1 files changed, 103 insertions, 0 deletions
diff --git a/canvas/inc/base/cachedprimitivebase.hxx b/canvas/inc/base/cachedprimitivebase.hxx
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+++ b/canvas/inc/base/cachedprimitivebase.hxx
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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 <comphelper/compbase.hxx>
+
+#include <canvas/canvastoolsdllapi.h>
+
+namespace com::sun::star::rendering { class XCanvas; }
+
+/* Definition of CachedPrimitiveBase class */
+
+namespace canvas
+{
+    typedef comphelper::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 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 disposing(std::unique_lock<std::mutex>& rGuard) 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: */