Fix some lints found by clippy 1.73

crates/egui/src/containers/resize.rs

@@ -332,12 +332,12 @@ impl Resize {
 
 use epaint::Stroke;
 
-pub fn paint_resize_corner(ui: &mut Ui, response: &Response) {
+pub fn paint_resize_corner(ui: &Ui, response: &Response) {
     let stroke = ui.style().interact(response).fg_stroke;
     paint_resize_corner_with_style(ui, &response.rect, stroke, Align2::RIGHT_BOTTOM);
 }
 
-pub fn paint_resize_corner_with_style(ui: &mut Ui, rect: &Rect, stroke: Stroke, corner: Align2) {
+pub fn paint_resize_corner_with_style(ui: &Ui, rect: &Rect, stroke: Stroke, corner: Align2) {
     let painter = ui.painter();
     let cp = painter.round_pos_to_pixels(corner.pos_in_rect(rect));
     let mut w = 2.0;

crates/egui/src/containers/window.rs

@@ -429,7 +429,7 @@ impl<'open> Window<'open> {
                 .map_or((None, None), |ir| (Some(ir.inner), Some(ir.response)));
 
             let outer_rect = frame.end(&mut area_content_ui).rect;
-            paint_resize_corner(&mut area_content_ui, &possible, outer_rect, frame_stroke);
+            paint_resize_corner(&area_content_ui, &possible, outer_rect, frame_stroke);
 
             // END FRAME --------------------------------
 
@@ -448,7 +448,7 @@ impl<'open> Window<'open> {
 
             if let Some(interaction) = interaction {
                 paint_frame_interaction(
-                    &mut area_content_ui,
+                    &area_content_ui,
                     outer_rect,
                     interaction,
                     ctx.style().visuals.widgets.active,
@@ -456,7 +456,7 @@ impl<'open> Window<'open> {
             } else if let Some(hover_interaction) = hover_interaction {
                 if ctx.input(|i| i.pointer.has_pointer()) {
                     paint_frame_interaction(
-                        &mut area_content_ui,
+                        &area_content_ui,
                         outer_rect,
                         hover_interaction,
                         ctx.style().visuals.widgets.hovered,
@@ -476,12 +476,7 @@ impl<'open> Window<'open> {
     }
 }
 
-fn paint_resize_corner(
-    ui: &mut Ui,
-    possible: &PossibleInteractions,
-    outer_rect: Rect,
-    stroke: Stroke,
-) {
+fn paint_resize_corner(ui: &Ui, possible: &PossibleInteractions, outer_rect: Rect, stroke: Stroke) {
     let corner = if possible.resize_right && possible.resize_bottom {
         Align2::RIGHT_BOTTOM
     } else if possible.resize_left && possible.resize_bottom {
@@ -758,7 +753,7 @@ fn resize_hover(
 
 /// Fill in parts of the window frame when we resize by dragging that part
 fn paint_frame_interaction(
-    ui: &mut Ui,
+    ui: &Ui,
     rect: Rect,
     interaction: WindowInteraction,
     visuals: style::WidgetVisuals,

crates/egui/src/context.rs

@@ -1284,7 +1284,7 @@ impl Context {
         });
 
         #[cfg_attr(not(feature = "accesskit"), allow(unused_mut))]
-        let mut platform_output: PlatformOutput = self.output_mut(|o| std::mem::take(o));
+        let mut platform_output: PlatformOutput = self.output_mut(std::mem::take);
 
         #[cfg(feature = "accesskit")]
         {

crates/egui/src/grid.rs

@@ -221,7 +221,7 @@ impl GridLayout {
         self.col += 1;
     }
 
-    fn paint_row(&mut self, cursor: &mut Rect, painter: &Painter) {
+    fn paint_row(&mut self, cursor: &Rect, painter: &Painter) {
         // handle row color painting based on color-picker function
         let Some(color_picker) = self.color_picker.as_ref() else {
             return;
@@ -433,9 +433,9 @@ impl Grid {
 
