/src/libreoffice/include/drawinglayer/primitive2d/metafileprimitive2d.hxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | |
20 | | #pragma once |
21 | | |
22 | | #include <drawinglayer/drawinglayerdllapi.h> |
23 | | |
24 | | #include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx> |
25 | | #include <basegfx/matrix/b2dhommatrix.hxx> |
26 | | #include <vcl/gdimtf.hxx> |
27 | | #include <vcl/gdimetafiletools.hxx> |
28 | | |
29 | | |
30 | | // MetafilePrimitive2D class |
31 | | |
32 | | namespace drawinglayer::primitive2d |
33 | | { |
34 | | /** MetafilePrimitive2D class |
35 | | |
36 | | This is the MetaFile representing primitive. It's geometry is defined |
37 | | by MetaFileTransform. The content (defined by MetaFile) will be scaled |
38 | | to the geometric definition by using PrefMapMode and PrefSize of the |
39 | | Metafile. |
40 | | |
41 | | It has shown that this not always guarantees that all Metafile content |
42 | | is inside the geometric definition, but this primitive defines that this |
43 | | is the case to allow a getB2DRange implementation. If it cannot be |
44 | | guaranteed that the Metafile is inside the geometric definition, it should |
45 | | be embedded to a MaskPrimitive2D. |
46 | | |
47 | | This primitive has no decomposition yet, so when not supported by a renderer, |
48 | | it will not be visualized. |
49 | | |
50 | | In the future, a decomposition implementation would be appreciated and would |
51 | | have many advantages; Metafile would no longer have to be rendered by |
52 | | sub-systems and a standard way for converting Metafiles would exist. |
53 | | */ |
54 | | class DRAWINGLAYER_DLLPUBLIC MetafilePrimitive2D final : public BufferedDecompositionPrimitive2D, public MetafileAccessor |
55 | | { |
56 | | private: |
57 | | /// the geometry definition |
58 | | basegfx::B2DHomMatrix maMetaFileTransform; |
59 | | |
60 | | /// the content definition |
61 | | GDIMetaFile maMetaFile; |
62 | | |
63 | | /// local decomposition. |
64 | | virtual Primitive2DReference create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override; |
65 | | public: |
66 | | /// constructor |
67 | | MetafilePrimitive2D( |
68 | | basegfx::B2DHomMatrix aMetaFileTransform, |
69 | | const GDIMetaFile& rMetaFile); |
70 | | |
71 | | /// data read access |
72 | 11.8k | const basegfx::B2DHomMatrix& getTransform() const { return maMetaFileTransform; } |
73 | 29.1k | const GDIMetaFile& getMetaFile() const { return maMetaFile; } |
74 | | |
75 | | /// compare operator |
76 | | virtual bool operator==(const BasePrimitive2D& rPrimitive) const override; |
77 | | |
78 | | /// get range |
79 | | virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override; |
80 | | |
81 | | /// from MetafileAccessor |
82 | | virtual void accessMetafile(GDIMetaFile& rTargetMetafile) const override; |
83 | | |
84 | | /// provide unique ID |
85 | | virtual sal_uInt32 getPrimitive2DID() const override; |
86 | | }; |
87 | | } // end of namespace drawinglayer::primitive2d |
88 | | |
89 | | |
90 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |