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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.
#ifndef UI_BASE_LAYOUT_H_
#define UI_BASE_LAYOUT_H_
#pragma once
#include "ui/base/ui_export.h"
namespace ui {
enum DisplayLayout {
// Layout optimized for ASH. This enum value should go away as soon as
// LAYOUT_DESKTOP and LAYOUT_ASH are the same.
LAYOUT_ASH,
// The typical layout for e.g. Windows, Mac and Linux.
LAYOUT_DESKTOP,
// Layout optimized for touch. Used e.g. for Windows 8 Metro mode.
LAYOUT_TOUCH,
};
// Returns the display layout that should be used. This could be used
// e.g. to tweak hard-coded padding that's layout specific, or choose
// the .pak file of theme resources to load.
UI_EXPORT DisplayLayout GetDisplayLayout();
// Supported UI scale factors for the platform. This is used as an index
// into the array |kScaleFactorScales| which maps the enum value to a float.
enum ScaleFactor {
SCALE_FACTOR_100P = 0,
// The scale factor used for unscaled binary data, the 1x (default) scale
// factor data packs.
SCALE_FACTOR_NONE = SCALE_FACTOR_100P,
SCALE_FACTOR_200P,
};
// Returns the float scale value for |scale_factor|.
UI_EXPORT float GetScaleFactorScale(ScaleFactor scale_factor);
} // namespace ui
#endif // UI_BASE_LAYOUT_H_
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