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 #ifndef SVGPreserveAspectRatio_h
22 #define SVGPreserveAspectRatio_h
23
24 #include "core/svg/properties/SVGPropertyHelper.h"
25
26 namespace blink {
27
28 class AffineTransform;
29 class FloatRect;
30 class SVGPreserveAspectRatioTearOff;
31
32 class SVGPreserveAspectRatio : public SVGPropertyHelper<SVGPreserveAspectRatio> {
33 public:
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 typedef SVGPreserveAspectRatioTearOff TearOffType;
55
create()56 static PassRefPtr<SVGPreserveAspectRatio> create()
57 {
58 return adoptRef(new SVGPreserveAspectRatio());
59 }
60
61 virtual PassRefPtr<SVGPreserveAspectRatio> clone() const;
62
63 bool operator==(const SVGPreserveAspectRatio&) const;
64 bool operator!=(const SVGPreserveAspectRatio& other) const { return !operator==(other); }
65
setAlign(SVGPreserveAspectRatioType align)66 void setAlign(SVGPreserveAspectRatioType align) { m_align = align; }
align()67 SVGPreserveAspectRatioType align() const { return m_align; }
68
setMeetOrSlice(SVGMeetOrSliceType meetOrSlice)69 void setMeetOrSlice(SVGMeetOrSliceType meetOrSlice) { m_meetOrSlice = meetOrSlice; }
meetOrSlice()70 SVGMeetOrSliceType meetOrSlice() const { return m_meetOrSlice; }
71
72 void transformRect(FloatRect& destRect, FloatRect& srcRect);
73
74 AffineTransform getCTM(float logicX, float logicY,
75 float logicWidth, float logicHeight,
76 float physWidth, float physHeight) const;
77
78 virtual String valueAsString() const OVERRIDE;
79 virtual void setValueAsString(const String&, ExceptionState&);
80 bool parse(const UChar*& ptr, const UChar* end, bool validate);
81 bool parse(const LChar*& ptr, const LChar* end, bool validate);
82
83 virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
84 virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) OVERRIDE;
85 virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement* contextElement) OVERRIDE;
86
classType()87 static AnimatedPropertyType classType() { return AnimatedPreserveAspectRatio; }
88
89 private:
90 SVGPreserveAspectRatio();
91
92 void setDefault();
93 template<typename CharType>
94 bool parseInternal(const CharType*& ptr, const CharType* end, bool validate);
95
96 SVGPreserveAspectRatioType m_align;
97 SVGMeetOrSliceType m_meetOrSlice;
98 };
99
toSVGPreserveAspectRatio(PassRefPtr<SVGPropertyBase> passBase)100 inline PassRefPtr<SVGPreserveAspectRatio> toSVGPreserveAspectRatio(PassRefPtr<SVGPropertyBase> passBase)
101 {
102 RefPtr<SVGPropertyBase> base = passBase;
103 ASSERT(base->type() == SVGPreserveAspectRatio::classType());
104 return static_pointer_cast<SVGPreserveAspectRatio>(base.release());
105 }
106
107 } // namespace blink
108
109 #endif // SVGPreserveAspectRatio_h
110