                 // paint first incoming row
                 if is_color {
-                    let mut cursor = ui.cursor();
+                    let cursor = ui.cursor();
                     let painter = ui.painter();
-                    grid.paint_row(&mut cursor, painter);
+                    grid.paint_row(&cursor, painter);
                 }
 
                 ui.set_grid(grid);

crates/egui/src/menu.rs

@@ -608,7 +608,7 @@ impl MenuState {
     }
 
     /// Sense button interaction opening and closing submenu.
-    fn submenu_button_interaction(&mut self, ui: &mut Ui, sub_id: Id, button: &Response) {
+    fn submenu_button_interaction(&mut self, ui: &Ui, sub_id: Id, button: &Response) {
         let pointer = ui.input(|i| i.pointer.clone());
         let open = self.is_open(sub_id);
         if self.moving_towards_current_submenu(&pointer) {

crates/egui/src/widgets/color_picker.rs

@@ -317,7 +317,7 @@ fn color_picker_hsvag_2d(ui: &mut Ui, hsva: &mut HsvaGamma, alpha: Alpha) {
     color_slider_2d(ui, s, v, |s, v| HsvaGamma { s, v, ..opaque }.into());
 }
 
-//// Shows a color picker where the user can change the given [`Hsva`] color.
+/// Shows a color picker where the user can change the given [`Hsva`] color.
 ///
 /// Returns `true` on change.
 pub fn color_picker_hsva_2d(ui: &mut Ui, hsva: &mut Hsva, alpha: Alpha) -> bool {

crates/egui/src/widgets/image.rs

@@ -269,7 +269,7 @@ impl<'a> Image<'a> {
         self.size.calc_size(available_size, original_image_size)
     }
 
-    pub fn load_and_calc_size(&self, ui: &mut Ui, available_size: Vec2) -> Option<Vec2> {
+    pub fn load_and_calc_size(&self, ui: &Ui, available_size: Vec2) -> Option<Vec2> {
         let image_size = self.load_for_size(ui.ctx(), available_size).ok()?.size()?;
         Some(self.size.calc_size(available_size, image_size))
     }
@@ -317,7 +317,7 @@ impl<'a> Image<'a> {
     /// # });
     /// ```
     #[inline]
-    pub fn paint_at(&self, ui: &mut Ui, rect: Rect) {
+    pub fn paint_at(&self, ui: &Ui, rect: Rect) {
         paint_texture_load_result(
             ui,
             &self.load_for_size(ui.ctx(), rect.size()),

crates/egui/src/widgets/slider.rs

@@ -548,7 +548,7 @@ impl<'a> Slider<'a> {
     }
 
     /// Just the slider, no text
-    fn slider_ui(&mut self, ui: &mut Ui, response: &Response) {
+    fn slider_ui(&mut self, ui: &Ui, response: &Response) {
         let rect = &response.rect;
         let position_range = self.position_range(rect);
 

crates/egui/src/widgets/text_edit/builder.rs

@@ -876,7 +876,7 @@ fn ccursor_from_accesskit_text_position(
 /// Check for (keyboard) events to edit the cursor and/or text.
 #[allow(clippy::too_many_arguments)]
 fn events(
-    ui: &mut crate::Ui,
+    ui: &crate::Ui,
     state: &mut TextEditState,
     text: &mut dyn TextBuffer,
     galley: &mut Arc<Galley>,
@@ -1089,7 +1089,7 @@ fn events(
 // ----------------------------------------------------------------------------
 
 fn paint_cursor_selection(
-    ui: &mut Ui,
+    ui: &Ui,
     painter: &Painter,
     pos: Pos2,
     galley: &Galley,
@@ -1131,7 +1131,7 @@ fn paint_cursor_selection(
 }
 
 fn paint_cursor_end(
-    ui: &mut Ui,
+    ui: &Ui,
     row_height: f32,
     painter: &Painter,
     pos: Pos2,

crates/egui_demo_app/src/backend_panel.rs

@@ -62,7 +62,7 @@ pub struct BackendPanel {
 }
 
 impl BackendPanel {
-    pub fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
+    pub fn update(&mut self, ctx: &egui::Context, frame: &eframe::Frame) {
         self.frame_history
             .on_new_frame(ctx.input(|i| i.time), frame.info().cpu_usage);
 

crates/epaint/src/text/text_layout.rs

@@ -665,7 +665,7 @@ fn tessellate_row(
     point_scale: PointScale,
     job: &LayoutJob,
     format_summary: &FormatSummary,
-    row: &mut Row,
+    row: &Row,
 ) -> RowVisuals {
     if row.glyphs.is_empty() {
         return Default::default();