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Diffstat (limited to 'include/canvas/base/cachedprimitivebase.hxx')
-rw-r--r-- | include/canvas/base/cachedprimitivebase.hxx | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/canvas/base/cachedprimitivebase.hxx b/include/canvas/base/cachedprimitivebase.hxx new file mode 100644 index 000000000000..8c7e1579f1e2 --- /dev/null +++ b/include/canvas/base/cachedprimitivebase.hxx @@ -0,0 +1,117 @@ +/* -*- 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_CANVAS_CACHEDPRIMITIVEBASE_HXX +#define INCLUDED_CANVAS_CACHEDPRIMITIVEBASE_HXX + +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/rendering/XCanvas.hpp> +#include <com/sun/star/rendering/XCachedPrimitive.hpp> +#include <com/sun/star/rendering/ViewState.hpp> +#include <cppuhelper/compbase2.hxx> +#include <comphelper/broadcasthelper.hxx> + +#include <canvas/canvastoolsdllapi.h> + +/* Definition of CachedPrimitiveBase class */ + +namespace canvas +{ + typedef ::cppu::WeakComponentImplHelper2< ::com::sun::star::rendering::XCachedPrimitive, + ::com::sun::star::lang::XServiceInfo > CachedPrimitiveBase_Base; + + /** Base class, providing common functionality for implementers of + the XCachedPrimitive interface. + */ + class CANVASTOOLS_DLLPUBLIC CachedPrimitiveBase : public CachedPrimitiveBase_Base, + public ::comphelper::OBaseMutex + { + public: + + /** Create an XCachedPrimitive for given target canvas + + @param rUsedViewState + The viewstate the original object was rendered with + + @param rTarget + The target canvas the repaint should happen on. + + @param bFailForChangedViewTransform + When true, derived classes will never receive doRedraw() + calls with dissimilar view transformations and + bSameViewTransform set to false. This is useful for cached + objects where re-transforming the generated output is not + desirable, e.g. for hinted font output. + */ + CachedPrimitiveBase( const ::com::sun::star::rendering::ViewState& rUsedViewState, + const ::com::sun::star::uno::Reference< + ::com::sun::star::rendering::XCanvas >& rTarget, + bool bFailForChangedViewTransform ); + + /// Dispose all internal references + virtual void SAL_CALL disposing(); + + // XCachedPrimitive + virtual ::sal_Int8 SAL_CALL redraw( const ::com::sun::star::rendering::ViewState& aState ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException); + + // XServiceInfo + virtual OUString SAL_CALL getImplementationName( ) throw (::com::sun::star::uno::RuntimeException); + virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException); + virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw (::com::sun::star::uno::RuntimeException); + + protected: + ~CachedPrimitiveBase(); // we're a ref-counted UNO class. _We_ destroy ourselves. + + private: + CachedPrimitiveBase( const CachedPrimitiveBase& ); + CachedPrimitiveBase& operator=( const CachedPrimitiveBase& ); + + /** Actually perform the requested redraw. + + Clients must override this method, instead of the public + redraw() one. + + @param rNewState + The viewstate to redraw with + + @param rOldState + The viewstate this cache object was created with. + + @param rTargetCanvas + Target canvas to render to. + + @param bSameViewTransform + When true, rNewState and rOldState have the same transformation. + */ + virtual ::sal_Int8 doRedraw( const ::com::sun::star::rendering::ViewState& rNewState, + const ::com::sun::star::rendering::ViewState& rOldState, + const ::com::sun::star::uno::Reference< + ::com::sun::star::rendering::XCanvas >& rTargetCanvas, + bool bSameViewTransform ) = 0; + + ::com::sun::star::rendering::ViewState maUsedViewState; + ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvas > mxTarget; + const bool mbFailForChangedViewTransform; + }; +} + +#endif /* INCLUDED_CANVAS_CACHEDPRIMITIVEBASE_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |