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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
commit | 267c6f2ac71f92999e969232431ba04678e7437e (patch) | |
tree | 358c9467650e1d0a1d7227a21dac2e3d08b622b2 /cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip |
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx b/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx new file mode 100644 index 0000000000..48a31db5d2 --- /dev/null +++ b/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx @@ -0,0 +1,83 @@ +/* -*- 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: */ |