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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "core/layout/LayoutThemeFontProvider.h"
#include "core/CSSValueKeywords.h"
#include "platform/fonts/FontDescription.h"
#include "platform/wtf/StdLibExtras.h"
#include "platform/wtf/text/WTFString.h"
namespace blink {
// static
void LayoutThemeFontProvider::SetDefaultFontSize(int font_size) {
default_font_size_ = static_cast<float>(font_size);
}
// static
void LayoutThemeFontProvider::SystemFont(CSSValueID system_font_id,
FontSelectionValue& font_slope,
FontSelectionValue& font_weight,
float& font_size,
AtomicString& font_family) {
font_weight = NormalWeightValue();
font_slope = NormalSlopeValue();
font_size = default_font_size_;
font_family = DefaultGUIFont();
switch (system_font_id) {
case CSSValueWebkitMiniControl:
case CSSValueWebkitSmallControl:
case CSSValueWebkitControl:
// Why 2 points smaller? Because that's what Gecko does. Note that we
// are assuming a 96dpi screen, which is the default that we use on
// Windows.
static const float kPointsPerInch = 72.0f;
static const float kPixelsPerInch = 96.0f;
font_size -= (2.0f / kPointsPerInch) * kPixelsPerInch;
break;
default:
break;
}
}
} // namespace blink