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| -rw-r--r-- | include/drawinglayer/primitive3d/baseprimitive3d.hxx | 210 |
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diff --git a/include/drawinglayer/primitive3d/baseprimitive3d.hxx b/include/drawinglayer/primitive3d/baseprimitive3d.hxx new file mode 100644 index 000000000..f1a4c5e4d --- /dev/null +++ b/include/drawinglayer/primitive3d/baseprimitive3d.hxx @@ -0,0 +1,210 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE3D_BASEPRIMITIVE3D_HXX +#define INCLUDED_DRAWINGLAYER_PRIMITIVE3D_BASEPRIMITIVE3D_HXX + +#include <drawinglayer/drawinglayerdllapi.h> + +#include <cppuhelper/compbase.hxx> +#include <cppuhelper/basemutex.hxx> +#include <com/sun/star/graphic/XPrimitive3D.hpp> +#include <basegfx/range/b3drange.hxx> +#include <deque> + + +/** defines for DeclPrimitive3DIDBlock and ImplPrimitive3DIDBlock + Added to be able to simply change identification stuff later, e.g. add + an identification string and/or ID to the interface and to the implementation + ATM used to declare implement getPrimitive3DID() + */ + +#define DeclPrimitive3DIDBlock() \ + virtual sal_uInt32 getPrimitive3DID() const override; + +#define ImplPrimitive3DIDBlock(TheClass, TheID) \ + sal_uInt32 TheClass::getPrimitive3DID() const { return TheID; } + + +// predefines + +namespace drawinglayer::geometry { + class ViewInformation3D; +} + +namespace drawinglayer::primitive3d { + /// typedefs for basePrimitive3DImplBase, Primitive3DContainer and Primitive3DReference + typedef cppu::WeakComponentImplHelper< css::graphic::XPrimitive3D > BasePrimitive3DImplBase; + typedef css::uno::Reference< css::graphic::XPrimitive3D > Primitive3DReference; + + class SAL_WARN_UNUSED DRAWINGLAYER_DLLPUBLIC Primitive3DContainer : public std::deque< Primitive3DReference > + { + public: + explicit Primitive3DContainer() {} + explicit Primitive3DContainer( size_type count ) : deque(count) {} + Primitive3DContainer( const Primitive3DContainer& other ) : deque(other) {} + Primitive3DContainer( Primitive3DContainer&& other ) noexcept : deque(std::move(other)) {} + Primitive3DContainer( std::initializer_list<Primitive3DReference> init ) : deque(init) {} + template <class Iter> + Primitive3DContainer(Iter first, Iter last) : deque(first, last) {} + + void append(const Primitive3DContainer& rSource); + Primitive3DContainer& operator=(const Primitive3DContainer& r) { deque::operator=(r); return *this; } + Primitive3DContainer& operator=(Primitive3DContainer&& r) noexcept { deque::operator=(std::move(r)); return *this; } + bool operator==(const Primitive3DContainer& rB) const; + bool operator!=(const Primitive3DContainer& rB) const { return !operator==(rB); } + basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& aViewInformation) const; + }; +} + + +// basePrimitive3D class + +namespace drawinglayer::primitive3d + { + /** BasePrimitive3D class + + Baseclass for all C++ implementations of css::graphic::XPrimitive2D + + The description/functionality is identical with the 2D case in baseprimitive2d.hxx, + please see there for detailed information. + + Current Basic 3D Primitives are: + + - PolygonHairlinePrimitive3D (for 3D hairlines) + - PolyPolygonMaterialPrimitive3D (for 3D filled plane polygons) + + That's all for 3D! + */ + class DRAWINGLAYER_DLLPUBLIC BasePrimitive3D + : protected cppu::BaseMutex, + public BasePrimitive3DImplBase + { + BasePrimitive3D(const BasePrimitive3D&) = delete; + BasePrimitive3D& operator=( const BasePrimitive3D& ) = delete; + public: + // constructor/destructor + BasePrimitive3D(); + virtual ~BasePrimitive3D() override; + + /** the ==operator is mainly needed to allow testing newly-created high level primitives against their last + incarnation which buffers/holds the decompositions. The default implementation + uses getPrimitive3DID()-calls to test if it's the same ID at last. + Overridden implementation are then based on this implementation. + */ + virtual bool operator==( const BasePrimitive3D& rPrimitive ) const; + bool operator!