/src/libreoffice/cppcanvas/source/tools/canvasgraphichelper.cxx
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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 | | |
21 | | #include <canvasgraphichelper.hxx> |
22 | | |
23 | | #include <com/sun/star/rendering/XCanvas.hpp> |
24 | | |
25 | | #include <canvas/canvastools.hxx> |
26 | | #include <basegfx/utils/canvastools.hxx> |
27 | | #include <osl/diagnose.h> |
28 | | #include <utility> |
29 | | |
30 | | |
31 | | using namespace ::com::sun::star; |
32 | | |
33 | | /* Implementation of CanvasGraphicHelper class */ |
34 | | |
35 | | namespace cppcanvas::internal |
36 | | { |
37 | | CanvasGraphicHelper::CanvasGraphicHelper( CanvasSharedPtr xParentCanvas ) : |
38 | 0 | mpCanvas(std::move( xParentCanvas )) |
39 | 0 | { |
40 | 0 | OSL_ENSURE( mpCanvas && mpCanvas->getUNOCanvas().is(), |
41 | 0 | "CanvasGraphicHelper::CanvasGraphicHelper: no valid canvas" ); |
42 | |
|
43 | 0 | ::canvastools::initRenderState( maRenderState ); |
44 | 0 | } |
45 | | |
46 | | void CanvasGraphicHelper::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix ) |
47 | 0 | { |
48 | 0 | ::canvastools::setRenderStateTransform( maRenderState, rMatrix ); |
49 | 0 | } |
50 | | |
51 | | void CanvasGraphicHelper::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly ) |
52 | 0 | { |
53 | | // TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write |
54 | 0 | maClipPolyPolygon = rClipPoly; |
55 | 0 | maRenderState.Clip.clear(); |
56 | 0 | } |
57 | | |
58 | | void CanvasGraphicHelper::setClip() |
59 | 0 | { |
60 | 0 | maClipPolyPolygon.reset(); |
61 | 0 | maRenderState.Clip.clear(); |
62 | 0 | } |
63 | | |
64 | | const rendering::RenderState& CanvasGraphicHelper::getRenderState() const |
65 | 0 | { |
66 | 0 | if( maClipPolyPolygon && !maRenderState.Clip.is() ) |
67 | 0 | { |
68 | 0 | uno::Reference< rendering::XCanvas > xCanvas( mpCanvas->getUNOCanvas() ); |
69 | 0 | if( !xCanvas.is() ) |
70 | 0 | return maRenderState; |
71 | | |
72 | 0 | maRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( |
73 | 0 | xCanvas->getDevice(), |
74 | 0 | *maClipPolyPolygon ); |
75 | 0 | } |
76 | | |
77 | 0 | return maRenderState; |
78 | 0 | } |
79 | | |
80 | | void CanvasGraphicHelper::setCompositeOp( sal_Int8 aOp ) |
81 | 0 | { |
82 | 0 | maRenderState.CompositeOperation = aOp; |
83 | 0 | } |
84 | | |
85 | | } |
86 | | |
87 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |