source code

libs/scrap/src/quartz/display.rs

@@ -0,0 +1,63 @@
+use std::mem;
+
+use super::ffi::*;
+
+#[derive(PartialEq, Eq, Debug, Clone, Copy)]
+#[repr(C)]
+pub struct Display(u32);
+
+impl Display {
+    pub fn primary() -> Display {
+        Display(unsafe { CGMainDisplayID() })
+    }
+
+    pub fn online() -> Result<Vec<Display>, CGError> {
+        unsafe {
+            let mut arr: [u32; 16] = mem::MaybeUninit::uninit().assume_init();
+            let mut len: u32 = 0;
+
+            match CGGetOnlineDisplayList(16, arr.as_mut_ptr(), &mut len) {
+                CGError::Success => (),
+                x => return Err(x),
+            }
+
+            let mut res = Vec::with_capacity(16);
+            for i in 0..len as usize {
+                res.push(Display(*arr.get_unchecked(i)));
+            }
+            Ok(res)
+        }
+    }
+
+    pub fn id(self) -> u32 {
+        self.0
+    }
+
+    pub fn width(self) -> usize {
+        unsafe { CGDisplayPixelsWide(self.0) }
+    }
+
+    pub fn height(self) -> usize {
+        unsafe { CGDisplayPixelsHigh(self.0) }
+    }
+
+    pub fn is_builtin(self) -> bool {
+        unsafe { CGDisplayIsBuiltin(self.0) != 0 }
+    }
+
+    pub fn is_primary(self) -> bool {
+        unsafe { CGDisplayIsMain(self.0) != 0 }
+    }
+
+    pub fn is_active(self) -> bool {
+        unsafe { CGDisplayIsActive(self.0) != 0 }
+    }
+
+    pub fn is_online(self) -> bool {
+        unsafe { CGDisplayIsOnline(self.0) != 0 }
+    }
+
+    pub fn bounds(self) -> CGRect {
+        unsafe { CGDisplayBounds(self.0) }
+    }
+}