15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org> 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org> 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) Research In Motion Limited 2010. All rights reserved. 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef SVGLocatable_h 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define SVGLocatable_h 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/transforms/AffineTransform.h" 26e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "core/svg/SVGRect.h" 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 30df95704c49daea886ddad70775bda23618d6274dBen Murdochclass ExceptionState; 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class SVGElement; 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class SVGLocatable { 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual ~SVGLocatable() { } 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // 'SVGLocatable' functions 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual SVGElement* nearestViewportElement() const = 0; 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual SVGElement* farthestViewportElement() const = 0; 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) enum StyleUpdateStrategy { AllowStyleUpdate, DisallowStyleUpdate }; 4202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 43e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch virtual SVGRect getBBox(StyleUpdateStrategy) = 0; 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual AffineTransform getCTM(StyleUpdateStrategy) = 0; 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual AffineTransform getScreenCTM(StyleUpdateStrategy) = 0; 46df95704c49daea886ddad70775bda23618d6274dBen Murdoch AffineTransform getTransformToElement(SVGElement*, ExceptionState&, StyleUpdateStrategy = AllowStyleUpdate); 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static SVGElement* nearestViewportElement(const SVGElement*); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static SVGElement* farthestViewportElement(const SVGElement*); 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) enum CTMScope { 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) NearestViewportScope, // Used for getCTM() 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ScreenScope // Used for getScreenCTM() 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) }; 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)protected: 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const { return AffineTransform(); } 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 59e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch static SVGRect getBBox(SVGElement*, StyleUpdateStrategy); 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static AffineTransform computeCTM(SVGElement*, CTMScope, StyleUpdateStrategy); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // SVGLocatable_h 66