| /* |
| * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org> |
| * Copyright (C) 2014 Samsung Electronics. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| |
| #include "core/svg/SVGFitToViewBox.h" |
| |
| #include "core/dom/Attribute.h" |
| #include "core/svg/SVGDocumentExtensions.h" |
| #include "core/svg/SVGElement.h" |
| #include "core/svg/SVGParserUtilities.h" |
| #include "platform/geometry/FloatRect.h" |
| #include "platform/transforms/AffineTransform.h" |
| #include "wtf/text/StringImpl.h" |
| |
| namespace blink { |
| |
| SVGFitToViewBox::SVGFitToViewBox(SVGElement* element, PropertyMapPolicy propertyMapPolicy) |
| : m_viewBox(SVGAnimatedRect::create(element, SVGNames::viewBoxAttr)) |
| , m_preserveAspectRatio(SVGAnimatedPreserveAspectRatio::create(element, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio::create())) |
| { |
| ASSERT(element); |
| if (propertyMapPolicy == PropertyMapPolicyAdd) { |
| element->addToPropertyMap(m_viewBox); |
| element->addToPropertyMap(m_preserveAspectRatio); |
| } |
| } |
| |
| AffineTransform SVGFitToViewBox::viewBoxToViewTransform(const FloatRect& viewBoxRect, PassRefPtr<SVGPreserveAspectRatio> preserveAspectRatio, float viewWidth, float viewHeight) |
| { |
| if (!viewBoxRect.width() || !viewBoxRect.height()) |
| return AffineTransform(); |
| |
| return preserveAspectRatio->getCTM(viewBoxRect.x(), viewBoxRect.y(), viewBoxRect.width(), viewBoxRect.height(), viewWidth, viewHeight); |
| } |
| |
| bool SVGFitToViewBox::isKnownAttribute(const QualifiedName& attrName) |
| { |
| return attrName == SVGNames::viewBoxAttr || attrName == SVGNames::preserveAspectRatioAttr; |
| } |
| |
| void SVGFitToViewBox::addSupportedAttributes(HashSet<QualifiedName>& supportedAttributes) |
| { |
| supportedAttributes.add(SVGNames::viewBoxAttr); |
| supportedAttributes.add(SVGNames::preserveAspectRatioAttr); |
| } |
| |
| void SVGFitToViewBox::updateViewBox(const FloatRect& rect) |
| { |
| ASSERT(m_viewBox); |
| m_viewBox->baseValue()->setValue(rect); |
| } |
| |
| } |