1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
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#ifndef Pair_h
22#define Pair_h
23
24#include <wtf/RefCounted.h>
25#include "CSSPrimitiveValue.h"
26#include <wtf/PassRefPtr.h>
27
28namespace WebCore {
29
30// A primitive value representing a pair.  This is useful for properties like border-radius, background-size/position,
31// and border-spacing (all of which are space-separated sets of two values).  At the moment we are only using it for
32// border-radius and background-size, but (FIXME) border-spacing and background-position could be converted over to use
33// it (eliminating some extra -webkit- internal properties).
34class Pair : public RefCounted<Pair> {
35public:
36    static PassRefPtr<Pair> create()
37    {
38        return adoptRef(new Pair);
39    }
40    static PassRefPtr<Pair> create(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second)
41    {
42        return adoptRef(new Pair(first, second));
43    }
44    virtual ~Pair() { }
45
46    CSSPrimitiveValue* first() const { return m_first.get(); }
47    CSSPrimitiveValue* second() const { return m_second.get(); }
48
49    void setFirst(PassRefPtr<CSSPrimitiveValue> first) { m_first = first; }
50    void setSecond(PassRefPtr<CSSPrimitiveValue> second) { m_second = second; }
51
52private:
53    Pair() : m_first(0), m_second(0) { }
54    Pair(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second)
55        : m_first(first), m_second(second) { }
56
57    RefPtr<CSSPrimitiveValue> m_first;
58    RefPtr<CSSPrimitiveValue> m_second;
59};
60
61} // namespace
62
63#endif
64