feat(wm): initial commit

One week of blissful, in-the-zone coding, applying all of the lessons
learnt from the development of yatta.

komorebi-core/src/rect.rs

@@ -0,0 +1,49 @@
+use bindings::Windows::Win32::Foundation::RECT;
+
+#[derive(Debug, Clone)]
+pub struct Rect {
+    pub left: i32,
+    pub top: i32,
+    pub right: i32,
+    pub bottom: i32,
+}
+
+impl Default for Rect {
+    fn default() -> Self {
+        Rect {
+            left: 0,
+            top: 0,
+            right: 0,
+            bottom: 0,
+        }
+    }
+}
+
+impl From<RECT> for Rect {
+    fn from(rect: RECT) -> Self {
+        Rect {
+            left: rect.left,
+            top: rect.top,
+            right: rect.right - rect.left,
+            bottom: rect.bottom - rect.top,
+        }
+    }
+}
+
+impl Rect {
+    pub fn add_padding(&mut self, padding: Option<i32>) {
+        if let Some(padding) = padding {
+            self.left += padding;
+            self.top += padding;
+            self.right -= padding * 2;
+            self.bottom -= padding * 2;
+        }
+    }
+
+    pub fn contains_point(&self, point: (i32, i32)) -> bool {
+        point.0 >= self.left
+            && point.0 <= self.left + self.right
+            && point.1 >= self.top
+            && point.1 <= self.top + self.bottom
+    }
+}