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93 lines
2.8 KiB
93 lines
2.8 KiB
/*
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Copyright (C) 2001-2003 KSVG Team
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This file is part of the KDE project
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef SVGLocatableImpl_H
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#define SVGLocatableImpl_H
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#include "ksvg_lookup.h"
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namespace KSVG
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{
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class SVGRectImpl;
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class SVGMatrixImpl;
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class SVGElementImpl;
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class SVGLocatableImpl
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{
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public:
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SVGLocatableImpl();
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virtual ~SVGLocatableImpl();
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SVGElementImpl *nearestViewportElement() const { return m_nearestViewportElement; }
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SVGElementImpl *farthestViewportElement() const{ return m_farthestViewportElement; }
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virtual SVGRectImpl *getBBox();
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virtual SVGMatrixImpl *getCTM();
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virtual SVGMatrixImpl *getScreenCTM();
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// Faster access for when a new copy isn't required.
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const SVGMatrixImpl *screenCTM() const { return m_cachedScreenCTM; }
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SVGMatrixImpl *getTransformToElement(SVGElementImpl *element);
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// The local transformations concatenated together. 0 if
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// there are no local transformations.
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virtual const SVGMatrixImpl *localMatrix() { return 0; }
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bool cachedScreenCTMIsValid() const { return m_cachedScreenCTMIsValid; }
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void invalidateCachedMatrices() { m_cachedScreenCTMIsValid = false; }
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// If the cached matrix is invalid, update it and update any child elements
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// recursively. Otherwise, check child elements recursively.
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virtual void checkCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM);
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// Update the cached matrix, and update child element cached matrices,
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// recursively.
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virtual void updateCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM);
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// Called immediately after the screen ctm has been updated.
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virtual void onScreenCTMUpdated() {}
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protected:
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SVGElementImpl *m_nearestViewportElement;
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SVGElementImpl *m_farthestViewportElement;
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SVGMatrixImpl *m_cachedScreenCTM;
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bool m_cachedScreenCTMIsValid;
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public:
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KSVG_BASECLASS_GET
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enum
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{
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// Properties
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NearestViewportElement, FarthestViewportElement,
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// Functions
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GetBBox, GetCTM, GetScreenCTM, GetTransformToElement
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};
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KJS::Value getValueProperty(KJS::ExecState *exec, int token) const;
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};
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}
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KSVG_DEFINE_PROTOTYPE(SVGLocatableImplProto)
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KSVG_IMPLEMENT_PROTOFUNC(SVGLocatableImplProtoFunc, SVGLocatableImpl)
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#endif
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