From 133c3a330c0c706b87d26dde860b785e27391334 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Wed, 4 Oct 2023 17:59:29 +0200
Subject: [PATCH] Checkpoint

---
 crates/gpui3/src/geometry.rs | 32 +++++++++++++++++++++++++++++---
 crates/gpui3/src/window.rs   | 10 ++++++++++
 2 files changed, 39 insertions(+), 3 deletions(-)

diff --git a/crates/gpui3/src/geometry.rs b/crates/gpui3/src/geometry.rs
index c7af290e61ae039889fde14cea3a1e7ed0c9be54..d60866816d6e3513929f530d2ae9bd50eb97966a 100644
--- a/crates/gpui3/src/geometry.rs
+++ b/crates/gpui3/src/geometry.rs
@@ -1,7 +1,10 @@
 use core::fmt::Debug;
 use derive_more::{Add, AddAssign, Div, Mul, Sub, SubAssign};
 use refineable::Refineable;
-use std::ops::{Add, AddAssign, Div, Mul, MulAssign, Sub, SubAssign};
+use std::{
+    cmp,
+    ops::{Add, AddAssign, Div, Mul, MulAssign, Sub, SubAssign},
+};
 
 #[derive(Refineable, Default, Add, AddAssign, Sub, SubAssign, Copy, Debug, PartialEq, Eq, Hash)]
 #[refineable(debug)]
@@ -84,7 +87,7 @@ impl<T: Clone + Debug + Div<S, Output = T>, S: Clone> Div<S> for Point<T> {
     }
 }
 
-impl<T: Clone + Debug + std::cmp::PartialOrd> Point<T> {
+impl<T: Clone + Debug + cmp::PartialOrd> Point<T> {
     pub fn max(&self, other: &Self) -> Self {
         Point {
             x: if self.x >= other.x {
@@ -99,6 +102,21 @@ impl<T: Clone + Debug + std::cmp::PartialOrd> Point<T> {
             },
         }
     }
+
+    pub fn min(&self, other: &Self) -> Self {
+        Point {
+            x: if self.x <= other.x {
+                self.x.clone()
+            } else {
+                other.x.clone()
+            },
+            y: if self.y <= other.y {
+                self.y.clone()
+            } else {
+                other.y.clone()
+            },
+        }
+    }
 }
 
 impl<T: Clone + Debug> Clone for Point<T> {
@@ -239,6 +257,14 @@ impl<T: Clone + Debug + Sub<Output = T>> Bounds<T> {
     }
 }
 
+impl<T: Clone + Debug + PartialOrd + Add<T, Output = T> + Sub<Output = T>> Bounds<T> {
+    pub fn intersect(&self, other: &Self) -> Self {
+        let upper_left = self.origin.max(&other.origin);
+        let lower_right = self.lower_right().min(&other.lower_right());
+        Self::from_corners(upper_left, lower_right)
+    }
+}
+
 impl<T, Rhs> Mul<Rhs> for Bounds<T>
 where
     T: Mul<Rhs, Output = Rhs> + Clone + Debug,
@@ -537,7 +563,7 @@ impl Mul<Pixels> for Pixels {
 impl Eq for Pixels {}
 
 impl Ord for Pixels {
-    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+    fn cmp(&self, other: &Self) -> cmp::Ordering {
         self.0.partial_cmp(&other.0).unwrap()
     }
 }
diff --git a/crates/gpui3/src/window.rs b/crates/gpui3/src/window.rs
index 12bc21d9f0e4eeed271d4b6a0f2082ea4efaba2d..b92edb8ecefee09c1a89934b0ad45eef7b615dcb 100644
--- a/crates/gpui3/src/window.rs
+++ b/crates/gpui3/src/window.rs
@@ -86,6 +86,15 @@ impl ContentMask {
             corner_radii: self.corner_radii.scale(factor),
         }
     }
+
+    pub fn intersect(&self, other: &Self) -> Self {
+        let bounds = self.bounds.intersect(&other.bounds);
+        // todo!("intersect corner radii")
+        ContentMask {
+            bounds,
+            corner_radii: self.corner_radii,
+        }
+    }
 }
 
 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -479,6 +488,7 @@ pub trait BorrowWindow: BorrowAppContext {
     fn window_mut(&mut self) -> &mut Window;
 
     fn with_content_mask<R>(&mut self, mask: ContentMask, f: impl FnOnce(&mut Self) -> R) -> R {
+        let mask = mask.intersect(&self.content_mask());
         self.window_mut().content_mask_stack.push(mask);
         let result = f(self);
         self.window_mut().content_mask_stack.pop();