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| -rw-r--r-- | include/drawinglayer/primitive2d/metafileprimitive2d.hxx | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/drawinglayer/primitive2d/metafileprimitive2d.hxx b/include/drawinglayer/primitive2d/metafileprimitive2d.hxx new file mode 100644 index 000000000..f4c399f31 --- /dev/null +++ b/include/drawinglayer/primitive2d/metafileprimitive2d.hxx @@ -0,0 +1,90 @@ +/* -*- 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 <drawinglayer/drawinglayerdllapi.h> + +#include <drawinglayer/primitive2d/baseprimitive2d.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <vcl/gdimtf.hxx> +#include <vcl/gdimetafiletools.hxx> + + +// MetafilePrimitive2D class + +namespace drawinglayer::primitive2d +{ + /** MetafilePrimitive2D class + + This is the MetaFile representing primitive. It's geometry is defined + by MetaFileTransform. The content (defined by MetaFile) will be scaled + to the geometric definition by using PrefMapMode and PrefSize of the + Metafile. + + It has shown that this not always guarantees that all Metafile content + is inside the geometric definition, but this primitive defines that this + is the case to allow a getB2DRange implementation. If it cannot be + guaranteed that the Metafile is inside the geometric definition, it should + be embedded to a MaskPrimitive2D. + + This primitive has no decomposition yet, so when not supported by a renderer, + it will not be visualized. + + In the future, a decomposition implementation would be appreciated and would + have many advantages; Metafile would no longer have to be rendered by + sub-systems and a standard way for converting Metafiles would exist. + */ + class DRAWINGLAYER_DLLPUBLIC MetafilePrimitive2D final : public BufferedDecompositionPrimitive2D, public MetafileAccessor + { + private: + /// the geometry definition + basegfx::B2DHomMatrix maMetaFileTransform; + + /// the content definition + GDIMetaFile maMetaFile; + + /// local decomposition. + virtual void create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const override; + public: + /// constructor + MetafilePrimitive2D( + const basegfx::B2DHomMatrix& rMetaFileTransform, + const GDIMetaFile& rMetaFile); + + /// data read access + const basegfx::B2DHomMatrix& getTransform() const { return maMetaFileTransform; } + const GDIMetaFile& getMetaFile() const { return maMetaFile; } + + /// compare operator + virtual bool operator==(const BasePrimitive2D& rPrimitive) const override; + + /// get range + virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override; + + /// from MetafileAccessor + virtual void accessMetafile(GDIMetaFile& rTargetMetafile) const override; + + /// provide unique ID + virtual sal_uInt32 getPrimitive2DID() const override; + }; +} // end of namespace drawinglayer::primitive2d + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |