Split placement into dedicated C API files

Add auto-generated `placement_c.h/.cpp` for `native_placement_t` and conversion helpers, and remove placement enum definitions from `geometry_c.h` so geometry only contains point/size/rectangle types. Update `menu_c.h` to include `placement_c.h` where placement is used, and add generated boilerplate/interop setup to `geometry_c.h/.cpp`.

Author: lijy91

src/capi/geometry_c.cpp

@@ -0,0 +1,34 @@
+// AUTO-GENERATED. DO NOT EDIT.
+// Any manual changes WILL BE LOST when this file is regenerated.
+
+#include "geometry_c.h"
+
+#include "../foundation/geometry.h"
+
+namespace {
+
+native_point_t ToCPoint(const nativeapi::Point& value) {
+  native_point_t result = {};
+  result.x = value.x;
+  result.y = value.y;
+  return result;
+}
+
+native_size_t ToCSize(const nativeapi::Size& value) {
+  native_size_t result = {};
+  result.width = value.width;
+  result.height = value.height;
+  return result;
+}
+
+native_rectangle_t ToCRectangle(const nativeapi::Rectangle& value) {
+  native_rectangle_t result = {};
+  result.x = value.x;
+  result.y = value.y;
+  result.width = value.width;
+  result.height = value.height;
+  return result;
+}
+
+}  // namespace
+

src/capi/geometry_c.h

@@ -1,92 +1,37 @@
+// AUTO-GENERATED. DO NOT EDIT.
+// Any manual changes WILL BE LOST when this file is regenerated.
+
 #pragma once
 
-/**
- * Representation of a point
- */
+#include <stdbool.h>
+
+#if _WIN32
+#define FFI_PLUGIN_EXPORT __declspec(dllexport)
+#else
+#define FFI_PLUGIN_EXPORT
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct {
   double x;
   double y;
 } native_point_t;
 
-/**
- * Representation of a point
- */
 typedef struct {
   double width;
   double height;
 } native_size_t;
 
-/**
- * Representation of a rectangle
- */
 typedef struct {
   double x;
   double y;
   double width;
   double height;
 } native_rectangle_t;
 
-/**
- * Placement options for positioning UI elements relative to an anchor.
- */
-typedef enum {
-  /**
-   * Position above the anchor, horizontally centered.
-   */
-  NATIVE_PLACEMENT_TOP,
-
-  /**
-   * Position above the anchor, aligned to the start (left).
-   */
-  NATIVE_PLACEMENT_TOP_START,
-
-  /**
-   * Position above the anchor, aligned to the end (right).
-   */
-  NATIVE_PLACEMENT_TOP_END,
-
-  /**
-   * Position to the right of the anchor, vertically centered.
-   */
-  NATIVE_PLACEMENT_RIGHT,
-
-  /**
-   * Position to the right of the anchor, aligned to the start (top).
-   */
-  NATIVE_PLACEMENT_RIGHT_START,
-
-  /**
-   * Position to the right of the anchor, aligned to the end (bottom).
-   */
-  NATIVE_PLACEMENT_RIGHT_END,
-
-  /**
-   * Position below the anchor, horizontally centered.
-   */
-  NATIVE_PLACEMENT_BOTTOM,
-
-  /**
-   * Position below the anchor, aligned to the start (left).
-   */
-  NATIVE_PLACEMENT_BOTTOM_START,
-
-  /**
-   * Position below the anchor, aligned to the end (right).
-   */
-  NATIVE_PLACEMENT_BOTTOM_END,
-
-  /**
-   * Position to the left of the anchor, vertically centered.
-   */
-  NATIVE_PLACEMENT_LEFT,
-
-  /**
-   * Position to the left of the anchor, aligned to the start (top).
-   */
-  NATIVE_PLACEMENT_LEFT_START,
-
-  /**
-   * Position to the left of the anchor, aligned to the end (bottom).
-   */
-  NATIVE_PLACEMENT_LEFT_END
-} native_placement_t;
+#ifdef __cplusplus
+}
+#endif

src/capi/menu_c.h

@@ -4,6 +4,7 @@
 #include <stddef.h>
 #include <stdint.h>
 #include "geometry_c.h"
+#include "placement_c.h"
 
 #if _WIN32
 #define FFI_PLUGIN_EXPORT __declspec(dllexport)
@@ -17,6 +18,7 @@ extern "C" {
 
 #include "geometry_c.h"
 #include "image_c.h"
+#include "placement_c.h"
 #include "positioning_strategy_c.h"
 
 /**

src/capi/placement_c.cpp

@@ -0,0 +1,42 @@
+// AUTO-GENERATED. DO NOT EDIT.
+// Any manual changes WILL BE LOST when this file is regenerated.
+
+#include "placement_c.h"
+
+#include "../placement.h"
+
+namespace {
+
+native_placement_t ToCPlacement(nativeapi::Placement value) {
+  switch (value) {
+    case nativeapi::Placement::Top:
+      return NATIVE_PLACEMENT_TOP;
+    case nativeapi::Placement::TopStart:
+      return NATIVE_PLACEMENT_TOP_START;
+    case nativeapi::Placement::TopEnd:
+      return NATIVE_PLACEMENT_TOP_END;
+    case nativeapi::Placement::Right:
+      return NATIVE_PLACEMENT_RIGHT;
+    case nativeapi::Placement::RightStart:
+      return NATIVE_PLACEMENT_RIGHT_START;
+    case nativeapi::Placement::RightEnd:
+      return NATIVE_PLACEMENT_RIGHT_END;
+    case nativeapi::Placement::Bottom:
+      return NATIVE_PLACEMENT_BOTTOM;
+    case nativeapi::Placement::BottomStart:
+      return NATIVE_PLACEMENT_BOTTOM_START;
+    case nativeapi::Placement::BottomEnd:
+      return NATIVE_PLACEMENT_BOTTOM_END;
+    case nativeapi::Placement::Left:
+      return NATIVE_PLACEMENT_LEFT;
+    case nativeapi::Placement::LeftStart:
+      return NATIVE_PLACEMENT_LEFT_START;
+    case nativeapi::Placement::LeftEnd:
+      return NATIVE_PLACEMENT_LEFT_END;
+    default:
+      return NATIVE_PLACEMENT_TOP;
+  }
+}
+
+}  // namespace
+

src/capi/placement_c.h

@@ -0,0 +1,35 @@
+// AUTO-GENERATED. DO NOT EDIT.
+// Any manual changes WILL BE LOST when this file is regenerated.
+
+#pragma once
+
+#include <stdbool.h>
+
+#if _WIN32
+#define FFI_PLUGIN_EXPORT __declspec(dllexport)
+#else
+#define FFI_PLUGIN_EXPORT
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+  NATIVE_PLACEMENT_TOP = 0,
+  NATIVE_PLACEMENT_TOP_START = 1,
+  NATIVE_PLACEMENT_TOP_END = 2,
+  NATIVE_PLACEMENT_RIGHT = 3,
+  NATIVE_PLACEMENT_RIGHT_START = 4,
+  NATIVE_PLACEMENT_RIGHT_END = 5,
+  NATIVE_PLACEMENT_BOTTOM = 6,
+  NATIVE_PLACEMENT_BOTTOM_START = 7,
+  NATIVE_PLACEMENT_BOTTOM_END = 8,
+  NATIVE_PLACEMENT_LEFT = 9,
+  NATIVE_PLACEMENT_LEFT_START = 10,
+  NATIVE_PLACEMENT_LEFT_END = 11,
+} native_placement_t;
+
+#ifdef __cplusplus
+}
+#endif