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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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/rendering/XCachedPrimitive.hpp>
+#include <com/sun/star/rendering/ViewState.hpp>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+
+#include <canvas/canvastoolsdllapi.h>
+
+namespace com::sun::star::rendering { class XCanvas; }
+
+/* Definition of CachedPrimitiveBase class */
+
+namespace canvas
+{
+ typedef cppu::WeakComponentImplHelper< css::rendering::XCachedPrimitive,
+ css::lang::XServiceInfo > CachedPrimitiveBase_Base;
+
+ /** Base class, providing common functionality for implementers of
+ the XCachedPrimitive interface.
+ */
+ class CANVASTOOLS_DLLPUBLIC CachedPrimitiveBase:
+ public cppu::BaseMutex, public CachedPrimitiveBase_Base
+ {
+ 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.
+ */
+ CachedPrimitiveBase( css::rendering::ViewState rUsedViewState,
+ css::uno::Reference< css::rendering::XCanvas > xTarget );
+
+ /// Dispose all internal references
+ virtual void SAL_CALL disposing() override;
+
+ // XCachedPrimitive
+ virtual ::sal_Int8 SAL_CALL redraw( const css::rendering::ViewState& aState ) override;
+
+ // XServiceInfo
+ virtual OUString SAL_CALL getImplementationName( ) override;
+ virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+ virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) override;
+
+ protected:
+ virtual ~CachedPrimitiveBase() override; // we're a ref-counted UNO class. _We_ destroy ourselves.
+
+ private:
+ CachedPrimitiveBase( const CachedPrimitiveBase& ) = delete;
+ CachedPrimitiveBase& operator=( const CachedPrimitiveBase& ) = delete;
+
+ /** 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 css::rendering::ViewState& rNewState,
+ const css::rendering::ViewState& rOldState,
+ const css::uno::Reference< css::rendering::XCanvas >& rTargetCanvas,
+ bool bSameViewTransform ) = 0;
+
+ css::rendering::ViewState maUsedViewState;
+ css::uno::Reference< css::rendering::XCanvas > mxTarget;
+ };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */