From a8c3a135701a7b64db0a88ec353a392f402d2a87 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Fri, 5 Jul 2024 20:17:19 +0200
Subject: [PATCH] math/region: add expand

---
 include/hyprutils/math/Region.hpp |  1 +
 src/math/Region.cpp               | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/hyprutils/math/Region.hpp b/include/hyprutils/math/Region.hpp
index 856489b..f7589f2 100644
--- a/include/hyprutils/math/Region.hpp
+++ b/include/hyprutils/math/Region.hpp
@@ -49,6 +49,7 @@ namespace Hyprutils {
             CRegion&                    invert(const CBox& box);
             CRegion&                    scale(float scale);
             CRegion&                    scale(const Vector2D& scale);
+            CRegion&                    expand(double units);
             CRegion&                    rationalize();
             CBox                        getExtents();
             bool                        containsPoint(const Vector2D& vec) const;
diff --git a/src/math/Region.cpp b/src/math/Region.cpp
index 81eda8b..e69ddb8 100644
--- a/src/math/Region.cpp
+++ b/src/math/Region.cpp
@@ -112,6 +112,19 @@ CRegion& Hyprutils::Math::CRegion::transform(const eTransform t, double w, doubl
     return *this;
 }
 
+CRegion& Hyprutils::Math::CRegion::expand(double units) {
+    auto rects = getRects();
+
+    clear();
+
+    for (auto& r : rects) {
+        CBox b{(double)r.x1 - units, (double)r.y1 - units, (double)r.x2 - r.x1 + units * 2, (double)r.y2 - r.y1 + units * 2};
+        add(b);
+    }
+
+    return *this;
+}
+
 CRegion& Hyprutils::Math::CRegion::rationalize() {
     intersect(CBox{-MAX_REGION_SIDE, -MAX_REGION_SIDE, MAX_REGION_SIDE * 2, MAX_REGION_SIDE * 2});
     return *this;