Struct traits for gfx::Range and gfx::RangeF.

ui/gfx/range/mojo/range_struct_traits.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_GFX_RANGE_MOJO_RANGE_STRUCT_TRAITS_H_
+#define UI_GFX_RANGE_MOJO_RANGE_STRUCT_TRAITS_H_
+
+#include "ui/gfx/range/mojo/range.mojom-shared.h"
+#include "ui/gfx/range/range.h"
+#include "ui/gfx/range/range_f.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<gfx::mojom::RangeDataView, gfx::Range> {
+  static uint32_t start(const gfx::Range& r) { return r.start(); }
+  static uint32_t end(const gfx::Range& r) { return r.end(); }
+  static bool Read(gfx::mojom::RangeDataView data, gfx::Range* out) {
+    out->set_start(data.start());
+    out->set_end(data.end());
+    return true;
+  }
+};
+
+template <>
+struct StructTraits<gfx::mojom::RangeFDataView, gfx::RangeF> {
+  static float start(const gfx::RangeF& r) { return r.start(); }
+  static float end(const gfx::RangeF& r) { return r.end(); }
+  static bool Read(gfx::mojom::RangeFDataView data, gfx::RangeF* out) {
+    out->set_start(data.start());
+    out->set_end(data.end());
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // UI_GFX_RANGE_MOJO_RANGE_STRUCT_TRAITS_H_