From 3c7bbf65c4cc7c09edb244284659b7caca4fc447 Mon Sep 17 00:00:00 2001
From: Victor Brekenfeld <github@drakulix.de>
Date: Sat, 27 Nov 2021 20:51:32 +0100
Subject: [PATCH] utils: Add Rectangle::to_i32_* variants

---
 CHANGELOG.md          |  4 ++++
 src/utils/geometry.rs | 23 +++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e66d0da..21982a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,10 @@
 - The button code for a `PointerButtonEvent` may now be obtained using `PointerButtonEvent::button_code`. 
 - `Renderer` now allows texture filtering methods to be set.
 
+#### Utils
+
+- `Rectangle` can now also be converted from f64 to i32 variants
+
 ### Bugfixes
 
 #### Clients & Protocols
diff --git a/src/utils/geometry.rs b/src/utils/geometry.rs
index 80b6823..3bb5823 100644
--- a/src/utils/geometry.rs
+++ b/src/utils/geometry.rs
@@ -725,6 +725,29 @@ impl<N: Coordinate, Kind> Rectangle<N, Kind> {
     }
 }
 
+impl<Kind> Rectangle<f64, Kind> {
+    /// Convert to i32 for integer-space manipulations by rounding float values
+    #[inline]
+    pub fn to_i32_round<N: Coordinate>(self) -> Rectangle<N, Kind> {
+        Rectangle {
+            loc: self.loc.to_i32_round(),
+            size: self.size.to_i32_round(),
+        }
+    }
+
+    /// Convert to i32 by returning the largest integer-space rectangle fitting into the float-based rectangle
+    #[inline]
+    pub fn to_i32_down<N: Coordinate>(self) -> Rectangle<N, Kind> {
+        Rectangle::from_extemities(self.loc.to_i32_ceil(), (self.loc + self.size).to_i32_floor())
+    }
+
+    /// Convert to i32 by returning the smallest integet-space rectangle encapsulating the float-based rectangle
+    #[inline]
+    pub fn to_i32_up<N: Coordinate>(self) -> Rectangle<N, Kind> {
+        Rectangle::from_extemities(self.loc.to_i32_floor(), (self.loc + self.size).to_i32_ceil())
+    }
+}
+
 impl<N: Coordinate, Kind> Rectangle<N, Kind> {
     /// Create a new [`Rectangle`] from the coordinates of its top-left corner and its dimensions
     #[inline]