feat: finish ghostty pane backend integration

1 files changed, 30 insertions, 0 deletions

diff --git a/vendor/libghostty-vt/pkg/harfbuzz/coretext.zig b/vendor/libghostty-vt/pkg/harfbuzz/coretext.zig
new file mode 100644
index 00000000..73042624
--- /dev/null
+++ b/vendor/libghostty-vt/pkg/harfbuzz/coretext.zig
@@ -0,0 +1,30 @@
+const macos = @import("macos");
+const std = @import("std");
+const c = @import("c.zig").c;
+const Face = @import("face.zig").Face;
+const Font = @import("font.zig").Font;
+const Error = @import("errors.zig").Error;
+
+// Use custom extern functions so that the proper CoreText structs are used
+// without a ptrcast.
+extern fn hb_coretext_font_create(ct_face: *macos.text.Font) ?*c.hb_font_t;
+
+/// Creates an hb_font_t font object from the specified CTFontRef.
+pub fn createFont(face: *macos.text.Font) Error!Font {
+    const handle = hb_coretext_font_create(face) orelse return Error.HarfbuzzFailed;
+    return Font{ .handle = handle };
+}
+
+test {
+    if (!@hasDecl(c, "hb_coretext_font_create")) return error.SkipZigTest;
+
+    const name = try macos.foundation.String.createWithBytes("Monaco", .utf8, false);
+    defer name.release();
+    const desc = try macos.text.FontDescriptor.createWithNameAndSize(name, 12);
+    defer desc.release();
+    const font = try macos.text.Font.createWithFontDescriptor(desc, 12);
+    defer font.release();
+
+    var hb_font = try createFont(font);
+    defer hb_font.destroy();
+}