Remove some debug asserts (#4826)

* Closes https://github.com/emilk/egui/issues/4825

crates/ecolor/src/color32.rs

@@ -201,7 +201,7 @@ impl Color32 {
     /// This is perceptually even, and faster that [`Self::linear_multiply`].
     #[inline]
     pub fn gamma_multiply(self, factor: f32) -> Self {
-        debug_assert!(0.0 <= factor && factor <= 1.0);
+        debug_assert!(0.0 <= factor && factor.is_finite());
         let Self([r, g, b, a]) = self;
         Self([
             (r as f32 * factor + 0.5) as u8,
@@ -217,7 +217,7 @@ impl Color32 {
     /// You likely want to use [`Self::gamma_multiply`] instead.
     #[inline]
     pub fn linear_multiply(self, factor: f32) -> Self {
-        debug_assert!(0.0 <= factor && factor <= 1.0);
+        debug_assert!(0.0 <= factor && factor.is_finite());
         // As an unfortunate side-effect of using premultiplied alpha
         // we need a somewhat expensive conversion to linear space and back.
         Rgba::from(self).multiply(factor).into()

crates/egui/src/layout.rs

@@ -417,7 +417,6 @@ impl Layout {
 
     pub(crate) fn region_from_max_rect(&self, max_rect: Rect) -> Region {
         debug_assert!(!max_rect.any_nan());
-        debug_assert!(max_rect.is_finite());
         let mut region = Region {
             min_rect: Rect::NOTHING, // temporary
             max_rect,
@@ -452,7 +451,6 @@ impl Layout {
     fn available_from_cursor_max_rect(&self, cursor: Rect, max_rect: Rect) -> Rect {
         debug_assert!(!cursor.any_nan());
         debug_assert!(!max_rect.any_nan());
-        debug_assert!(max_rect.is_finite());
 
         // NOTE: in normal top-down layout the cursor has moved below the current max_rect,
         // but the available shouldn't be negative.

crates/egui/src/placer.rs

@@ -106,7 +106,10 @@ impl Placer {
     /// This is what you then pass to `advance_after_rects`.
     /// Use `justify_and_align` to get the inner `widget_rect`.
     pub(crate) fn next_space(&self, child_size: Vec2, item_spacing: Vec2) -> Rect {
-        debug_assert!(child_size.is_finite() && child_size.x >= 0.0 && child_size.y >= 0.0);
+        debug_assert!(
+            0.0 <= child_size.x && 0.0 <= child_size.y,
+            "Negative child size: {child_size:?}"
+        );
         self.region.sanity_check();
         if let Some(grid) = &self.grid {
             grid.next_cell(self.region.cursor, child_size)

crates/egui/src/ui.rs

@@ -1144,6 +1144,7 @@ impl Ui {
     }
 
     /// Allocated the given rectangle and then adds content to that rectangle.
+    ///
     /// If the contents overflow, more space will be allocated.
     /// When finished, the amount of space actually used (`min_rect`) will be allocated.
     /// So you can request a lot of space and then use less.
@@ -2607,7 +2608,7 @@ impl Ui {
     /// });
     /// # });
     /// ```
-    ///     
+    ///
     ///
     /// See also: [`Self::close_menu`] and [`Response::context_menu`].
     #[inline]