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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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/rendering/XCachedPrimitive.hpp>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <cppcanvas/canvas.hxx>
+
+#include <action.hxx>
+
+namespace basegfx { class B2DHomMatrix; }
+
+
+/* Definition of internal::CachedPrimitiveBase class */
+
+namespace cppcanvas::internal
+ {
+ /** Base class providing cached re-rendering, if XCanvas
+ returns XCachedPrimitive
+
+ Derive from this class and implement private render()
+ method to perform the actual primitive rendering. Return
+ cached primitive into given reference. Next time this
+ class' public render() method gets called, the cached
+ representation is taken.
+ */
+ class CachedPrimitiveBase : public Action
+ {
+ public:
+ /** Constructor
+
+ @param rCanvas
+ Canvas on which this primitive is to appear
+
+ @param bOnlyRedrawWithSameTransform
+ When true, this class only reuses the cached
+ primitive, if the overall transformation stays the
+ same. Otherwise, repaints are always performed via the
+ cached primitive.
+ */
+ CachedPrimitiveBase( CanvasSharedPtr xCanvas,
+ bool bOnlyRedrawWithSameTransform );
+
+ CachedPrimitiveBase(const CachedPrimitiveBase&) = delete;
+ const CachedPrimitiveBase& operator=(const CachedPrimitiveBase&) = delete;
+
+ virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const override;
+
+ protected:
+ using Action::render;
+
+ private:
+ virtual bool renderPrimitive( css::uno::Reference< css::rendering::XCachedPrimitive >& rCachedPrimitive,
+ const ::basegfx::B2DHomMatrix& rTransformation ) const = 0;
+
+ CanvasSharedPtr mpCanvas;
+ mutable css::uno::Reference< css::rendering::XCachedPrimitive > mxCachedPrimitive;
+ mutable ::basegfx::B2DHomMatrix maLastTransformation;
+ const bool mbOnlyRedrawWithSameTransform;
+ };
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */