| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #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> |
| |
| |
| /* 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 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 ::rtl::OUString SAL_CALL getImplementationName( ) throw (::com::sun::star::uno::RuntimeException); |
| virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException); |
| virtual ::com::sun::star::uno::Sequence< ::rtl::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 */ |