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- // Copyright (c) 2012 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/font_render_params.h"
- #include "base/notreached.h"
- namespace gfx {
- namespace {
- // Returns the system's default settings.
- FontRenderParams LoadDefaults() {
- FontRenderParams params;
- params.antialiasing = true;
- params.autohinter = true;
- params.use_bitmaps = true;
- params.subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_NONE;
- // Use subpixel text positioning to keep consistent character spacing when
- // the page is scaled by a fractional factor.
- params.subpixel_positioning = true;
- // Slight hinting renders much better than normal hinting on Android.
- params.hinting = FontRenderParams::HINTING_SLIGHT;
- return params;
- }
- // A device scale factor used to determine if subpixel positioning
- // should be used.
- float device_scale_factor_ = 1.0f;
- } // namespace
- FontRenderParams GetFontRenderParams(const FontRenderParamsQuery& query,
- std::string* family_out) {
- if (family_out)
- NOTIMPLEMENTED();
- // Customized font rendering settings are not supported, only defaults.
- static const gfx::FontRenderParams params(LoadDefaults());
- return params;
- }
- float GetFontRenderParamsDeviceScaleFactor() {
- return device_scale_factor_;
- }
- void SetFontRenderParamsDeviceScaleFactor(float device_scale_factor) {
- device_scale_factor_ = device_scale_factor;
- }
- } // namespace gfx
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