1/*
2 * This file is part of the internal font implementation.  It should not be included by anyone other than
3 * FontMac.cpp, FontWin.cpp and Font.cpp.
4 *
5 * Copyright (C) 2006, 2007 Apple Inc.
6 * Copyright (C) 2007-2008 Torch Mobile, Inc.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB.  If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 *
23 */
24
25#ifndef FontPlatformData_h
26#define FontPlatformData_h
27
28#include "FontDescription.h"
29#include "FontOrientation.h"
30#include <wtf/Forward.h>
31#include <wtf/Noncopyable.h>
32#include <wtf/text/StringImpl.h>
33
34typedef struct tagTEXTMETRICW TEXTMETRIC;
35typedef struct tagLOGFONTW LOGFONT;
36
37namespace WebCore {
38
39    class FontPlatformPrivateData;
40
41    class FontPlatformData {
42
43    public:
44
45        FontPlatformData(): m_private(0) {}
46        FontPlatformData(float size, bool bold, bool oblique);
47
48        // Used for deleted values in the font cache's hash tables.
49        FontPlatformData(WTF::HashTableDeletedValueType) : m_private((FontPlatformPrivateData*)1) {}
50        bool isHashTableDeletedValue() const { return (unsigned)m_private == 1; }
51
52        FontPlatformData(const FontDescription& fontDescription, const AtomicString& family, bool useDefaultFontIfNotPresent = true);
53
54        ~FontPlatformData();
55
56        FontPlatformData(const FontPlatformData& o) : m_private(0) { operator=(o); }
57        FontPlatformData& operator=(const FontPlatformData& o);
58
59        int isValid() const { return reinterpret_cast<unsigned>(m_private) & ~1; }
60        HFONT hfont() const;
61        const TEXTMETRIC& metrics() const;
62        bool isSystemFont() const;
63        int size() const;
64        unsigned hash() const { return (unsigned)m_private; }
65        const FontDescription& fontDescription() const;
66        const AtomicString& family() const;
67        bool operator==(const FontPlatformData& other) const {     return m_private == other.m_private; }
68        HFONT getScaledFontHandle(int height, int width) const;
69        const LOGFONT& logFont() const;
70        bool isDisabled() const;
71        bool discardFontHandle();
72        DWORD codePages() const;
73
74        static bool isSongTiSupported();
75        static bool mapKnownFont(DWORD codePages, String& family);
76        static DWORD getKnownFontCodePages(const wchar_t* family);
77        static const String& defaultFontFamily();
78        static LONG adjustedGDIFontWeight(LONG gdiFontWeight, const String& family);
79
80        FontOrientation orientation() const { return Horizontal; } // FIXME: Implement.
81        void setOrientation(FontOrientation) { } // FIXME: Implement.
82
83#ifndef NDEBUG
84        String description() const;
85#endif
86
87    private:
88        FontPlatformPrivateData* m_private;
89    };
90
91}
92
93#endif
94