color);
 }
 
 fn draw_minimize_icon(buf: &mut [u8], width: usize, height: usize, right_offset: usize, color: (u8, u8, u8)) {
     let (x0, _, x1, y1) = button_box(width, height, right_offset);
-    draw_line(buf, width, height, x0, y1, x1, y1, color);
+    draw_line(buf, width, height, (x0, y1), (x1, y1), color);
 }
 
 #[allow(clippy::too_many_arguments)]
diff --git a/crates/wayland/src/output_management.rs b/crates/wayland/src/output_management.rs
index 4697a40..7849557 100644
--- a/crates/wayland/src/output_management.rs
+++ b/crates/wayland/src/output_management.rs
@@ -215,10 +215,8 @@ impl Dispatch<ZwlrOutputConfigurationHeadV1, ConfigurationHeadData> for CompStat
         match request {
             zwlr_output_configuration_head_v1::Request::SetPosition { x, y } => *position = Some((x, y)),
             zwlr_output_configuration_head_v1::Request::SetScale { scale: s } => *scale = Some(s),
-            zwlr_output_configuration_head_v1::Request::SetTransform { transform: t } => {
-                if let WEnum::Value(t) = t {
-                    *transform = Some(wl_transform_to_smithay(t));
-                }
+            zwlr_output_configuration_head_v1::Request::SetTransform { transform: WEnum::Value(t) } => {
+                *transform = Some(wl_transform_to_smithay(t));
             }
             zwlr_output_configuration_head_v1::Request::SetMode { mode: mode_obj } => {
                 if let Some(m) = mode_obj.data::<ModeData>() {