pkg/macos: starting frames

pkg/macos/text/frame.zig

@@ -0,0 +1,29 @@
+const std = @import("std");
+const assert = std.debug.assert;
+const Allocator = std.mem.Allocator;
+const foundation = @import("../foundation.zig");
+const graphics = @import("../graphics.zig");
+const text = @import("../text.zig");
+const c = @import("c.zig");
+
+pub const Frame = opaque {
+    pub fn release(self: *Frame) void {
+        foundation.CFRelease(self);
+    }
+
+    pub fn getLineOrigins(
+        self: *Frame,
+        range: foundation.Range,
+        points: []graphics.Point,
+    ) void {
+        c.CTFrameGetLineOrigins(
+            @ptrCast(c.CTFrameRef, self),
+            @bitCast(c.CFRange, range),
+            @ptrCast(*c.CGPoint, points.ptr),
+        );
+    }
+};
+
+test {
+    // See framesetter tests...
+}