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/SVGDocumentExtensions.h"
27 #include "core/svg/SVGParsingError.h"
28 #include "core/svg/SVGPreserveAspectRatio.h"
29 #include "core/svg/SVGRect.h"
30 #include "wtf/HashSet.h"
34 class AffineTransform;
37 class SVGFitToViewBox {
39 static AffineTransform viewBoxToViewTransform(const FloatRect& viewBoxRect, PassRefPtr<SVGPreserveAspectRatio>, float viewWidth, float viewHeight);
41 static bool isKnownAttribute(const QualifiedName&);
42 static void addSupportedAttributes(HashSet<QualifiedName>&);
44 template<class SVGElementTarget>
45 static bool parseAttribute(SVGElementTarget* target, const QualifiedName& name, const AtomicString& value)
49 SVGParsingError parseError = NoError;
51 if (name == SVGNames::viewBoxAttr) {
52 target->viewBox()->setBaseValueAsString(value, parseError);
53 if (target->viewBox()->baseValue()->width() < 0.0f) {
54 target->document().accessSVGExtensions()->reportError("A negative value for ViewBox width is not allowed");
55 target->viewBox()->baseValue()->setInvalid();
57 if (target->viewBox()->baseValue()->height() < 0.0f) {
58 target->document().accessSVGExtensions()->reportError("A negative value for ViewBox height is not allowed");
59 target->viewBox()->baseValue()->setInvalid();
61 } else if (name == SVGNames::preserveAspectRatioAttr) {
62 target->preserveAspectRatio()->setBaseValueAsString(value, parseError);
67 target->reportAttributeParsingError(parseError, name, value);
72 } // namespace WebCore
74 #endif // SVGFitToViewBox_h