From 510ed73ad74f54bf4ad12a4e59f7bb45a6f2b97e Mon Sep 17 00:00:00 2001
From: toolscode <46835624+toolscode@users.noreply.github.com>
Date: Tue, 10 Jun 2025 21:29:44 +0900
Subject: [PATCH] Added CTTypesetter APIs.

CTTypesetterCreateLine
CTTypesetterSuggestLineBreak
CTTypesetterCreateLineWithOffset
CTTypesetterSuggestClusterBreak
CTTypesetterSuggestClusterBreakWithOffset
---
 core-text/src/lib.rs        |  1 +
 core-text/src/typesetter.rs | 82 +++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 core-text/src/typesetter.rs

diff --git a/core-text/src/lib.rs b/core-text/src/lib.rs
index 8311c8b3..5756c1be 100644
--- a/core-text/src/lib.rs
+++ b/core-text/src/lib.rs
@@ -23,5 +23,6 @@ pub mod font_manager;
 pub mod frame;
 pub mod framesetter;
 pub mod line;
+pub mod typesetter;
 pub mod run;
 pub mod string_attributes;
diff --git a/core-text/src/typesetter.rs b/core-text/src/typesetter.rs
new file mode 100644
index 00000000..dad4bb42
--- /dev/null
+++ b/core-text/src/typesetter.rs
@@ -0,0 +1,82 @@
+// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// 20250606 added by jwhur
+
+use super::line::{CTLine, CTLineRef};
+use core_foundation::attributed_string::CFAttributedStringRef;
+use core_foundation::base::{CFIndex, CFRange, CFTypeID, TCFType};
+use core_foundation::dictionary::CFDictionaryRef;
+use core_foundation::{declare_TCFType, impl_CFTypeDescription, impl_TCFType};
+use core_graphics::geometry::CGSize;
+use core_graphics::path::{CGPath, CGPathRef};
+use foreign_types::{ForeignType, ForeignTypeRef};
+use std::ptr::null;
+
+#[repr(C)]
+pub struct __CTTypesetter(core::ffi::c_void);
+
+pub type CTTypesetterRef = *const __CTTypesetter;
+
+declare_TCFType! {
+    CTTypesetter, CTTypesetterRef
+}
+impl_TCFType!(CTTypesetter, CTTypesetterRef, CTTypesetterGetTypeID);
+impl_CFTypeDescription!(CTTypesetter);
+
+impl CTTypesetter {
+    pub fn new_with_attributed_string(string: CFAttributedStringRef) -> Self {
+        unsafe {
+            let ptr = CTTypesetterCreateWithAttributedString(string);
+            CTTypesetter::wrap_under_create_rule(ptr)
+        }
+    }
+
+    pub fn create_line(&self, string_range: CFRange) -> CTLine {
+        unsafe {
+            let ptr = CTTypesetterCreateLine(
+                self.as_concrete_TypeRef(),
+                string_range
+            );
+
+            CTLine::wrap_under_create_rule(ptr)
+        }
+    }
+}
+
+#[cfg_attr(feature = "link", link(name = "CoreText", kind = "framework"))]
+extern "C" {
+    fn CTTypesetterGetTypeID() -> CFTypeID;
+    fn CTTypesetterCreateWithAttributedString(string: CFAttributedStringRef) -> CTTypesetterRef;
+    fn CTTypesetterCreateLine(
+        typesetter: CTTypesetterRef,
+        string_range: CFRange,
+    ) -> CTLineRef;
+    fn CTTypesetterSuggestLineBreak(
+        typesetter: CTTypesetterRef,
+        startIndex: CFIndex,
+        width: f64,
+    ) -> CFIndex;
+    fn CTTypesetterCreateLineWithOffset(
+        typesetter: CTTypesetterRef,
+        startIndex: CFIndex,
+        offset: f64,
+    ) -> CFIndex;
+    fn CTTypesetterSuggestClusterBreak(
+        typesetter: CTTypesetterRef,
+        startIndex: CFIndex,
+        width: f64,
+    ) -> CFIndex;
+    fn CTTypesetterSuggestClusterBreakWithOffset(
+        typesetter: CTTypesetterRef,
+        startIndex: CFIndex,
+        width: f64,
+        offset: f64,
+    ) -> CFIndex;
+}