ui/gfx/text_utils_ios.mm

// Copyright 2013 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.

#include "ui/gfx/text_utils.h"

#import <UIKit/UIKit.h>

#include <cmath>

#include "base/strings/sys_string_conversions.h"
#include "ui/gfx/font_list.h"

namespace gfx {

int GetStringWidth(const base::string16& text, const FontList& font_list) {
  return std::ceil(GetStringWidthF(text, font_list));
}

float GetStringWidthF(const base::string16& text, const FontList& font_list) {
  NSString* ns_text = base::SysUTF16ToNSString(text);
  NativeFont native_font = font_list.GetPrimaryFont().GetNativeFont();
  if (!native_font)
    return 0;
  NSDictionary* attributes = @{ NSFontAttributeName : native_font };
  return std::ceil([ns_text sizeWithAttributes:attributes].width);
}

}  // namespace gfx