1 /*
2 * Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef FontFamily_h
27 #define FontFamily_h
28
29 #include <wtf/RefCounted.h>
30 #include <wtf/ListRefPtr.h>
31 #include <wtf/text/AtomicString.h>
32
33 namespace WebCore {
34
35 class SharedFontFamily;
36
37 class FontFamily {
38 public:
FontFamily()39 FontFamily() { }
40 FontFamily(const FontFamily&);
41 FontFamily& operator=(const FontFamily&);
42
setFamily(const AtomicString & family)43 void setFamily(const AtomicString& family) { m_family = family; }
family()44 const AtomicString& family() const { return m_family; }
familyIsEmpty()45 bool familyIsEmpty() const { return m_family.isEmpty(); }
46
47 const FontFamily* next() const;
48
49 void appendFamily(PassRefPtr<SharedFontFamily>);
50 PassRefPtr<SharedFontFamily> releaseNext();
51
52 private:
53 AtomicString m_family;
54 ListRefPtr<SharedFontFamily> m_next;
55 };
56
57 class SharedFontFamily : public FontFamily, public RefCounted<SharedFontFamily> {
58 public:
create()59 static PassRefPtr<SharedFontFamily> create()
60 {
61 return adoptRef(new SharedFontFamily);
62 }
63
64 private:
SharedFontFamily()65 SharedFontFamily() { }
66 };
67
68 bool operator==(const FontFamily&, const FontFamily&);
69 inline bool operator!=(const FontFamily& a, const FontFamily& b) { return !(a == b); }
70
next()71 inline const FontFamily* FontFamily::next() const
72 {
73 return m_next.get();
74 }
75
appendFamily(PassRefPtr<SharedFontFamily> family)76 inline void FontFamily::appendFamily(PassRefPtr<SharedFontFamily> family)
77 {
78 m_next = family;
79 }
80
releaseNext()81 inline PassRefPtr<SharedFontFamily> FontFamily::releaseNext()
82 {
83 return m_next.release();
84 }
85
86 }
87
88 #endif
89