1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#ifndef FontSize_h
23#define FontSize_h
24
25namespace WebCore {
26
27class Document;
28
29enum ESmartMinimumForFontSize { DoNotUseSmartMinimumForFontSize, UseSmartMinimumForFontFize };
30
31class FontSize {
32private:
33    FontSize()
34    {
35    }
36
37public:
38    static float getComputedSizeFromSpecifiedSize(const Document*, float zoomFactor, bool isAbsoluteSize, float specifiedSize, ESmartMinimumForFontSize = UseSmartMinimumForFontFize);
39
40    // Given a CSS keyword in the range (xx-small to -webkit-xxx-large), this function will return
41    // the correct font size scaled relative to the user's default (medium).
42    static float fontSizeForKeyword(const Document*, int keyword, bool shouldUseFixedDefaultSize);
43
44    // Given a font size in pixel, this function will return legacy font size between 1 and 7.
45    static int legacyFontSize(const Document*, int pixelFontSize, bool shouldUseFixedDefaultSize);
46};
47
48} // namespace WebCore
49
50#endif // FontSize_h
51