1/*
2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
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#pragma once
22
23#include "ExceptionOr.h"
24#include "SVGPropertyTraits.h"
25
26namespace WebCore {
27
28class AffineTransform;
29class FloatRect;
30
31class SVGPreserveAspectRatioValue {
32 WTF_MAKE_FAST_ALLOCATED;
33public:
34 enum SVGPreserveAspectRatioType {
35 SVG_PRESERVEASPECTRATIO_UNKNOWN = 0,
36 SVG_PRESERVEASPECTRATIO_NONE = 1,
37 SVG_PRESERVEASPECTRATIO_XMINYMIN = 2,
38 SVG_PRESERVEASPECTRATIO_XMIDYMIN = 3,
39 SVG_PRESERVEASPECTRATIO_XMAXYMIN = 4,
40 SVG_PRESERVEASPECTRATIO_XMINYMID = 5,
41 SVG_PRESERVEASPECTRATIO_XMIDYMID = 6,
42 SVG_PRESERVEASPECTRATIO_XMAXYMID = 7,
43 SVG_PRESERVEASPECTRATIO_XMINYMAX = 8,
44 SVG_PRESERVEASPECTRATIO_XMIDYMAX = 9,
45 SVG_PRESERVEASPECTRATIO_XMAXYMAX = 10
46 };
47
48 enum SVGMeetOrSliceType {
49 SVG_MEETORSLICE_UNKNOWN = 0,
50 SVG_MEETORSLICE_MEET = 1,
51 SVG_MEETORSLICE_SLICE = 2
52 };
53
54 SVGPreserveAspectRatioValue();
55 SVGPreserveAspectRatioValue(const String&);
56
57 ExceptionOr<void> setAlign(unsigned short);
58 unsigned short align() const { return m_align; }
59
60 ExceptionOr<void> setMeetOrSlice(unsigned short);
61 unsigned short meetOrSlice() const { return m_meetOrSlice; }
62
63 void transformRect(FloatRect& destRect, FloatRect& srcRect) const;
64
65 AffineTransform getCTM(float logicalX, float logicalY, float logicalWidth, float logicalHeight, float physicalWidth, float physicalHeight) const;
66
67 void parse(const String&);
68 bool parse(const UChar*& currParam, const UChar* end, bool validate);
69
70 String valueAsString() const;
71
72private:
73 SVGPreserveAspectRatioType m_align;
74 SVGMeetOrSliceType m_meetOrSlice;
75
76 bool parseInternal(const UChar*& currParam, const UChar* end, bool validate);
77};
78
79template<> struct SVGPropertyTraits<SVGPreserveAspectRatioValue> {
80 static SVGPreserveAspectRatioValue initialValue() { return SVGPreserveAspectRatioValue(); }
81 static SVGPreserveAspectRatioValue fromString(const String& string) { return SVGPreserveAspectRatioValue(string); }
82 static Optional<SVGPreserveAspectRatioValue> parse(const QualifiedName&, const String&) { ASSERT_NOT_REACHED(); return initialValue(); }
83 static String toString(const SVGPreserveAspectRatioValue& type) { return type.valueAsString(); }
84};
85
86} // namespace WebCore
87