ui/gfx/font_render_params_android.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/gfx/font_render_params.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace gfx {
  10
  11 namespace {
  12
  13 // Initializes |params| with the system's default settings.
  14 void LoadDefaults(FontRenderParams* params) {
  15   params->antialiasing = true;
  16   params->autohinter = true;
  17   params->use_bitmaps = true;
  18   params->subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_NONE;
  19
  20   // Use subpixel text positioning to keep consistent character spacing when
  21   // the page is scaled by a fractional factor.
  22   params->subpixel_positioning = true;
  23   // Slight hinting renders much better than normal hinting on Android.
  24   params->hinting = FontRenderParams::HINTING_SLIGHT;
  25 }
  26
  27 }  // namespace
  28
  29 const FontRenderParams& GetDefaultFontRenderParams() {
  30   static bool loaded_defaults = false;
  31   static FontRenderParams default_params;
  32   if (!loaded_defaults)
  33     LoadDefaults(&default_params);
  34   loaded_defaults = true;
  35   return default_params;
  36 }
  37
  38 FontRenderParams GetCustomFontRenderParams(
  39     bool for_web_contents,
  40     const std::vector<std::string>* family_list,
  41     const int* pixel_size,
  42     const int* point_size,
  43     std::string* family_out) {
  44   NOTIMPLEMENTED();
  45   return GetDefaultFontRenderParams();
  46 }
  47
  48 const FontRenderParams& GetDefaultWebKitFontRenderParams() {
  49   return GetDefaultFontRenderParams();
  50 }
  51
  52 }  // namespace gfx