=( const BasePrimitive3D& rPrimitive ) const { return !operator==(rPrimitive); } + + /** This method is for places where using the C++ implementation directly is possible. The subprocessing + and range merging is more efficient when working directly on basegfx::B3DRange. The default implementation + will use getDecomposition results to create the range + */ + virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const; + + /** provide unique ID for fast identifying of known primitive implementations in renderers. These use + the defines from primitivetypes3d.hxx to define unique IDs. + */ + virtual sal_uInt32 getPrimitive3DID() const = 0; + + /// The default implementation returns an empty sequence + virtual Primitive3DContainer get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const; + + + // Methods from XPrimitive3D + + + /** The getDecomposition implementation for UNO API will use getDecomposition from this implementation. It + will get the ViewInformation from the ViewParameters for that purpose + */ + virtual css::uno::Sequence< ::css::uno::Reference< ::css::graphic::XPrimitive3D > > SAL_CALL getDecomposition( const css::uno::Sequence< css::beans::PropertyValue >& rViewParameters ) override; + + /** the getRange default implementation will use getDecomposition to create the range information from merging + getRange results from the single local decomposition primitives. + */ + virtual css::geometry::RealRectangle3D SAL_CALL getRange( const css::uno::Sequence< css::beans::PropertyValue >& rViewParameters ) override; + }; + +} // end of namespace drawinglayer::primitive2d + + +// BufferedDecompositionPrimitive3D class + +namespace drawinglayer::primitive3d + { + /** BufferedDecompositionPrimitive3D class + + Baseclass for all C++ implementations of css::graphic::XPrimitive2D + + The description/functionality is identical with the 2D case in baseprimitive2d.hxx, + please see there for detailed information + */ + class DRAWINGLAYER_DLLPUBLIC BufferedDecompositionPrimitive3D + : public BasePrimitive3D + { + private: + /// a sequence used for buffering the last create3DDecomposition() result + Primitive3DContainer maBuffered3DDecomposition; + + protected: + /** access methods to maBuffered3DDecomposition. The usage of this methods may allow + later thread-safe stuff to be added if needed. Only to be used by getDecomposition() + implementations for buffering the last decomposition. + */ + const Primitive3DContainer& getBuffered3DDecomposition() const { return maBuffered3DDecomposition; } + void setBuffered3DDecomposition(const Primitive3DContainer& rNew) { maBuffered3DDecomposition = rNew; } + + /** method which is to be used to implement the local decomposition of a 2D primitive. The default + implementation will just return an empty decomposition + */ + virtual Primitive3DContainer create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const; + + public: + // constructor + BufferedDecompositionPrimitive3D(); + + /** The getDecomposition default implementation will on demand use create3DDecomposition() if + maBuffered3DDecomposition is empty. It will set maBuffered3DDecomposition to this obtained decomposition + to buffer it. If the decomposition is also ViewInformation-dependent, this method needs to be + overridden and the ViewInformation for the last decomposition needs to be remembered, too, and + be used in the next call to decide if the buffered decomposition may be reused or not. + */ + virtual Primitive3DContainer get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const override; + }; + +} // end of namespace drawinglayer::primitive3d + + +// tooling + +namespace drawinglayer::primitive3d + { + /// get B3DRange from a given Primitive3DReference + basegfx::B3DRange DRAWINGLAYER_DLLPUBLIC getB3DRangeFromPrimitive3DReference(const Primitive3DReference& rCandidate, const geometry::ViewInformation3D& aViewInformation); + + /** compare two Primitive2DReferences for equality, including trying to get implementations (BasePrimitive2D) + and using compare operator + */ + bool DRAWINGLAYER_DLLPUBLIC arePrimitive3DReferencesEqual(const Primitive3DReference& rA, const Primitive3DReference& rB); + +} // end of namespace drawinglayer::primitive3d + + +#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_BASEPRIMITIVE3D_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |