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+/* -*- 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: */