/src/libreoffice/include/vcl/cairo.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 <vcl/vclptr.hxx> |
23 | | #include <memory> |
24 | | |
25 | | typedef struct _cairo_surface cairo_surface_t; |
26 | | typedef struct _cairo cairo_t; |
27 | | |
28 | | class VirtualDevice; |
29 | | |
30 | | namespace cairo { |
31 | | |
32 | | typedef std::shared_ptr<cairo_surface_t> CairoSurfaceSharedPtr; |
33 | | typedef std::shared_ptr<cairo_t> CairoSharedPtr; |
34 | | struct Surface; |
35 | | typedef std::shared_ptr<Surface> SurfaceSharedPtr; |
36 | | |
37 | | /** Cairo surface interface |
38 | | |
39 | | For each cairo-supported platform, there's an implementation of |
40 | | this interface |
41 | | */ |
42 | | struct Surface |
43 | | { |
44 | | public: |
45 | 0 | virtual ~Surface() {} |
46 | | |
47 | | // Query methods |
48 | | virtual CairoSharedPtr getCairo() const = 0; |
49 | | virtual CairoSurfaceSharedPtr getCairoSurface() const = 0; |
50 | | virtual SurfaceSharedPtr getSimilar(int cairo_content_type, int width, int height) const = 0; |
51 | | |
52 | | /// factory for VirDev on this surface |
53 | | virtual VclPtr<VirtualDevice> createVirtualDevice() const = 0; |
54 | | |
55 | | /// Resize the surface (possibly destroying content), only possible for X11 typically |
56 | | /// so on failure caller must create a new surface instead |
57 | 0 | virtual bool Resize( int /*width*/, int /*height*/ ) { return false; } |
58 | | |
59 | | /// Flush all pending output to surface |
60 | | virtual void flush() const = 0; |
61 | | }; |
62 | | |
63 | | } |
64 | | |
65 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |