2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
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.
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.
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.
21 #ifndef SVGFitToViewBox_h
22 #define SVGFitToViewBox_h
25 #include "core/dom/QualifiedName.h"
26 #include "core/svg/SVGPreserveAspectRatio.h"
27 #include "core/svg/SVGRect.h"
28 #include "wtf/HashSet.h"
32 class AffineTransform;
35 class SVGFitToViewBox {
37 static AffineTransform viewBoxToViewTransform(const FloatRect& viewBoxRect, const SVGPreserveAspectRatio&, float viewWidth, float viewHeight);
39 static bool isKnownAttribute(const QualifiedName&);
40 static void addSupportedAttributes(HashSet<QualifiedName>&);
42 template<class SVGElementTarget>
43 static bool parseAttribute(SVGElementTarget* target, const QualifiedName& name, const AtomicString& value)
46 if (name == SVGNames::viewBoxAttr) {
48 bool valueIsValid = !value.isNull() && parseViewBox(&target->document(), value, viewBox);
50 target->setViewBoxBaseValue(viewBox);
52 target->setViewBoxBaseValue(SVGRect(SVGRect::InvalidSVGRectTag()));
56 if (name == SVGNames::preserveAspectRatioAttr) {
57 SVGPreserveAspectRatio preserveAspectRatio;
58 preserveAspectRatio.parse(value);
59 target->setPreserveAspectRatioBaseValue(preserveAspectRatio);
66 static bool parseViewBox(Document*, const LChar*& start, const LChar* end, FloatRect& viewBox, bool validate = true);
67 static bool parseViewBox(Document*, const UChar*& start, const UChar* end, FloatRect& viewBox, bool validate = true);
70 static bool parseViewBox(Document*, const String&, FloatRect&);
73 } // namespace WebCore
75 #endif // SVGFitToViewBox_h